Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

590 files changed, 141947 insertions, 0 deletions

diff --git a/src/boost/libs/beast/CHANGELOG.md b/src/boost/libs/beast/CHANGELOG.md
new file mode 100644
index 000000000..63562ba97
--- /dev/null
+++ b/src/boost/libs/beast/CHANGELOG.md
@@ -0,0 +1,3535 @@
+Version 290:
+
+* Travis build host now bionic
+* Update Release Notes
+
+Version 289:
+
+* Fix Host header in websocket examples
+
+--------------------------------------------------------------------------------
+
+Version 288:
+
+* Fix Content-Length parsing
+* Update credits
+
+--------------------------------------------------------------------------------
+
+Version 287:
+
+* Remove CODE_OF_CONDUCT.md
+* Refactor websocket read
+* Correct buffer_bytes documentation
+* Fix examples to dispatch to strand
+* Ensure basic_stream::close will not throw
+
+--------------------------------------------------------------------------------
+
+Version 286:
+
+* Refactor multi_buffer
+* Refactor buffers_adapter
+* Refactor static_buffer
+* Refactor flat_buffer
+* Refactor flat_static_buffer
+* Fix missing include in sha1.hpp
+* Fix ostream warning
+* Field digest is endian-independent
+* update broken links in README
+* Fix ostream flush
+
+API Changes:
+
+* Nested const and mutable buffer types for all
+  Beast dynamic buffers are refactored. Affected types:
+  - buffers_adapter
+  - flat_buffer
+  - flat_static_buffer
+  - multi_buffer
+  - static_buffer
+  
+* Nested mutable_data_type in Beast dynamic buffers is deprecated:
+
+Changes Required:
+
+* Use nested mutable_buffers_type instead of mutable_data_type,
+  or define BOOST_BEAST_ALLOW_DEPRECATED
+
+--------------------------------------------------------------------------------
+
+Version 285:
+
+* Translate some win32 errors to net error codes
+* enable circleci integration
+* flat_buffer shrink_to_fit is noexcept
+* moved-from dynamic buffers do not clear if different allocator
+* fix erase field
+
+--------------------------------------------------------------------------------
+
+Version 284:
+
+* fix compilation macro documentation
+* examples use strands correctly
+* update root certificates in examples
+* clarify end-of-file behaviour in File::read docs
+* file_body returns short_read on eof during read
+* fix bug in win32 file_body
+
+--------------------------------------------------------------------------------
+
+Version 283:
+
+* ostream_buffer satisfies preconditions of DynamicBuffer_v1::commit
+* Add accessor function to File member of basic_file_body
+
+Version 282:
+
+* Use superproject docca
+* Fix release build of docs
+* file_win32 supports UTF-8 paths
+* file_stdio supports unicode paths
+
+--------------------------------------------------------------------------------
+
+Version 281:
+
+* Travis builds docs
+* Fix echo-op test
+* file_win32 bodies respect http::serializer::split
+
+--------------------------------------------------------------------------------
+
+Version 280:
+
+* Fix non-msvc cmake
+* Use docca master branch
+
+--------------------------------------------------------------------------------
+
+Version 279:
+
+* Use regular throw in test
+* Fix pragma warning
+
+--------------------------------------------------------------------------------
+
+Version 278:
+
+* Use regular throw in test
+
+--------------------------------------------------------------------------------
+
+Version 277:
+
+* Update release notes
+
+--------------------------------------------------------------------------------
+
+Version 276:
+
+* https_get example sends the Host header
+* Fix async_close error code when async_read times out
+* Refactor zlib tests and fix enum typo
+
+--------------------------------------------------------------------------------
+
+Version 275:
+
+* Async init-fns use the executor's default token
+* Add basic_stream::rebind_executor
+* Use automatically deduced return types for all async operations
+* Support Concepts for completion token params
+
+--------------------------------------------------------------------------------
+
+Version 274:
+
+* Fix leftovers in basic_parser corner case
+
+--------------------------------------------------------------------------------
+
+Version 273:
+
+* Squelch spurious websocket timer assert
+* Use the executor type in basic_stream timer
+
+--------------------------------------------------------------------------------
+
+Version 272:
+
+* Add BEAST_THROWS
+* Add zlib tests and fixes
+
+--------------------------------------------------------------------------------
+
+Version 271:
+
+* Add HTTP async client with system_executor example
+* Add WebSocket async client with system_executor example
+* Fix data race in HTTP server examples
+* Fix data race in WebSocket examples
+
+--------------------------------------------------------------------------------
+
+Version 270:
+
+* Silence unused variables
+* Fix typo
+
+--------------------------------------------------------------------------------
+
+Version 269:
+
+* Fix /permissive- missing include
+* Add test
+
+--------------------------------------------------------------------------------
+
+Version 268:
+
+* root_certificates.hpp is not for production
+
+--------------------------------------------------------------------------------
+
+Version 267:
+
+* Add package for Travis config
+* Fix signed/unsigned mismatch in file_stdio::seek
+* basic_stream dtor cannot throw
+* cmake: check policy first
+* Add default dtors to satisfy -Wnon-virtual-dtor
+* Multiple I/O of the same type is not supported
+
+--------------------------------------------------------------------------------
+
+Version 266:
+
+* Fix some missing deduced return types in the docs
+
+--------------------------------------------------------------------------------
+
+Version 265:
+
+* Fix outgoing websocket message compression
+
+--------------------------------------------------------------------------------
+
+Version 264:
+
+* Handle overflow in max size calculation in `basic_dynamic_body`
+* Fix unused variable warnings in tests
+* Fix missing initializer warning in `basic_fields`
+* Remove unused functions in `impl/static_string.hpp`
+* Fix unused variable warning in `multi_buffer`
+* Fix header-only compilation errors in some configurations
+* Workaround for miscompilation in MSVC 14.2
+
+--------------------------------------------------------------------------------
+
+Version 263:
+
+* Update documentation
+
+--------------------------------------------------------------------------------
+
+Version 262:
+
+* Fix deallocate in multi_buffer
+
+--------------------------------------------------------------------------------
+
+Version 261:
+
+* Deduplicate `websocket::read_size_hint` definition
+* Fix UB in websocket read tests
+* Remove redundant includes in websocket
+* Simplify websocket::detail::prng
+* Don't over-allocate in http::basic_fields
+* Fix multi_buffer allocation alignment
+* Tidy up buffers_range
+
+--------------------------------------------------------------------------------
+
+Version 260:
+
+* More split compilation in rfc7230.hpp
+* Qualify calls to `beast::iequals` in basic_parser.ipp
+* More split compilation in websocket/detail/mask.hpp
+* Cleanup transitive includes in beast/core/detail/type_traits.hpp
+* Simplify generation of sec-websocket-key
+* Move detail::base64 helpers to tests
+* Remove redundant includes in core
+
+--------------------------------------------------------------------------------
+
+Version 259:
+
+* Reduce the number of instantiations of filter_token_list
+* Remove the use of `static_string` from `http::fields`
+* Add gcc-9 to AzP CI test matrix
+* Enable split compilation in http::basic_fields
+* Remove redundant instation of `static_string` in websocket
+* Remove redundant use of `asio::coroutine` in `flat_stream`
+* Remove unused includes from `test::stream`
+* Move `char_buffer` into a separate file
+* Fix coverage collection in AzP CI
+* Improve performance of `http::string_to_verb`
+* Replace uses of `net::coroutine` with `asio::coroutine`
+* Replace uses of `net::spawn` with `asio::spawn`
+* Use `beast::read_size` in `detail::read`
+
+--------------------------------------------------------------------------------
+
+Version 258:
+
+* Fix separate compilation in CI
+* Fix clang inititalization warning in websocket
+* Remove redundant use of `yield_to` in parser tests
+* Add VS 2019 AzP CI matrix item
+* Clean up typo in chat websocket javascript client
+
+--------------------------------------------------------------------------------
+
+Version 257:
+
+* Add b2 features for compile-time options used in testing
+* Remove redundant dependencies in http/server/fast example
+* Remove experimental/unit_test/thread.hpp
+* Use `if` statement in basic_stream::transfer_op
+* Fix flat_buffer copy members
+
+--------------------------------------------------------------------------------
+
+Version 256:
+
+* Remove uses of the deprecated `buffers` function
+* Remove uses of deprecated methods in websocket tests
+* Remove redundant use of `static_string`
+* Remove redundant template in service_base
+* Expand CI matrix using Azure Pipelines
+* Make chat websocket javascript client more user friendly
+* `allocator_traits::construct` is used for user-defined types
+* Add 1-element specialization for `buffers_cat`
+* Fix `buffers_cat` iterator tests
+* Don't pessimize-move
+* Use steady_timer type
+* Preserve operation_aborted on partial message
+
+--------------------------------------------------------------------------------
+
+Version 255:
+
+* Add idle ping suspend test
+* Fix moved-from executor in idle ping timeout
+
+--------------------------------------------------------------------------------
+
+Version 254:
+
+* Fix data race in test::stream::connect
+* Fix UB in websocket close tests
+* Fix uninitalized memory use in deflate_stream
+* Fix gcc-8 warning in websocket::stream
+
+--------------------------------------------------------------------------------
+
+Version 253:
+
+* Fix async_detect_ssl handler type
+* member get_executor const-correctness
+* Fix min/max on MSVC
+* Relax requirements for vector_body
+
+--------------------------------------------------------------------------------
+
+Version 252:
+
+* More std::string_view fixes
+* CI copies to libs/beast
+
+--------------------------------------------------------------------------------
+
+Version 251:
+
+* Clean up CI scripts
+* detect_ssl uses bool
+* launder pointers
+* Fix compilation on MSVC with std::string_view
+* Replace static_string in parser
+
+--------------------------------------------------------------------------------
+
+Version 250:
+
+* Use SaxonHE in reference generation
+* Cleanup endianness conversions
+* Set parser status and flags even if body_limit_ has been reached
+
+--------------------------------------------------------------------------------
+
+Version 249:
+
+* Move friend function template definition
+
+--------------------------------------------------------------------------------
+
+Version 248:
+
+* Don't use a moved-from handler
+
+--------------------------------------------------------------------------------
+
+Version 247:
+
+* Fix async_base immediate completion
+
+--------------------------------------------------------------------------------
+
+Version 246:
+
+* decorator ctor is explicit
+
+--------------------------------------------------------------------------------
+
+Version 245:
+
+* decorator constructor is constrained
+
+--------------------------------------------------------------------------------
+
+Version 244:
+
+* Tidy up declval in some traits
+* Fix websocket keep-alive ping expiration
+
+--------------------------------------------------------------------------------
+
+Version 243:
+
+* Fix some typos
+* Tidy up file_stdio for VS2015
+* Fix http::message constructor constraint
+
+--------------------------------------------------------------------------------
+
+Version 242:
+
+* test::stream has deprecated lowest_layer for ssl
+* MSVC uses ::fopen_s
+* Fix http::message constructor constraint
+* Check defined(BOOST_MSVC)
+
+--------------------------------------------------------------------------------
+
+Version 241:
+
+* Tidy up a doc code snippet
+* basic_parser::content_length is stable (API Change)
+
+--------------------------------------------------------------------------------
+
+Version 240:
+
+* Fix ssl_stream teardown
+
+--------------------------------------------------------------------------------
+
+Version 239:
+
+* More split compilation in HTTP
+
+--------------------------------------------------------------------------------
+
+Version 238:
+
+* Refactor Jamfiles to work with release layout
+
+--------------------------------------------------------------------------------
+
+Version 237:
+
+* cmake: Use static libs to speed up builds
+
+--------------------------------------------------------------------------------
+
+Version 236:
+
+* root_certificates.hpp: brought in the server certificate
+
+--------------------------------------------------------------------------------
+
+Version 235:
+
+* Fix self-assignment warning in buffer test
+* Jamfile cleanup
+
+--------------------------------------------------------------------------------
+
+Version 234:
+
+* Don't link to OpenSSL needlessly (bjam)
+* HTTPS URLs in README.md
+
+--------------------------------------------------------------------------------
+
+Version 233:
+
+* Check __ANDROID__ instead
+* Use secure TLS/SSL versions
+
+--------------------------------------------------------------------------------
+
+Version 232:
+
+* Fix close_socket for net::basic_socket changes
+* Fix file_win32_write_op async initiation
+* Fix basic_stream lowest_layer for ssl
+
+--------------------------------------------------------------------------------
+
+Version 231:
+
+* Doc section names are stable
+* Add missing include
+* Constrain to_static_string to integers
+
+--------------------------------------------------------------------------------
+
+Version 230:
+
+* Don't use dynamic_buffer_ref
+* Remove dynamic_buffer_ref
+* Fix completion handler invocation signatures
+
+--------------------------------------------------------------------------------
+
+Version 229:
+
+* Rename to buffer_bytes
+* Tidy up examples
+* detect_ssl returns a bool
+* Fix stable_async_base example
+
+API Changes:
+
+* handler_ptr is deprecated
+
+Actions Required:
+
+* Replace use of `handler_ptr` with `stable_async_base`
+  and `allocate_stable`.
+
+--------------------------------------------------------------------------------
+
+Version 228:
+
+* Fix UB in decorator:
+* Sync up convenience headers
+* The Fields concept is deprecated (API Change)
+* Fix includes.xsl for newer doxygen
+* Tidy up quick reference
+* SSL teardowns are in an associated namespace
+
+--------------------------------------------------------------------------------
+
+Version 227:
+
+* Fix decorator for certain sizes
+
+--------------------------------------------------------------------------------
+
+Version 226:
+
+* Support -fno-exceptions
+* make_strand is in net::
+* Fix HTTP parser static string calculation
+* Move parser definitions to .ipp
+* Appveyor uses msvc-14.0
+
+--------------------------------------------------------------------------------
+
+Version 225:
+
+* Tidy up an unused function
+* Fix wsload jamfile
+* Examples use flat_buffer
+* Remove session_alloc (API Change)
+
+Actions Required:
+
+* Don't use session_alloc
+
+--------------------------------------------------------------------------------
+
+Version 224:
+
+* Remove extraneous error check in advanced-server-flex
+* Advanced servers use HTTP parser interfaces for reading
+* Reusing an HTTP parser returns an error
+
+--------------------------------------------------------------------------------
+
+Version 223:
+
+* Add test::stream::service
+* Add websocket service
+* Pausation abandoning test
+* Destroy abandoned websocket ops on shutdown
+
+--------------------------------------------------------------------------------
+
+Version 222:
+
+* stream_base::timeout::suggested is a nested function
+
+--------------------------------------------------------------------------------
+
+Version 221:
+
+* Rename to async_base, stable_async_base
+* role_type is in boost/beast/core/role.hpp (API Change)
+* Cleanup in test::stream internals
+* Pass references as pointers to async_initiate
+
+Actions Required:
+
+* Include <boost/beast/core/role.hpp> or
+  define BOOST_BEAST_ALLOW_DEPRECATED=1
+
+--------------------------------------------------------------------------------
+
+Version 220:
+
+* Documentation and release notes
+
+--------------------------------------------------------------------------------
+
+Version 219:
+
+* More split definitions in test::stream
+* Visual Studio 2017 minimum requirement for Windows
+* Better treatment of SSL short reads
+* ssl_stream is a public interface
+* basic_parser is abstract, not CRTP (API Change)
+* OpenSSL is required for tests and examples
+
+--------------------------------------------------------------------------------
+
+Version 218:
+
+* detect_ssl, async_detect_ssl are public interfaces
+* Add OpenSSL installation/setup instructions
+* Enable split Beast compilation for tests
+
+--------------------------------------------------------------------------------
+
+Version 217:
+
+* websocket idle pings
+* RatePolicy documentation
+* Pass strand to async_accept
+* Fix file_body_win32
+* Use async_initiate
+* Check BOOST_NO_CXX11_THREAD_LOCAL
+* Fast prng is pcg
+
+--------------------------------------------------------------------------------
+
+Version 216:
+
+* Refactor websocket::stream operations
+* Add websocket::stream timeouts
+* Use suggested timeouts in Websocket examples
+* Add make_strand
+* Add RatePolicy to basic_stream
+* Use async_initiate in basic_stream
+* basic_stream connects are members
+* Beast supports latest Asio changes (API Change)
+* WebSocket Decorator is a socket option (API Change)
+* Overloads of the following functions which accept a Decorator
+  are deprecated:
+  - accept, accept_ex
+  - handshake, handshake_ex
+  - async_accept, async_accept_ex
+  - async_handshake, async_handshake_ex
+
+Actions Required:
+
+* Code which passes decorator to any `websocket::stream` member
+  function should call `stream::set_option` instead with a newly
+  constructed `stream_base::decorator` object containing the
+  decorator. Alternatively, the macro `BOOST_BEAST_ALLOW_DEPRECATED`
+  may be defined to 1.
+
+* Fix compilation errors required by Asio changes
+
+--------------------------------------------------------------------------------
+
+Version 215:
+
+* basic_stream uses boost::shared_ptr
+* Remove bind_back_handler
+* bind_front_handler works with member functions
+* Examples use bind_front_handler
+* Add experimental test/handler.hpp
+* Rename to async_op_base::invoke_now
+* Add async_op_base::invoke
+* Remove CppCon2018 example
+* Examples use ssl_stream
+
+--------------------------------------------------------------------------------
+
+Version 214:
+
+* Handler binders use the associated allocator
+* Add detail::bind_continuation
+* Rewrite the echo-op example
+
+--------------------------------------------------------------------------------
+
+Version 213:
+
+* Fix posix_file::close handling of EINTR
+* basic_stream subsumes stranded_stream:
+* Use timeouts in HTTP server examples
+* Use timeouts in HTTP client examples
+* Use tcp_stream in WebSocket client examples
+* Use tcp_stream in WebSocket server examples
+* Use tcp_stream, HTTP timeouts in advanced servers
+
+--------------------------------------------------------------------------------
+
+Version 212:
+
+* dynamic_buffer_ref tests and tidy
+* flat_stream tests and tidy
+* stranded_socket tests and tidy
+* buffers_front tests
+* Improved websocket stream documentation
+
+--------------------------------------------------------------------------------
+
+Version 211:
+
+* close_socket is in stream_traits.hpp
+* Improvements to test::stream
+* Add stranded_stream
+* Add flat_stream
+* flat_buffer::clear preserves capacity
+* multi_buffer::clear preserves capacity
+* Fixes to rfc7230
+
+--------------------------------------------------------------------------------
+
+Version 210:
+
+* Tidy up read implementation
+* Fix stable_async_op_base javadoc
+* Better handling of stream timeouts
+* Add stream_traits.hpp
+* Add executor_type trait
+* Fix hexadecimal string conversion table
+* is_completion_handler, type_traits.hpp are deprecated
+* Fixes to test::stream::async_read
+
+API Changes:
+
+* Stream traits are now in stream_traits.hpp
+* `is_file` is now in file_base.hpp
+* is_completion_handler is deprecated
+
+Actions Required:
+
+* Include stream_traits.hpp as needed
+* Include file_base.hpp as needed
+* Use std::is_invocable instead of is_completion_handler
+
+--------------------------------------------------------------------------------
+
+Version 209:
+
+* Faster http::string_to_field
+* async_echo supports move-only handlers
+* test::stream maintains a handler work guard
+* Qualify buffer_copy, don't qualify buffer_size
+* Add dynamic_buffer_ref
+* Refactor quickref.xml
+* Add buffer_size
+
+--------------------------------------------------------------------------------
+
+Version 208:
+
+* Add get_lowest_layer free function
+* Add lowest_layer_type metafunction
+* Add close_socket, beast_close_socket customization
+* Doc work
+
+--------------------------------------------------------------------------------
+
+Version 207
+
+* Send from the strand
+* Pass the correct handler in basic_timeout_stream
+
+API Changes:
+
+* lowest_layer is removed
+
+Actions Required:
+
+* Remove lowest_layer and lowest_layer_type from user-defined streams.
+* Use the get_lowest_layer free function and the lowest_layer_type trait
+  as needed.
+
+--------------------------------------------------------------------------------
+
+Version 206
+
+* Clear error codes idiomatically
+* websocket stream uses shared_ptr<impl_type>
+* Add websocket-chat-multi example
+
+--------------------------------------------------------------------------------
+
+Version 205
+
+* Doc work
+* Add detail/soft_mutex.hpp
+* Add detail/prng.hpp
+
+--------------------------------------------------------------------------------
+
+Version 204
+
+* Add basic_timeout_stream
+* Unit test macros use the global suite
+* Doc work
+
+--------------------------------------------------------------------------------
+
+Version 203
+
+* Update networking refresher doc
+* Include error code in call to set_option
+* saved_handler is a public interface
+* Use new saved_handler in websocket
+* session_alloc is thread-safe
+* examples use flat_buffer
+* parse_until is not static
+* Boost.System is header-only
+
+--------------------------------------------------------------------------------
+
+Version 202
+
+* Use cxxstd instead of cxxflags
+* Update coverage badge images
+* Tidy up basic_stream_socket docs
+* Refactor async_op_base
+* Use async_op_base
+* async_op_base is a public interface
+* Add tests for bind_back_handler
+* Add tests for async_op_base
+
+--------------------------------------------------------------------------------
+
+Version 201
+
+* Decay bound arguments in handler wrapper parameters
+* Add bind_back_handler
+* Tidy up default-constructed iterators
+* Add core errors and conditions
+* New basic_stream_socket
+
+--------------------------------------------------------------------------------
+
+Version 200
+
+* Don't include OpenSSL for core snippets
+* Tidy up msvc-14 workaround in multi_buffer
+* buffers_cat fixes and coverage
+* Refactor buffers_adaptor
+* Refactor buffers_range
+* Fix and refactor buffers_cat
+* Refactor buffers_prefix
+* Add const and mutable buffer sequence traits
+* Add buffers_iterator_type trait
+* Use new buffer traits, remove old unused traits
+* Optimize for size on buffers_cat preconditions
+* Refactor buffers_suffix
+* Tidy up flat_buffer tests
+* Fix ostream prepare calculation for low limits
+* Tidy up flat_static_buffer tests
+* Add more tests for dynamic buffers
+* Tidy up multi_buffer
+* Refactor ostream
+* Refactor static_buffer
+* HTTP tidying
+* Adjust static_asio lib options in Jamfile
+* Add type_traits tests
+* Add buffers_range_ref (replaces reference_wrapper parameter)
+
+API Changes:
+
+* buffers_adaptor replaces buffers_adapter (rename)
+* make_printable replaces buffers (rename)
+* Remove file_mode::append_new
+
+Actions Required:
+
+* Replace buffers_adapter.hpp with buffers_adaptor.hpp, and
+  replace buffers_adapter with buffers_adaptor. Or, define
+  BOOST_BEAST_ALLOW_DEPRECATED
+
+* Replace call sites to use make_printable instead of buffers,
+  and also include make_printable.hpp instead of ostream.hpp.
+
+* Replace file_mode::append_new with file_mode::append
+  or file_mode::append_existing instead of file_mode::append_new
+
+--------------------------------------------------------------------------------
+
+Version 199:
+
+* Workarounds for msvc-14
+* Fix Appveyor badge links
+
+--------------------------------------------------------------------------------
+
+Version 198:
+
+* flat_buffer improvements
+* multi_buffer improvements
+* static_buffer improvements
+* flat_static_buffer_improvements
+* saved_handler maintains a work_guard (websocket)
+* Add buffer_traits.hpp, buffers_type
+* Tidy up experimental files
+* Tidy up core files
+* Fix bind_handler, bind_front_handler
+* Improved handler bind wrapper tests
+
+API Changes:
+
+* Files return errc::bad_file_descriptor
+* flat_static_buffer::reset is deprecated
+
+Actions Required:
+
+* Callers checking for errc::invalid_argument from calls to
+  file APIs should check for errc::bad_file_descriptor instead.
+
+* Replace calls to flat_static_buffer::reset with
+  flat_static_buffer::clear
+
+--------------------------------------------------------------------------------
+
+Version 197:
+
+* Improvements to echo-op example
+* Crawler example clears the response before each read
+* Use a struct instead of a pair in flat_stream (experimental)
+
+API Changes:
+
+* Refactor HTTP operations
+
+Actions Required:
+
+* Callers depending on the return value of http::read or
+  http::async_read overloads should adjust the usage of
+  the returned value as needed.
+
+--------------------------------------------------------------------------------
+
+Version 196:
+
+* Tidy up calls to placement new
+* Remove unused type_traits
+* Simplify handler_ptr
+
+--------------------------------------------------------------------------------
+
+Version 195:
+
+* net is a namespace alias for boost::asio
+* Simplify multi_buffer and static_buffer sequences
+* Documentation work
+
+--------------------------------------------------------------------------------
+
+Version 194:
+
+* http::async_read returns the right byte count on error
+* Add net namespace alias
+* Don't use-after-free in test
+* Tidy up ssl_stream (experimental)
+* Dynamic buffer improvements
+* Saved handlers are dispatched
+
+--------------------------------------------------------------------------------
+
+Version 193:
+
+* Update ssl_stream signatures for networking changes
+* Fix test::stream async_result transformation
+* Tidy up test::stream
+* Enable explicit instantiation of websocket::stream
+
+--------------------------------------------------------------------------------
+
+Version 192:
+
+* Use mp11::integer_sequence
+* Tidy up warnings and deprecated usage
+* http::message is not-a boost::empty_value
+* Fix link in docs
+* Fixes to timeout services (experimental)
+
+--------------------------------------------------------------------------------
+
+Version 191:
+
+* Add bind_front_handler
+* Use bind_front_handler
+* Simplify some type traits
+* Use lean_tuple in buffers_cat
+* Use lean_tuple in bind_handler, bind_front_handler
+* Use mp11 in detail::variant
+* Fix buffers_cat uninitialized warning
+* Fix static_string uninitialized warning
+* Fix warning in is_ssl_handshake
+
+--------------------------------------------------------------------------------
+
+Version 190:
+
+* Add missing includes to convenience headers
+* Unit test framework is experimental
+* Add buffers_range
+* Rename experimental directory
+* Improve compilation of tests for continuous integration
+* Fix visibility warnings in test
+
+--------------------------------------------------------------------------------
+
+Version 189-hf1:
+
+* Fix broken doc link
+* example/cppcon2018 only requires C++11
+
+--------------------------------------------------------------------------------
+
+Version 189:
+
+* Add CppCon2018 chat server example and video
+
+--------------------------------------------------------------------------------
+
+Version 188:
+
+* Remove extraneous strand from example
+* Add missing include in http/read.ipp
+* Test for gcc warning bug
+* Fix a spurious gcc warning
+
+--------------------------------------------------------------------------------
+
+Version 187:
+
+* Add experimental timeout_socket
+* Fix warning in file tests
+* Fix uninitialized comparison in buffers iterator
+* Partial support for BOOST_NO_EXCEPTIONS
+* Fix a spurious gcc warning
+* Test for gcc warning bug
+* Add missing include
+* Remove extraneous strand from example
+
+--------------------------------------------------------------------------------
+
+Version 186:
+
+* basic_fields uses intrusive base hooks
+* Fix parsing of out-of-bounds hex values
+
+--------------------------------------------------------------------------------
+
+Version 185:
+
+* Remove extraneous function
+* Fix some typos
+* Add BOOST_BEAST_USE_STD_STRING_VIEW
+* Fix timer on websocket upgrade in examples
+
+--------------------------------------------------------------------------------
+
+Version 183:
+
+* Fix a rare case of failed UTF8 validation
+* Verify certificates in client examples
+* Use boost::empty_value
+* Workaround for http-server-fast and libstdc++
+
+--------------------------------------------------------------------------------
+
+Version 182:
+
+* Silence ubsan false positive
+
+--------------------------------------------------------------------------------
+
+Version 181:
+
+* Fix parse_dec algorithm
+* Add parse_dec tests
+
+--------------------------------------------------------------------------------
+
+Version 180:
+
+* Fix http_server_stackless_ssl.cpp example
+
+--------------------------------------------------------------------------------
+
+Version 179:
+
+* Use the exchange() idiom in move constructors
+* Most members of std::allocate are deprecated in C++17
+* Remove some unused variables
+
+--------------------------------------------------------------------------------
+
+Version 178:
+
+* Use static_cast instead
+
+--------------------------------------------------------------------------------
+
+Version 177:
+
+* Add test for issue #1188
+* Set /permissive-
+* Check error in example set_option
+
+--------------------------------------------------------------------------------
+
+Version 176:
+
+* Tidy up Quick Reference
+* Fix array end calculation in utf8 assertion
+* WebSocket masks use secure PRNG by default
+
+--------------------------------------------------------------------------------
+
+Version 175:
+
+* Fix initialization warning
+
+--------------------------------------------------------------------------------
+
+Version 174:
+
+* Fix Fields, FieldsWriter concept docs
+* Fix BodyReader constructor requirements doc
+
+--------------------------------------------------------------------------------
+
+Version 173:
+
+* Remove Autobahn testsuite doc note
+* Fix buffers_adapter iterator value type
+* Fix buffers_adapter max_size
+* Fix buffers_prefix iterator decrement
+* buffers_adapter improvements
+* Add icy_stream Shoutcast stream filter
+
+--------------------------------------------------------------------------------
+
+Version 172:
+
+* Tidy up websocket stream javadocs
+* Fix move-only arguments in bind_handler
+* Fix http::parser constructor javadoc
+* Tidy up test::stream javadocs
+* Tidy up composed operation doc
+
+--------------------------------------------------------------------------------
+
+Version 171:
+
+* Add handler_ptr::has_value
+* Remove spurious assert
+* Fix unused variable warning
+
+--------------------------------------------------------------------------------
+
+Version 170:
+
+* Add flat_stream to experimental
+* Add ssl_stream to experimental
+* Add test::error to experimental
+* Add test::fail_count to experimental
+* Add test::stream to experimental
+* Use a shared string for example HTTP server doc roots
+* Remove deprecated serializer::reader_impl()
+* Remove deprecated Body reader and writer ctor signatures
+* Add is_mutable_body_writer metafunction
+* Add const and non-const overloads for message based http writes
+* Use the root certificate which matches the fingerprint
+
+--------------------------------------------------------------------------------
+
+Version 169:
+
+* Use buffers_to_string in tests
+* Use boost::void_t
+* Refactor HTTP write_op implementation
+* Use fully qualified namespace in BOOST_BEAST_HANDLER_INIT
+* New flat_stream example class
+* Use flat_stream in ssl_stream example code
+
+--------------------------------------------------------------------------------
+
+Version 168:
+
+* Use executor_work_guard in composed operations
+* Revert verb.ipp change which caused spurious warnings
+* Fix race in advanced server examples
+
+--------------------------------------------------------------------------------
+
+Version 167:
+
+* Revert: Tidy up calls to post()
+
+--------------------------------------------------------------------------------
+
+Version 166:
+
+* Use boost::is_convertible as a workaround
+
+--------------------------------------------------------------------------------
+
+Version 165:
+
+* Fix BOOST_NO_CXX11_ALLOCATOR check
+
+--------------------------------------------------------------------------------
+
+Version 164:
+
+* Fix masking on continuation frames
+* Add Access-Control-Expose-Headers field constant
+
+--------------------------------------------------------------------------------
+
+Version 163:
+
+* Tidy up calls to post()
+* Fix narrowing warnings
+
+--------------------------------------------------------------------------------
+
+Version 162:
+
+* Add asio_handler_invoke overloads for stream algorithms
+* Improve websocket::stream::control_callback javadoc
+
+--------------------------------------------------------------------------------
+
+Version 161:
+
+* Don't copy the handler in write_some_op
+* Add move-only handler tests
+* Fix handler parameter javadocs
+
+--------------------------------------------------------------------------------
+
+Version 160:
+
+* Examples clear the HTTP message before reading
+
+--------------------------------------------------------------------------------
+
+Version 159:
+
+* Fix typo in release notes
+* Safe treatment of zero-length string arguments in basic_fields
+* Some basic_fields operations now give the strong exception guarantee
+
+--------------------------------------------------------------------------------
+
+Version 158:
+
+* Tidy up end_of_stream javadoc
+* Tidy up websocket docs
+* Examples set reuse_address(true)
+* Advanced servers support clean shutdown via SIGINT or SIGTERM
+* DynamicBuffer input areas are not mutable
+* Tidy up some documentation
+
+API Changes:
+
+* get_lowest_layer is a type alias
+
+Actions required:
+
+* Replace instances of `typename get_lowest_layer<T>::type`
+  with `get_lowest_layer<T>`.
+
+--------------------------------------------------------------------------------
+
+Version 157:
+
+* Fix teardown for TIME_WAIT
+* Fix big-endian websocket masking
+
+--------------------------------------------------------------------------------
+
+Version 156:
+
+* Don't use typeid
+* Add release notes to documentation
+* Fix stale link for void-or-deduced
+
+--------------------------------------------------------------------------------
+
+Version 155:
+
+* Fix memory leak in advanced server examples
+* Fix soft-mutex assert in websocket stream
+* Fix fallthrough warnings
+* Tidy up bind_handler doc
+
+--------------------------------------------------------------------------------
+
+Version 154:
+
+* Type check completion handlers
+* bind_handler doc update
+* bind_handler works with boost placeholders
+
+--------------------------------------------------------------------------------
+
+Version 153:
+
+* Remove BOOST_VERSION checks
+* Use make_error_code for setting an error_code from errc
+* Use boost::winapi::GetLastError() consistently
+* Update README.md for branches
+* Avoid string_view::clear
+* Fix iterator version of basic_fields::erase
+* Fix use-after-move in example request handlers
+* Add Bishop Fox interview media
+
+--------------------------------------------------------------------------------
+
+Version 152:
+
+* Refactor detect_ssl_op
+* Disable gdb on Travis for Meltdown
+
+WebSocket:
+
+* Redistribute the read tests in the translation units
+* Refactor error headers
+* Add WebSocket error conditions
+
+API Changes:
+
+* Refactor WebSocket errors (API Change):
+
+Actions Required:
+
+* Code which explicitly compares error_code values against the
+  constant `websocket::error::handshake_failed` should compare
+  against `websocket::condition::handshake_failed` instead.
+
+* Code which explicitly compares error_code values against the
+  constant `websocket::error::failed` should compare
+  against `websocket::condition::protocol_violation` instead.
+
+--------------------------------------------------------------------------------
+
+Version 151:
+
+* Sanitizer failures are errors
+* Depend on container_hash
+* Fix high-ASCII in source file
+
+WebSocket:
+
+* Control callback is invoked on the execution context
+* Add stream_fwd.hpp
+* Remove unnecessary include
+
+API Changes:
+
+* http::parser is not MoveConstructible
+* permessage-deflate is a compile-time feature
+
+--------------------------------------------------------------------------------
+
+Version 150:
+
+* handler_ptr tests
+* Documentation
+
+API Changes:
+
+* serializer::reader_impl is deprecated
+
+Actions Required:
+
+* Call serializer::writer_impl instead of reader_impl
+
+--------------------------------------------------------------------------------
+
+Version 149:
+
+* built-in r-value return values can't be assigned
+* Tidy up ssl_stream special members
+* Fix CMakeLists.txt variable
+* Protect calls from macros
+* pausation always allocates
+* Don't copy completion handlers
+* handler_ptr is move-only
+* Fix Travis memory utilization
+
+API Changes:
+
+* handler_ptr gives the strong exception guarantee
+
+Actions Required:
+
+* Change the constructor signature for state objects
+  used with handler_ptr to receive a const reference to
+  the handler.
+
+--------------------------------------------------------------------------------
+
+Version 148:
+
+* Install codecov on codecov CI targets only
+* Update reports for hybrid assessment
+* Handle invalid deflate frames
+
+--------------------------------------------------------------------------------
+
+Version 147:
+
+* Don't use boost::string_ref
+* Use iterator wrapper in detail::buffers_range
+
+HTTP:
+
+* Tidy up basic_fields exception specifiers
+
+WebSocket:
+
+* control callback is copied or moved
+* Send idle pings in advanced servers
+
+--------------------------------------------------------------------------------
+
+Version 146:
+
+* Fix some typos
+* Faster ascii_tolower
+* Documentation tidying
+* Fix typo in examples documentation
+* Add detail::aligned_union and tidy up
+* Use variant in buffers_cat_view
+
+API Changes:
+
+* Remove unintended public members of handler_ptr
+
+--------------------------------------------------------------------------------
+
+Version 145:
+
+* Rename some detail functions
+* Refactor basic_fields allocator internals
+* Refactor HTTP async read composed operations
+* null_buffers is deprecated
+* Version 124 works with Boost 1.65.1 and earlier
+* basic_fields does not support fancy pointers
+
+--------------------------------------------------------------------------------
+
+Version 144-hf1:
+
+* Update reports for hybrid assessment
+* Handle invalid deflate frames
+* Install codecov on codecov CI targets only
+
+--------------------------------------------------------------------------------
+
+Version 144:
+
+* Fix websocket permessage-deflate negotiation
+
+--------------------------------------------------------------------------------
+
+Version 143:
+
+* Fix autobahn report link
+
+--------------------------------------------------------------------------------
+
+Version 142:
+
+* Warn about upcoming API changes to certain concepts
+* Fix name typo in http write test
+
+--------------------------------------------------------------------------------
+
+Version 141:
+
+* Tidy up some documentation
+
+--------------------------------------------------------------------------------
+
+Version 140:
+
+* Fix some integer warnings in 64-bit builds
+* Fix utf8_checker test failures
+* Fix signature for async_read_some, and tests
+* Tidy up basic_parser
+* Some basic_fields special members are protected
+
+--------------------------------------------------------------------------------
+
+Version 139:
+
+* Revisit boost library min/max guidance
+
+--------------------------------------------------------------------------------
+
+Version 138:
+
+* Tidy up some documentation
+
+--------------------------------------------------------------------------------
+
+Version 137:
+
+* ConstBufferSequence mandates pointer equivalence
+* Add FieldsWriter constructor requirement
+* Tidy up some documented constructor syntax
+
+--------------------------------------------------------------------------------
+
+Version 136:
+
+* Tidy up message doc image
+
+--------------------------------------------------------------------------------
+
+Version 135:
+
+* Fix typo in example server help text
+
+--------------------------------------------------------------------------------
+
+Version 134:
+
+* Add static_buffer_base default constructor definition
+
+--------------------------------------------------------------------------------
+
+Version 133:
+
+* Remove const&& overload of message::body
+
+--------------------------------------------------------------------------------
+
+Version 132:
+
+* Tidy up project folders in CMakeLists.txt
+* Rename Cmake variables for clarity
+* Add ref-qualified overloads for message::body
+* Tidy up FieldsReader doc
+
+API Changes:
+
+* Fields::writer replaces Fields::reader
+* BodyReader and BodyWriter names are swapped
+
+Actions Required:
+
+* Rename reader to writer for user defined Fields
+* Swap the reader and writer names for user defined Body types
+* Swap use of is_body_reader and is_body_writer
+
+--------------------------------------------------------------------------------
+
+Version 131:
+
+* basic_fields returns const values
+* Set SNI hostname in example SSL clients
+
+--------------------------------------------------------------------------------
+
+Version 130:
+
+* Tidy up fallthrough warning
+* Remove cxx11_sfinae_expr build requirement from tests
+
+--------------------------------------------------------------------------------
+
+Version 129:
+
+* Add autobahn test report to doc
+* Documentation tidying
+* Fix prepare_payload: chunked is HTTP/1.1
+
+--------------------------------------------------------------------------------
+
+Version 128:
+
+* Update doc links
+* Add explicit-failures-markup.xml
+
+HTTP:
+
+* Add message::need_eof
+* Use message::need_eof in example servers
+* Use synchronous writes in chunk output example
+
+WebSocket:
+
+* Fix utf8 validation for autobahn
+* Temporarily disable utf8 validation tests
+* Tidy up fast websocket server host names
+
+API Changes:
+
+* Remove serializer::keep_alive
+* Remove serializer::chunked
+* Add has_content_length_impl to Fields
+* Add message::has_content_length
+* Rename some basic_parser observers
+
+Actions Required:
+
+* Call message::keep_alive instead of serializer::keep_alive
+* Call serializer::get::chunked instead of serializer::chunked
+* Implement has_content_length_impl for user-defined Fields
+* Remove the "is_" prefix from call sites invoking certain basic_parser members
+
+--------------------------------------------------------------------------------
+
+Version 127:
+
+* Add BOOST_BEAST_NO_POSIX_FADVISE
+* Version command line option for HTTP client examples
+* More Jamfile compiler requirements for tests
+
+--------------------------------------------------------------------------------
+
+Version 126:
+
+* Add CppCon2017 presentation link
+* Update README.md
+* Update stream write documentation for end of stream changes
+* Tidy up unused variable warnings
+* Don't return end_of_stream on win32 file body writes
+* Fix doc typo
+* Fix shadowing in session_alloc
+* Fix executor type compilation
+* Add Travis tests with the default compilers
+* Update Boost.WinAPI usage to the new location and namespace.
+* Fix buffered_read_stream async_read_some signature
+
+--------------------------------------------------------------------------------
+
+Version 125:
+
+API Changes:
+
+* Update for Net-TS Asio
+
+Actions Required:
+
+* Use BOOST_ASIO_HANDLER_TYPE instead of handler_type
+* Use BOOST_ASIO_INITFN_RESULT_TYPE instead of async_result
+* Use boost::asio::async_completion
+* Use boost::asio::is_dynamic_buffer
+* Use boost::asio::is_const_buffer_sequence
+* Use boost::asio::is_mutable_buffer_sequence
+* boost::asio::associated_allocator_t replaces handler_alloc
+
+--------------------------------------------------------------------------------
+
+Version 124:
+
+* Fix for a test matrix compiler
+* Fix basic_fields javadoc
+
+API Changes:
+
+* http write returns success on connection close
+
+Actions Required:
+
+* Add code to servers to close the connection after successfully
+  writing a message where `message::keep_alive()` would return `false`.
+
+--------------------------------------------------------------------------------
+
+Version 123:
+
+* Use unit-test subtree
+* Fix spurious race in websocket close test
+* Check compiler feature in Jamfile
+* Clear previous message fields in parser
+
+--------------------------------------------------------------------------------
+
+Version 122:
+
+* Add test for issue 807
+* assert on empty buffer in websocket read
+* Fix zlib symbol conflicts
+* CMake 3.5.1 is required
+* config.hpp is not a public header
+* Add missing case in error test
+
+--------------------------------------------------------------------------------
+
+Version 121:
+
+* Add test for issue 802
+* Fix enum and non-enum in conditional exp. warning
+
+--------------------------------------------------------------------------------
+
+Version 120:
+
+* Fix spurious strand_ in advanced_server_flex
+* OpenSSL targets are optional (CMake)
+
+--------------------------------------------------------------------------------
+
+Version 119:
+
+* Tidy up doc badge links
+
+--------------------------------------------------------------------------------
+
+Version 118:
+
+* file_win32 opens for read-only in shared mode
+* Remove unused strands in server examples
+* Update build instructions
+* Doc root is at index.html
+
+HTTP:
+
+* Fix writing header into std::ostream
+
+--------------------------------------------------------------------------------
+
+Version 117:
+
+* Add buffers_to_string
+
+API Changes:
+
+* buffers_suffix replaces consuming_buffers
+* buffers_prefix replaces buffer_prefix
+* buffers_prefix_view replaces buffer_prefix_view
+* buffers_front replaces buffer_front
+* buffers_cat replaces buffer_cat
+* buffers_cat_view replaces buffer_cat_view
+* Remove buffers_suffix::get
+
+Actions Required:
+
+* Use buffers_suffix instead of consuming_buffers
+* Use buffers_prefix instead of buffer_prefix
+* Use buffers_prefix_view instead of buffer_prefix_view
+* Use buffers_front instead of buffer_front
+* Use buffers_cat instead of buffer_cat
+* Use buffers_cat_view instead of buffer_cat_view
+* Avoid calling buffers_suffix::get
+
+--------------------------------------------------------------------------------
+
+Version 116:
+
+API Changes:
+
+* message::body is a member function
+* message::version is a member function
+
+Actions Required:
+
+* Call member function message::body instead of accessing
+  the data member at call sites.
+
+* Call member function message::version instead of accessing
+  the version member at call sites.
+
+--------------------------------------------------------------------------------
+
+Version 115:
+
+* Update README.md master doc link
+
+--------------------------------------------------------------------------------
+
+Version 114:
+
+(No changes)
+
+--------------------------------------------------------------------------------
+
+Version 113:
+
+* Fix handler signature in async_read_header
+* Remove field_range copy constructor
+
+--------------------------------------------------------------------------------
+
+Version 112:
+
+* Update websocket notes
+
+API Changes:
+
+* WebSocket writes return the bytes transferred
+
+* HTTP reads and writes return bytes transferred
+
+Actions Required:
+
+* Modify websocket write completion handlers to receive
+  the extra std::size_t bytes_transferred parameter.
+
+* Modify HTTP read and/or write completion handlers to
+  receive the extra std::size_t bytes_transferred parameter.
+
+--------------------------------------------------------------------------------
+
+Version 111:
+
+WebSocket:
+
+* Fix utf8 check split code point at buffer end
+* Refactor stream operations and tests plus coverage
+* Suspended ops special members
+
+--------------------------------------------------------------------------------
+
+Version 110:
+
+* Refactor stream open state variable
+* Refactor websocket stream members
+* Refactor websocket stream: fixes and tests
+* Add test::stream::lowest_layer
+* Fix invalid iterator in test reporter
+
+--------------------------------------------------------------------------------
+
+Version 109:
+
+* refactor test::stream
+
+WebSocket:
+
+* Fix async_read_some handler signature
+* websocket close fixes and tests
+* websocket handshake uses coroutine
+* websocket ping tests
+* Fix websocket close_op resume state
+* websocket write tests
+* split up websocket tests
+* websocket read tests
+
+API Changes:
+
+* websocket accept refactoring
+
+Actions Required:
+
+* Do not call websocket accept overloads which take
+  both a message and a buffer sequence, as it is
+  illegal per rfc6455.
+
+--------------------------------------------------------------------------------
+
+Version 108:
+
+* Fix argument parsing in HTTP examples
+* Don't use async_write_msg in examples
+
+--------------------------------------------------------------------------------
+
+Version 107:
+
+* Use test::stream
+
+WebSocket
+
+* Fix done state for WebSocket reads
+* Fix utf8 check for compressed frames
+* Rename frame and header buffer types
+
+--------------------------------------------------------------------------------
+
+Version 106:
+
+* Dynamic buffer input areas are mutable
+* Add flat_static_buffer::reset
+
+HTTP:
+
+* Fix for basic_parser::skip(true) and docs
+
+WebSocket:
+
+* websocket test improvements
+* Remove obsolete write_op
+* Refactor write_op
+* Refactor ping_op
+* Refactor fail_op
+* Refactor read_op
+* Refactor close_op
+* Refactor read_op + fail_op
+* Websocket close will automatically drain
+* Autobahn|Testsuite fixes
+* Tidy up utf8_checker and tests
+
+--------------------------------------------------------------------------------
+
+Version 105:
+
+* Fix compile error in websocket snippet
+* Tidy up Jamfile and tests
+
+--------------------------------------------------------------------------------
+
+Version 104:
+
+* Remove unused include
+* Use #error in config.hpp
+* Only set -std=c++11 on Travis
+* Only set /permissive- on Appveyor
+* Tidy up some test warnings
+* tools/ renamed from build/
+
+WebSocket:
+
+* Fix pausation::save
+
+--------------------------------------------------------------------------------
+
+Version 103:
+
+* Boost test matrix fixes
+* Tidy up allocator usage
+* Example HTTP server fixes
+
+--------------------------------------------------------------------------------
+
+Version 102:
+
+* Section headings in examples
+
+--------------------------------------------------------------------------------
+
+Version 101:
+
+* Refactor all examples
+
+--------------------------------------------------------------------------------
+
+Version 100:
+
+* Fix doc convenience includes
+* Fix doc includes
+* Remove unused test header
+* Rename test macros
+* Reorder define test macro params
+* vcxproj workaround for include symlinks
+* Add variadic min/max
+
+WebSocket:
+
+* Remove obsolete frame tests
+* Refactor fail/clode code
+* Call do_fail from read_some
+* eof on accept returns error::closed
+* Fix stream::read_size_hint calculation
+* Documentation
+
+API Changes:
+
+* Calls to stream::close and stream::async_close will
+  automatically perform the required read operations
+
+* drain_buffer is removed
+
+* role_type replaces teardown_tag
+
+Actions Required:
+
+* Remove calling code which drains the connection after
+  calling stream::close or stream::async_close
+
+* Replace code which uses drain_buffer. For websocket::stream,
+  it is no longer necessary to manually drain the connection
+  after closing.
+
+* Modify signatures of teardown and async_teardown to use
+  role_type instead of teardown_tag
+
+* Change calls to teardown and async_teardown to pass the
+  correct role_type, client or server, depending on context.
+
+--------------------------------------------------------------------------------
+
+Version 99:
+
+* Log the value of LIB_DIR for doc builds (debug)
+* Use correct handler signature in fail_op
+* Fix doc typo
+
+--------------------------------------------------------------------------------
+
+Version 98:
+
+* basic_fields::key_compare is noexcept
+* Fix bench-zlib cmake
+* Use unique names Jam projects
+* Trim utf8 checker test
+
+--------------------------------------------------------------------------------
+
+Version 97:
+
+* Update redirect
+
+--------------------------------------------------------------------------------
+
+Version 96:
+
+* Move bench/ to test/
+* Move extras/ to test/
+* Use <valgrind> property
+* Rename wsload compile target
+* Fix library.json
+* Update boostorg links
+* Add bench-zlib
+* Faster zlib tests
+* Less compression on websocket test
+
+--------------------------------------------------------------------------------
+
+Version 95:
+
+* Tidy up Travis build scripts
+* Move scripts to build/
+* Fix race in test::pipe
+* close on test::pipe teardown
+* Add test::stream
+* Tidy up static_buffer braced init
+* Fix html redirect
+* Add valgrind variant, fix false positives
+
+--------------------------------------------------------------------------------
+
+Version 94:
+
+* Use off-site Quick Start link temporarily
+
+--------------------------------------------------------------------------------
+
+Version 93:
+
+* Unset BOOST_COROUTINES_NO_DEPRECATION_WARNING
+
+--------------------------------------------------------------------------------
+
+Version 92:
+
+* Fix typo in test/CMakeLists.txt
+* basic_fields::value_type is not copyable
+* Update repository links in source comments
+* Ignore Content-Length in some cases
+* Tidy up doc snippet paths
+* Use off-site doc link
+
+--------------------------------------------------------------------------------
+
+Version 91:
+
+* Adjust redirect html
+* Don't build pre-C++11
+* source.dox is path-independent
+* Tidy up namespace qualifiers
+* Tidy up MSVC CMakeLists.txt
+* Optimize buffered_read_stream
+* constexpr in derived buffers
+* Set BOOST_ASIO_NO_DEPRECATED
+* Use Asio array optimization in static_buffer_base
+* Rename wstest source file
+* Use fopen_s on Windows
+* Fix Appveyor script
+* Update project metadata
+* Move benchmarks to bench/
+* Fix doc title
+* Build stand-alone doc
+* Update doc copyrights
+* Refactor test build scripts
+
+WebSocket:
+
+* Tidy up websocket javadocs
+* Refactor accept, handshake ops
+* Use read buffer instead of buffered stream
+
+API Changes
+
+* control frame callbacks are non-const references
+
+Actions Required:
+
+* Modify calls to set the control frame callback, to
+  pass non-const reference instances, and manage the
+  lifetime of the instance.
+
+--------------------------------------------------------------------------------
+
+Version 90:
+
+* Fix websocket read of zero length message
+* Fix typo in equal_range
+* Output to integrated documentation
+
+--------------------------------------------------------------------------------
+
+Version 89:
+
+* Fix CONTRIBUTING.md links
+
+--------------------------------------------------------------------------------
+
+Version 88:
+
+* Update doc links in README.md
+* Refactor tests Jamfile
+* Don't use program_options
+
+WebSocket:
+
+* Fix uninitialized frame done
+
+--------------------------------------------------------------------------------
+
+Version 87:
+
+* Update appveyor for Boost branch
+* Rename to BEAST_EXPECT
+* variant fixes and tests
+* Update README, add CONTRIBUTING.md and CODE_OF_CONDUCT.md
+
+--------------------------------------------------------------------------------
+
+Version 86:
+
+* Boost prep
+* Remove use of lexical_cast
+* Use custom variant
+* Update README.md
+* Add local-travis.sh
+* Use winapi
+* Update CMakeLists.txt for boost
+* Update documentation for boost
+* Update copyrights
+* Remove spurious declaration
+* Tidy up Jamfile
+* Normalize doc build scripts
+* Use configured doxygen and xsltproc
+* Fix Deferred Body Type Example Documentation
+* Add library metadata
+
+API Changes:
+
+* websocket read returns the number of bytes inserted
+
+Actions Required:
+
+* Change the signature of completion handlers used with
+  websocket::stream::async_read to void(error_code, std::size_t)
+
+--------------------------------------------------------------------------------
+
+Version 85:
+
+* Fix test failure
+* Tidy up test warning
+
+--------------------------------------------------------------------------------
+
+Version 84:
+
+* Tidy up buffer_front
+* static_buffer::consume improvement
+* multi_buffer is type-check friendly
+* bind_handler allows placeholders
+* Add consuming_buffers::get
+
+WebSocket:
+
+* WebSocket read optimization
+
+API Changes:
+
+* websocket::stream::read_buffer_size is removed
+
+Actions Required:
+
+* Remove calls websocket::stream::read_buffer_size
+* Use read_some and write_some instead of read_frame and write_frame
+
+--------------------------------------------------------------------------------
+
+Version 83:
+
+* Add flat_static_buffer::mutable_data
+* Add buffer_front
+* Add wstest compression option
+* Turn some flat_static_buffer_tests on
+* Documentation work
+* read_some, async_read_some return bytes used
+* Fix private timer::clock_type
+
+WebSocket
+
+* Add wstest compression option
+* Fix buffer lifetime in websocket write
+
+API Changes:
+
+* Add static_buffer
+
+Actions Required:
+
+* Callers who depend on static_buffer returning sequences of
+  exactly length one should switch to flat_static_buffer.
+
+--------------------------------------------------------------------------------
+
+Version 82:
+
+* Documentation tidying
+* is_invocable works with move-only types
+* Use std::function and reference wrapper
+* Add session_alloc to example/common
+* Silence spurious warning
+
+HTTP
+
+* Fix extraneous argument in async_write_header
+
+WebSocket
+
+* stream tidying
+* Add rd_close_ to websocket stream state
+* stream uses flat_buffer
+* accept requires a message
+* Add wstest benchmark tool
+
+API Changes:
+
+* Rename to flat_static_buffer and flat_static_buffer_base
+
+Actions Required:
+
+* Rename static_buffer to flat_static_buffer_base
+* Rename static_buffer_n to flat_static_buffer
+
+--------------------------------------------------------------------------------
+
+Version 81:
+
+* Pass string_view by value
+* better is_final on empty_base_optimization
+* Suppress incorrect GCC warning
+* multi_buffer ctor is explicit
+* File is not copy-constructible
+
+API Changes:
+
+* Refactor basic_parser, chunk parsing:
+
+Actions Required:
+
+* Adjust signatures for required members of user-defined
+  subclasses of basic_parser
+
+* Use the new basic_parser chunk callbacks for accessing
+  chunk extensions and chunk bodies.
+
+--------------------------------------------------------------------------------
+
+Version 80:
+
+* Javadoc tidying
+* Add basic_dynamic_body.hpp
+* Shrink buffer_prefix_view
+* Remove unused file_path
+* Add basic_file_body.hpp
+* buffers_ref is Assignable
+
+HTTP
+
+* Shrink chunk header buffer sequence size
+
+API Changes:
+
+* Refactor chunked-encoding serialization
+
+Actions Required:
+
+* Remove references to ChunkDecorators. Use the new chunk-encoding
+  buffer sequences to manually produce a chunked payload body in
+  the case where control over the chunk-extensions and/or trailers
+  is required.
+
+--------------------------------------------------------------------------------
+
+Version 79:
+
+* Remove spurious fallthrough guidance
+
+--------------------------------------------------------------------------------
+
+Version 78:
+
+* Add span
+* Documentation work
+* Use make_unique_noinit
+* Fix warning in zlib
+* Header file tidying
+* Tidy up FieldsReader doc
+* Add Boost.Locale utf8 benchmark comparison
+* Tidy up dstream for existing Boost versions
+* Tidy up file_posix unused variable
+* Fix warning in root ca declaration
+
+HTTP:
+
+* Tidy up basic_string_body
+* Add vector_body
+* span, string, vector bodies are public
+* Fix spurious uninitialized warning
+* fields temp string uses allocator
+
+API Changes:
+
+* Add message::keep_alive()
+* Add message::chunked() and message::content_length()
+* Remove string_view_body
+
+Actions Required:
+
+* Change user defined implementations of Fields and
+  FieldsReader to meet the new requirements.
+
+* Use span_body<char> instead of string_view_body
+
+--------------------------------------------------------------------------------
+
+Version 77:
+
+* file_posix works without large file support
+
+--------------------------------------------------------------------------------
+
+Version 76:
+
+* Always go through write_some
+* Use Boost.Config
+* BodyReader may construct from a non-const message
+* Add serializer::get
+* Add serializer::chunked
+* Serializer members are not const
+* serializing file_body is not const
+* Add file_body_win32
+* Fix parse illegal characters in obs-fold
+* Disable SSE4.2 optimizations
+
+API Changes:
+
+* Rename to serializer::keep_alive
+* BodyReader, BodyWriter use two-phase init
+
+Actions Required:
+
+* Use serializer::keep_alive instead of serializer::close and
+  take the logical NOT of the return value.
+
+* Modify instances of user-defined BodyReader and BodyWriter
+  types to perform two-phase initialization, as per the
+  updated documented type requirements.
+
+--------------------------------------------------------------------------------
+
+Version 75:
+
+* Use file_body for valid requests, string_body otherwise.
+* Construct buffer_prefix_view in-place
+* Shrink serializer buffers using buffers_ref
+* Tidy up BEAST_NO_BIG_VARIANTS
+* Shrink serializer buffers using buffers_ref
+* Add serializer::limit
+* file_body tests
+* Using SSE4.2 intrinsics in basic_parser if available
+
+--------------------------------------------------------------------------------
+
+Version 74:
+
+* Add file_stdio and File concept
+* Add file_win32
+* Add file_body
+* Remove common/file_body.hpp
+* Add file_posix
+* Fix Beast include directories for cmake targets
+* remove redundant flush() from example
+
+--------------------------------------------------------------------------------
+
+Version 73:
+
+* Jamroot tweak
+* Verify certificates in SSL clients
+* Adjust benchmarks
+* Initialize local variable in basic_parser
+* Fixes for gcc-4.8
+
+HTTP:
+
+* basic_parser optimizations
+* Add basic_parser tests
+
+API Changes:
+
+* Refactor header and message constructors
+* serializer::next replaces serializer::get
+
+Actions Required:
+
+* Evaluate each message constructor call site and
+  adjust the constructor argument list as needed.
+
+* Use serializer::next instead of serializer::get at call sites
+
+--------------------------------------------------------------------------------
+
+Version 72:
+
+HTTP:
+
+* Tidy up set payload in http-server-fast
+* Refine Body::size specification
+* Newly constructed responses have a 200 OK result
+* Refactor file_body for best practices
+* Add http-server-threaded example
+* Documentation tidying
+* Various improvements to http_server_fast.cpp
+
+WebSocket:
+
+* Add websocket-server-async example
+
+--------------------------------------------------------------------------------
+
+Version 71:
+
+* Fix extra ; warning
+* Documentation revision
+* Fix spurious on_chunk invocation
+* Call prepare_payload in HTTP example
+* Check trailers in test
+* Fix buffer overflow handling for string_body and mutable_body
+* Concept check in basic_dynamic_body
+* Tidy up http_sync_port error check
+* Tidy up Jamroot /permissive-
+
+WebSockets:
+
+* Fine tune websocket op asserts
+* Refactor websocket composed ops
+* Allow close, ping, and write to happen concurrently
+* Fix race in websocket read op
+* Fix websocket write op
+* Add cmake options for examples and tests
+
+API Changes:
+
+* Return `std::size_t` from `Body::writer::put`
+
+Actions Required:
+
+* Return the number of bytes actually transferred from the
+  input buffers in user defined `Body::writer::put` functions.
+
+--------------------------------------------------------------------------------
+
+Version 70:
+
+* Serialize in one step when possible
+* Add basic_parser header and body limits
+* Add parser::on_header to set a callback
+* Fix BEAST_FALLTHROUGH
+* Fix HEAD response in file_service
+
+API Changes:
+
+* Rename to message::base
+* basic_parser default limits are now 1MB/8MB
+
+Actions Required:
+
+* Change calls to message::header_part() with message::base()
+
+* Call body_limit and/or header_limit as needed to adjust the
+  limits to suitable values if the defaults are insufficient.
+
+--------------------------------------------------------------------------------
+
+Version 69:
+
+* basic_parser optimizations
+* Use BEAST_FALLTHROUGH to silence warnings
+* Add /permissive- to msvc toolchain
+
+--------------------------------------------------------------------------------
+
+Version 68:
+
+* Split common tests to a new project
+* Small speed up in fields comparisons
+* Adjust buffer size in fast server
+* Use string_ref in older Boost versions
+* Optimize field lookups
+* Add const_body, mutable_body to examples
+* Link statically on cmake MSVC
+
+API Changes:
+
+* Change BodyReader, BodyWriter requirements
+* Remove BodyReader::is_deferred
+* http::error::bad_target replaces bad_path
+
+Actions Required:
+
+* Change user defined instances of BodyReader and BodyWriter
+  to meet the new requirements.
+
+* Replace references to http::error::bad_path with http::error::bad_target
+
+--------------------------------------------------------------------------------
+
+Version 67:
+
+* Fix doc example link
+* Add http-server-small example
+* Merge stream_base to stream and tidy
+* Use boost::string_view
+* Rename to http-server-fast
+* Appveyor use Boost 1.64.0
+* Group common example headers
+
+API Changes:
+
+* control_callback replaces ping_callback
+
+Actions Required:
+
+* Change calls to websocket::stream::ping_callback to use
+  websocket::stream::control_callback
+
+* Change user defined ping callbacks to have the new
+  signature and adjust the callback definition appropriately.
+
+--------------------------------------------------------------------------------
+
+Version 66:
+
+* string_param optimizations
+* Add serializer request/response aliases
+* Make consuming_buffers smaller
+* Fix costly potential value-init in parser
+* Fix unused parameter warning
+* Handle bad_alloc in parser
+* Tidy up message piecewise ctors
+* Add header aliases
+* basic_fields optimizations
+* Add http-server example
+* Squelch spurious warning on gcc
+
+--------------------------------------------------------------------------------
+
+Version 65:
+
+* Enable narrowing warning on msvc cmake
+* Fix integer types in deflate_stream::bi_reverse
+* Fix narrowing in static_ostream
+* Fix narrowing in ostream
+* Fix narrowing in inflate_stream
+* Fix narrowing in deflate_stream
+* Fix integer warnings
+* Enable unused variable warning on msvc cmake
+
+--------------------------------------------------------------------------------
+
+Version 64:
+
+* Simplify buffered_read_stream composed op
+* Simplify ssl teardown composed op
+* Simplify websocket write_op
+* Exemplars are compiled code
+* Better User-Agent in examples
+* async_write requires a non-const message
+* Doc tidying
+* Add link_directories to cmake
+
+API Changes:
+
+* Remove make_serializer
+
+Actions Required:
+
+* Replace calls to make_serializer with variable declarations
+
+--------------------------------------------------------------------------------
+
+Version 63:
+
+* Use std::to_string instead of lexical_cast
+* Don't use cached Boost
+* Put num_jobs back up on Travis
+* Only build and run tests in variant=coverage
+* Move benchmarks to a separate project
+* Only run the tests under ubasan
+* Tidy up CMakeLists.txt
+* Tidy up Jamfiles
+* Control running with valgrind explicitly
+
+--------------------------------------------------------------------------------
+
+Version 62:
+
+* Remove libssl-dev from a Travis matrix item
+* Increase detail::static_ostream coverage
+* Add server-framework tests
+* Doc fixes and tidy
+* Tidy up namespaces in examples
+* Clear the error faster
+* Avoid explicit operator bool for error
+* Add http::is_fields trait
+* Squelch harmless not_connected errors
+* Put slow tests back for coverage builds
+
+API Changes:
+
+* parser requires basic_fields
+* Refine FieldsReader concept
+* message::prepare_payload replaces message::prepare
+
+Actions Required:
+
+* Callers using `parser` with Fields types other than basic_fields
+  will need to create their own subclass of basic_parser to work
+  with their custom fields type.
+
+* Implement chunked() and keep_alive() for user defined FieldsReader types.
+
+* Change calls to msg.prepare to msg.prepare_payload. For messages
+  with a user-defined Fields, provide the function prepare_payload_impl
+  in the fields type according to the Fields requirements.
+
+--------------------------------------------------------------------------------
+
+Version 61:
+
+* Remove Spirit dependency
+* Use generic_cateogry for errno
+* Reorganize SSL examples
+* Tidy up some integer conversion warnings
+* Add message::header_part()
+* Tidy up names in error categories
+* Flush the output stream in the example
+* Clean close in Secure WebSocket client
+* Add server-framework SSL HTTP and WebSocket ports
+* Fix shadowing warnings
+* Tidy up http-crawl example
+* Add multi_port to server-framework
+* Tidy up resolver calls
+* Use one job on CI
+* Don't run slow tests on certain targets
+
+API Changes:
+
+* header::version is unsigned
+* status-codes is unsigned
+
+--------------------------------------------------------------------------------
+
+Version 60:
+
+* String comparisons are public interfaces
+* Fix response message type in async websocket accept
+* New server-framework, full featured server example
+
+--------------------------------------------------------------------------------
+
+Version 59:
+
+* Integrated Beast INTERFACE (cmake)
+* Fix base64 alphabet
+* Remove obsolete doc/README.md
+
+API Changes:
+
+* Change Body::size signature (API Change):
+
+Actions Required:
+
+* For any user-defined models of Body, change the function signature
+  to accept `value_type const&` and modify the function definition
+  accordingly.
+
+--------------------------------------------------------------------------------
+
+Version 58:
+
+* Fix unaligned reads in utf8-checker
+* Qualify size_t in message template
+* Reorganize examples
+* Specification for http read
+* Avoid `std::string` in websocket
+* Fix basic_fields insert ordering
+* basic_fields::set optimization
+* basic_parser::put doc
+* Use static string in basic_fields::reader
+* Remove redundant code
+* Fix parsing chunk size with leading zeroes
+* Better message formal parameter names
+
+API Changes:
+
+* `basic_fields::set` renamed from `basic_fields::replace`
+
+Actions Required:
+
+* Rename calls to `basic_fields::replace` to `basic_fields::set`
+
+--------------------------------------------------------------------------------
+
+Version 57:
+
+* Fix message.hpp javadocs
+* Fix warning in basic_parser.cpp
+* Integrate docca for documentation and tidy
+
+--------------------------------------------------------------------------------
+
+Version 56:
+
+* Add provisional IANA header field names
+* Add string_view_body
+* Call on_chunk when the extension is empty
+* HTTP/1.1 is the default version
+* Try harder to find Boost (cmake)
+* Reset error codes
+* More basic_parser tests
+* Add an INTERFACE cmake target
+* Convert buffer in range loops
+
+--------------------------------------------------------------------------------
+
+Version 55:
+
+* Don't allocate memory to handle obs-fold
+* Avoid a parser allocation using non-flat buffer
+* read_size replaces read_size_helper
+
+--------------------------------------------------------------------------------
+
+Version 54:
+
+* static_buffer coverage
+* flat_buffer coverage
+* multi_buffer coverage
+* consuming_buffers members and coverage
+* basic_fields members and coverage
+* Add string_param
+* Retain ownership when reading using a message
+* Fix incorrect use of [[fallthrough]]
+
+API Changes:
+
+* basic_fields refactor
+
+--------------------------------------------------------------------------------
+
+Version 53:
+
+* Fix basic_parser::maybe_flatten
+* Fix read_size_helper usage
+
+--------------------------------------------------------------------------------
+
+Version 52:
+
+* flat_buffer is an AllocatorAwareContainer
+* Add drain_buffer class
+
+API Changes:
+
+* `auto_fragment` is a member of `stream`
+* `binary`, `text` are members of `stream`
+* read_buffer_size is a member of `stream`
+* read_message_max is a member of `stream`
+* `write_buffer_size` is a member of `stream`
+* `ping_callback` is a member of stream
+* Remove `opcode` from `read`, `async_read`
+* `read_frame` returns `bool` fin
+* `opcode` is private
+* finish(error_code&) is a BodyReader requirement
+
+Actions Required:
+
+* Change call sites which use `auto_fragment` with `set_option`
+  to call `stream::auto_fragment` instead.
+
+* Change call sites which use message_type with `set_option`
+  to call `stream::binary` or `stream::text` instead.
+
+* Change call sites which use `read_buffer_size` with `set_option` to
+  call `stream::read_buffer_size` instead.
+
+* Change call sites which use `read_message_max` with `set_option` to
+  call `stream::read_message_max` instead.
+
+* Change call sites which use `write_buffer_size` with `set_option` to
+  call `stream::write_buffer_size` instead.
+
+* Change call sites which use `ping_callback1 with `set_option` to
+  call `stream::ping_callback` instead.
+
+* Remove the `opcode` reference parameter from calls to synchronous
+  and asynchronous read functions, replace the logic with calls to
+  `stream::got_binary` and `stream::got_text` instead.
+
+* Remove the `frame_info` parameter from all read frame call sites
+
+* Check the return value 'fin' for calls to `read_frame`
+
+* Change ReadHandlers passed to `async_read_frame` to have
+  the signature `void(error_code, bool fin)`, use the `bool`
+  to indicate if the frame is the last frame.
+
+* Remove all occurrences of the `opcode` enum at call sites
+
+--------------------------------------------------------------------------------
+
+Version 51
+
+* Fix operator<< for header
+* Tidy up file_body
+* Fix file_body::get() not setting the more flag correctly
+* Use BOOST_FALLTHROUGH
+* Use BOOST_STRINGIZE
+* DynamicBuffer benchmarks
+* Add construct, destroy to handler_alloc
+* Fix infinite loop in basic_parser
+
+API Changes:
+
+* Tune up static_buffer
+* multi_buffer implementation change
+
+Actions Required:
+
+* Call sites passing a number to multi_buffer's constructor
+  will need to be adjusted, see the corresponding commit message.
+
+--------------------------------------------------------------------------------
+
+Version 50
+
+* parser is constructible from other body types
+* Add field enumeration
+* Use allocator more in basic_fields
+* Fix basic_fields allocator awareness
+* Use field in basic_fields and call sites
+* Use field in basic_parser
+* Tidy up basic_fields, header, and field concepts
+* Fields concept work
+* Body documentation work
+* Add missing handler_alloc nested types
+* Fix chunk delimiter parsing
+* Fix test::pipe read_size
+* Fix chunk header parsing
+
+API Changes:
+
+* Remove header_parser
+* Add verb to on_request for parsers
+* Refactor prepare
+* Protect basic_fields special members
+* Remove message connection settings
+* Remove message free functions
+* Remove obsolete serializer allocator
+* http read_some, async_read_some don't return bytes
+
+--------------------------------------------------------------------------------
+
+Version 49
+
+* Use <iosfwd> instead of <ostream>
+
+HTTP:
+
+* Add HEAD request example
+
+API Changes:
+
+* Refactor method and verb
+* Canonicalize string_view parameter types
+* Tidy up empty_body writer error
+* Refactor header status, reason, and target
+
+--------------------------------------------------------------------------------
+
+Version 48
+
+* Make buffer_prefix_view public
+* Remove detail::sync_ostream
+* Tidy up core type traits
+
+API Changes:
+
+* Tidy up chunk decorator
+* Rename to buffer_cat_view
+* Consolidate parsers to parser.hpp
+* Rename to parser
+
+--------------------------------------------------------------------------------
+
+Version 47
+
+* Disable operator<< for buffer_body
+* buffer_size overload for basic_multi_buffer::const_buffers_type
+* Fix undefined behavior in pausation
+* Fix leak in basic_flat_buffer
+
+API Changes:
+
+* Refactor treatment of request-method
+* Refactor treatment of status code and obsolete reason
+* Refactor HTTP serialization and parsing
+
+--------------------------------------------------------------------------------
+
+Version 46
+
+* Add test::pipe
+* Documentation work
+
+API Changes:
+
+* Remove HTTP header aliases
+* Refactor HTTP serialization
+* Refactor type traits
+
+--------------------------------------------------------------------------------
+
+Version 45
+
+* Workaround for boost::asio::basic_streambuf type check
+* Fix message doc image
+* Better test::enable_yield_to
+* Fix header::reason
+* Documentation work
+* buffer_view skips empty buffer sequences
+* Disable reverse_iterator buffer_view test
+
+--------------------------------------------------------------------------------
+
+Version 44
+
+* Use BOOST_THROW_EXCEPTION
+* Tidy up read_size_helper and dynamic buffers
+* Require Boost 1.58.0 or later
+* Tidy up and make get_lowest_layer public
+* Use BOOST_STATIC_ASSERT
+* Fix async return values in docs
+* Fix README websocket example
+* Add buffers_adapter regression test
+* Tidy up is_dynamic_buffer traits test
+* Make buffers_adapter meet requirements
+
+--------------------------------------------------------------------------------
+
+Version 43
+
+* Require Boost 1.64.0
+* Fix strict aliasing warnings in buffers_view
+* Tidy up buffer_prefix overloads and test
+* Add write limit to test::string_ostream
+* Additional constructors for consuming_buffers
+
+--------------------------------------------------------------------------------
+
+Version 42
+
+* Fix javadoc typo
+* Add formal review notes
+* Make buffers_view a public interface
+
+--------------------------------------------------------------------------------
+
+Version 41
+
+* Trim Appveyor matrix rows
+* Concept revision and documentation
+* Remove coveralls integration
+* Tidy up formal parameter names
+
+WebSocket
+
+* Tidy up websocket::close_code enum and constructors
+
+API Changes
+
+* Return http::error::end_of_stream on HTTP read eof
+* Remove placeholders
+* Rename prepare_buffer(s) to buffer_prefix
+* Remove handler helpers, tidy up hook invocations
+
+--------------------------------------------------------------------------------
+
+Version 40
+
+* Add to_static_string
+* Consolidate get_lowest_layer in type_traits.hpp
+* Fix basic_streambuf movable trait
+* Tidy up .travis.yml
+
+--------------------------------------------------------------------------------
+
+Version 39
+
+Beast versions are now identified by a single integer which
+is incremented on each merge. The macro BEAST_VERSION
+identifies the version number, currently at 39. A version
+setting commit will always be at the tip of the master
+and develop branches.
+
+* Use beast::string_view alias
+* Fixed braced-init error with older gcc
+
+HTTP
+
+* Tidy up basic_parser javadocs
+
+WebSocket:
+
+* Add websocket async echo ssl server test:
+* Fix eof error on ssl::stream shutdown
+
+API Changes:
+
+* Refactor http::header contents
+* New ostream() returns dynamic buffer output stream
+* New buffers() replaces to_string()
+* Rename to multi_buffer, basic_multi_buffer
+* Rename to flat_buffer, basic_flat_buffer
+* Rename to static_buffer, static_buffer_n
+* Rename to buffered_read_stream
+* Harmonize concepts and identifiers with net-ts
+* Tidy up HTTP reason_string
+
+--------------------------------------------------------------------------------
+
+1.0.0-b38
+
+* Refactor static_string
+* Refactor base64
+* Use static_string for WebSocket handshakes
+* Simplify get_lowest_layer test
+* Add test_allocator to extras/test
+* More flat_streambuf tests
+* WebSocket doc work
+* Prevent basic_fields operator[] assignment
+
+API Changes:
+
+* Refactor WebSocket error codes
+* Remove websocket::keep_alive option
+
+--------------------------------------------------------------------------------
+
+1.0.0-b37
+
+* CMake hide command lines in .vcxproj Output windows"
+* Rename to detail::is_invocable
+* Rename project to http-bench
+* Fix flat_streambuf
+* Add ub sanitizer blacklist
+* Add -funsigned-char to asan build target
+* Fix narrowing warning in table constants
+
+WebSocket:
+
+* Add is_upgrade() free function
+* Document websocket::stream thread safety
+* Rename to websocket::detail::pausation
+
+API Changes:
+
+* Provide websocket::stream accept() overloads
+* Refactor websocket decorators
+* Move everything in basic_fields.hpp to fields.hpp
+* Rename to http::dynamic_body, consolidate header
+
+--------------------------------------------------------------------------------
+
+1.0.0-b36
+
+* Update README.md
+
+--------------------------------------------------------------------------------
+
+1.0.0-b35
+
+* Add Appveyor build scripts and badge
+* Tidy up MSVC CMake configuration
+* Make close_code a proper enum
+* Add flat_streambuf
+* Rename to BEAST_DOXYGEN
+* Update .gitignore for VS2017
+* Fix README.md CMake instructions
+
+API Changes:
+
+* New HTTP interfaces
+* Remove http::empty_body
+
+--------------------------------------------------------------------------------
+
+1.0.0-b34
+
+* Fix and tidy up CMake build scripts
+
+--------------------------------------------------------------------------------
+
+1.0.0-b33
+
+* Require Visual Studio 2015 Update 3 or later
+
+HTTP
+
+* Use fwrite return value in file_body
+
+WebSocket
+
+* Set internal state correctly when writing frames
+* Add decorator unit test
+* Add write_frames unit test
+
+--------------------------------------------------------------------------------
+
+1.0.0-b32
+
+* Add io_service completion invariants test
+* Update CMake scripts for finding packages
+
+API Changes:
+
+* Remove http Writer suspend and resume feature
+
+--------------------------------------------------------------------------------
+
+1.0.0-b31
+
+* Tidy up build settings
+* Add missing dynabuf_readstream member
+
+WebSocket
+
+* Move the handler, don't copy it
+
+--------------------------------------------------------------------------------
+
+1.0.0-b30
+
+WebSocket
+
+* Fix race in pings during reads
+* Fix race in close frames during reads
+* Fix race when write suspends
+* Allow concurrent websocket async ping and writes
+
+--------------------------------------------------------------------------------
+
+1.0.0-b29
+
+* Fix compilation error in non-template class
+* Document type-pun in buffer_cat
+* Correctly check ostream modifier (/extras)
+
+HTTP
+
+* Fix Body requirements doc
+* Fix illegal HTTP characters accepted as hex zero
+* Fix Writer return value documentation
+
+WebSocket
+
+* Fix race in writes during reads
+* Fix doc link typo
+
+--------------------------------------------------------------------------------
+
+1.0.0-b28
+
+* Split out and rename test stream classes
+* Restyle async result constructions
+* Fix HTTP split parse edge case
+
+--------------------------------------------------------------------------------
+
+1.0.0-b27
+
+* Tidy up tests and docs
+* Add documentation building instructions
+
+API Changes:
+
+* Invoke callback on pings and pongs
+* Move basic_streambuf to streambuf.hpp
+
+--------------------------------------------------------------------------------
+
+1.0.0-b26
+
+* Tidy up warnings and tests
+
+--------------------------------------------------------------------------------
+
+1.0.0-b25
+
+* Fixes for WebSocket echo server
+* Fix 32-bit arm7 warnings
+* Remove unnecessary include
+* WebSocket server examples and test tidying
+* Fix deflate setup bug
+
+API Changes:
+
+* Better handler_ptr
+
+--------------------------------------------------------------------------------
+
+1.0.0-b24
+
+* bjam use clang on MACOSX
+* Simplify Travis package install specification
+* Add optional yield_to arguments
+* Make decorator copyable
+* Add WebSocket permessage-deflate extension support
+
+--------------------------------------------------------------------------------
+
+1.0.0-b23
+
+* Tune websocket echo server for performance
+* Add file and line number to thrown exceptions
+* Better logging in async echo server
+* Add copy special members
+* Fix message constructor and special members
+* Travis CI improvements
+
+--------------------------------------------------------------------------------
+
+1.0.0-b22
+
+* Fix broken Intellisense
+* Implement the Asio deallocation-before-invocation guarantee
+* Add handler helpers
+* Avoid copies in handler_alloc
+* Update README.md example programs
+* Fix websocket stream read documentation
+* Disable Boost.Coroutine deprecation warning
+* Update documentation examples
+
+--------------------------------------------------------------------------------
+
+1.0.0-b21
+
+* Remove extraneous includes
+
+--------------------------------------------------------------------------------
+
+1.0.0-b20
+
+ZLib
+
+* Add ZLib module
+
+API Changes:
+
+* Rename HTTP identifiers
+
+--------------------------------------------------------------------------------
+
+1.0.0-b19
+
+* Boost library min/max guidance
+* Improvements to code coverage
+* Use boost::lexical_cast instead of std::to_string
+* Fix prepare_buffers value_type
+* Fix consuming_buffers value_type
+* Better buffer_cat
+
+HTTP
+
+* Make chunk_encode public
+* Add write, async_write, operator<< for message_headers
+* Add read, async_read for message_headers
+* Fix with_body example
+
+WebSocket
+
+* Optimize utf8 validation
+* Optimize mask operations
+
+API Changes:
+
+* Refactor message and message_headers declarations
+* prepared_buffers is private
+* consume_buffers is removed
+
+--------------------------------------------------------------------------------
+
+1.0.0-b18
+
+* Increase optimization settings for MSVC builds
+
+HTTP
+
+* Check invariants in parse_op:
+* Clean up message docs
+
+WebSocket
+
+* Write buffer option does not change capacity
+* Close connection during async_read on close frame
+* Add pong, async pong to stream
+
+Core
+
+* Meet DynamicBuffer requirements for static_streambuf
+* Fix write_frame masking and auto-fragment handling
+
+Extras
+
+* unit_test::suite fixes:
+  - New overload of fail() specifies file and line
+  - BEAST_EXPECTS only evaluates the reason string on a failure
+* Add zlib module
+
+--------------------------------------------------------------------------------
+
+1.0.0-b17
+
+* Change implicit to default value in example
+* Tidy up some declarations
+* Fix basic_streambuf::capacity
+* Add basic_streambuf::alloc_size
+* Parser callbacks may not throw
+* Fix Reader concept doc typo
+* Add is_Reader trait
+* Tidy up basic_headers for documentation
+* Tidy up documentation
+* Add basic_parser_v1::reset
+* Fix handling of body_what::pause in basic_parser_v1
+* Add headers_parser
+* Engaged invokable is destructible
+* Improve websocket example in README.md
+* Refactor read_size_helper
+
+API Changes:
+
+* Added init() to Reader requirements
+* Reader must be nothrow constructible
+* Reader is now constructed right before reading the body
+  - The message passed on construction is filled in
+* Rework HTTP concepts:
+  - Writer uses write instead of operator()
+  - Refactor traits to use void_t
+  - Remove is_ReadableBody, is_WritableBody
+  - Add has_reader, has_writer, is_Reader, is_Writer
+  - More friendly compile errors on failed concept checks
+* basic_parser_v1 requires all callbacks present
+* on_headers parser callback now returns void
+* on_body_what is a new required parser callback returning body_what
+
+--------------------------------------------------------------------------------
+
+1.0.0-b16
+
+* Make value optional in param-list
+* Frame processing routines are member functions
+* Fix on_headers called twice from basic_parser_v1
+* Constrain parser_v1 constructor
+* Improve first line serialization
+* Add pause option to on_headers interface
+* Refactor base_parser_v1 callback traits:
+* Refine Parser concept
+* Relax ForwardIterator requirements in FieldSequence
+* Fix websocket failure testing
+* Refine Writer concept and fix exemplar in documentation
+
+API Changes:
+
+* Rename mask_buffer_size to write_buffer_size
+* Make auto_fragment a boolean option
+
+The message class hierarchy is refactored (breaking change):
+
+* One message class now models both HTTP/1 and HTTP/2 messages
+* message_v1, request_v1, response_v1 removed
+* New classes basic_request and basic_response model
+  messages without the body.
+
+    Error resolution: Callers should use message, request,
+    and response instead of message_v1, request_v1, and
+    response_v1 respectively.
+
+--------------------------------------------------------------------------------
+
+1.0.0-b15
+
+* rfc7230 section 3.3.2 compliance
+* Add HTTPS example
+* Add Secure WebSocket example
+* Fix message_v1 constructor
+* Tidy up DynamicBuffer requirements
+* Tidy up error types and headers
+* Fix handling empty HTTP headers in parser_v1
+
+--------------------------------------------------------------------------------
+
+1.0.0-b14
+
+* Add missing rebind to handler_alloc
+* Fix error handling in http server examples
+* Fix CMake scripts for MinGW
+* Use BOOST_ASSERT
+* Better WebSocket decorator
+* Update and tidy documentation
+
+--------------------------------------------------------------------------------
+
+1.0.0-b13
+
+* dstream improvements
+* Remove bin and bin64 directories
+* Tidy up .vcxproj file groupings
+
+--------------------------------------------------------------------------------
+
+1.0.0-b12
+
+* Use -p to print suites from unit test main.
+* BEAST_EXPECTS to add a reason string to test failures
+* Fix unit test runner to output all case names
+* Update README for build requirements
+* Rename to CHANGELOG.md
+
+--------------------------------------------------------------------------------
+
+1.0.0-b11
+
+* Set URI in generated WebSocket Upgrade requests
+* Rename echo server class and file names
+* Rename to DynamicBuffer in some code and documentation
+* Fix integer warnings in Windows builds
+* Add 32 and 64 bit Windows build support
+* Update README for build instructions and more
+* Add repository and documentation banners
+
+--------------------------------------------------------------------------------
+
+1.0.0-b10
+
+* Fix compilation warnings
+* Add websocketpp comparison to HTML documentation
+
+--------------------------------------------------------------------------------
+
+1.0.0-b9
+
+* Fix CMakeLists.txt
+
+--------------------------------------------------------------------------------
+
+1.0.0-b8
+
+* Fix include in example code
+* Fix basic_headers rfc2616 Section 4.2 compliance
+
+--------------------------------------------------------------------------------
+
+1.0.0-b7
+
+* Fix prepare by calling init. prepare() can throw depending on the
+  implementation of Writer. Publicly provided beast::http writers never throw.
+* Fixes to example HTTP server
+* Fully qualify ambiguous calls to read and parse
+* Remove deprecated http::stream wrapper
+* Example HTTP server now calculates the MIME-type
+* Fixes and documentation for teardown and use with SSL:
+* Add example code to rfc7230 javadocs
+* Remove extraneous header file <beast/http/status.hpp>
+* Add skip_body parser option
+
+--------------------------------------------------------------------------------
+
+1.0.0-b6
+
+* Use SFINAE on return values
+* Use beast::error_code instead of nested types
+* Tidy up use of GENERATING_DOCS
+* Remove obsolete RFC2616 functions
+* Add message swap members and free functions
+* Add HTTP field value parser containers: ext_list, param_list, token_list
+* Fixes for some corner cases in basic_parser_v1
+* Configurable limits on headers and body sizes in basic_parser_v1
+
+API Changes:
+
+* ci_equal is moved to beast::http namespace, in rfc7230.hpp
+
+* "DynamicBuffer","dynabuf" renamed from "Streambuf", "streambuf". See:
+  http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4478.html#requirements.dynamic_buffers
+
+* basic_parser_v1 adheres to rfc7230 as strictly as possible
+
+--------------------------------------------------------------------------------
diff --git a/src/boost/libs/beast/CMakeLists.txt b/src/boost/libs/beast/CMakeLists.txt
new file mode 100644
index 000000000..92113b1fd
--- /dev/null
+++ b/src/boost/libs/beast/CMakeLists.txt
@@ -0,0 +1,251 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+cmake_minimum_required (VERSION 3.5.1)
+
+if (POLICY CMP0074)
+    cmake_policy (SET CMP0074 NEW)
+endif()
+
+#-------------------------------------------------------------------------------
+
+function (DoGroupSources curdir rootdir folder)
+    file (GLOB children RELATIVE ${PROJECT_SOURCE_DIR}/${curdir} ${PROJECT_SOURCE_DIR}/${curdir}/*)
+    foreach (child ${children})
+        if (IS_DIRECTORY ${PROJECT_SOURCE_DIR}/${curdir}/${child})
+            DoGroupSources (${curdir}/${child} ${rootdir} ${folder})
+        elseif (${child} STREQUAL "CMakeLists.txt")
+            source_group("" FILES ${PROJECT_SOURCE_DIR}/${curdir}/${child})
+        else()
+            string (REGEX REPLACE ^${rootdir} ${folder} groupname ${curdir})
+            string (REPLACE "/" "\\" groupname ${groupname})
+            source_group (${groupname} FILES ${PROJECT_SOURCE_DIR}/${curdir}/${child})
+        endif()
+    endforeach()
+endfunction()
+
+function (GroupSources curdir folder)
+    DoGroupSources (${curdir} ${curdir} ${folder})
+endfunction()
+
+#-------------------------------------------------------------------------------
+#
+# Beast
+#
+#-------------------------------------------------------------------------------
+
+project (Beast VERSION 290)
+
+set_property (GLOBAL PROPERTY USE_FOLDERS ON)
+option (Beast_BUILD_EXAMPLES "Build examples" ON)
+option (Beast_BUILD_TESTS "Build tests" ON)
+
+if (MSVC)
+    set (CMAKE_VERBOSE_MAKEFILE FALSE)
+
+    add_definitions (
+        -D_WIN32_WINNT=0x0601
+        -D_SCL_SECURE_NO_WARNINGS=1
+        -D_CRT_SECURE_NO_WARNINGS=1
+        -D_SILENCE_CXX17_ALLOCATOR_VOID_DEPRECATION_WARNING
+        -D_SILENCE_CXX17_ADAPTOR_TYPEDEFS_DEPRECATION_WARNING
+    )
+
+    add_compile_options(
+        /bigobj       # large object file format
+        /permissive-  # strict C++
+        #/wd4503      # decorated name length exceeded, name was truncated
+        /W4           # enable all warnings
+        /MP           # Multi-processor compilation
+        )
+
+    set (Boost_USE_STATIC_LIBS ON)
+    set (Boost_USE_STATIC_RUNTIME ON)
+
+    set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")
+    set (CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Ob2 /Oi /Ot /GL /MT")
+    set (CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /Oi /Ot /MT")
+
+    set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SAFESEH:NO")
+    set (CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
+
+    # for RelWithDebInfo builds, disable incremental linking
+    # since CMake sets it ON by default for that build type and it
+    # causes warnings
+    #
+    string (REPLACE "/INCREMENTAL" "/INCREMENTAL:NO" replacement_flags
+        ${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO})
+    set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO ${replacement_flags})
+
+else()
+    set (THREADS_PREFER_PTHREAD_FLAG ON)
+    find_package (Threads)
+    link_libraries(Threads::Threads)
+
+
+    set( CMAKE_CXX_FLAGS
+      "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wextra -Wpedantic -Wno-unused-parameter")
+
+    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wrange-loop-analysis")
+    endif ()
+endif()
+
+# Must come before Boost includes, otherwise the
+# IDE sees the wrong file due to boost/ symlinks.
+include_directories (include)
+
+#-------------------------------------------------------------------------------
+#
+# OpenSSL
+#
+#-------------------------------------------------------------------------------
+
+if (APPLE AND NOT DEFINED ENV{OPENSSL_ROOT_DIR})
+  find_program(HOMEBREW brew)
+  if (NOT HOMEBREW STREQUAL "HOMEBREW-NOTFOUND")
+    execute_process(COMMAND brew --prefix openssl
+      OUTPUT_VARIABLE OPENSSL_ROOT_DIR
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+  endif()
+endif()
+
+find_package(OpenSSL)
+if (NOT MSVC)
+    link_libraries(${OPENSSL_LIBRARIES})
+endif()
+
+#-------------------------------------------------------------------------------
+#
+# Boost
+#
+#-------------------------------------------------------------------------------
+
+get_filename_component (BOOST_ROOT ../../ ABSOLUTE)
+
+# VFALCO I want static but "b2 stage" builds a minimal set which excludes static
+add_definitions (-DBOOST_ALL_STATIC_LINK=1)
+
+add_definitions (-DBOOST_ASIO_NO_DEPRECATED=1)
+add_definitions (-DBOOST_ASIO_DISABLE_BOOST_ARRAY=1)
+add_definitions (-DBOOST_ASIO_DISABLE_BOOST_BIND=1)
+add_definitions (-DBOOST_ASIO_DISABLE_BOOST_DATE_TIME=1)
+add_definitions (-DBOOST_ASIO_DISABLE_BOOST_REGEX=1)
+add_definitions (-DBOOST_COROUTINES_NO_DEPRECATION_WARNING=1)
+
+if (MSVC)
+include_directories (${BOOST_ROOT})
+else()
+    set(BOOST_INCLUDEDIR ${BOOST_ROOT})
+    set(BOOST_LIBRARYDIR ${BOOST_ROOT}/stage/lib)
+    find_package(Boost COMPONENTS coroutine filesystem system REQUIRED)
+    link_libraries(Boost::coroutine Boost::filesystem Boost::system)
+endif()
+
+link_directories(${BOOST_ROOT}/stage/lib)
+
+if (MINGW)
+    link_libraries(ws2_32 mswsock)
+endif()
+
+#-------------------------------------------------------------------------------
+
+if ("${VARIANT}" STREQUAL "coverage")
+    if (MSVC)
+    else()
+        set (CMAKE_BUILD_TYPE DEBUG)
+        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.2 --coverage")
+        set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --coverage")
+    endif()
+
+elseif ("${VARIANT}" STREQUAL "ubasan")
+    if (MSVC)
+    else()
+        set (CMAKE_BUILD_TYPE RELWITHDEBINFO)
+        set (CMAKE_CXX_FLAGS
+          "${CMAKE_CXX_FLAGS} -DBOOST_BEAST_NO_SLOW_TESTS=1 -msse4.2 -funsigned-char -fno-omit-frame-pointer -fsanitize=address,undefined -fno-sanitize-recover=address,undefined -fsanitize-blacklist=${PROJECT_SOURCE_DIR}/tools/blacklist.supp")
+        set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address,undefined -fno-sanitize-recover=address,undefined")
+    endif()
+
+elseif ("${VARIANT}" STREQUAL "debug")
+    set (CMAKE_BUILD_TYPE DEBUG)
+
+elseif ("${VARIANT}" STREQUAL "release")
+    set (CMAKE_BUILD_TYPE RELEASE)
+
+endif()
+
+#-------------------------------------------------------------------------------
+#
+# Static Libraries
+#
+#-------------------------------------------------------------------------------
+
+add_definitions (-DBOOST_ASIO_SEPARATE_COMPILATION=1)
+add_definitions (-DBOOST_BEAST_SEPARATE_COMPILATION=1)
+
+GroupSources (test "/")
+
+add_library (
+    lib-asio STATIC
+    test/lib_asio.cpp
+)
+
+set_property(TARGET lib-asio PROPERTY FOLDER "static-libs")
+
+add_library (
+    lib-asio-ssl STATIC
+    test/lib_asio_ssl.cpp
+)
+
+set_property(TARGET lib-asio-ssl PROPERTY FOLDER "static-libs")
+
+add_library (
+    lib-beast STATIC
+    test/lib_beast.cpp
+)
+
+set_property(TARGET lib-beast PROPERTY FOLDER "static-libs")
+
+target_link_libraries(lib-beast lib-asio)
+
+#-------------------------------------------------------------------------------
+#
+# Tests and examples
+#
+
+include_directories (.)
+
+if (OPENSSL_FOUND)
+    include_directories (${OPENSSL_INCLUDE_DIR})
+endif()
+
+file (GLOB_RECURSE BOOST_BEAST_FILES
+    ${PROJECT_SOURCE_DIR}/include/boost/beast/*.hpp
+    ${PROJECT_SOURCE_DIR}/include/boost/beast/*.ipp
+)
+
+file (GLOB_RECURSE BOOST_BEAST_EXPERIMENTAL_FILES
+    ${PROJECT_SOURCE_DIR}/include/boost/beast/_experimental/*.hpp
+    ${PROJECT_SOURCE_DIR}/include/boost/beast/_experimental/*.ipp
+)
+
+file (GLOB_RECURSE COMMON_FILES
+    ${PROJECT_SOURCE_DIR}/example/common/*.hpp
+  )
+
+if (Beast_BUILD_EXAMPLES AND
+    (NOT "${VARIANT}" STREQUAL "coverage") AND
+    (NOT "${VARIANT}" STREQUAL "ubasan"))
+    add_subdirectory (example)
+endif()
+
+if (Beast_BUILD_TESTS)
+    add_subdirectory (test)
+endif()
diff --git a/src/boost/libs/beast/CONTRIBUTING.md b/src/boost/libs/beast/CONTRIBUTING.md
new file mode 100644
index 000000000..de3f11cf1
--- /dev/null
+++ b/src/boost/libs/beast/CONTRIBUTING.md
@@ -0,0 +1,65 @@
+# Contributing to Beast
+
+Thank you for taking the time to read this document!
+
+:heart_eyes: **please star the Boost.Beast repository!** :heart_eyes:
+
+First make sure you're on the
+[official repository page](https://github.com/boostorg/beast/blob/master/CONTRIBUTING.md),
+then just press the button labeled "star" in the top right of the page
+to give Beast a star! Your stars create generate additional visibility,
+which leads to more users, more bug reports, more fixes, more testing,
+more features, and a better product!
+
+<a href="https://github.com/boostorg/beast/blob/master/CONTRIBUTING.md">
+<img width="400" height = "150" alt = "Please Star the Repository"
+    src="https://raw.githubusercontent.com/vinniefalco/BeastAssets/master/StarTheRepo.png">
+</a>
+
+Click the image above to make sure you're on the official
+Boost repository page so you can give Beast a star!
+
+# Ways to Contribute
+
+No contribution to Beast is too big or too small! We are
+always happy to see user participation in all of its forms.
+Here are some of the ways that you can contribute (this is
+by no means an exhaustive list):
+
+* Submit a
+  [bug report](https://github.com/boostorg/beast/issues).
+  We love hearing about broken things, so
+  that we can fix them. Any problem is fair game, this includes
+  the documentation examples, tests, and repository as well as the
+  library itself. Bug reports should be opened on the
+  [Issues](https://github.com/boostorg/beast/issues) page.
+
+* Provide
+  [feedback](https://github.com/boostorg/beast/issues).
+  about the library. If you have used, are using,
+  or are thinking about using the library we want to hear about it!
+  The more information you provide, the better we will be able
+  to ensure that Beast meets your needs. You can provide feedback
+  as an issue, or email the author directly.
+
+* Test Beast. When changes are made, they are submitted as a
+  [Pull Request](https://github.com/boostorg/beast/pulls).
+  Everyone is welcome to examine these upcoming changes, test them,
+  and report on the results. This form of quality assurance is very
+  helpful so we can keep delivering a great product. Consider
+  subscribing to repository notifications to get alerted to new
+  pull requests.
+
+* Code Review on
+  [Pull Requests](https://github.com/boostorg/beast/pulls).
+  This is one of the most valuable ways to contribute, because it helps
+  to improve code and features, and helps to find bugs, before the code
+  gets merged. A little bit of time investment from just a few people on
+  each pull request goes a **long** way to increasing the quality of the
+  final product. For tips on how to participate in pull requests please
+  view the
+  [README.md](https://github.com/boostorg/beast#contributing-we-need-your-help).
+
+* Use Beast in your next application! At the end of the day, it is the
+  goal of the library to provide utility to users so the best way you
+  can contribute is simply to use the library!
diff --git a/src/boost/libs/beast/Jamfile b/src/boost/libs/beast/Jamfile
new file mode 100644
index 000000000..3bf7a422b
--- /dev/null
+++ b/src/boost/libs/beast/Jamfile
@@ -0,0 +1,131 @@
+#
+# Copyright (c) 2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+import os ;
+import feature ;
+import boost ;
+import modules ;
+import testing ;
+import ../config/checks/config : requires ;
+
+boost.use-project ;
+
+lib socket ; # SOLARIS, QNXNTO
+lib nsl ; # SOLARIS
+lib ws2_32 ; # NT
+lib mswsock ; # NT
+lib ipv6 ; # HPUX
+lib network ; # HAIKU
+
+lib ssl ;
+lib crypto ;
+lib crypt32 ;
+
+lib ssl : : <target-os>windows <name>ssleay32 ;
+lib crypto : : <target-os>windows <name>libeay32 ;
+
+feature.feature boost.beast.allow-deprecated : on off : propagated composite ;
+feature.compose <boost.beast.allow-deprecated>on : <define>BOOST_BEAST_ALLOW_DEPRECATED ;
+
+feature.feature boost.beast.separate-compilation : on off : propagated composite ;
+feature.compose <boost.beast.separate-compilation>on : <define>BOOST_BEAST_SEPARATE_COMPILATION ;
+
+variant beast_coverage
+  : debug
+  : <cxxflags>"-msse4.2 --coverage"
+    <linkflags>"--coverage"
+  ;
+
+variant beast_valgrind
+  : release
+  : <valgrind>on # Boost.Context uses this property
+  ;
+
+variant beast_ubasan
+  : release
+  : <cxxflags>"-msse4.2 -funsigned-char -fno-omit-frame-pointer -fsanitize=address,undefined -fno-sanitize-recover=address,undefined -fsanitize-blacklist=libs/beast/tools/blacklist.supp"
+    <linkflags>"-fsanitize=address,undefined"
+    <define>BOOST_USE_ASAN=1
+  ;
+
+path-constant TEST_MAIN : include/boost/beast/_experimental/unit_test/main.cpp ;
+
+project /boost/beast ;
+
+local defines =
+    [ requires
+    cxx11_constexpr
+    cxx11_decltype
+    cxx11_hdr_tuple
+    cxx11_template_aliases
+    cxx11_variadic_templates
+    ]
+    <implicit-dependency>/boost//headers
+    <include>.
+    <define>BOOST_ALL_NO_LIB=1
+    <define>BOOST_ASIO_SEPARATE_COMPILATION
+    <define>BOOST_ASIO_NO_DEPRECATED=1
+    <define>BOOST_ASIO_DISABLE_BOOST_ARRAY=1
+    <define>BOOST_ASIO_DISABLE_BOOST_BIND=1
+    <define>BOOST_ASIO_DISABLE_BOOST_DATE_TIME=1
+    <define>BOOST_ASIO_DISABLE_BOOST_REGEX=1
+    <define>BOOST_COROUTINES_NO_DEPRECATION_WARNING=1
+    <toolset>msvc:<cxxflags>"/bigobj"
+    <toolset>msvc-14.1:<cxxflags>"/permissive-"
+    <toolset>msvc-14.2:<cxxflags>"/permissive-"
+    <toolset>msvc:<define>_SCL_SECURE_NO_WARNINGS=1
+    <toolset>msvc:<define>_CRT_SECURE_NO_WARNINGS=1
+    <toolset>msvc:<define>_SILENCE_CXX17_ALLOCATOR_VOID_DEPRECATION_WARNING
+    <toolset>msvc:<define>_SILENCE_CXX17_ADAPTOR_TYPEDEFS_DEPRECATION_WARNING
+    <toolset>msvc,<variant>release:<cxxflags>"/Ob2 /Oi /Ot"
+    <target-os>linux:<define>_XOPEN_SOURCE=600
+    <target-os>linux:<define>_GNU_SOURCE=1
+    <target-os>solaris:<define>_XOPEN_SOURCE=500
+    <target-os>solaris:<define>__EXTENSIONS__
+    <target-os>solaris:<library>socket
+    <target-os>solaris:<library>nsl
+    <target-os>windows:<define>_WIN32_WINNT=0x0601
+    <target-os>windows,<toolset>gcc:<library>ws2_32
+    <target-os>windows,<toolset>gcc:<library>mswsock
+    <target-os>windows,<toolset>gcc-cygwin:<define>__USE_W32_SOCKETS
+    <target-os>hpux,<toolset>gcc:<define>_XOPEN_SOURCE_EXTENDED
+    <target-os>hpux:<library>ipv6
+    <target-os>qnxnto:<library>socket
+    <target-os>haiku:<library>network
+    ;
+
+lib lib-asio
+    : test/lib_asio.cpp
+    : requirements
+        <link>static
+        $(defines)
+    : usage-requirements
+        $(defines)
+    ;
+
+lib lib-asio-ssl
+    : test/lib_asio_ssl.cpp
+    : requirements
+        <link>static
+        $(defines)
+        [ ac.check-library /boost/beast//ssl : <library>/boost/beast//ssl/<link>shared : <build>no ]
+        [ ac.check-library /boost/beast//crypto : <library>/boost/beast//crypto/<link>shared : <build>no ]
+    : usage-requirements
+        $(defines)
+    ;
+
+lib lib-beast
+    : test/lib_beast.cpp
+    : requirements
+    <link>static
+    $(defines)
+    : usage-requirements
+    $(defines)
+    ;
diff --git a/src/boost/libs/beast/LICENSE_1_0.txt b/src/boost/libs/beast/LICENSE_1_0.txt
new file mode 100644
index 000000000..36b7cd93c
--- /dev/null
+++ b/src/boost/libs/beast/LICENSE_1_0.txt
@@ -0,0 +1,23 @@
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/src/boost/libs/beast/README.md b/src/boost/libs/beast/README.md
new file mode 100644
index 000000000..cf114e789
--- /dev/null
+++ b/src/boost/libs/beast/README.md
@@ -0,0 +1,277 @@
+<img width="880" height = "80" alt = "Boost.Beast Title"
+    src="https://raw.githubusercontent.com/boostorg/beast/master/doc/images/readme2.png">
+
+# HTTP and WebSocket built on Boost.Asio in C++11
+
+Branch      | Linux/OSX | Windows | Coverage | Documentation | Matrix
+------------|-----------|---------|----------|---------------|--------
+[master](https://github.com/boostorg/beast/tree/master)   | [![Build Status](https://travis-ci.org/boostorg/beast.svg?branch=master)](https://travis-ci.org/boostorg/beast)  | [![Build status](https://ci.appveyor.com/api/projects/status/2nh66khjjhtgasvo/branch/master?svg=true)](https://ci.appveyor.com/project/vinniefalco/beast/branch/master)   | [![codecov](https://img.shields.io/codecov/c/github/boostorg/beast/master.svg)](https://codecov.io/gh/boostorg/beast/branch/master)   | [![Documentation](https://img.shields.io/badge/documentation-master-brightgreen.svg)](http://www.boost.org/doc/libs/master/libs/beast/doc/html/index.html)  | [![Matrix](https://img.shields.io/badge/matrix-master-brightgreen.svg)](http://www.boost.org/development/tests/master/developer/beast.html)
+[develop](https://github.com/boostorg/beast/tree/develop) | [![Build Status](https://travis-ci.org/boostorg/beast.svg?branch=develop)](https://travis-ci.org/boostorg/beast) | [![Build status](https://ci.appveyor.com/api/projects/status/2nh66khjjhtgasvo/branch/develop?svg=true)](https://ci.appveyor.com/project/vinniefalco/beast/branch/develop) | [![codecov](https://img.shields.io/codecov/c/github/boostorg/beast/develop.svg)](https://codecov.io/gh/boostorg/beast/branch/develop) | [![Documentation](https://img.shields.io/badge/documentation-develop-brightgreen.svg)](https://www.boost.org/doc/libs/develop/libs/beast/index.html) | [![Matrix](https://img.shields.io/badge/matrix-develop-brightgreen.svg)](https://www.boost.org/development/tests/develop/developer/beast.html)
+
+## Contents
+
+- [Introduction](#introduction)
+- [Appearances](#appearances)
+- [Description](#description)
+- [Requirements](#requirements)
+- [Git Branches](#branches)
+- [Building](#building)
+- [Usage](#usage)
+- [License](#license)
+- [Contact](#contact)
+- [Contributing](#contributing-we-need-your-help)
+
+## Introduction
+
+Beast is a C++ header-only library serving as a foundation for writing
+interoperable networking libraries by providing **low-level HTTP/1,
+WebSocket, and networking protocol** vocabulary types and algorithms
+using the consistent asynchronous model of Boost.Asio.
+
+This library is designed for:
+
+* **Symmetry:** Algorithms are role-agnostic; build clients, servers, or both.
+
+* **Ease of Use:** Boost.Asio users will immediately understand Beast.
+
+* **Flexibility:** Users make the important decisions such as buffer or
+  thread management.
+
+* **Performance:** Build applications handling thousands of connections or more.
+
+* **Basis for Further Abstraction.** Components are well-suited for building upon.
+
+## Appearances
+
+| <a href="https://github.com/vinniefalco/CppCon2018">CppCon 2018</a> | <a href="https://www.bishopfox.com/case_study/securing-beast/">Bishop Fox 2018</a> |
+| ------------ | ------------ |
+| <a href="https://www.youtube.com/watch?v=7FQwAjELMek"><img width="320" height = "180" alt="Beast" src="https://raw.githubusercontent.com/vinniefalco/CppCon2018/master/CppCon2018.png"></a> | <a href="https://youtu.be/4TtyYbGDAj0"><img width="320" height = "180" alt="Beast Security Review" src="https://raw.githubusercontent.com/vinniefalco/BeastAssets/master/BishopFox2018.png"></a> |
+
+| <a href="https://github.com/vinniefalco/CppCon2018">CppCon 2017</a> | <a href="http://cppcast.com/2017/01/vinnie-falco/">CppCast 2017</a> | <a href="https://raw.githubusercontent.com/vinniefalco/BeastAssets/master/CppCon2016.pdf">CppCon 2016</a> |
+| ------------ | ------------ | ----------- |
+| <a href="https://www.youtube.com/watch?v=WsUnnYEKPnI"><img width="320" height = "180" alt="Beast" src="https://raw.githubusercontent.com/vinniefalco/CppCon2017/master/CppCon2017.png"></a> | <a href="http://cppcast.com/2017/01/vinnie-falco/"><img width="180" height="180" alt="Vinnie Falco" src="https://avatars1.githubusercontent.com/u/1503976?v=3&u=76c56d989ef4c09625256662eca2775df78a16ad&s=180"></a> | <a href="https://www.youtube.com/watch?v=uJZgRcvPFwI"><img width="320" height = "180" alt="Beast" src="https://raw.githubusercontent.com/vinniefalco/BeastAssets/master/CppCon2016.png"></a> |
+
+## Description
+
+This software is in its first official release. Interfaces
+may change in response to user feedback. For recent changes
+see the [CHANGELOG](CHANGELOG.md).
+
+* [Official Site](https://github.com/boostorg/beast)
+* [Documentation](https://www.boost.org/doc/libs/master/libs/beast/) (master branch)
+* [Autobahn|Testsuite WebSocket Results](https://vinniefalco.github.io/boost/beast/reports/autobahn/index.html)
+
+## Requirements
+
+This library is for programmers familiar with Boost.Asio. Users
+who wish to use asynchronous interfaces should already know how to
+create concurrent network programs using callbacks or coroutines.
+
+* **C++11:** Robust support for most language features.
+* **Boost:** Boost.Asio and some other parts of Boost.
+* **OpenSSL:** Required for using TLS/Secure sockets and examples/tests
+
+When using Microsoft Visual C++, Visual Studio 2017 or later is required.
+
+One of these components is required in order to build the tests and examples:
+
+* Properly configured bjam/b2
+* CMake 3.5.1 or later (Windows only)
+
+## Building
+
+Beast is header-only. To use it just add the necessary `#include` line
+to your source files, like this:
+```C++
+#include <boost/beast.hpp>
+```
+
+If you use coroutines you'll need to link with the Boost.Coroutine
+library. Please visit the Boost documentation for instructions
+on how to do this for your particular build system.
+
+## GitHub
+
+To use the latest official release of Beast, simply obtain the latest
+Boost distribution and follow the instructions for integrating it
+into your development environment. If you wish to build the examples
+and tests, or if you wish to preview upcoming changes and features,
+it is suggested to clone the "Boost superproject" and work with Beast
+"in-tree" (meaning, the libs/beast subdirectory of the superproject).
+
+The official repository contains the following branches:
+
+* [**master**](https://github.com/boostorg/beast/tree/master) This
+  holds the most recent snapshot with code that is known to be stable.
+
+* [**develop**](https://github.com/boostorg/beast/tree/develop) This
+  holds the most recent snapshot. It may contain unstable code.
+
+Each of these branches requires a corresponding Boost branch and
+all of its subprojects. For example, if you wish to use the **master**
+branch version of Beast, you should clone the Boost superproject,
+switch to the **master** branch in the superproject and acquire
+all the Boost libraries corresponding to that branch including Beast.
+
+To clone the superproject locally, and switch into the main project's
+directory use:
+```
+git clone --recursive https://github.com/boostorg/boost.git
+cd boost
+```
+
+"bjam" is used to build Beast and the Boost libraries. On a non-Windows
+system use this command to build bjam:
+```
+./bootstrap.sh
+```
+
+From a Windows command line, build bjam using this command:
+```
+.\BOOTSTRAP.BAT
+```
+
+## Building tests and examples
+Building tests and examples requires OpenSSL installed. If OpenSSL is installed
+in a non-system location, you will need to copy the
+[user-config.jam](tools/user-config.jam) file into your home directory and set
+the `OPENSSL_ROOT` environment variable to the path that contains an installation
+of OpenSSL.
+
+### Ubuntu/Debian
+If installed into a system directory, OpenSSL will be automatically found and used.
+```bash
+sudo apt install libssl-dev
+```
+### Windows
+Replace `path` in the following code snippets with the path you installed vcpkg
+to. Examples assume a 32-bit build, if you build a 64-bit version replace
+`x32-windows` with `x64-windows` in the path.
+- Using [vcpkg](https://github.com/Microsoft/vcpkg) and CMD:
+```bat
+vcpkg install openssl --triplet x32-windows
+SET OPENSSL_ROOT=path\installed\x32-windows
+```
+
+- Using [vcpkg](https://github.com/Microsoft/vcpkg) and PowerShell:
+```powershell
+vcpkg install openssl --triplet x32-windows
+$env:OPENSSL_ROOT = "path\x32-windows"
+```
+
+- Using [vcpkg](https://github.com/Microsoft/vcpkg) and bash:
+```bash
+vcpkg.exe install openssl --triplet x32-windows
+export OPENSSL_ROOT=path/x32-windows
+```
+
+### Mac OS
+Using [brew](https://github.com/Homebrew/brew):
+```bash
+brew install openssl
+export OPENSSL_ROOT=$(brew --prefix openssl)
+# install bjam tool user specific configuration file to read OPENSSL_ROOT
+# see https://boostorg.github.io/build/manual/develop/index.html
+cp ./libs/beast/tools/user-config.jam $HOME
+```
+
+Make sure the bjam tool (also called "b2") is available in the path
+your shell uses to find executables. The Beast project is located in
+"libs/beast" relative to the directory containing the Boot superproject.
+To build the Beast tests, examples, and documentation use these commands:
+```
+export PATH=$PWD:$PATH
+b2 -j2 libs/beast/test cxxstd=11      # bjam must be in your $PATH
+b2 -j2 libs/beast/example cxxstd=11   # "-j2" means use two processors
+b2 libs/beast/doc                     # Doxygen and Saxon are required for this
+```
+
+
+
+Additional instructions for configuring, using, and building libraries
+in superproject may be found in the
+[Boost Wiki](https://github.com/boostorg/boost/wiki/Getting-Started).
+
+## Visual Studio
+
+CMake may be used to generate a very nice Visual Studio solution and
+a set of Visual Studio project files using these commands:
+
+```
+cd libs/beast
+mkdir bin
+cd bin
+cmake ..                                    # for 32-bit Windows builds, or
+cmake -G"Visual Studio 15 2017 Win64" ..    # for 64-bit Windows builds (VS2017)
+```
+
+The files in the repository are laid out thusly:
+
+```
+./
+    bin/            Create this to hold executables and project files
+    bin64/          Create this to hold 64-bit Windows executables and project files
+    doc/            Source code and scripts for the documentation
+    include/        Where the header files are located
+    example/        Self contained example programs
+    meta/           Metadata for Boost integration
+    test/           The unit tests for Beast
+    tools/          Scripts used for CI testing
+```
+
+## Usage
+
+These examples are complete, self-contained programs that you can build
+and run yourself (they are in the `example` directory).
+
+https://www.boost.org/doc/libs/develop/libs/beast/doc/html/beast/quick_start.html
+
+## License
+
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file [LICENSE_1_0.txt](LICENSE_1_0.txt) or copy at
+https://www.boost.org/LICENSE_1_0.txt)
+
+## Contact
+
+Please report issues or questions here:
+https://github.com/boostorg/beast/issues
+
+---
+
+## Contributing (We Need Your Help!)
+
+If you would like to contribute to Beast and help us maintain high
+quality, consider performing code reviews on active pull requests.
+Any feedback from users and stakeholders, even simple questions about
+how things work or why they were done a certain way, carries value
+and can be used to improve the library. Code review provides these
+benefits:
+
+* Identify bugs
+* Documentation proof-reading
+* Adjust interfaces to suit use-cases
+* Simplify code
+
+You can look through the Closed pull requests to get an idea of how
+reviews are performed. To give a code review just sign in with your
+GitHub account and then add comments to any open pull requests below,
+don't be shy!
+<p>https://github.com/boostorg/beast/pulls</p>
+
+Here are some resources to learn more about
+code reviews:
+
+* <a href="https://blog.scottnonnenberg.com/top-ten-pull-request-review-mistakes/">Top 10 Pull Request Review Mistakes</a>
+* <a href="https://static1.smartbear.co/smartbear/media/pdfs/best-kept-secrets-of-peer-code-review_redirected.pdf">Best Kept Secrets of Peer Code Review (pdf)</a>
+* <a href="https://static1.smartbear.co/support/media/resources/cc/11_best_practices_for_peer_code_review_redirected.pdf">11 Best Practices for Peer Code Review (pdf)</a>
+* <a href="http://www.evoketechnologies.com/blog/code-review-checklist-perform-effective-code-reviews/">Code Review Checklist – To Perform Effective Code Reviews</a>
+* <a href="https://www.codeproject.com/Articles/524235/Codeplusreviewplusguidelines">Code review guidelines</a>
+* <a href="https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md">C++ Core Guidelines</a>
+* <a href="https://www.oreilly.com/library/view/c-coding-standards/0321113586/">C++ Coding Standards (Sutter & Andrescu)</a>
+
+Beast thrives on code reviews and any sort of feedback from users and
+stakeholders about its interfaces. Even if you just have questions,
+asking them in the code review or in issues provides valuable information
+that can be used to improve the library - do not hesitate, no question
+is insignificant or unimportant!
diff --git a/src/boost/libs/beast/azure-pipelines.yml b/src/boost/libs/beast/azure-pipelines.yml
new file mode 100644
index 000000000..948158dfd
--- /dev/null
+++ b/src/boost/libs/beast/azure-pipelines.yml
@@ -0,0 +1,359 @@
+variables:
+  GIT_BRANCH: $(Build.SourceBranch)
+
+jobs:
+  - job: 'LinuxCoverage'
+    pool:
+      vmImage: 'ubuntu-16.04'
+    container:
+      image: djarek/boost-beast-ci:latest
+      options: --privileged
+    steps:
+      - bash: |
+            sudo apt update && sudo apt install -y g++ lcov
+        displayName: Get dependencies
+      - bash: |
+            set -e
+            export BUILD_DIR=$(pwd)
+            cd ..
+            $BUILD_DIR/tools/get-boost.sh $GIT_BRANCH $BUILD_DIR
+            cd boost-root
+            export CXX=g++ CC=gcc
+            ./bootstrap.sh || cat bootstrap.log
+        displayName: Get Boost
+      - bash: |
+            set -e
+            cd ../boost-root
+            ./b2 libs/beast/test//run-fat-tests toolset=gcc coverage=on link=static cxxstd=11 -j2
+            libs/beast/tools/coverage.sh
+        env:
+            CODECOV_TOKEN: $(CODECOV_TOKEN)
+        displayName: Build & Run tests
+  - job: 'Linux'
+    pool:
+      vmImage: 'ubuntu-16.04'
+    container:
+      image: djarek/boost-beast-ci:latest
+      options: --privileged
+    strategy:
+      matrix:
+        GCC 9 C++17 Release:
+          TOOLSET: gcc
+          CXX: g++-9
+          PACKAGES: g++-9
+          VARIANT: release
+          B2_FLAGS: <define>BOOST_BEAST_USE_STD_STRING_VIEW
+          CXXSTD: 17
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        GCC 9 C++11 HEADER_ONLY NO_DEPRECATED:
+          TOOLSET: gcc
+          CXX: g++-9
+          PACKAGES: g++-9
+          VARIANT: release
+          B2_FLAGS: <boost.beast.separate-compilation>off <boost.beast.allow-deprecated>off
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 9 C++11 NO_DEPRECATED NO_TLS:
+          TOOLSET: gcc
+          CXX: g++-9
+          PACKAGES: g++-9
+          VARIANT: release
+          B2_FLAGS: <boost.beast.allow-deprecated>off <define>BOOST_NO_CXX11_THREAD_LOCAL
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 9 C++11 UBASAN:
+          TOOLSET: gcc
+          CXX: g++-9
+          PACKAGES: g++-9
+          VARIANT: debug
+          B2_FLAGS: <address-sanitizer>norecover <undefined-sanitizer>norecover
+          # use GOLD to workaround UBSAN linker issue in gcc 7/8
+          # https://stackoverflow.com/questions/50024731/ld-unrecognized-option-push-state-no-as-needed
+          CXX_FLAGS: <cxxflags>"-msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-fuse-ld=gold
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 9 C++11 TSAN:
+          TOOLSET: gcc
+          CXX: g++-9
+          PACKAGES: g++-9
+          VARIANT: release
+          B2_FLAGS: <thread-sanitizer>norecover
+          CXX_FLAGS: <cxxflags>"-msse4.2 -funsigned-char -fno-omit-frame-pointer"
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 8 C++17 Release:
+          TOOLSET: gcc
+          CXX: g++-8
+          PACKAGES: g++-8
+          VARIANT: release
+          B2_FLAGS: <define>BOOST_BEAST_USE_STD_STRING_VIEW
+          CXXSTD: 17
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        GCC 8 C++11 HEADER_ONLY NO_DEPRECATED:
+          TOOLSET: gcc
+          CXX: g++-8
+          PACKAGES: g++-8
+          VARIANT: release
+          B2_FLAGS: <boost.beast.separate-compilation>off <boost.beast.allow-deprecated>off
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 8 C++11 UBASAN:
+          TOOLSET: gcc
+          CXX: g++-8
+          PACKAGES: g++-8
+          VARIANT: debug
+          B2_FLAGS: <address-sanitizer>norecover <undefined-sanitizer>norecover
+          # use GOLD to workaround UBSAN linker issue in gcc 7/8
+          # https://stackoverflow.com/questions/50024731/ld-unrecognized-option-push-state-no-as-needed
+          CXX_FLAGS: <cxxflags>"-msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-fuse-ld=gold
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 8 C++11 TSAN:
+          TOOLSET: gcc
+          CXX: g++-8
+          PACKAGES: g++-8
+          VARIANT: release
+          B2_FLAGS: <thread-sanitizer>norecover
+          CXX_FLAGS: <cxxflags>"-msse4.2 -funsigned-char -fno-omit-frame-pointer"
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC 7 C++14 Valgrind:
+          TOOLSET: gcc
+          CXX: g++-7
+          PACKAGES: g++-7 valgrind
+          VARIANT: release
+          B2_FLAGS: <define>BOOST_BEAST_TEST_STATIC_PRNG_SEED <valgrind>on <testing.launcher>"valgrind --track-origins=yes --error-exitcode=1 --max-stackframe=16000000 --suppressions=libs/beast/tools/valgrind.supp"
+          CXXSTD: 14
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        GCC Default C++11 Release:
+          TOOLSET: gcc
+          CXX: g++
+          PACKAGES: g++
+          VARIANT: release
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        Clang 6.0 C++11 Debug:
+          TOOLSET: clang
+          CXX: clang++-6.0
+          PACKAGES: clang-6.0
+          VARIANT: debug
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        Clang 7 libc++ C++14 Valgrind:
+          TOOLSET: clang
+          CXX: clang++-7
+          PACKAGES: clang-7 libc++-7-dev libc++abi-7-dev valgrind
+          VARIANT: release
+          B2_FLAGS: <valgrind>on <testing.launcher>"valgrind --track-origins=yes --error-exitcode=1 --max-stackframe=16000000 --suppressions=libs/beast/tools/valgrind.supp"
+          CXXSTD: 14
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++" <linkflags>"-stdlib=libc++"
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        Clang 7 C++11 Debug:
+          TOOLSET: clang
+          CXX: clang++-7
+          PACKAGES: clang-7
+          VARIANT: debug
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        Clang 7 C++14 Release:
+          TOOLSET: clang
+          CXX: clang++-7
+          PACKAGES: clang-7
+          VARIANT: release
+          CXXSTD: 14
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        Clang Default C++11 Debug:
+          TOOLSET: clang
+          CXX: clang++
+          PACKAGES: clang
+          VARIANT: debug
+          CXXSTD: 11
+          B2_TARGETS: libs/beast/test//run-fat-tests libs/beast/example
+        Clang 8 libc++ C++14 UBASAN:
+          TOOLSET: clang
+          CXX: clang++-8
+          PACKAGES: clang-8 libc++-8-dev libc++abi-8-dev
+          VARIANT: release
+          B2_FLAGS: <address-sanitizer>norecover <undefined-sanitizer>norecover
+          UBSAN_OPTIONS: print_stacktrace=1
+          CXXSTD: 14
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++ -msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-stdlib=libc++
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        Clang 8 libc++ C++14 TSAN:
+          TOOLSET: clang
+          CXX: clang++-8
+          PACKAGES: clang-8 libc++-8-dev libc++abi-8-dev
+          VARIANT: release
+          B2_FLAGS: <thread-sanitizer>norecover
+          CXXSTD: 14
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++ -msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-stdlib=libc++
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        Clang 9 libc++ C++14 Release HEADER_ONLY NO_DEPRECATED:
+          TOOLSET: clang
+          CXX: clang++-9
+          PACKAGES: clang-9 libc++-9-dev libc++abi-9-dev
+          VARIANT: release
+          B2_FLAGS: <boost.beast.separate-compilation>off <boost.beast.allow-deprecated>off
+          CXXSTD: 14
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++ -msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-stdlib=libc++
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        Clang 9 libc++ C++17 UBASAN:
+          TOOLSET: clang
+          CXX: clang++-9
+          PACKAGES: clang-9 libc++-9-dev libc++abi-9-dev
+          VARIANT: release
+          B2_FLAGS: <address-sanitizer>norecover <undefined-sanitizer>norecover
+          UBSAN_OPTIONS: print_stacktrace=1
+          CXXSTD: 17
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++ -msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-stdlib=libc++
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        Clang 9 libc++ C++17 TSAN:
+          TOOLSET: clang
+          CXX: clang++-9
+          PACKAGES: clang-9 libc++-9-dev libc++abi-9-dev
+          VARIANT: release
+          B2_FLAGS: <thread-sanitizer>norecover
+          CXXSTD: 17
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++ -msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-stdlib=libc++
+          B2_TARGETS: libs/beast/test//run-fat-tests
+        Clang 9 libc++ C++11 Release HEADER_ONLY NO_DEPRECATED:
+          TOOLSET: clang
+          CXX: clang++-9
+          PACKAGES: clang-9 libc++-9-dev libc++abi-9-dev
+          VARIANT: release
+          B2_FLAGS: <boost.beast.separate-compilation>off <boost.beast.allow-deprecated>off
+          CXXSTD: 11
+          CXX_FLAGS: <cxxflags>"-stdlib=libc++ -msse4.2 -funsigned-char -fno-omit-frame-pointer" <linkflags>-stdlib=libc++
+          B2_TARGETS: libs/beast/test//run-fat-tests
+    steps:
+      - bash: |
+            sudo apt update && sudo apt install -y $PACKAGES
+        displayName: Get dependencies
+      - bash: |
+            set -e
+            export BUILD_DIR=$(pwd)
+            cd ..
+            $BUILD_DIR/tools/get-boost.sh $GIT_BRANCH $BUILD_DIR
+            cd boost-root
+            ./bootstrap.sh || cat bootstrap.log
+            cp libs/beast/tools/user-config.jam ~/user-config.jam
+            echo "using $TOOLSET : : $(which $CXX) : $CXX_FLAGS ;" >> ~/user-config.jam
+            echo "project : requirements $B2_FLAGS ;" >> ~/user-config.jam
+        displayName: Get Boost
+      - bash: |
+            set -e
+            cd ../boost-root
+            echo "B2_FLAGS: $B2_FLAGS"
+            ./b2 -j2 \
+              --debug-configuration \
+              cxxstd=$CXXSTD \
+              toolset=$TOOLSET \
+              variant=$VARIANT \
+              $B2_TARGETS
+        displayName: Build & Run tests
+
+  - job: 'macOS'
+    pool:
+      vmImage: 'macOS-10.13'
+    strategy:
+      matrix:
+        Xcode 10.1 C++17 Release:
+          TOOLSET: clang
+          VARIANT: release
+          CXXSTD: 17
+          XCODE_APP: /Applications/Xcode_10.1.app
+        Xcode 9.4.1 C++11 Release:
+          TOOLSET: clang
+          VARIANT: release
+          CXXSTD: 11
+          XCODE_APP: /Applications/Xcode_9.4.1.app
+    steps:
+      - bash: |
+          brew install openssl
+        displayName: Get OpenSSL
+      - bash: |
+          set -e
+          sudo xcode-select -switch ${XCODE_APP}
+          which clang++
+          export BUILD_DIR=$(pwd)
+          cd ..
+          $BUILD_DIR/tools/get-boost.sh $GIT_BRANCH $BUILD_DIR
+          cd boost-root
+          ./bootstrap.sh || cat bootstrap.log
+          cp libs/beast/tools/user-config.jam ~/user-config.jam
+        displayName: Get Boost
+      - bash: |
+            set -e
+            export OPENSSL_ROOT=$(brew --prefix openssl)
+            cd ../boost-root
+            ./b2 -j2 \
+              --debug-configuration \
+              define=BOOST_COROUTINES_NO_DEPRECATION_WARNING=1 \
+              cxxstd=$CXXSTD \
+              libs/beast/test//run-fat-tests \
+              libs/beast/example \
+              toolset=$TOOLSET \
+              variant=$VARIANT
+        displayName: Build & Run tests
+
+  - job: 'Windows'
+    strategy:
+      matrix:
+        # MSVC14.2: # FIXME(djarek): windows-2019 doesn't have vcpkg
+        MSVC14.2 C++17 x64:
+          VM_IMAGE: 'windows-2019'
+          TOOLSET: msvc-14.2
+          B2_FLAGS: define=BOOST_BEAST_USE_STD_STRING_VIEW
+          CXXSTD: 17
+          ADDRMODEL: 64
+        MSVC14.1 C++17 x64:
+          VM_IMAGE: 'vs2017-win2016'
+          TOOLSET: msvc-14.1
+          B2_FLAGS: define=BOOST_BEAST_USE_STD_STRING_VIEW
+          CXXSTD: 17
+          ADDRMODEL: 64
+        MSVC14.0 C++11 x64:
+          VM_IMAGE: 'vs2017-win2016'
+          TOOLSET: msvc-14.0
+          CXXSTD: 11
+          ADDRMODEL: 64
+    pool:
+      vmImage: $(VM_IMAGE)
+    steps:
+      - bash: |
+          vcpkg install openssl --triplet "x$ADDRMODEL""-windows"
+        displayName: Get OpenSSL
+
+      - bash: |
+          set -e
+          export BUILD_DIR=$(pwd)
+          cd ..
+          $BUILD_DIR/tools/get-boost.sh $GIT_BRANCH $BUILD_DIR
+          cd boost-root
+          ./bootstrap.sh
+          cp libs/beast/tools/user-config.jam ~/user-config.jam
+        displayName: Get Boost
+
+      - bash: |
+          set -e
+          echo "VCPKG_ROOT: $VCPKG_INSTALLATION_ROOT"
+          export OPENSSL_ROOT="$VCPKG_INSTALLATION_ROOT""/installed/x$ADDRMODEL""-windows"
+          cd ../boost-root
+          ./b2 -j2 \
+            --debug-configuration \
+            variant=debug \
+            cxxstd=$CXXSTD \
+            address-model=$ADDRMODEL \
+            toolset=$TOOLSET \
+            $B2_FLAGS \
+            libs/beast/example
+          ./b2 -j2 \
+            --debug-configuration \
+            variant=debug,release \
+            cxxstd=$CXXSTD \
+            address-model=$ADDRMODEL \
+            toolset=$TOOLSET \
+            $B2_FLAGS \
+            --verbose-test \
+            libs/beast/test//run-fat-tests
+        displayName: Build & Run tests
diff --git a/src/boost/libs/beast/example/CMakeLists.txt b/src/boost/libs/beast/example/CMakeLists.txt
new file mode 100644
index 000000000..950c29db9
--- /dev/null
+++ b/src/boost/libs/beast/example/CMakeLists.txt
@@ -0,0 +1,14 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (advanced)
+add_subdirectory (http)
+add_subdirectory (websocket)
+
+add_subdirectory (echo-op)
diff --git a/src/boost/libs/beast/example/Jamfile b/src/boost/libs/beast/example/Jamfile
new file mode 100644
index 000000000..8b49d5fd4
--- /dev/null
+++ b/src/boost/libs/beast/example/Jamfile
@@ -0,0 +1,32 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import testing ;
+import ../../config/checks/config : requires ;
+
+project /boost/beast/example
+    : requirements
+    [ requires
+        cxx11_constexpr
+        cxx11_decltype
+        cxx11_hdr_tuple
+        #cxx11_sfinae_expr # Every MSVC fails this
+        cxx11_template_aliases
+        cxx11_variadic_templates
+    ]
+    <library>/boost/beast//lib-asio/<link>static
+    <boost.beast.separate-compilation>on:<library>/boost/beast//lib-beast/<link>static
+    ;
+
+build-project advanced ;
+build-project http ;
+build-project websocket ;
+
+# legacy
+build-project echo-op ;
diff --git a/src/boost/libs/beast/example/advanced/CMakeLists.txt b/src/boost/libs/beast/example/advanced/CMakeLists.txt
new file mode 100644
index 000000000..af83e043b
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/CMakeLists.txt
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (server)
+add_subdirectory (server-flex)
diff --git a/src/boost/libs/beast/example/advanced/Jamfile b/src/boost/libs/beast/example/advanced/Jamfile
new file mode 100644
index 000000000..d1053a900
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/Jamfile
@@ -0,0 +1,13 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project server ;
+
+# SSL
+build-project server-flex ;
diff --git a/src/boost/libs/beast/example/advanced/server-flex/CMakeLists.txt b/src/boost/libs/beast/example/advanced/server-flex/CMakeLists.txt
new file mode 100644
index 000000000..d6075b277
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/server-flex/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/advanced/server-flex "/")
+
+    add_executable (advanced-server-flex
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        advanced_server_flex.cpp
+    )
+
+    set_property(TARGET advanced-server-flex PROPERTY FOLDER "example-advanced-server")
+    
+    target_link_libraries (advanced-server-flex
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/advanced/server-flex/Jamfile b/src/boost/libs/beast/example/advanced/server-flex/Jamfile
new file mode 100644
index 000000000..e7bd844aa
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/server-flex/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe advanced-server-flex :
+    advanced_server_flex.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/advanced/server-flex/advanced_server_flex.cpp b/src/boost/libs/beast/example/advanced/server-flex/advanced_server_flex.cpp
new file mode 100644
index 000000000..b0c889bf9
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/server-flex/advanced_server_flex.cpp
@@ -0,0 +1,1030 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: Advanced server, flex (plain + SSL)
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/bind_executor.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/signal_set.hpp>
+#include <boost/asio/steady_timer.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/make_unique.hpp>
+#include <boost/optional.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;                 // from <boost/beast.hpp>
+namespace http = beast::http;                   // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket;         // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;                    // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;               // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;               // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    // ssl::error::stream_truncated, also known as an SSL "short read",
+    // indicates the peer closed the connection without performing the
+    // required closing handshake (for example, Google does this to
+    // improve performance). Generally this can be a security issue,
+    // but if your communication protocol is self-terminated (as
+    // it is with both HTTP and WebSocket) then you may simply
+    // ignore the lack of close_notify.
+    //
+    // https://github.com/boostorg/beast/issues/38
+    //
+    // https://security.stackexchange.com/questions/91435/how-to-handle-a-malicious-ssl-tls-shutdown
+    //
+    // When a short read would cut off the end of an HTTP message,
+    // Beast returns the error beast::http::error::partial_message.
+    // Therefore, if we see a short read here, it has occurred
+    // after the message has been completed, so it is safe to ignore it.
+
+    if(ec == net::ssl::error::stream_truncated)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+//------------------------------------------------------------------------------
+
+// Echoes back all received WebSocket messages.
+// This uses the Curiously Recurring Template Pattern so that
+// the same code works with both SSL streams and regular sockets.
+template<class Derived>
+class websocket_session
+{
+    // Access the derived class, this is part of
+    // the Curiously Recurring Template Pattern idiom.
+    Derived&
+    derived()
+    {
+        return static_cast<Derived&>(*this);
+    }
+
+    beast::flat_buffer buffer_;
+
+    // Start the asynchronous operation
+    template<class Body, class Allocator>
+    void
+    do_accept(http::request<Body, http::basic_fields<Allocator>> req)
+    {
+        // Set suggested timeout settings for the websocket
+        derived().ws().set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::server));
+
+        // Set a decorator to change the Server of the handshake
+        derived().ws().set_option(
+            websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " advanced-server-flex");
+            }));
+
+        // Accept the websocket handshake
+        derived().ws().async_accept(
+            req,
+            beast::bind_front_handler(
+                &websocket_session::on_accept,
+                derived().shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "accept");
+
+        // Read a message
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        // Read a message into our buffer
+        derived().ws().async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &websocket_session::on_read,
+                derived().shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This indicates that the websocket_session was closed
+        if(ec == websocket::error::closed)
+            return;
+
+        if(ec)
+            fail(ec, "read");
+
+        // Echo the message
+        derived().ws().text(derived().ws().got_text());
+        derived().ws().async_write(
+            buffer_.data(),
+            beast::bind_front_handler(
+                &websocket_session::on_write,
+                derived().shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Clear the buffer
+        buffer_.consume(buffer_.size());
+
+        // Do another read
+        do_read();
+    }
+
+public:
+    // Start the asynchronous operation
+    template<class Body, class Allocator>
+    void
+    run(http::request<Body, http::basic_fields<Allocator>> req)
+    {
+        // Accept the WebSocket upgrade request
+        do_accept(std::move(req));
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Handles a plain WebSocket connection
+class plain_websocket_session
+    : public websocket_session<plain_websocket_session>
+    , public std::enable_shared_from_this<plain_websocket_session>
+{
+    websocket::stream<beast::tcp_stream> ws_;
+
+public:
+    // Create the session
+    explicit
+    plain_websocket_session(
+        beast::tcp_stream&& stream)
+        : ws_(std::move(stream))
+    {
+    }
+
+    // Called by the base class
+    websocket::stream<beast::tcp_stream>&
+    ws()
+    {
+        return ws_;
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Handles an SSL WebSocket connection
+class ssl_websocket_session
+    : public websocket_session<ssl_websocket_session>
+    , public std::enable_shared_from_this<ssl_websocket_session>
+{
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>> ws_;
+
+public:
+    // Create the ssl_websocket_session
+    explicit
+    ssl_websocket_session(
+        beast::ssl_stream<beast::tcp_stream>&& stream)
+        : ws_(std::move(stream))
+    {
+    }
+
+    // Called by the base class
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>>&
+    ws()
+    {
+        return ws_;
+    }
+};
+
+//------------------------------------------------------------------------------
+
+template<class Body, class Allocator>
+void
+make_websocket_session(
+    beast::tcp_stream stream,
+    http::request<Body, http::basic_fields<Allocator>> req)
+{
+    std::make_shared<plain_websocket_session>(
+        std::move(stream))->run(std::move(req));
+}
+
+template<class Body, class Allocator>
+void
+make_websocket_session(
+    beast::ssl_stream<beast::tcp_stream> stream,
+    http::request<Body, http::basic_fields<Allocator>> req)
+{
+    std::make_shared<ssl_websocket_session>(
+        std::move(stream))->run(std::move(req));
+}
+
+//------------------------------------------------------------------------------
+
+// Handles an HTTP server connection.
+// This uses the Curiously Recurring Template Pattern so that
+// the same code works with both SSL streams and regular sockets.
+template<class Derived>
+class http_session
+{
+    // Access the derived class, this is part of
+    // the Curiously Recurring Template Pattern idiom.
+    Derived&
+    derived()
+    {
+        return static_cast<Derived&>(*this);
+    }
+
+    // This queue is used for HTTP pipelining.
+    class queue
+    {
+        enum
+        {
+            // Maximum number of responses we will queue
+            limit = 8
+        };
+
+        // The type-erased, saved work item
+        struct work
+        {
+            virtual ~work() = default;
+            virtual void operator()() = 0;
+        };
+
+        http_session& self_;
+        std::vector<std::unique_ptr<work>> items_;
+
+    public:
+        explicit
+        queue(http_session& self)
+            : self_(self)
+        {
+            static_assert(limit > 0, "queue limit must be positive");
+            items_.reserve(limit);
+        }
+
+        // Returns `true` if we have reached the queue limit
+        bool
+        is_full() const
+        {
+            return items_.size() >= limit;
+        }
+
+        // Called when a message finishes sending
+        // Returns `true` if the caller should initiate a read
+        bool
+        on_write()
+        {
+            BOOST_ASSERT(! items_.empty());
+            auto const was_full = is_full();
+            items_.erase(items_.begin());
+            if(! items_.empty())
+                (*items_.front())();
+            return was_full;
+        }
+
+        // Called by the HTTP handler to send a response.
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg)
+        {
+            // This holds a work item
+            struct work_impl : work
+            {
+                http_session& self_;
+                http::message<isRequest, Body, Fields> msg_;
+
+                work_impl(
+                    http_session& self,
+                    http::message<isRequest, Body, Fields>&& msg)
+                    : self_(self)
+                    , msg_(std::move(msg))
+                {
+                }
+
+                void
+                operator()()
+                {
+                    http::async_write(
+                        self_.derived().stream(),
+                        msg_,
+                        beast::bind_front_handler(
+                            &http_session::on_write,
+                            self_.derived().shared_from_this(),
+                            msg_.need_eof()));
+                }
+            };
+
+            // Allocate and store the work
+            items_.push_back(
+                boost::make_unique<work_impl>(self_, std::move(msg)));
+
+            // If there was no previous work, start this one
+            if(items_.size() == 1)
+                (*items_.front())();
+        }
+    };
+
+    std::shared_ptr<std::string const> doc_root_;
+    queue queue_;
+
+    // The parser is stored in an optional container so we can
+    // construct it from scratch it at the beginning of each new message.
+    boost::optional<http::request_parser<http::string_body>> parser_;
+
+protected:
+    beast::flat_buffer buffer_;
+
+public:
+    // Construct the session
+    http_session(
+        beast::flat_buffer buffer,
+        std::shared_ptr<std::string const> const& doc_root)
+        : doc_root_(doc_root)
+        , queue_(*this)
+        , buffer_(std::move(buffer))
+    {
+    }
+
+    void
+    do_read()
+    {
+        // Construct a new parser for each message
+        parser_.emplace();
+
+        // Apply a reasonable limit to the allowed size
+        // of the body in bytes to prevent abuse.
+        parser_->body_limit(10000);
+
+        // Set the timeout.
+        beast::get_lowest_layer(
+            derived().stream()).expires_after(std::chrono::seconds(30));
+
+        // Read a request using the parser-oriented interface
+        http::async_read(
+            derived().stream(),
+            buffer_,
+            *parser_,
+            beast::bind_front_handler(
+                &http_session::on_read,
+                derived().shared_from_this()));
+    }
+
+    void
+    on_read(beast::error_code ec, std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This means they closed the connection
+        if(ec == http::error::end_of_stream)
+            return derived().do_eof();
+
+        if(ec)
+            return fail(ec, "read");
+
+        // See if it is a WebSocket Upgrade
+        if(websocket::is_upgrade(parser_->get()))
+        {
+            // Disable the timeout.
+            // The websocket::stream uses its own timeout settings.
+            beast::get_lowest_layer(derived().stream()).expires_never();
+
+            // Create a websocket session, transferring ownership
+            // of both the socket and the HTTP request.
+            return make_websocket_session(
+                derived().release_stream(),
+                parser_->release());
+        }
+
+        // Send the response
+        handle_request(*doc_root_, parser_->release(), queue_);
+
+        // If we aren't at the queue limit, try to pipeline another request
+        if(! queue_.is_full())
+            do_read();
+    }
+
+    void
+    on_write(bool close, beast::error_code ec, std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            return derived().do_eof();
+        }
+
+        // Inform the queue that a write completed
+        if(queue_.on_write())
+        {
+            // Read another request
+            do_read();
+        }
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Handles a plain HTTP connection
+class plain_http_session
+    : public http_session<plain_http_session>
+    , public std::enable_shared_from_this<plain_http_session>
+{
+    beast::tcp_stream stream_;
+
+public:
+    // Create the session
+    plain_http_session(
+        beast::tcp_stream&& stream,
+        beast::flat_buffer&& buffer,
+        std::shared_ptr<std::string const> const& doc_root)
+        : http_session<plain_http_session>(
+            std::move(buffer),
+            doc_root)
+        , stream_(std::move(stream))
+    {
+    }
+
+    // Start the session
+    void
+    run()
+    {
+        this->do_read();
+    }
+
+    // Called by the base class
+    beast::tcp_stream&
+    stream()
+    {
+        return stream_;
+    }
+
+    // Called by the base class
+    beast::tcp_stream
+    release_stream()
+    {
+        return std::move(stream_);
+    }
+
+    // Called by the base class
+    void
+    do_eof()
+    {
+        // Send a TCP shutdown
+        beast::error_code ec;
+        stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Handles an SSL HTTP connection
+class ssl_http_session
+    : public http_session<ssl_http_session>
+    , public std::enable_shared_from_this<ssl_http_session>
+{
+    beast::ssl_stream<beast::tcp_stream> stream_;
+
+public:
+    // Create the http_session
+    ssl_http_session(
+        beast::tcp_stream&& stream,
+        ssl::context& ctx,
+        beast::flat_buffer&& buffer,
+        std::shared_ptr<std::string const> const& doc_root)
+        : http_session<ssl_http_session>(
+            std::move(buffer),
+            doc_root)
+        , stream_(std::move(stream), ctx)
+    {
+    }
+
+    // Start the session
+    void
+    run()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Perform the SSL handshake
+        // Note, this is the buffered version of the handshake.
+        stream_.async_handshake(
+            ssl::stream_base::server,
+            buffer_.data(),
+            beast::bind_front_handler(
+                &ssl_http_session::on_handshake,
+                shared_from_this()));
+    }
+
+    // Called by the base class
+    beast::ssl_stream<beast::tcp_stream>&
+    stream()
+    {
+        return stream_;
+    }
+
+    // Called by the base class
+    beast::ssl_stream<beast::tcp_stream>
+    release_stream()
+    {
+        return std::move(stream_);
+    }
+
+    // Called by the base class
+    void
+    do_eof()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Perform the SSL shutdown
+        stream_.async_shutdown(
+            beast::bind_front_handler(
+                &ssl_http_session::on_shutdown,
+                shared_from_this()));
+    }
+
+private:
+    void
+    on_handshake(
+        beast::error_code ec,
+        std::size_t bytes_used)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Consume the portion of the buffer used by the handshake
+        buffer_.consume(bytes_used);
+
+        do_read();
+    }
+
+    void
+    on_shutdown(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "shutdown");
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Detects SSL handshakes
+class detect_session : public std::enable_shared_from_this<detect_session>
+{
+    beast::tcp_stream stream_;
+    ssl::context& ctx_;
+    std::shared_ptr<std::string const> doc_root_;
+    beast::flat_buffer buffer_;
+
+public:
+    explicit
+    detect_session(
+        tcp::socket&& socket,
+        ssl::context& ctx,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket))
+        , ctx_(ctx)
+        , doc_root_(doc_root)
+    {
+    }
+
+    // Launch the detector
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(
+            stream_.get_executor(),
+            beast::bind_front_handler(
+                &detect_session::on_run,
+                this->shared_from_this()));
+    }
+
+    void
+    on_run()
+    {
+        // Set the timeout.
+        stream_.expires_after(std::chrono::seconds(30));
+
+        beast::async_detect_ssl(
+            stream_,
+            buffer_,
+            beast::bind_front_handler(
+                &detect_session::on_detect,
+                this->shared_from_this()));
+    }
+
+    void
+    on_detect(beast::error_code ec, bool result)
+    {
+        if(ec)
+            return fail(ec, "detect");
+
+        if(result)
+        {
+            // Launch SSL session
+            std::make_shared<ssl_http_session>(
+                std::move(stream_),
+                ctx_,
+                std::move(buffer_),
+                doc_root_)->run();
+            return;
+        }
+
+        // Launch plain session
+        std::make_shared<plain_http_session>(
+            std::move(stream_),
+            std::move(buffer_),
+            doc_root_)->run();
+    }
+};
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    ssl::context& ctx_;
+    tcp::acceptor acceptor_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        ssl::context& ctx,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , ctx_(ctx)
+        , acceptor_(net::make_strand(ioc))
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the detector http_session and run it
+            std::make_shared<detect_session>(
+                std::move(socket),
+                ctx_,
+                doc_root_)->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: advanced-server-flex <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    advanced-server-flex 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        ctx,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Capture SIGINT and SIGTERM to perform a clean shutdown
+    net::signal_set signals(ioc, SIGINT, SIGTERM);
+    signals.async_wait(
+        [&](beast::error_code const&, int)
+        {
+            // Stop the `io_context`. This will cause `run()`
+            // to return immediately, eventually destroying the
+            // `io_context` and all of the sockets in it.
+            ioc.stop();
+        });
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    // (If we get here, it means we got a SIGINT or SIGTERM)
+
+    // Block until all the threads exit
+    for(auto& t : v)
+        t.join();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/advanced/server/CMakeLists.txt b/src/boost/libs/beast/example/advanced/server/CMakeLists.txt
new file mode 100644
index 000000000..08014afee
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/server/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/advanced/server "/")
+
+add_executable (advanced-server
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    advanced_server.cpp
+)
+
+target_link_libraries(advanced-server
+    lib-asio
+    lib-beast)
+
+set_property(TARGET advanced-server PROPERTY FOLDER "example-advanced-server")
diff --git a/src/boost/libs/beast/example/advanced/server/Jamfile b/src/boost/libs/beast/example/advanced/server/Jamfile
new file mode 100644
index 000000000..5f9ceecd8
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/server/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe advanced-server :
+    advanced_server.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/advanced/server/advanced_server.cpp b/src/boost/libs/beast/example/advanced/server/advanced_server.cpp
new file mode 100644
index 000000000..715f8b8ca
--- /dev/null
+++ b/src/boost/libs/beast/example/advanced/server/advanced_server.cpp
@@ -0,0 +1,700 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: Advanced server
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/bind_executor.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/signal_set.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/make_unique.hpp>
+#include <boost/optional.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;                 // from <boost/beast.hpp>
+namespace http = beast::http;                   // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket;         // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;                    // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;               // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+class websocket_session : public std::enable_shared_from_this<websocket_session>
+{
+    websocket::stream<beast::tcp_stream> ws_;
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    websocket_session(tcp::socket&& socket)
+        : ws_(std::move(socket))
+    {
+    }
+
+    // Start the asynchronous accept operation
+    template<class Body, class Allocator>
+    void
+    do_accept(http::request<Body, http::basic_fields<Allocator>> req)
+    {
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::server));
+
+        // Set a decorator to change the Server of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " advanced-server");
+            }));
+
+        // Accept the websocket handshake
+        ws_.async_accept(
+            req,
+            beast::bind_front_handler(
+                &websocket_session::on_accept,
+                shared_from_this()));
+    }
+
+private:
+    void
+    on_accept(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "accept");
+
+        // Read a message
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &websocket_session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This indicates that the websocket_session was closed
+        if(ec == websocket::error::closed)
+            return;
+
+        if(ec)
+            fail(ec, "read");
+
+        // Echo the message
+        ws_.text(ws_.got_text());
+        ws_.async_write(
+            buffer_.data(),
+            beast::bind_front_handler(
+                &websocket_session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Clear the buffer
+        buffer_.consume(buffer_.size());
+
+        // Do another read
+        do_read();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Handles an HTTP server connection
+class http_session : public std::enable_shared_from_this<http_session>
+{
+    // This queue is used for HTTP pipelining.
+    class queue
+    {
+        enum
+        {
+            // Maximum number of responses we will queue
+            limit = 8
+        };
+
+        // The type-erased, saved work item
+        struct work
+        {
+            virtual ~work() = default;
+            virtual void operator()() = 0;
+        };
+
+        http_session& self_;
+        std::vector<std::unique_ptr<work>> items_;
+
+    public:
+        explicit
+        queue(http_session& self)
+            : self_(self)
+        {
+            static_assert(limit > 0, "queue limit must be positive");
+            items_.reserve(limit);
+        }
+
+        // Returns `true` if we have reached the queue limit
+        bool
+        is_full() const
+        {
+            return items_.size() >= limit;
+        }
+
+        // Called when a message finishes sending
+        // Returns `true` if the caller should initiate a read
+        bool
+        on_write()
+        {
+            BOOST_ASSERT(! items_.empty());
+            auto const was_full = is_full();
+            items_.erase(items_.begin());
+            if(! items_.empty())
+                (*items_.front())();
+            return was_full;
+        }
+
+        // Called by the HTTP handler to send a response.
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg)
+        {
+            // This holds a work item
+            struct work_impl : work
+            {
+                http_session& self_;
+                http::message<isRequest, Body, Fields> msg_;
+
+                work_impl(
+                    http_session& self,
+                    http::message<isRequest, Body, Fields>&& msg)
+                    : self_(self)
+                    , msg_(std::move(msg))
+                {
+                }
+
+                void
+                operator()()
+                {
+                    http::async_write(
+                        self_.stream_,
+                        msg_,
+                        beast::bind_front_handler(
+                            &http_session::on_write,
+                            self_.shared_from_this(),
+                            msg_.need_eof()));
+                }
+            };
+
+            // Allocate and store the work
+            items_.push_back(
+                boost::make_unique<work_impl>(self_, std::move(msg)));
+
+            // If there was no previous work, start this one
+            if(items_.size() == 1)
+                (*items_.front())();
+        }
+    };
+
+    beast::tcp_stream stream_;
+    beast::flat_buffer buffer_;
+    std::shared_ptr<std::string const> doc_root_;
+    queue queue_;
+
+    // The parser is stored in an optional container so we can
+    // construct it from scratch it at the beginning of each new message.
+    boost::optional<http::request_parser<http::string_body>> parser_;
+
+public:
+    // Take ownership of the socket
+    http_session(
+        tcp::socket&& socket,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket))
+        , doc_root_(doc_root)
+        , queue_(*this)
+    {
+    }
+
+    // Start the session
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(
+            stream_.get_executor(),
+            beast::bind_front_handler(
+                &http_session::do_read,
+                this->shared_from_this()));
+    }
+
+
+private:
+    void
+    do_read()
+    {
+        // Construct a new parser for each message
+        parser_.emplace();
+
+        // Apply a reasonable limit to the allowed size
+        // of the body in bytes to prevent abuse.
+        parser_->body_limit(10000);
+
+        // Set the timeout.
+        stream_.expires_after(std::chrono::seconds(30));
+
+        // Read a request using the parser-oriented interface
+        http::async_read(
+            stream_,
+            buffer_,
+            *parser_,
+            beast::bind_front_handler(
+                &http_session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(beast::error_code ec, std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This means they closed the connection
+        if(ec == http::error::end_of_stream)
+            return do_close();
+
+        if(ec)
+            return fail(ec, "read");
+
+        // See if it is a WebSocket Upgrade
+        if(websocket::is_upgrade(parser_->get()))
+        {
+            // Create a websocket session, transferring ownership
+            // of both the socket and the HTTP request.
+            std::make_shared<websocket_session>(
+                stream_.release_socket())->do_accept(parser_->release());
+            return;
+        }
+
+        // Send the response
+        handle_request(*doc_root_, parser_->release(), queue_);
+
+        // If we aren't at the queue limit, try to pipeline another request
+        if(! queue_.is_full())
+            do_read();
+    }
+
+    void
+    on_write(bool close, beast::error_code ec, std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            return do_close();
+        }
+
+        // Inform the queue that a write completed
+        if(queue_.on_write())
+        {
+            // Read another request
+            do_read();
+        }
+    }
+
+    void
+    do_close()
+    {
+        // Send a TCP shutdown
+        beast::error_code ec;
+        stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , acceptor_(net::make_strand(ioc))
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(
+            acceptor_.get_executor(),
+            beast::bind_front_handler(
+                &listener::do_accept,
+                this->shared_from_this()));
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the http session and run it
+            std::make_shared<http_session>(
+                std::move(socket),
+                doc_root_)->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: advanced-server <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    advanced-server 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Capture SIGINT and SIGTERM to perform a clean shutdown
+    net::signal_set signals(ioc, SIGINT, SIGTERM);
+    signals.async_wait(
+        [&](beast::error_code const&, int)
+        {
+            // Stop the `io_context`. This will cause `run()`
+            // to return immediately, eventually destroying the
+            // `io_context` and all of the sockets in it.
+            ioc.stop();
+        });
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    // (If we get here, it means we got a SIGINT or SIGTERM)
+
+    // Block until all the threads exit
+    for(auto& t : v)
+        t.join();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/common/root_certificates.hpp b/src/boost/libs/beast/example/common/root_certificates.hpp
new file mode 100644
index 000000000..aa65bdeb8
--- /dev/null
+++ b/src/boost/libs/beast/example/common/root_certificates.hpp
@@ -0,0 +1,151 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_COMMON_ROOT_CERTIFICATES_HPP
+#define BOOST_BEAST_EXAMPLE_COMMON_ROOT_CERTIFICATES_HPP
+
+#include <boost/asio/ssl.hpp>
+#include <string>
+
+/*
+    PLEASE READ
+
+    These root certificates here are included just to make the
+    SSL client examples work. They are NOT intended to be
+    illustrative of best-practices for performing TLS certificate
+    verification.
+
+    A REAL program which needs to verify the authenticity of a
+    server IP address resolved from a given DNS name needs to
+    consult the operating system specific certificate store
+    to validate the chain of signatures, compare the domain name
+    properly against the domain name in the certificate, check
+    the certificate revocation list, and probably do some other
+    things.
+
+    ALL of these operations are entirely outside the scope of
+    both Boost.Beast and Boost.Asio.
+
+    See (work in progress):
+        https://github.com/djarek/certify
+
+    tl;dr: root_certificates.hpp should not be used in production code
+*/
+
+namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
+
+namespace detail {
+
+inline
+void
+load_root_certificates(ssl::context& ctx, boost::system::error_code& ec)
+{
+    std::string const cert =
+        /*  This is the DigiCert Global Root CA
+
+            CN = DigiCert High Assurance EV Root CA
+            OU = www.digicert.com
+            O = DigiCert Inc
+            C = US
+
+            Valid to: 10 November 2031
+                                
+            Serial #:
+            08:3B:E0:56:90:42:46:B1:A1:75:6A:C9:59:91:C7:4A
+
+            SHA1 Fingerprint:
+            A8:98:5D:3A:65:E5:E5:C4:B2:D7:D6:6D:40:C6:DD:2F:B1:9C:54:36
+
+            SHA256 Fingerprint:
+            43:48:A0:E9:44:4C:78:CB:26:5E:05:8D:5E:89:44:B4:D8:4F:96:62:BD:26:DB:25:7F:89:34:A4:43:C7:01:61
+        */
+        "-----BEGIN CERTIFICATE-----\n"
+        "MIIDrzCCApegAwIBAgIQCDvgVpBCRrGhdWrJWZHHSjANBgkqhkiG9w0BAQUFADBh\n"
+        "MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3\n"
+        "d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD\n"
+        "QTAeFw0wNjExMTAwMDAwMDBaFw0zMTExMTAwMDAwMDBaMGExCzAJBgNVBAYTAlVT\n"
+        "MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j\n"
+        "b20xIDAeBgNVBAMTF0RpZ2lDZXJ0IEdsb2JhbCBSb290IENBMIIBIjANBgkqhkiG\n"
+        "9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4jvhEXLeqKTTo1eqUKKPC3eQyaKl7hLOllsB\n"
+        "CSDMAZOnTjC3U/dDxGkAV53ijSLdhwZAAIEJzs4bg7/fzTtxRuLWZscFs3YnFo97\n"
+        "nh6Vfe63SKMI2tavegw5BmV/Sl0fvBf4q77uKNd0f3p4mVmFaG5cIzJLv07A6Fpt\n"
+        "43C/dxC//AH2hdmoRBBYMql1GNXRor5H4idq9Joz+EkIYIvUX7Q6hL+hqkpMfT7P\n"
+        "T19sdl6gSzeRntwi5m3OFBqOasv+zbMUZBfHWymeMr/y7vrTC0LUq7dBMtoM1O/4\n"
+        "gdW7jVg/tRvoSSiicNoxBN33shbyTApOB6jtSj1etX+jkMOvJwIDAQABo2MwYTAO\n"
+        "BgNVHQ8BAf8EBAMCAYYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUA95QNVbR\n"
+        "TLtm8KPiGxvDl7I90VUwHwYDVR0jBBgwFoAUA95QNVbRTLtm8KPiGxvDl7I90VUw\n"
+        "DQYJKoZIhvcNAQEFBQADggEBAMucN6pIExIK+t1EnE9SsPTfrgT1eXkIoyQY/Esr\n"
+        "hMAtudXH/vTBH1jLuG2cenTnmCmrEbXjcKChzUyImZOMkXDiqw8cvpOp/2PV5Adg\n"
+        "06O/nVsJ8dWO41P0jmP6P6fbtGbfYmbW0W5BjfIttep3Sp+dWOIrWcBAI+0tKIJF\n"
+        "PnlUkiaY4IBIqDfv8NZ5YBberOgOzW6sRBc4L0na4UU+Krk2U886UAb3LujEV0ls\n"
+        "YSEY1QSteDwsOoBrp+uvFRTp2InBuThs4pFsiv9kuXclVzDAGySj4dzp30d8tbQk\n"
+        "CAUw7C29C79Fv1C5qfPrmAESrciIxpg0X40KPMbp1ZWVbd4=\n"
+        "-----END CERTIFICATE-----\n"
+
+        /*  This is the GeoTrust root certificate.
+            
+            CN = GeoTrust Global CA
+            O = GeoTrust Inc.
+            C = US
+            Valid to: Friday, ‎May ‎20, ‎2022 9:00:00 PM
+                                
+            Thumbprint(sha1):
+            ‎de 28 f4 a4 ff e5 b9 2f a3 c5 03 d1 a3 49 a7 f9 96 2a 82 12
+        */
+        "-----BEGIN CERTIFICATE-----\n"
+        "MIIDaDCCAlCgAwIBAgIJAO8vBu8i8exWMA0GCSqGSIb3DQEBCwUAMEkxCzAJBgNV\n"
+        "BAYTAlVTMQswCQYDVQQIDAJDQTEtMCsGA1UEBwwkTG9zIEFuZ2VsZXNPPUJlYXN0\n"
+        "Q049d3d3LmV4YW1wbGUuY29tMB4XDTE3MDUwMzE4MzkxMloXDTQ0MDkxODE4Mzkx\n"
+        "MlowSTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNBMS0wKwYDVQQHDCRMb3MgQW5n\n"
+        "ZWxlc089QmVhc3RDTj13d3cuZXhhbXBsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUA\n"
+        "A4IBDwAwggEKAoIBAQDJ7BRKFO8fqmsEXw8v9YOVXyrQVsVbjSSGEs4Vzs4cJgcF\n"
+        "xqGitbnLIrOgiJpRAPLy5MNcAXE1strVGfdEf7xMYSZ/4wOrxUyVw/Ltgsft8m7b\n"
+        "Fu8TsCzO6XrxpnVtWk506YZ7ToTa5UjHfBi2+pWTxbpN12UhiZNUcrRsqTFW+6fO\n"
+        "9d7xm5wlaZG8cMdg0cO1bhkz45JSl3wWKIES7t3EfKePZbNlQ5hPy7Pd5JTmdGBp\n"
+        "yY8anC8u4LPbmgW0/U31PH0rRVfGcBbZsAoQw5Tc5dnb6N2GEIbq3ehSfdDHGnrv\n"
+        "enu2tOK9Qx6GEzXh3sekZkxcgh+NlIxCNxu//Dk9AgMBAAGjUzBRMB0GA1UdDgQW\n"
+        "BBTZh0N9Ne1OD7GBGJYz4PNESHuXezAfBgNVHSMEGDAWgBTZh0N9Ne1OD7GBGJYz\n"
+        "4PNESHuXezAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQCmTJVT\n"
+        "LH5Cru1vXtzb3N9dyolcVH82xFVwPewArchgq+CEkajOU9bnzCqvhM4CryBb4cUs\n"
+        "gqXWp85hAh55uBOqXb2yyESEleMCJEiVTwm/m26FdONvEGptsiCmF5Gxi0YRtn8N\n"
+        "V+KhrQaAyLrLdPYI7TrwAOisq2I1cD0mt+xgwuv/654Rl3IhOMx+fKWKJ9qLAiaE\n"
+        "fQyshjlPP9mYVxWOxqctUdQ8UnsUKKGEUcVrA08i1OAnVKlPFjKBvk+r7jpsTPcr\n"
+        "9pWXTO9JrYMML7d+XRSZA1n3856OqZDX4403+9FnXCvfcLZLLKTBvwwFgEFGpzjK\n"
+        "UEVbkhd5qstF6qWK\n"
+        "-----END CERTIFICATE-----\n";
+        ;
+
+    ctx.add_certificate_authority(
+        boost::asio::buffer(cert.data(), cert.size()), ec);
+    if(ec)
+        return;
+}
+
+} // detail
+
+// Load the root certificates into an ssl::context
+
+inline
+void
+load_root_certificates(ssl::context& ctx, boost::system::error_code& ec)
+{
+    detail::load_root_certificates(ctx, ec);
+}
+
+inline
+void
+load_root_certificates(ssl::context& ctx)
+{
+    boost::system::error_code ec;
+    detail::load_root_certificates(ctx, ec);
+    if(ec)
+        throw boost::system::system_error{ec};
+}
+
+#endif
diff --git a/src/boost/libs/beast/example/common/server_certificate.hpp b/src/boost/libs/beast/example/common/server_certificate.hpp
new file mode 100644
index 000000000..a20110e40
--- /dev/null
+++ b/src/boost/libs/beast/example/common/server_certificate.hpp
@@ -0,0 +1,124 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_COMMON_SERVER_CERTIFICATE_HPP
+#define BOOST_BEAST_EXAMPLE_COMMON_SERVER_CERTIFICATE_HPP
+
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/ssl/context.hpp>
+#include <cstddef>
+#include <memory>
+
+/*  Load a signed certificate into the ssl context, and configure
+    the context for use with a server.
+
+    For this to work with the browser or operating system, it is
+    necessary to import the "Beast Test CA" certificate into
+    the local certificate store, browser, or operating system
+    depending on your environment Please see the documentation
+    accompanying the Beast certificate for more details.
+*/
+inline
+void
+load_server_certificate(boost::asio::ssl::context& ctx)
+{
+    /*
+        The certificate was generated from CMD.EXE on Windows 10 using:
+
+        winpty openssl dhparam -out dh.pem 2048
+        winpty openssl req -newkey rsa:2048 -nodes -keyout key.pem -x509 -days 10000 -out cert.pem -subj "//C=US\ST=CA\L=Los Angeles\O=Beast\CN=www.example.com"
+    */
+
+    std::string const cert =
+        "-----BEGIN CERTIFICATE-----\n"
+        "MIIDaDCCAlCgAwIBAgIJAO8vBu8i8exWMA0GCSqGSIb3DQEBCwUAMEkxCzAJBgNV\n"
+        "BAYTAlVTMQswCQYDVQQIDAJDQTEtMCsGA1UEBwwkTG9zIEFuZ2VsZXNPPUJlYXN0\n"
+        "Q049d3d3LmV4YW1wbGUuY29tMB4XDTE3MDUwMzE4MzkxMloXDTQ0MDkxODE4Mzkx\n"
+        "MlowSTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNBMS0wKwYDVQQHDCRMb3MgQW5n\n"
+        "ZWxlc089QmVhc3RDTj13d3cuZXhhbXBsZS5jb20wggEiMA0GCSqGSIb3DQEBAQUA\n"
+        "A4IBDwAwggEKAoIBAQDJ7BRKFO8fqmsEXw8v9YOVXyrQVsVbjSSGEs4Vzs4cJgcF\n"
+        "xqGitbnLIrOgiJpRAPLy5MNcAXE1strVGfdEf7xMYSZ/4wOrxUyVw/Ltgsft8m7b\n"
+        "Fu8TsCzO6XrxpnVtWk506YZ7ToTa5UjHfBi2+pWTxbpN12UhiZNUcrRsqTFW+6fO\n"
+        "9d7xm5wlaZG8cMdg0cO1bhkz45JSl3wWKIES7t3EfKePZbNlQ5hPy7Pd5JTmdGBp\n"
+        "yY8anC8u4LPbmgW0/U31PH0rRVfGcBbZsAoQw5Tc5dnb6N2GEIbq3ehSfdDHGnrv\n"
+        "enu2tOK9Qx6GEzXh3sekZkxcgh+NlIxCNxu//Dk9AgMBAAGjUzBRMB0GA1UdDgQW\n"
+        "BBTZh0N9Ne1OD7GBGJYz4PNESHuXezAfBgNVHSMEGDAWgBTZh0N9Ne1OD7GBGJYz\n"
+        "4PNESHuXezAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQCmTJVT\n"
+        "LH5Cru1vXtzb3N9dyolcVH82xFVwPewArchgq+CEkajOU9bnzCqvhM4CryBb4cUs\n"
+        "gqXWp85hAh55uBOqXb2yyESEleMCJEiVTwm/m26FdONvEGptsiCmF5Gxi0YRtn8N\n"
+        "V+KhrQaAyLrLdPYI7TrwAOisq2I1cD0mt+xgwuv/654Rl3IhOMx+fKWKJ9qLAiaE\n"
+        "fQyshjlPP9mYVxWOxqctUdQ8UnsUKKGEUcVrA08i1OAnVKlPFjKBvk+r7jpsTPcr\n"
+        "9pWXTO9JrYMML7d+XRSZA1n3856OqZDX4403+9FnXCvfcLZLLKTBvwwFgEFGpzjK\n"
+        "UEVbkhd5qstF6qWK\n"
+        "-----END CERTIFICATE-----\n";
+
+    std::string const key =
+        "-----BEGIN PRIVATE KEY-----\n"
+        "MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDJ7BRKFO8fqmsE\n"
+        "Xw8v9YOVXyrQVsVbjSSGEs4Vzs4cJgcFxqGitbnLIrOgiJpRAPLy5MNcAXE1strV\n"
+        "GfdEf7xMYSZ/4wOrxUyVw/Ltgsft8m7bFu8TsCzO6XrxpnVtWk506YZ7ToTa5UjH\n"
+        "fBi2+pWTxbpN12UhiZNUcrRsqTFW+6fO9d7xm5wlaZG8cMdg0cO1bhkz45JSl3wW\n"
+        "KIES7t3EfKePZbNlQ5hPy7Pd5JTmdGBpyY8anC8u4LPbmgW0/U31PH0rRVfGcBbZ\n"
+        "sAoQw5Tc5dnb6N2GEIbq3ehSfdDHGnrvenu2tOK9Qx6GEzXh3sekZkxcgh+NlIxC\n"
+        "Nxu//Dk9AgMBAAECggEBAK1gV8uETg4SdfE67f9v/5uyK0DYQH1ro4C7hNiUycTB\n"
+        "oiYDd6YOA4m4MiQVJuuGtRR5+IR3eI1zFRMFSJs4UqYChNwqQGys7CVsKpplQOW+\n"
+        "1BCqkH2HN/Ix5662Dv3mHJemLCKUON77IJKoq0/xuZ04mc9csykox6grFWB3pjXY\n"
+        "OEn9U8pt5KNldWfpfAZ7xu9WfyvthGXlhfwKEetOuHfAQv7FF6s25UIEU6Hmnwp9\n"
+        "VmYp2twfMGdztz/gfFjKOGxf92RG+FMSkyAPq/vhyB7oQWxa+vdBn6BSdsfn27Qs\n"
+        "bTvXrGe4FYcbuw4WkAKTljZX7TUegkXiwFoSps0jegECgYEA7o5AcRTZVUmmSs8W\n"
+        "PUHn89UEuDAMFVk7grG1bg8exLQSpugCykcqXt1WNrqB7x6nB+dbVANWNhSmhgCg\n"
+        "VrV941vbx8ketqZ9YInSbGPWIU/tss3r8Yx2Ct3mQpvpGC6iGHzEc/NHJP8Efvh/\n"
+        "CcUWmLjLGJYYeP5oNu5cncC3fXUCgYEA2LANATm0A6sFVGe3sSLO9un1brA4zlZE\n"
+        "Hjd3KOZnMPt73B426qUOcw5B2wIS8GJsUES0P94pKg83oyzmoUV9vJpJLjHA4qmL\n"
+        "CDAd6CjAmE5ea4dFdZwDDS8F9FntJMdPQJA9vq+JaeS+k7ds3+7oiNe+RUIHR1Sz\n"
+        "VEAKh3Xw66kCgYB7KO/2Mchesu5qku2tZJhHF4QfP5cNcos511uO3bmJ3ln+16uR\n"
+        "GRqz7Vu0V6f7dvzPJM/O2QYqV5D9f9dHzN2YgvU9+QSlUeFK9PyxPv3vJt/WP1//\n"
+        "zf+nbpaRbwLxnCnNsKSQJFpnrE166/pSZfFbmZQpNlyeIuJU8czZGQTifQKBgHXe\n"
+        "/pQGEZhVNab+bHwdFTxXdDzr+1qyrodJYLaM7uFES9InVXQ6qSuJO+WosSi2QXlA\n"
+        "hlSfwwCwGnHXAPYFWSp5Owm34tbpp0mi8wHQ+UNgjhgsE2qwnTBUvgZ3zHpPORtD\n"
+        "23KZBkTmO40bIEyIJ1IZGdWO32q79nkEBTY+v/lRAoGBAI1rbouFYPBrTYQ9kcjt\n"
+        "1yfu4JF5MvO9JrHQ9tOwkqDmNCWx9xWXbgydsn/eFtuUMULWsG3lNjfst/Esb8ch\n"
+        "k5cZd6pdJZa4/vhEwrYYSuEjMCnRb0lUsm7TsHxQrUd6Fi/mUuFU/haC0o0chLq7\n"
+        "pVOUFq5mW8p0zbtfHbjkgxyF\n"
+        "-----END PRIVATE KEY-----\n";
+
+    std::string const dh =
+        "-----BEGIN DH PARAMETERS-----\n"
+        "MIIBCAKCAQEArzQc5mpm0Fs8yahDeySj31JZlwEphUdZ9StM2D8+Fo7TMduGtSi+\n"
+        "/HRWVwHcTFAgrxVdm+dl474mOUqqaz4MpzIb6+6OVfWHbQJmXPepZKyu4LgUPvY/\n"
+        "4q3/iDMjIS0fLOu/bLuObwU5ccZmDgfhmz1GanRlTQOiYRty3FiOATWZBRh6uv4u\n"
+        "tff4A9Bm3V9tLx9S6djq31w31Gl7OQhryodW28kc16t9TvO1BzcV3HjRPwpe701X\n"
+        "oEEZdnZWANkkpR/m/pfgdmGPU66S2sXMHgsliViQWpDCYeehrvFRHEdR9NV+XJfC\n"
+        "QMUk26jPTIVTLfXmmwU0u8vUkpR7LQKkwwIBAg==\n"
+        "-----END DH PARAMETERS-----\n";
+    
+    ctx.set_password_callback(
+        [](std::size_t,
+            boost::asio::ssl::context_base::password_purpose)
+        {
+            return "test";
+        });
+
+    ctx.set_options(
+        boost::asio::ssl::context::default_workarounds |
+        boost::asio::ssl::context::no_sslv2 |
+        boost::asio::ssl::context::single_dh_use);
+
+    ctx.use_certificate_chain(
+        boost::asio::buffer(cert.data(), cert.size()));
+
+    ctx.use_private_key(
+        boost::asio::buffer(key.data(), key.size()),
+        boost::asio::ssl::context::file_format::pem);
+
+    ctx.use_tmp_dh(
+        boost::asio::buffer(dh.data(), dh.size()));
+}
+
+#endif
diff --git a/src/boost/libs/beast/example/echo-op/CMakeLists.txt b/src/boost/libs/beast/example/echo-op/CMakeLists.txt
new file mode 100644
index 000000000..d0e086b6e
--- /dev/null
+++ b/src/boost/libs/beast/example/echo-op/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/echo-op "/")
+
+add_executable (echo-op
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    echo_op.cpp
+)
+
+target_link_libraries(echo-op
+    lib-asio
+    lib-beast)
+
+set_property(TARGET echo-op PROPERTY FOLDER "example")
diff --git a/src/boost/libs/beast/example/echo-op/Jamfile b/src/boost/libs/beast/example/echo-op/Jamfile
new file mode 100644
index 000000000..caeb767e2
--- /dev/null
+++ b/src/boost/libs/beast/example/echo-op/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe echo-op :
+    echo_op.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/echo-op/echo_op.cpp b/src/boost/libs/beast/example/echo-op/echo_op.cpp
new file mode 100644
index 000000000..475940beb
--- /dev/null
+++ b/src/boost/libs/beast/example/echo-op/echo_op.cpp
@@ -0,0 +1,377 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core.hpp>
+#include <boost/asio.hpp>
+#include <cstddef>
+#include <iostream>
+#include <memory>
+#include <utility>
+
+namespace net = boost::asio;
+namespace beast = boost::beast;
+
+//[example_core_echo_op_1
+
+template<
+    class AsyncStream,
+    class DynamicBuffer,
+    class CompletionToken>
+auto
+async_echo (AsyncStream& stream, DynamicBuffer& buffer, CompletionToken&& token)
+
+//]
+    ->
+    typename net::async_result<
+        typename std::decay<CompletionToken>::type,
+        void(beast::error_code)>::return_type;
+
+//------------------------------------------------------------------------------
+
+//[example_core_echo_op_2
+
+/** Asynchronously read a line and echo it back.
+
+    This function is used to asynchronously read a line ending
+    in a newline (`"\n"`) from the stream, and then write
+    it back.
+
+    This call always returns immediately. The asynchronous operation
+    will continue until one of the following conditions is true:
+
+    @li A line was read in and written back on the stream
+
+    @li An error occurs.
+
+    The algorithm, known as a <em>composed asynchronous operation</em>,
+    is implemented in terms of calls to the stream's `async_read_some`
+    and `async_write_some` function. The program must ensure that no
+    other reads or writes are performed until this operation completes.
+
+    Since the length of the line is not known ahead of time, the
+    implementation may read additional characters that lie past the
+    first line. These characters are stored in the dynamic buffer_.
+    The same dynamic buffer must be presented again in each call,
+    to provide the implementation with any leftover bytes.
+
+    @param stream The stream to operate on. The type must meet the
+    requirements of <em>AsyncReadStream</em> and @AsyncWriteStream
+
+    @param buffer A dynamic buffer to hold implementation-defined
+    temporary data. Ownership is not transferred; the caller is
+    responsible for ensuring that the lifetime of this object is
+    extended least until the completion handler is invoked.
+
+    @param token The handler to be called when the operation completes.
+    The implementation takes ownership of the handler by performing a decay-copy.
+    The handler must be invocable with this signature:
+    @code
+    void handler(
+        beast::error_code error      // Result of operation.
+    );
+    @endcode
+
+    Regardless of whether the asynchronous operation completes immediately or
+    not, the handler will not be invoked from within this function. Invocation
+    of the handler will be performed in a manner equivalent to using
+    `net::post`.
+*/
+template<
+    class AsyncStream,
+    class DynamicBuffer,
+    class CompletionToken>
+auto
+async_echo (
+    AsyncStream& stream,
+    DynamicBuffer& buffer, /*< Unlike Asio, we pass by non-const reference instead of rvalue-ref >*/
+    CompletionToken&& token) ->
+        typename net::async_result< /*< `async_result` deduces the return type from the completion handler >*/
+            typename std::decay<CompletionToken>::type,
+            void(beast::error_code) /*< The completion handler signature goes here >*/
+                >::return_type;
+//]
+
+//[example_core_echo_op_3
+
+template<class AsyncStream, class Handler>
+class echo_op;
+
+// This example uses the Asio's stackless "fauxroutines", implemented
+// using a macro-based solution. It makes the code easier to write and
+// easier to read. This include file defines the necessary macros and types.
+#include <boost/asio/yield.hpp>
+
+// Read a line and echo it back
+//
+template<
+    class AsyncStream,
+    class DynamicBuffer,
+    class CompletionToken>
+auto
+async_echo(
+    AsyncStream& stream,
+    DynamicBuffer& buffer,
+    CompletionToken&& token) ->
+        typename net::async_result<
+            typename std::decay<CompletionToken>::type,
+            void(beast::error_code)>::return_type /*< The completion handler signature goes here >*/
+{
+    // Perform some type checks using static assert, this helps
+    // with more friendly error messages when passing the wrong types.
+    static_assert(
+        beast::is_async_stream<AsyncStream>::value,
+        "AsyncStream type requirements not met");
+    static_assert(
+        net::is_dynamic_buffer<DynamicBuffer>::value,
+        "DynamicBuffer type requirements not met");
+
+    // This class template deduces the actual handler type from a
+    // CompletionToken, captures a local reference to the handler,
+    // and creates the `async_result` object which becomes the
+    // return value of this initiating function.
+
+    net::async_completion<CompletionToken, void(beast::error_code)> init(token);
+
+    // The helper macro BOOST_ASIO_HANDLER_TYPE converts the completion
+    // token type into a concrete handler type of the correct signature.
+
+    using handler_type = BOOST_ASIO_HANDLER_TYPE(CompletionToken, void(beast::error_code));
+
+    // The class template `async_base` holds the caller's completion
+    // handler for us, and provides all of the boilerplate for forwarding
+    // the associated allocator and associated executor from the caller's
+    // handler to our operation. It also maintains a `net::executor_work_guard`
+    // for the executor associated with the stream. This work guard is
+    // inexpensive, and prevents the execution context from running out
+    // of work. It is usually necessary although rarely it can be skipped
+    // depending on the operation (this echo example needs it because it
+    // performs more than one asynchronous operation in a row).
+    // We declare this type alias to make the code easier to read.
+
+    using base_type = beast::async_base<
+        handler_type, /*< The type of the completion handler obtained from the token >*/
+        beast::executor_type<AsyncStream> /*< The type of executor used by the stream to dispatch asynchronous operations >*/
+    >;
+
+    // This nested class implements the echo composed operation as a
+    // stateful completion handler. We derive from `async_base` to
+    // take care of boilerplate and we derived from asio::coroutine to
+    // allow the reenter and yield keywords to work.
+
+    struct echo_op : base_type, boost::asio::coroutine
+    {
+        AsyncStream& stream_;
+        DynamicBuffer& buffer_;
+
+        echo_op(
+            AsyncStream& stream,
+            DynamicBuffer& buffer,
+            handler_type&& handler)
+            : base_type(
+                std::move(handler), /*< The `async_base` helper takes ownership of the handler, >*/
+                stream.get_executor()) /*<  and also needs to know which executor to use. >*/
+            , stream_(stream)
+            , buffer_(buffer)
+        {
+            // Launch the operation directly from the constructor. We
+            // pass `false` for `cont` to indicate that the calling
+            // thread does not represent a continuation of our
+            // asynchronous control flow.
+            (*this)({}, 0, false);
+        }
+
+        // If a newline is present in the buffer sequence, this function returns
+        // the number of characters from the beginning of the buffer up to the
+        // newline, including the newline character. Otherwise it returns zero.
+
+        std::size_t
+        find_newline(typename DynamicBuffer::const_buffers_type const& buffers)
+        {
+            // The `buffers_iterator` class template provides random-access
+            // iterators into a buffer sequence. Use the standard algorithm
+            // to look for the new line if it exists.
+
+            auto begin = net::buffers_iterator<
+                typename DynamicBuffer::const_buffers_type>::begin(buffers);
+            auto end =   net::buffers_iterator<
+                typename DynamicBuffer::const_buffers_type>::end(buffers);
+            auto result = std::find(begin, end, '\n');
+
+            if(result == end)
+                return 0; // not found
+
+            return result + 1 - begin;
+        }
+
+        // This is the entry point of our completion handler. Every time an
+        // asynchronous operation completes, this function will be invoked.
+
+        void
+        operator()(
+            beast::error_code ec,
+            std::size_t bytes_transferred = 0,
+            bool cont = true) /*< Second and subsequent invocations will seee `cont=true`. */
+        {
+            // The `reenter` keyword transfers control to the last
+            // yield point, or to the beginning of the scope if
+            // this is the first time.
+
+            reenter(*this)
+            {
+                for(;;)
+                {
+                    std::size_t pos;
+
+                    // Search for a newline in the readable bytes of the buffer
+                    pos = find_newline(buffer_.data());
+
+                    // If we don't have the newline, then read more
+                    if(pos == 0)
+                    {
+                        std::size_t bytes_to_read;
+
+                        // Determine the number of bytes to read,
+                        // using available capacity in the buffer first.
+
+                        bytes_to_read = std::min<std::size_t>(
+                              std::max<std::size_t>(512,                // under 512 is too little,
+                                  buffer_.capacity() - buffer_.size()),
+                              std::min<std::size_t>(65536,              // and over 65536 is too much.
+                                  buffer_.max_size() - buffer_.size()));
+
+                        // Read some data into our dynamic buffer_. We transfer
+                        // ownership of the composed operation by using the
+                        // `std::move(*this)` idiom. The `yield` keyword causes
+                        // the function to return immediately after the initiating
+                        // function returns.
+
+                        yield stream_.async_read_some(
+                            buffer_.prepare(bytes_to_read), std::move(*this));
+
+                        // After the `async_read_some` completes, control is
+                        // transferred to this line by the `reenter` keyword.
+
+                        // Move the bytes read from the writable area to the
+                        // readable area.
+
+                        buffer_.commit(bytes_transferred);
+
+                        // If an error occurs, deliver it to the caller's completion handler.
+                        if(ec)
+                            break;
+
+                        // Keep looping until we get the newline
+                        continue;
+                    }
+
+                    // We have our newline, so send the first `pos` bytes of the
+                    // buffers. The function `buffers_prefix` returns the front part
+                    // of the buffers we want.
+
+                    yield net::async_write(stream_,
+                        beast::buffers_prefix(pos, buffer_.data()), std::move(*this));
+
+                    // After the `async_write` completes, our completion handler will
+                    // be invoked with the error and the number of bytes transferred,
+                    // and the `reenter` statement above will cause control to jump
+                    // to the following line. The variable `pos` is no longer valid
+                    // (remember that we returned from the function using `yield` above)
+                    // but we can use `bytes_transferred` to know how much of the buffer
+                    // to consume. With "real" coroutines this will be easier and more
+                    // natural.
+
+                    buffer_.consume(bytes_transferred);
+
+                    // The loop terminates here, and we will either deliver a
+                    // successful result or an error to the caller's completion handler.
+
+                    break;
+                }
+
+                // When a composed operation completes immediately, it must not
+                // directly invoke the completion handler otherwise it could
+                // lead to unfairness, starvation, or stack overflow. Therefore,
+                // if cont == false (meaning, that the call stack still includes
+                // the frame of the initiating function) then we need to use
+                // `net::post` to cause us to be called again after the initiating
+                // function. The function `async_base::invoke` takes care of
+                // calling the final completion handler, using post if the
+                // first argument is false, otherwise invoking it directly.
+
+                this->complete(cont, ec);
+            }
+        }
+    };
+
+    // Create the composed operation and launch it. This is a constructor
+    // call followed by invocation of operator(). We use BOOST_ASIO_HANDLER_TYPE
+    // to convert the completion token into the correct handler type,
+    // allowing user-defined specializations of the async_result template
+    // to be used.
+
+    echo_op(stream, buffer, std::move(init.completion_handler));
+
+    // This hook lets the caller see a return value when appropriate.
+    // For example this might return std::future<error_code> if
+    // CompletionToken is net::use_future, or this might
+    // return an error code if CompletionToken specifies a coroutine.
+
+    return init.result.get();
+}
+
+// Including this file undefines the macros used by the stackless fauxroutines.
+#include <boost/asio/unyield.hpp>
+
+//]
+
+struct move_only_handler
+{
+    move_only_handler() = default;
+    move_only_handler(move_only_handler&&) = default;
+    move_only_handler(move_only_handler const&) = delete;
+
+    void operator()(beast::error_code ec)
+    {
+        if(ec)
+            std::cerr << ": " << ec.message() << std::endl;
+    }
+};
+
+int main(int argc, char** argv)
+{
+    if(argc != 3)
+    {
+        std::cerr
+        << "Usage: echo-op <address> <port>\n"
+        << "Example:\n"
+        << "    echo-op 0.0.0.0 8080\n";
+        return EXIT_FAILURE;
+    }
+
+    namespace net = boost::asio;
+    auto const address{net::ip::make_address(argv[1])};
+    auto const port{static_cast<unsigned short>(std::atoi(argv[2]))};
+
+    using endpoint_type = net::ip::tcp::endpoint;
+
+    // Create a listening socket, accept a connection, perform
+    // the echo, and then shut everything down and exit.
+    net::io_context ioc;
+    net::ip::tcp::acceptor acceptor{ioc};
+    endpoint_type ep{address, port};
+    acceptor.open(ep.protocol());
+    acceptor.set_option(net::socket_base::reuse_address(true));
+    acceptor.bind(ep);
+    acceptor.listen();
+    auto sock = acceptor.accept();
+    beast::flat_buffer buffer;
+    async_echo(sock, buffer, move_only_handler{});
+    ioc.run();
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/CMakeLists.txt b/src/boost/libs/beast/example/http/CMakeLists.txt
new file mode 100644
index 000000000..d38604dd0
--- /dev/null
+++ b/src/boost/libs/beast/example/http/CMakeLists.txt
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (client)
+add_subdirectory (server)
diff --git a/src/boost/libs/beast/example/http/Jamfile b/src/boost/libs/beast/example/http/Jamfile
new file mode 100644
index 000000000..32f2c5144
--- /dev/null
+++ b/src/boost/libs/beast/example/http/Jamfile
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project client ;
+build-project server ;
diff --git a/src/boost/libs/beast/example/http/client/CMakeLists.txt b/src/boost/libs/beast/example/http/client/CMakeLists.txt
new file mode 100644
index 000000000..0c9d18156
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/CMakeLists.txt
@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (async)
+add_subdirectory (coro)
+add_subdirectory (crawl)
+add_subdirectory (sync)
+
+if (OPENSSL_FOUND)
+    add_subdirectory (async-ssl)
+    add_subdirectory (async-ssl-system-executor)
+    add_subdirectory (coro-ssl)
+    add_subdirectory (sync-ssl)
+endif()
diff --git a/src/boost/libs/beast/example/http/client/Jamfile b/src/boost/libs/beast/example/http/client/Jamfile
new file mode 100644
index 000000000..11dd77ee5
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/Jamfile
@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project async ;
+build-project coro ;
+build-project crawl ;
+build-project sync ;
+
+# SSL
+build-project async-ssl ;
+build-project coro-ssl ;
+build-project sync-ssl ;
diff --git a/src/boost/libs/beast/example/http/client/async-ssl-system-executor/CMakeLists.txt b/src/boost/libs/beast/example/http/client/async-ssl-system-executor/CMakeLists.txt
new file mode 100644
index 000000000..049a2fea9
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async-ssl-system-executor/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/client/async-ssl-system-executor "/")
+
+    add_executable (http-client-async-ssl-system-executor
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        http_client_async_ssl_system_executor.cpp
+    )
+
+    set_property(TARGET http-client-async-ssl-system-executor PROPERTY FOLDER "example-http-client")
+
+    target_link_libraries (http-client-async-ssl-system-executor
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/client/async-ssl-system-executor/Jamfile b/src/boost/libs/beast/example/http/client/async-ssl-system-executor/Jamfile
new file mode 100644
index 000000000..732da8631
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async-ssl-system-executor/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-client-async-ssl-system-executor :
+    http_client_async_ssl_system_executor.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/client/async-ssl-system-executor/http_client_async_ssl_system_executor.cpp b/src/boost/libs/beast/example/http/client/async-ssl-system-executor/http_client_async_ssl_system_executor.cpp
new file mode 100644
index 000000000..19ca0be69
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async-ssl-system-executor/http_client_async_ssl_system_executor.cpp
@@ -0,0 +1,246 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL client, asynchronous, using system_executor
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/system_executor.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Performs an HTTP GET and prints the response
+class session : public std::enable_shared_from_this<session>
+{
+    tcp::resolver resolver_;
+    beast::ssl_stream<beast::tcp_stream> stream_;
+    beast::flat_buffer buffer_; // (Must persist between reads)
+    http::request<http::empty_body> req_;
+    http::response<http::string_body> res_;
+
+    // Objects are constructed with a strand to
+    // ensure that handlers do not execute concurrently.
+    session(net::strand<net::system_executor> strand, ssl::context& ctx)
+        : resolver_(strand)
+        , stream_(strand, ctx)
+    {
+    }
+
+public:
+    // Delegate construction to a prive constructor to be able to use
+    // the same strand for both I/O object.
+    explicit
+    session(ssl::context& ctx)
+        : session(net::make_strand(net::system_executor()), ctx)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run(
+        char const* host,
+        char const* port,
+        char const* target,
+        int version)
+    {
+        // Set SNI Hostname (many hosts need this to handshake successfully)
+        if(! SSL_set_tlsext_host_name(stream_.native_handle(), host))
+        {
+            beast::error_code ec{static_cast<int>(::ERR_get_error()), net::error::get_ssl_category()};
+            std::cerr << ec.message() << "\n";
+            return;
+        }
+
+        // Set up an HTTP GET request message
+        req_.version(version);
+        req_.method(http::verb::get);
+        req_.target(target);
+        req_.set(http::field::host, host);
+        req_.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            port,
+            beast::bind_front_handler(
+                &session::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+            return fail(ec, "resolve");
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Make the connection on the IP address we get from a lookup
+        beast::get_lowest_layer(stream_).async_connect(
+            results,
+            beast::bind_front_handler(
+                &session::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type)
+    {
+        if(ec)
+            return fail(ec, "connect");
+
+        // Perform the SSL handshake
+        stream_.async_handshake(
+            ssl::stream_base::client,
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Send the HTTP request to the remote host
+        http::async_write(stream_, req_,
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Receive the HTTP response
+        http::async_read(stream_, buffer_, res_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Write the message to standard out
+        std::cout << res_ << std::endl;
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Gracefully close the stream
+        stream_.async_shutdown(
+            beast::bind_front_handler(
+                &session::on_shutdown,
+                shared_from_this()));
+    }
+
+    void
+    on_shutdown(beast::error_code ec)
+    {
+        if(ec == net::error::eof)
+        {
+            // Rationale:
+            // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
+            ec = {};
+        }
+        if(ec)
+            return fail(ec, "shutdown");
+
+        // If we get here then the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4 && argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-client-async-ssl-system-executor <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+            "Example:\n" <<
+            "    http-client-async-ssl-system-executor www.example.com 443 /\n" <<
+            "    http-client-async-ssl-system-executor www.example.com 443 / 1.0\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const target = argv[3];
+    int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12_client};
+
+    // This holds the root certificate used for verification
+    load_root_certificates(ctx);
+
+    // Verify the remote server's certificate
+    ctx.set_verify_mode(ssl::verify_peer);
+
+    // Launch the asynchronous operation
+    std::make_shared<session>(ctx)->run(host, port, target, version);
+
+
+    // The async operations will run on the system_executor.
+    // Because the main thread has nothing to do in this example, we just wait
+    // for the system_executor to run out of work.
+    net::system_executor().context().join();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/async-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/client/async-ssl/CMakeLists.txt
new file mode 100644
index 000000000..a64fbf618
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/client/async-ssl "/")
+
+    add_executable (http-client-async-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        http_client_async_ssl.cpp
+    )
+
+    set_property(TARGET http-client-async-ssl PROPERTY FOLDER "example-http-client")
+
+    target_link_libraries (http-client-async-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/client/async-ssl/Jamfile b/src/boost/libs/beast/example/http/client/async-ssl/Jamfile
new file mode 100644
index 000000000..c11bcb072
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-client-async-ssl :
+    http_client_async_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/client/async-ssl/http_client_async_ssl.cpp b/src/boost/libs/beast/example/http/client/async-ssl/http_client_async_ssl.cpp
new file mode 100644
index 000000000..2a5f95bd9
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async-ssl/http_client_async_ssl.cpp
@@ -0,0 +1,244 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL client, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/strand.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Performs an HTTP GET and prints the response
+class session : public std::enable_shared_from_this<session>
+{
+    tcp::resolver resolver_;
+    beast::ssl_stream<beast::tcp_stream> stream_;
+    beast::flat_buffer buffer_; // (Must persist between reads)
+    http::request<http::empty_body> req_;
+    http::response<http::string_body> res_;
+
+public:
+    explicit
+    session(
+        net::executor ex,
+        ssl::context& ctx)
+    : resolver_(ex)
+    , stream_(ex, ctx)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run(
+        char const* host,
+        char const* port,
+        char const* target,
+        int version)
+    {
+        // Set SNI Hostname (many hosts need this to handshake successfully)
+        if(! SSL_set_tlsext_host_name(stream_.native_handle(), host))
+        {
+            beast::error_code ec{static_cast<int>(::ERR_get_error()), net::error::get_ssl_category()};
+            std::cerr << ec.message() << "\n";
+            return;
+        }
+
+        // Set up an HTTP GET request message
+        req_.version(version);
+        req_.method(http::verb::get);
+        req_.target(target);
+        req_.set(http::field::host, host);
+        req_.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            port,
+            beast::bind_front_handler(
+                &session::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+            return fail(ec, "resolve");
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Make the connection on the IP address we get from a lookup
+        beast::get_lowest_layer(stream_).async_connect(
+            results,
+            beast::bind_front_handler(
+                &session::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type)
+    {
+        if(ec)
+            return fail(ec, "connect");
+
+        // Perform the SSL handshake
+        stream_.async_handshake(
+            ssl::stream_base::client,
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Send the HTTP request to the remote host
+        http::async_write(stream_, req_,
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Receive the HTTP response
+        http::async_read(stream_, buffer_, res_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Write the message to standard out
+        std::cout << res_ << std::endl;
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Gracefully close the stream
+        stream_.async_shutdown(
+            beast::bind_front_handler(
+                &session::on_shutdown,
+                shared_from_this()));
+    }
+
+    void
+    on_shutdown(beast::error_code ec)
+    {
+        if(ec == net::error::eof)
+        {
+            // Rationale:
+            // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
+            ec = {};
+        }
+        if(ec)
+            return fail(ec, "shutdown");
+
+        // If we get here then the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4 && argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-client-async-ssl <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+            "Example:\n" <<
+            "    http-client-async-ssl www.example.com 443 /\n" <<
+            "    http-client-async-ssl www.example.com 443 / 1.0\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const target = argv[3];
+    int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12_client};
+
+    // This holds the root certificate used for verification
+    load_root_certificates(ctx);
+
+    // Verify the remote server's certificate
+    ctx.set_verify_mode(ssl::verify_peer);
+
+    // Launch the asynchronous operation
+    // The session is constructed with a strand to
+    // ensure that handlers do not execute concurrently.
+    std::make_shared<session>(
+        net::make_strand(ioc),
+        ctx
+        )->run(host, port, target, version);
+
+    // Run the I/O service. The call will return when
+    // the get operation is complete.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/async/CMakeLists.txt b/src/boost/libs/beast/example/http/client/async/CMakeLists.txt
new file mode 100644
index 000000000..3847ce610
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/client/async "/")
+
+add_executable (http-client-async
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_client_async.cpp
+)
+
+target_link_libraries(http-client-async
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-client-async PROPERTY FOLDER "example-http-client")
diff --git a/src/boost/libs/beast/example/http/client/async/Jamfile b/src/boost/libs/beast/example/http/client/async/Jamfile
new file mode 100644
index 000000000..abc9d4d61
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-client-async :
+    http_client_async.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/client/async/http_client_async.cpp b/src/boost/libs/beast/example/http/client/async/http_client_async.cpp
new file mode 100644
index 000000000..f451df51c
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/async/http_client_async.cpp
@@ -0,0 +1,189 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP client, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/strand.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Performs an HTTP GET and prints the response
+class session : public std::enable_shared_from_this<session>
+{
+    tcp::resolver resolver_;
+    beast::tcp_stream stream_;
+    beast::flat_buffer buffer_; // (Must persist between reads)
+    http::request<http::empty_body> req_;
+    http::response<http::string_body> res_;
+
+public:
+    // Objects are constructed with a strand to
+    // ensure that handlers do not execute concurrently.
+    explicit
+    session(net::io_context& ioc)
+        : resolver_(net::make_strand(ioc))
+        , stream_(net::make_strand(ioc))
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run(
+        char const* host,
+        char const* port,
+        char const* target,
+        int version)
+    {
+        // Set up an HTTP GET request message
+        req_.version(version);
+        req_.method(http::verb::get);
+        req_.target(target);
+        req_.set(http::field::host, host);
+        req_.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            port,
+            beast::bind_front_handler(
+                &session::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+            return fail(ec, "resolve");
+
+        // Set a timeout on the operation
+        stream_.expires_after(std::chrono::seconds(30));
+
+        // Make the connection on the IP address we get from a lookup
+        stream_.async_connect(
+            results,
+            beast::bind_front_handler(
+                &session::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type)
+    {
+        if(ec)
+            return fail(ec, "connect");
+
+        // Set a timeout on the operation
+        stream_.expires_after(std::chrono::seconds(30));
+
+        // Send the HTTP request to the remote host
+        http::async_write(stream_, req_,
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+        
+        // Receive the HTTP response
+        http::async_read(stream_, buffer_, res_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Write the message to standard out
+        std::cout << res_ << std::endl;
+
+        // Gracefully close the socket
+        stream_.socket().shutdown(tcp::socket::shutdown_both, ec);
+
+        // not_connected happens sometimes so don't bother reporting it.
+        if(ec && ec != beast::errc::not_connected)
+            return fail(ec, "shutdown");
+
+        // If we get here then the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4 && argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-client-async <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+            "Example:\n" <<
+            "    http-client-async www.example.com 80 /\n" <<
+            "    http-client-async www.example.com 80 / 1.0\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const target = argv[3];
+    int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // Launch the asynchronous operation
+    std::make_shared<session>(ioc)->run(host, port, target, version);
+
+    // Run the I/O service. The call will return when
+    // the get operation is complete.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/coro-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/client/coro-ssl/CMakeLists.txt
new file mode 100644
index 000000000..54fe3ae25
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/coro-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/client/coro-ssl "/")
+
+    add_executable (http-client-coro-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        http_client_coro_ssl.cpp
+    )
+
+    set_property(TARGET http-client-coro-ssl PROPERTY FOLDER "example-http-client")
+
+    target_link_libraries (http-client-coro-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/client/coro-ssl/Jamfile b/src/boost/libs/beast/example/http/client/coro-ssl/Jamfile
new file mode 100644
index 000000000..f2c126c59
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/coro-ssl/Jamfile
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-client-coro-ssl :
+    http_client_coro_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/http/client/coro-ssl/http_client_coro_ssl.cpp b/src/boost/libs/beast/example/http/client/coro-ssl/http_client_coro_ssl.cpp
new file mode 100644
index 000000000..8454db908
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/coro-ssl/http_client_coro_ssl.cpp
@@ -0,0 +1,180 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL client, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/spawn.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Performs an HTTP GET and prints the response
+void
+do_session(
+    std::string const& host,
+    std::string const& port,
+    std::string const& target,
+    int version,
+    net::io_context& ioc,
+    ssl::context& ctx,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // These objects perform our I/O
+    tcp::resolver resolver(ioc);
+    beast::ssl_stream<beast::tcp_stream> stream(ioc, ctx);
+
+    // Set SNI Hostname (many hosts need this to handshake successfully)
+    if(! SSL_set_tlsext_host_name(stream.native_handle(), host.c_str()))
+    {
+        ec.assign(static_cast<int>(::ERR_get_error()), net::error::get_ssl_category());
+        std::cerr << ec.message() << "\n";
+        return;
+    }
+
+    // Look up the domain name
+    auto const results = resolver.async_resolve(host, port, yield[ec]);
+    if(ec)
+        return fail(ec, "resolve");
+
+    // Set the timeout.
+    beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+    // Make the connection on the IP address we get from a lookup
+    get_lowest_layer(stream).async_connect(results, yield[ec]);
+    if(ec)
+        return fail(ec, "connect");
+
+    // Set the timeout.
+    beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+    // Perform the SSL handshake
+    stream.async_handshake(ssl::stream_base::client, yield[ec]);
+    if(ec)
+        return fail(ec, "handshake");
+
+    // Set up an HTTP GET request message
+    http::request<http::string_body> req{http::verb::get, target, version};
+    req.set(http::field::host, host);
+    req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+    // Set the timeout.
+    beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+    // Send the HTTP request to the remote host
+    http::async_write(stream, req, yield[ec]);
+    if(ec)
+        return fail(ec, "write");
+
+    // This buffer is used for reading and must be persisted
+    beast::flat_buffer b;
+
+    // Declare a container to hold the response
+    http::response<http::dynamic_body> res;
+
+    // Receive the HTTP response
+    http::async_read(stream, b, res, yield[ec]);
+    if(ec)
+        return fail(ec, "read");
+
+    // Write the message to standard out
+    std::cout << res << std::endl;
+
+    // Set the timeout.
+    beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+    // Gracefully close the stream
+    stream.async_shutdown(yield[ec]);
+    if(ec == net::error::eof)
+    {
+        // Rationale:
+        // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
+        ec = {};
+    }
+    if(ec)
+        return fail(ec, "shutdown");
+
+    // If we get here then the connection is closed gracefully
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4 && argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-client-coro-ssl <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+            "Example:\n" <<
+            "    http-client-coro-ssl www.example.com 443 /\n" <<
+            "    http-client-coro-ssl www.example.com 443 / 1.0\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const target = argv[3];
+    int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12_client};
+
+    // This holds the root certificate used for verification
+    load_root_certificates(ctx);
+
+    // Verify the remote server's certificate
+    ctx.set_verify_mode(ssl::verify_peer);
+
+    // Launch the asynchronous operation
+    boost::asio::spawn(ioc, std::bind(
+        &do_session,
+        std::string(host),
+        std::string(port),
+        std::string(target),
+        version,
+        std::ref(ioc),
+        std::ref(ctx),
+        std::placeholders::_1));
+
+    // Run the I/O service. The call will return when
+    // the get operation is complete.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/coro/CMakeLists.txt b/src/boost/libs/beast/example/http/client/coro/CMakeLists.txt
new file mode 100644
index 000000000..1a791ab1b
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/coro/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/client/coro "/")
+
+add_executable (http-client-coro
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_client_coro.cpp
+    )
+
+target_link_libraries(http-client-coro
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-client-coro PROPERTY FOLDER "example-http-client")
diff --git a/src/boost/libs/beast/example/http/client/coro/Jamfile b/src/boost/libs/beast/example/http/client/coro/Jamfile
new file mode 100644
index 000000000..25ebe2fda
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/coro/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-client-coro :
+    http_client_coro.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/http/client/coro/http_client_coro.cpp b/src/boost/libs/beast/example/http/client/coro/http_client_coro.cpp
new file mode 100644
index 000000000..274ec05e0
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/coro/http_client_coro.cpp
@@ -0,0 +1,144 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP client, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/spawn.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Performs an HTTP GET and prints the response
+void
+do_session(
+    std::string const& host,
+    std::string const& port,
+    std::string const& target,
+    int version,
+    net::io_context& ioc,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // These objects perform our I/O
+    tcp::resolver resolver(ioc);
+    beast::tcp_stream stream(ioc);
+
+    // Look up the domain name
+    auto const results = resolver.async_resolve(host, port, yield[ec]);
+    if(ec)
+        return fail(ec, "resolve");
+
+    // Set the timeout.
+    stream.expires_after(std::chrono::seconds(30));
+
+    // Make the connection on the IP address we get from a lookup
+    stream.async_connect(results, yield[ec]);
+    if(ec)
+        return fail(ec, "connect");
+
+    // Set up an HTTP GET request message
+    http::request<http::string_body> req{http::verb::get, target, version};
+    req.set(http::field::host, host);
+    req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+    // Set the timeout.
+    stream.expires_after(std::chrono::seconds(30));
+
+    // Send the HTTP request to the remote host
+    http::async_write(stream, req, yield[ec]);
+    if(ec)
+        return fail(ec, "write");
+
+    // This buffer is used for reading and must be persisted
+    beast::flat_buffer b;
+
+    // Declare a container to hold the response
+    http::response<http::dynamic_body> res;
+
+    // Receive the HTTP response
+    http::async_read(stream, b, res, yield[ec]);
+    if(ec)
+        return fail(ec, "read");
+
+    // Write the message to standard out
+    std::cout << res << std::endl;
+
+    // Gracefully close the socket
+    stream.socket().shutdown(tcp::socket::shutdown_both, ec);
+
+    // not_connected happens sometimes
+    // so don't bother reporting it.
+    //
+    if(ec && ec != beast::errc::not_connected)
+        return fail(ec, "shutdown");
+
+    // If we get here then the connection is closed gracefully
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4 && argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-client-coro <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+            "Example:\n" <<
+            "    http-client-coro www.example.com 80 /\n" <<
+            "    http-client-coro www.example.com 80 / 1.0\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const target = argv[3];
+    int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // Launch the asynchronous operation
+    boost::asio::spawn(ioc, std::bind(
+        &do_session,
+        std::string(host),
+        std::string(port),
+        std::string(target),
+        version,
+        std::ref(ioc),
+        std::placeholders::_1));
+
+    // Run the I/O service. The call will return when
+    // the get operation is complete.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/crawl/CMakeLists.txt b/src/boost/libs/beast/example/http/client/crawl/CMakeLists.txt
new file mode 100644
index 000000000..b502c7d70
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/crawl/CMakeLists.txt
@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/client/crawl "/")
+
+add_executable (http-crawl
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    urls_large_data.hpp
+    urls_large_data.cpp
+    http_crawl.cpp
+)
+
+target_link_libraries(http-crawl
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-crawl PROPERTY FOLDER "example-http-client")
+
diff --git a/src/boost/libs/beast/example/http/client/crawl/Jamfile b/src/boost/libs/beast/example/http/client/crawl/Jamfile
new file mode 100644
index 000000000..8f94c9675
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/crawl/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-crawl :
+    http_crawl.cpp
+    urls_large_data.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/client/crawl/http_crawl.cpp b/src/boost/libs/beast/example/http/client/crawl/http_crawl.cpp
new file mode 100644
index 000000000..c303518d0
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/crawl/http_crawl.cpp
@@ -0,0 +1,409 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP crawl (asynchronous)
+//
+//------------------------------------------------------------------------------
+
+#include "urls_large_data.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/bind_executor.hpp>
+#include <boost/asio/connect.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/post.hpp>
+#include <boost/asio/strand.hpp>
+#include <atomic>
+#include <chrono>
+#include <cstdlib>
+#include <functional>
+#include <iomanip>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+#include <map>
+
+namespace chrono = std::chrono;         // from <chrono>
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = net::ip::tcp;               // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// This structure aggregates statistics on all the sites
+class crawl_report
+{
+    net::io_context& ioc_;
+    net::strand<
+        net::io_context::executor_type> strand_;
+    std::atomic<std::size_t> index_;
+    std::vector<char const*> const& hosts_;
+    std::size_t count_ = 0;
+
+public:
+    crawl_report(net::io_context& ioc)
+        : ioc_(ioc)
+        , strand_(ioc_.get_executor())
+        , index_(0)
+        , hosts_(urls_large_data())
+    {
+    }
+
+    // Run an aggregation function on the strand.
+    // This allows synchronization without a mutex.
+    template<class F>
+    void
+    aggregate(F const& f)
+    {
+        net::post(
+            strand_,
+            [&, f]
+            {
+                f(*this);
+                if(count_ % 100 == 0)
+                {
+                    std::cerr <<
+                        "Progress: " << count_ << " of " << hosts_.size() << "\n";
+                    //std::cerr << *this;
+                }
+                ++count_;
+            });
+    }
+
+    // Returns the next host to check
+    char const*
+    get_host()
+    {
+        auto const n = index_++;
+        if(n >= hosts_.size())
+            return nullptr;
+        return hosts_[n];
+    }
+
+    // Counts the number of timer failures
+    std::size_t timer_failures = 0;
+
+    // Counts the number of name resolution failures
+    std::size_t resolve_failures = 0;
+
+    // Counts the number of connection failures
+    std::size_t connect_failures = 0;
+
+    // Counts the number of write failures
+    std::size_t write_failures = 0;
+
+    // Counts the number of read failures
+    std::size_t read_failures = 0;
+
+    // Counts the number of success reads
+    std::size_t success = 0;
+
+    // Counts the number received of each status code
+    std::map<unsigned, std::size_t> status_codes;
+};
+
+std::ostream&
+operator<<(std::ostream& os, crawl_report const& report)
+{
+    // Print the report
+    os <<
+        "Crawl report\n" <<
+        "   Failure counts\n" <<
+        "       Timer   : " << report.timer_failures << "\n" <<
+        "       Resolve : " << report.resolve_failures << "\n" <<
+        "       Connect : " << report.connect_failures << "\n" <<
+        "       Write   : " << report.write_failures << "\n" <<
+        "       Read    : " << report.read_failures << "\n" <<
+        "       Success : " << report.success << "\n" <<
+        "   Status codes\n"
+        ;
+    for(auto const& result : report.status_codes)
+        os <<
+        "       " << std::setw(3) << result.first << ": " << result.second <<
+                    " (" << http::obsolete_reason(static_cast<http::status>(result.first)) << ")\n";
+    os.flush();
+    return os;
+}
+
+//------------------------------------------------------------------------------
+
+// Performs HTTP GET requests and aggregates the results into a report
+class worker : public std::enable_shared_from_this<worker>
+{
+    enum
+    {
+        // Use a small timeout to keep things lively
+        timeout = 5
+    };
+
+    crawl_report& report_;
+    tcp::resolver resolver_;
+    beast::tcp_stream stream_;
+    beast::flat_buffer buffer_; // (Must persist between reads)
+    http::request<http::empty_body> req_;
+    http::response<http::string_body> res_;
+
+public:
+    worker(worker&&) = default;
+
+    // Resolver and socket require an io_context
+    worker(
+        crawl_report& report,
+        net::io_context& ioc)
+        : report_(report)
+        , resolver_(net::make_strand(ioc))
+        , stream_(net::make_strand(ioc))
+    {
+        // Set up the common fields of the request
+        req_.version(11);
+        req_.method(http::verb::get);
+        req_.target("/");
+        req_.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        do_get_host();
+    }
+
+    void
+    do_get_host()
+    {
+        // Grab another host
+        auto const host = report_.get_host();
+
+        // nullptr means no more work
+        if(! host)
+            return;
+
+        // The Host HTTP field is required
+        req_.set(http::field::host, host);
+
+        // Set up an HTTP GET request message
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            "http",
+            beast::bind_front_handler(
+                &worker::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+        {
+            report_.aggregate(
+            [](crawl_report& rep)
+            {
+                ++rep.resolve_failures;
+            });
+            return do_get_host();
+        }
+
+        // Set a timeout on the operation
+        stream_.expires_after(std::chrono::seconds(10));
+
+        // Make the connection on the IP address we get from a lookup
+        stream_.async_connect(
+            results,
+            beast::bind_front_handler(
+                &worker::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type)
+    {
+        if(ec)
+        {
+            report_.aggregate(
+            [](crawl_report& rep)
+            {
+                ++rep.connect_failures;
+            });
+            return do_get_host();
+        }
+
+        // Set a timeout on the operation
+        stream_.expires_after(std::chrono::seconds(10));
+
+        // Send the HTTP request to the remote host
+        http::async_write(
+            stream_,
+            req_,
+            beast::bind_front_handler(
+                &worker::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+        {
+            report_.aggregate(
+            [](crawl_report& rep)
+            {
+                ++rep.write_failures;
+            });
+            return do_get_host();
+        }
+
+        // Receive the HTTP response
+        res_ = {};
+        http::async_read(
+            stream_,
+            buffer_,
+            res_,
+            beast::bind_front_handler(
+                &worker::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+        {
+            report_.aggregate(
+            [](crawl_report& rep)
+            {
+                ++rep.read_failures;
+            });
+            return do_get_host();
+        }
+
+        auto const code = res_.result_int();
+        report_.aggregate(
+        [code](crawl_report& rep)
+        {
+            ++rep.success;
+            ++rep.status_codes[code];
+        });
+
+        // Gracefully close the socket
+        stream_.socket().shutdown(tcp::socket::shutdown_both, ec);
+        stream_.close();
+
+        // If we get here then the connection is closed gracefully
+
+        do_get_host();
+    }
+};
+
+class timer
+{
+    using clock_type = chrono::system_clock;
+
+    clock_type::time_point when_;
+
+public:
+    using duration = clock_type::duration;
+
+    timer()
+        : when_(clock_type::now())
+    {
+    }
+
+    duration
+    elapsed() const
+    {
+        return clock_type::now() - when_;
+    }
+};
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 2)
+    {
+        std::cerr <<
+            "Usage: http-crawl <threads>\n" <<
+            "Example:\n" <<
+            "    http-crawl 100 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const threads = std::max<int>(1, std::atoi(argv[1]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // The work keeps io_context::run from returning
+    auto work = net::make_work_guard(ioc);
+
+    // The report holds the aggregated statistics
+    crawl_report report{ioc};
+
+    timer t;
+
+    // Create and launch the worker threads.
+    std::vector<std::thread> workers;
+    workers.reserve(threads + 1);
+    for(int i = 0; i < threads; ++i)
+        workers.emplace_back(
+        [&report]
+        {
+            // We use a separate io_context for each worker because
+            // the asio resolver simulates asynchronous operation using
+            // a dedicated worker thread per io_context, and we want to
+            // do a lot of name resolutions in parallel.
+            net::io_context ioc{1};
+            std::make_shared<worker>(report, ioc)->run();
+            ioc.run();
+        });
+
+    // Add another thread to run the main io_context which
+    // is used to aggregate the statistics
+    workers.emplace_back(
+    [&ioc]
+    {
+        ioc.run();
+    });
+
+    // Now block until all threads exit
+    for(std::size_t i = 0; i < workers.size(); ++i)
+    {
+        auto& thread = workers[i];
+
+        // If this is the last thread, reset the
+        // work object so that it can return from run.
+        if(i == workers.size() - 1)
+            work.reset();
+
+        // Wait for the thread to exit
+        thread.join();
+    }
+
+    std::cout <<
+        "Elapsed time:    " << chrono::duration_cast<chrono::seconds>(t.elapsed()).count() << " seconds\n";
+    std::cout << report;
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/crawl/urls_large_data.cpp b/src/boost/libs/beast/example/http/client/crawl/urls_large_data.cpp
new file mode 100644
index 000000000..cee46ee26
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/crawl/urls_large_data.cpp
@@ -0,0 +1,10021 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include "urls_large_data.hpp"
+
+// Data from Alexa top 1 million sites
+// http://s3.amazonaws.com/alexa-static/top-1m.csv.zip
+//
+std::vector<char const*> const&
+urls_large_data()
+{
+    static std::vector <char const*> const urls ({
+        "google.com",
+        "facebook.com",
+        "youtube.com",
+        "yahoo.com",
+        "baidu.com",
+        "wikipedia.org",
+        "qq.com",
+        "linkedin.com",
+        "taobao.com",
+        "twitter.com",
+        "live.com",
+        "amazon.com",
+        "sina.com.cn",
+        "google.co.in",
+        "hao123.com",
+        "blogspot.com",
+        "weibo.com",
+        "wordpress.com",
+        "yandex.ru",
+        "yahoo.co.jp",
+        "tmall.com",
+        "bing.com",
+        "vk.com",
+        "ebay.com",
+        "360.cn",
+        "google.de",
+        "sohu.com",
+        "pinterest.com",
+        "google.co.uk",
+        "ask.com",
+        "google.fr",
+        "msn.com",
+        "163.com",
+        "soso.com",
+        "tumblr.com",
+        "google.co.jp",
+        "instagram.com",
+        "mail.ru",
+        "google.com.br",
+        "microsoft.com",
+        "paypal.com",
+        "google.ru",
+        "xvideos.com",
+        "google.es",
+        "imdb.com",
+        "apple.com",
+        "google.it",
+        "adcash.com",
+        "craigslist.org",
+        "stackoverflow.com",
+        "amazon.co.jp",
+        "neobux.com",
+        "google.com.hk",
+        "imgur.com",
+        "ifeng.com",
+        "cnn.com",
+        "google.com.mx",
+        "xhamster.com",
+        "xinhuanet.com",
+        "gmw.cn",
+        "reddit.com",
+        "bbc.co.uk",
+        "blogger.com",
+        "google.ca",
+        "fc2.com",
+        "vube.com",
+        "go.com",
+        "akamaihd.net",
+        "alipay.com",
+        "about.com",
+        "people.com.cn",
+        "t.co",
+        "googleusercontent.com",
+        "wordpress.org",
+        "odnoklassniki.ru",
+        "alibaba.com",
+        "google.com.tr",
+        "aliexpress.com",
+        "youku.com",
+        "conduit.com",
+        "huffingtonpost.com",
+        "godaddy.com",
+        "flickr.com",
+        "pornhub.com",
+        "google.com.au",
+        "amazon.de",
+        "blogspot.in",
+        "kickass.to",
+        "ebay.de",
+        "netflix.com",
+        "google.pl",
+        "thepiratebay.se",
+        "bp.blogspot.com",
+        "adobe.com",
+        "dailymotion.com",
+        "china.com",
+        "vimeo.com",
+        "dailymail.co.uk",
+        "cnet.com",
+        "rakuten.co.jp",
+        "espn.go.com",
+        "ku6.com",
+        "ebay.co.uk",
+        "themeforest.net",
+        "xnxx.com",
+        "livejasmin.com",
+        "indiatimes.com",
+        "aol.com",
+        "redtube.com",
+        "dropbox.com",
+        "amazonaws.com",
+        "uol.com.br",
+        "weather.com",
+        "m2newmedia.com",
+        "amazon.co.uk",
+        "google.com.ar",
+        "google.com.sa",
+        "pixnet.net",
+        "nytimes.com",
+        "slideshare.net",
+        "youporn.com",
+        "google.com.eg",
+        "buzzfeed.com",
+        "wikimedia.org",
+        "booking.com",
+        "livejournal.com",
+        "globo.com",
+        "fiverr.com",
+        "adf.ly",
+        "secureserver.net",
+        "mozilla.org",
+        "google.com.pk",
+        "google.com.tw",
+        "google.nl",
+        "yelp.com",
+        "sogou.com",
+        "ameblo.jp",
+        "directrev.com",
+        "clkmon.com",
+        "hootsuite.com",
+        "deviantart.com",
+        "blogfa.com",
+        "wikia.com",
+        "outbrain.com",
+        "flipkart.com",
+        "wikihow.com",
+        "etsy.com",
+        "google.co.th",
+        "soundcloud.com",
+        "google.co.za",
+        "avg.com",
+        "w3schools.com",
+        "theguardian.com",
+        "stumbleupon.com",
+        "espncricinfo.com",
+        "livedoor.com",
+        "forbes.com",
+        "archive.org",
+        "4shared.com",
+        "foxnews.com",
+        "files.wordpress.com",
+        "answers.com",
+        "bankofamerica.com",
+        "chase.com",
+        "google.co.ve",
+        "mediafire.com",
+        "torrentz.eu",
+        "badoo.com",
+        "salesforce.com",
+        "aweber.com",
+        "sourceforge.net",
+        "bbc.com",
+        "addthis.com",
+        "liveinternet.ru",
+        "china.com.cn",
+        "indeed.com",
+        "reference.com",
+        "github.com",
+        "skype.com",
+        "hostgator.com",
+        "google.gr",
+        "bet365.com",
+        "spiegel.de",
+        "ask.fm",
+        "so.com",
+        "statcounter.com",
+        "gameforge.com",
+        "onet.pl",
+        "naver.com",
+        "google.com.co",
+        "developunit.info",
+        "google.com.vn",
+        "google.co.id",
+        "nicovideo.jp",
+        "shutterstock.com",
+        "walmart.com",
+        "google.be",
+        "mailchimp.com",
+        "softonic.com",
+        "stackexchange.com",
+        "google.com.ng",
+        "google.com.ua",
+        "popads.net",
+        "allegro.pl",
+        "gamer.com.tw",
+        "wordreference.com",
+        "wellsfargo.com",
+        "loading-delivery1.com",
+        "zillow.com",
+        "tripadvisor.com",
+        "quikr.com",
+        "pandora.com",
+        "wsj.com",
+        "goo.ne.jp",
+        "bild.de",
+        "tube8.com",
+        "wix.com",
+        "google.se",
+        "coccoc.com",
+        "google.ro",
+        "suning.com",
+        "photobucket.com",
+        "weebly.com",
+        "tianya.cn",
+        "warriorforum.com",
+        "telegraph.co.uk",
+        "google.dz",
+        "naver.jp",
+        "php.net",
+        "ups.com",
+        "rambler.ru",
+        "zedo.com",
+        "reuters.com",
+        "google.at",
+        "media.tumblr.com",
+        "taringa.net",
+        "google.com.ph",
+        "chinaz.com",
+        "mashable.com",
+        "blogspot.com.es",
+        "hurriyet.com.tr",
+        "google.com.pe",
+        "bleacherreport.com",
+        "gmx.net",
+        "wp.pl",
+        "goodreads.com",
+        "leboncoin.fr",
+        "rutracker.org",
+        "lenta.ru",
+        "babylon.com",
+        "domaintools.com",
+        "sharelive.net",
+        "rediff.com",
+        "google.ch",
+        "comcast.net",
+        "twitch.tv",
+        "avito.ru",
+        "kaskus.co.id",
+        "nbcnews.com",
+        "onclickads.net",
+        "businessinsider.com",
+        "ikea.com",
+        "codecanyon.net",
+        "ndtv.com",
+        "usps.com",
+        "google.cl",
+        "doublepimp.com",
+        "moz.com",
+        "google.com.sg",
+        "usatoday.com",
+        "dmm.co.jp",
+        "amazon.fr",
+        "google.pt",
+        "ucoz.ru",
+        "rt.com",
+        "milliyet.com.tr",
+        "xuite.net",
+        "samsung.com",
+        "fedex.com",
+        "uploaded.net",
+        "pcpop.com",
+        "google.com.bd",
+        "bitly.com",
+        "goodgamestudios.com",
+        "ettoday.net",
+        "baomihua.com",
+        "39.net",
+        "web.de",
+        "rbc.ru",
+        "9gag.com",
+        "disqus.com",
+        "snapdeal.com",
+        "xcar.com.cn",
+        "washingtonpost.com",
+        "bloomberg.com",
+        "scribd.com",
+        "hp.com",
+        "constantcontact.com",
+        "4dsply.com",
+        "gsmarena.com",
+        "intuit.com",
+        "meetup.com",
+        "nih.gov",
+        "americanexpress.com",
+        "ehow.com",
+        "infusionsoft.com",
+        "google.cz",
+        "mercadolivre.com.br",
+        "myntra.com",
+        "varzesh3.com",
+        "mobile01.com",
+        "hardsextube.com",
+        "goal.com",
+        "thefreecamsecret.com",
+        "thefreedictionary.com",
+        "douban.com",
+        "iqiyi.com",
+        "it168.com",
+        "mama.cn",
+        "tmz.com",
+        "time.com",
+        "olx.in",
+        "microsoftonline.com",
+        "hulu.com",
+        "enet.com.cn",
+        "speedtest.net",
+        "orange.fr",
+        "free.fr",
+        "detik.com",
+        "bluehost.com",
+        "libero.it",
+        "histats.com",
+        "webmd.com",
+        "eazel.com",
+        "hudong.com",
+        "extratorrent.cc",
+        "google.co.kr",
+        "chaturbate.com",
+        "huanqiu.com",
+        "cnzz.com",
+        "daum.net",
+        "xing.com",
+        "force.com",
+        "jrj.com.cn",
+        "pchome.net",
+        "cj.com",
+        "youjizz.com",
+        "delta-search.com",
+        "techcrunch.com",
+        "motherless.com",
+        "tinyurl.com",
+        "beeg.com",
+        "kooora.com",
+        "google.cn",
+        "clickbank.com",
+        "yandex.ua",
+        "ad6media.fr",
+        "google.no",
+        "amazon.cn",
+        "zippyshare.com",
+        "acesse.com",
+        "google.co.hu",
+        "google.ae",
+        "hdfcbank.com",
+        "nba.com",
+        "zendesk.com",
+        "blogspot.co.uk",
+        "bestbuy.com",
+        "accuweather.com",
+        "getresponse.com",
+        "repubblica.it",
+        "xywy.com",
+        "ci123.com",
+        "ebay.in",
+        "in.com",
+        "ign.com",
+        "groupon.com",
+        "yesky.com",
+        "elpais.com",
+        "marca.com",
+        "kwejk.pl",
+        "caijing.com.cn",
+        "google.ie",
+        "cloudfront.net",
+        "intoday.in",
+        "wideinfo.org",
+        "pof.com",
+        "kakaku.com",
+        "bitauto.com",
+        "life.com.tw",
+        "xe.com",
+        "goo.gl",
+        "google.az",
+        "feedly.com",
+        "tagged.com",
+        "amazon.in",
+        "list-manage.com",
+        "w3.org",
+        "quora.com",
+        "ixxx.com",
+        "mysearchdial.com",
+        "dell.com",
+        "seznam.cz",
+        "t-online.de",
+        "plugrush.com",
+        "nydailynews.com",
+        "okcupid.com",
+        "istockphoto.com",
+        "snapdo.com",
+        "abcnews.go.com",
+        "target.com",
+        "latimes.com",
+        "mywebsearch.com",
+        "joomla.org",
+        "odesk.com",
+        "surveymonkey.com",
+        "elmundo.es",
+        "siteadvisor.com",
+        "aili.com",
+        "uimserv.net",
+        "ebay.com.au",
+        "doubleclick.com",
+        "zeobit.com",
+        "google.co.il",
+        "fbcdn.net",
+        "ero-advertising.com",
+        "issuu.com",
+        "naukri.com",
+        "gazeta.pl",
+        "ck101.com",
+        "udn.com",
+        "google.dk",
+        "ce.cn",
+        "capitalone.com",
+        "att.com",
+        "drudgereport.com",
+        "blackhatworld.com",
+        "adrotator.se",
+        "retailmenot.com",
+        "justdial.com",
+        "icicibank.com",
+        "likes.com",
+        "elance.com",
+        "cntv.cn",
+        "ameba.jp",
+        "java.com",
+        "lifehacker.com",
+        "jabong.com",
+        "gizmodo.com",
+        "ebay.it",
+        "lenovo.com",
+        "hypergames.net",
+        "google.fi",
+        "doorblog.jp",
+        "blogspot.de",
+        "jimdo.com",
+        "probux.com",
+        "blogspot.it",
+        "habrahabr.ru",
+        "webmoney.ru",
+        "irctc.co.in",
+        "sahibinden.com",
+        "github.io",
+        "informer.com",
+        "mysearchresults.com",
+        "upworthy.com",
+        "pch.com",
+        "eyny.com",
+        "canadaalltax.com",
+        "b5m.com",
+        "freelancer.com",
+        "match.com",
+        "searchfun.in",
+        "adnxs.com",
+        "sberbank.ru",
+        "ig.com.br",
+        "trulia.com",
+        "subscene.com",
+        "corriere.it",
+        "livescore.com",
+        "irs.gov",
+        "twoo.com",
+        "clixsense.com",
+        "4399.com",
+        "xda-developers.com",
+        "iminent.com",
+        "google.com.my",
+        "onlinesbi.com",
+        "empowernetwork.com",
+        "zing.vn",
+        "youdao.com",
+        "systweak.com",
+        "flipora.com",
+        "ning.com",
+        "engadget.com",
+        "abril.com.br",
+        "exoclick.com",
+        "semrush.com",
+        "commentcamarche.net",
+        "shareasale.com",
+        "vnexpress.net",
+        "battle.net",
+        "youm7.com",
+        "digg.com",
+        "rapidgator.net",
+        "expedia.com",
+        "twimg.com",
+        "newegg.com",
+        "lady8844.com",
+        "xgo.com.cn",
+        "pcgames.com.cn",
+        "fotolia.com",
+        "rednet.cn",
+        "inspsearch.com",
+        "lemonde.fr",
+        "adultfriendfinder.com",
+        "typepad.com",
+        "mercadolibre.com.ar",
+        "homedepot.com",
+        "chip.de",
+        "lefigaro.fr",
+        "swagbucks.com",
+        "taleo.net",
+        "kinopoisk.ru",
+        "oracle.com",
+        "who.is",
+        "2ch.net",
+        "qtrax.com",
+        "eonline.com",
+        "sochi2014.com",
+        "myfreecams.com",
+        "pcbaby.com.cn",
+        "gome.com.cn",
+        "amazon.it",
+        "timeanddate.com",
+        "bestusefuldownloads.com",
+        "foursquare.com",
+        "telexfree.com",
+        "gc.ca",
+        "58.com",
+        "hubspot.com",
+        "backpage.com",
+        "examiner.com",
+        "ria.ru",
+        "google.sk",
+        "opensiteexplorer.org",
+        "awesomehp.com",
+        "sexlog.com",
+        "gutefrage.net",
+        "steampowered.com",
+        "slate.com",
+        "marketwatch.com",
+        "beva.com",
+        "shaadi.com",
+        "v1.cn",
+        "teensdigest.com",
+        "blogspot.ru",
+        "taboola.com",
+        "citrixonline.com",
+        "hatena.ne.jp",
+        "seesaa.net",
+        "houzz.com",
+        "bodybuilding.com",
+        "webs.com",
+        "chexun.com",
+        "ya.ru",
+        "citibank.com",
+        "viralnova.com",
+        "2345.com",
+        "ashleyrnadison.com",
+        "verizonwireless.com",
+        "55bbs.com",
+        "theblaze.com",
+        "123rf.com",
+        "gotomeeting.com",
+        "kijiji.ca",
+        "linkbucks.com",
+        "haber7.com",
+        "pravda.com.ua",
+        "altervista.org",
+        "mihanblog.com",
+        "terra.com.br",
+        "soku.com",
+        "urbandictionary.com",
+        "mercadolibre.com.mx",
+        "pixiv.net",
+        "oneindia.in",
+        "yellowpages.com",
+        "hotels.com",
+        "drtuber.com",
+        "scoop.it",
+        "blogspot.jp",
+        "cbslocal.com",
+        "movie4k.to",
+        "cpmterra.com",
+        "hubpages.com",
+        "mobile.de",
+        "yaolan.com",
+        "etao.com",
+        "hidemyass.com",
+        "ca.gov",
+        "dreamstime.com",
+        "firedrive.com",
+        "searchengines.ru",
+        "m-w.com",
+        "ebay.fr",
+        "templatemonster.com",
+        "evernote.com",
+        "fastdailyfind.com",
+        "amazon.es",
+        "gateable.com",
+        "hupu.com",
+        "y8.com",
+        "blogspot.com.tr",
+        "tokobagus.com",
+        "azlyrics.com",
+        "website-unavailable.com",
+        "r10.net",
+        "wiktionary.org",
+        "bongacams.com",
+        "focus.de",
+        "linksynergy.com",
+        "steamcommunity.com",
+        "vk.me",
+        "sakura.ne.jp",
+        "foxsports.com",
+        "optmd.com",
+        "tabelog.com",
+        "narod.ru",
+        "glassdoor.com",
+        "outlook.com",
+        "europa.eu",
+        "viadeo.com",
+        "leadpages.net",
+        "ouedkniss.com",
+        "facenama.com",
+        "lpcloudsvr302.com",
+        "agoda.com",
+        "qvo6.com",
+        "majesticseo.com",
+        "mirror.co.uk",
+        "google.com.kw",
+        "filehippo.com",
+        "moneycontrol.com",
+        "duckduckgo.com",
+        "npr.org",
+        "coupons.com",
+        "mynet.com",
+        "allrecipes.com",
+        "priceline.com",
+        "liveleak.com",
+        "jqw.com",
+        "slickdeals.net",
+        "webcrawler.com",
+        "babytree.com",
+        "amung.us",
+        "tomshardware.com",
+        "openadserving.com",
+        "independent.co.uk",
+        "kompas.com",
+        "turbobit.net",
+        "google.kz",
+        "leo.org",
+        "yandex.com.tr",
+        "mp3skull.com",
+        "nordstrom.com",
+        "news.com.au",
+        "traidnt.net",
+        "wunderground.com",
+        "cnbc.com",
+        "jquery.com",
+        "dict.cc",
+        "persianblog.ir",
+        "clarin.com",
+        "all-free-download.com",
+        "fhserve.com",
+        "sape.ru",
+        "asos.com",
+        "addmefast.com",
+        "lequipe.fr",
+        "lapatilla.com",
+        "ancestry.com",
+        "stockstar.com",
+        "monster.com",
+        "people.com",
+        "gawker.com",
+        "howstuffworks.com",
+        "tradedoubler.com",
+        "over-blog.com",
+        "cbc.ca",
+        "fishcod.com",
+        "yoka.com",
+        "macys.com",
+        "gazeta.ru",
+        "free-tv-video-online.me",
+        "google.bg",
+        "google.lk",
+        "southwest.com",
+        "realtor.com",
+        "custhelp.com",
+        "bhaskar.com",
+        "softpedia.com",
+        "farsnews.com",
+        "cy-pr.com",
+        "theverge.com",
+        "tudou.com",
+        "youboy.com",
+        "porn.com",
+        "wetransfer.com",
+        "virgilio.it",
+        "mega.co.nz",
+        "sfgate.com",
+        "delta-homes.com",
+        "squarespace.com",
+        "watchseries.lt",
+        "overstock.com",
+        "nifty.com",
+        "jvzoo.com",
+        "lanacion.com.ar",
+        "prntscr.com",
+        "vesti.ru",
+        "zimbio.com",
+        "adscale.de",
+        "google.co.nz",
+        "yac.mx",
+        "tickld.com",
+        "kayak.com",
+        "youth.cn",
+        "jd.com",
+        "shopclues.com",
+        "allocine.fr",
+        "cracked.com",
+        "eventbrite.com",
+        "behance.net",
+        "youtube-mp3.org",
+        "bankmellat.ir",
+        "echo.msk.ru",
+        "autohome.com.cn",
+        "yandex.kz",
+        "sex.com",
+        "smh.com.au",
+        "digikala.com",
+        "mackolik.com",
+        "rottentomatoes.com",
+        "renren.com",
+        "wired.com",
+        "imageshack.us",
+        "interia.pl",
+        "zanox.com",
+        "eastday.com",
+        "fool.com",
+        "chinabyte.com",
+        "haberturk.com",
+        "hespress.com",
+        "wow.com",
+        "jobrapido.com",
+        "idnes.cz",
+        "qinbei.com",
+        "pr-cy.ru",
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+        "3u5.net",
+        "roshd.ir",
+        "netechangisme.com",
+        "ojogo.pt",
+        "ujipin.com",
+        "topuniversities.com",
+        "consequenceofsound.net",
+        "no-ip.biz",
+        "webdesignerwall.com",
+        "fin24.com",
+        "openculture.com",
+        "pbh2.com",
+        "dota2.com",
+        "secureupload.eu",
+        "alfajertv.com",
+        "canlidizihdtv.com",
+        "muffingroup.com",
+        "imageforum.com",
+        "paris.fr",
+        "kaufda.de",
+        "pelis24.com",
+        "ixian.cn",
+        "ebenpagan.com",
+        "sportsauthority.com",
+        "wish.com",
+        "ganeshaspeaks.com",
+        "meritnation.com",
+        "ijie.com",
+        "vodafone.com.tr",
+        "trovit.es",
+        "farsisubtitle.com",
+        "musawvir.com",
+        "resellerratings.com",
+        "soyentrepreneur.com",
+        "samakal.net",
+        "dietnavi.com",
+        "55tuan.com",
+        "elcomercio.com",
+        "hereisthecity.com",
+        "buienradar.nl",
+        "arenabg.com",
+        "indiansexstories.net",
+        "slideboom.com",
+        "findsection.net",
+        "rankrecon.com",
+        "e-radio.gr",
+        "cnn.co.jp",
+        "gucci.com",
+        "natura.net",
+        "googlesyndication.com",
+        "advancedwebranking.com",
+        "lib.ru",
+        "sfora.pl",
+        "uci.edu",
+        "haaretz.co.il",
+        "ing.be",
+        "yokboylebirsey.com.tr",
+        "myfact.tv",
+        "yenibiris.com",
+        "stuff.tv",
+        "dn.pt",
+        "whydontyoutrythis.com",
+        "nediyor.com",
+        "worldoftanks.asia",
+        "megamillions.com",
+        "elemanonline.net",
+        "computrabajo.com.pe",
+        "arxiv.org",
+        "livescore.tv",
+        "aintitcool.com",
+        "girlschannel.net",
+        "madbid.com",
+        "tadawul.com.sa",
+        "liqpay.com",
+        "softonic.jp",
+        "alhilal.com",
+        "bizpowa.com",
+        "thatguywiththeglasses.com",
+        "yemeneconomist.com",
+        "pazar3.mk",
+        "repai.com",
+        "1jux.net",
+        "solvusoft.com",
+        "yotpo.com",
+        "cuantocabron.com",
+        "ba.gov.br",
+        "arin.net",
+        "loginza.ru",
+        "homebank.ro",
+        "0755car.com",
+        "carscoops.com",
+        "antarvasna.com",
+        "tizag.com",
+        "offerpop.com",
+        "techmeme.com",
+        "ipress.ua",
+        "emuparadise.me",
+        "sexvidx.com",
+        "whatseek.com",
+        "become.co.jp",
+        "snapfish.com",
+        "gsis.gr",
+        "speedyshare.com",
+        "uncrate.com",
+        "doda.jp",
+        "straighttalk.com",
+        "rsjoomla.com",
+        "vozpopuli.com",
+        "gotprint.net",
+        "finansbank.com.tr",
+        "chinatrust.com.tw",
+        "stratoserver.net",
+        "icnetwork.co.uk",
+        "getpopcornti.me",
+        "pornper.com",
+        "3dmgame.com",
+        "squirt.org",
+        "mbusa.com",
+        "katespade.com",
+        "skat.dk",
+        "radiko.jp",
+        "dexonline.ro",
+        "bicaps.net",
+        "bitsoma.com",
+        "brasil247.com",
+        "alittlemarket.com",
+        "bd-pratidin.com",
+        "amorincontro.com",
+        "bigxvideos.com",
+        "nissan.co.jp",
+        "incomediary.com",
+        "theranking.com",
+        "el7l.co",
+        "webcamtoy.com",
+        "steamgifts.com",
+        "miles-and-more.com",
+        "szonline.net",
+        "blocked-website.com",
+        "kaztorka.org",
+        "avforums.com",
+        "indulgy.com",
+        "extendcp.co.uk",
+        "yonkis.com",
+        "ad1111.com",
+        "unionbankph.com",
+        "job.com",
+        "samanepay.com",
+        "aceona.com",
+        "kar.nic.in",
+        "tipico.com",
+        "sa.ae",
+        "froma.com",
+        "songza.com",
+        "calciomercato.com",
+        "besaba.com",
+        "x-rates.com",
+        "arsys.es",
+        "sisal.it",
+        "amateur.tv",
+        "designyourway.net",
+        "alpha.gr",
+        "nimble.com",
+        "livefreefun.com",
+        "wipo.int",
+        "webssearches.com",
+        "vodjk.com",
+        "91tiger.com",
+        "swisscom.com",
+        "tuvaro.com",
+        "parsonline.net",
+        "uolhost.com.br",
+        "cnwest.com",
+        "roksa.pl",
+        "socialmention.com",
+        "unibytes.com",
+        "screamingfrog.co.uk",
+        "owncloud.org",
+        "jacquielawson.com",
+        "openclipart.org",
+        "zimbra.com",
+        "poczta-polska.pl",
+        "hayah.cc",
+        "ringtonematcher.com",
+        "emai.com",
+        "wealink.com",
+        "celebzen.com",
+        "pichost.me",
+        "rediffmail.com",
+        "dinos.co.jp",
+        "netvasco.com.br",
+        "meilele.com",
+        "career.ru",
+        "signupgenius.com",
+        "screencast-o-matic.com",
+        "nav.no",
+        "reactiongifs.com",
+        "italki.com",
+        "mo.gov",
+        "bandsintown.com",
+        "elwatan.com",
+        "jdate.com",
+        "quiente.net",
+        "skynet.be",
+        "googlekeywordtool.com",
+        "nubilefilms.com",
+        "memedeportes.com",
+        "rewardingzonez.com",
+        "litmus.com",
+        "iyaxin.com",
+        "collegeconfidential.com",
+        "semperplugins.com",
+        "sofort.com",
+        "ineedhits.com",
+        "live24.gr",
+        "acronymfinder.com",
+        "jobui.com",
+        "9show.com",
+        "thedirty.com",
+        "tsutaya.co.jp",
+        "9787.com",
+        "brighthouse.com",
+        "boxingscene.com",
+        "indeed.com.br",
+        "morazzia.com",
+        "privatejobshub.blogspot.in",
+        "searchenginepeople.com",
+        "pozdravok.ru",
+        "watchstore.com.cn",
+        "rts.ch",
+        "pluska.sk",
+        "villagevoice.com",
+        "sprintrade.com",
+        "conversionxl.com",
+        "evsuite.com",
+        "bci.cl",
+        "lampsplus.com",
+        "gossipcop.com",
+        "valuecommerce.com",
+        "zalora.co.id",
+        "fastshop.com.br",
+        "hockeysfuture.com",
+        "bootply.com",
+        "chinavasion.com",
+        "menards.com",
+        "kinobar.net",
+        "tokyodisneyresort.jp",
+        "knownhost.com",
+        "ozbargain.com.au",
+        "olx.com.ve",
+        "sgk.gov.tr",
+        "berliner-sparkasse.de",
+        "bancogalicia.com.ar",
+        "joomla-master.org",
+        "augsburger-allgemeine.de",
+        "kroger.com",
+        "pulse.ng",
+        "putlocker.com",
+        "jrtj.com",
+        "tapuz.co.il",
+        "madhyamam.com",
+        "donews.com",
+        "showhaber.com",
+        "allxnxx.com",
+        "uned.es",
+        "adsharebux.com",
+        "d-addicts.com",
+        "banki.ir",
+        "levi.com",
+        "e97527f0.se",
+        "entertainmentwise.com",
+        "xvideos-field.com",
+        "naver.net",
+        "urbia.de",
+        "fashionsfriend.com",
+        "emuch.net",
+        "yelp.fr",
+        "metatube.com",
+        "sina.com.hk",
+        "omb100.com",
+        "grameenphone.com",
+        "stylebook.de",
+        "funny-games.biz",
+        "googlewebmastercentral.blogspot.com",
+        "vogella.com",
+        "surveymonkey.net",
+        "forex4you.org",
+        "mex.tl",
+        "online-fish-games.com",
+        "millenniumbcp.pt",
+        "fileom.com",
+        "friendorfollow.com",
+        "downloads.nl",
+        "typekit.com",
+        "gongkong.com",
+        "iqoption.com",
+        "tori.fi",
+        "smartsource.com",
+        "1616.net",
+        "1shoppingcart.com",
+        "novosti.rs",
+        "yofond.com",
+        "idokep.hu",
+        "motor.ru",
+        "xbiao.com",
+        "colorcombos.com",
+        "pway.cn",
+        "egynews.net",
+        "elshaab.org",
+        "telus.com",
+        "olx.com.co",
+        "cctvcj.com",
+        "kpopstarz.com",
+        "razorsocial.com",
+        "ncrypt.in",
+        "zonetheme.com",
+        "gumroad.com",
+        "e-shop.gr",
+        "kugli.com",
+        "levif.be",
+        "bookfi.org",
+        "globalresearch.ca",
+        "sas.com",
+        "cloudaccess.net",
+        "uplooder.net",
+        "exposedwebcams.com",
+        "1prime.ru",
+        "webappers.com",
+        "crocko.com",
+        "remax.com",
+        "ikco.com",
+        "dinside.no",
+        "winbank.gr",
+        "mijnwoordenboek.nl",
+        "weatherzone.com.au",
+        "allday2.com",
+        "sunat.gob.pe",
+        "getit.in",
+        "entrance-exam.net",
+        "i2ya.com",
+        "tlife.gr",
+        "qyer.com",
+        "calibre-ebook.com",
+        "internetcorkboard.com",
+        "unitedhyipleague.com",
+        "spyrestudios.com",
+        "metal-archives.com",
+        "aeromexico.com",
+        "cv-library.co.uk",
+        "bdr1.net",
+        "aremo.com.br",
+        "blip.tv",
+        "afilio.com.br",
+        "renewalcoupons.com",
+        "proxfree.com",
+        "magix.com",
+        "jobs.net",
+        "souism.com",
+        "adtcstrk.com",
+        "goodhousekeeping.com",
+        "lastfm.ru",
+        "sharecare.com",
+        "porn.xxx",
+        "deathandtaxesmag.com",
+        "unocero.com",
+        "wer-kennt-wen.de",
+        "hotfrog.com",
+        "intraship.de",
+        "press24.mk",
+        "yournewscorner.com",
+        "rbc.com",
+        "eventure.com",
+        "minglebox.com",
+        "legendas.tv",
+        "drp.su",
+        "voicefrom.me",
+        "venezuelaaldia.com",
+        "cooks.com",
+        "numbeo.com",
+        "chilehardware.cl",
+        "cryptocointalk.com",
+        "venusfactor.com",
+        "recruitmentcareer.in",
+        "larazon.es",
+        "sptechs.com",
+        "asx.com.au",
+        "ahlife.com",
+        "st001.com",
+        "actudesfinances.info",
+        "talkarcades.com",
+        "nitori-net.jp",
+        "chinahr.com",
+        "websitetestlink.com",
+        "hypem.com",
+        "demorgen.be",
+        "sharefile.com",
+        "prensalibre.com",
+        "eldia.com.ar",
+        "billiger.de",
+        "3docean.net",
+        "streamsend.com",
+        "tuaw.com",
+        "portafolio.co",
+        "trivago.com",
+        "olxpix.com",
+        "geotrust.com",
+        "torrentgun.net",
+        "enha.kr",
+        "pcastuces.com",
+        "t.cn",
+        "dimsemenov.com",
+        "cam4.nl",
+        "basspro.com",
+        "macupdate.com",
+        "strawpoll.me",
+        "elintransigente.com",
+        "homeaway.co.uk",
+        "my.ecwid.com",
+        "graphpaperpress.com",
+        "architonic.com",
+        "flowplayer.org",
+        "syshl.com",
+        "18schoolgirlz.com"
+    });
+
+    return urls;
+}
diff --git a/src/boost/libs/beast/example/http/client/crawl/urls_large_data.hpp b/src/boost/libs/beast/example/http/client/crawl/urls_large_data.hpp
new file mode 100644
index 000000000..06be4acd9
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/crawl/urls_large_data.hpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_HTTP_CLIENT_CRAWL_URLS_LARGE_DATA_HPP
+#define BOOST_BEAST_EXAMPLE_HTTP_CLIENT_CRAWL_URLS_LARGE_DATA_HPP
+
+#include <vector>
+
+std::vector<char const*> const&
+urls_large_data();
+
+#endif
diff --git a/src/boost/libs/beast/example/http/client/sync-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/client/sync-ssl/CMakeLists.txt
new file mode 100644
index 000000000..0e0fbea07
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/sync-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/client/sync-ssl "/")
+
+    add_executable (http-client-sync-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        http_client_sync_ssl.cpp
+    )
+
+    set_property(TARGET http-client-sync-ssl PROPERTY FOLDER "example-http-client")
+
+    target_link_libraries (http-client-sync-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/client/sync-ssl/Jamfile b/src/boost/libs/beast/example/http/client/sync-ssl/Jamfile
new file mode 100644
index 000000000..c1fabf479
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/sync-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-client-sync-ssl :
+    http_client_sync_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/client/sync-ssl/http_client_sync_ssl.cpp b/src/boost/libs/beast/example/http/client/sync-ssl/http_client_sync_ssl.cpp
new file mode 100644
index 000000000..726c84204
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/sync-ssl/http_client_sync_ssl.cpp
@@ -0,0 +1,128 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL client, synchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/connect.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/ssl/error.hpp>
+#include <boost/asio/ssl/stream.hpp>
+#include <cstdlib>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast; // from <boost/beast.hpp>
+namespace http = beast::http;   // from <boost/beast/http.hpp>
+namespace net = boost::asio;    // from <boost/asio.hpp>
+namespace ssl = net::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = net::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Performs an HTTP GET and prints the response
+int main(int argc, char** argv)
+{
+    try
+    {
+        // Check command line arguments.
+        if(argc != 4 && argc != 5)
+        {
+            std::cerr <<
+                "Usage: http-client-sync-ssl <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+                "Example:\n" <<
+                "    http-client-sync-ssl www.example.com 443 /\n" <<
+                "    http-client-sync-ssl www.example.com 443 / 1.0\n";
+            return EXIT_FAILURE;
+        }
+        auto const host = argv[1];
+        auto const port = argv[2];
+        auto const target = argv[3];
+        int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+        // The io_context is required for all I/O
+        net::io_context ioc;
+
+        // The SSL context is required, and holds certificates
+        ssl::context ctx(ssl::context::tlsv12_client);
+
+        // This holds the root certificate used for verification
+        load_root_certificates(ctx);
+
+        // Verify the remote server's certificate
+        ctx.set_verify_mode(ssl::verify_peer);
+
+            // These objects perform our I/O
+        tcp::resolver resolver(ioc);
+        beast::ssl_stream<beast::tcp_stream> stream(ioc, ctx);
+
+        // Set SNI Hostname (many hosts need this to handshake successfully)
+        if(! SSL_set_tlsext_host_name(stream.native_handle(), host))
+        {
+            beast::error_code ec{static_cast<int>(::ERR_get_error()), net::error::get_ssl_category()};
+            throw beast::system_error{ec};
+        }
+
+        // Look up the domain name
+        auto const results = resolver.resolve(host, port);
+
+        // Make the connection on the IP address we get from a lookup
+        beast::get_lowest_layer(stream).connect(results);
+
+        // Perform the SSL handshake
+        stream.handshake(ssl::stream_base::client);
+
+        // Set up an HTTP GET request message
+        http::request<http::string_body> req{http::verb::get, target, version};
+        req.set(http::field::host, host);
+        req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+        // Send the HTTP request to the remote host
+        http::write(stream, req);
+
+        // This buffer is used for reading and must be persisted
+        beast::flat_buffer buffer;
+
+        // Declare a container to hold the response
+        http::response<http::dynamic_body> res;
+
+        // Receive the HTTP response
+        http::read(stream, buffer, res);
+
+        // Write the message to standard out
+        std::cout << res << std::endl;
+
+        // Gracefully close the stream
+        beast::error_code ec;
+        stream.shutdown(ec);
+        if(ec == net::error::eof)
+        {
+            // Rationale:
+            // http://stackoverflow.com/questions/25587403/boost-asio-ssl-async-shutdown-always-finishes-with-an-error
+            ec = {};
+        }
+        if(ec)
+            throw beast::system_error{ec};
+
+        // If we get here then the connection is closed gracefully
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/client/sync/CMakeLists.txt b/src/boost/libs/beast/example/http/client/sync/CMakeLists.txt
new file mode 100644
index 000000000..ea877ec4f
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/sync/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/client/sync "/")
+
+add_executable (http-client-sync
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_client_sync.cpp
+)
+
+target_link_libraries(http-client-sync
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-client-sync PROPERTY FOLDER "example-http-client")
diff --git a/src/boost/libs/beast/example/http/client/sync/Jamfile b/src/boost/libs/beast/example/http/client/sync/Jamfile
new file mode 100644
index 000000000..969246f65
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/sync/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-client-sync :
+    http_client_sync.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/client/sync/http_client_sync.cpp b/src/boost/libs/beast/example/http/client/sync/http_client_sync.cpp
new file mode 100644
index 000000000..795618161
--- /dev/null
+++ b/src/boost/libs/beast/example/http/client/sync/http_client_sync.cpp
@@ -0,0 +1,105 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP client, synchronous
+//
+//------------------------------------------------------------------------------
+
+//[example_http_client
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/connect.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <cstdlib>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;     // from <boost/beast.hpp>
+namespace http = beast::http;       // from <boost/beast/http.hpp>
+namespace net = boost::asio;        // from <boost/asio.hpp>
+using tcp = net::ip::tcp;           // from <boost/asio/ip/tcp.hpp>
+
+// Performs an HTTP GET and prints the response
+int main(int argc, char** argv)
+{
+    try
+    {
+        // Check command line arguments.
+        if(argc != 4 && argc != 5)
+        {
+            std::cerr <<
+                "Usage: http-client-sync <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
+                "Example:\n" <<
+                "    http-client-sync www.example.com 80 /\n" <<
+                "    http-client-sync www.example.com 80 / 1.0\n";
+            return EXIT_FAILURE;
+        }
+        auto const host = argv[1];
+        auto const port = argv[2];
+        auto const target = argv[3];
+        int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;
+
+        // The io_context is required for all I/O
+        net::io_context ioc;
+
+        // These objects perform our I/O
+        tcp::resolver resolver(ioc);
+        beast::tcp_stream stream(ioc);
+
+        // Look up the domain name
+        auto const results = resolver.resolve(host, port);
+
+        // Make the connection on the IP address we get from a lookup
+        stream.connect(results);
+
+        // Set up an HTTP GET request message
+        http::request<http::string_body> req{http::verb::get, target, version};
+        req.set(http::field::host, host);
+        req.set(http::field::user_agent, BOOST_BEAST_VERSION_STRING);
+
+        // Send the HTTP request to the remote host
+        http::write(stream, req);
+
+        // This buffer is used for reading and must be persisted
+        beast::flat_buffer buffer;
+
+        // Declare a container to hold the response
+        http::response<http::dynamic_body> res;
+
+        // Receive the HTTP response
+        http::read(stream, buffer, res);
+
+        // Write the message to standard out
+        std::cout << res << std::endl;
+
+        // Gracefully close the socket
+        beast::error_code ec;
+        stream.socket().shutdown(tcp::socket::shutdown_both, ec);
+
+        // not_connected happens sometimes
+        // so don't bother reporting it.
+        //
+        if(ec && ec != beast::errc::not_connected)
+            throw beast::system_error{ec};
+
+        // If we get here then the connection is closed gracefully
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}
+
+//]
diff --git a/src/boost/libs/beast/example/http/server/CMakeLists.txt b/src/boost/libs/beast/example/http/server/CMakeLists.txt
new file mode 100644
index 000000000..350b465a7
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (async)
+add_subdirectory (coro)
+add_subdirectory (fast)
+add_subdirectory (small)
+add_subdirectory (stackless)
+add_subdirectory (sync)
+
+if (OPENSSL_FOUND)
+    add_subdirectory (async-ssl)
+    add_subdirectory (coro-ssl)
+    add_subdirectory (flex)
+    add_subdirectory (stackless-ssl)
+    add_subdirectory (sync-ssl)
+endif()
diff --git a/src/boost/libs/beast/example/http/server/Jamfile b/src/boost/libs/beast/example/http/server/Jamfile
new file mode 100644
index 000000000..cb8ab104f
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project async ;
+build-project coro ;
+build-project fast ;
+build-project small ;
+build-project stackless ;
+build-project sync ;
+
+# SSL
+build-project async-ssl ;
+build-project coro-ssl ;
+build-project flex ;
+build-project stackless-ssl ;
+build-project sync-ssl ;
diff --git a/src/boost/libs/beast/example/http/server/async-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/server/async-ssl/CMakeLists.txt
new file mode 100644
index 000000000..4c1e2cd02
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/async-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/server/async-ssl "/")
+
+    add_executable (http-server-async-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        http_server_async_ssl.cpp
+    )
+
+    set_property(TARGET http-server-async-ssl PROPERTY FOLDER "example-http-server")
+
+    target_link_libraries (http-server-async-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/server/async-ssl/Jamfile b/src/boost/libs/beast/example/http/server/async-ssl/Jamfile
new file mode 100644
index 000000000..f4cf0204e
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/async-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-server-async-ssl :
+    http_server_async_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/async-ssl/http_server_async_ssl.cpp b/src/boost/libs/beast/example/http/server/async-ssl/http_server_async_ssl.cpp
new file mode 100644
index 000000000..f6c66c90f
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/async-ssl/http_server_async_ssl.cpp
@@ -0,0 +1,564 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL server, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    // ssl::error::stream_truncated, also known as an SSL "short read",
+    // indicates the peer closed the connection without performing the
+    // required closing handshake (for example, Google does this to
+    // improve performance). Generally this can be a security issue,
+    // but if your communication protocol is self-terminated (as
+    // it is with both HTTP and WebSocket) then you may simply
+    // ignore the lack of close_notify.
+    //
+    // https://github.com/boostorg/beast/issues/38
+    //
+    // https://security.stackexchange.com/questions/91435/how-to-handle-a-malicious-ssl-tls-shutdown
+    //
+    // When a short read would cut off the end of an HTTP message,
+    // Beast returns the error beast::http::error::partial_message.
+    // Therefore, if we see a short read here, it has occurred
+    // after the message has been completed, so it is safe to ignore it.
+
+    if(ec == net::ssl::error::stream_truncated)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Handles an HTTP server connection
+class session : public std::enable_shared_from_this<session>
+{
+    // This is the C++11 equivalent of a generic lambda.
+    // The function object is used to send an HTTP message.
+    struct send_lambda
+    {
+        session& self_;
+
+        explicit
+        send_lambda(session& self)
+            : self_(self)
+        {
+        }
+
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg) const
+        {
+            // The lifetime of the message has to extend
+            // for the duration of the async operation so
+            // we use a shared_ptr to manage it.
+            auto sp = std::make_shared<
+                http::message<isRequest, Body, Fields>>(std::move(msg));
+
+            // Store a type-erased version of the shared
+            // pointer in the class to keep it alive.
+            self_.res_ = sp;
+
+            // Write the response
+            http::async_write(
+                self_.stream_,
+                *sp,
+                beast::bind_front_handler(
+                    &session::on_write,
+                    self_.shared_from_this(),
+                    sp->need_eof()));
+        }
+    };
+
+    beast::ssl_stream<beast::tcp_stream> stream_;
+    beast::flat_buffer buffer_;
+    std::shared_ptr<std::string const> doc_root_;
+    http::request<http::string_body> req_;
+    std::shared_ptr<void> res_;
+    send_lambda lambda_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    session(
+        tcp::socket&& socket,
+        ssl::context& ctx,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket), ctx)
+        , doc_root_(doc_root)
+        , lambda_(*this)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(
+            stream_.get_executor(),
+            beast::bind_front_handler(
+                &session::on_run,
+                shared_from_this()));
+    }
+
+    void
+    on_run()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(
+            std::chrono::seconds(30));
+
+        // Perform the SSL handshake
+        stream_.async_handshake(
+            ssl::stream_base::server,
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        // Make the request empty before reading,
+        // otherwise the operation behavior is undefined.
+        req_ = {};
+
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Read a request
+        http::async_read(stream_, buffer_, req_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This means they closed the connection
+        if(ec == http::error::end_of_stream)
+            return do_close();
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root_, std::move(req_), lambda_);
+    }
+
+    void
+    on_write(
+        bool close,
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            return do_close();
+        }
+
+        // We're done with the response so delete it
+        res_ = nullptr;
+
+        // Read another request
+        do_read();
+    }
+
+    void
+    do_close()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Perform the SSL shutdown
+        stream_.async_shutdown(
+            beast::bind_front_handler(
+                &session::on_shutdown,
+                shared_from_this()));
+    }
+
+    void
+    on_shutdown(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "shutdown");
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    ssl::context& ctx_;
+    tcp::acceptor acceptor_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        ssl::context& ctx,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , ctx_(ctx)
+        , acceptor_(ioc)
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the session and run it
+            std::make_shared<session>(
+                std::move(socket),
+                ctx_,
+                doc_root_)->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-async-ssl <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-async-ssl 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        ctx,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/async/CMakeLists.txt b/src/boost/libs/beast/example/http/server/async/CMakeLists.txt
new file mode 100644
index 000000000..b94c0521f
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/async/CMakeLists.txt
@@ -0,0 +1,24 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/server/async "/")
+
+add_executable (http-server-async
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_server_async.cpp
+)
+
+target_link_libraries(http-server-async
+    lib-asio
+    lib-asio-ssl
+    lib-beast)
+
+set_property(TARGET http-server-async PROPERTY FOLDER "example-http-server")
diff --git a/src/boost/libs/beast/example/http/server/async/Jamfile b/src/boost/libs/beast/example/http/server/async/Jamfile
new file mode 100644
index 000000000..f36d1ad47
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/async/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-server-async :
+    http_server_async.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/async/http_server_async.cpp b/src/boost/libs/beast/example/http/server/async/http_server_async.cpp
new file mode 100644
index 000000000..55fd234bb
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/async/http_server_async.cpp
@@ -0,0 +1,490 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP server, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Handles an HTTP server connection
+class session : public std::enable_shared_from_this<session>
+{
+    // This is the C++11 equivalent of a generic lambda.
+    // The function object is used to send an HTTP message.
+    struct send_lambda
+    {
+        session& self_;
+
+        explicit
+        send_lambda(session& self)
+            : self_(self)
+        {
+        }
+
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg) const
+        {
+            // The lifetime of the message has to extend
+            // for the duration of the async operation so
+            // we use a shared_ptr to manage it.
+            auto sp = std::make_shared<
+                http::message<isRequest, Body, Fields>>(std::move(msg));
+
+            // Store a type-erased version of the shared
+            // pointer in the class to keep it alive.
+            self_.res_ = sp;
+
+            // Write the response
+            http::async_write(
+                self_.stream_,
+                *sp,
+                beast::bind_front_handler(
+                    &session::on_write,
+                    self_.shared_from_this(),
+                    sp->need_eof()));
+        }
+    };
+
+    beast::tcp_stream stream_;
+    beast::flat_buffer buffer_;
+    std::shared_ptr<std::string const> doc_root_;
+    http::request<http::string_body> req_;
+    std::shared_ptr<void> res_;
+    send_lambda lambda_;
+
+public:
+    // Take ownership of the stream
+    session(
+        tcp::socket&& socket,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket))
+        , doc_root_(doc_root)
+        , lambda_(*this)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(stream_.get_executor(),
+                      beast::bind_front_handler(
+                          &session::do_read,
+                          shared_from_this()));
+    }
+
+    void
+    do_read()
+    {
+        // Make the request empty before reading,
+        // otherwise the operation behavior is undefined.
+        req_ = {};
+
+        // Set the timeout.
+        stream_.expires_after(std::chrono::seconds(30));
+
+        // Read a request
+        http::async_read(stream_, buffer_, req_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This means they closed the connection
+        if(ec == http::error::end_of_stream)
+            return do_close();
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root_, std::move(req_), lambda_);
+    }
+
+    void
+    on_write(
+        bool close,
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            return do_close();
+        }
+
+        // We're done with the response so delete it
+        res_ = nullptr;
+
+        // Read another request
+        do_read();
+    }
+
+    void
+    do_close()
+    {
+        // Send a TCP shutdown
+        beast::error_code ec;
+        stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , acceptor_(net::make_strand(ioc))
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the session and run it
+            std::make_shared<session>(
+                std::move(socket),
+                doc_root_)->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-async <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-async 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/coro-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/server/coro-ssl/CMakeLists.txt
new file mode 100644
index 000000000..9bbf294cf
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/coro-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/server/coro-ssl "/")
+
+    add_executable (http-server-coro-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        http_server_coro_ssl.cpp
+    )
+
+    set_property(TARGET http-server-coro-ssl PROPERTY FOLDER "example-http-server")
+
+    target_link_libraries (http-server-coro-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/server/coro-ssl/Jamfile b/src/boost/libs/beast/example/http/server/coro-ssl/Jamfile
new file mode 100644
index 000000000..8870f65d2
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/coro-ssl/Jamfile
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-server-coro-ssl :
+    http_server_coro_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/http/server/coro-ssl/http_server_coro_ssl.cpp b/src/boost/libs/beast/example/http/server/coro-ssl/http_server_coro_ssl.cpp
new file mode 100644
index 000000000..a733c6244
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/coro-ssl/http_server_coro_ssl.cpp
@@ -0,0 +1,432 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL server, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    // ssl::error::stream_truncated, also known as an SSL "short read",
+    // indicates the peer closed the connection without performing the
+    // required closing handshake (for example, Google does this to
+    // improve performance). Generally this can be a security issue,
+    // but if your communication protocol is self-terminated (as
+    // it is with both HTTP and WebSocket) then you may simply
+    // ignore the lack of close_notify.
+    //
+    // https://github.com/boostorg/beast/issues/38
+    //
+    // https://security.stackexchange.com/questions/91435/how-to-handle-a-malicious-ssl-tls-shutdown
+    //
+    // When a short read would cut off the end of an HTTP message,
+    // Beast returns the error beast::http::error::partial_message.
+    // Therefore, if we see a short read here, it has occurred
+    // after the message has been completed, so it is safe to ignore it.
+
+    if(ec == net::ssl::error::stream_truncated)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// This is the C++11 equivalent of a generic lambda.
+// The function object is used to send an HTTP message.
+struct send_lambda
+{
+    beast::ssl_stream<beast::tcp_stream>& stream_;
+    bool& close_;
+    beast::error_code& ec_;
+    net::yield_context yield_;
+
+    send_lambda(
+        beast::ssl_stream<beast::tcp_stream>& stream,
+        bool& close,
+        beast::error_code& ec,
+        net::yield_context yield)
+        : stream_(stream)
+        , close_(close)
+        , ec_(ec)
+        , yield_(yield)
+    {
+    }
+
+    template<bool isRequest, class Body, class Fields>
+    void
+    operator()(http::message<isRequest, Body, Fields>&& msg) const
+    {
+        // Determine if we should close the connection after
+        close_ = msg.need_eof();
+
+        // We need the serializer here because the serializer requires
+        // a non-const file_body, and the message oriented version of
+        // http::write only works with const messages.
+        http::serializer<isRequest, Body, Fields> sr{msg};
+        http::async_write(stream_, sr, yield_[ec_]);
+    }
+};
+
+// Handles an HTTP server connection
+void
+do_session(
+    beast::ssl_stream<beast::tcp_stream>& stream,
+    std::shared_ptr<std::string const> const& doc_root,
+    net::yield_context yield)
+{
+    bool close = false;
+    beast::error_code ec;
+
+    // Set the timeout.
+    beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+    // Perform the SSL handshake
+    stream.async_handshake(ssl::stream_base::server, yield[ec]);
+    if(ec)
+        return fail(ec, "handshake");
+
+    // This buffer is required to persist across reads
+    beast::flat_buffer buffer;
+
+    // This lambda is used to send messages
+    send_lambda lambda{stream, close, ec, yield};
+
+    for(;;)
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+        // Read a request
+        http::request<http::string_body> req;
+        http::async_read(stream, buffer, req, yield[ec]);
+        if(ec == http::error::end_of_stream)
+            break;
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root, std::move(req), lambda);
+        if(ec)
+            return fail(ec, "write");
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            break;
+        }
+    }
+
+    // Set the timeout.
+    beast::get_lowest_layer(stream).expires_after(std::chrono::seconds(30));
+
+    // Perform the SSL shutdown
+    stream.async_shutdown(yield[ec]);
+    if(ec)
+        return fail(ec, "shutdown");
+
+    // At this point the connection is closed gracefully
+}
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+void
+do_listen(
+    net::io_context& ioc,
+    ssl::context& ctx,
+    tcp::endpoint endpoint,
+    std::shared_ptr<std::string const> const& doc_root,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // Open the acceptor
+    tcp::acceptor acceptor(ioc);
+    acceptor.open(endpoint.protocol(), ec);
+    if(ec)
+        return fail(ec, "open");
+
+    // Allow address reuse
+    acceptor.set_option(net::socket_base::reuse_address(true), ec);
+    if(ec)
+        return fail(ec, "set_option");
+
+    // Bind to the server address
+    acceptor.bind(endpoint, ec);
+    if(ec)
+        return fail(ec, "bind");
+
+    // Start listening for connections
+    acceptor.listen(net::socket_base::max_listen_connections, ec);
+    if(ec)
+        return fail(ec, "listen");
+
+    for(;;)
+    {
+        tcp::socket socket(ioc);
+        acceptor.async_accept(socket, yield[ec]);
+        if(ec)
+            fail(ec, "accept");
+        else
+            boost::asio::spawn(
+                acceptor.get_executor(),
+                std::bind(
+                    &do_session,
+                    beast::ssl_stream<beast::tcp_stream>(
+                        std::move(socket), ctx),
+                    doc_root,
+                    std::placeholders::_1));
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-coro-ssl <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-coro-ssl 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Spawn a listening port
+    boost::asio::spawn(ioc,
+        std::bind(
+            &do_listen,
+            std::ref(ioc),
+            std::ref(ctx),
+            tcp::endpoint{address, port},
+            doc_root,
+            std::placeholders::_1));
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/coro/CMakeLists.txt b/src/boost/libs/beast/example/http/server/coro/CMakeLists.txt
new file mode 100644
index 000000000..6cc8244a8
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/coro/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/server/coro "/")
+
+add_executable (http-server-coro
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_server_coro.cpp
+)
+
+target_link_libraries(http-server-coro
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-server-coro PROPERTY FOLDER "example-http-server")
diff --git a/src/boost/libs/beast/example/http/server/coro/Jamfile b/src/boost/libs/beast/example/http/server/coro/Jamfile
new file mode 100644
index 000000000..600b0fa09
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/coro/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-server-coro :
+    http_server_coro.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/http/server/coro/http_server_coro.cpp b/src/boost/libs/beast/example/http/server/coro/http_server_coro.cpp
new file mode 100644
index 000000000..a8baae640
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/coro/http_server_coro.cpp
@@ -0,0 +1,387 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP server, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// This is the C++11 equivalent of a generic lambda.
+// The function object is used to send an HTTP message.
+struct send_lambda
+{
+    beast::tcp_stream& stream_;
+    bool& close_;
+    beast::error_code& ec_;
+    net::yield_context yield_;
+
+    send_lambda(
+        beast::tcp_stream& stream,
+        bool& close,
+        beast::error_code& ec,
+        net::yield_context yield)
+        : stream_(stream)
+        , close_(close)
+        , ec_(ec)
+        , yield_(yield)
+    {
+    }
+
+    template<bool isRequest, class Body, class Fields>
+    void
+    operator()(http::message<isRequest, Body, Fields>&& msg) const
+    {
+        // Determine if we should close the connection after
+        close_ = msg.need_eof();
+
+        // We need the serializer here because the serializer requires
+        // a non-const file_body, and the message oriented version of
+        // http::write only works with const messages.
+        http::serializer<isRequest, Body, Fields> sr{msg};
+        http::async_write(stream_, sr, yield_[ec_]);
+    }
+};
+
+// Handles an HTTP server connection
+void
+do_session(
+    beast::tcp_stream& stream,
+    std::shared_ptr<std::string const> const& doc_root,
+    net::yield_context yield)
+{
+    bool close = false;
+    beast::error_code ec;
+
+    // This buffer is required to persist across reads
+    beast::flat_buffer buffer;
+
+    // This lambda is used to send messages
+    send_lambda lambda{stream, close, ec, yield};
+
+    for(;;)
+    {
+        // Set the timeout.
+        stream.expires_after(std::chrono::seconds(30));
+
+        // Read a request
+        http::request<http::string_body> req;
+        http::async_read(stream, buffer, req, yield[ec]);
+        if(ec == http::error::end_of_stream)
+            break;
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root, std::move(req), lambda);
+        if(ec)
+            return fail(ec, "write");
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            break;
+        }
+    }
+
+    // Send a TCP shutdown
+    stream.socket().shutdown(tcp::socket::shutdown_send, ec);
+
+    // At this point the connection is closed gracefully
+}
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+void
+do_listen(
+    net::io_context& ioc,
+    tcp::endpoint endpoint,
+    std::shared_ptr<std::string const> const& doc_root,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // Open the acceptor
+    tcp::acceptor acceptor(ioc);
+    acceptor.open(endpoint.protocol(), ec);
+    if(ec)
+        return fail(ec, "open");
+
+    // Allow address reuse
+    acceptor.set_option(net::socket_base::reuse_address(true), ec);
+    if(ec)
+        return fail(ec, "set_option");
+
+    // Bind to the server address
+    acceptor.bind(endpoint, ec);
+    if(ec)
+        return fail(ec, "bind");
+
+    // Start listening for connections
+    acceptor.listen(net::socket_base::max_listen_connections, ec);
+    if(ec)
+        return fail(ec, "listen");
+
+    for(;;)
+    {
+        tcp::socket socket(ioc);
+        acceptor.async_accept(socket, yield[ec]);
+        if(ec)
+            fail(ec, "accept");
+        else
+            boost::asio::spawn(
+                acceptor.get_executor(),
+                std::bind(
+                    &do_session,
+                    beast::tcp_stream(std::move(socket)),
+                    doc_root,
+                    std::placeholders::_1));
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-coro <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-coro 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Spawn a listening port
+    boost::asio::spawn(ioc,
+        std::bind(
+            &do_listen,
+            std::ref(ioc),
+            tcp::endpoint{address, port},
+            doc_root,
+            std::placeholders::_1));
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/fast/CMakeLists.txt b/src/boost/libs/beast/example/http/server/fast/CMakeLists.txt
new file mode 100644
index 000000000..ecc8f7bdc
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/fast/CMakeLists.txt
@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/common common)
+GroupSources(example/http/server/fast "/")
+
+add_executable (http-server-fast
+    ${BOOST_BEAST_FILES}
+    ${COMMON_FILES}
+    Jamfile
+    fields_alloc.hpp
+    http_server_fast.cpp
+)
+
+target_link_libraries(http-server-fast
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-server-fast PROPERTY FOLDER "example-http-server")
diff --git a/src/boost/libs/beast/example/http/server/fast/Jamfile b/src/boost/libs/beast/example/http/server/fast/Jamfile
new file mode 100644
index 000000000..8a9dd44d6
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/fast/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-server-fast :
+    http_server_fast.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/fast/fields_alloc.hpp b/src/boost/libs/beast/example/http/server/fast/fields_alloc.hpp
new file mode 100644
index 000000000..d60c1c499
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/fast/fields_alloc.hpp
@@ -0,0 +1,205 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_FIELDS_ALLOC_HPP
+#define BOOST_BEAST_EXAMPLE_FIELDS_ALLOC_HPP
+
+#include <boost/throw_exception.hpp>
+#include <cstdlib>
+#include <memory>
+#include <stdexcept>
+
+namespace detail {
+
+struct static_pool
+{
+    std::size_t size_;
+    std::size_t refs_ = 1;
+    std::size_t count_ = 0;
+    char* p_;
+
+    char*
+    end()
+    {
+        return reinterpret_cast<char*>(this + 1) + size_;
+    }
+
+    explicit
+    static_pool(std::size_t size)
+        : size_(size)
+        , p_(reinterpret_cast<char*>(this + 1))
+    {
+    }
+
+public:
+    static
+    static_pool&
+    construct(std::size_t size)
+    {
+        auto p = new char[sizeof(static_pool) + size];
+        return *(::new(p) static_pool{size});
+    }
+
+    static_pool&
+    share()
+    {
+        ++refs_;
+        return *this;
+    }
+
+    void
+    destroy()
+    {
+        if(refs_--)
+            return;
+        this->~static_pool();
+        delete[] reinterpret_cast<char*>(this);
+    }
+
+    void*
+    alloc(std::size_t n)
+    {
+        auto last = p_ + n;
+        if(last >= end())
+            BOOST_THROW_EXCEPTION(std::bad_alloc{});
+        ++count_;
+        auto p = p_;
+        p_ = last;
+        return p;
+    }
+
+    void
+    dealloc()
+    {
+        if(--count_)
+            return;
+        p_ = reinterpret_cast<char*>(this + 1);
+    }
+};
+
+} // detail
+
+/** A non-thread-safe allocator optimized for @ref basic_fields.
+
+    This allocator obtains memory from a pre-allocated memory block
+    of a given size. It does nothing in deallocate until all
+    previously allocated blocks are deallocated, upon which it
+    resets the internal memory block for re-use.
+
+    To use this allocator declare an instance persistent to the
+    connection or session, and construct with the block size.
+    A good rule of thumb is 20% more than the maximum allowed
+    header size. For example if the application only allows up
+    to an 8,000 byte header, the block size could be 9,600.
+
+    Then, for every instance of `message` construct the header
+    with a copy of the previously declared allocator instance.
+*/
+template<class T>
+struct fields_alloc
+{
+    detail::static_pool* pool_;
+
+public:
+    using value_type = T;
+    using is_always_equal = std::false_type;
+    using pointer = T*;
+    using reference = T&;
+    using const_pointer = T const*;
+    using const_reference = T const&;
+    using size_type = std::size_t;
+    using difference_type = std::ptrdiff_t;
+
+    template<class U>
+    struct rebind
+    {
+        using other = fields_alloc<U>;
+    };
+
+#if defined(_GLIBCXX_USE_CXX11_ABI) && (_GLIBCXX_USE_CXX11_ABI == 0)
+    // Workaround for g++
+    // basic_string assumes that allocators are default-constructible
+    // See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56437
+    fields_alloc() = default;
+#endif
+
+    explicit
+    fields_alloc(std::size_t size)
+        : pool_(&detail::static_pool::construct(size))
+    {
+    }
+
+    fields_alloc(fields_alloc const& other)
+        : pool_(&other.pool_->share())
+    {
+    }
+
+    template<class U>
+    fields_alloc(fields_alloc<U> const& other)
+        : pool_(&other.pool_->share())
+    {
+    }
+
+    ~fields_alloc()
+    {
+        pool_->destroy();
+    }
+
+    value_type*
+    allocate(size_type n)
+    {
+        return static_cast<value_type*>(
+            pool_->alloc(n * sizeof(T)));
+    }
+
+    void
+    deallocate(value_type*, size_type)
+    {
+        pool_->dealloc();
+    }
+
+#if defined(BOOST_LIBSTDCXX_VERSION) && BOOST_LIBSTDCXX_VERSION < 60000
+    template<class U, class... Args>
+    void
+    construct(U* ptr, Args&&... args)
+    {
+        ::new(static_cast<void*>(ptr)) U(
+            std::forward<Args>(args)...);
+    }
+
+    template<class U>
+    void
+    destroy(U* ptr)
+    {
+        ptr->~U();
+    }
+#endif
+
+    template<class U>
+    friend
+    bool
+    operator==(
+        fields_alloc const& lhs,
+        fields_alloc<U> const& rhs)
+    {
+        return &lhs.pool_ == &rhs.pool_;
+    }
+
+    template<class U>
+    friend
+    bool
+    operator!=(
+        fields_alloc const& lhs,
+        fields_alloc<U> const& rhs)
+    {
+        return ! (lhs == rhs);
+    }
+};
+
+#endif
diff --git a/src/boost/libs/beast/example/http/server/fast/http_server_fast.cpp b/src/boost/libs/beast/example/http/server/fast/http_server_fast.cpp
new file mode 100644
index 000000000..66c27cade
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/fast/http_server_fast.cpp
@@ -0,0 +1,352 @@
+//
+// Copyright (c) 2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP server, fast
+//
+//------------------------------------------------------------------------------
+
+#include "fields_alloc.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio.hpp>
+#include <chrono>
+#include <cstdlib>
+#include <cstring>
+#include <iostream>
+#include <list>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+class http_worker
+{
+public:
+    http_worker(http_worker const&) = delete;
+    http_worker& operator=(http_worker const&) = delete;
+
+    http_worker(tcp::acceptor& acceptor, const std::string& doc_root) :
+        acceptor_(acceptor),
+        doc_root_(doc_root)
+    {
+    }
+
+    void start()
+    {
+        accept();
+        check_deadline();
+    }
+
+private:
+    using alloc_t = fields_alloc<char>;
+    //using request_body_t = http::basic_dynamic_body<beast::flat_static_buffer<1024 * 1024>>;
+    using request_body_t = http::string_body;
+
+    // The acceptor used to listen for incoming connections.
+    tcp::acceptor& acceptor_;
+
+    // The path to the root of the document directory.
+    std::string doc_root_;
+
+    // The socket for the currently connected client.
+    tcp::socket socket_{acceptor_.get_executor()};
+
+    // The buffer for performing reads
+    beast::flat_static_buffer<8192> buffer_;
+
+    // The allocator used for the fields in the request and reply.
+    alloc_t alloc_{8192};
+
+    // The parser for reading the requests
+    boost::optional<http::request_parser<request_body_t, alloc_t>> parser_;
+
+    // The timer putting a time limit on requests.
+    net::steady_timer request_deadline_{
+        acceptor_.get_executor(), (std::chrono::steady_clock::time_point::max)()};
+
+    // The string-based response message.
+    boost::optional<http::response<http::string_body, http::basic_fields<alloc_t>>> string_response_;
+
+    // The string-based response serializer.
+    boost::optional<http::response_serializer<http::string_body, http::basic_fields<alloc_t>>> string_serializer_;
+
+    // The file-based response message.
+    boost::optional<http::response<http::file_body, http::basic_fields<alloc_t>>> file_response_;
+
+    // The file-based response serializer.
+    boost::optional<http::response_serializer<http::file_body, http::basic_fields<alloc_t>>> file_serializer_;
+
+    void accept()
+    {
+        // Clean up any previous connection.
+        beast::error_code ec;
+        socket_.close(ec);
+        buffer_.consume(buffer_.size());
+
+        acceptor_.async_accept(
+            socket_,
+            [this](beast::error_code ec)
+            {
+                if (ec)
+                {
+                    accept();
+                }
+                else
+                {
+                    // Request must be fully processed within 60 seconds.
+                    request_deadline_.expires_after(
+                        std::chrono::seconds(60));
+
+                    read_request();
+                }
+            });
+    }
+
+    void read_request()
+    {
+        // On each read the parser needs to be destroyed and
+        // recreated. We store it in a boost::optional to
+        // achieve that.
+        //
+        // Arguments passed to the parser constructor are
+        // forwarded to the message object. A single argument
+        // is forwarded to the body constructor.
+        //
+        // We construct the dynamic body with a 1MB limit
+        // to prevent vulnerability to buffer attacks.
+        //
+        parser_.emplace(
+            std::piecewise_construct,
+            std::make_tuple(),
+            std::make_tuple(alloc_));
+
+        http::async_read(
+            socket_,
+            buffer_,
+            *parser_,
+            [this](beast::error_code ec, std::size_t)
+            {
+                if (ec)
+                    accept();
+                else
+                    process_request(parser_->get());
+            });
+    }
+
+    void process_request(http::request<request_body_t, http::basic_fields<alloc_t>> const& req)
+    {
+        switch (req.method())
+        {
+        case http::verb::get:
+            send_file(req.target());
+            break;
+
+        default:
+            // We return responses indicating an error if
+            // we do not recognize the request method.
+            send_bad_response(
+                http::status::bad_request,
+                "Invalid request-method '" + std::string(req.method_string()) + "'\r\n");
+            break;
+        }
+    }
+
+    void send_bad_response(
+        http::status status,
+        std::string const& error)
+    {
+        string_response_.emplace(
+            std::piecewise_construct,
+            std::make_tuple(),
+            std::make_tuple(alloc_));
+
+        string_response_->result(status);
+        string_response_->keep_alive(false);
+        string_response_->set(http::field::server, "Beast");
+        string_response_->set(http::field::content_type, "text/plain");
+        string_response_->body() = error;
+        string_response_->prepare_payload();
+
+        string_serializer_.emplace(*string_response_);
+
+        http::async_write(
+            socket_,
+            *string_serializer_,
+            [this](beast::error_code ec, std::size_t)
+            {
+                socket_.shutdown(tcp::socket::shutdown_send, ec);
+                string_serializer_.reset();
+                string_response_.reset();
+                accept();
+            });
+    }
+
+    void send_file(beast::string_view target)
+    {
+        // Request path must be absolute and not contain "..".
+        if (target.empty() || target[0] != '/' || target.find("..") != std::string::npos)
+        {
+            send_bad_response(
+                http::status::not_found,
+                "File not found\r\n");
+            return;
+        }
+
+        std::string full_path = doc_root_;
+        full_path.append(
+            target.data(),
+            target.size());
+
+        http::file_body::value_type file;
+        beast::error_code ec;
+        file.open(
+            full_path.c_str(),
+            beast::file_mode::read,
+            ec);
+        if(ec)
+        {
+            send_bad_response(
+                http::status::not_found,
+                "File not found\r\n");
+            return;
+        }
+
+        file_response_.emplace(
+            std::piecewise_construct,
+            std::make_tuple(),
+            std::make_tuple(alloc_));
+
+        file_response_->result(http::status::ok);
+        file_response_->keep_alive(false);
+        file_response_->set(http::field::server, "Beast");
+        file_response_->set(http::field::content_type, mime_type(std::string(target)));
+        file_response_->body() = std::move(file);
+        file_response_->prepare_payload();
+
+        file_serializer_.emplace(*file_response_);
+
+        http::async_write(
+            socket_,
+            *file_serializer_,
+            [this](beast::error_code ec, std::size_t)
+            {
+                socket_.shutdown(tcp::socket::shutdown_send, ec);
+                file_serializer_.reset();
+                file_response_.reset();
+                accept();
+            });
+    }
+
+    void check_deadline()
+    {
+        // The deadline may have moved, so check it has really passed.
+        if (request_deadline_.expiry() <= std::chrono::steady_clock::now())
+        {
+            // Close socket to cancel any outstanding operation.
+            beast::error_code ec;
+            socket_.close();
+
+            // Sleep indefinitely until we're given a new deadline.
+            request_deadline_.expires_at(
+                std::chrono::steady_clock::time_point::max());
+        }
+
+        request_deadline_.async_wait(
+            [this](beast::error_code)
+            {
+                check_deadline();
+            });
+    }
+};
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        // Check command line arguments.
+        if (argc != 6)
+        {
+            std::cerr << "Usage: http_server_fast <address> <port> <doc_root> <num_workers> {spin|block}\n";
+            std::cerr << "  For IPv4, try:\n";
+            std::cerr << "    http_server_fast 0.0.0.0 80 . 100 block\n";
+            std::cerr << "  For IPv6, try:\n";
+            std::cerr << "    http_server_fast 0::0 80 . 100 block\n";
+            return EXIT_FAILURE;
+        }
+
+        auto const address = net::ip::make_address(argv[1]);
+        unsigned short port = static_cast<unsigned short>(std::atoi(argv[2]));
+        std::string doc_root = argv[3];
+        int num_workers = std::atoi(argv[4]);
+        bool spin = (std::strcmp(argv[5], "spin") == 0);
+
+        net::io_context ioc{1};
+        tcp::acceptor acceptor{ioc, {address, port}};
+
+        std::list<http_worker> workers;
+        for (int i = 0; i < num_workers; ++i)
+        {
+            workers.emplace_back(acceptor, doc_root);
+            workers.back().start();
+        }
+
+        if (spin)
+          for (;;) ioc.poll();
+        else
+          ioc.run();
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+}
diff --git a/src/boost/libs/beast/example/http/server/flex/CMakeLists.txt b/src/boost/libs/beast/example/http/server/flex/CMakeLists.txt
new file mode 100644
index 000000000..0920953b3
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/flex/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/server/flex "/")
+
+    add_executable (http-server-flex
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        http_server_flex.cpp
+    )
+
+    set_property(TARGET http-server-flex PROPERTY FOLDER "example-http-server")
+
+    target_link_libraries (http-server-flex
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/server/flex/Jamfile b/src/boost/libs/beast/example/http/server/flex/Jamfile
new file mode 100644
index 000000000..f094caa27
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/flex/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-server-flex :
+    http_server_flex.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/flex/http_server_flex.cpp b/src/boost/libs/beast/example/http/server/flex/http_server_flex.cpp
new file mode 100644
index 000000000..dd4b4ccd0
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/flex/http_server_flex.cpp
@@ -0,0 +1,712 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP flex server (plain and SSL), asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    // ssl::error::stream_truncated, also known as an SSL "short read",
+    // indicates the peer closed the connection without performing the
+    // required closing handshake (for example, Google does this to
+    // improve performance). Generally this can be a security issue,
+    // but if your communication protocol is self-terminated (as
+    // it is with both HTTP and WebSocket) then you may simply
+    // ignore the lack of close_notify.
+    //
+    // https://github.com/boostorg/beast/issues/38
+    //
+    // https://security.stackexchange.com/questions/91435/how-to-handle-a-malicious-ssl-tls-shutdown
+    //
+    // When a short read would cut off the end of an HTTP message,
+    // Beast returns the error beast::http::error::partial_message.
+    // Therefore, if we see a short read here, it has occurred
+    // after the message has been completed, so it is safe to ignore it.
+
+    if(ec == net::ssl::error::stream_truncated)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Handles an HTTP server connection.
+// This uses the Curiously Recurring Template Pattern so that
+// the same code works with both SSL streams and regular sockets.
+template<class Derived>
+class session
+{
+    // Access the derived class, this is part of
+    // the Curiously Recurring Template Pattern idiom.
+    Derived&
+    derived()
+    {
+        return static_cast<Derived&>(*this);
+    }
+
+    // This is the C++11 equivalent of a generic lambda.
+    // The function object is used to send an HTTP message.
+    struct send_lambda
+    {
+        session& self_;
+
+        explicit
+        send_lambda(session& self)
+            : self_(self)
+        {
+        }
+
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg) const
+        {
+            // The lifetime of the message has to extend
+            // for the duration of the async operation so
+            // we use a shared_ptr to manage it.
+            auto sp = std::make_shared<
+                http::message<isRequest, Body, Fields>>(std::move(msg));
+
+            // Store a type-erased version of the shared
+            // pointer in the class to keep it alive.
+            self_.res_ = sp;
+
+            // Write the response
+            http::async_write(
+                self_.derived().stream(),
+                *sp,
+                beast::bind_front_handler(
+                    &session::on_write,
+                    self_.derived().shared_from_this(),
+                    sp->need_eof()));
+        }
+    };
+
+    std::shared_ptr<std::string const> doc_root_;
+    http::request<http::string_body> req_;
+    std::shared_ptr<void> res_;
+    send_lambda lambda_;
+
+protected:
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the buffer
+    session(
+        beast::flat_buffer buffer,
+        std::shared_ptr<std::string const> const& doc_root)
+        : doc_root_(doc_root)
+        , lambda_(*this)
+        , buffer_(std::move(buffer))
+    {
+    }
+
+    void
+    do_read()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(
+            derived().stream()).expires_after(std::chrono::seconds(30));
+
+        // Read a request
+        http::async_read(
+            derived().stream(),
+            buffer_,
+            req_,
+            beast::bind_front_handler(
+                &session::on_read,
+                derived().shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This means they closed the connection
+        if(ec == http::error::end_of_stream)
+            return derived().do_eof();
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root_, std::move(req_), lambda_);
+    }
+
+    void
+    on_write(
+        bool close,
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            return derived().do_eof();
+        }
+
+        // We're done with the response so delete it
+        res_ = nullptr;
+
+        // Read another request
+        do_read();
+    }
+};
+
+// Handles a plain HTTP connection
+class plain_session
+    : public session<plain_session>
+    , public std::enable_shared_from_this<plain_session>
+{
+    beast::tcp_stream stream_;
+
+public:
+    // Create the session
+    plain_session(
+        tcp::socket&& socket,
+        beast::flat_buffer buffer,
+        std::shared_ptr<std::string const> const& doc_root)
+        : session<plain_session>(
+            std::move(buffer),
+            doc_root)
+        , stream_(std::move(socket))
+    {
+    }
+
+    // Called by the base class
+    beast::tcp_stream&
+    stream()
+    {
+        return stream_;
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(stream_.get_executor(),
+                      beast::bind_front_handler(
+                          &session::do_read,
+                          shared_from_this()));
+    }
+
+    void
+    do_eof()
+    {
+        // Send a TCP shutdown
+        beast::error_code ec;
+        stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+// Handles an SSL HTTP connection
+class ssl_session
+    : public session<ssl_session>
+    , public std::enable_shared_from_this<ssl_session>
+{
+    beast::ssl_stream<beast::tcp_stream> stream_;
+
+public:
+    // Create the session
+    ssl_session(
+        tcp::socket&& socket,
+        ssl::context& ctx,
+        beast::flat_buffer buffer,
+        std::shared_ptr<std::string const> const& doc_root)
+        : session<ssl_session>(
+            std::move(buffer),
+            doc_root)
+        , stream_(std::move(socket), ctx)
+    {
+    }
+
+    // Called by the base class
+    beast::ssl_stream<beast::tcp_stream>&
+    stream()
+    {
+        return stream_;
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        auto self = shared_from_this();
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session.
+        net::dispatch(stream_.get_executor(), [self]() {
+            // Set the timeout.
+            beast::get_lowest_layer(self->stream_).expires_after(
+                std::chrono::seconds(30));
+
+            // Perform the SSL handshake
+            // Note, this is the buffered version of the handshake.
+            self->stream_.async_handshake(
+                ssl::stream_base::server,
+                self->buffer_.data(),
+                beast::bind_front_handler(
+                    &ssl_session::on_handshake,
+                    self));
+        });
+    }
+
+    void
+    on_handshake(
+        beast::error_code ec,
+        std::size_t bytes_used)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Consume the portion of the buffer used by the handshake
+        buffer_.consume(bytes_used);
+
+        do_read();
+    }
+
+    void
+    do_eof()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Perform the SSL shutdown
+        stream_.async_shutdown(
+            beast::bind_front_handler(
+                &ssl_session::on_shutdown,
+                shared_from_this()));
+    }
+
+    void
+    on_shutdown(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "shutdown");
+
+        // At this point the connection is closed gracefully
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Detects SSL handshakes
+class detect_session : public std::enable_shared_from_this<detect_session>
+{
+    beast::tcp_stream stream_;
+    ssl::context& ctx_;
+    std::shared_ptr<std::string const> doc_root_;
+    beast::flat_buffer buffer_;
+
+public:
+    detect_session(
+        tcp::socket&& socket,
+        ssl::context& ctx,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket))
+        , ctx_(ctx)
+        , doc_root_(doc_root)
+    {
+    }
+
+    // Launch the detector
+    void
+    run()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+        // Detect a TLS handshake
+        async_detect_ssl(
+            stream_,
+            buffer_,
+            beast::bind_front_handler(
+                &detect_session::on_detect,
+                shared_from_this()));
+    }
+
+    void
+    on_detect(beast::error_code ec, bool result)
+    {
+        if(ec)
+            return fail(ec, "detect");
+
+        if(result)
+        {
+            // Launch SSL session
+            std::make_shared<ssl_session>(
+                stream_.release_socket(),
+                ctx_,
+                std::move(buffer_),
+                doc_root_)->run();
+            return;
+        }
+
+        // Launch plain session
+        std::make_shared<plain_session>(
+            stream_.release_socket(),
+            std::move(buffer_),
+            doc_root_)->run();
+    }
+};
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    ssl::context& ctx_;
+    tcp::acceptor acceptor_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        ssl::context& ctx,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , ctx_(ctx)
+        , acceptor_(net::make_strand(ioc))
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the detector session and run it
+            std::make_shared<detect_session>(
+                std::move(socket),
+                ctx_,
+                doc_root_)->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-flex <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-flex 0.0.0.0 8080 .\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        ctx,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/small/CMakeLists.txt b/src/boost/libs/beast/example/http/server/small/CMakeLists.txt
new file mode 100644
index 000000000..c443dec5c
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/small/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/server/small "/")
+
+add_executable (http-server-small
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_server_small.cpp
+)
+
+target_link_libraries(http-server-small
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-server-small PROPERTY FOLDER "example-http-server")
diff --git a/src/boost/libs/beast/example/http/server/small/Jamfile b/src/boost/libs/beast/example/http/server/small/Jamfile
new file mode 100644
index 000000000..48e9fd138
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/small/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-server-small :
+    http_server_small.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/small/http_server_small.cpp b/src/boost/libs/beast/example/http/server/small/http_server_small.cpp
new file mode 100644
index 000000000..53b6a2b3e
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/small/http_server_small.cpp
@@ -0,0 +1,251 @@
+//
+// Copyright (c) 2017 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP server, small
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio.hpp>
+#include <chrono>
+#include <cstdlib>
+#include <ctime>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+namespace my_program_state
+{
+    std::size_t
+    request_count()
+    {
+        static std::size_t count = 0;
+        return ++count;
+    }
+
+    std::time_t
+    now()
+    {
+        return std::time(0);
+    }
+}
+
+class http_connection : public std::enable_shared_from_this<http_connection>
+{
+public:
+    http_connection(tcp::socket socket)
+        : socket_(std::move(socket))
+    {
+    }
+
+    // Initiate the asynchronous operations associated with the connection.
+    void
+    start()
+    {
+        read_request();
+        check_deadline();
+    }
+
+private:
+    // The socket for the currently connected client.
+    tcp::socket socket_;
+
+    // The buffer for performing reads.
+    beast::flat_buffer buffer_{8192};
+
+    // The request message.
+    http::request<http::dynamic_body> request_;
+
+    // The response message.
+    http::response<http::dynamic_body> response_;
+
+    // The timer for putting a deadline on connection processing.
+    net::steady_timer deadline_{
+        socket_.get_executor(), std::chrono::seconds(60)};
+
+    // Asynchronously receive a complete request message.
+    void
+    read_request()
+    {
+        auto self = shared_from_this();
+
+        http::async_read(
+            socket_,
+            buffer_,
+            request_,
+            [self](beast::error_code ec,
+                std::size_t bytes_transferred)
+            {
+                boost::ignore_unused(bytes_transferred);
+                if(!ec)
+                    self->process_request();
+            });
+    }
+
+    // Determine what needs to be done with the request message.
+    void
+    process_request()
+    {
+        response_.version(request_.version());
+        response_.keep_alive(false);
+
+        switch(request_.method())
+        {
+        case http::verb::get:
+            response_.result(http::status::ok);
+            response_.set(http::field::server, "Beast");
+            create_response();
+            break;
+
+        default:
+            // We return responses indicating an error if
+            // we do not recognize the request method.
+            response_.result(http::status::bad_request);
+            response_.set(http::field::content_type, "text/plain");
+            beast::ostream(response_.body())
+                << "Invalid request-method '"
+                << std::string(request_.method_string())
+                << "'";
+            break;
+        }
+
+        write_response();
+    }
+
+    // Construct a response message based on the program state.
+    void
+    create_response()
+    {
+        if(request_.target() == "/count")
+        {
+            response_.set(http::field::content_type, "text/html");
+            beast::ostream(response_.body())
+                << "<html>\n"
+                <<  "<head><title>Request count</title></head>\n"
+                <<  "<body>\n"
+                <<  "<h1>Request count</h1>\n"
+                <<  "<p>There have been "
+                <<  my_program_state::request_count()
+                <<  " requests so far.</p>\n"
+                <<  "</body>\n"
+                <<  "</html>\n";
+        }
+        else if(request_.target() == "/time")
+        {
+            response_.set(http::field::content_type, "text/html");
+            beast::ostream(response_.body())
+                <<  "<html>\n"
+                <<  "<head><title>Current time</title></head>\n"
+                <<  "<body>\n"
+                <<  "<h1>Current time</h1>\n"
+                <<  "<p>The current time is "
+                <<  my_program_state::now()
+                <<  " seconds since the epoch.</p>\n"
+                <<  "</body>\n"
+                <<  "</html>\n";
+        }
+        else
+        {
+            response_.result(http::status::not_found);
+            response_.set(http::field::content_type, "text/plain");
+            beast::ostream(response_.body()) << "File not found\r\n";
+        }
+    }
+
+    // Asynchronously transmit the response message.
+    void
+    write_response()
+    {
+        auto self = shared_from_this();
+
+        response_.set(http::field::content_length, response_.body().size());
+
+        http::async_write(
+            socket_,
+            response_,
+            [self](beast::error_code ec, std::size_t)
+            {
+                self->socket_.shutdown(tcp::socket::shutdown_send, ec);
+                self->deadline_.cancel();
+            });
+    }
+
+    // Check whether we have spent enough time on this connection.
+    void
+    check_deadline()
+    {
+        auto self = shared_from_this();
+
+        deadline_.async_wait(
+            [self](beast::error_code ec)
+            {
+                if(!ec)
+                {
+                    // Close socket to cancel any outstanding operation.
+                    self->socket_.close(ec);
+                }
+            });
+    }
+};
+
+// "Loop" forever accepting new connections.
+void
+http_server(tcp::acceptor& acceptor, tcp::socket& socket)
+{
+  acceptor.async_accept(socket,
+      [&](beast::error_code ec)
+      {
+          if(!ec)
+              std::make_shared<http_connection>(std::move(socket))->start();
+          http_server(acceptor, socket);
+      });
+}
+
+int
+main(int argc, char* argv[])
+{
+    try
+    {
+        // Check command line arguments.
+        if(argc != 3)
+        {
+            std::cerr << "Usage: " << argv[0] << " <address> <port>\n";
+            std::cerr << "  For IPv4, try:\n";
+            std::cerr << "    receiver 0.0.0.0 80\n";
+            std::cerr << "  For IPv6, try:\n";
+            std::cerr << "    receiver 0::0 80\n";
+            return EXIT_FAILURE;
+        }
+
+        auto const address = net::ip::make_address(argv[1]);
+        unsigned short port = static_cast<unsigned short>(std::atoi(argv[2]));
+
+        net::io_context ioc{1};
+
+        tcp::acceptor acceptor{ioc, {address, port}};
+        tcp::socket socket{ioc};
+        http_server(acceptor, socket);
+
+        ioc.run();
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+}
diff --git a/src/boost/libs/beast/example/http/server/stackless-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/server/stackless-ssl/CMakeLists.txt
new file mode 100644
index 000000000..f25b9b3d6
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/stackless-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/server/stackless-ssl "/")
+
+    add_executable (http-server-stackless-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        http_server_stackless_ssl.cpp
+    )
+
+    set_property(TARGET http-server-stackless-ssl PROPERTY FOLDER "example-http-server")
+
+    target_link_libraries (http-server-stackless-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/server/stackless-ssl/Jamfile b/src/boost/libs/beast/example/http/server/stackless-ssl/Jamfile
new file mode 100644
index 000000000..b47524646
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/stackless-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-server-stackless-ssl :
+    http_server_stackless_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp b/src/boost/libs/beast/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp
new file mode 100644
index 000000000..7786cbb42
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp
@@ -0,0 +1,560 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL server, stackless coroutine
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/coroutine.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    // ssl::error::stream_truncated, also known as an SSL "short read",
+    // indicates the peer closed the connection without performing the
+    // required closing handshake (for example, Google does this to
+    // improve performance). Generally this can be a security issue,
+    // but if your communication protocol is self-terminated (as
+    // it is with both HTTP and WebSocket) then you may simply
+    // ignore the lack of close_notify.
+    //
+    // https://github.com/boostorg/beast/issues/38
+    //
+    // https://security.stackexchange.com/questions/91435/how-to-handle-a-malicious-ssl-tls-shutdown
+    //
+    // When a short read would cut off the end of an HTTP message,
+    // Beast returns the error beast::http::error::partial_message.
+    // Therefore, if we see a short read here, it has occurred
+    // after the message has been completed, so it is safe to ignore it.
+
+    if(ec == net::ssl::error::stream_truncated)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Handles an HTTP server connection
+class session
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<session>
+{
+    // This is the C++11 equivalent of a generic lambda.
+    // The function object is used to send an HTTP message.
+    struct send_lambda
+    {
+        session& self_;
+
+        explicit
+        send_lambda(session& self)
+            : self_(self)
+        {
+        }
+
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg) const
+        {
+            // The lifetime of the message has to extend
+            // for the duration of the async operation so
+            // we use a shared_ptr to manage it.
+            auto sp = std::make_shared<
+                http::message<isRequest, Body, Fields>>(std::move(msg));
+
+            // Store a type-erased version of the shared
+            // pointer in the class to keep it alive.
+            self_.res_ = sp;
+
+            // Write the response
+            http::async_write(
+                self_.stream_,
+                *sp,
+                std::bind(
+                    &session::loop,
+                    self_.shared_from_this(),
+                    std::placeholders::_1,
+                    std::placeholders::_2,
+                    sp->need_eof()));
+        }
+    };
+
+    beast::ssl_stream<beast::tcp_stream> stream_;
+    beast::flat_buffer buffer_;
+    std::shared_ptr<std::string const> doc_root_;
+    http::request<http::string_body> req_;
+    std::shared_ptr<void> res_;
+    send_lambda lambda_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    session(
+        tcp::socket&& socket,
+        ssl::context& ctx,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket), ctx)
+        , doc_root_(doc_root)
+        , lambda_(*this)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session.Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(stream_.get_executor(),
+                      beast::bind_front_handler(&session::loop,
+                                                shared_from_this(),
+                                                beast::error_code{},
+                                                0,
+                                                false));
+    }
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(
+        beast::error_code ec,
+        std::size_t bytes_transferred,
+        bool close)
+    {
+        boost::ignore_unused(bytes_transferred);
+        reenter(*this)
+        {
+            // Set the timeout.
+            beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+            // Perform the SSL handshake
+            yield stream_.async_handshake(
+                ssl::stream_base::server,
+                std::bind(
+                    &session::loop,
+                    shared_from_this(),
+                    std::placeholders::_1,
+                    0,
+                    false));
+            if(ec)
+                return fail(ec, "handshake");
+
+            for(;;)
+            {
+                // Set the timeout.
+                beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+                // Make the request empty before reading,
+                // otherwise the operation behavior is undefined.
+                req_ = {};
+
+                // Read a request
+                yield http::async_read(stream_, buffer_, req_,
+                    std::bind(
+                        &session::loop,
+                        shared_from_this(),
+                        std::placeholders::_1,
+                        std::placeholders::_2,
+                        false));
+                if(ec == http::error::end_of_stream)
+                {
+                    // The remote host closed the connection
+                    break;
+                }
+                if(ec)
+                    return fail(ec, "read");
+
+                // Send the response
+                yield handle_request(*doc_root_, std::move(req_), lambda_);
+                if(ec)
+                    return fail(ec, "write");
+                if(close)
+                {
+                    // This means we should close the connection, usually because
+                    // the response indicated the "Connection: close" semantic.
+                    break;
+                }
+
+                // We're done with the response so delete it
+                res_ = nullptr;
+            }
+
+            // Set the timeout.
+            beast::get_lowest_layer(stream_).expires_after(std::chrono::seconds(30));
+
+            // Perform the SSL shutdown
+            yield stream_.async_shutdown(
+                std::bind(
+                    &session::loop,
+                    shared_from_this(),
+                    std::placeholders::_1,
+                    0,
+                    false));
+            if(ec)
+                return fail(ec, "shutdown");
+
+            // At this point the connection is closed gracefully
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    ssl::context& ctx_;
+    tcp::acceptor acceptor_;
+    tcp::socket socket_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        ssl::context& ctx,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , ctx_(ctx)
+        , acceptor_(net::make_strand(ioc))
+        , socket_(net::make_strand(ioc))
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        loop();
+    }
+
+private:
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(beast::error_code ec = {})
+    {
+        reenter(*this)
+        {
+            for(;;)
+            {
+                yield acceptor_.async_accept(
+                    socket_,
+                    std::bind(
+                        &listener::loop,
+                        shared_from_this(),
+                        std::placeholders::_1));
+                if(ec)
+                {
+                    fail(ec, "accept");
+                }
+                else
+                {
+                    // Create the session and run it
+                    std::make_shared<session>(
+                        std::move(socket_),
+                        ctx_,
+                        doc_root_)->run();
+                }
+
+                // Make sure each session gets its own strand
+                socket_ = tcp::socket(net::make_strand(ioc_));
+            }
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-stackless-ssl <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-stackless-ssl 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        ctx,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/stackless/CMakeLists.txt b/src/boost/libs/beast/example/http/server/stackless/CMakeLists.txt
new file mode 100644
index 000000000..1f82d391f
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/stackless/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/server/stackless "/")
+
+add_executable (http-server-stackless
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_server_stackless.cpp
+)
+
+target_link_libraries(http-server-stackless
+    lib-asio
+    lib-beast)
+
+set_property(TARGET http-server-stackless PROPERTY FOLDER "example-http-server")
diff --git a/src/boost/libs/beast/example/http/server/stackless/Jamfile b/src/boost/libs/beast/example/http/server/stackless/Jamfile
new file mode 100644
index 000000000..f82934ff8
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/stackless/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-server-stackless :
+    http_server_stackless.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/stackless/http_server_stackless.cpp b/src/boost/libs/beast/example/http/server/stackless/http_server_stackless.cpp
new file mode 100644
index 000000000..2439c6894
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/stackless/http_server_stackless.cpp
@@ -0,0 +1,493 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP server, stackless coroutine
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/coroutine.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/config.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Handles an HTTP server connection
+class session
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<session>
+{
+    // This is the C++11 equivalent of a generic lambda.
+    // The function object is used to send an HTTP message.
+    struct send_lambda
+    {
+        session& self_;
+        std::shared_ptr<void> res_;
+
+        explicit
+        send_lambda(session& self)
+            : self_(self)
+        {
+        }
+
+        template<bool isRequest, class Body, class Fields>
+        void
+        operator()(http::message<isRequest, Body, Fields>&& msg) const
+        {
+            // The lifetime of the message has to extend
+            // for the duration of the async operation so
+            // we use a shared_ptr to manage it.
+            auto sp = std::make_shared<
+                http::message<isRequest, Body, Fields>>(std::move(msg));
+
+            // Store a type-erased version of the shared
+            // pointer in the class to keep it alive.
+            self_.res_ = sp;
+
+            // Write the response
+            http::async_write(
+                self_.stream_,
+                *sp,
+                beast::bind_front_handler(
+                    &session::loop,
+                    self_.shared_from_this(),
+                    sp->need_eof()));
+        }
+    };
+
+    beast::tcp_stream stream_;
+    beast::flat_buffer buffer_;
+    std::shared_ptr<std::string const> doc_root_;
+    http::request<http::string_body> req_;
+    std::shared_ptr<void> res_;
+    send_lambda lambda_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    session(
+        tcp::socket&& socket,
+        std::shared_ptr<std::string const> const& doc_root)
+        : stream_(std::move(socket))
+        , doc_root_(doc_root)
+        , lambda_(*this)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(stream_.get_executor(),
+                      beast::bind_front_handler(&session::loop,
+                                                shared_from_this(),
+                                                false,
+                                                beast::error_code{},
+                                                0));
+    }
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(
+        bool close,
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+        reenter(*this)
+        {
+            for(;;)
+            {
+                // Make the request empty before reading,
+                // otherwise the operation behavior is undefined.
+                req_ = {};
+
+                // Set the timeout.
+                stream_.expires_after(std::chrono::seconds(30));
+
+                // Read a request
+                yield http::async_read(stream_, buffer_, req_,
+                    beast::bind_front_handler(
+                        &session::loop,
+                        shared_from_this(),
+                        false));
+                if(ec == http::error::end_of_stream)
+                {
+                    // The remote host closed the connection
+                    break;
+                }
+                if(ec)
+                    return fail(ec, "read");
+
+                // Send the response
+                yield handle_request(*doc_root_, std::move(req_), lambda_);
+                if(ec)
+                    return fail(ec, "write");
+                if(close)
+                {
+                    // This means we should close the connection, usually because
+                    // the response indicated the "Connection: close" semantic.
+                    break;
+                }
+
+                // We're done with the response so delete it
+                res_ = nullptr;
+            }
+
+            // Send a TCP shutdown
+            stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+
+            // At this point the connection is closed gracefully
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+    tcp::socket socket_;
+    std::shared_ptr<std::string const> doc_root_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint,
+        std::shared_ptr<std::string const> const& doc_root)
+        : ioc_(ioc)
+        , acceptor_(net::make_strand(ioc))
+        , socket_(net::make_strand(ioc))
+        , doc_root_(doc_root)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        loop();
+    }
+
+private:
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(beast::error_code ec = {})
+    {
+        reenter(*this)
+        {
+            for(;;)
+            {
+                yield acceptor_.async_accept(
+                    socket_,
+                    beast::bind_front_handler(
+                        &listener::loop,
+                        shared_from_this()));
+                if(ec)
+                {
+                    fail(ec, "accept");
+                }
+                else
+                {
+                    // Create the session and run it
+                    std::make_shared<session>(
+                        std::move(socket_),
+                        doc_root_)->run();
+                }
+
+                // Make sure each session gets its own strand
+                socket_ = tcp::socket(net::make_strand(ioc_));
+            }
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: http-server-stackless <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    http-server-stackless 0.0.0.0 8080 . 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const doc_root = std::make_shared<std::string>(argv[3]);
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Create and launch a listening port
+    std::make_shared<listener>(
+        ioc,
+        tcp::endpoint{address, port},
+        doc_root)->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/http/server/sync-ssl/CMakeLists.txt b/src/boost/libs/beast/example/http/server/sync-ssl/CMakeLists.txt
new file mode 100644
index 000000000..4142e2c95
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/sync-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/http/server/sync-ssl "/")
+
+    add_executable (http-server-sync-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        http_server_sync_ssl.cpp
+    )
+
+    set_property(TARGET http-server-sync-ssl PROPERTY FOLDER "example-http-server")
+    
+    target_link_libraries (http-server-sync-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/http/server/sync-ssl/Jamfile b/src/boost/libs/beast/example/http/server/sync-ssl/Jamfile
new file mode 100644
index 000000000..0ad5e57f5
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/sync-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe http-server-sync-ssl :
+    http_server_sync_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/sync-ssl/http_server_sync_ssl.cpp b/src/boost/libs/beast/example/http/server/sync-ssl/http_server_sync_ssl.cpp
new file mode 100644
index 000000000..34b277530
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/sync-ssl/http_server_sync_ssl.cpp
@@ -0,0 +1,356 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP SSL server, synchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/ssl/stream.hpp>
+#include <boost/config.hpp>
+#include <cstdlib>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// This is the C++11 equivalent of a generic lambda.
+// The function object is used to send an HTTP message.
+template<class Stream>
+struct send_lambda
+{
+    Stream& stream_;
+    bool& close_;
+    beast::error_code& ec_;
+
+    explicit
+    send_lambda(
+        Stream& stream,
+        bool& close,
+        beast::error_code& ec)
+        : stream_(stream)
+        , close_(close)
+        , ec_(ec)
+    {
+    }
+
+    template<bool isRequest, class Body, class Fields>
+    void
+    operator()(http::message<isRequest, Body, Fields>&& msg) const
+    {
+        // Determine if we should close the connection after
+        close_ = msg.need_eof();
+
+        // We need the serializer here because the serializer requires
+        // a non-const file_body, and the message oriented version of
+        // http::write only works with const messages.
+        http::serializer<isRequest, Body, Fields> sr{msg};
+        http::write(stream_, sr, ec_);
+    }
+};
+
+// Handles an HTTP server connection
+void
+do_session(
+    tcp::socket& socket,
+    ssl::context& ctx,
+    std::shared_ptr<std::string const> const& doc_root)
+{
+    bool close = false;
+    beast::error_code ec;
+
+    // Construct the stream around the socket
+    beast::ssl_stream<tcp::socket&> stream{socket, ctx};
+
+    // Perform the SSL handshake
+    stream.handshake(ssl::stream_base::server, ec);
+    if(ec)
+        return fail(ec, "handshake");
+
+    // This buffer is required to persist across reads
+    beast::flat_buffer buffer;
+
+    // This lambda is used to send messages
+    send_lambda<beast::ssl_stream<tcp::socket&>> lambda{stream, close, ec};
+
+    for(;;)
+    {
+        // Read a request
+        http::request<http::string_body> req;
+        http::read(stream, buffer, req, ec);
+        if(ec == http::error::end_of_stream)
+            break;
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root, std::move(req), lambda);
+        if(ec)
+            return fail(ec, "write");
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            break;
+        }
+    }
+
+    // Perform the SSL shutdown
+    stream.shutdown(ec);
+    if(ec)
+        return fail(ec, "shutdown");
+
+    // At this point the connection is closed gracefully
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        // Check command line arguments.
+        if (argc != 4)
+        {
+            std::cerr <<
+                "Usage: http-server-sync-ssl <address> <port> <doc_root>\n" <<
+                "Example:\n" <<
+                "    http-server-sync-ssl 0.0.0.0 8080 .\n";
+            return EXIT_FAILURE;
+        }
+        auto const address = net::ip::make_address(argv[1]);
+        auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+        auto const doc_root = std::make_shared<std::string>(argv[3]);
+
+        // The io_context is required for all I/O
+        net::io_context ioc{1};
+
+        // The SSL context is required, and holds certificates
+        ssl::context ctx{ssl::context::tlsv12};
+
+        // This holds the self-signed certificate used by the server
+        load_server_certificate(ctx);
+
+        // The acceptor receives incoming connections
+        tcp::acceptor acceptor{ioc, {address, port}};
+        for(;;)
+        {
+            // This will receive the new connection
+            tcp::socket socket{ioc};
+
+            // Block until we get a connection
+            acceptor.accept(socket);
+
+            // Launch the session, transferring ownership of the socket
+            std::thread{std::bind(
+                &do_session,
+                std::move(socket),
+                std::ref(ctx),
+                doc_root)}.detach();
+        }
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+}
diff --git a/src/boost/libs/beast/example/http/server/sync/CMakeLists.txt b/src/boost/libs/beast/example/http/server/sync/CMakeLists.txt
new file mode 100644
index 000000000..250add773
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/sync/CMakeLists.txt
@@ -0,0 +1,24 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/http/server/sync "/")
+
+add_executable (http-server-sync
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    http_server_sync.cpp
+)
+
+target_link_libraries(http-server-sync
+    lib-asio
+    lib-asio-ssl
+    lib-beast)
+
+set_property(TARGET http-server-sync PROPERTY FOLDER "example-http-server")
diff --git a/src/boost/libs/beast/example/http/server/sync/Jamfile b/src/boost/libs/beast/example/http/server/sync/Jamfile
new file mode 100644
index 000000000..30e4f026b
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/sync/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe http-server-sync :
+    http_server_sync.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/http/server/sync/http_server_sync.cpp b/src/boost/libs/beast/example/http/server/sync/http_server_sync.cpp
new file mode 100644
index 000000000..2c5ca60fb
--- /dev/null
+++ b/src/boost/libs/beast/example/http/server/sync/http_server_sync.cpp
@@ -0,0 +1,335 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: HTTP server, synchronous
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/config.hpp>
+#include <cstdlib>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+	if (base.empty())
+		return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == beast::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// This is the C++11 equivalent of a generic lambda.
+// The function object is used to send an HTTP message.
+template<class Stream>
+struct send_lambda
+{
+    Stream& stream_;
+    bool& close_;
+    beast::error_code& ec_;
+
+    explicit
+    send_lambda(
+        Stream& stream,
+        bool& close,
+        beast::error_code& ec)
+        : stream_(stream)
+        , close_(close)
+        , ec_(ec)
+    {
+    }
+
+    template<bool isRequest, class Body, class Fields>
+    void
+    operator()(http::message<isRequest, Body, Fields>&& msg) const
+    {
+        // Determine if we should close the connection after
+        close_ = msg.need_eof();
+
+        // We need the serializer here because the serializer requires
+        // a non-const file_body, and the message oriented version of
+        // http::write only works with const messages.
+        http::serializer<isRequest, Body, Fields> sr{msg};
+        http::write(stream_, sr, ec_);
+    }
+};
+
+// Handles an HTTP server connection
+void
+do_session(
+    tcp::socket& socket,
+    std::shared_ptr<std::string const> const& doc_root)
+{
+    bool close = false;
+    beast::error_code ec;
+
+    // This buffer is required to persist across reads
+    beast::flat_buffer buffer;
+
+    // This lambda is used to send messages
+    send_lambda<tcp::socket> lambda{socket, close, ec};
+
+    for(;;)
+    {
+        // Read a request
+        http::request<http::string_body> req;
+        http::read(socket, buffer, req, ec);
+        if(ec == http::error::end_of_stream)
+            break;
+        if(ec)
+            return fail(ec, "read");
+
+        // Send the response
+        handle_request(*doc_root, std::move(req), lambda);
+        if(ec)
+            return fail(ec, "write");
+        if(close)
+        {
+            // This means we should close the connection, usually because
+            // the response indicated the "Connection: close" semantic.
+            break;
+        }
+    }
+
+    // Send a TCP shutdown
+    socket.shutdown(tcp::socket::shutdown_send, ec);
+
+    // At this point the connection is closed gracefully
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        // Check command line arguments.
+        if (argc != 4)
+        {
+            std::cerr <<
+                "Usage: http-server-sync <address> <port> <doc_root>\n" <<
+                "Example:\n" <<
+                "    http-server-sync 0.0.0.0 8080 .\n";
+            return EXIT_FAILURE;
+        }
+        auto const address = net::ip::make_address(argv[1]);
+        auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+        auto const doc_root = std::make_shared<std::string>(argv[3]);
+
+        // The io_context is required for all I/O
+        net::io_context ioc{1};
+
+        // The acceptor receives incoming connections
+        tcp::acceptor acceptor{ioc, {address, port}};
+        for(;;)
+        {
+            // This will receive the new connection
+            tcp::socket socket{ioc};
+
+            // Block until we get a connection
+            acceptor.accept(socket);
+
+            // Launch the session, transferring ownership of the socket
+            std::thread{std::bind(
+                &do_session,
+                std::move(socket),
+                doc_root)}.detach();
+        }
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+}
diff --git a/src/boost/libs/beast/example/websocket/CMakeLists.txt b/src/boost/libs/beast/example/websocket/CMakeLists.txt
new file mode 100644
index 000000000..d38604dd0
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/CMakeLists.txt
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (client)
+add_subdirectory (server)
diff --git a/src/boost/libs/beast/example/websocket/Jamfile b/src/boost/libs/beast/example/websocket/Jamfile
new file mode 100644
index 000000000..32f2c5144
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/Jamfile
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project client ;
+build-project server ;
diff --git a/src/boost/libs/beast/example/websocket/client/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/CMakeLists.txt
new file mode 100644
index 000000000..5d1300e2a
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/CMakeLists.txt
@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (async)
+add_subdirectory (coro)
+add_subdirectory (sync)
+
+if (OPENSSL_FOUND)
+    add_subdirectory (async-ssl)
+    add_subdirectory (async-ssl-system-executor)
+    add_subdirectory (coro-ssl)
+    add_subdirectory (sync-ssl)
+endif()
diff --git a/src/boost/libs/beast/example/websocket/client/Jamfile b/src/boost/libs/beast/example/websocket/client/Jamfile
new file mode 100644
index 000000000..94a458110
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/Jamfile
@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project async ;
+build-project coro ;
+build-project sync ;
+
+# SSL
+build-project async-ssl ;
+build-project async-ssl-system-executor ;
+build-project coro-ssl ;
+build-project sync-ssl ;
diff --git a/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/CMakeLists.txt
new file mode 100644
index 000000000..3a22aade8
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/client/async-ssl-system-executor "/")
+
+    add_executable (websocket-client-async-ssl-system-executor
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        websocket_client_async_ssl_system_executor.cpp
+    )
+
+    set_property(TARGET websocket-client-async-ssl-system-executor PROPERTY FOLDER "example-websocket-client")
+
+    target_link_libraries (websocket-client-async-ssl-system-executor
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/Jamfile b/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/Jamfile
new file mode 100644
index 000000000..770a93c7d
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-client-async-ssl-system-executor :
+    websocket_client_async_ssl_system_executor.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/websocket_client_async_ssl_system_executor.cpp b/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/websocket_client_async_ssl_system_executor.cpp
new file mode 100644
index 000000000..40d19fd00
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async-ssl-system-executor/websocket_client_async_ssl_system_executor.cpp
@@ -0,0 +1,259 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL client, asynchronous, using system_executor
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/system_executor.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Sends a WebSocket message and prints the response
+class session : public std::enable_shared_from_this<session>
+{
+    tcp::resolver resolver_;
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>> ws_;
+    beast::flat_buffer buffer_;
+    std::string host_;
+    std::string text_;
+
+    // Objects are constructed with a strand to
+    // ensure that handlers do not execute concurrently.
+    session(net::strand<net::system_executor> ex, ssl::context& ctx)
+        : resolver_(ex)
+        , ws_(ex, ctx)
+    {
+    }
+public:
+    // Delegate construction to a prive constructor to be able to use
+    // the same strand for both I/O objects.
+    explicit
+    session(ssl::context& ctx)
+        : session(net::make_strand(net::system_executor{}), ctx)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run(
+        char const* host,
+        char const* port,
+        char const* text)
+    {
+        // Save these for later
+        host_ = host;
+        text_ = text;
+
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            port,
+            beast::bind_front_handler(
+                &session::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+            return fail(ec, "resolve");
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+        // Make the connection on the IP address we get from a lookup
+        beast::get_lowest_layer(ws_).async_connect(
+            results,
+            beast::bind_front_handler(
+                &session::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type ep)
+    {
+        if(ec)
+            return fail(ec, "connect");
+
+        // Update the host_ string. This will provide the value of the
+        // Host HTTP header during the WebSocket handshake.
+        // See https://tools.ietf.org/html/rfc7230#section-5.4
+        host_ += ':' + std::to_string(ep.port());
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+        // Perform the SSL handshake
+        ws_.next_layer().async_handshake(
+            ssl::stream_base::client,
+            beast::bind_front_handler(
+                &session::on_ssl_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_ssl_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "ssl_handshake");
+
+        // Turn off the timeout on the tcp_stream, because
+        // the websocket stream has its own timeout system.
+        beast::get_lowest_layer(ws_).expires_never();
+
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::client));
+
+        // Set a decorator to change the User-Agent of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::request_type& req)
+            {
+                req.set(http::field::user_agent,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-client-async-ssl");
+            }));
+
+        // Perform the websocket handshake
+        ws_.async_handshake(host_, "/",
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Send the message
+        ws_.async_write(
+            net::buffer(text_),
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Close the WebSocket connection
+        ws_.async_close(websocket::close_code::normal,
+            beast::bind_front_handler(
+                &session::on_close,
+                shared_from_this()));
+    }
+
+    void
+    on_close(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "close");
+
+        // If we get here then the connection is closed gracefully
+
+        // The make_printable() function helps print a ConstBufferSequence
+        std::cout << beast::make_printable(buffer_.data()) << std::endl;
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-client-async-ssl <host> <port> <text>\n" <<
+            "Example:\n" <<
+            "    websocket-client-async-ssl echo.websocket.org 443 \"Hello, world!\"\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const text = argv[3];
+
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12_client};
+
+    // This holds the root certificate used for verification
+    load_root_certificates(ctx);
+
+    // Launch the asynchronous operation
+    std::make_shared<session>(ctx)->run(host, port, text);
+
+    // The async operations will run on the system_executor.
+    // Because the main thread has nothing to do in this example, we just wait
+    // for the system_executor to run out of work.
+    net::system_executor().context().join();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/client/async-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/async-ssl/CMakeLists.txt
new file mode 100644
index 000000000..a21982806
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/client/async-ssl "/")
+
+    add_executable (websocket-client-async-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        websocket_client_async_ssl.cpp
+    )
+
+    set_property(TARGET websocket-client-async-ssl PROPERTY FOLDER "example-websocket-client")
+
+    target_link_libraries (websocket-client-async-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/client/async-ssl/Jamfile b/src/boost/libs/beast/example/websocket/client/async-ssl/Jamfile
new file mode 100644
index 000000000..1f46a94d9
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-client-async-ssl :
+    websocket_client_async_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/async-ssl/websocket_client_async_ssl.cpp b/src/boost/libs/beast/example/websocket/client/async-ssl/websocket_client_async_ssl.cpp
new file mode 100644
index 000000000..4d413aa78
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async-ssl/websocket_client_async_ssl.cpp
@@ -0,0 +1,252 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL client, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/strand.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Sends a WebSocket message and prints the response
+class session : public std::enable_shared_from_this<session>
+{
+    tcp::resolver resolver_;
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>> ws_;
+    beast::flat_buffer buffer_;
+    std::string host_;
+    std::string text_;
+
+public:
+    // Resolver and socket require an io_context
+    explicit
+    session(net::io_context& ioc, ssl::context& ctx)
+        : resolver_(net::make_strand(ioc))
+        , ws_(net::make_strand(ioc), ctx)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run(
+        char const* host,
+        char const* port,
+        char const* text)
+    {
+        // Save these for later
+        host_ = host;
+        text_ = text;
+
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            port,
+            beast::bind_front_handler(
+                &session::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+            return fail(ec, "resolve");
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+        // Make the connection on the IP address we get from a lookup
+        beast::get_lowest_layer(ws_).async_connect(
+            results,
+            beast::bind_front_handler(
+                &session::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type ep)
+    {
+        if(ec)
+            return fail(ec, "connect");
+
+        // Update the host_ string. This will provide the value of the
+        // Host HTTP header during the WebSocket handshake.
+        // See https://tools.ietf.org/html/rfc7230#section-5.4
+        host_ += ':' + std::to_string(ep.port());
+
+        // Set a timeout on the operation
+        beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+        // Perform the SSL handshake
+        ws_.next_layer().async_handshake(
+            ssl::stream_base::client,
+            beast::bind_front_handler(
+                &session::on_ssl_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_ssl_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "ssl_handshake");
+
+        // Turn off the timeout on the tcp_stream, because
+        // the websocket stream has its own timeout system.
+        beast::get_lowest_layer(ws_).expires_never();
+
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::client));
+
+        // Set a decorator to change the User-Agent of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::request_type& req)
+            {
+                req.set(http::field::user_agent,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-client-async-ssl");
+            }));
+
+        // Perform the websocket handshake
+        ws_.async_handshake(host_, "/",
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Send the message
+        ws_.async_write(
+            net::buffer(text_),
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Close the WebSocket connection
+        ws_.async_close(websocket::close_code::normal,
+            beast::bind_front_handler(
+                &session::on_close,
+                shared_from_this()));
+    }
+
+    void
+    on_close(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "close");
+
+        // If we get here then the connection is closed gracefully
+
+        // The make_printable() function helps print a ConstBufferSequence
+        std::cout << beast::make_printable(buffer_.data()) << std::endl;
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-client-async-ssl <host> <port> <text>\n" <<
+            "Example:\n" <<
+            "    websocket-client-async-ssl echo.websocket.org 443 \"Hello, world!\"\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const text = argv[3];
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12_client};
+
+    // This holds the root certificate used for verification
+    load_root_certificates(ctx);
+
+    // Launch the asynchronous operation
+    std::make_shared<session>(ioc, ctx)->run(host, port, text);
+
+    // Run the I/O service. The call will return when
+    // the socket is closed.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/client/async/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/async/CMakeLists.txt
new file mode 100644
index 000000000..cc6434071
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/client/async "/")
+
+add_executable (websocket-client-async
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_client_async.cpp
+)
+
+target_link_libraries(websocket-client-async
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-client-async PROPERTY FOLDER "example-websocket-client")
diff --git a/src/boost/libs/beast/example/websocket/client/async/Jamfile b/src/boost/libs/beast/example/websocket/client/async/Jamfile
new file mode 100644
index 000000000..e5359db3b
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-client-async :
+    websocket_client_async.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/async/websocket_client_async.cpp b/src/boost/libs/beast/example/websocket/client/async/websocket_client_async.cpp
new file mode 100644
index 000000000..5fcf721b8
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/async/websocket_client_async.cpp
@@ -0,0 +1,223 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket client, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/strand.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Sends a WebSocket message and prints the response
+class session : public std::enable_shared_from_this<session>
+{
+    tcp::resolver resolver_;
+    websocket::stream<beast::tcp_stream> ws_;
+    beast::flat_buffer buffer_;
+    std::string host_;
+    std::string text_;
+
+public:
+    // Resolver and socket require an io_context
+    explicit
+    session(net::io_context& ioc)
+        : resolver_(net::make_strand(ioc))
+        , ws_(net::make_strand(ioc))
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run(
+        char const* host,
+        char const* port,
+        char const* text)
+    {
+        // Save these for later
+        host_ = host;
+        text_ = text;
+
+        // Look up the domain name
+        resolver_.async_resolve(
+            host,
+            port,
+            beast::bind_front_handler(
+                &session::on_resolve,
+                shared_from_this()));
+    }
+
+    void
+    on_resolve(
+        beast::error_code ec,
+        tcp::resolver::results_type results)
+    {
+        if(ec)
+            return fail(ec, "resolve");
+
+        // Set the timeout for the operation
+        beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+        // Make the connection on the IP address we get from a lookup
+        beast::get_lowest_layer(ws_).async_connect(
+            results,
+            beast::bind_front_handler(
+                &session::on_connect,
+                shared_from_this()));
+    }
+
+    void
+    on_connect(beast::error_code ec, tcp::resolver::results_type::endpoint_type ep)
+    {
+        if(ec)
+            return fail(ec, "connect");
+
+        // Turn off the timeout on the tcp_stream, because
+        // the websocket stream has its own timeout system.
+        beast::get_lowest_layer(ws_).expires_never();
+
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::client));
+
+        // Set a decorator to change the User-Agent of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::request_type& req)
+            {
+                req.set(http::field::user_agent,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-client-async");
+            }));
+
+        // Update the host_ string. This will provide the value of the
+        // Host HTTP header during the WebSocket handshake.
+        // See https://tools.ietf.org/html/rfc7230#section-5.4
+        host_ += ':' + std::to_string(ep.port());
+
+        // Perform the websocket handshake
+        ws_.async_handshake(host_, "/",
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+        
+        // Send the message
+        ws_.async_write(
+            net::buffer(text_),
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+        
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Close the WebSocket connection
+        ws_.async_close(websocket::close_code::normal,
+            beast::bind_front_handler(
+                &session::on_close,
+                shared_from_this()));
+    }
+
+    void
+    on_close(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "close");
+
+        // If we get here then the connection is closed gracefully
+
+        // The make_printable() function helps print a ConstBufferSequence
+        std::cout << beast::make_printable(buffer_.data()) << std::endl;
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-client-async <host> <port> <text>\n" <<
+            "Example:\n" <<
+            "    websocket-client-async echo.websocket.org 80 \"Hello, world!\"\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const text = argv[3];
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // Launch the asynchronous operation
+    std::make_shared<session>(ioc)->run(host, port, text);
+
+    // Run the I/O service. The call will return when
+    // the socket is closed.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/client/coro-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/coro-ssl/CMakeLists.txt
new file mode 100644
index 000000000..fe9db75c4
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/coro-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/client/coro-ssl "/")
+
+    add_executable (websocket-client-coro-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        websocket_client_coro_ssl.cpp
+    )
+
+    set_property(TARGET websocket-client-coro-ssl PROPERTY FOLDER "example-websocket-client")
+
+    target_link_libraries (websocket-client-coro-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/client/coro-ssl/Jamfile b/src/boost/libs/beast/example/websocket/client/coro-ssl/Jamfile
new file mode 100644
index 000000000..f6f1bb922
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/coro-ssl/Jamfile
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-client-coro-ssl :
+    websocket_client_coro_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/coro-ssl/websocket_client_coro_ssl.cpp b/src/boost/libs/beast/example/websocket/client/coro-ssl/websocket_client_coro_ssl.cpp
new file mode 100644
index 000000000..5b4d9e9b4
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/coro-ssl/websocket_client_coro_ssl.cpp
@@ -0,0 +1,175 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL client, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/spawn.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Sends a WebSocket message and prints the response
+void
+do_session(
+    std::string host,
+    std::string const& port,
+    std::string const& text,
+    net::io_context& ioc,
+    ssl::context& ctx,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // These objects perform our I/O
+    tcp::resolver resolver(ioc);
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>> ws(ioc, ctx);
+
+    // Look up the domain name
+    auto const results = resolver.async_resolve(host, port, yield[ec]);
+    if(ec)
+        return fail(ec, "resolve");
+
+    // Set a timeout on the operation
+    beast::get_lowest_layer(ws).expires_after(std::chrono::seconds(30));
+
+    // Make the connection on the IP address we get from a lookup
+    auto ep = beast::get_lowest_layer(ws).async_connect(results, yield[ec]);
+    if(ec)
+        return fail(ec, "connect");
+
+    // Update the host_ string. This will provide the value of the
+    // Host HTTP header during the WebSocket handshake.
+    // See https://tools.ietf.org/html/rfc7230#section-5.4
+    host += ':' + std::to_string(ep.port());
+
+    // Set a timeout on the operation
+    beast::get_lowest_layer(ws).expires_after(std::chrono::seconds(30));
+
+    // Set a decorator to change the User-Agent of the handshake
+    ws.set_option(websocket::stream_base::decorator(
+        [](websocket::request_type& req)
+        {
+            req.set(http::field::user_agent,
+                std::string(BOOST_BEAST_VERSION_STRING) +
+                    " websocket-client-coro");
+        }));
+
+    // Perform the SSL handshake
+    ws.next_layer().async_handshake(ssl::stream_base::client, yield[ec]);
+    if(ec)
+        return fail(ec, "ssl_handshake");
+
+    // Turn off the timeout on the tcp_stream, because
+    // the websocket stream has its own timeout system.
+    beast::get_lowest_layer(ws).expires_never();
+
+    // Set suggested timeout settings for the websocket
+    ws.set_option(
+        websocket::stream_base::timeout::suggested(
+            beast::role_type::client));
+
+    // Perform the websocket handshake
+    ws.async_handshake(host, "/", yield[ec]);
+    if(ec)
+        return fail(ec, "handshake");
+
+    // Send the message
+    ws.async_write(net::buffer(std::string(text)), yield[ec]);
+    if(ec)
+        return fail(ec, "write");
+
+    // This buffer will hold the incoming message
+    beast::flat_buffer buffer;
+
+    // Read a message into our buffer
+    ws.async_read(buffer, yield[ec]);
+    if(ec)
+        return fail(ec, "read");
+
+    // Close the WebSocket connection
+    ws.async_close(websocket::close_code::normal, yield[ec]);
+    if(ec)
+        return fail(ec, "close");
+
+    // If we get here then the connection is closed gracefully
+
+    // The make_printable() function helps print a ConstBufferSequence
+    std::cout << beast::make_printable(buffer.data()) << std::endl;
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-client-coro-ssl <host> <port> <text>\n" <<
+            "Example:\n" <<
+            "    websocket-client-coro-ssl echo.websocket.org 443 \"Hello, world!\"\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const text = argv[3];
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12_client};
+
+    // This holds the root certificate used for verification
+    load_root_certificates(ctx);
+
+    // Launch the asynchronous operation
+    boost::asio::spawn(ioc, std::bind(
+        &do_session,
+        std::string(host),
+        std::string(port),
+        std::string(text),
+        std::ref(ioc),
+        std::ref(ctx),
+        std::placeholders::_1));
+
+    // Run the I/O service. The call will return when
+    // the socket is closed.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/client/coro/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/coro/CMakeLists.txt
new file mode 100644
index 000000000..2bfeef282
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/coro/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/client/coro "/")
+
+add_executable (websocket-client-coro
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_client_coro.cpp
+)
+
+target_link_libraries(websocket-client-coro
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-client-coro PROPERTY FOLDER "example-websocket-client")
diff --git a/src/boost/libs/beast/example/websocket/client/coro/Jamfile b/src/boost/libs/beast/example/websocket/client/coro/Jamfile
new file mode 100644
index 000000000..761dfe8ff
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/coro/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-client-coro :
+    websocket_client_coro.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/coro/websocket_client_coro.cpp b/src/boost/libs/beast/example/websocket/client/coro/websocket_client_coro.cpp
new file mode 100644
index 000000000..7a4b0616d
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/coro/websocket_client_coro.cpp
@@ -0,0 +1,153 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket client, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/spawn.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Sends a WebSocket message and prints the response
+void
+do_session(
+    std::string host,
+    std::string const& port,
+    std::string const& text,
+    net::io_context& ioc,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // These objects perform our I/O
+    tcp::resolver resolver(ioc);
+    websocket::stream<beast::tcp_stream> ws(ioc);
+
+    // Look up the domain name
+    auto const results = resolver.async_resolve(host, port, yield[ec]);
+    if(ec)
+        return fail(ec, "resolve");
+
+    // Set a timeout on the operation
+    beast::get_lowest_layer(ws).expires_after(std::chrono::seconds(30));
+
+    // Make the connection on the IP address we get from a lookup
+    auto ep = beast::get_lowest_layer(ws).async_connect(results, yield[ec]);
+    if(ec)
+        return fail(ec, "connect");
+
+    // Update the host_ string. This will provide the value of the
+    // Host HTTP header during the WebSocket handshake.
+    // See https://tools.ietf.org/html/rfc7230#section-5.4
+    host += ':' + std::to_string(ep.port());
+
+    // Turn off the timeout on the tcp_stream, because
+    // the websocket stream has its own timeout system.
+    beast::get_lowest_layer(ws).expires_never();
+
+    // Set suggested timeout settings for the websocket
+    ws.set_option(
+        websocket::stream_base::timeout::suggested(
+            beast::role_type::client));
+
+    // Set a decorator to change the User-Agent of the handshake
+    ws.set_option(websocket::stream_base::decorator(
+        [](websocket::request_type& req)
+        {
+            req.set(http::field::user_agent,
+                std::string(BOOST_BEAST_VERSION_STRING) +
+                    " websocket-client-coro");
+        }));
+
+    // Perform the websocket handshake
+    ws.async_handshake(host, "/", yield[ec]);
+    if(ec)
+        return fail(ec, "handshake");
+
+    // Send the message
+    ws.async_write(net::buffer(std::string(text)), yield[ec]);
+    if(ec)
+        return fail(ec, "write");
+
+    // This buffer will hold the incoming message
+    beast::flat_buffer buffer;
+
+    // Read a message into our buffer
+    ws.async_read(buffer, yield[ec]);
+    if(ec)
+        return fail(ec, "read");
+
+    // Close the WebSocket connection
+    ws.async_close(websocket::close_code::normal, yield[ec]);
+    if(ec)
+        return fail(ec, "close");
+
+    // If we get here then the connection is closed gracefully
+
+    // The make_printable() function helps print a ConstBufferSequence
+    std::cout << beast::make_printable(buffer.data()) << std::endl;
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char** argv)
+{
+    // Check command line arguments.
+    if(argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-client-coro <host> <port> <text>\n" <<
+            "Example:\n" <<
+            "    websocket-client-coro echo.websocket.org 80 \"Hello, world!\"\n";
+        return EXIT_FAILURE;
+    }
+    auto const host = argv[1];
+    auto const port = argv[2];
+    auto const text = argv[3];
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // Launch the asynchronous operation
+    boost::asio::spawn(ioc, std::bind(
+        &do_session,
+        std::string(host),
+        std::string(port),
+        std::string(text),
+        std::ref(ioc),
+        std::placeholders::_1));
+
+    // Run the I/O service. The call will return when
+    // the socket is closed.
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/client/sync-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/sync-ssl/CMakeLists.txt
new file mode 100644
index 000000000..b84495702
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/sync-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/client/sync-ssl "/")
+
+    add_executable (websocket-client-sync-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/root_certificates.hpp
+        Jamfile
+        websocket_client_sync_ssl.cpp
+    )
+
+    set_property(TARGET websocket-client-sync-ssl PROPERTY FOLDER "example-websocket-client")
+
+    target_link_libraries (websocket-client-sync-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/client/sync-ssl/Jamfile b/src/boost/libs/beast/example/websocket/client/sync-ssl/Jamfile
new file mode 100644
index 000000000..0cfec0f68
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/sync-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-client-sync-ssl :
+    websocket_client_sync_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/sync-ssl/websocket_client_sync_ssl.cpp b/src/boost/libs/beast/example/websocket/client/sync-ssl/websocket_client_sync_ssl.cpp
new file mode 100644
index 000000000..1a51f6b6b
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/sync-ssl/websocket_client_sync_ssl.cpp
@@ -0,0 +1,116 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL client, synchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/root_certificates.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/connect.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/ssl/stream.hpp>
+#include <cstdlib>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Sends a WebSocket message and prints the response
+int main(int argc, char** argv)
+{
+    try
+    {
+        // Check command line arguments.
+        if(argc != 4)
+        {
+            std::cerr <<
+                "Usage: websocket-client-sync-ssl <host> <port> <text>\n" <<
+                "Example:\n" <<
+                "    websocket-client-sync-ssl echo.websocket.org 443 \"Hello, world!\"\n";
+            return EXIT_FAILURE;
+        }
+        std::string host = argv[1];
+        auto const  port = argv[2];
+        auto const  text = argv[3];
+
+        // The io_context is required for all I/O
+        net::io_context ioc;
+
+        // The SSL context is required, and holds certificates
+        ssl::context ctx{ssl::context::tlsv12_client};
+
+        // This holds the root certificate used for verification
+        load_root_certificates(ctx);
+
+        // These objects perform our I/O
+        tcp::resolver resolver{ioc};
+        websocket::stream<beast::ssl_stream<tcp::socket>> ws{ioc, ctx};
+
+        // Look up the domain name
+        auto const results = resolver.resolve(host, port);
+
+        // Make the connection on the IP address we get from a lookup
+        auto ep = net::connect(get_lowest_layer(ws), results);
+
+        // Update the host_ string. This will provide the value of the
+        // Host HTTP header during the WebSocket handshake.
+        // See https://tools.ietf.org/html/rfc7230#section-5.4
+        host += ':' + std::to_string(ep.port());
+
+        // Perform the SSL handshake
+        ws.next_layer().handshake(ssl::stream_base::client);
+
+        // Set a decorator to change the User-Agent of the handshake
+        ws.set_option(websocket::stream_base::decorator(
+            [](websocket::request_type& req)
+            {
+                req.set(http::field::user_agent,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-client-coro");
+            }));
+
+        // Perform the websocket handshake
+        ws.handshake(host, "/");
+
+        // Send the message
+        ws.write(net::buffer(std::string(text)));
+
+        // This buffer will hold the incoming message
+        beast::flat_buffer buffer;
+
+        // Read a message into our buffer
+        ws.read(buffer);
+
+        // Close the WebSocket connection
+        ws.close(websocket::close_code::normal);
+
+        // If we get here then the connection is closed gracefully
+
+        // The make_printable() function helps print a ConstBufferSequence
+        std::cout << beast::make_printable(buffer.data()) << std::endl;
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/client/sync/CMakeLists.txt b/src/boost/libs/beast/example/websocket/client/sync/CMakeLists.txt
new file mode 100644
index 000000000..d8606ab55
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/sync/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/client/sync "/")
+
+add_executable (websocket-client-sync
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_client_sync.cpp
+)
+
+target_link_libraries(websocket-client-sync
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-client-sync PROPERTY FOLDER "example-websocket-client")
diff --git a/src/boost/libs/beast/example/websocket/client/sync/Jamfile b/src/boost/libs/beast/example/websocket/client/sync/Jamfile
new file mode 100644
index 000000000..ea71a0ce6
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/sync/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-client-sync :
+    websocket_client_sync.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/client/sync/websocket_client_sync.cpp b/src/boost/libs/beast/example/websocket/client/sync/websocket_client_sync.cpp
new file mode 100644
index 000000000..07409b70e
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/client/sync/websocket_client_sync.cpp
@@ -0,0 +1,105 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket client, synchronous
+//
+//------------------------------------------------------------------------------
+
+//[example_websocket_client
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/connect.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <cstdlib>
+#include <iostream>
+#include <string>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+// Sends a WebSocket message and prints the response
+int main(int argc, char** argv)
+{
+    try
+    {
+        // Check command line arguments.
+        if(argc != 4)
+        {
+            std::cerr <<
+                "Usage: websocket-client-sync <host> <port> <text>\n" <<
+                "Example:\n" <<
+                "    websocket-client-sync echo.websocket.org 80 \"Hello, world!\"\n";
+            return EXIT_FAILURE;
+        }
+        std::string host = argv[1];
+        auto const  port = argv[2];
+        auto const  text = argv[3];
+
+        // The io_context is required for all I/O
+        net::io_context ioc;
+
+        // These objects perform our I/O
+        tcp::resolver resolver{ioc};
+        websocket::stream<tcp::socket> ws{ioc};
+
+        // Look up the domain name
+        auto const results = resolver.resolve(host, port);
+
+        // Make the connection on the IP address we get from a lookup
+        auto ep = net::connect(ws.next_layer(), results);
+
+        // Update the host_ string. This will provide the value of the
+        // Host HTTP header during the WebSocket handshake.
+        // See https://tools.ietf.org/html/rfc7230#section-5.4
+        host += ':' + std::to_string(ep.port());
+
+        // Set a decorator to change the User-Agent of the handshake
+        ws.set_option(websocket::stream_base::decorator(
+            [](websocket::request_type& req)
+            {
+                req.set(http::field::user_agent,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-client-coro");
+            }));
+
+        // Perform the websocket handshake
+        ws.handshake(host, "/");
+
+        // Send the message
+        ws.write(net::buffer(std::string(text)));
+
+        // This buffer will hold the incoming message
+        beast::flat_buffer buffer;
+
+        // Read a message into our buffer
+        ws.read(buffer);
+
+        // Close the WebSocket connection
+        ws.close(websocket::close_code::normal);
+
+        // If we get here then the connection is closed gracefully
+
+        // The make_printable() function helps print a ConstBufferSequence
+        std::cout << beast::make_printable(buffer.data()) << std::endl;
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}
+
+//]
diff --git a/src/boost/libs/beast/example/websocket/server/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/CMakeLists.txt
new file mode 100644
index 000000000..c5b8da5d6
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/CMakeLists.txt
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (async)
+add_subdirectory (chat-multi)
+add_subdirectory (coro)
+add_subdirectory (fast)
+add_subdirectory (stackless)
+add_subdirectory (sync)
+
+if (OPENSSL_FOUND)
+    add_subdirectory (async-ssl)
+    add_subdirectory (coro-ssl)
+    add_subdirectory (stackless-ssl)
+    add_subdirectory (sync-ssl)
+endif()
diff --git a/src/boost/libs/beast/example/websocket/server/Jamfile b/src/boost/libs/beast/example/websocket/server/Jamfile
new file mode 100644
index 000000000..ccfd63fa4
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/Jamfile
@@ -0,0 +1,21 @@
+#
+# Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+build-project async ;
+build-project chat-multi ;
+build-project coro ;
+build-project fast ;
+build-project stackless ;
+build-project sync ;
+
+# SSL
+build-project async-ssl ;
+build-project coro-ssl ;
+build-project stackless-ssl ;
+build-project sync-ssl ;
diff --git a/src/boost/libs/beast/example/websocket/server/async-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/async-ssl/CMakeLists.txt
new file mode 100644
index 000000000..8f1055d2f
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/async-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/server/async-ssl "/")
+
+    add_executable (websocket-server-async-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        websocket_server_async_ssl.cpp
+    )
+
+    set_property(TARGET websocket-server-async-ssl PROPERTY FOLDER "example-websocket-server")
+
+    target_link_libraries (websocket-server-async-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/server/async-ssl/Jamfile b/src/boost/libs/beast/example/websocket/server/async-ssl/Jamfile
new file mode 100644
index 000000000..f9b253a0c
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/async-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-server-async-ssl :
+    websocket_server_async_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/async-ssl/websocket_server_async_ssl.cpp b/src/boost/libs/beast/example/websocket/server/async-ssl/websocket_server_async_ssl.cpp
new file mode 100644
index 000000000..b79abbbfb
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/async-ssl/websocket_server_async_ssl.cpp
@@ -0,0 +1,317 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL server, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+class session : public std::enable_shared_from_this<session>
+{
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>> ws_;
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the socket
+    session(tcp::socket&& socket, ssl::context& ctx)
+        : ws_(std::move(socket), ctx)
+    {
+    }
+
+    // Get on the correct executor
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(ws_.get_executor(),
+            beast::bind_front_handler(
+                &session::on_run,
+                shared_from_this()));
+    }
+
+    // Start the asynchronous operation
+    void
+    on_run()
+    {
+        // Set the timeout.
+        beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+         // Perform the SSL handshake
+        ws_.next_layer().async_handshake(
+            ssl::stream_base::server,
+            beast::bind_front_handler(
+                &session::on_handshake,
+                shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        // Turn off the timeout on the tcp_stream, because
+        // the websocket stream has its own timeout system.
+        beast::get_lowest_layer(ws_).expires_never();
+
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::server));
+
+        // Set a decorator to change the Server of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-server-async-ssl");
+            }));
+
+        // Accept the websocket handshake
+        ws_.async_accept(
+            beast::bind_front_handler(
+                &session::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "accept");
+
+        // Read a message
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This indicates that the session was closed
+        if(ec == websocket::error::closed)
+            return;
+
+        if(ec)
+            fail(ec, "read");
+
+        // Echo the message
+        ws_.text(ws_.got_text());
+        ws_.async_write(
+            buffer_.data(),
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Clear the buffer
+        buffer_.consume(buffer_.size());
+
+        // Do another read
+        do_read();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    ssl::context& ctx_;
+    tcp::acceptor acceptor_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        ssl::context& ctx,
+        tcp::endpoint endpoint)
+        : ioc_(ioc)
+        , ctx_(ctx)
+        , acceptor_(net::make_strand(ioc))
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the session and run it
+            std::make_shared<session>(std::move(socket), ctx_)->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-async-ssl <address> <port> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-server-async-ssl 0.0.0.0 8080 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Create and launch a listening port
+    std::make_shared<listener>(ioc, ctx, tcp::endpoint{address, port})->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/async/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/async/CMakeLists.txt
new file mode 100644
index 000000000..0e1ceb8b6
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/async/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/server/async "/")
+
+add_executable (websocket-server-async
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_server_async.cpp
+)
+
+target_link_libraries(websocket-server-async
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-server-async PROPERTY FOLDER "example-websocket-server")
diff --git a/src/boost/libs/beast/example/websocket/server/async/Jamfile b/src/boost/libs/beast/example/websocket/server/async/Jamfile
new file mode 100644
index 000000000..e1e63e14d
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/async/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-server-async :
+    websocket_server_async.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/async/websocket_server_async.cpp b/src/boost/libs/beast/example/websocket/server/async/websocket_server_async.cpp
new file mode 100644
index 000000000..4b9570868
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/async/websocket_server_async.cpp
@@ -0,0 +1,281 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket server, asynchronous
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/strand.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+class session : public std::enable_shared_from_this<session>
+{
+    websocket::stream<beast::tcp_stream> ws_;
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    session(tcp::socket&& socket)
+        : ws_(std::move(socket))
+    {
+    }
+
+    // Get on the correct executor
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(ws_.get_executor(),
+            beast::bind_front_handler(
+                &session::on_run,
+                shared_from_this()));
+    }
+
+    // Start the asynchronous operation
+    void
+    on_run()
+    {
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::server));
+
+        // Set a decorator to change the Server of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-server-async");
+            }));
+        // Accept the websocket handshake
+        ws_.async_accept(
+            beast::bind_front_handler(
+                &session::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "accept");
+
+        // Read a message
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This indicates that the session was closed
+        if(ec == websocket::error::closed)
+            return;
+
+        if(ec)
+            fail(ec, "read");
+
+        // Echo the message
+        ws_.text(ws_.got_text());
+        ws_.async_write(
+            buffer_.data(),
+            beast::bind_front_handler(
+                &session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Clear the buffer
+        buffer_.consume(buffer_.size());
+
+        // Do another read
+        do_read();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener : public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint)
+        : ioc_(ioc)
+        , acceptor_(ioc)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the session and run it
+            std::make_shared<session>(std::move(socket))->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-async <address> <port> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-server-async 0.0.0.0 8080 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Create and launch a listening port
+    std::make_shared<listener>(ioc, tcp::endpoint{address, port})->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/chat-multi/CMakeLists.txt
new file mode 100644
index 000000000..a256b000f
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/CMakeLists.txt
@@ -0,0 +1,41 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/server/chat-multi "/")
+
+file (GLOB APP_FILES
+  beast.hpp
+  http_session.cpp
+  http_session.hpp
+  Jamfile
+  listener.cpp
+  listener.hpp
+  main.cpp
+  net.hpp
+  shared_state.cpp
+  shared_state.hpp
+  websocket_session.cpp
+  websocket_session.hpp
+  chat_client.html
+  README.md
+)
+
+source_group ("" FILES ${APP_FILES})
+
+add_executable (websocket-chat-multi
+    ${APP_FILES}
+    ${BOOST_BEAST_FILES}
+)
+
+target_link_libraries(websocket-chat-multi
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-chat-multi PROPERTY FOLDER "example-websocket-server")
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/Jamfile b/src/boost/libs/beast/example/websocket/server/chat-multi/Jamfile
new file mode 100644
index 000000000..a8d49bfdd
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/Jamfile
@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-chat-multi :
+    http_session.cpp
+    listener.cpp
+    main.cpp
+    shared_state.cpp
+    websocket_session.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/beast.hpp b/src/boost/libs/beast/example/websocket/server/chat-multi/beast.hpp
new file mode 100644
index 000000000..0b7a9c61a
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/beast.hpp
@@ -0,0 +1,19 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_BEAST_HPP
+#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_BEAST_HPP
+
+#include <boost/beast.hpp>
+
+namespace beast = boost::beast;                 // from <boost/beast.hpp>
+namespace http = beast::http;                   // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket;         // from <boost/beast/websocket.hpp>
+
+#endif
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/chat_client.html b/src/boost/libs/beast/example/websocket/server/chat-multi/chat_client.html
new file mode 100644
index 000000000..2be69cdf0
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/chat_client.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8" />
+  <title>Boost.Beast WebSocket Chat Client</title>
+</head>
+<body>
+  <h1>Boost.Beast WebSocket Chat Client</h1>
+  <p>
+    <a href="http://www.boost.org/libs/beast">Boost.Beast</a>
+    <a href="http://www.boost.org/libs/beast/example/websocket/server/chat-multi">Source Code</a>
+  </p>
+  Server URI: <input class="draw-border" id="uri" size="47" value="ws://localhost:8080" style="margin-bottom: 5px;">
+  <button class="echo-button" id="connect">Connect</button>
+  <button class="echo-button" id="disconnect">Disconnect</button><br>
+  Your Name: <input class="draw-border" id="userName" size=47 style="margin-bottom: 5px;"><br>
+  <pre id="messages" style="width: 600px; height: 400px; white-space: normal; overflow: auto; border: solid 1px #cccccc; margin-bottom: 5px;"></pre>
+  <div style="margin-bottom: 5px;">
+    Message<br>
+    <input class="draw-border" id="sendMessage" size="74" value="">
+    <button class="echo-button" id="send">Send</button>
+  </div>
+  <script>
+    var ws = null;
+    function showMessage(msg) {
+      messages.innerText += msg + "\n";
+      messages.scrollTop = messages.scrollHeight - messages.clientHeight;
+    };
+    connect.onclick = function() {
+      ws = new WebSocket(uri.value);
+      ws.onopen = function(ev) {
+        showMessage("[connection opened]");
+      };
+      ws.onclose = function(ev) {
+        showMessage("[connection closed]");
+      };
+      ws.onmessage = function(ev) {
+        showMessage(ev.data);
+      };
+      ws.onerror = function(ev) {
+        showMessage("[error]");
+        console.log(ev);
+      };
+    };
+    disconnect.onclick = function() {
+      ws.close();
+    };
+    send.onclick = function() {
+      ws.send(userName.value + ": " + sendMessage.value);
+      sendMessage.value = "";
+    };
+    sendMessage.onkeyup = function(ev) {
+      ev.preventDefault();
+      if (ev.keyCode === 13) {
+        send.click();
+      }
+    }
+  </script>
+</body>
+</html>
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/http_session.cpp b/src/boost/libs/beast/example/websocket/server/chat-multi/http_session.cpp
new file mode 100644
index 000000000..9d4dee871
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/http_session.cpp
@@ -0,0 +1,371 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#include "http_session.hpp"
+#include "websocket_session.hpp"
+#include <boost/config.hpp>
+#include <iostream>
+
+#define BOOST_NO_CXX14_GENERIC_LAMBDAS
+
+//------------------------------------------------------------------------------
+
+// Return a reasonable mime type based on the extension of a file.
+beast::string_view
+mime_type(beast::string_view path)
+{
+    using beast::iequals;
+    auto const ext = [&path]
+    {
+        auto const pos = path.rfind(".");
+        if(pos == beast::string_view::npos)
+            return beast::string_view{};
+        return path.substr(pos);
+    }();
+    if(iequals(ext, ".htm"))  return "text/html";
+    if(iequals(ext, ".html")) return "text/html";
+    if(iequals(ext, ".php"))  return "text/html";
+    if(iequals(ext, ".css"))  return "text/css";
+    if(iequals(ext, ".txt"))  return "text/plain";
+    if(iequals(ext, ".js"))   return "application/javascript";
+    if(iequals(ext, ".json")) return "application/json";
+    if(iequals(ext, ".xml"))  return "application/xml";
+    if(iequals(ext, ".swf"))  return "application/x-shockwave-flash";
+    if(iequals(ext, ".flv"))  return "video/x-flv";
+    if(iequals(ext, ".png"))  return "image/png";
+    if(iequals(ext, ".jpe"))  return "image/jpeg";
+    if(iequals(ext, ".jpeg")) return "image/jpeg";
+    if(iequals(ext, ".jpg"))  return "image/jpeg";
+    if(iequals(ext, ".gif"))  return "image/gif";
+    if(iequals(ext, ".bmp"))  return "image/bmp";
+    if(iequals(ext, ".ico"))  return "image/vnd.microsoft.icon";
+    if(iequals(ext, ".tiff")) return "image/tiff";
+    if(iequals(ext, ".tif"))  return "image/tiff";
+    if(iequals(ext, ".svg"))  return "image/svg+xml";
+    if(iequals(ext, ".svgz")) return "image/svg+xml";
+    return "application/text";
+}
+
+// Append an HTTP rel-path to a local filesystem path.
+// The returned path is normalized for the platform.
+std::string
+path_cat(
+    beast::string_view base,
+    beast::string_view path)
+{
+    if(base.empty())
+        return std::string(path);
+    std::string result(base);
+#ifdef BOOST_MSVC
+    char constexpr path_separator = '\\';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+    for(auto& c : result)
+        if(c == '/')
+            c = path_separator;
+#else
+    char constexpr path_separator = '/';
+    if(result.back() == path_separator)
+        result.resize(result.size() - 1);
+    result.append(path.data(), path.size());
+#endif
+    return result;
+}
+
+// This function produces an HTTP response for the given
+// request. The type of the response object depends on the
+// contents of the request, so the interface requires the
+// caller to pass a generic lambda for receiving the response.
+template<
+    class Body, class Allocator,
+    class Send>
+void
+handle_request(
+    beast::string_view doc_root,
+    http::request<Body, http::basic_fields<Allocator>>&& req,
+    Send&& send)
+{
+    // Returns a bad request response
+    auto const bad_request =
+    [&req](beast::string_view why)
+    {
+        http::response<http::string_body> res{http::status::bad_request, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = std::string(why);
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a not found response
+    auto const not_found =
+    [&req](beast::string_view target)
+    {
+        http::response<http::string_body> res{http::status::not_found, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "The resource '" + std::string(target) + "' was not found.";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Returns a server error response
+    auto const server_error =
+    [&req](beast::string_view what)
+    {
+        http::response<http::string_body> res{http::status::internal_server_error, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, "text/html");
+        res.keep_alive(req.keep_alive());
+        res.body() = "An error occurred: '" + std::string(what) + "'";
+        res.prepare_payload();
+        return res;
+    };
+
+    // Make sure we can handle the method
+    if( req.method() != http::verb::get &&
+        req.method() != http::verb::head)
+        return send(bad_request("Unknown HTTP-method"));
+
+    // Request path must be absolute and not contain "..".
+    if( req.target().empty() ||
+        req.target()[0] != '/' ||
+        req.target().find("..") != beast::string_view::npos)
+        return send(bad_request("Illegal request-target"));
+
+    // Build the path to the requested file
+    std::string path = path_cat(doc_root, req.target());
+    if(req.target().back() == '/')
+        path.append("index.html");
+
+    // Attempt to open the file
+    beast::error_code ec;
+    http::file_body::value_type body;
+    body.open(path.c_str(), beast::file_mode::scan, ec);
+
+    // Handle the case where the file doesn't exist
+    if(ec == boost::system::errc::no_such_file_or_directory)
+        return send(not_found(req.target()));
+
+    // Handle an unknown error
+    if(ec)
+        return send(server_error(ec.message()));
+
+    // Cache the size since we need it after the move
+    auto const size = body.size();
+
+    // Respond to HEAD request
+    if(req.method() == http::verb::head)
+    {
+        http::response<http::empty_body> res{http::status::ok, req.version()};
+        res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+        res.set(http::field::content_type, mime_type(path));
+        res.content_length(size);
+        res.keep_alive(req.keep_alive());
+        return send(std::move(res));
+    }
+
+    // Respond to GET request
+    http::response<http::file_body> res{
+        std::piecewise_construct,
+        std::make_tuple(std::move(body)),
+        std::make_tuple(http::status::ok, req.version())};
+    res.set(http::field::server, BOOST_BEAST_VERSION_STRING);
+    res.set(http::field::content_type, mime_type(path));
+    res.content_length(size);
+    res.keep_alive(req.keep_alive());
+    return send(std::move(res));
+}
+
+//------------------------------------------------------------------------------
+
+struct http_session::send_lambda
+{
+    http_session& self_;
+
+    explicit
+    send_lambda(http_session& self)
+        : self_(self)
+    {
+    }
+
+    template<bool isRequest, class Body, class Fields>
+    void
+    operator()(http::message<isRequest, Body, Fields>&& msg) const
+    {
+        // The lifetime of the message has to extend
+        // for the duration of the async operation so
+        // we use a shared_ptr to manage it.
+        auto sp = boost::make_shared<
+            http::message<isRequest, Body, Fields>>(std::move(msg));
+
+        // Write the response
+        auto self = self_.shared_from_this();
+        http::async_write(
+            self_.stream_,
+            *sp,
+            [self, sp](beast::error_code ec, std::size_t bytes)
+            {
+                self->on_write(ec, bytes, sp->need_eof());
+            });
+    }
+};
+
+//------------------------------------------------------------------------------
+
+http_session::
+http_session(
+    tcp::socket&& socket,
+    boost::shared_ptr<shared_state> const& state)
+    : stream_(std::move(socket))
+    , state_(state)
+{
+}
+
+void
+http_session::
+run()
+{
+    do_read();
+}
+
+// Report a failure
+void
+http_session::
+fail(beast::error_code ec, char const* what)
+{
+    // Don't report on canceled operations
+    if(ec == net::error::operation_aborted)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+void
+http_session::
+do_read()
+{
+    // Construct a new parser for each message
+    parser_.emplace();
+
+    // Apply a reasonable limit to the allowed size
+    // of the body in bytes to prevent abuse.
+    parser_->body_limit(10000);
+
+    // Set the timeout.
+    stream_.expires_after(std::chrono::seconds(30));
+
+    // Read a request
+    http::async_read(
+        stream_,
+        buffer_,
+        parser_->get(),
+        beast::bind_front_handler(
+            &http_session::on_read,
+            shared_from_this()));
+}
+
+void
+http_session::
+on_read(beast::error_code ec, std::size_t)
+{
+    // This means they closed the connection
+    if(ec == http::error::end_of_stream)
+    {
+        stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+        return;
+    }
+
+    // Handle the error, if any
+    if(ec)
+        return fail(ec, "read");
+
+    // See if it is a WebSocket Upgrade
+    if(websocket::is_upgrade(parser_->get()))
+    {
+        // Create a websocket session, transferring ownership
+        // of both the socket and the HTTP request.
+        boost::make_shared<websocket_session>(
+            stream_.release_socket(),
+                state_)->run(parser_->release());
+        return;
+    }
+
+    // Send the response
+#ifndef BOOST_NO_CXX14_GENERIC_LAMBDAS
+    //
+    // The following code requires generic
+    // lambdas, available in C++14 and later.
+    //
+    handle_request(
+        state_->doc_root(),
+        std::move(req_),
+        [this](auto&& response)
+        {
+            // The lifetime of the message has to extend
+            // for the duration of the async operation so
+            // we use a shared_ptr to manage it.
+            using response_type = typename std::decay<decltype(response)>::type;
+            auto sp = boost::make_shared<response_type>(std::forward<decltype(response)>(response));
+
+        #if 0
+            // NOTE This causes an ICE in gcc 7.3
+            // Write the response
+            http::async_write(this->stream_, *sp,
+                [self = shared_from_this(), sp](
+                    beast::error_code ec, std::size_t bytes)
+                {
+                    self->on_write(ec, bytes, sp->need_eof()); 
+                });
+        #else
+            // Write the response
+            auto self = shared_from_this();
+            http::async_write(stream_, *sp,
+                [self, sp](
+                    beast::error_code ec, std::size_t bytes)
+                {
+                    self->on_write(ec, bytes, sp->need_eof()); 
+                });
+        #endif
+        });
+#else
+    //
+    // This code uses the function object type send_lambda in
+    // place of a generic lambda which is not available in C++11
+    //
+    handle_request(
+        state_->doc_root(),
+        parser_->release(),
+        send_lambda(*this));
+
+#endif
+}
+
+void
+http_session::
+on_write(beast::error_code ec, std::size_t, bool close)
+{
+    // Handle the error, if any
+    if(ec)
+        return fail(ec, "write");
+
+    if(close)
+    {
+        // This means we should close the connection, usually because
+        // the response indicated the "Connection: close" semantic.
+        stream_.socket().shutdown(tcp::socket::shutdown_send, ec);
+        return;
+    }
+
+    // Read another request
+    do_read();
+}
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/http_session.hpp b/src/boost/libs/beast/example/websocket/server/chat-multi/http_session.hpp
new file mode 100644
index 000000000..637a5d898
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/http_session.hpp
@@ -0,0 +1,48 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_HTTP_SESSION_HPP
+#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_HTTP_SESSION_HPP
+
+#include "net.hpp"
+#include "beast.hpp"
+#include "shared_state.hpp"
+#include <boost/optional.hpp>
+#include <boost/smart_ptr.hpp>
+#include <cstdlib>
+#include <memory>
+
+/** Represents an established HTTP connection
+*/
+class http_session : public boost::enable_shared_from_this<http_session>
+{
+    beast::tcp_stream stream_;
+    beast::flat_buffer buffer_;
+    boost::shared_ptr<shared_state> state_;
+
+    // The parser is stored in an optional container so we can
+    // construct it from scratch it at the beginning of each new message.
+    boost::optional<http::request_parser<http::string_body>> parser_;
+
+    struct send_lambda;
+
+    void fail(beast::error_code ec, char const* what);
+    void do_read();
+    void on_read(beast::error_code ec, std::size_t);
+    void on_write(beast::error_code ec, std::size_t, bool close);
+
+public:
+    http_session(
+        tcp::socket&& socket,
+        boost::shared_ptr<shared_state> const& state);
+
+    void run();
+};
+
+#endif
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/listener.cpp b/src/boost/libs/beast/example/websocket/server/chat-multi/listener.cpp
new file mode 100644
index 000000000..8bbecb49b
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/listener.cpp
@@ -0,0 +1,101 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#include "listener.hpp"
+#include "http_session.hpp"
+#include <iostream>
+
+listener::
+listener(
+    net::io_context& ioc,
+    tcp::endpoint endpoint,
+    boost::shared_ptr<shared_state> const& state)
+    : ioc_(ioc)
+    , acceptor_(ioc)
+    , state_(state)
+{
+    beast::error_code ec;
+
+    // Open the acceptor
+    acceptor_.open(endpoint.protocol(), ec);
+    if(ec)
+    {
+        fail(ec, "open");
+        return;
+    }
+
+    // Allow address reuse
+    acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+    if(ec)
+    {
+        fail(ec, "set_option");
+        return;
+    }
+
+    // Bind to the server address
+    acceptor_.bind(endpoint, ec);
+    if(ec)
+    {
+        fail(ec, "bind");
+        return;
+    }
+
+    // Start listening for connections
+    acceptor_.listen(
+        net::socket_base::max_listen_connections, ec);
+    if(ec)
+    {
+        fail(ec, "listen");
+        return;
+    }
+}
+
+void
+listener::
+run()
+{
+    // The new connection gets its own strand
+    acceptor_.async_accept(
+        net::make_strand(ioc_),
+        beast::bind_front_handler(
+            &listener::on_accept,
+            shared_from_this()));
+}
+
+// Report a failure
+void
+listener::
+fail(beast::error_code ec, char const* what)
+{
+    // Don't report on canceled operations
+    if(ec == net::error::operation_aborted)
+        return;
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Handle a connection
+void
+listener::
+on_accept(beast::error_code ec, tcp::socket socket)
+{
+    if(ec)
+        return fail(ec, "accept");
+    else
+        // Launch a new session for this connection
+        boost::make_shared<http_session>(
+            std::move(socket),
+            state_)->run();
+
+    // The new connection gets its own strand
+    acceptor_.async_accept(
+        net::make_strand(ioc_),
+        beast::bind_front_handler(
+            &listener::on_accept,
+            shared_from_this()));
+}
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/listener.hpp b/src/boost/libs/beast/example/websocket/server/chat-multi/listener.hpp
new file mode 100644
index 000000000..a0c536e2e
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/listener.hpp
@@ -0,0 +1,42 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_LISTENER_HPP
+#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_LISTENER_HPP
+
+#include "beast.hpp"
+#include "net.hpp"
+#include <boost/smart_ptr.hpp>
+#include <memory>
+#include <string>
+
+// Forward declaration
+class shared_state;
+
+// Accepts incoming connections and launches the sessions
+class listener : public boost::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+    boost::shared_ptr<shared_state> state_;
+
+    void fail(beast::error_code ec, char const* what);
+    void on_accept(beast::error_code ec, tcp::socket socket);
+
+public:
+    listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint,
+        boost::shared_ptr<shared_state> const& state);
+
+    // Start accepting incoming connections
+    void run();
+};
+
+#endif
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/main.cpp b/src/boost/libs/beast/example/websocket/server/chat-multi/main.cpp
new file mode 100644
index 000000000..8645f1ded
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/main.cpp
@@ -0,0 +1,84 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+//------------------------------------------------------------------------------
+/*
+    WebSocket chat server, multi-threaded
+
+    This implements a multi-user chat room using WebSocket. The
+    `io_context` runs on any number of threads, specified at
+    the command line.
+
+*/
+//------------------------------------------------------------------------------
+
+#include "listener.hpp"
+#include "shared_state.hpp"
+
+#include <boost/asio/signal_set.hpp>
+#include <boost/smart_ptr.hpp>
+#include <iostream>
+#include <vector>
+
+int
+main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 5)
+    {
+        std::cerr <<
+            "Usage: websocket-chat-multi <address> <port> <doc_root> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-chat-server 0.0.0.0 8080 . 5\n";
+        return EXIT_FAILURE;
+    }
+    auto address = net::ip::make_address(argv[1]);
+    auto port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto doc_root = argv[3];
+    auto const threads = std::max<int>(1, std::atoi(argv[4]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc;
+
+    // Create and launch a listening port
+    boost::make_shared<listener>(
+        ioc,
+        tcp::endpoint{address, port},
+        boost::make_shared<shared_state>(doc_root))->run();
+
+    // Capture SIGINT and SIGTERM to perform a clean shutdown
+    net::signal_set signals(ioc, SIGINT, SIGTERM);
+    signals.async_wait(
+        [&ioc](boost::system::error_code const&, int)
+        {
+            // Stop the io_context. This will cause run()
+            // to return immediately, eventually destroying the
+            // io_context and any remaining handlers in it.
+            ioc.stop();
+        });
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    // (If we get here, it means we got a SIGINT or SIGTERM)
+
+    // Block until all the threads exit
+    for(auto& t : v)
+        t.join();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/net.hpp b/src/boost/libs/beast/example/websocket/server/chat-multi/net.hpp
new file mode 100644
index 000000000..48a215355
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/net.hpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_NET_HPP
+#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_NET_HPP
+
+#include <boost/asio.hpp>
+
+namespace net = boost::asio;                    // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;               // from <boost/asio/ip/tcp.hpp>
+
+#endif
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/shared_state.cpp b/src/boost/libs/beast/example/websocket/server/chat-multi/shared_state.cpp
new file mode 100644
index 000000000..9fceecc5d
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/shared_state.cpp
@@ -0,0 +1,59 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#include "shared_state.hpp"
+#include "websocket_session.hpp"
+
+shared_state::
+shared_state(std::string doc_root)
+    : doc_root_(std::move(doc_root))
+{
+}
+
+void
+shared_state::
+join(websocket_session* session)
+{
+    std::lock_guard<std::mutex> lock(mutex_);
+    sessions_.insert(session);
+}
+
+void
+shared_state::
+leave(websocket_session* session)
+{
+    std::lock_guard<std::mutex> lock(mutex_);
+    sessions_.erase(session);
+}
+
+// Broadcast a message to all websocket client sessions
+void
+shared_state::
+send(std::string message)
+{
+    // Put the message in a shared pointer so we can re-use it for each client
+    auto const ss = boost::make_shared<std::string const>(std::move(message));
+
+    // Make a local list of all the weak pointers representing
+    // the sessions, so we can do the actual sending without
+    // holding the mutex:
+    std::vector<boost::weak_ptr<websocket_session>> v;
+    {
+        std::lock_guard<std::mutex> lock(mutex_);
+        v.reserve(sessions_.size());
+        for(auto p : sessions_)
+            v.emplace_back(p->weak_from_this());
+    }
+
+    // For each session in our local list, try to acquire a strong
+    // pointer. If successful, then send the message on that session.
+    for(auto const& wp : v)
+        if(auto sp = wp.lock())
+            sp->send(ss);
+}
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/shared_state.hpp b/src/boost/libs/beast/example/websocket/server/chat-multi/shared_state.hpp
new file mode 100644
index 000000000..08f4b2d34
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/shared_state.hpp
@@ -0,0 +1,48 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_SHARED_STATE_HPP
+#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_SHARED_STATE_HPP
+
+#include <boost/smart_ptr.hpp>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_set>
+
+// Forward declaration
+class websocket_session;
+
+// Represents the shared server state
+class shared_state
+{
+    std::string const doc_root_;
+
+    // This mutex synchronizes all access to sessions_
+    std::mutex mutex_;
+
+    // Keep a list of all the connected clients
+    std::unordered_set<websocket_session*> sessions_;
+
+public:
+    explicit
+    shared_state(std::string doc_root);
+
+    std::string const&
+    doc_root() const noexcept
+    {
+        return doc_root_;
+    }
+
+    void join  (websocket_session* session);
+    void leave (websocket_session* session);
+    void send  (std::string message);
+};
+
+#endif
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/websocket_session.cpp b/src/boost/libs/beast/example/websocket/server/chat-multi/websocket_session.cpp
new file mode 100644
index 000000000..4807a5f1e
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/websocket_session.cpp
@@ -0,0 +1,135 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#include "websocket_session.hpp"
+#include <iostream>
+
+websocket_session::
+websocket_session(
+    tcp::socket&& socket,
+    boost::shared_ptr<shared_state> const& state)
+    : ws_(std::move(socket))
+    , state_(state)
+{
+}
+
+websocket_session::
+~websocket_session()
+{
+    // Remove this session from the list of active sessions
+    state_->leave(this);
+}
+
+void
+websocket_session::
+fail(beast::error_code ec, char const* what)
+{
+    // Don't report these
+    if( ec == net::error::operation_aborted ||
+        ec == websocket::error::closed)
+        return;
+
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+void
+websocket_session::
+on_accept(beast::error_code ec)
+{
+    // Handle the error, if any
+    if(ec)
+        return fail(ec, "accept");
+
+    // Add this session to the list of active sessions
+    state_->join(this);
+
+    // Read a message
+    ws_.async_read(
+        buffer_,
+        beast::bind_front_handler(
+            &websocket_session::on_read,
+            shared_from_this()));
+}
+
+void
+websocket_session::
+on_read(beast::error_code ec, std::size_t)
+{
+    // Handle the error, if any
+    if(ec)
+        return fail(ec, "read");
+
+    // Send to all connections
+    state_->send(beast::buffers_to_string(buffer_.data()));
+
+    // Clear the buffer
+    buffer_.consume(buffer_.size());
+
+    // Read another message
+    ws_.async_read(
+        buffer_,
+        beast::bind_front_handler(
+            &websocket_session::on_read,
+            shared_from_this()));
+}
+
+void
+websocket_session::
+send(boost::shared_ptr<std::string const> const& ss)
+{
+    // Post our work to the strand, this ensures
+    // that the members of `this` will not be
+    // accessed concurrently.
+
+    net::post(
+        ws_.get_executor(),
+        beast::bind_front_handler(
+            &websocket_session::on_send,
+            shared_from_this(),
+            ss));
+}
+
+void
+websocket_session::
+on_send(boost::shared_ptr<std::string const> const& ss)
+{
+    // Always add to queue
+    queue_.push_back(ss);
+
+    // Are we already writing?
+    if(queue_.size() > 1)
+        return;
+
+    // We are not currently writing, so send this immediately
+    ws_.async_write(
+        net::buffer(*queue_.front()),
+        beast::bind_front_handler(
+            &websocket_session::on_write,
+            shared_from_this()));
+}
+
+void
+websocket_session::
+on_write(beast::error_code ec, std::size_t)
+{
+    // Handle the error, if any
+    if(ec)
+        return fail(ec, "write");
+
+    // Remove the string from the queue
+    queue_.erase(queue_.begin());
+
+    // Send the next message if any
+    if(! queue_.empty())
+        ws_.async_write(
+            net::buffer(*queue_.front()),
+            beast::bind_front_handler(
+                &websocket_session::on_write,
+                shared_from_this()));
+}
diff --git a/src/boost/libs/beast/example/websocket/server/chat-multi/websocket_session.hpp b/src/boost/libs/beast/example/websocket/server/chat-multi/websocket_session.hpp
new file mode 100644
index 000000000..c47d48ac9
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/chat-multi/websocket_session.hpp
@@ -0,0 +1,86 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/vinniefalco/CppCon2018
+//
+
+#ifndef BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_WEBSOCKET_SESSION_HPP
+#define BOOST_BEAST_EXAMPLE_WEBSOCKET_CHAT_MULTI_WEBSOCKET_SESSION_HPP
+
+#include "net.hpp"
+#include "beast.hpp"
+#include "shared_state.hpp"
+
+#include <cstdlib>
+#include <memory>
+#include <string>
+#include <vector>
+
+// Forward declaration
+class shared_state;
+
+/** Represents an active WebSocket connection to the server
+*/
+class websocket_session : public boost::enable_shared_from_this<websocket_session>
+{
+    beast::flat_buffer buffer_;
+    websocket::stream<beast::tcp_stream> ws_;
+    boost::shared_ptr<shared_state> state_;
+    std::vector<boost::shared_ptr<std::string const>> queue_;
+
+    void fail(beast::error_code ec, char const* what);
+    void on_accept(beast::error_code ec);
+    void on_read(beast::error_code ec, std::size_t bytes_transferred);
+    void on_write(beast::error_code ec, std::size_t bytes_transferred);
+
+public:
+    websocket_session(
+        tcp::socket&& socket,
+        boost::shared_ptr<shared_state> const& state);
+
+    ~websocket_session();
+
+    template<class Body, class Allocator>
+    void
+    run(http::request<Body, http::basic_fields<Allocator>> req);
+
+    // Send a message
+    void
+    send(boost::shared_ptr<std::string const> const& ss);
+
+private:
+    void
+    on_send(boost::shared_ptr<std::string const> const& ss);
+};
+
+template<class Body, class Allocator>
+void
+websocket_session::
+run(http::request<Body, http::basic_fields<Allocator>> req)
+{
+    // Set suggested timeout settings for the websocket
+    ws_.set_option(
+        websocket::stream_base::timeout::suggested(
+            beast::role_type::server));
+
+    // Set a decorator to change the Server of the handshake
+    ws_.set_option(websocket::stream_base::decorator(
+        [](websocket::response_type& res)
+        {
+            res.set(http::field::server,
+                std::string(BOOST_BEAST_VERSION_STRING) +
+                    " websocket-chat-multi");
+        }));
+
+    // Accept the websocket handshake
+    ws_.async_accept(
+        req,
+        beast::bind_front_handler(
+            &websocket_session::on_accept,
+            shared_from_this()));
+}
+
+#endif
diff --git a/src/boost/libs/beast/example/websocket/server/coro-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/coro-ssl/CMakeLists.txt
new file mode 100644
index 000000000..a302a2f56
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/coro-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/server/coro-ssl "/")
+
+    add_executable (websocket-server-coro-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        websocket_server_coro_ssl.cpp
+    )
+
+    set_property(TARGET websocket-server-coro-ssl PROPERTY FOLDER "example-websocket-server")
+
+    target_link_libraries (websocket-server-coro-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/server/coro-ssl/Jamfile b/src/boost/libs/beast/example/websocket/server/coro-ssl/Jamfile
new file mode 100644
index 000000000..621b0ce58
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/coro-ssl/Jamfile
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-server-coro-ssl :
+    websocket_server_coro_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/coro-ssl/websocket_server_coro_ssl.cpp b/src/boost/libs/beast/example/websocket/server/coro-ssl/websocket_server_coro_ssl.cpp
new file mode 100644
index 000000000..3e1785f00
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/coro-ssl/websocket_server_coro_ssl.cpp
@@ -0,0 +1,206 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL server, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/spawn.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+void
+do_session(
+    websocket::stream<
+        beast::ssl_stream<beast::tcp_stream>>& ws,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // Set the timeout.
+    beast::get_lowest_layer(ws).expires_after(std::chrono::seconds(30));
+
+    // Perform the SSL handshake
+    ws.next_layer().async_handshake(ssl::stream_base::server, yield[ec]);
+    if(ec)
+        return fail(ec, "handshake");
+
+    // Turn off the timeout on the tcp_stream, because
+    // the websocket stream has its own timeout system.
+    beast::get_lowest_layer(ws).expires_never();
+
+    // Set suggested timeout settings for the websocket
+    ws.set_option(
+        websocket::stream_base::timeout::suggested(
+            beast::role_type::server));
+
+    // Set a decorator to change the Server of the handshake
+    ws.set_option(websocket::stream_base::decorator(
+        [](websocket::response_type& res)
+        {
+            res.set(http::field::server,
+                std::string(BOOST_BEAST_VERSION_STRING) +
+                    " websocket-server-coro-ssl");
+        }));
+
+    // Accept the websocket handshake
+    ws.async_accept(yield[ec]);
+    if(ec)
+        return fail(ec, "accept");
+
+    for(;;)
+    {
+        // This buffer will hold the incoming message
+        beast::flat_buffer buffer;
+
+        // Read a message
+        ws.async_read(buffer, yield[ec]);
+
+        // This indicates that the session was closed
+        if(ec == websocket::error::closed)
+            break;
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Echo the message back
+        ws.text(ws.got_text());
+        ws.async_write(buffer.data(), yield[ec]);
+        if(ec)
+            return fail(ec, "write");
+    }
+}
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+void
+do_listen(
+    net::io_context& ioc,
+    ssl::context& ctx,
+    tcp::endpoint endpoint,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // Open the acceptor
+    tcp::acceptor acceptor(ioc);
+    acceptor.open(endpoint.protocol(), ec);
+    if(ec)
+        return fail(ec, "open");
+
+    // Allow address reuse
+    acceptor.set_option(net::socket_base::reuse_address(true), ec);
+    if(ec)
+        return fail(ec, "set_option");
+
+    // Bind to the server address
+    acceptor.bind(endpoint, ec);
+    if(ec)
+        return fail(ec, "bind");
+
+    // Start listening for connections
+    acceptor.listen(net::socket_base::max_listen_connections, ec);
+    if(ec)
+        return fail(ec, "listen");
+
+    for(;;)
+    {
+        tcp::socket socket(ioc);
+        acceptor.async_accept(socket, yield[ec]);
+        if(ec)
+            fail(ec, "accept");
+        else
+            boost::asio::spawn(
+                acceptor.get_executor(),
+                std::bind(
+                    &do_session,
+                    websocket::stream<beast::ssl_stream<
+                        beast::tcp_stream>>(std::move(socket), ctx),
+                    std::placeholders::_1));
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-coro-ssl <address> <port> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-server-coro-ssl 0.0.0.0 8080 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Spawn a listening port
+    boost::asio::spawn(ioc,
+        std::bind(
+            &do_listen,
+            std::ref(ioc),
+            std::ref(ctx),
+            tcp::endpoint{address, port},
+            std::placeholders::_1));
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/coro/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/coro/CMakeLists.txt
new file mode 100644
index 000000000..c8e408d1c
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/coro/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/server/coro "/")
+
+add_executable (websocket-server-coro
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_server_coro.cpp
+)
+
+target_link_libraries(websocket-server-coro
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-server-coro PROPERTY FOLDER "example-websocket-server")
diff --git a/src/boost/libs/beast/example/websocket/server/coro/Jamfile b/src/boost/libs/beast/example/websocket/server/coro/Jamfile
new file mode 100644
index 000000000..5e8cbf948
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/coro/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-server-coro :
+    websocket_server_coro.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/coro/websocket_server_coro.cpp b/src/boost/libs/beast/example/websocket/server/coro/websocket_server_coro.cpp
new file mode 100644
index 000000000..e15b01079
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/coro/websocket_server_coro.cpp
@@ -0,0 +1,180 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket server, coroutine
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/spawn.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+void
+do_session(
+    websocket::stream<beast::tcp_stream>& ws,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // Set suggested timeout settings for the websocket
+    ws.set_option(
+        websocket::stream_base::timeout::suggested(
+            beast::role_type::server));
+
+    // Set a decorator to change the Server of the handshake
+    ws.set_option(websocket::stream_base::decorator(
+        [](websocket::response_type& res)
+        {
+            res.set(http::field::server,
+                std::string(BOOST_BEAST_VERSION_STRING) +
+                    " websocket-server-coro");
+        }));
+
+    // Accept the websocket handshake
+    ws.async_accept(yield[ec]);
+    if(ec)
+        return fail(ec, "accept");
+
+    for(;;)
+    {
+        // This buffer will hold the incoming message
+        beast::flat_buffer buffer;
+
+        // Read a message
+        ws.async_read(buffer, yield[ec]);
+
+        // This indicates that the session was closed
+        if(ec == websocket::error::closed)
+            break;
+
+        if(ec)
+            return fail(ec, "read");
+
+        // Echo the message back
+        ws.text(ws.got_text());
+        ws.async_write(buffer.data(), yield[ec]);
+        if(ec)
+            return fail(ec, "write");
+    }
+}
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+void
+do_listen(
+    net::io_context& ioc,
+    tcp::endpoint endpoint,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    // Open the acceptor
+    tcp::acceptor acceptor(ioc);
+    acceptor.open(endpoint.protocol(), ec);
+    if(ec)
+        return fail(ec, "open");
+
+    // Allow address reuse
+    acceptor.set_option(net::socket_base::reuse_address(true), ec);
+    if(ec)
+        return fail(ec, "set_option");
+
+    // Bind to the server address
+    acceptor.bind(endpoint, ec);
+    if(ec)
+        return fail(ec, "bind");
+
+    // Start listening for connections
+    acceptor.listen(net::socket_base::max_listen_connections, ec);
+    if(ec)
+        return fail(ec, "listen");
+
+    for(;;)
+    {
+        tcp::socket socket(ioc);
+        acceptor.async_accept(socket, yield[ec]);
+        if(ec)
+            fail(ec, "accept");
+        else
+            boost::asio::spawn(
+                acceptor.get_executor(),
+                std::bind(
+                    &do_session,
+                    websocket::stream<
+                        beast::tcp_stream>(std::move(socket)),
+                    std::placeholders::_1));
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-coro <address> <port> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-server-coro 0.0.0.0 8080 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc(threads);
+
+    // Spawn a listening port
+    boost::asio::spawn(ioc,
+        std::bind(
+            &do_listen,
+            std::ref(ioc),
+            tcp::endpoint{address, port},
+            std::placeholders::_1));
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/fast/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/fast/CMakeLists.txt
new file mode 100644
index 000000000..93d469e91
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/fast/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/server/fast "/")
+
+add_executable (websocket-server-fast
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_server_fast.cpp
+)
+
+target_link_libraries(websocket-server-fast
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-server-fast PROPERTY FOLDER "example-websocket-server")
diff --git a/src/boost/libs/beast/example/websocket/server/fast/Jamfile b/src/boost/libs/beast/example/websocket/server/fast/Jamfile
new file mode 100644
index 000000000..3e6cbf5b0
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/fast/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-server-fast :
+    websocket_server_fast.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    <library>/boost/coroutine//boost_coroutine
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/fast/websocket_server_fast.cpp b/src/boost/libs/beast/example/websocket/server/fast/websocket_server_fast.cpp
new file mode 100644
index 000000000..7f2a5e3cb
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/fast/websocket_server_fast.cpp
@@ -0,0 +1,480 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket server, fast
+//
+//------------------------------------------------------------------------------
+
+/*  This server contains the following ports:
+
+    Synchronous     <base port + 0>
+    Asynchronous    <base port + 1>
+    Coroutine       <base port + 2>
+
+    This program is optimized for the Autobahn|Testsuite
+    benchmarking and WebSocket compliants testing program.
+
+    See:
+    https://github.com/crossbario/autobahn-testsuite
+*/
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/http.hpp>
+#include <boost/beast/version.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/asio/strand.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << (std::string(what) + ": " + ec.message() + "\n");
+}
+
+// Adjust settings on the stream
+template<class NextLayer>
+void
+setup_stream(websocket::stream<NextLayer>& ws)
+{
+    // These values are tuned for Autobahn|Testsuite, and
+    // should also be generally helpful for increased performance.
+
+    websocket::permessage_deflate pmd;
+    pmd.client_enable = true;
+    pmd.server_enable = true;
+    pmd.compLevel = 3;
+    ws.set_option(pmd);
+
+    ws.auto_fragment(false);
+
+    // Autobahn|Testsuite needs this
+    ws.read_message_max(64 * 1024 * 1024);
+}
+
+//------------------------------------------------------------------------------
+
+void
+do_sync_session(websocket::stream<beast::tcp_stream>& ws)
+{
+    beast::error_code ec;
+
+    setup_stream(ws);
+
+    // Set a decorator to change the Server of the handshake
+    ws.set_option(websocket::stream_base::decorator(
+        [](websocket::response_type& res)
+        {
+            res.set(http::field::server, std::string(
+                BOOST_BEAST_VERSION_STRING) + "-Sync");
+        }));
+
+    ws.accept(ec);
+    if(ec)
+        return fail(ec, "accept");
+
+    for(;;)
+    {
+        beast::flat_buffer buffer;
+
+        ws.read(buffer, ec);
+        if(ec == websocket::error::closed)
+            break;
+        if(ec)
+            return fail(ec, "read");
+        ws.text(ws.got_text());
+        ws.write(buffer.data(), ec);
+        if(ec)
+            return fail(ec, "write");
+    }
+}
+
+void
+do_sync_listen(
+    net::io_context& ioc,
+    tcp::endpoint endpoint)
+{
+    beast::error_code ec;
+    tcp::acceptor acceptor{ioc, endpoint};
+    for(;;)
+    {
+        tcp::socket socket{ioc};
+
+        acceptor.accept(socket, ec);
+        if(ec)
+            return fail(ec, "accept");
+
+        std::thread(std::bind(
+            &do_sync_session,
+            websocket::stream<beast::tcp_stream>(
+                std::move(socket)))).detach();
+    }
+}
+
+//------------------------------------------------------------------------------
+
+// Echoes back all received WebSocket messages
+class async_session : public std::enable_shared_from_this<async_session>
+{
+    websocket::stream<beast::tcp_stream> ws_;
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    async_session(tcp::socket&& socket)
+        : ws_(std::move(socket))
+    {
+        setup_stream(ws_);
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // Set suggested timeout settings for the websocket
+        ws_.set_option(
+            websocket::stream_base::timeout::suggested(
+                beast::role_type::server));
+
+        // Set a decorator to change the Server of the handshake
+        ws_.set_option(websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server, std::string(
+                    BOOST_BEAST_VERSION_STRING) + "-Async");
+            }));
+
+        // Accept the websocket handshake
+        ws_.async_accept(
+            beast::bind_front_handler(
+                &async_session::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "accept");
+
+        // Read a message
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        // Read a message into our buffer
+        ws_.async_read(
+            buffer_,
+            beast::bind_front_handler(
+                &async_session::on_read,
+                shared_from_this()));
+    }
+
+    void
+    on_read(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        // This indicates that the async_session was closed
+        if(ec == websocket::error::closed)
+            return;
+
+        if(ec)
+            fail(ec, "read");
+
+        // Echo the message
+        ws_.text(ws_.got_text());
+        ws_.async_write(
+            buffer_.data(),
+            beast::bind_front_handler(
+                &async_session::on_write,
+                shared_from_this()));
+    }
+
+    void
+    on_write(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        if(ec)
+            return fail(ec, "write");
+
+        // Clear the buffer
+        buffer_.consume(buffer_.size());
+
+        // Do another read
+        do_read();
+    }
+};
+
+// Accepts incoming connections and launches the sessions
+class async_listener : public std::enable_shared_from_this<async_listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+
+public:
+    async_listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint)
+        : ioc_(ioc)
+        , acceptor_(net::make_strand(ioc))
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        do_accept();
+    }
+
+private:
+    void
+    do_accept()
+    {
+        // The new connection gets its own strand
+        acceptor_.async_accept(
+            net::make_strand(ioc_),
+            beast::bind_front_handler(
+                &async_listener::on_accept,
+                shared_from_this()));
+    }
+
+    void
+    on_accept(beast::error_code ec, tcp::socket socket)
+    {
+        if(ec)
+        {
+            fail(ec, "accept");
+        }
+        else
+        {
+            // Create the async_session and run it
+            std::make_shared<async_session>(std::move(socket))->run();
+        }
+
+        // Accept another connection
+        do_accept();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+void
+do_coro_session(
+    websocket::stream<beast::tcp_stream>& ws,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    setup_stream(ws);
+
+    // Set suggested timeout settings for the websocket
+    ws.set_option(
+        websocket::stream_base::timeout::suggested(
+            beast::role_type::server));
+
+    // Set a decorator to change the Server of the handshake
+    ws.set_option(websocket::stream_base::decorator(
+        [](websocket::response_type& res)
+        {
+            res.set(http::field::server, std::string(
+                BOOST_BEAST_VERSION_STRING) + "-Fiber");
+        }));
+
+    ws.async_accept(yield[ec]);
+    if(ec)
+        return fail(ec, "accept");
+
+    for(;;)
+    {
+        beast::flat_buffer buffer;
+
+        ws.async_read(buffer, yield[ec]);
+        if(ec == websocket::error::closed)
+            break;
+        if(ec)
+            return fail(ec, "read");
+
+        ws.text(ws.got_text());
+        ws.async_write(buffer.data(), yield[ec]);
+        if(ec)
+            return fail(ec, "write");
+    }
+}
+
+void
+do_coro_listen(
+    net::io_context& ioc,
+    tcp::endpoint endpoint,
+    net::yield_context yield)
+{
+    beast::error_code ec;
+
+    tcp::acceptor acceptor(ioc);
+    acceptor.open(endpoint.protocol(), ec);
+    if(ec)
+        return fail(ec, "open");
+
+    acceptor.set_option(net::socket_base::reuse_address(true), ec);
+    if(ec)
+        return fail(ec, "set_option");
+
+    acceptor.bind(endpoint, ec);
+    if(ec)
+        return fail(ec, "bind");
+
+    acceptor.listen(net::socket_base::max_listen_connections, ec);
+    if(ec)
+        return fail(ec, "listen");
+
+    for(;;)
+    {
+        tcp::socket socket(ioc);
+
+        acceptor.async_accept(socket, yield[ec]);
+        if(ec)
+        {
+            fail(ec, "accept");
+            continue;
+        }
+
+        boost::asio::spawn(
+            acceptor.get_executor(),
+            std::bind(
+                &do_coro_session,
+                websocket::stream<
+                    beast::tcp_stream>(std::move(socket)),
+                std::placeholders::_1));
+    }
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-fast <address> <starting-port> <threads>\n" <<
+            "Example:\n"
+            "    websocket-server-fast 0.0.0.0 8080 1\n"
+            "  Connect to:\n"
+            "    starting-port+0 for synchronous,\n"
+            "    starting-port+1 for asynchronous,\n"
+            "    starting-port+2 for coroutine.\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Create sync port
+    std::thread(beast::bind_front_handler(
+        &do_sync_listen,
+        std::ref(ioc),
+        tcp::endpoint{
+            address,
+            static_cast<unsigned short>(port + 0u)}
+                )).detach();
+
+    // Create async port
+    std::make_shared<async_listener>(
+        ioc,
+        tcp::endpoint{
+            address,
+            static_cast<unsigned short>(port + 1u)})->run();
+
+    // Create coro port
+    boost::asio::spawn(ioc,
+        std::bind(
+            &do_coro_listen,
+            std::ref(ioc),
+            tcp::endpoint{
+                address,
+                static_cast<unsigned short>(port + 2u)},
+            std::placeholders::_1));
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/stackless-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/stackless-ssl/CMakeLists.txt
new file mode 100644
index 000000000..7ae66a07b
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/stackless-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/server/stackless-ssl "/")
+
+    add_executable (websocket-server-stackless-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        websocket_server_stackless_ssl.cpp
+    )
+
+    set_property(TARGET websocket-server-stackless-ssl PROPERTY FOLDER "example-websocket-server")
+
+    target_link_libraries (websocket-server-stackless-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/server/stackless-ssl/Jamfile b/src/boost/libs/beast/example/websocket/server/stackless-ssl/Jamfile
new file mode 100644
index 000000000..b0eaa4aa2
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/stackless-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-server-stackless-ssl :
+    websocket_server_stackless_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/stackless-ssl/websocket_server_stackless_ssl.cpp b/src/boost/libs/beast/example/websocket/server/stackless-ssl/websocket_server_stackless_ssl.cpp
new file mode 100644
index 000000000..c6eaec60c
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/stackless-ssl/websocket_server_stackless_ssl.cpp
@@ -0,0 +1,314 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL server, stackless coroutine
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/coroutine.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+class session
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<session>
+{
+    websocket::stream<beast::ssl_stream<beast::tcp_stream>> ws_;
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the socket
+    session(tcp::socket&& socket, ssl::context& ctx)
+        : ws_(std::move(socket), ctx)
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(ws_.get_executor(),
+                      beast::bind_front_handler(&session::loop,
+                                                shared_from_this(),
+                                                beast::error_code{},
+                                                0));
+    }
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+
+        reenter(*this)
+        {
+            // Set the timeout.
+            beast::get_lowest_layer(ws_).expires_after(std::chrono::seconds(30));
+
+            // Perform the SSL handshake
+            yield ws_.next_layer().async_handshake(
+                ssl::stream_base::server,
+                std::bind(
+                    &session::loop,
+                    shared_from_this(),
+                    std::placeholders::_1,
+                    0));
+            if(ec)
+                return fail(ec, "handshake");
+
+            // Turn off the timeout on the tcp_stream, because
+            // the websocket stream has its own timeout system.
+            beast::get_lowest_layer(ws_).expires_never();
+
+            // Set suggested timeout settings for the websocket
+            ws_.set_option(
+                websocket::stream_base::timeout::suggested(
+                    beast::role_type::server));
+
+            // Set a decorator to change the Server of the handshake
+            ws_.set_option(websocket::stream_base::decorator(
+                [](websocket::response_type& res)
+                {
+                    res.set(http::field::server,
+                        std::string(BOOST_BEAST_VERSION_STRING) +
+                            " websocket-server-stackless-ssl");
+                }));
+
+            // Accept the websocket handshake
+            yield ws_.async_accept(
+                std::bind(
+                    &session::loop,
+                    shared_from_this(),
+                    std::placeholders::_1,
+                    0));
+            if(ec)
+                return fail(ec, "accept");
+
+            for(;;)
+            {
+                // Read a message into our buffer
+                yield ws_.async_read(
+                    buffer_,
+                    std::bind(
+                        &session::loop,
+                        shared_from_this(),
+                        std::placeholders::_1,
+                        std::placeholders::_2));
+                if(ec == websocket::error::closed)
+                {
+                    // This indicates that the session was closed
+                    return;
+                }
+                if(ec)
+                    fail(ec, "read");
+
+                // Echo the message
+                ws_.text(ws_.got_text());
+                yield ws_.async_write(
+                    buffer_.data(),
+                    std::bind(
+                        &session::loop,
+                        shared_from_this(),
+                        std::placeholders::_1,
+                        std::placeholders::_2));
+                if(ec)
+                    return fail(ec, "write");
+
+                // Clear the buffer
+                buffer_.consume(buffer_.size());
+            }
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    ssl::context& ctx_;
+    tcp::acceptor acceptor_;
+    tcp::socket socket_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        ssl::context& ctx,
+        tcp::endpoint endpoint)
+        : ioc_(ioc)
+        , ctx_(ctx)
+        , acceptor_(ioc)
+        , socket_(ioc)
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        loop();
+    }
+
+private:
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(beast::error_code ec = {})
+    {
+        reenter(*this)
+        {
+            for(;;)
+            {
+                yield acceptor_.async_accept(
+                    socket_,
+                    std::bind(
+                        &listener::loop,
+                        shared_from_this(),
+                        std::placeholders::_1));
+                if(ec)
+                {
+                    fail(ec, "accept");
+                }
+                else
+                {
+                    // Create the session and run it
+                    std::make_shared<session>(std::move(socket_), ctx_)->run();
+                }
+
+                // Make sure each session gets its own strand
+                socket_ = tcp::socket(net::make_strand(ioc_));
+            }
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-async-ssl <address> <port> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-server-async-ssl 0.0.0.0 8080 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // The SSL context is required, and holds certificates
+    ssl::context ctx{ssl::context::tlsv12};
+
+    // This holds the self-signed certificate used by the server
+    load_server_certificate(ctx);
+
+    // Create and launch a listening port
+    std::make_shared<listener>(ioc, ctx, tcp::endpoint{address, port})->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/stackless/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/stackless/CMakeLists.txt
new file mode 100644
index 000000000..b260ca48b
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/stackless/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/server/stackless "/")
+
+add_executable (websocket-server-stackless
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_server_stackless.cpp
+)
+
+target_link_libraries(websocket-server-stackless
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-server-stackless PROPERTY FOLDER "example-websocket-server")
diff --git a/src/boost/libs/beast/example/websocket/server/stackless/Jamfile b/src/boost/libs/beast/example/websocket/server/stackless/Jamfile
new file mode 100644
index 000000000..ce9ab8987
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/stackless/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-server-stackless :
+    websocket_server_stackless.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/stackless/websocket_server_stackless.cpp b/src/boost/libs/beast/example/websocket/server/stackless/websocket_server_stackless.cpp
new file mode 100644
index 000000000..c57fe2899
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/stackless/websocket_server_stackless.cpp
@@ -0,0 +1,282 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket server, stackless coroutine
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/coroutine.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <algorithm>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Report a failure
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+// Echoes back all received WebSocket messages
+class session
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<session>
+{
+    websocket::stream<beast::tcp_stream> ws_;
+    beast::flat_buffer buffer_;
+
+public:
+    // Take ownership of the socket
+    explicit
+    session(tcp::socket socket)
+        : ws_(std::move(socket))
+    {
+    }
+
+    // Start the asynchronous operation
+    void
+    run()
+    {
+        // We need to be executing within a strand to perform async operations
+        // on the I/O objects in this session. Although not strictly necessary
+        // for single-threaded contexts, this example code is written to be
+        // thread-safe by default.
+        net::dispatch(ws_.get_executor(),
+                      beast::bind_front_handler(&session::loop,
+                                                shared_from_this(),
+                                                beast::error_code{},
+                                                0));
+    }
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(
+        beast::error_code ec,
+        std::size_t bytes_transferred)
+    {
+        boost::ignore_unused(bytes_transferred);
+        reenter(*this)
+        {
+            // Set suggested timeout settings for the websocket
+            ws_.set_option(
+                websocket::stream_base::timeout::suggested(
+                    beast::role_type::server));
+
+            // Set a decorator to change the Server of the handshake
+            ws_.set_option(websocket::stream_base::decorator(
+                [](websocket::response_type& res)
+                {
+                    res.set(http::field::server,
+                        std::string(BOOST_BEAST_VERSION_STRING) +
+                            " websocket-server-stackless");
+                }));
+
+            // Accept the websocket handshake
+            yield ws_.async_accept(
+                std::bind(
+                    &session::loop,
+                    shared_from_this(),
+                    std::placeholders::_1,
+                    0));
+            if(ec)
+                return fail(ec, "accept");
+
+            for(;;)
+            {
+                // Read a message into our buffer
+                yield ws_.async_read(
+                    buffer_,
+                    std::bind(
+                        &session::loop,
+                        shared_from_this(),
+                        std::placeholders::_1,
+                        std::placeholders::_2));
+                if(ec == websocket::error::closed)
+                {
+                    // This indicates that the session was closed
+                    return;
+                }
+                if(ec)
+                    fail(ec, "read");
+
+                // Echo the message
+                ws_.text(ws_.got_text());
+                yield ws_.async_write(
+                    buffer_.data(),
+                    std::bind(
+                        &session::loop,
+                        shared_from_this(),
+                        std::placeholders::_1,
+                        std::placeholders::_2));
+                if(ec)
+                    return fail(ec, "write");
+
+                // Clear the buffer
+                buffer_.consume(buffer_.size());
+            }
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+// Accepts incoming connections and launches the sessions
+class listener
+    : public boost::asio::coroutine
+    , public std::enable_shared_from_this<listener>
+{
+    net::io_context& ioc_;
+    tcp::acceptor acceptor_;
+    tcp::socket socket_;
+
+public:
+    listener(
+        net::io_context& ioc,
+        tcp::endpoint endpoint)
+        : ioc_(ioc)
+        , acceptor_(net::make_strand(ioc))
+        , socket_(net::make_strand(ioc))
+    {
+        beast::error_code ec;
+
+        // Open the acceptor
+        acceptor_.open(endpoint.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        // Allow address reuse
+        acceptor_.set_option(net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        // Bind to the server address
+        acceptor_.bind(endpoint, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        // Start listening for connections
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+    }
+
+    // Start accepting incoming connections
+    void
+    run()
+    {
+        loop();
+    }
+
+private:
+
+    #include <boost/asio/yield.hpp>
+
+    void
+    loop(beast::error_code ec = {})
+    {
+        reenter(*this)
+        {
+            for(;;)
+            {
+                yield acceptor_.async_accept(
+                    socket_,
+                    std::bind(
+                        &listener::loop,
+                        shared_from_this(),
+                        std::placeholders::_1));
+                if(ec)
+                {
+                    fail(ec, "accept");
+                }
+                else
+                {
+                    // Create the session and run it
+                    std::make_shared<session>(std::move(socket_))->run();
+                }
+
+                // Make sure each session gets its own strand
+                socket_ = tcp::socket(net::make_strand(ioc_));
+            }
+        }
+    }
+
+    #include <boost/asio/unyield.hpp>
+};
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    // Check command line arguments.
+    if (argc != 4)
+    {
+        std::cerr <<
+            "Usage: websocket-server-stackless <address> <port> <threads>\n" <<
+            "Example:\n" <<
+            "    websocket-server-stackless 0.0.0.0 8080 1\n";
+        return EXIT_FAILURE;
+    }
+    auto const address = net::ip::make_address(argv[1]);
+    auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+    auto const threads = std::max<int>(1, std::atoi(argv[3]));
+
+    // The io_context is required for all I/O
+    net::io_context ioc{threads};
+
+    // Create and launch a listening port
+    std::make_shared<listener>(ioc, tcp::endpoint{address, port})->run();
+
+    // Run the I/O service on the requested number of threads
+    std::vector<std::thread> v;
+    v.reserve(threads - 1);
+    for(auto i = threads - 1; i > 0; --i)
+        v.emplace_back(
+        [&ioc]
+        {
+            ioc.run();
+        });
+    ioc.run();
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/example/websocket/server/sync-ssl/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/sync-ssl/CMakeLists.txt
new file mode 100644
index 000000000..0ad254ce5
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/sync-ssl/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+if (OPENSSL_FOUND)
+    GroupSources(include/boost/beast beast)
+    GroupSources(example/common common)
+    GroupSources(example/websocket/server/sync-ssl "/")
+
+    add_executable (websocket-server-sync-ssl
+        ${BOOST_BEAST_FILES}
+        ${PROJECT_SOURCE_DIR}/example/common/server_certificate.hpp
+        Jamfile
+        websocket_server_sync_ssl.cpp
+    )
+
+    set_property(TARGET websocket-server-sync-ssl PROPERTY FOLDER "example-websocket-server")
+
+    target_link_libraries (websocket-server-sync-ssl
+        OpenSSL::SSL OpenSSL::Crypto
+        lib-asio
+        lib-asio-ssl
+        lib-beast
+        )
+
+endif()
diff --git a/src/boost/libs/beast/example/websocket/server/sync-ssl/Jamfile b/src/boost/libs/beast/example/websocket/server/sync-ssl/Jamfile
new file mode 100644
index 000000000..55ac35b84
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/sync-ssl/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import ac ;
+
+project
+    : requirements
+        [ ac.check-library /boost/beast//lib-asio-ssl : <library>/boost/beast//lib-asio-ssl/<link>static : <build>no ]
+    ;
+
+exe websocket-server-sync-ssl :
+    websocket_server_sync_ssl.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/sync-ssl/websocket_server_sync_ssl.cpp b/src/boost/libs/beast/example/websocket/server/sync-ssl/websocket_server_sync_ssl.cpp
new file mode 100644
index 000000000..5a7b4dc06
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/sync-ssl/websocket_server_sync_ssl.cpp
@@ -0,0 +1,137 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket SSL server, synchronous
+//
+//------------------------------------------------------------------------------
+
+#include "example/common/server_certificate.hpp"
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/ssl.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/ssl/stream.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <string>
+#include <thread>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+namespace ssl = boost::asio::ssl;       // from <boost/asio/ssl.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Echoes back all received WebSocket messages
+void
+do_session(tcp::socket& socket, ssl::context& ctx)
+{
+    try
+    {
+        // Construct the websocket stream around the socket
+        websocket::stream<beast::ssl_stream<tcp::socket&>> ws{socket, ctx};
+
+        // Perform the SSL handshake
+        ws.next_layer().handshake(ssl::stream_base::server);
+
+        // Set a decorator to change the Server of the handshake
+        ws.set_option(websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-server-sync-ssl");
+            }));
+
+        // Accept the websocket handshake
+        ws.accept();
+
+        for(;;)
+        {
+            // This buffer will hold the incoming message
+            beast::flat_buffer buffer;
+
+            // Read a message
+            ws.read(buffer);
+
+            // Echo the message back
+            ws.text(ws.got_text());
+            ws.write(buffer.data());
+        }
+    }
+    catch(beast::system_error const& se)
+    {
+        // This indicates that the session was closed
+        if(se.code() != websocket::error::closed)
+            std::cerr << "Error: " << se.code().message() << std::endl;
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+    }
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        // Check command line arguments.
+        if (argc != 3)
+        {
+            std::cerr <<
+                "Usage: websocket-server-sync-ssl <address> <port>\n" <<
+                "Example:\n" <<
+                "    websocket-server-sync-ssl 0.0.0.0 8080\n";
+            return EXIT_FAILURE;
+        }
+        auto const address = net::ip::make_address(argv[1]);
+        auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+
+        // The io_context is required for all I/O
+        net::io_context ioc{1};
+
+        // The SSL context is required, and holds certificates
+        ssl::context ctx{ssl::context::tlsv12};
+
+        // This holds the self-signed certificate used by the server
+        load_server_certificate(ctx);
+
+        // The acceptor receives incoming connections
+        tcp::acceptor acceptor{ioc, {address, port}};
+        for(;;)
+        {
+            // This will receive the new connection
+            tcp::socket socket{ioc};
+
+            // Block until we get a connection
+            acceptor.accept(socket);
+
+            // Launch the session, transferring ownership of the socket
+            std::thread{std::bind(
+                &do_session,
+                std::move(socket),
+                std::ref(ctx))}.detach();
+        }
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+}
diff --git a/src/boost/libs/beast/example/websocket/server/sync/CMakeLists.txt b/src/boost/libs/beast/example/websocket/server/sync/CMakeLists.txt
new file mode 100644
index 000000000..486998615
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/sync/CMakeLists.txt
@@ -0,0 +1,23 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources(include/boost/beast beast)
+GroupSources(example/websocket/server/sync "/")
+
+add_executable (websocket-server-sync
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    websocket_server_sync.cpp
+)
+
+target_link_libraries(websocket-server-sync
+    lib-asio
+    lib-beast)
+
+set_property(TARGET websocket-server-sync PROPERTY FOLDER "example-websocket-server")
diff --git a/src/boost/libs/beast/example/websocket/server/sync/Jamfile b/src/boost/libs/beast/example/websocket/server/sync/Jamfile
new file mode 100644
index 000000000..7fd14ce4a
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/sync/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe websocket-server-sync :
+    websocket_server_sync.cpp
+    :
+    <variant>coverage:<build>no
+    <variant>ubasan:<build>no
+    ;
diff --git a/src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp b/src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp
new file mode 100644
index 000000000..2f75c468e
--- /dev/null
+++ b/src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp
@@ -0,0 +1,121 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// Example: WebSocket server, synchronous
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <string>
+#include <thread>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+//------------------------------------------------------------------------------
+
+// Echoes back all received WebSocket messages
+void
+do_session(tcp::socket& socket)
+{
+    try
+    {
+        // Construct the stream by moving in the socket
+        websocket::stream<tcp::socket> ws{std::move(socket)};
+
+        // Set a decorator to change the Server of the handshake
+        ws.set_option(websocket::stream_base::decorator(
+            [](websocket::response_type& res)
+            {
+                res.set(http::field::server,
+                    std::string(BOOST_BEAST_VERSION_STRING) +
+                        " websocket-server-sync");
+            }));
+
+        // Accept the websocket handshake
+        ws.accept();
+
+        for(;;)
+        {
+            // This buffer will hold the incoming message
+            beast::flat_buffer buffer;
+
+            // Read a message
+            ws.read(buffer);
+
+            // Echo the message back
+            ws.text(ws.got_text());
+            ws.write(buffer.data());
+        }
+    }
+    catch(beast::system_error const& se)
+    {
+        // This indicates that the session was closed
+        if(se.code() != websocket::error::closed)
+            std::cerr << "Error: " << se.code().message() << std::endl;
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+    }
+}
+
+//------------------------------------------------------------------------------
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        // Check command line arguments.
+        if (argc != 3)
+        {
+            std::cerr <<
+                "Usage: websocket-server-sync <address> <port>\n" <<
+                "Example:\n" <<
+                "    websocket-server-sync 0.0.0.0 8080\n";
+            return EXIT_FAILURE;
+        }
+        auto const address = net::ip::make_address(argv[1]);
+        auto const port = static_cast<unsigned short>(std::atoi(argv[2]));
+
+        // The io_context is required for all I/O
+        net::io_context ioc{1};
+
+        // The acceptor receives incoming connections
+        tcp::acceptor acceptor{ioc, {address, port}};
+        for(;;)
+        {
+            // This will receive the new connection
+            tcp::socket socket{ioc};
+
+            // Block until we get a connection
+            acceptor.accept(socket);
+
+            // Launch the session, transferring ownership of the socket
+            std::thread{std::bind(
+                &do_session,
+                std::move(socket))}.detach();
+        }
+    }
+    catch (const std::exception& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+}
diff --git a/src/boost/libs/beast/index.html b/src/boost/libs/beast/index.html
new file mode 100644
index 000000000..f6ad9d2ab
--- /dev/null
+++ b/src/boost/libs/beast/index.html
@@ -0,0 +1,21 @@
+<html>
+    <head>
+        <title>Boost.Beast</title>
+        <meta http-equiv="refresh" content="0; URL=./doc/html/index.html">
+    </head>
+    <body>
+        Automatic redirection failed, please go to
+        <a href="./doc/html/index.html">./doc/html/index.html</a>
+        <hr>
+        <tt>
+        Boost.Beast<br>
+        <br>
+        Copyright&nbsp;(C)&nbsp;2016-2017&nbsp;Vinnie&nbsp;Falco<br>
+        <br>
+        Distributed under the Boost Software License, Version 1.0.
+        (See accompanying file LICENSE_1_0.txt or copy at
+        <a href=http://www.boost.org/LICENSE_1_0.txt>http://www.boost.org/LICENSE_1_0.txt</a>) <br>
+        <br>
+        </tt>
+    </body>
+</html>
diff --git a/src/boost/libs/beast/meta/explicit-failures-markup.xml b/src/boost/libs/beast/meta/explicit-failures-markup.xml
new file mode 100644
index 000000000..40d61a665
--- /dev/null
+++ b/src/boost/libs/beast/meta/explicit-failures-markup.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<explicit-failures-markup>
+    <!-- beast -->
+    <library name="beast">
+        <mark-unusable>
+            <toolset name="clang-linux-3.0*"/>
+            <toolset name="clang-linux-3.1*"/>
+            <toolset name="clang-linux-3.2*"/>
+            <toolset name="gcc-3.*"/>
+            <toolset name="gcc-4.0*"/>
+            <toolset name="gcc-4.1*"/>
+            <toolset name="gcc-4.2*"/>
+            <toolset name="gcc-4.3*"/>
+            <toolset name="gcc-4.4*"/>
+            <toolset name="gcc-4.5*"/>
+            <toolset name="gcc-4.6*"/>
+            <toolset name="gcc-4.7*"/>
+            <toolset name="gcc-mngw-3.*"/>
+            <toolset name="gcc-mngw-4.0*"/>
+            <toolset name="gcc-mngw-4.1*"/>
+            <toolset name="gcc-mngw-4.2*"/>
+            <toolset name="gcc-mngw-4.3*"/>
+            <toolset name="gcc-mngw-4.4*"/>
+            <toolset name="gcc-mngw-4.5*"/>
+            <toolset name="gcc-mngw-4.6*"/>
+            <toolset name="gcc-mngw-4.7*"/>
+            <toolset name="qcc-3.*"/>
+            <toolset name="qcc-4.0*"/>
+            <toolset name="qcc-4.1*"/>
+            <toolset name="qcc-4.2*"/>
+            <toolset name="qcc-4.3*"/>
+            <toolset name="qcc-4.4*"/>
+            <toolset name="qcc-4.5*"/>
+            <toolset name="qcc-4.6*"/>
+            <toolset name="qcc-4.7*"/>    
+            <toolset name="msvc-7.1"/>
+            <toolset name="msvc-8.*"/>
+            <toolset name="msvc-9.*"/>
+            <toolset name="msvc-10.*"/>
+            <toolset name="msvc-11.*"/>
+            <toolset name="msvc-12.*"/>
+            <note author="Vinnie Falco">C++11 is the minimum requirement.</note>
+        </mark-unusable>
+    </library>
+</explicit-failures-markup>
diff --git a/src/boost/libs/beast/meta/libraries.json b/src/boost/libs/beast/meta/libraries.json
new file mode 100644
index 000000000..b37a97203
--- /dev/null
+++ b/src/boost/libs/beast/meta/libraries.json
@@ -0,0 +1,15 @@
+{
+    "key": "beast",
+    "name": "Beast",
+    "authors": [
+        "Vinnie Falco"
+    ],
+    "description": "Portable HTTP, WebSocket, and network operations using only C++11 and Boost.Asio",
+    "category": [
+        "Concurrent",
+        "IO"
+    ],
+    "maintainers": [
+        "Vinnie Falco <vinnie.falco@gmail.com>"
+    ]
+}
diff --git a/src/boost/libs/beast/test/CMakeLists.txt b/src/boost/libs/beast/test/CMakeLists.txt
new file mode 100644
index 000000000..9e474bc14
--- /dev/null
+++ b/src/boost/libs/beast/test/CMakeLists.txt
@@ -0,0 +1,60 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+include_directories (./extern)
+include_directories (./extras/include)
+
+file (GLOB_RECURSE EXTRAS_FILES
+    ${PROJECT_SOURCE_DIR}/test/extras/include/*.hpp
+    ${PROJECT_SOURCE_DIR}/test/extras/include/*.ipp
+    ${PROJECT_SOURCE_DIR}/test/lib_ssl.cpp
+    )
+
+if (OPENSSL_FOUND)
+    link_libraries (${OPENSSL_LIBRARIES})
+endif()
+
+set (ZLIB_SOURCES
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/crc32.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/deflate.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inffast.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inffixed.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inflate.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inftrees.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/trees.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/zlib.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/zutil.h
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/adler32.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/compress.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/crc32.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/deflate.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/infback.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inffast.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inflate.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/inftrees.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/trees.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/uncompr.c
+    ${CMAKE_CURRENT_LIST_DIR}/extern/zlib-1.2.11/zutil.c
+)
+
+set (TEST_MAIN ${PROJECT_SOURCE_DIR}/test/lib_beast.cpp)
+
+GroupSources (. "/")
+
+add_library (
+    lib-test STATIC
+    ${CMAKE_CURRENT_LIST_DIR}/lib_test.cpp
+)
+
+set_property(TARGET lib-test PROPERTY FOLDER "static-libs")
+
+add_subdirectory (beast)
+add_subdirectory (bench)
+add_subdirectory (doc)
+add_subdirectory (example)
diff --git a/src/boost/libs/beast/test/Jamfile b/src/boost/libs/beast/test/Jamfile
new file mode 100644
index 000000000..02c8a7d04
--- /dev/null
+++ b/src/boost/libs/beast/test/Jamfile
@@ -0,0 +1,76 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+import testing ;
+import ../../config/checks/config : requires ;
+
+lib lib-test
+    : lib_test.cpp
+    : requirements
+    <link>static
+    $(defines)
+    : usage-requirements
+    <include>./extras/include
+    $(defines)
+    ;
+
+project /boost/beast/test
+    : requirements
+    [ requires
+        cxx11_constexpr
+        cxx11_decltype
+        cxx11_hdr_tuple
+        #cxx11_sfinae_expr # Every MSVC fails this
+        cxx11_template_aliases
+        cxx11_variadic_templates
+    ]
+    <include>./extern
+    <define>BOOST_BEAST_TESTS
+    <library>/boost/beast//lib-asio/<link>static
+    <boost.beast.separate-compilation>on:<library>/boost/beast//lib-beast/<link>static
+    <library>/boost/filesystem//boost_filesystem
+    <library>/boost/coroutine//boost_coroutine
+    ;
+
+path-constant ZLIB_SOURCES :
+    extern/zlib-1.2.11/adler32.c
+    extern/zlib-1.2.11/compress.c
+    extern/zlib-1.2.11/crc32.c
+    extern/zlib-1.2.11/deflate.c
+    extern/zlib-1.2.11/infback.c
+    extern/zlib-1.2.11/inffast.c
+    extern/zlib-1.2.11/inflate.c
+    extern/zlib-1.2.11/inftrees.c
+    extern/zlib-1.2.11/trees.c
+    extern/zlib-1.2.11/uncompr.c
+    extern/zlib-1.2.11/zutil.c
+    ;
+
+alias run-tests :
+    beast//run-tests
+    bench//run-tests
+    doc//run-tests
+    example//run-tests
+    ;
+
+alias fat-tests :
+    beast//fat-tests
+    doc//fat-tests
+    example//fat-tests
+    ;
+
+explicit fat-tests ;
+
+alias run-fat-tests :
+    beast//run-fat-tests
+    doc//run-fat-tests
+    example//run-fat-tests
+    ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/CMakeLists.txt b/src/boost/libs/beast/test/beast/CMakeLists.txt
new file mode 100644
index 000000000..4d486fe64
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/CMakeLists.txt
@@ -0,0 +1,46 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_definitions (-DBOOST_BEAST_ALLOW_DEPRECATED)
+
+# For buffers_cat
+add_definitions (-DBOOST_BEAST_TESTS)
+
+add_subdirectory (_experimental)
+add_subdirectory (core)
+add_subdirectory (http)
+add_subdirectory (ssl)
+add_subdirectory (websocket)
+add_subdirectory (zlib)
+
+#-------------------------------------------------------------------------------
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/extras/include/boost /)
+GroupSources (test/beast /)
+
+add_executable (tests-beast
+    ${BOOST_BEAST_FILES}
+    ${EXTRAS_FILES}
+    Jamfile
+    core.cpp
+    http.cpp
+    ssl.cpp
+    version.cpp
+    websocket.cpp
+    zlib.cpp
+)
+
+target_link_libraries(tests-beast
+    lib-asio
+    lib-asio-ssl
+    lib-beast
+    lib-test)
+
+set_property(TARGET tests-beast PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/Jamfile b/src/boost/libs/beast/test/beast/Jamfile
new file mode 100644
index 000000000..6cb681b7c
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/Jamfile
@@ -0,0 +1,45 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+alias run-tests :
+    [ compile core.cpp ]
+    [ compile http.cpp ]
+    [ compile ssl.cpp ]
+    [ compile version.cpp ]
+    [ compile websocket.cpp ]
+    [ compile zlib.cpp ]
+    _experimental//run-tests
+    core//run-tests
+    http//run-tests
+    ssl//run-tests
+    websocket//run-tests
+    zlib//run-tests
+    ;
+
+alias fat-tests :
+    _experimental//fat-tests
+    core//fat-tests
+    http//fat-tests
+    ssl//fat-tests
+    websocket//fat-tests
+    zlib//fat-tests
+    ;
+
+explicit fat-tests ;
+
+alias run-fat-tests :
+    _experimental//run-fat-tests
+    core//run-fat-tests
+    http//run-fat-tests
+    ssl//run-fat-tests
+    websocket//run-fat-tests
+    zlib//run-fat-tests
+    ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/_experimental/CMakeLists.txt b/src/boost/libs/beast/test/beast/_experimental/CMakeLists.txt
new file mode 100644
index 000000000..b588874ae
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/_experimental/CMakeLists.txt
@@ -0,0 +1,27 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/beast/_experimental "/")
+
+add_executable (tests-beast-_experimental
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    error.cpp
+    icy_stream.cpp
+    stream.cpp
+)
+
+target_link_libraries(tests-beast-_experimental
+    lib-asio
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-beast-_experimental PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/_experimental/Jamfile b/src/boost/libs/beast/test/beast/_experimental/Jamfile
new file mode 100644
index 000000000..2070f0970
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/_experimental/Jamfile
@@ -0,0 +1,38 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    error.cpp
+    icy_stream.cpp
+    stream.cpp
+    ;
+
+local RUN_TESTS ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f)
+        /boost/beast/test//lib-test
+    ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
+
+exe fat-tests :
+    $(SOURCES)
+    /boost/beast/test//lib-test
+    ;
+
+explicit fat-tests ;
+
+run $(SOURCES)
+    /boost/beast/test//lib-test
+    : : : : run-fat-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/_experimental/error.cpp b/src/boost/libs/beast/test/beast/_experimental/error.cpp
new file mode 100644
index 000000000..da182ad60
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/_experimental/error.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/_experimental/test/error.hpp>
diff --git a/src/boost/libs/beast/test/beast/_experimental/icy_stream.cpp b/src/boost/libs/beast/test/beast/_experimental/icy_stream.cpp
new file mode 100644
index 000000000..b60a162e2
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/_experimental/icy_stream.cpp
@@ -0,0 +1,127 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/_experimental/http/icy_stream.hpp>
+
+#include <boost/beast/core/buffers_adaptor.hpp>
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <array>
+#include <memory>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class icy_stream_test
+    : public unit_test::suite
+{
+public:
+    void
+    doMatrix(string_view in, string_view out)
+    {
+        using net::mutable_buffer;
+        net::io_context ioc;
+        auto len = out.size() + 8;
+        std::unique_ptr<char[]> p(new char[len]);
+        for(std::size_t i = 1; i < len; ++i)
+        {
+            std::array<mutable_buffer, 2> mbs{{
+                mutable_buffer(p.get(), i),
+                mutable_buffer(p.get() + i, len - i)}};
+            for(std::size_t j = 1; j < in.size(); ++j)
+            {
+                for(std::size_t k = 1; k < len; ++k)
+                {
+                    // sync
+                    {
+                        buffers_adaptor<decltype(mbs)> ba(mbs);
+                        std::memset(p.get(), 0, len);
+
+                        icy_stream<test::stream> is{ioc};
+                        is.next_layer().read_size(j);
+                        is.next_layer().append(in);
+                        connect(is.next_layer()).close();
+
+                        error_code ec;
+                        for(;;)
+                        {
+                            ba.commit(is.read_some(
+                                ba.prepare(read_size(ba, k)), ec));
+                            if(ec)
+                                break;
+                        }
+                        if(! BEAST_EXPECTS(
+                            ec == net::error::eof, ec.message()))
+                            continue;
+                        auto const s = buffers_to_string(ba.data());
+                        BEAST_EXPECTS(s == out, s);
+                    }
+                    // async
+                    {
+                        buffers_adaptor<decltype(mbs)> ba(mbs);
+                        std::memset(p.get(), 0, len);
+
+                        icy_stream<test::stream> is{ioc};
+                        is.next_layer().read_size(j);
+                        is.next_layer().append(in);
+                        connect(is.next_layer()).close();
+
+                        error_code ec;
+                        for(;;)
+                        {
+                            is.async_read_some(
+                                ba.prepare(read_size(ba, k)),
+                                [&ec, &ba](error_code ec_, std::size_t n)
+                                {
+                                    ec = ec_;
+                                    ba.commit(n);
+                                });
+                            ioc.run();
+                            ioc.restart();
+                            if(ec)
+                                break;
+                        }
+                        if(! BEAST_EXPECTS(
+                            ec == net::error::eof, ec.message()))
+                            continue;
+                        auto const s = buffers_to_string(ba.data());
+                        if(! BEAST_EXPECTS(s == out, s))
+                        {
+                            s.size();
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    void
+    testStream()
+    {
+        doMatrix("HTTP/1.1 200 OK\r\n", "HTTP/1.1 200 OK\r\n");
+        doMatrix("ICY 200 OK\r\n",      "HTTP/1.1 200 OK\r\n");
+    }
+
+    void
+    run() override
+    {
+        testStream();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,icy_stream);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/_experimental/stream.cpp b/src/boost/libs/beast/test/beast/_experimental/stream.cpp
new file mode 100644
index 000000000..d4089b200
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/_experimental/stream.cpp
@@ -0,0 +1,156 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/_experimental/test/stream.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/handler.hpp>
+
+namespace boost {
+namespace beast {
+
+class stream_test
+    : public unit_test::suite
+{
+public:
+    void
+    testTestStream()
+    {
+        char buf[1] = {};
+        net::mutable_buffer m0;
+        net::mutable_buffer m1(buf, sizeof(buf));
+
+        {
+            net::io_context ioc;
+
+            {
+                test::stream ts(ioc);
+            }
+            {
+                test::stream ts(ioc);
+                ts.close();
+            }
+            {
+                test::stream t1(ioc);
+                auto t2 = connect(t1);
+            }
+            {
+                test::stream t1(ioc);
+                auto t2 = connect(t1);
+                t2.close();
+            }
+        }
+        {
+            // abandon
+            net::io_context ioc;
+            test::stream ts(ioc);
+            ts.async_read_some(m1,
+                [](error_code, std::size_t)
+                {
+                    BEAST_FAIL();
+                });
+        }
+        //---
+        {
+            net::io_context ioc;
+            {
+                test::stream ts(ioc);
+                ts.async_read_some(m1,
+                    test::fail_handler(
+                        net::error::operation_aborted));
+            }
+            test::run(ioc);
+        }
+        {
+            net::io_context ioc;
+            test::stream ts(ioc);
+            ts.async_read_some(m1,
+                test::fail_handler(
+                    net::error::operation_aborted));
+            ts.close(); 
+            test::run(ioc);
+        }
+        {
+            net::io_context ioc;
+            test::stream t1(ioc);
+            auto t2 = connect(t1);
+            t1.async_read_some(m1,
+                test::fail_handler(
+                    net::error::eof));
+            t2.close();
+            test::run(ioc);
+        }
+        {
+            net::io_context ioc;
+            test::stream t1(ioc);
+            auto t2 = connect(t1);
+            t1.async_read_some(m1,
+                test::fail_handler(
+                    net::error::operation_aborted));
+            t1.close();
+            test::run(ioc);
+        }
+    }
+
+    void
+    testSharedAbandon()
+    {
+        struct handler
+        {
+            std::shared_ptr<test::stream> ts_;
+
+            void
+            operator()(error_code, std::size_t)
+            {
+            }
+        };
+
+        char buf[1] = {};
+        net::mutable_buffer m1(buf, sizeof(buf));
+
+        std::weak_ptr<test::stream> wp;
+
+        {
+            net::io_context ioc;
+            {
+                auto sp = std::make_shared<test::stream>(ioc);
+
+                sp->async_read_some(m1, handler{sp});
+                wp = sp;
+            }
+        }
+        BEAST_EXPECT(! wp.lock());
+    }
+
+    void
+    testLifetimeViolation()
+    {
+        // This should assert
+        std::shared_ptr<test::stream> sp;
+        {
+            net::io_context ioc;
+            sp = std::make_shared<test::stream>(ioc);
+        }
+        sp.reset();
+    }
+
+    void
+    run() override
+    {
+        testTestStream();
+        testSharedAbandon();
+        //testLifetimeViolation();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,test,stream);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core.cpp b/src/boost/libs/beast/test/beast/core.cpp
new file mode 100644
index 000000000..25b0b1c20
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// If including Windows.h generates errors, it
+// means that min/max macros are being substituted.
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/core.hpp>
diff --git a/src/boost/libs/beast/test/beast/core/CMakeLists.txt b/src/boost/libs/beast/test/beast/core/CMakeLists.txt
new file mode 100644
index 000000000..8c0844c42
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/CMakeLists.txt
@@ -0,0 +1,76 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/beast/core "/")
+
+add_executable (tests-beast-core
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    test_buffer.hpp
+    file_test.hpp
+    stream_tests.hpp
+    test_handler.hpp
+    _detail_base64.cpp
+    _detail_bind_continuation.cpp
+    _detail_buffer.cpp
+    _detail_clamp.cpp
+    _detail_get_io_context.cpp
+    _detail_is_invocable.cpp
+    _detail_read.cpp
+    _detail_sha1.cpp
+    _detail_tuple.cpp
+    _detail_variant.cpp
+    _detail_varint.cpp
+    async_base.cpp
+    basic_stream.cpp
+    bind_handler.cpp
+    buffer_traits.cpp
+    buffered_read_stream.cpp
+    buffers_adapter.cpp
+    buffers_adaptor.cpp
+    buffers_cat.cpp
+    buffers_prefix.cpp
+    buffers_range.cpp
+    buffers_suffix.cpp
+    buffers_to_string.cpp
+    detect_ssl.cpp
+    error.cpp
+    file.cpp
+    file_base.cpp
+    file_posix.cpp
+    file_stdio.cpp
+    file_win32.cpp
+    flat_buffer.cpp
+    flat_static_buffer.cpp
+    flat_stream.cpp
+    make_printable.cpp
+    multi_buffer.cpp
+    ostream.cpp
+    rate_policy.cpp
+    read_size.cpp
+    role.cpp
+    saved_handler.cpp
+    span.cpp
+    static_buffer.cpp
+    static_string.cpp
+    stream_traits.cpp
+    string.cpp
+    string_param.cpp
+    tcp_stream.cpp
+)
+
+target_link_libraries(tests-beast-core
+    lib-asio
+    lib-asio-ssl
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-beast-core PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/core/Jamfile b/src/boost/libs/beast/test/beast/core/Jamfile
new file mode 100644
index 000000000..9d8db7f47
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/Jamfile
@@ -0,0 +1,82 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    _detail_base64.cpp
+    _detail_bind_continuation.cpp
+    _detail_buffer.cpp
+    _detail_clamp.cpp
+    _detail_get_io_context.cpp
+    _detail_is_invocable.cpp
+    _detail_read.cpp
+    _detail_sha1.cpp
+    _detail_tuple.cpp
+    _detail_variant.cpp
+    _detail_varint.cpp
+    async_base.cpp
+    basic_stream.cpp
+    bind_handler.cpp
+    buffer_traits.cpp
+    buffered_read_stream.cpp
+    buffers_adapter.cpp
+    buffers_adaptor.cpp
+    buffers_cat.cpp
+    buffers_prefix.cpp
+    buffers_range.cpp
+    buffers_suffix.cpp
+    buffers_to_string.cpp
+    detect_ssl.cpp
+    error.cpp
+    file.cpp
+    file_base.cpp
+    file_posix.cpp
+    file_stdio.cpp
+    file_win32.cpp
+    flat_buffer.cpp
+    flat_static_buffer.cpp
+    flat_stream.cpp
+    make_printable.cpp
+    multi_buffer.cpp
+    ostream.cpp
+    rate_policy.cpp
+    read_size.cpp
+    role.cpp
+    saved_handler.cpp
+    span.cpp
+    static_buffer.cpp
+    static_string.cpp
+    stream_traits.cpp
+    string.cpp
+    string_param.cpp
+    tcp_stream.cpp
+    ;
+
+local RUN_TESTS ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f)
+        /boost/beast/test//lib-test
+    ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
+
+exe fat-tests :
+    $(SOURCES)
+    /boost/beast/test//lib-test
+    ;
+
+explicit fat-tests ;
+
+run $(SOURCES)
+    /boost/beast/test//lib-test
+    : : : : run-fat-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/core/_detail_base64.cpp b/src/boost/libs/beast/test/beast/core/_detail_base64.cpp
new file mode 100644
index 000000000..c4c06f240
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_base64.cpp
@@ -0,0 +1,90 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/base64.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class base64_test : public beast::unit_test::suite
+{
+public:
+    std::string
+    base64_encode(
+        std::uint8_t const* data,
+        std::size_t len)
+    {
+        std::string dest;
+        dest.resize(base64::encoded_size(len));
+        dest.resize(base64::encode(&dest[0], data, len));
+        return dest;
+    }
+
+    std::string
+    base64_encode(string_view s)
+    {
+        return base64_encode (reinterpret_cast <
+            std::uint8_t const*> (s.data()), s.size());
+    }
+
+    std::string
+    base64_decode(string_view data)
+    {
+        std::string dest;
+        dest.resize(base64::decoded_size(data.size()));
+        auto const result = base64::decode(
+            &dest[0], data.data(), data.size());
+        dest.resize(result.first);
+        return dest;
+    }
+
+    void
+    check (std::string const& in, std::string const& out)
+    {
+        auto const encoded = base64_encode (in);
+        BEAST_EXPECT(encoded == out);
+        BEAST_EXPECT(base64_decode (encoded) == in);
+    }
+
+    void
+    run()
+    {
+        check ("",       "");
+        check ("f",      "Zg==");
+        check ("fo",     "Zm8=");
+        check ("foo",    "Zm9v");
+        check ("foob",   "Zm9vYg==");
+        check ("fooba",  "Zm9vYmE=");
+        check ("foobar", "Zm9vYmFy");
+
+        check(
+            "Man is distinguished, not only by his reason, but by this singular passion from "
+            "other animals, which is a lust of the mind, that by a perseverance of delight "
+            "in the continued and indefatigable generation of knowledge, exceeds the short "
+            "vehemence of any carnal pleasure."
+            ,
+            "TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz"
+            "IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg"
+            "dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu"
+            "dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo"
+            "ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4="
+            );
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,base64);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_bind_continuation.cpp b/src/boost/libs/beast/test/beast/core/_detail_bind_continuation.cpp
new file mode 100644
index 000000000..bcc283b43
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_bind_continuation.cpp
@@ -0,0 +1,192 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/bind_continuation.hpp>
+
+#if 0
+
+#include "test_executor.hpp"
+#include "test_handler.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/error.hpp>
+#include <boost/beast/core/stream_traits.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/post.hpp>
+#include <boost/asio/defer.hpp>
+#include <boost/core/exchange.hpp>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class bind_continuation_test
+    : public beast::unit_test::suite
+{
+public:
+    class handler
+    {
+        bool pass_ = false;
+
+    public:
+        handler() = default;
+
+        ~handler()
+        {
+            BEAST_EXPECT(pass_);
+        }
+
+        handler(handler&& other)
+            : pass_(boost::exchange(other.pass_, true))
+        {
+        }
+
+        void operator()()
+        {
+            pass_ = true;
+        }
+    };
+
+    void
+    testBinder()
+    {
+        net::io_context ioc;
+        
+        // free functions
+
+        {
+            test_executor<> ex(ioc.get_executor());
+            BEAST_EXPECT(ex->total == 0);
+            net::dispatch(
+                bind_continuation(ex, handler{}));
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(ex->dispatch == 1);
+        }
+
+        {
+            test_executor<> ex(ioc.get_executor());
+            BEAST_EXPECT(ex->total == 0);
+            net::post(
+                bind_continuation(ex, handler{}));
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(ex->defer == 1);
+        }
+
+        {
+            test_executor<> ex(ioc.get_executor());
+            BEAST_EXPECT(ex->total == 0);
+            net::defer(
+                bind_continuation(ex, handler{}));
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(ex->defer == 1);
+        }
+
+        // members
+
+        {
+            test_executor<> ex(ioc.get_executor());
+            BEAST_EXPECT(ex->total == 0);
+            ex.dispatch(
+                bind_continuation(ex, handler{}),
+                std::allocator<void>{});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(ex->dispatch == 1);
+        }
+
+        {
+            test_executor<> ex(ioc.get_executor());
+            BEAST_EXPECT(ex->total == 0);
+            ex.post(
+                bind_continuation(ex, handler{}),
+                std::allocator<void>{});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(ex->post == 1);
+        }
+
+        {
+            test_executor<> ex(ioc.get_executor());
+            BEAST_EXPECT(ex->total == 0);
+            ex.defer(
+                bind_continuation(ex, handler{}),
+                std::allocator<void>{});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(ex->defer == 1);
+        }
+
+        // relational
+
+        {
+            auto h1 = bind_continuation(
+                ioc.get_executor(), handler{});
+            auto h2 = bind_continuation(
+                ioc.get_executor(), handler{});
+            BEAST_EXPECT(
+                net::get_associated_executor(h1) ==
+                net::get_associated_executor(h2));
+            BEAST_EXPECT(
+                std::addressof(
+                    net::get_associated_executor(h1).context()) ==
+                std::addressof(
+                    net::get_associated_executor(h2).context()));
+            h1();
+            h2();
+        }
+
+        {
+            net::io_context ioc1;
+            net::io_context ioc2;
+            auto h1 = bind_continuation(
+                ioc1.get_executor(), handler{});
+            auto h2 = bind_continuation(
+                ioc2.get_executor(), handler{});
+            BEAST_EXPECT(
+                net::get_associated_executor(h1) !=
+                net::get_associated_executor(h2));
+            BEAST_EXPECT(
+                std::addressof(
+                    net::get_associated_executor(h1).context()) !=
+                std::addressof(
+                    net::get_associated_executor(h2).context()));
+            h1();
+            h2();
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testJavadoc()
+    {
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    run() override
+    {
+        testBinder();
+        testJavadoc();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,bind_continuation);
+
+} // detail
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/_detail_buffer.cpp b/src/boost/libs/beast/test/beast/core/_detail_buffer.cpp
new file mode 100644
index 000000000..e64464915
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_buffer.cpp
@@ -0,0 +1,83 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+//#include <boost/beast/core/buffer.hpp>
+
+#include <boost/beast/core/detail/buffer.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <string>
+
+#include <boost/asio/error.hpp>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+// VFALCO No idea why boost::system::errc::message_size fails
+//        to compile, so we use net::error::eof instead.
+//
+class buffer_test : public beast::unit_test::suite
+{
+public:
+    template<class DynamicBuffer>
+    void
+    testPrepare()
+    {
+    #ifndef BOOST_NO_EXCEPTIONS
+        error_code ec;
+        DynamicBuffer b(32);
+        dynamic_buffer_prepare(b, 20, ec,
+            net::error::eof);
+        BEAST_EXPECTS(! ec, ec.message());
+        b.commit(20);
+        auto const result =
+            dynamic_buffer_prepare(b, 20, ec,
+            net::error::eof);
+        BEAST_EXPECT(result == boost::none);
+        BEAST_EXPECTS(
+            ec == net::error::eof, ec.message());
+    #else
+        fail("exceptions disabled", __FILE__, __LINE__);
+    #endif
+    }
+
+    template<class DynamicBuffer>
+    void
+    testPrepareNoexcept()
+    {
+        error_code ec;
+        DynamicBuffer b(32);
+        dynamic_buffer_prepare_noexcept(b, 20, ec,
+            net::error::eof);
+        BEAST_EXPECTS(! ec, ec.message());
+        b.commit(20);
+        auto const result =
+            detail::dynamic_buffer_prepare_noexcept(b, 20, ec,
+            net::error::eof);
+        BEAST_EXPECT(result == boost::none);
+        BEAST_EXPECTS(
+            ec == net::error::eof, ec.message());
+    }
+
+    void
+    run() override
+    {
+        testPrepare<flat_buffer>();
+        testPrepareNoexcept<flat_buffer>();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffer);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_clamp.cpp b/src/boost/libs/beast/test/beast/core/_detail_clamp.cpp
new file mode 100644
index 000000000..89e5d57c6
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_clamp.cpp
@@ -0,0 +1,40 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/clamp.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <climits>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class clamp_test : public beast::unit_test::suite
+{
+public:
+    void testClamp()
+    {
+        BEAST_EXPECT(clamp(
+            (std::numeric_limits<std::uint64_t>::max)()) ==
+                (std::numeric_limits<std::size_t>::max)());
+    }
+
+    void run() override
+    {
+        testClamp();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,clamp);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_get_io_context.cpp b/src/boost/libs/beast/test/beast/core/_detail_get_io_context.cpp
new file mode 100644
index 000000000..1ee977fec
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_get_io_context.cpp
@@ -0,0 +1,56 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/core/detail/get_io_context.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/strand.hpp>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class get_io_context_test : public beast::unit_test::suite
+{
+public:
+    void
+    testFunction()
+    {
+        struct none
+        {
+        };
+
+        net::io_context ioc;
+        BEAST_EXPECT(get_io_context(5) == nullptr);
+        BEAST_EXPECT(get_io_context(none{}) == nullptr);
+        BEAST_EXPECT(get_io_context(ioc) == &ioc);
+        BEAST_EXPECT(get_io_context(ioc.get_executor()) == &ioc);
+        BEAST_EXPECT(get_io_context(net::make_strand(ioc)) == &ioc);
+        BEAST_EXPECT(get_io_context(net::executor(ioc.get_executor())) == &ioc);
+#if 0
+        // VFALCO FIXME
+        BEAST_EXPECT(
+            get_io_context(
+                net::strand<net::executor>(
+                    net::executor(ioc.get_executor()))) == &ioc);
+#endif
+    }
+
+    void
+    run() override
+    {
+        testFunction();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,get_io_context);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_is_invocable.cpp b/src/boost/libs/beast/test/beast/core/_detail_is_invocable.cpp
new file mode 100644
index 000000000..e412ef189
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_is_invocable.cpp
@@ -0,0 +1,60 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/core/detail/is_invocable.hpp>
+#include <memory>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+namespace {
+
+//
+// is_invocable
+//
+
+struct is_invocable_udt1
+{
+    void operator()(int) const;
+};
+
+struct is_invocable_udt2
+{
+    int operator()(int) const;
+};
+
+struct is_invocable_udt3
+{
+    int operator()(int);
+};
+
+struct is_invocable_udt4
+{
+    void operator()(std::unique_ptr<int>);
+};
+
+#ifndef __INTELLISENSE__
+// VFALCO Fails to compile with Intellisense
+BOOST_STATIC_ASSERT(is_invocable<is_invocable_udt1, void(int)>::value);
+BOOST_STATIC_ASSERT(is_invocable<is_invocable_udt2, int(int)>::value);
+BOOST_STATIC_ASSERT(is_invocable<is_invocable_udt3, int(int)>::value);
+BOOST_STATIC_ASSERT(! is_invocable<is_invocable_udt1, void(void)>::value);
+BOOST_STATIC_ASSERT(! is_invocable<is_invocable_udt2, int(void)>::value);
+BOOST_STATIC_ASSERT(! is_invocable<is_invocable_udt2, void(void)>::value);
+BOOST_STATIC_ASSERT(! is_invocable<is_invocable_udt3 const, int(int)>::value);
+BOOST_STATIC_ASSERT(is_invocable<is_invocable_udt4, void(std::unique_ptr<int>)>::value);
+#endif
+
+} // (anonymous)
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_read.cpp b/src/boost/libs/beast/test/beast/core/_detail_read.cpp
new file mode 100644
index 000000000..dcd8524b5
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_read.cpp
@@ -0,0 +1,111 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/read.hpp>
+
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/completion_condition.hpp>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class read_test : public unit_test::suite
+{
+public:
+#if 0
+    void
+    testRead()
+    {
+        {
+            net::io_context ioc;
+            test::stream ts(ioc);
+            ostream(ts.buffer()) << "test";
+            error_code ec;
+            flat_buffer b;
+            read(ts, b, boost::asio::transfer_at_least(4), ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(buffers_to_string(b.data()) == "test");
+        }
+        {
+            net::io_context ioc;
+            test::stream ts(ioc);
+            auto tc = connect(ts);
+            ostream(ts.buffer()) << "test";
+            tc.close();
+            error_code ec;
+            flat_buffer b;
+            read(ts, b, boost::asio::transfer_all(), ec);
+            BEAST_EXPECTS(ec == boost::asio::error::eof, ec.message());
+            BEAST_EXPECT(buffers_to_string(b.data()) == "test");
+        }
+    }
+
+    void
+    testAsyncRead()
+    {
+        {
+            net::io_context ioc;
+            test::stream ts(ioc);
+            ostream(ts.buffer()) << "test";
+            flat_buffer b;
+            error_code ec;
+            bool invoked = false;
+            async_read(ts, b, boost::asio::transfer_at_least(4),
+                [&invoked, &ec](error_code ec_, std::size_t)
+                {
+                    ec = ec_;
+                    invoked = true;
+                });
+            ioc.run();
+            BEAST_EXPECT(invoked);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(buffers_to_string(b.data()) == "test");
+        }
+        {
+            net::io_context ioc;
+            test::stream ts(ioc);
+            auto tc = connect(ts);
+            ostream(ts.buffer()) << "test";
+            tc.close();
+            flat_buffer b;
+            error_code ec;
+            bool invoked = false;
+            async_read(ts, b, boost::asio::transfer_all(),
+                [&invoked, &ec](error_code ec_, std::size_t)
+                {
+                    ec = ec_;
+                    invoked = true;
+                });
+            ioc.run();
+            BEAST_EXPECT(invoked);
+            BEAST_EXPECTS(ec == boost::asio::error::eof, ec.message());
+            BEAST_EXPECT(buffers_to_string(b.data()) == "test");
+        }
+    }
+#endif
+    void
+    run() override
+    {
+        pass();
+        //testRead();
+        //testAsyncRead();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,read);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_sha1.cpp b/src/boost/libs/beast/test/beast/core/_detail_sha1.cpp
new file mode 100644
index 000000000..165ddf714
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_sha1.cpp
@@ -0,0 +1,84 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/core/detail/sha1.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <array>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class sha1_test : public beast::unit_test::suite
+{
+public:
+    static
+    inline
+    std::uint8_t
+    unhex(char c)
+    {
+        if(c >= '0' && c <= '9')
+            return c - '0';
+        if(c >= 'a' && c <= 'f')
+            return c - 'a' + 10;
+        if(c >= 'A' && c <= 'F')
+            return c - 'A' + 10;
+        throw std::invalid_argument("not a hex digit");
+    }
+
+    static
+    std::string
+    unhex(std::string const& in)
+    {
+        std::string out;
+        out.reserve(in.size() / 2);
+        if(in.size() % 2)
+            throw std::domain_error("invalid hex string");
+        for(std::size_t i = 0; i < in.size(); i += 2)
+            out.push_back(
+                (unhex(in[i])<<4) + unhex(in[i+1]));
+        return out;
+    }
+
+    void
+    check(std::string const& message, std::string const& answer)
+    {
+        std::string digest;
+        digest = unhex(answer);
+        sha1_context ctx;
+        std::string result;
+        result.resize(sha1_context::digest_size);
+        init(ctx);
+        update(ctx, message.data(), message.size());
+        finish(ctx, &result[0]);
+        BEAST_EXPECT(result == digest);
+    }
+
+    void
+    run()
+    {
+        // http://www.di-mgt.com.au/sha_testvectors.html
+        //
+        check("abc",
+            "a9993e36" "4706816a" "ba3e2571" "7850c26c" "9cd0d89d");
+        check("",
+            "da39a3ee" "5e6b4b0d" "3255bfef" "95601890" "afd80709");
+        check("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+            "84983e44" "1c3bd26e" "baae4aa1" "f95129e5" "e54670f1");
+        check("abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
+            "a49b2446" "a02c645b" "f419f995" "b6709125" "3a04a259");
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,sha1);
+
+} // test
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_static_const.cpp b/src/boost/libs/beast/test/beast/core/_detail_static_const.cpp
new file mode 100644
index 000000000..9c15f42f0
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_static_const.cpp
@@ -0,0 +1,44 @@
+//
+// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/static_const.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+#include <boost/beast/core/close_socket.hpp>
+
+namespace boost {
+namespace beast {
+
+struct foo_impl
+{
+    void operator()() const noexcept
+    {
+        BEAST_PASS();
+    }
+};
+
+constexpr auto& bar =
+    boost::beast::detail::static_const<detail::close_socket_impl>::value;
+
+class static_const_test : public beast::unit_test::suite
+{
+public:
+    void
+    run() override
+    {
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,static_const);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_tuple.cpp b/src/boost/libs/beast/test/beast/core/_detail_tuple.cpp
new file mode 100644
index 000000000..5620e3434
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_tuple.cpp
@@ -0,0 +1,54 @@
+//
+// Copyright (c) 2016-2019Damian Jarek (damian dot jarek93 at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/tuple.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class tuple_test : public beast::unit_test::suite
+{
+public:
+    void
+    run()
+    {
+        struct explicit_constructible
+        {
+            explicit_constructible(std::nullptr_t)
+                : i_(0)
+            {
+            }
+
+            explicit explicit_constructible(int i)
+                : i_(i)
+            {
+            }
+
+            int i_;
+        };
+
+        tuple<explicit_constructible, int> t{nullptr, 42};
+        BEAST_EXPECT(detail::get<1>(t) == 42);
+        BEAST_EXPECT(detail::get<0>(t).i_ == 0);
+
+        t = tuple<explicit_constructible, int>{explicit_constructible(42), 43};
+        BEAST_EXPECT(detail::get<1>(t) == 43);
+        BEAST_EXPECT(detail::get<0>(t).i_ == 42);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,tuple);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_variant.cpp b/src/boost/libs/beast/test/beast/core/_detail_variant.cpp
new file mode 100644
index 000000000..253f5e32b
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_variant.cpp
@@ -0,0 +1,453 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/variant.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <exception>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class variant_test : public beast::unit_test::suite
+{
+public:
+    template<unsigned char I>
+    struct Q
+    {
+        static
+        unsigned char&
+        count()
+        {
+            static unsigned char n = 0;
+            return n;
+        }
+
+        int value = 0;
+        bool move = false;
+        bool copy = false;
+
+        Q& operator=(Q&& q) = delete;
+        Q& operator=(Q const& q) = delete;
+
+        ~Q()
+        { 
+            --count();
+        }
+
+        Q()
+        {
+            ++count();
+        }
+                
+        Q(Q&& q)
+        {
+            if(q.value < 0)
+                throw std::exception{};
+            ++count();
+            move = true;
+        }
+
+        Q(Q const& q)
+        {
+            if(q.value < 0)
+                throw std::exception{};
+            ++count();
+            copy = true;
+        }
+
+        explicit Q(int value_)
+            : value(value_)
+        {
+            ++count();
+        }
+    };
+
+    void
+    testVariant()
+    {
+        // Default Constructor
+        // Destructor
+        {
+            variant<int> v;
+            BEAST_EXPECT(v.index() == 0);
+        }
+        // emplace
+        {
+            variant<int> v;
+            BEAST_EXPECT(v.index() == 0);
+            v.emplace<1>(10);
+            BEAST_EXPECT(v.index() == 1);
+            BEAST_EXPECT(v.get<1>() == 10);
+            v.emplace<1>(20);
+            BEAST_EXPECT(v.index() == 1);
+            BEAST_EXPECT(v.get<1>() == 20);
+        }
+        {
+            variant<std::string> v;
+            v.emplace<1>("Hello, world!");
+            BEAST_EXPECT(v.index() == 1);
+            BEAST_EXPECT(v.get<1>() == "Hello, world!");
+        }
+        {
+            variant<Q<1>> v;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            v.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(v.get<1>().value == 0);
+            v.emplace<1>(42);
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(v.get<1>().value == 42);
+            v.reset();
+            BEAST_EXPECT(Q<1>::count() == 0);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        {
+            variant<Q<1>, Q<2>, Q<3>> v;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v.emplace<3>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 1);
+            v.reset();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        BEAST_EXPECT(Q<3>::count() == 0);
+        // move
+        {
+            variant<std::string> v1;
+            BEAST_EXPECT(v1.index() == 0);
+            variant<std::string> v2{std::move(v1)};
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 0);
+            v2.emplace<1>("Hello");
+            BEAST_EXPECT(v2.get<1>() == "Hello");
+            variant<std::string> v3{std::move(v2)};
+            BEAST_EXPECT(v2.index() == 0);
+            BEAST_EXPECT(v3.get<1>() == "Hello");
+        }
+        {
+            variant<Q<1>> v1;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            v1.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(! v1.get<1>().move);
+            variant<Q<1>> v2{std::move(v1)};
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(v2.get<1>().move);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        {
+            variant<Q<1>, Q<2>, Q<3>> v1;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v1.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            variant<Q<1>, Q<2>, Q<3>> v2{std::move(v1)};
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            BEAST_EXPECT(v2.get<2>().move);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        BEAST_EXPECT(Q<3>::count() == 0);
+        // copy
+        {
+            variant<std::string> v1;
+            BEAST_EXPECT(v1.index() == 0);
+            variant<std::string> v2{v1};
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 0);
+            v2.emplace<1>("Hello");
+            BEAST_EXPECT(v2.get<1>() == "Hello");
+            variant<std::string> v3{v2};
+            BEAST_EXPECT(v2.get<1>() == "Hello");
+            BEAST_EXPECT(v3.get<1>() == "Hello");
+        }
+        {
+            variant<Q<1>> v1;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            v1.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(! v1.get<1>().copy);
+            variant<Q<1>> v2{v1};
+            BEAST_EXPECT(v1.index() == 1);
+            BEAST_EXPECT(Q<1>::count() == 2);
+            BEAST_EXPECT(v2.get<1>().copy);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        {
+            variant<Q<1>, Q<2>, Q<3>> v1;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v1.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            variant<Q<1>, Q<2>, Q<3>> v2{v1};
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 2);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            BEAST_EXPECT(v2.get<2>().copy);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        BEAST_EXPECT(Q<3>::count() == 0);
+        // move assign
+        {
+            variant<std::string> v1;
+            BEAST_EXPECT(v1.index() == 0);
+            variant<std::string> v2;
+            v2 = std::move(v1);
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 0);
+            v2.emplace<1>("Hello");
+            BEAST_EXPECT(v2.get<1>() == "Hello");
+            variant<std::string> v3;
+            v3 = std::move(v2);
+            BEAST_EXPECT(v2.index() == 0);
+            BEAST_EXPECT(v3.get<1>() == "Hello");
+        }
+        {
+            variant<Q<1>, Q<2>> v1;
+            variant<Q<1>, Q<2>> v2;
+            v1.emplace<1>();
+            BEAST_EXPECT(v1.index() == 1);
+            BEAST_EXPECT(Q<1>::count() == 1);
+            v2.emplace<2>();
+            BEAST_EXPECT(v2.index() == 2);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            v2 = std::move(v1);
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 1);
+            BEAST_EXPECT(Q<1>::count() == 1);
+            BEAST_EXPECT(Q<2>::count() == 0);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        {
+            variant<Q<1>> v1;
+            v1.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            variant<Q<1>> v2;
+            v2.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 2);
+            v2 = std::move(v1);
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 1);
+            BEAST_EXPECT(v2.get<1>().move);
+            BEAST_EXPECT(Q<1>::count() == 1);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        {
+            variant<Q<1>, Q<2>, Q<3>> v1;
+            v1.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            variant<Q<1>, Q<2>, Q<3>> v2;
+            v2.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 2);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v2 = std::move(v1);
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 2);
+            BEAST_EXPECT(v2.get<2>().move);
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        BEAST_EXPECT(Q<3>::count() == 0);
+        // copy assign
+        {
+            variant<std::string> v1;
+            BEAST_EXPECT(v1.index() == 0);
+            variant<std::string> v2;
+            v2 = v1;
+            BEAST_EXPECT(v1.index() == 0);
+            BEAST_EXPECT(v2.index() == 0);
+            v2.emplace<1>("Hello");
+            BEAST_EXPECT(v2.get<1>() == "Hello");
+            variant<std::string> v3;
+            v3 = v2;
+            BEAST_EXPECT(v2.get<1>() == "Hello");
+            BEAST_EXPECT(v3.get<1>() == "Hello");
+        }
+        {
+            variant<Q<1>, Q<2>> v1;
+            variant<Q<1>, Q<2>> v2;
+            v1.emplace<1>();
+            BEAST_EXPECT(v1.index() == 1);
+            BEAST_EXPECT(Q<1>::count() == 1);
+            v2.emplace<2>();
+            BEAST_EXPECT(v2.index() == 2);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            v2 = v1;
+            BEAST_EXPECT(v1.index() == 1);
+            BEAST_EXPECT(v2.index() == 1);
+            BEAST_EXPECT(Q<1>::count() == 2);
+            BEAST_EXPECT(Q<2>::count() == 0);
+        }
+        {
+            variant<Q<1>> v1;
+            v1.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            variant<Q<1>> v2;
+            v2.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 2);
+            v2 = v1;
+            BEAST_EXPECT(v1.index() == 1);
+            BEAST_EXPECT(v2.index() == 1);
+            BEAST_EXPECT(v2.get<1>().copy);
+            BEAST_EXPECT(Q<1>::count() == 2);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        {
+            variant<Q<1>, Q<2>, Q<3>> v1;
+            v1.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            variant<Q<1>, Q<2>, Q<3>> v2;
+            v2.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 2);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v2 = v1;
+            BEAST_EXPECT(v1.index() == 2);
+            BEAST_EXPECT(v2.index() == 2);
+            BEAST_EXPECT(v2.get<2>().copy);
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 2);
+            BEAST_EXPECT(Q<3>::count() == 0);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        BEAST_EXPECT(Q<3>::count() == 0);
+        // get
+        {
+            variant<std::string> v;
+            v.emplace<1>("Hello");
+            v.get<1>() = "World!";
+            BEAST_EXPECT(v.get<1>() == "World!");
+        }
+        // reset
+        {
+            variant<std::string> v;
+            v.emplace<1>("Hello");
+            v.reset();
+            BEAST_EXPECT(v.index() == 0);
+        }
+        {
+            variant<Q<1>> v;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            v.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            v.reset();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(v.index() == 0);
+        }
+        {
+            variant<Q<1>, Q<2>, Q<3>> v;
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v.emplace<2>();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 1);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            v.reset();
+            BEAST_EXPECT(Q<1>::count() == 0);
+            BEAST_EXPECT(Q<2>::count() == 0);
+            BEAST_EXPECT(Q<3>::count() == 0);
+            BEAST_EXPECT(v.index() == 0);
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        BEAST_EXPECT(Q<2>::count() == 0);
+        BEAST_EXPECT(Q<3>::count() == 0);
+        
+        // basic guarantee
+        {
+            // move
+            variant<Q<1>> v1;
+            v1.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            variant<Q<1>> v2;
+            v2.emplace<1>(-1);
+            BEAST_EXPECT(Q<1>::count() == 2);
+            try
+            {
+                v1 = std::move(v2);
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                BEAST_EXPECT(v1.index() == 0);
+                BEAST_EXPECT(Q<1>::count() == 1);
+            }
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+        {
+            // copy
+            variant<Q<1>> v1;
+            v1.emplace<1>();
+            BEAST_EXPECT(Q<1>::count() == 1);
+            variant<Q<1>> v2;
+            v2.emplace<1>(-1);
+            BEAST_EXPECT(Q<1>::count() == 2);
+            try
+            {
+                v1 = v2;
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                BEAST_EXPECT(v1.index() == 0);
+                BEAST_EXPECT(Q<1>::count() == 1);
+            }
+        }
+        BEAST_EXPECT(Q<1>::count() == 0);
+    }
+
+    void
+    run()
+    {
+        testVariant();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,variant);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/_detail_varint.cpp b/src/boost/libs/beast/test/beast/core/_detail_varint.cpp
new file mode 100644
index 000000000..a760aea1e
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/_detail_varint.cpp
@@ -0,0 +1,53 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detail/varint.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace detail {
+
+class varint_test : public beast::unit_test::suite
+{
+public:
+    void
+    testVarint()
+    {
+        std::size_t n0 = 0;
+        std::size_t n1 = 1;
+        for(;;)
+        {
+            char buf[16];
+            BOOST_ASSERT(sizeof(buf) >= varint_size(n0));
+            auto it = &buf[0];
+            varint_write(it, n0);
+            it = &buf[0];
+            auto n = varint_read(it);
+            BEAST_EXPECT(n == n0);
+            n = n0 + n1;
+            if(n < n1)
+                break;
+            n0 = n1;
+            n1 = n;
+        }
+    }
+
+    void
+    run()
+    {
+        testVarint();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,varint);
+
+} // detail
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/async_base.cpp b/src/boost/libs/beast/test/beast/core/async_base.cpp
new file mode 100644
index 000000000..303cbc754
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/async_base.cpp
@@ -0,0 +1,762 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/async_base.hpp>
+
+#include "test_handler.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/handler.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/core/error.hpp>
+#include <boost/asio/async_result.hpp>
+#include <boost/asio/coroutine.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/steady_timer.hpp>
+#include <boost/asio/system_executor.hpp>
+#include <boost/asio/write.hpp>
+#include <boost/core/ignore_unused.hpp>
+#include <stdexcept>
+
+//------------------------------------------------------------------------------
+
+namespace boost {
+namespace beast {
+
+namespace {
+
+struct ex1_type
+{
+    void* context() { return nullptr; }
+    void on_work_started() {}
+    void on_work_finished() {}
+    template<class F> void dispatch(F&&) {}
+    template<class F> void post(F&&) {}
+    template<class F> void defer(F&&) {}
+};
+
+struct no_alloc
+{
+};
+
+struct nested_alloc
+{
+    struct allocator_type
+    {
+    };
+};
+
+struct intrusive_alloc
+{
+    struct allocator_type
+    {
+    };
+};
+
+struct no_ex
+{
+    using executor_type = net::system_executor;
+};
+
+struct nested_ex
+{
+    struct executor_type
+    {
+    };
+};
+
+struct intrusive_ex
+{
+    struct executor_type
+    {
+    };
+};
+
+template<class E, class A>
+struct handler;
+
+template<>
+struct handler<no_ex, no_alloc>
+{
+};
+
+template<>
+struct handler<no_ex, nested_alloc>
+    : nested_alloc
+{
+};
+
+template<>
+struct handler<no_ex, intrusive_alloc>
+{
+};
+
+template<>
+struct handler<nested_ex, no_alloc>
+    : nested_ex
+{
+};
+
+template<>
+struct handler<intrusive_ex, no_alloc>
+{
+};
+
+} // (anon)
+
+} // beast
+} // boost
+
+namespace boost {
+namespace asio {
+
+template<class Allocator>
+struct associated_allocator<
+    boost::beast::handler<
+        boost::beast::no_ex,
+        boost::beast::intrusive_alloc>,
+            Allocator>
+{
+    using type =
+        boost::beast::intrusive_alloc::allocator_type;
+
+    static type get(
+        boost::beast::handler<
+            boost::beast::no_ex,
+            boost::beast::intrusive_alloc> const&,
+        Allocator const& = Allocator()) noexcept
+    {
+        return type{};
+    }
+};
+
+template<class Executor>
+struct associated_executor<
+    boost::beast::handler<
+        boost::beast::intrusive_ex,
+        boost::beast::no_alloc>,
+            Executor>
+{
+    using type =
+        boost::beast::intrusive_ex::executor_type;
+
+    static type get(
+        boost::beast::handler<
+            boost::beast::intrusive_ex,
+            boost::beast::no_alloc> const&,
+        Executor const& = Executor()) noexcept
+    {
+        return type{};
+    }
+};
+
+} // asio
+} // boost
+
+//------------------------------------------------------------------------------
+
+namespace boost {
+namespace beast {
+
+class async_base_test : public beast::unit_test::suite
+{
+public:
+    // no associated allocator
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            std::allocator<void>,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, no_alloc>,
+                    net::io_context::executor_type>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            std::allocator<int>,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, no_alloc>,
+                    net::io_context::executor_type,
+                    std::allocator<int>>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            std::allocator<void>,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, no_alloc>,
+                    net::io_context::executor_type>,
+                std::allocator<int> // ignored
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            std::allocator<int>,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, no_alloc>,
+                    net::io_context::executor_type,
+                    std::allocator<int>>,
+                std::allocator<double> // ignored
+        >>::value);
+
+    // nested associated allocator
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            nested_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, nested_alloc>,
+                    net::io_context::executor_type>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            nested_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, nested_alloc>,
+                    net::io_context::executor_type,
+                    std::allocator<int>> // ignored
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            nested_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, nested_alloc>,
+                    net::io_context::executor_type>,
+                std::allocator<int> // ignored
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            nested_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, nested_alloc>,
+                    net::io_context::executor_type,
+                    std::allocator<int>>, // ignored
+                std::allocator<int> // ignored
+        >>::value);
+
+    // intrusive associated allocator
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            intrusive_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, intrusive_alloc>,
+                    net::io_context::executor_type>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            intrusive_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, intrusive_alloc>,
+                    net::io_context::executor_type,
+                    std::allocator<int>> // ignored
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            intrusive_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, intrusive_alloc>,
+                    net::io_context::executor_type>,
+                std::allocator<int> // ignored
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            intrusive_alloc::allocator_type,
+            net::associated_allocator_t<
+                async_base<
+                    handler<no_ex, intrusive_alloc>,
+                    net::io_context::executor_type,
+                    std::allocator<int>>, // ignored
+                std::allocator<int> // ignored
+        >>::value);
+
+    // no associated executor
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            ex1_type,
+            net::associated_executor_t<
+                async_base<
+                    handler<no_ex, no_alloc>,
+                    ex1_type>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            ex1_type,
+            net::associated_executor_t<
+                async_base<
+                    handler<no_ex, no_alloc>,
+                    ex1_type>,
+                net::system_executor // ignored
+        >>::value);
+
+    // nested associated executor
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            nested_ex::executor_type,
+            net::associated_executor_t<
+                async_base<
+                    handler<nested_ex, no_alloc>,
+                    ex1_type>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            nested_ex::executor_type,
+            net::associated_executor_t<
+                async_base<
+                    handler<nested_ex, no_alloc>,
+                    ex1_type>,
+                net::system_executor // ignored
+        >>::value);
+
+    // intrusive associated executor
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            intrusive_ex::executor_type,
+            net::associated_executor_t<
+                async_base<
+                    handler<intrusive_ex, no_alloc>,
+                    ex1_type>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<
+            intrusive_ex::executor_type,
+            net::associated_executor_t<
+                async_base<
+                    handler<intrusive_ex, no_alloc>,
+                    ex1_type>,
+                net::system_executor // ignored
+        >>::value);
+
+    struct final_handler
+    {
+        bool& invoked;
+
+        void
+        operator()()
+        {
+            invoked = true;
+        }
+    };
+
+    void
+    testBase()
+    {
+        // get_allocator
+        {
+            simple_allocator alloc;
+            simple_allocator alloc2;
+            async_base<
+                move_only_handler,
+                simple_executor,
+                simple_allocator> op(
+                    move_only_handler{}, {}, alloc);
+            BEAST_EXPECT(op.get_allocator() == alloc);
+            BEAST_EXPECT(op.get_allocator() != alloc2);
+        }
+
+        // get_executor
+        {
+            simple_executor ex;
+            simple_executor ex2;
+            async_base<
+                move_only_handler,
+                simple_executor> op(
+                    move_only_handler{}, ex);
+            BEAST_EXPECT(op.get_executor() == ex);
+            BEAST_EXPECT(op.get_executor() != ex2);
+        }
+
+        // move construction
+        {
+            async_base<
+                move_only_handler,
+                simple_executor> op(
+                    move_only_handler{}, {});
+            auto op2 = std::move(op);
+        }
+
+        // observers
+        {
+            bool b = false;
+            async_base<
+                legacy_handler,
+                simple_executor> op(
+                    legacy_handler{b}, {});
+            BEAST_EXPECT(! op.handler().hook_invoked);
+            b = true;
+            BEAST_EXPECT(op.handler().hook_invoked);
+            b = false;
+            BEAST_EXPECT(! op.release_handler().hook_invoked);
+        }
+
+        // invocation
+        {
+            net::io_context ioc;
+            async_base<
+                test::handler,
+                net::io_context::executor_type> op(
+                    test::any_handler(), ioc.get_executor());
+            op.complete(true);
+        }
+        {
+            net::io_context ioc;
+            async_base<
+                test::handler,
+                net::io_context::executor_type> op(
+                    test::any_handler(), ioc.get_executor());
+            op.complete(false);
+            ioc.run();
+        }
+        {
+            async_base<
+                test::handler,
+                simple_executor> op(
+                    test::any_handler(), {});
+            op.complete_now();
+        }
+
+        // legacy hooks
+        legacy_handler::test(
+            [](legacy_handler h)
+            {
+                return async_base<
+                    legacy_handler,
+                    simple_executor>(
+                        std::move(h), {});
+            });
+    }
+
+    void
+    testStableBase()
+    {
+        // get_allocator
+        {
+            simple_allocator alloc;
+            simple_allocator alloc2;
+            stable_async_base<
+                move_only_handler,
+                simple_executor,
+                simple_allocator> op(
+                    move_only_handler{}, {}, alloc);
+            BEAST_EXPECT(op.get_allocator() == alloc);
+            BEAST_EXPECT(op.get_allocator() != alloc2);
+        }
+
+        // get_executor
+        {
+            simple_executor ex;
+            simple_executor ex2;
+            stable_async_base<
+                move_only_handler,
+                simple_executor> op(
+                    move_only_handler{}, ex);
+            BEAST_EXPECT(op.get_executor() == ex);
+            BEAST_EXPECT(op.get_executor() != ex2);
+        }
+
+        // move construction
+        {
+            stable_async_base<
+                move_only_handler,
+                simple_executor> op(
+                    move_only_handler{}, {});
+            auto op2 = std::move(op);
+        }
+
+        // invocation
+        {
+            net::io_context ioc;
+            stable_async_base<
+                test::handler,
+                net::io_context::executor_type> op(
+                    test::any_handler(), ioc.get_executor());
+            op.complete(true);
+        }
+        {
+            net::io_context ioc1;
+            net::io_context ioc2;
+            auto h = net::bind_executor(ioc2, test::any_handler());
+            stable_async_base<
+                decltype(h),
+                net::io_context::executor_type> op(
+                    std::move(h),
+                    ioc1.get_executor());
+            op.complete(false);
+            BEAST_EXPECT(ioc1.run() == 0);
+            BEAST_EXPECT(ioc2.run() == 1);
+        }
+        {
+            stable_async_base<
+                test::handler,
+                simple_executor> op(
+                    test::any_handler(), {});
+            op.complete_now();
+        }
+
+        // legacy hooks
+        legacy_handler::test(
+            [](legacy_handler h)
+            {
+                return stable_async_base<
+                    legacy_handler,
+                    simple_executor>(
+                        std::move(h), {});
+            });
+
+        // allocate_stable
+
+        {
+            bool destroyed = false;
+            {
+                struct data
+                {
+                    bool& destroyed;
+
+                    ~data()
+                    {
+                        destroyed = true;
+                    }
+                };
+                stable_async_base<
+                    move_only_handler,
+                    simple_executor> op(
+                        move_only_handler{}, {});
+                BEAST_EXPECT(! destroyed);
+                auto& d = allocate_stable<data>(op, destroyed);
+                BEAST_EXPECT(! d.destroyed);
+            }
+            BEAST_EXPECT(destroyed);
+        }
+        {
+            struct throwing_data
+            {
+                throwing_data()
+                {
+                    BOOST_THROW_EXCEPTION(
+                        std::exception{});
+                }
+            };
+            stable_async_base<
+                move_only_handler,
+                simple_executor> op(
+                    move_only_handler{}, {});
+            try
+            {
+                allocate_stable<throwing_data>(op);
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    // Asynchronously read into a buffer until the buffer is full, or an error occurs
+    template<class AsyncReadStream, class ReadHandler>
+    typename net::async_result<ReadHandler, void(error_code, std::size_t)>::return_type
+    async_read(AsyncReadStream& stream, net::mutable_buffer buffer, ReadHandler&& handler)
+    {
+        using handler_type = BOOST_ASIO_HANDLER_TYPE(ReadHandler, void(error_code, std::size_t));
+        using base_type = async_base<handler_type, typename AsyncReadStream::executor_type>;
+
+        struct op : base_type
+        {
+            AsyncReadStream& stream_;
+            net::mutable_buffer buffer_;
+            std::size_t total_bytes_transferred_;
+
+            op(
+                AsyncReadStream& stream,
+                net::mutable_buffer buffer,
+                handler_type& handler)
+                : base_type(std::move(handler), stream.get_executor())
+                , stream_(stream)
+                , buffer_(buffer)
+                , total_bytes_transferred_(0)
+            {
+                (*this)({}, 0, false); // start the operation
+            }
+
+            void operator()(error_code ec, std::size_t bytes_transferred, bool is_continuation = true)
+            {
+                // Adjust the count of bytes and advance our buffer
+                total_bytes_transferred_ += bytes_transferred;
+                buffer_ = buffer_ + bytes_transferred;
+
+                // Keep reading until buffer is full or an error occurs
+                if(! ec && buffer_.size() > 0)
+                    return stream_.async_read_some(buffer_, std::move(*this));
+
+                // Call the completion handler with the result. If `is_continuation` is
+                // false, which happens on the first time through this function, then
+                // `net::post` will be used to call the completion handler, otherwise
+                // the completion handler will be invoked directly.
+
+                this->complete(is_continuation, ec, total_bytes_transferred_);
+            }
+        };
+
+        net::async_completion<ReadHandler, void(error_code, std::size_t)> init{handler};
+        op(stream, buffer, init.completion_handler);
+        return init.result.get();
+    }
+
+    // Asynchronously send a message multiple times, once per second
+    template <class AsyncWriteStream, class T, class WriteHandler>
+    auto async_write_messages(
+        AsyncWriteStream& stream,
+        T const& message,
+        std::size_t repeat_count,
+        WriteHandler&& handler) ->
+            typename net::async_result<
+                typename std::decay<WriteHandler>::type,
+                void(error_code)>::return_type
+    {
+        using handler_type = typename net::async_completion<WriteHandler, void(error_code)>::completion_handler_type;
+        using base_type = stable_async_base<handler_type, typename AsyncWriteStream::executor_type>;
+
+        struct op : base_type, boost::asio::coroutine
+        {
+            // This object must have a stable address
+            struct temporary_data
+            {
+                // Although std::string is in theory movable, most implementations
+                // use a "small buffer optimization" which means that we might
+                // be submitting a buffer to the write operation and then
+                // moving the string, invalidating the buffer. To prevent
+                // undefined behavior we store the string object itself at
+                // a stable location.
+                std::string const message;
+
+                net::steady_timer timer;
+
+                temporary_data(std::string message_, net::io_context& ctx)
+                    : message(std::move(message_))
+                    , timer(ctx)
+                {
+                }
+            };
+
+            AsyncWriteStream& stream_;
+            std::size_t repeats_;
+            temporary_data& data_;
+
+            op(AsyncWriteStream& stream, std::size_t repeats, std::string message, handler_type& handler)
+                : base_type(std::move(handler), stream.get_executor())
+                , stream_(stream)
+                , repeats_(repeats)
+                , data_(allocate_stable<temporary_data>(*this, std::move(message), stream.get_executor().context()))
+            {
+                (*this)(); // start the operation
+            }
+
+            // Including this file provides the keywords for macro-based coroutines
+            #include <boost/asio/yield.hpp>
+
+            void operator()(error_code ec = {}, std::size_t = 0)
+            {
+                reenter(*this)
+                {
+                    // If repeats starts at 0 then we must complete immediately. But
+                    // we can't call the final handler from inside the initiating
+                    // function, so we post our intermediate handler first. We use
+                    // net::async_write with an empty buffer instead of calling
+                    // net::post to avoid an extra function template instantiation, to
+                    // keep compile times lower and make the resulting executable smaller.
+                    yield net::async_write(stream_, net::const_buffer{}, std::move(*this));
+                    while(! ec && repeats_-- > 0)
+                    {
+                        // Send the string. We construct a `const_buffer` here to guarantee
+                        // that we do not create an additional function template instantation
+                        // of net::async_write, since we already instantiated it above for
+                        // net::const_buffer.
+
+                        yield net::async_write(stream_,
+                            net::const_buffer(net::buffer(data_.message)), std::move(*this));
+                        if(ec)
+                            break;
+
+                        // Set the timer and wait
+                        data_.timer.expires_after(std::chrono::seconds(1));
+                        yield data_.timer.async_wait(std::move(*this));
+                    }
+                }
+
+                // The base class destroys the temporary data automatically,
+                // before invoking the final completion handler
+                this->complete_now(ec);
+            }
+
+            // Including this file undefines the macros for the coroutines
+            #include <boost/asio/unyield.hpp>
+        };
+
+        net::async_completion<WriteHandler, void(error_code)> completion(handler);
+        std::ostringstream os;
+        os << message;
+        op(stream, repeat_count, os.str(), completion.completion_handler);
+        return completion.result.get();
+    }
+
+    void
+    testJavadocs()
+    {
+        struct handler
+        {
+            void operator()(error_code = {}, std::size_t = 0)
+            {
+            }
+        };
+
+        BEAST_EXPECT((&async_base_test::async_read<test::stream, handler>));
+        BEAST_EXPECT((&async_base_test::async_write_messages<test::stream, std::string, handler>));
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    run() override
+    {
+        testBase();
+        testStableBase();
+        testJavadocs();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,async_base);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/basic_stream.cpp b/src/boost/libs/beast/test/beast/core/basic_stream.cpp
new file mode 100644
index 000000000..4b64c79ba
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/basic_stream.cpp
@@ -0,0 +1,1316 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/basic_stream.hpp>
+
+#include "stream_tests.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/stream_traits.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/core/tcp_stream.hpp>
+#include <boost/beast/http/message.hpp>
+#include <boost/beast/http/empty_body.hpp>
+#include <boost/beast/http/read.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/http/write.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/write.hpp>
+#include <boost/optional.hpp>
+#include <array>
+#include <thread>
+
+namespace boost {
+namespace beast {
+
+#if 0
+template class basic_stream<
+    net::ip::tcp,
+    net::executor,
+    unlimited_rate_policy>;
+
+template class basic_stream<
+    net::ip::tcp,
+    net::executor,
+    simple_rate_policy>;
+#endif
+
+namespace {
+
+template<class Executor = net::io_context::executor_type>
+class test_executor
+{
+public:
+    // VFALCO These need to be atomic or something
+    struct info
+    {
+        int dispatch = 0;
+        int post = 0;
+        int defer = 0;
+        int work = 0;
+        int total = 0;
+    };
+
+private:
+    struct state
+    {
+        Executor ex;
+        info info_;
+
+        state(Executor const& ex_)
+            : ex(ex_)
+        {
+        }
+    };
+
+    std::shared_ptr<state> sp_;
+
+public:
+    test_executor(test_executor const&) = default;
+    test_executor& operator=(test_executor const&) = default;
+
+    explicit
+    test_executor(Executor const& ex)
+        : sp_(std::make_shared<state>(ex))
+    {
+    }
+
+    decltype(sp_->ex.context())
+    context() const noexcept
+    {
+        return sp_->ex.context();
+    }
+
+    info&
+    operator*() noexcept
+    {
+        return sp_->info_;
+    }
+
+    info*
+    operator->() noexcept
+    {
+        return &sp_->info_;
+    }
+
+    void
+    on_work_started() const noexcept
+    {
+        ++sp_->info_.work;
+    }
+
+    void
+    on_work_finished() const noexcept
+    {
+    }
+
+    template<class F, class A>
+    void
+    dispatch(F&& f, A const& a)
+    {
+        ++sp_->info_.dispatch;
+        ++sp_->info_.total;
+        sp_->ex.dispatch(
+            std::forward<F>(f), a);
+    }
+
+    template<class F, class A>
+    void
+    post(F&& f, A const& a)
+    {
+        ++sp_->info_.post;
+        ++sp_->info_.total;
+        sp_->ex.post(
+            std::forward<F>(f), a);
+    }
+
+    template<class F, class A>
+    void
+    defer(F&& f, A const& a)
+    {
+        ++sp_->info_.defer;
+        ++sp_->info_.total;
+        sp_->ex.defer(
+            std::forward<F>(f), a);
+    }
+};
+
+struct test_acceptor
+{
+    net::io_context ioc;
+    net::ip::tcp::acceptor a;
+    net::ip::tcp::endpoint ep;
+
+    test_acceptor()
+        : a(ioc)
+        , ep(net::ip::make_address_v4("127.0.0.1"), 0)
+    {
+        a.open(ep.protocol());
+        a.set_option(
+            net::socket_base::reuse_address(true));
+        a.bind(ep);
+        a.listen(net::socket_base::max_listen_connections);
+        ep = a.local_endpoint();
+        a.async_accept(
+            [](error_code, net::ip::tcp::socket)
+            {
+            });
+    }
+};
+
+class test_server
+{
+    string_view s_;
+    std::ostream& log_;
+    net::io_context ioc_;
+    net::ip::tcp::acceptor acceptor_;
+    net::ip::tcp::socket socket_;
+    std::thread t_;
+
+    void
+    fail(error_code const& ec, string_view what)
+    {
+        if(ec != net::error::operation_aborted)
+            log_ << what << ": " << ec.message() << "\n";
+    }
+
+public:
+    test_server(
+        string_view s,
+        net::ip::tcp::endpoint ep,
+        std::ostream& log)
+        : s_(s)
+        , log_(log)
+        , ioc_(1)
+        , acceptor_(ioc_)
+        , socket_(ioc_)
+    {
+        boost::system::error_code ec;
+
+        acceptor_.open(ep.protocol(), ec);
+        if(ec)
+        {
+            fail(ec, "open");
+            return;
+        }
+
+        acceptor_.set_option(
+            net::socket_base::reuse_address(true), ec);
+        if(ec)
+        {
+            fail(ec, "set_option");
+            return;
+        }
+
+        acceptor_.bind(ep, ec);
+        if(ec)
+        {
+            fail(ec, "bind");
+            return;
+        }
+
+        acceptor_.listen(
+            net::socket_base::max_listen_connections, ec);
+        if(ec)
+        {
+            fail(ec, "listen");
+            return;
+        }
+
+        acceptor_.async_accept(socket_,
+            [this](error_code ec)
+            {
+                this->on_accept(ec);
+            });
+
+        t_ = std::thread(
+            [this]
+            {
+                ioc_.run();
+            });
+    }
+
+    ~test_server()
+    {
+        ioc_.stop();
+        t_.join();
+    }
+
+    net::ip::tcp::endpoint
+    local_endpoint() const noexcept
+    {
+        return acceptor_.local_endpoint();
+    }
+
+private:
+    class session
+        : public std::enable_shared_from_this<session>
+    {
+        string_view s_;
+        net::ip::tcp::socket socket_;
+        
+    public:
+        session(
+            string_view s,
+            net::ip::tcp::socket sock,
+            std::ostream&)
+            : s_(s)
+            , socket_(std::move(sock))
+        {
+        }
+
+        void
+        run()
+        {
+            if(s_.empty())
+                socket_.async_wait(
+                    net::socket_base::wait_read,
+                    bind_front_handler(
+                        &session::on_read,
+                        shared_from_this()));
+            else
+                net::async_write(
+                    socket_,
+                    net::const_buffer(s_.data(), s_.size()),
+                    bind_front_handler(
+                        &session::on_write,
+                        shared_from_this()));
+        }
+
+    protected:
+        void
+        on_read(error_code const&)
+        {
+        }
+
+        void
+        on_write(error_code const&, std::size_t)
+        {
+        }
+    };
+
+    void
+    on_accept(error_code const& ec)
+    {
+        if(! acceptor_.is_open())
+            return;
+        if(ec)
+            fail(ec, "accept");
+        else
+            std::make_shared<session>(
+                s_, std::move(socket_), log_)->run();
+        acceptor_.async_accept(socket_,
+            [this](error_code ec)
+            {
+                this->on_accept(ec);
+            });
+    }
+};
+
+} // (anon)
+
+class basic_stream_test
+    : public beast::unit_test::suite
+{
+public:
+    using tcp = net::ip::tcp;
+    using strand = net::io_context::strand;
+    using executor = net::io_context::executor_type;
+
+    //--------------------------------------------------------------------------
+
+    void
+    testSpecialMembers()
+    {
+        net::io_context ioc;
+
+        // net::io_context::executor_type
+
+        {
+            auto ex = ioc.get_executor();
+            basic_stream<tcp, executor> s1(ioc);
+            basic_stream<tcp, executor> s2(ex);
+            basic_stream<tcp, executor> s3(ioc, tcp::v4());
+            basic_stream<tcp, executor> s4(std::move(s1));
+            s2.socket() =
+                net::basic_stream_socket<tcp, executor>(ioc);
+            BEAST_EXPECT(s1.get_executor() == ex);
+            BEAST_EXPECT(s2.get_executor() == ex);
+            BEAST_EXPECT(s3.get_executor() == ex);
+            BEAST_EXPECT(s4.get_executor() == ex);
+
+            BEAST_EXPECT((! static_cast<
+                basic_stream<tcp, executor> const&>(
+                    s2).socket().is_open()));
+
+            test_sync_stream<
+                basic_stream<
+                    tcp, net::io_context::executor_type>>();
+
+            test_async_stream<
+                basic_stream<
+                    tcp, net::io_context::executor_type>>();
+        }
+
+        // net::io_context::strand
+
+        {
+            auto ex = strand{ioc};
+            basic_stream<tcp, strand> s1(ex);
+            basic_stream<tcp, strand> s2(ex, tcp::v4());
+            basic_stream<tcp, strand> s3(std::move(s1));
+        #if 0
+            s2.socket() = net::basic_stream_socket<
+                tcp, strand>(ioc);
+        #endif
+            BEAST_EXPECT(s1.get_executor() == ex);
+            BEAST_EXPECT(s2.get_executor() == ex);
+            BEAST_EXPECT(s3.get_executor() == ex);
+
+#if 0
+            BEAST_EXPECT((! static_cast<
+                basic_stream<tcp, strand> const&>(
+                    s2).socket().is_open()));
+#endif
+
+            test_sync_stream<
+                basic_stream<
+                    tcp, net::io_context::strand>>();
+
+            test_async_stream<
+                basic_stream<
+                    tcp, net::io_context::strand>>();
+        }
+
+        // construction from existing socket
+
+#if 0
+        {
+            tcp::socket sock(ioc);
+            basic_stream<tcp, executor> stream(std::move(sock));
+        }
+
+        {
+            tcp::socket sock(ioc);
+            basic_stream<tcp, strand> stream(std::move(sock));
+        }
+#endif
+
+        // layers
+
+        {
+            net::socket_base::keep_alive opt;
+            tcp_stream s(ioc);
+            s.socket().open(tcp::v4());
+            s.socket().get_option(opt);
+            BEAST_EXPECT(! opt.value());
+            opt = true;
+            s.socket().set_option(opt);
+            opt = false;
+            BEAST_EXPECT(! opt.value());
+        }
+
+        // rate policies
+
+        {
+            basic_stream<tcp,
+                net::io_context::executor_type,
+                simple_rate_policy> s(ioc);
+        }
+
+        {
+            basic_stream<tcp,
+                net::io_context::executor_type,
+                simple_rate_policy> s(
+                    simple_rate_policy{}, ioc);
+        }
+
+        {
+            basic_stream<tcp,
+                net::io_context::executor_type,
+                unlimited_rate_policy> s(ioc);
+        }
+
+        {
+            basic_stream<tcp,
+                net::io_context::executor_type,
+                unlimited_rate_policy> s(
+                    unlimited_rate_policy{}, ioc);
+        }
+    }
+
+    class handler
+    {
+        boost::optional<error_code> ec_;
+        std::size_t n_;
+
+    public:
+        handler(error_code ec, std::size_t n)
+            : ec_(ec)
+            , n_(n)
+        {
+        }
+
+        handler(handler&& other)
+            : ec_(other.ec_)
+            , n_(boost::exchange(other.n_,
+                (std::numeric_limits<std::size_t>::max)()))
+        {
+        }
+
+        ~handler()
+        {
+            BEAST_EXPECT(
+                n_ == (std::numeric_limits<std::size_t>::max)());
+        }
+
+        void
+        operator()(error_code const& ec, std::size_t n)
+        {
+            BEAST_EXPECTS(ec == ec_, ec.message());
+            BEAST_EXPECT(n == n_);
+            n_ = (std::numeric_limits<std::size_t>::max)();
+        }
+    };
+
+    void
+    testRead()
+    {
+        using stream_type = basic_stream<tcp,
+            net::io_context::executor_type>;
+
+        char buf[4];
+        net::io_context ioc;
+        std::memset(buf, 0, sizeof(buf));
+        net::mutable_buffer mb(buf, sizeof(buf));
+        auto const ep = net::ip::tcp::endpoint(
+            net::ip::make_address("127.0.0.1"), 0);
+
+        // read_some
+
+        {
+            error_code ec;
+            stream_type s(ioc, tcp::v4());
+            BEAST_EXPECT(s.read_some(net::mutable_buffer{}) == 0);
+            BEAST_EXPECT(s.read_some(net::mutable_buffer{}, ec) == 0);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // async_read_some
+
+        {
+            // success
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_never();
+            s.async_read_some(mb, handler({}, 1));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // success, with timeout
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_after(std::chrono::seconds(30));
+            s.async_read_some(mb, handler({}, 1));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // empty buffer
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_never();
+            s.async_read_some(
+                net::mutable_buffer{}, handler({}, 0));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // empty buffer, timeout
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_after(std::chrono::seconds(0));
+            s.async_read_some(net::mutable_buffer{},
+                handler(error::timeout, 0));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // expires_after
+            test_server srv("", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_after(std::chrono::seconds(0));
+            s.async_read_some(mb, handler(error::timeout, 0));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // expires_at
+            test_server srv("", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_at(std::chrono::steady_clock::now());
+            s.async_read_some(mb, handler(error::timeout, 0));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // stream destroyed
+            test_server srv("", ep, log);
+            {
+                stream_type s(ioc);
+                s.socket().connect(srv.local_endpoint());
+                s.expires_after(std::chrono::seconds(0));
+                s.async_read_some(mb,
+                    [](error_code, std::size_t)
+                    {
+                    });
+            }
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // stale timer
+            test_acceptor a;
+            stream_type s(ioc);
+            s.expires_after(std::chrono::milliseconds(50));
+            s.async_read_some(mb,
+                [](error_code, std::size_t)
+                {
+                });
+            std::this_thread::sleep_for(
+                std::chrono::milliseconds(100));
+            ioc.run();
+            ioc.restart();
+        }
+
+        // abandoned operation
+        {
+            stream_type s(ioc);
+            s.async_read_some(net::mutable_buffer{},
+                [](error_code, std::size_t)
+                {
+                    BEAST_FAIL();
+                });
+        }
+    }
+
+    void
+    testWrite()
+    {
+        using stream_type = basic_stream<tcp,
+            net::io_context::executor_type>;
+
+        char buf[4];
+        net::io_context ioc;
+        std::memset(buf, 0, sizeof(buf));
+        net::const_buffer cb(buf, sizeof(buf));
+        auto const ep = net::ip::tcp::endpoint(
+            net::ip::make_address("127.0.0.1"), 0);
+
+        // write_some
+
+        {
+            error_code ec;
+            stream_type s(ioc, tcp::v4());
+            BEAST_EXPECT(s.write_some(net::const_buffer{}) == 0);
+            BEAST_EXPECT(s.write_some(net::const_buffer{}, ec) == 0);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // async_write_some
+
+        {
+            // success
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_never();
+            s.async_write_some(cb, handler({}, 4));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // success, with timeout
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_after(std::chrono::seconds(30));
+            s.async_write_some(cb, handler({}, 4));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // empty buffer
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_never();
+            s.async_write_some(
+                net::const_buffer{}, handler({}, 0));
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // empty buffer, timeout
+            test_server srv("*", ep, log);
+            stream_type s(ioc);
+            s.socket().connect(srv.local_endpoint());
+            s.expires_after(std::chrono::seconds(0));
+            s.async_write_some(net::const_buffer{},
+                handler(error::timeout, 0));
+            ioc.run();
+            ioc.restart();
+        }
+
+        // abandoned operation
+        {
+            stream_type s(ioc);
+            s.async_write_some(cb,
+                [](error_code, std::size_t)
+                {
+                    BEAST_FAIL();
+                });
+        }
+    }
+
+    void
+    testConnect()
+    {
+        using stream_type = basic_stream<tcp,
+            net::io_context::executor_type>;
+
+        struct range
+        {
+            tcp::endpoint ep;
+
+            using iterator =
+                tcp::endpoint const*;
+
+            // VFALCO This is here because asio mistakenly requires it
+            using const_iterator =
+                tcp::endpoint const*;
+
+            iterator begin() const noexcept
+            {
+                return &ep;
+            }
+
+            // VFALCO need to use const_iterator to silence
+            //        warning about unused types
+            const_iterator end() const noexcept
+            {
+                return begin() + 1;
+            }
+        };
+
+        class connect_handler
+        {
+            bool pass_ = false;
+            boost::optional<error_code> expected_ = {};
+
+        public:
+            ~connect_handler()
+            {
+                BEAST_EXPECT(pass_);
+            }
+
+            connect_handler()
+                : expected_(error_code{})
+            {
+            }
+
+            explicit
+            connect_handler(error_code expected)
+                : expected_(expected)
+            {
+            }
+
+            explicit
+            connect_handler(boost::none_t)
+            {
+            }
+
+            connect_handler(connect_handler&& other)
+                : pass_(boost::exchange(other.pass_, true))
+                , expected_(other.expected_)
+            {
+            }
+
+            void operator()(error_code ec)
+            {
+                pass_ = true;
+                if(expected_)
+                    BEAST_EXPECTS(
+                        ec == expected_, ec.message());
+            }
+        };
+
+        struct range_handler
+        {
+            bool pass = false;
+
+            range_handler() = default;
+
+            range_handler(range_handler&& other)
+                : pass(boost::exchange(other.pass, true))
+            {
+            }
+
+            ~range_handler()
+            {
+                BEAST_EXPECT(pass);
+            }
+
+            void operator()(error_code ec, tcp::endpoint)
+            {
+                pass = true;
+                BEAST_EXPECTS(! ec, ec.message());
+            }
+        };
+
+        struct iterator_handler
+        {
+            bool pass = false;
+
+            iterator_handler() = default;
+
+            iterator_handler(iterator_handler&& other)
+                : pass(boost::exchange(other.pass, true))
+            {
+            }
+
+            ~iterator_handler()
+            {
+                BEAST_EXPECT(pass);
+            }
+
+            void operator()(error_code ec, tcp::endpoint const*)
+            {
+                pass = true;
+                BEAST_EXPECTS(! ec, ec.message());
+            }
+        };
+
+        struct connect_condition
+        {
+            bool operator()(error_code, tcp::endpoint) const
+            {
+                return true;
+            };
+        };
+
+        range r;
+        net::io_context ioc;
+        connect_condition cond;
+
+        // connect (member)
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            error_code ec;
+            s.connect(a.ep);
+            s.socket().close();
+            s.connect(a.ep, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // connect
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            error_code ec;
+            r.ep = a.ep;
+            s.connect(r);
+            s.socket().close();
+            s.connect(r, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            error_code ec;
+            r.ep = a.ep;
+            s.connect(r, cond);
+            s.socket().close();
+            s.connect(r, cond, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            error_code ec;
+            r.ep = a.ep;
+            s.connect(r.begin(), r.end());
+            s.socket().close();
+            s.connect(r.begin(), r.end(), ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            error_code ec;
+            r.ep = a.ep;
+            s.connect(r.begin(), r.end(), cond);
+            s.socket().close();
+            s.connect(r.begin(), r.end(), cond, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // async_connect (member)
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            s.expires_never();
+            s.async_connect(a.ep, connect_handler{});
+            ioc.run();
+            ioc.restart();
+            s.socket().close();
+            s.expires_after(std::chrono::seconds(30));
+            s.async_connect(a.ep, connect_handler{});
+            ioc.run();
+            ioc.restart();
+        }
+
+        // async_connect
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            r.ep = a.ep;
+            s.expires_never();
+            s.async_connect(r, range_handler{});
+            ioc.run();
+            ioc.restart();
+            s.socket().close();
+            s.expires_after(std::chrono::seconds(30));
+            s.async_connect(r, range_handler{});
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            r.ep = a.ep;
+            s.expires_never();
+            s.async_connect(r, cond, range_handler{});
+            ioc.run();
+            ioc.restart();
+            s.socket().close();
+            s.expires_after(std::chrono::seconds(30));
+            s.async_connect(r, cond, range_handler{});
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            r.ep = a.ep;
+            s.expires_never();
+            s.async_connect(r.begin(), r.end(),
+                iterator_handler{});
+            ioc.run();
+            ioc.restart();
+            s.socket().close();
+            s.expires_after(std::chrono::seconds(30));
+            s.async_connect(r.begin(), r.end(),
+                iterator_handler{});
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            test_acceptor a;
+            stream_type s(ioc);
+            r.ep = a.ep;
+            s.expires_never();
+            s.async_connect(r.begin(), r.end(), cond,
+                iterator_handler{});
+            ioc.run();
+            ioc.restart();
+            s.socket().close();
+            s.expires_after(std::chrono::seconds(30));
+            s.async_connect(r.begin(), r.end(), cond,
+                iterator_handler{});
+            ioc.run();
+            ioc.restart();
+        }
+#if 0
+        // use_future
+
+        BEAST_EXPECT(static_cast<std::future<
+            tcp::endpoint>(*)(stream_type&,
+                std::array<tcp::endpoint, 2> const&,
+                net::use_future_t<>&&)>(
+                    &beast::async_connect));
+
+        BEAST_EXPECT(static_cast<std::future<
+            tcp::endpoint>(*)(stream_type&,
+                std::array<tcp::endpoint, 2> const&,
+                connect_condition const&,
+                net::use_future_t<>&&)>(
+                    &beast::async_connect));
+
+        BEAST_EXPECT(static_cast<std::future<
+            tcp::endpoint const*>(*)(stream_type&,
+                tcp::endpoint const*,
+                tcp::endpoint const*,
+                net::use_future_t<>&&)>(
+                    &beast::async_connect));
+
+        BEAST_EXPECT(static_cast<std::future<
+            tcp::endpoint const*>(*)(stream_type&,
+                tcp::endpoint const*,
+                tcp::endpoint const*,
+                connect_condition const&,
+                net::use_future_t<>&&)>(
+                    &beast::async_connect));
+
+        // yield_context
+
+        BEAST_EXPECT(static_cast<
+            tcp::endpoint(*)(stream_type&,
+                std::array<tcp::endpoint, 2> const&,
+                net::yield_context&&)>(
+                    &beast::async_connect));
+
+        BEAST_EXPECT(static_cast<
+            tcp::endpoint(*)(stream_type&,
+                std::array<tcp::endpoint, 2> const&,
+                connect_condition const&,
+                net::yield_context&&)>(
+                    &beast::async_connect));
+
+        BEAST_EXPECT(static_cast<
+            tcp::endpoint const*(*)(stream_type&,
+                tcp::endpoint const*,
+                tcp::endpoint const*,
+                net::yield_context&&)>(
+                    &beast::async_connect));
+
+        BEAST_EXPECT(static_cast<
+            tcp::endpoint const*(*)(stream_type&,
+                tcp::endpoint const*,
+                tcp::endpoint const*,
+                connect_condition const&,
+                net::yield_context&&)>(
+                    &beast::async_connect));
+#endif
+
+        //
+        // async_connect timeout
+        //
+
+        {
+            // normal timeout
+            // Requires timeout happen before ECONNREFUSED 
+            stream_type s(ioc);
+            auto const ep = net::ip::tcp::endpoint(
+            #if 1
+                // This address _should_ be unconnectible
+                net::ip::make_address("72.5.65.111"), 1);
+            #else
+                // On Travis ECONNREFUSED happens before the timeout
+                net::ip::make_address("127.0.0.1"), 1);
+            #endif
+            s.expires_after(std::chrono::seconds(0));
+            s.async_connect(ep, connect_handler{error::timeout});
+            ioc.run_for(std::chrono::seconds(1));
+            ioc.restart();
+        }
+
+        {
+            // stream destroyed
+            {
+                stream_type s(ioc);
+                auto const ep = net::ip::tcp::endpoint(
+                    net::ip::make_address("127.0.0.1"), 1);
+                s.expires_after(std::chrono::seconds(0));
+                s.async_connect(ep, connect_handler{boost::none});
+            }
+            ioc.run();
+            ioc.restart();
+        }
+
+        {
+            // stale timer
+            test_acceptor a;
+            stream_type s(ioc);
+            s.expires_after(std::chrono::milliseconds(50));
+            s.async_connect(a.ep, connect_handler{});
+            std::this_thread::sleep_for(
+                std::chrono::milliseconds(100));
+            ioc.run();
+            ioc.restart();
+        }
+
+        // abandoned operation
+        {
+            stream_type s(ioc);
+            net::ip::tcp::endpoint ep(
+                net::ip::make_address_v4("127.0.0.1"), 1);
+            s.async_connect(ep,
+                [](error_code)
+                {
+                    BEAST_FAIL();
+                });
+        }
+    }
+
+    void
+    testMembers()
+    {
+        using stream_type = basic_stream<tcp,
+            net::io_context::executor_type>;
+
+        class handler
+        {
+            bool pass_ = false;
+            boost::optional<error_code> expected_ = {};
+
+        public:
+            ~handler()
+            {
+                BEAST_EXPECT(pass_);
+            }
+
+            handler()
+                : expected_(error_code{})
+            {
+            }
+
+            explicit
+            handler(error_code expected)
+                : expected_(expected)
+            {
+            }
+
+            explicit
+            handler(boost::none_t)
+            {
+            }
+
+            handler(handler&& other)
+                : pass_(boost::exchange(other.pass_, true))
+                , expected_(other.expected_)
+            {
+            }
+
+            void operator()(error_code ec, std::size_t)
+            {
+                pass_ = true;
+                if(expected_)
+                    BEAST_EXPECTS(
+                        ec == expected_, ec.message());
+            }
+        };
+
+        auto const ep = net::ip::tcp::endpoint(
+            net::ip::make_address("127.0.0.1"), 0);
+
+        char buf[4];
+        net::io_context ioc;
+        auto mb = net::buffer(buf);
+        std::memset(buf, 0, sizeof(buf));
+
+        // cancel
+
+        {
+            test_server srv("", ep, log);
+            stream_type s(ioc);
+            s.connect(srv.local_endpoint());
+            s.expires_never();
+            s.socket().async_read_some(mb, handler(
+                net::error::operation_aborted));
+            s.cancel();
+            ioc.run();
+            ioc.restart();
+        }
+
+        // close
+
+        {
+            test_server srv("", ep, log);
+            stream_type s(ioc);
+            s.connect(srv.local_endpoint());
+            s.expires_never();
+            s.socket().async_read_some(mb,
+                handler(boost::none));
+            s.close();
+            ioc.run();
+            ioc.restart();
+        }
+
+        // destructor
+
+        {
+            test_server srv("", ep, log);
+            {
+                stream_type s(ioc);
+                s.connect(srv.local_endpoint());
+                s.expires_never();
+                s.socket().async_read_some(mb,
+                    handler(boost::none));
+            }
+            ioc.run();
+            ioc.restart();
+        }
+
+        // customization points
+
+        {
+            stream_type s(ioc);
+            beast::close_socket(s);
+        }
+
+        {
+            error_code ec;
+            stream_type s(ioc);
+            teardown(role_type::client, s, ec);
+        }
+
+        {
+            stream_type s(ioc);
+            async_teardown(role_type::server, s,
+                [](error_code)
+                {
+                });
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    http::response<http::string_body>
+    make_response(http::request<http::empty_body>)
+    {
+        return {};
+    }
+    void process_http_1 (tcp_stream& stream, net::yield_context yield)
+    {
+        flat_buffer buffer;
+        http::request<http::empty_body> req;
+
+        // Read the request, with a 15 second timeout
+        stream.expires_after(std::chrono::seconds(15));
+        http::async_read(stream, buffer, req, yield);
+
+        // Calculate the response
+        http::response<http::string_body> res = make_response(req);
+
+        // Send the response, with a 30 second timeout.
+        stream.expires_after (std::chrono::seconds(30));
+        http::async_write (stream, res, yield);
+    }
+
+    void process_http_2 (tcp_stream& stream, net::yield_context yield)
+    {
+        flat_buffer buffer;
+        http::request<http::empty_body> req;
+
+        // Require that the read and write combined take no longer than 30 seconds
+        stream.expires_after(std::chrono::seconds(30));
+
+        http::async_read(stream, buffer, req, yield);
+
+        http::response<http::string_body> res = make_response(req);
+        http::async_write (stream, res, yield);
+    }
+
+    void
+    testJavadocs()
+    {
+        BEAST_EXPECT(&basic_stream_test::process_http_1);
+        BEAST_EXPECT(&basic_stream_test::process_http_2);
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testIssue1589()
+    {
+        net::io_context ioc;
+
+        // the timer needlessly used polymorphic executor
+        basic_stream<
+            net::ip::tcp,
+            net::io_context::executor_type>{ioc};
+
+        // make sure strands work
+        basic_stream<
+            net::ip::tcp,
+            net::strand<
+                net::io_context::executor_type>>{
+                    net::make_strand(ioc)};
+
+        // address the problem in the issue
+        {
+            net::basic_stream_socket<
+                net::ip::tcp,
+                net::strand<
+                    net::io_context::executor_type>
+                        > sock(net::make_strand(ioc));
+            basic_stream<
+                net::ip::tcp,
+                net::strand<
+                    net::io_context::executor_type>,
+                unlimited_rate_policy> stream(std::move(sock));
+            BOOST_STATIC_ASSERT(
+                std::is_convertible<
+                    decltype(sock)::executor_type,
+                    decltype(stream)::executor_type>::value);
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    run()
+    {
+        testSpecialMembers();
+        testRead();
+        testWrite();
+        testConnect();
+        testMembers();
+        testJavadocs();
+        testIssue1589();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,basic_stream);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/bind_handler.cpp b/src/boost/libs/beast/test/beast/core/bind_handler.cpp
new file mode 100644
index 000000000..a4ac8f1ce
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/bind_handler.cpp
@@ -0,0 +1,520 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/bind_handler.hpp>
+
+#include "test_handler.hpp"
+
+#include <boost/beast/core/detail/type_traits.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/bind_executor.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/dispatch.hpp>
+#include <boost/asio/defer.hpp>
+#include <boost/asio/post.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/bind/placeholders.hpp>
+#include <boost/core/exchange.hpp>
+#include <memory>
+#include <string>
+
+namespace boost {
+namespace beast {
+
+class bind_handler_test : public unit_test::suite
+{
+public:
+    template<class... Args>
+    struct handler
+    {
+        void
+        operator()(Args const&...) const
+        {
+        }
+    };
+
+    struct copyable
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    struct move_only
+    {
+        move_only() = default;
+        move_only(move_only&&) = default;
+        move_only(move_only const&) = delete;
+        void operator()() const{};
+    };
+
+    // A move-only parameter
+    template<std::size_t I>
+    struct move_arg
+    {
+        move_arg() = default;
+        move_arg(move_arg&&) = default;
+        move_arg(move_arg const&) = delete;
+        void operator()() const
+        {
+        };
+    };
+
+    void
+    callback(int v)
+    {
+        BEAST_EXPECT(v == 42);
+    }
+
+    class test_executor
+    {
+        bind_handler_test& s_;
+        net::io_context::executor_type ex_;
+
+    public:
+        test_executor(
+            test_executor const&) = default;
+
+        test_executor(
+            bind_handler_test& s,
+            net::io_context& ioc)
+            : s_(s)
+            , ex_(ioc.get_executor())
+        {
+        }
+
+        bool operator==(
+            test_executor const& other) const noexcept
+        {
+            return ex_ == other.ex_;
+        }
+
+        bool operator!=(
+            test_executor const& other) const noexcept
+        {
+            return ex_ != other.ex_;
+        }
+
+        net::io_context&
+        context() const noexcept
+        {
+            return ex_.context();
+        }
+
+        void on_work_started() const noexcept
+        {
+            ex_.on_work_started();
+        }
+
+        void on_work_finished() const noexcept
+        {
+            ex_.on_work_finished();
+        }
+
+        template<class F, class Alloc>
+        void dispatch(F&& f, Alloc const& a)
+        {
+            s_.on_invoke();
+            ex_.dispatch(std::forward<F>(f), a);
+        }
+
+        template<class F, class Alloc>
+        void post(F&& f, Alloc const& a)
+        {
+            // shouldn't be called since the enclosing
+            // networking wrapper only uses dispatch
+            BEAST_FAIL();
+        }
+
+        template<class F, class Alloc>
+        void defer(F&& f, Alloc const& a)
+        {
+            // shouldn't be called since the enclosing
+            // networking wrapper only uses dispatch
+            BEAST_FAIL();
+        }
+    };
+
+    class test_cb
+    {
+        bool fail_ = true;
+    
+    public:
+        test_cb() = default;
+        test_cb(test_cb const&) = delete;
+        test_cb(test_cb&& other)
+            : fail_(boost::exchange(
+                other.fail_, false))
+        {
+        }
+
+        ~test_cb()
+        {
+            BEAST_EXPECT(! fail_);
+        }
+
+        void
+        operator()()
+        {
+            fail_ = false;
+            BEAST_EXPECT(true);
+        }
+
+        void
+        operator()(int v)
+        {
+            fail_ = false;
+            BEAST_EXPECT(v == 42);
+        }
+
+        void
+        operator()(int v, string_view s)
+        {
+            fail_ = false;
+            BEAST_EXPECT(v == 42);
+            BEAST_EXPECT(s == "s");
+        }
+
+        void
+        operator()(int v, string_view s, move_arg<1>)
+        {
+            fail_ = false;
+            BEAST_EXPECT(v == 42);
+            BEAST_EXPECT(s == "s");
+        }
+
+        void
+        operator()(int v, string_view s, move_arg<1>, move_arg<2>)
+        {
+            fail_ = false;
+            BEAST_EXPECT(v == 42);
+            BEAST_EXPECT(s == "s");
+        }
+
+        void
+        operator()(error_code, std::size_t n)
+        {
+            fail_ = false;
+            BEAST_EXPECT(n == 256);
+        }
+
+        void
+        operator()(
+            error_code, std::size_t n, string_view s)
+        {
+            boost::ignore_unused(s);
+            fail_ = false;
+            BEAST_EXPECT(n == 256);
+        }
+
+        void
+        operator()(std::shared_ptr<int> const& sp)
+        {
+            fail_ = false;
+            BEAST_EXPECT(sp.get() != nullptr);
+        }
+    };
+
+#if 0
+    // These functions should fail to compile
+
+    void
+    failStdBind()
+    {
+        std::bind(bind_handler(test_cb{}));
+    }
+
+    void
+    failStdBindFront()
+    {
+        std::bind(bind_front_handler(test_cb{}));
+    }
+#endif
+
+    //--------------------------------------------------------------------------
+
+    bool invoked_;
+
+    void
+    on_invoke()
+    {
+        invoked_ = true;
+    }
+
+    template<class F>
+    void
+    testHooks(net::io_context& ioc, F&& f)
+    {
+        invoked_ = false;
+        net::post(ioc, std::forward<F>(f));
+        ioc.run();
+        ioc.restart();
+        BEAST_EXPECT(invoked_);
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testBindHandler()
+    {
+        using m1 = move_arg<1>;
+        using m2 = move_arg<2>;
+
+        {
+            using namespace std::placeholders;
+
+            // 0-ary
+            bind_handler(test_cb{})();
+
+            // 1-ary
+            bind_handler(test_cb{}, 42)(); 
+            bind_handler(test_cb{}, _1)(42);
+            bind_handler(test_cb{}, _2)(0, 42);
+
+            // 2-ary
+            bind_handler(test_cb{}, 42, "s")();
+            bind_handler(test_cb{}, 42, "s")(0);
+            bind_handler(test_cb{}, _1, "s")(42);
+            bind_handler(test_cb{}, 42, _1) ("s");
+            bind_handler(test_cb{}, _1, _2)(42, "s");
+            bind_handler(test_cb{}, _1, _2)(42, "s", "X");
+            bind_handler(test_cb{}, _2, _1)("s", 42);
+            bind_handler(test_cb{}, _3, _2)("X", "s", 42);
+
+            // 3-ary
+            bind_handler(test_cb{}, 42, "s")(m1{});
+            bind_handler(test_cb{}, 42, "s", _1)(m1{});
+            bind_handler(test_cb{}, 42, _1, m1{})("s");
+
+            // 4-ary
+            bind_handler(test_cb{}, 42, "s")(m1{}, m2{});
+            bind_handler(test_cb{}, 42, "s", m1{})(m2{});
+            bind_handler(test_cb{}, 42, "s", m1{}, m2{})();
+            bind_handler(test_cb{}, 42, _1, m1{})("s", m2{});
+            bind_handler(test_cb{}, _3, _1, m1{})("s", m2{}, 42);
+        }
+
+        {
+            using namespace boost::placeholders;
+
+            // 0-ary
+            bind_handler(test_cb{})();
+
+            // 1-ary
+            bind_handler(test_cb{}, 42)(); 
+            bind_handler(test_cb{}, _1)(42);
+            bind_handler(test_cb{}, _2)(0, 42);
+
+            // 2-ary
+            bind_handler(test_cb{}, 42, "s")();
+            bind_handler(test_cb{}, 42, "s")(0);
+            bind_handler(test_cb{}, _1, "s")(42);
+            bind_handler(test_cb{}, 42, _1) ("s");
+            bind_handler(test_cb{}, _1, _2)(42, "s");
+            bind_handler(test_cb{}, _1, _2)(42, "s", "X");
+            bind_handler(test_cb{}, _2, _1)("s", 42);
+            bind_handler(test_cb{}, _3, _2)("X", "s", 42);
+
+            // 3-ary
+            bind_handler(test_cb{}, 42, "s")(m1{});
+            bind_handler(test_cb{}, 42, "s", _1)(m1{});
+            bind_handler(test_cb{}, 42, _1, m1{})("s");
+
+            // 4-ary
+            bind_handler(test_cb{}, 42, "s")(m1{}, m2{});
+            bind_handler(test_cb{}, 42, "s", m1{})(m2{});
+            bind_handler(test_cb{}, 42, "s", m1{}, m2{})();
+            bind_handler(test_cb{}, 42, _1, m1{})("s", m2{});
+            bind_handler(test_cb{}, _3, _1, m1{})("s", m2{}, 42);
+        }
+
+        // perfect forwarding
+        {
+            std::shared_ptr<int> const sp =
+                std::make_shared<int>(42);
+            {
+                bind_handler(test_cb{}, sp)();
+                BEAST_EXPECT(sp.get() != nullptr);
+            }
+            {
+                bind_handler(test_cb{})(sp);
+                BEAST_EXPECT(sp.get() != nullptr);
+            }
+        }
+
+        // associated executor
+        {
+            net::io_context ioc;
+            testHooks(ioc, bind_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{})));
+        }
+
+        // asio_handler_invoke
+        {
+            // make sure things compile, also can set a
+            // breakpoint in asio_handler_invoke to make sure
+            // it is instantiated.
+            net::io_context ioc;
+            net::strand<
+                net::io_context::executor_type> s{
+                    ioc.get_executor()};
+            net::post(s,
+                bind_handler(test_cb{}, 42));
+            ioc.run();
+        }
+
+        // legacy hooks
+        legacy_handler::test(
+            [](legacy_handler h)
+            {
+                return bind_handler(h);
+            });
+    }
+
+    void
+    testBindFrontHandler()
+    {
+        using m1 = move_arg<1>;
+        using m2 = move_arg<2>;
+
+        // 0-ary
+        bind_front_handler(test_cb{})();
+
+        // 1-ary
+        bind_front_handler(test_cb{}, 42)(); 
+        bind_front_handler(test_cb{})(42);
+
+        // 2-ary
+        bind_front_handler(test_cb{}, 42, "s")();
+        bind_front_handler(test_cb{}, 42)("s");
+        bind_front_handler(test_cb{})(42, "s");
+
+        // 3-ary
+        bind_front_handler(test_cb{}, 42, "s", m1{})();
+        bind_front_handler(test_cb{}, 42, "s")(m1{});
+        bind_front_handler(test_cb{}, 42)("s", m1{});
+        bind_front_handler(test_cb{})(42, "s", m1{});
+
+        // 4-ary
+        bind_front_handler(test_cb{}, 42, "s", m1{}, m2{})();
+        bind_front_handler(test_cb{}, 42, "s", m1{})(m2{});
+        bind_front_handler(test_cb{}, 42, "s")(m1{}, m2{});
+        bind_front_handler(test_cb{}, 42)("s", m1{}, m2{});
+        bind_front_handler(test_cb{})(42, "s", m1{}, m2{});
+
+        error_code ec;
+        std::size_t n = 256;
+        
+        // void(error_code, size_t)
+        bind_front_handler(test_cb{}, ec, n)();
+
+        // void(error_code, size_t)(string_view)
+        bind_front_handler(test_cb{}, ec, n)("s");
+
+        // perfect forwarding
+        {
+            std::shared_ptr<int> const sp =
+                std::make_shared<int>(42);
+            bind_front_handler(test_cb{}, sp)();
+            BEAST_EXPECT(sp.get() != nullptr);
+        }
+
+        // associated executor
+        {
+            net::io_context ioc;
+
+            testHooks(ioc, bind_front_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{})
+                ));
+            testHooks(ioc, bind_front_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{}),
+                42));
+            testHooks(ioc, bind_front_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{}),
+                42, "s"));
+            testHooks(ioc, bind_front_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{}),
+                42, "s", m1{}));
+            testHooks(ioc, bind_front_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{}),
+                42, "s", m1{}, m2{}));
+            testHooks(ioc, bind_front_handler(net::bind_executor(
+                test_executor(*this, ioc), test_cb{}),
+                ec, n));
+        }
+
+        // legacy hooks
+        legacy_handler::test(
+            [](legacy_handler h)
+            {
+                return bind_front_handler(h);
+            });
+        legacy_handler::test(
+            [](legacy_handler h)
+            {
+                return bind_front_handler(
+                    h, error_code{}, std::size_t{});
+            });
+    }
+
+
+    //--------------------------------------------------------------------------
+
+    template <class AsyncReadStream, class ReadHandler>
+    void
+    signal_aborted (AsyncReadStream& stream, ReadHandler&& handler)
+    {
+        net::post(
+            stream.get_executor(),
+            bind_handler (std::forward <ReadHandler> (handler),
+                net::error::operation_aborted, 0));
+    }
+
+    template <class AsyncReadStream, class ReadHandler>
+    void
+    signal_eof (AsyncReadStream& stream, ReadHandler&& handler)
+    {
+        net::post(
+            stream.get_executor(),
+            bind_front_handler (std::forward<ReadHandler> (handler),
+                net::error::eof, 0));
+    }
+
+    void
+    testJavadocs()
+    {
+        BEAST_EXPECT((
+            &bind_handler_test::signal_aborted<
+                test::stream, handler<error_code, std::size_t>>));
+            
+        BEAST_EXPECT((
+            &bind_handler_test::signal_eof<
+                test::stream, handler<error_code, std::size_t>>));
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    run() override
+    {
+        testBindHandler();
+        testBindFrontHandler();
+        testJavadocs();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,bind_handler);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffer_traits.cpp b/src/boost/libs/beast/test/beast/core/buffer_traits.cpp
new file mode 100644
index 000000000..ae8b6b6e6
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffer_traits.cpp
@@ -0,0 +1,242 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffer_traits.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/detail/is_invocable.hpp>
+#include <array>
+
+namespace boost {
+namespace beast {
+
+namespace {
+
+struct sequence
+{
+    struct value_type
+    {
+        operator net::const_buffer() const noexcept
+        {
+            return {"Hello, world!", 13};
+        }
+    };
+
+    using const_iterator = value_type const*;
+
+    const_iterator begin() const noexcept
+    {
+        return &v_;
+    }
+
+    const_iterator end() const noexcept
+    {
+        return begin() + 1;
+    }
+
+private:
+    value_type v_;
+};
+
+struct not_sequence
+{
+};
+
+} // (anon)
+
+class buffer_traits_test : public beast::unit_test::suite
+{
+public:
+    // is_const_buffer_sequence
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::const_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::const_buffer, net::const_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::const_buffer, net::mutable_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::mutable_buffer, net::mutable_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::const_buffer const&
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::const_buffer const&, net::const_buffer const&
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_const_buffer_sequence<
+        net::const_buffer const&, net::mutable_buffer const&
+            >::value);
+
+    // is_mutable_buffer_sequence
+
+    BOOST_STATIC_ASSERT(is_mutable_buffer_sequence<
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_mutable_buffer_sequence<
+        net::mutable_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_mutable_buffer_sequence<
+        net::mutable_buffer, net::mutable_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(! is_mutable_buffer_sequence<
+        net::const_buffer, net::const_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(! is_mutable_buffer_sequence<
+        net::const_buffer, net::mutable_buffer
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_mutable_buffer_sequence<
+        net::mutable_buffer const&
+            >::value);
+
+    BOOST_STATIC_ASSERT(is_mutable_buffer_sequence<
+        net::mutable_buffer const&, net::mutable_buffer const&
+            >::value);
+
+    // buffers_type
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::const_buffer, buffers_type<
+            net::const_buffer
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::const_buffer, buffers_type<
+            net::const_buffer, net::const_buffer
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::const_buffer, buffers_type<
+            net::const_buffer, net::mutable_buffer
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::mutable_buffer, buffers_type<
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::mutable_buffer, buffers_type<
+            net::mutable_buffer
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::mutable_buffer, buffers_type<
+            net::mutable_buffer, net::mutable_buffer
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::const_buffer, buffers_type<
+            std::array<net::const_buffer, 3>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::mutable_buffer, buffers_type<
+            std::array<net::mutable_buffer, 3>
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::const_buffer, buffers_type<
+            std::array<int, 3>
+        >>::value);
+
+    // buffers_iterator_type
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::const_buffer const*, buffers_iterator_type<
+            net::const_buffer
+        >>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_same<net::mutable_buffer const*, buffers_iterator_type<
+            net::mutable_buffer
+        >>::value);
+
+    // javadoc: buffers_type
+    template <class BufferSequence>
+    buffers_type <BufferSequence>
+    buffers_front (BufferSequence const& buffers)
+    {
+        static_assert(
+            net::is_const_buffer_sequence<BufferSequence>::value,
+            "BufferSequence type requirements not met");
+        auto const first = net::buffer_sequence_begin (buffers);
+        if (first == net::buffer_sequence_end (buffers))
+            return {};
+        return *first;
+    }
+
+    void
+    testJavadocs()
+    {
+        // buffers_front
+        {
+            net::const_buffer cb;
+            buffers_front(cb);
+
+            net::mutable_buffer mb;
+            buffers_front(mb);
+        }
+
+        pass();
+    }
+
+    void
+    testFunction()
+    {
+        BEAST_EXPECT(buffer_bytes(
+            net::const_buffer("Hello, world!", 13)) == 13);
+
+        BEAST_EXPECT(buffer_bytes(
+            net::mutable_buffer{}) == 0);
+
+        {
+            sequence s;
+            BEAST_EXPECT(buffer_bytes(s) == 13);
+        }
+
+        {
+            std::array<net::const_buffer, 2> s({{
+                net::const_buffer("Hello, world!", 13),
+                net::const_buffer("Hello, world!", 13)}});
+            BEAST_EXPECT(buffer_bytes(s) == 26);
+        }
+
+        BOOST_STATIC_ASSERT(! detail::is_invocable<
+            detail::buffer_bytes_impl,
+            std::size_t(not_sequence const&)>::value);
+    }
+
+    void run() override
+    {
+        testJavadocs();
+        testFunction();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffer_traits);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffered_read_stream.cpp b/src/boost/libs/beast/test/beast/core/buffered_read_stream.cpp
new file mode 100644
index 000000000..c24abf566
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffered_read_stream.cpp
@@ -0,0 +1,230 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffered_read_stream.hpp>
+
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/bind_handler.hpp>
+#include <boost/beast/test/yield_to.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/read.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/optional.hpp>
+
+namespace boost {
+namespace beast {
+
+class buffered_read_stream_test
+    : public unit_test::suite
+    , public test::enable_yield_to
+{
+    using self = buffered_read_stream_test;
+
+public:
+    void testSpecialMembers()
+    {
+        net::io_context ioc;
+        {
+            buffered_read_stream<test::stream, multi_buffer> srs(ioc);
+            buffered_read_stream<test::stream, multi_buffer> srs2(std::move(srs));
+            srs = std::move(srs2);
+            BEAST_EXPECT(&srs.get_executor().context() == &ioc);
+            BEAST_EXPECT(
+                &srs.get_executor().context() == &srs2.get_executor().context());
+        }
+        {
+            test::stream ts{ioc};
+            buffered_read_stream<test::stream&, multi_buffer> srs(ts);
+        }
+    }
+
+    struct loop : std::enable_shared_from_this<loop>
+    {
+        static std::size_t constexpr limit = 100;
+        std::string s_;
+        std::size_t n_ = 0;
+        std::size_t cap_;
+        unit_test::suite& suite_;
+        net::io_context& ioc_;
+        boost::optional<test::stream> ts_;
+        boost::optional<test::fail_count> fc_;
+        boost::optional<buffered_read_stream<
+            test::stream&, multi_buffer>> brs_;
+
+        loop(
+            unit_test::suite& suite,
+            net::io_context& ioc,
+            std::size_t cap)
+            : cap_(cap)
+            , suite_(suite)
+            , ioc_(ioc)
+        {
+        }
+
+        void
+        run()
+        {
+            do_read();
+        }
+
+        void
+        on_read(error_code ec, std::size_t)
+        {
+            if(! ec)
+            {
+                suite_.expect(s_ ==
+                    "Hello, world!", __FILE__, __LINE__);
+                return;
+            }
+            ++n_;
+            if(! suite_.expect(n_ < limit, __FILE__, __LINE__))
+                return;
+            s_.clear();
+            do_read();
+        }
+
+        void
+        do_read()
+        {
+            s_.resize(13);
+            fc_.emplace(n_);
+            ts_.emplace(ioc_, *fc_, ", world!");
+            brs_.emplace(*ts_);
+            brs_->buffer().commit(net::buffer_copy(
+                brs_->buffer().prepare(5), net::buffer("Hello", 5)));
+            net::async_read(*brs_,
+                net::buffer(&s_[0], s_.size()),
+                    bind_front_handler(
+                        &loop::on_read,
+                        shared_from_this()));
+        }
+    };
+
+    void
+    testAsyncLoop()
+    {
+        std::make_shared<loop>(*this, ioc_, 0)->run();
+        std::make_shared<loop>(*this, ioc_, 3)->run();
+    }
+
+    void testRead(yield_context do_yield)
+    {
+        static std::size_t constexpr limit = 100;
+        std::size_t n;
+        std::string s;
+        s.resize(13);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream ts(ioc_, fc, ", world!");
+            buffered_read_stream<
+                test::stream&, multi_buffer> srs(ts);
+            srs.buffer().commit(net::buffer_copy(
+                srs.buffer().prepare(5), net::buffer("Hello", 5)));
+            error_code ec = test::error::test_failure;
+            net::read(srs, net::buffer(&s[0], s.size()), ec);
+            if(! ec)
+            {
+                BEAST_EXPECT(s == "Hello, world!");
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream ts(ioc_, fc, ", world!");
+            buffered_read_stream<
+                test::stream&, multi_buffer> srs(ts);
+            srs.capacity(3);
+            srs.buffer().commit(net::buffer_copy(
+                srs.buffer().prepare(5), net::buffer("Hello", 5)));
+            error_code ec = test::error::test_failure;
+            net::read(srs, net::buffer(&s[0], s.size()), ec);
+            if(! ec)
+            {
+                BEAST_EXPECT(s == "Hello, world!");
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream ts(ioc_, fc, ", world!");
+            buffered_read_stream<
+                test::stream&, multi_buffer> srs(ts);
+            srs.buffer().commit(net::buffer_copy(
+                srs.buffer().prepare(5), net::buffer("Hello", 5)));
+            error_code ec = test::error::test_failure;
+            net::async_read(
+                srs, net::buffer(&s[0], s.size()), do_yield[ec]);
+            if(! ec)
+            {
+                BEAST_EXPECT(s == "Hello, world!");
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream ts(ioc_, fc, ", world!");
+            buffered_read_stream<
+                test::stream&, multi_buffer> srs(ts);
+            srs.capacity(3);
+            srs.buffer().commit(net::buffer_copy(
+                srs.buffer().prepare(5), net::buffer("Hello", 5)));
+            error_code ec = test::error::test_failure;
+            net::async_read(
+                srs, net::buffer(&s[0], s.size()), do_yield[ec]);
+            if(! ec)
+            {
+                BEAST_EXPECT(s == "Hello, world!");
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void run() override
+    {
+        testSpecialMembers();
+
+        yield_to([&](yield_context yield)
+        {
+            testRead(yield);
+        });
+
+        testAsyncLoop();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffered_read_stream);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_adapter.cpp b/src/boost/libs/beast/test/beast/core/buffers_adapter.cpp
new file mode 100644
index 000000000..d5ceff3c5
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_adapter.cpp
@@ -0,0 +1,23 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_ALLOW_DEPRECATED
+#define BOOST_BEAST_ALLOW_DEPRECATED
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_adapter.hpp>
+
+namespace boost {
+namespace beast {
+
+BOOST_STATIC_ASSERT(sizeof(buffers_adapter<net::mutable_buffer>) > 0);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_adaptor.cpp b/src/boost/libs/beast/test/beast/core/buffers_adaptor.cpp
new file mode 100644
index 000000000..12c1f5bba
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_adaptor.cpp
@@ -0,0 +1,174 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_adaptor.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/streambuf.hpp>
+#include <iterator>
+
+namespace boost {
+namespace beast {
+
+struct buffers_adaptor_test_hook
+{
+    template<class MutableBufferSequence>
+    static
+    auto
+    make_subrange(
+        buffers_adaptor <MutableBufferSequence> &adaptor,
+        std::size_t pos = 0,
+        std::size_t n = (std::numeric_limits<std::size_t>::max)())
+    -> typename buffers_adaptor<MutableBufferSequence>::mutable_buffers_type
+    {
+        return adaptor.make_subrange(pos, n);
+    }
+
+    template<class MutableBufferSequence>
+    static
+    auto
+    make_subrange(
+        buffers_adaptor<MutableBufferSequence> const& adaptor,
+        std::size_t pos = 0,
+        std::size_t n = (std::numeric_limits<std::size_t>::max)())
+    -> typename buffers_adaptor<MutableBufferSequence>::const_buffers_type
+    {
+        return adaptor.make_subrange(pos, n);
+    }
+};
+
+class buffers_adaptor_test : public unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        is_mutable_dynamic_buffer<
+            buffers_adaptor<buffers_triple>>::value);
+
+    void
+    testDynamicBuffer()
+    {
+        char s[13];
+        buffers_triple tb(s, sizeof(s));
+        buffers_adaptor<buffers_triple> b(tb);
+        test_dynamic_buffer(b);
+    }
+
+    void
+    testSpecial()
+    {
+        char s1[13];
+        buffers_triple tb1(s1, sizeof(s1));
+        BEAST_EXPECT(buffer_bytes(tb1) == sizeof(s1));
+
+        char s2[15];
+        buffers_triple tb2(s2, sizeof(s2));
+        BEAST_EXPECT(buffer_bytes(tb2) == sizeof(s2));
+
+        {
+            // construction
+
+            buffers_adaptor<buffers_triple> b1(tb1);
+            BEAST_EXPECT(b1.value() == tb1);
+
+            buffers_adaptor<buffers_triple> b2(tb2);
+            BEAST_EXPECT(b2.value() == tb2);
+
+            buffers_adaptor<buffers_triple> b3(b2);
+            BEAST_EXPECT(b3.value() == tb2);
+
+            char s3[15];
+            buffers_adaptor<buffers_triple> b4(
+                boost::in_place_init, s3, sizeof(s3));
+            BEAST_EXPECT(b4.value() == buffers_triple(s3, sizeof(s3)));
+
+            // assignment
+
+            b3 = b1;
+            BEAST_EXPECT(b3.value() == tb1);
+        }
+    }
+
+    void
+    testIssue386()
+    {
+        using type = net::streambuf;
+        type buffer;
+        buffers_adaptor<
+            type::mutable_buffers_type> ba{buffer.prepare(512)};
+        read_size(ba, 1024);
+    }
+
+    template<bool isMutable>
+    void
+    testSubrange()
+    {
+        std::string s =
+            "the quick brown fox jumps over the lazy dog";
+
+        auto iterate_test = [&](
+            std::size_t a,
+            std::size_t b,
+            std::size_t c)
+        {
+            auto buffers = std::vector<net::mutable_buffer>();
+            if (a)
+                buffers.push_back(net::buffer(&s[0], a));
+            if (b - a)
+                buffers.push_back(net::buffer(&s[a], (b - a)));
+            if (c - b)
+                buffers.push_back(net::buffer(&s[b], (c - b)));
+            auto adapter = buffers_adaptor<std::vector<net::mutable_buffer>>(buffers);
+
+            using maybe_mutable =
+            typename std::conditional<
+                isMutable,
+                buffers_adaptor<std::vector<net::mutable_buffer>>&,
+                buffers_adaptor<std::vector<net::mutable_buffer>> const&>::type;
+
+            auto sub = buffers_adaptor_test_hook::make_subrange(static_cast<maybe_mutable>(adapter));
+            /*
+            using value_type = typename std::conditional<
+                isMutable, net::mutable_buffer, net::const_buffer>::type;
+            BEAST_EXPECTS(typeid(typename decltype(sub)::value_type) == typeid(value_type), "iterate_test");
+            */
+            BEAST_EXPECT(buffers_to_string(sub) == s.substr(0, c));
+        };
+
+        iterate_test(0, 0, 1);
+
+        for (std::size_t a = 0; a <= s.size(); ++a)
+            for (std::size_t b = a; b <= s.size(); ++b)
+                for (std::size_t c = b; c <= s.size(); ++c)
+                    iterate_test(a, b, c);
+    }
+
+
+    void
+    run() override
+    {
+        testDynamicBuffer();
+        testSpecial();
+        testIssue386();
+        testSubrange<true>();
+        testSubrange<false>();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffers_adaptor);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_cat.cpp b/src/boost/libs/beast/test/beast/core/buffers_cat.cpp
new file mode 100644
index 000000000..7cd3e6423
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_cat.cpp
@@ -0,0 +1,333 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_cat.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_prefix.hpp>
+#include <boost/beast/core/buffers_suffix.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/streambuf.hpp>
+#include <iterator>
+#include <list>
+#include <type_traits>
+#include <vector>
+
+namespace boost {
+namespace beast {
+
+class buffers_cat_test : public unit_test::suite
+{
+public:
+    void
+    testDefaultIterators()
+    {
+        // default ctor is one past the end
+        char c[2] = {};
+        auto bs = buffers_cat(
+            net::const_buffer(&c[0], 1),
+            net::const_buffer(&c[1], 1));
+        decltype(bs)::const_iterator it;
+        decltype(bs)::const_iterator it2;
+        BEAST_EXPECT(it == it2);
+        BEAST_EXPECT(it2 == it);
+        it = bs.end();
+        it2 = bs.end();
+        BEAST_EXPECT(it == it2);
+        BEAST_EXPECT(it2 == it);
+        decltype(bs)::const_iterator it3(it2);
+        BEAST_EXPECT(it3 == it2);
+        it = bs.begin();
+        BEAST_EXPECT(it != it3);
+        it = it3;
+        BEAST_EXPECT(it == it3);
+
+        // dereferencing default iterator should throw
+        try
+        {
+            it = {};
+            (void)*it;
+            fail();
+        }
+        catch(std::logic_error const&)
+        {
+            pass();
+        }
+        catch(...)
+        {
+            fail();
+        }
+    }
+
+    void
+    testBufferSequence()
+    {
+        string_view s = "Hello, world!";
+        net::const_buffer b1(s.data(), 6);
+        net::const_buffer b2(
+            s.data() + b1.size(), s.size() - b1.size());
+        test_buffer_sequence(buffers_cat(b1, b2));
+    }
+
+    template<class F>
+    void
+    checkException(F&& f)
+    {
+        try
+        {
+            f();
+            fail("missing exception", __FILE__, __LINE__);
+        }
+        catch(std::logic_error const&)
+        {
+            pass();
+        }
+        catch(...)
+        {
+            fail("wrong exception", __FILE__, __LINE__);
+        }
+    }
+
+    void
+    testExceptions()
+    {
+        net::const_buffer b1{"He", 2};
+        net::const_buffer b2{"llo,", 4};
+        net::const_buffer b3{" world!", 7};
+
+        auto const b = beast::buffers_cat(b1, b2, b3);
+        using type = decltype(b);
+
+        // Dereferencing a default-constructed iterator
+        checkException(
+            []
+            {
+                (void)*(type::const_iterator{});
+            });
+
+        // Incrementing a default-constructed iterator
+        checkException(
+            []
+            {
+                ++(type::const_iterator{});
+            });
+
+        // Decrementing a default-constructed iterator
+        checkException(
+            []
+            {
+                --(type::const_iterator{});
+            });
+
+        // Decrementing an iterator to the beginning
+        checkException(
+            [&b]
+            {
+                --b.begin();
+            });
+
+        // Dereferencing an iterator to the end
+        checkException(
+            [&b]
+            {
+                *b.end();
+            });
+
+        // Incrementing an iterator to the end
+        checkException(
+            [&b]
+            {
+                ++b.end();
+            });
+    }
+
+    void
+    testEmpty()
+    {
+        struct empty_sequence
+        {
+            using value_type = net::const_buffer;
+            using const_iterator = value_type const*;
+
+            const_iterator
+            begin() const noexcept
+            {
+                return &v_;
+            }
+
+            const_iterator
+            end() const noexcept
+            {
+                return begin();
+            }
+
+        private:
+            value_type v_;
+        };
+
+        {
+            net::const_buffer b0{};
+            net::const_buffer b1{"He", 2};
+            net::const_buffer b2{"llo,", 4};
+            net::const_buffer b3{" world!", 7};
+
+            {
+                auto const b = beast::buffers_cat(b0, b0);
+                BEAST_EXPECT(buffer_bytes(b) == 0);
+                BEAST_EXPECT(buffers_length(b) == 0);
+            }
+            {
+                auto const b = beast::buffers_cat(b0, b0, b0, b0);
+                BEAST_EXPECT(buffer_bytes(b) == 0);
+                BEAST_EXPECT(buffers_length(b) == 0);
+            }
+            {
+                auto const b = beast::buffers_cat(b1, b2, b3);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 3);
+                test_buffer_sequence(b);
+            }
+            {
+                auto const b = beast::buffers_cat(b0, b1, b2, b3);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 3);
+                test_buffer_sequence(b);
+            }
+            {
+                auto const b = beast::buffers_cat(b1, b0, b2, b3);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 3);
+                test_buffer_sequence(b);
+            }
+            {
+                auto const b = beast::buffers_cat(b1, b2, b0, b3);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 3);
+                test_buffer_sequence(b);
+            }
+            {
+                auto const b = beast::buffers_cat(b1, b2, b3, b0);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 3);
+                test_buffer_sequence(b);
+            }
+        }
+
+        {
+            auto e1 = net::const_buffer{};
+            auto b1 = std::array<net::const_buffer, 3>{{
+                e1,
+                net::const_buffer{"He", 2},
+                net::const_buffer{"l", 1} }};
+            auto b2 = std::array<net::const_buffer, 3>{{
+                net::const_buffer{"lo", 2},
+                e1,
+                net::const_buffer{", ", 2} }};
+            auto b3 = std::array<net::const_buffer, 3>{{
+                net::const_buffer{"w", 1},
+                net::const_buffer{"orld!", 5},
+                e1 }};
+            {
+                auto const b = beast::buffers_cat(
+                    e1, b1, e1, b2, e1, b3, e1);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 6);
+            }
+        }
+
+        {
+            auto e1 = net::const_buffer{};
+            auto e2 = empty_sequence{};
+            auto b1 = std::array<net::const_buffer, 3>{{
+                e1,
+                net::const_buffer{"He", 2},
+                net::const_buffer{"l", 1} }};
+            auto b2 = std::array<net::const_buffer, 3>{{
+                net::const_buffer{"lo", 2},
+                e1,
+                net::const_buffer{", ", 2} }};
+            auto b3 = std::array<net::const_buffer, 3>{{
+                net::const_buffer{"w", 1},
+                net::const_buffer{"orld!", 5},
+                e1 }};
+            {
+                auto const b = beast::buffers_cat(
+                    e2, b1, e2, b2, e2, b3, e2);
+                BEAST_EXPECT(beast::buffers_to_string(b) == "Hello, world!");
+                BEAST_EXPECT(buffers_length(b) == 6);
+            }
+        }
+    }
+
+    void
+    testGccWarning1()
+    {
+        char out[64];
+        std::array<net::const_buffer, 2> buffers{
+            {net::buffer("Hello, "), net::buffer("world!")}};
+        std::size_t i = 3;
+        buffers_suffix<std::array<net::const_buffer, 2>> cb(buffers);
+        cb.consume(i);
+        net::buffer_copy(
+            net::buffer(out),
+            buffers_cat(cb, cb));
+    }
+
+    // VFALCO Some version of g++ incorrectly complain about
+    //        uninitialized values when buffers_cat and
+    //        buffers_prefix and/or buffers_suffix are used
+    //        together.
+    void
+    testGccWarning2()
+    {
+        char out[64];
+        net::const_buffer buffers("Hello, world!", 13);
+        std::size_t i = 3;
+        buffers_suffix<net::const_buffer> cb{buffers};
+        cb.consume(i);
+        net::buffer_copy(
+            net::buffer(out),
+            buffers_cat(buffers_prefix(i, buffers), cb));
+    }
+
+    void
+    testSingleBuffer()
+    {
+        char c[1] = {};
+        auto b = net::const_buffer(c, 1);
+        auto bs = buffers_cat(net::const_buffer(c, 1));
+        auto first = net::buffer_sequence_begin(bs);
+        auto last = net::buffer_sequence_end(bs);
+        BOOST_ASSERT(first != last);
+        BEAST_EXPECT(std::distance(first, last) == 1);
+        net::const_buffer b2(*first);
+        BEAST_EXPECT(b.data() == b2.data());
+        BEAST_EXPECT(b.size() == b2.size());
+    }
+
+    void run() override
+    {
+        testDefaultIterators();
+        testBufferSequence();
+        testExceptions();
+        testEmpty();
+        testGccWarning1();
+        testGccWarning2();
+        testSingleBuffer();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffers_cat);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_prefix.cpp b/src/boost/libs/beast/test/beast/core/buffers_prefix.cpp
new file mode 100644
index 000000000..86f84e5b9
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_prefix.cpp
@@ -0,0 +1,172 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_prefix.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <string>
+
+namespace boost {
+namespace beast {
+
+class buffers_prefix_test : public beast::unit_test::suite
+{
+public:
+    void
+    testBufferSequence()
+    {
+        char buf[13];
+        auto const b =
+            buffers_triple(buf, sizeof(buf));
+        for(std::size_t i = 1; i <= sizeof(buf); ++i)
+            test_buffer_sequence(
+                buffers_prefix(i, b));
+    }
+
+    void
+    testInPlaceInit()
+    {
+        {
+            class test_buffers
+            {
+                net::const_buffer cb_;
+
+            public:
+                using const_iterator =
+                    net::const_buffer const*;
+
+                explicit
+                test_buffers(std::true_type)
+                {
+                }
+
+                const_iterator
+                begin() const
+                {
+                    return &cb_;
+                }
+
+                const_iterator
+                end() const
+                {
+                    return begin() + 1;
+                }
+            };
+            buffers_prefix_view<test_buffers> v(
+                2, boost::in_place_init, std::true_type{});
+            BEAST_EXPECT(buffer_bytes(v) == 0);
+        }
+
+        {
+            char c[2];
+            c[0] = 0;
+            c[1] = 0;
+            buffers_prefix_view<net::const_buffer> v(
+                2, boost::in_place_init, c, sizeof(c));
+            BEAST_EXPECT(buffer_bytes(v) == 2);
+        }
+
+        {
+            char c[2];
+            buffers_prefix_view<net::mutable_buffer> v(
+                2, boost::in_place_init, c, sizeof(c));
+            BEAST_EXPECT(buffer_bytes(v) == 2);
+        }
+    }
+
+    template<class BufferType>
+    void
+    testPrefixes()
+    {
+        std::string s = "Hello, world";
+        BEAST_EXPECT(s.size() == 12);
+        for(std::size_t x = 1; x < 4; ++x) {
+        for(std::size_t y = 1; y < 4; ++y) {
+        {
+            std::size_t z = s.size() - (x + y);
+            std::array<BufferType, 3> bs{{
+                BufferType{&s[0], x},
+                BufferType{&s[x], y},
+                BufferType{&s[x+y], z}}};
+            for(std::size_t i = 0; i <= s.size() + 1; ++i)
+            {
+                auto pb = buffers_prefix(i, bs);
+                BEAST_EXPECT(buffers_to_string(pb) == s.substr(0, i));
+                auto pb2 = pb;
+                BEAST_EXPECT(buffers_to_string(pb2) == buffers_to_string(pb));
+                pb = buffers_prefix(0, bs);
+                pb2 = pb;
+                BEAST_EXPECT(buffer_bytes(pb2) == 0);
+                pb2 = buffers_prefix(i, bs);
+                BEAST_EXPECT(buffers_to_string(pb2) == s.substr(0, i));
+            }
+        }
+        } }
+    }
+
+    void testEmpty()
+    {
+        auto pb0 = buffers_prefix(0, net::mutable_buffer{});
+        BEAST_EXPECT(buffer_bytes(pb0) == 0);
+        auto pb1 = buffers_prefix(1, net::mutable_buffer{});
+        BEAST_EXPECT(buffer_bytes(pb1) == 0);
+        BEAST_EXPECT(net::buffer_copy(pb0, pb1) == 0);
+    }
+
+    void
+    testBuffersFront()
+    {
+        {
+            std::array<net::const_buffer, 2> v;
+            v[0] = {"", 0};
+            v[1] = net::const_buffer("Hello, world!", 13);
+            BEAST_EXPECT(buffers_front(v).size() == 0);
+            std::swap(v[0], v[1]);
+            BEAST_EXPECT(buffers_front(v).size() == 13);
+        }
+        {
+            struct null_sequence
+            {
+                net::const_buffer b;
+                using iterator = net::const_buffer const*;
+                iterator begin() const noexcept
+                {
+                    return &b;
+                }
+                iterator end() const noexcept
+                {
+                    return begin();
+                }
+            };
+            null_sequence z;
+            BEAST_EXPECT(buffers_front(z).size() == 0);
+        }
+    }
+
+    void
+    run() override
+    {
+        testBufferSequence();
+        testInPlaceInit();
+        testPrefixes<net::const_buffer>();
+        testPrefixes<net::mutable_buffer>();
+        testEmpty();
+        testBuffersFront();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffers_prefix);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_range.cpp b/src/boost/libs/beast/test/beast/core/buffers_range.cpp
new file mode 100644
index 000000000..12a5ece32
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_range.cpp
@@ -0,0 +1,95 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_range.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+class buffers_range_test : public beast::unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        is_const_buffer_sequence<
+            decltype(beast::buffers_range(
+                std::declval<net::const_buffer>()))>::value);
+
+    BOOST_STATIC_ASSERT(
+        is_const_buffer_sequence<
+            decltype(beast::buffers_range(
+                std::declval<net::mutable_buffer>()))>::value);
+
+    BOOST_STATIC_ASSERT(
+        ! net::is_mutable_buffer_sequence<
+            decltype(beast::buffers_range(
+                std::declval<net::const_buffer>()))>::value);
+
+    BOOST_STATIC_ASSERT(
+        net::is_mutable_buffer_sequence<
+            decltype(beast::buffers_range(
+                std::declval<net::mutable_buffer>()))>::value);
+
+    template <class BufferSequence>
+    std::size_t buffer_sequence_size (BufferSequence const& buffers)
+    {
+        std::size_t size = 0;
+        for (auto const buffer : buffers_range (buffers))
+            size += buffer.size();
+        return size;
+    }
+
+    template <class BufferSequence>
+    std::size_t buffer_sequence_size_ref (BufferSequence const& buffers)
+    {
+        std::size_t size = 0;
+        for (auto const buffer : buffers_range_ref (buffers))
+            size += buffer.size();
+        return size;
+    }
+
+    void
+    testJavadocs()
+    {
+        BEAST_EXPECT(&buffers_range_test::buffer_sequence_size<net::const_buffer>);
+        BEAST_EXPECT(&buffers_range_test::buffer_sequence_size_ref<net::const_buffer>);
+    }
+
+    void
+    testBufferSequence()
+    {
+        {
+            string_view s = "Hello, world!";
+            test_buffer_sequence(buffers_range(
+                net::const_buffer{s.data(), s.size()}));
+        }
+        {
+            char buf[13];
+            test_buffer_sequence(
+                buffers_range(net::mutable_buffer{
+                    buf, sizeof(buf)}));
+        }
+    }
+
+    void
+    run() override
+    {
+        testJavadocs();
+        testBufferSequence();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffers_range);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_suffix.cpp b/src/boost/libs/beast/test/beast/core/buffers_suffix.cpp
new file mode 100644
index 000000000..e08bfdf30
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_suffix.cpp
@@ -0,0 +1,167 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_suffix.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_cat.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/buffer.hpp>
+#include <string>
+
+namespace boost {
+namespace beast {
+
+class buffers_suffix_test : public beast::unit_test::suite
+{
+public:
+    void
+    testBufferSequence()
+    {
+        // mutable
+        {
+            char buf[13];
+            auto b = buffers_triple(buf, sizeof(buf));
+            buffers_suffix<decltype(b)> bs(b);
+            test_buffer_sequence(bs);
+        }
+
+        // const
+        {
+            string_view src = "Hello, world!";
+            std::array<net::const_buffer, 3> b{{
+                net::const_buffer(src.data(),     3),
+                net::const_buffer(src.data() + 3, 4),
+                net::const_buffer(src.data() + 7, 6) }};
+            buffers_suffix<decltype(b)> bs(b);
+            test_buffer_sequence(bs);
+        }
+    }
+
+    void
+    testSpecial()
+    {
+        // default construction
+        {
+            class test_buffer
+                : public net::const_buffer
+            {
+            public:
+                test_buffer()
+                    : net::const_buffer("\r\n", 2)
+                {
+                }
+            };
+
+            buffers_suffix<test_buffer> cb;
+            BEAST_EXPECT(buffers_to_string(cb) == "\r\n");
+            cb.consume(1);
+            BEAST_EXPECT(buffers_to_string(cb) == "\n");
+        }
+
+        // in-place init
+        {
+            buffers_suffix<buffers_cat_view<
+                net::const_buffer,
+                net::const_buffer>> cb(
+                    boost::in_place_init,
+                        net::const_buffer("\r", 1),
+                        net::const_buffer("\n", 1));
+            BEAST_EXPECT(buffers_to_string(cb) == "\r\n");
+        }
+
+        // empty sequence
+        {
+            buffers_suffix<net::mutable_buffer> cb(
+                net::mutable_buffer{});
+            BEAST_EXPECT(buffer_bytes(cb) == 0);
+            buffers_suffix<net::mutable_buffer> cb2(
+                net::mutable_buffer{});
+            BEAST_EXPECT(net::buffer_copy(cb2, cb) == 0);
+        }
+    }
+
+    template<class BufferSequence>
+    static
+    buffers_suffix<BufferSequence>
+    consumed_buffers(BufferSequence const& bs, std::size_t n)
+    {
+        buffers_suffix<BufferSequence> cb(bs);
+        cb.consume(n);
+        return cb;
+    }
+
+    template<class Buffers1, class Buffers2>
+    static
+    bool
+    eq(Buffers1 const& lhs, Buffers2 const& rhs)
+    {
+        return
+            buffers_to_string(lhs) ==
+            buffers_to_string(rhs);
+    }
+
+    void
+    testMatrix()
+    {
+        char buf[12];
+        std::string const s = "Hello, world";
+        BEAST_EXPECT(s.size() == sizeof(buf));
+        net::buffer_copy(net::buffer(buf), net::buffer(s));
+        BEAST_EXPECT(buffers_to_string(net::buffer(buf)) == s);
+        for(std::size_t i = 1; i < 4; ++i) {
+        for(std::size_t j = 1; j < 4; ++j) {
+        for(std::size_t x = 1; x < 4; ++x) {
+        for(std::size_t y = 1; y < 4; ++y) {
+        std::size_t k = sizeof(buf) - (i + j);
+        std::size_t z = sizeof(buf) - (x + y);
+        {
+            std::array<net::const_buffer, 3> bs{{
+                net::const_buffer{&buf[0], i},
+                net::const_buffer{&buf[i], j},
+                net::const_buffer{&buf[i+j], k}}};
+            buffers_suffix<decltype(bs)> cb(bs);
+            BEAST_EXPECT(buffers_to_string(cb) == s);
+            BEAST_EXPECT(buffer_bytes(cb) == s.size());
+            cb.consume(0);
+            BEAST_EXPECT(eq(cb, consumed_buffers(bs, 0)));
+            BEAST_EXPECT(buffers_to_string(cb) == s);
+            BEAST_EXPECT(buffer_bytes(cb) == s.size());
+            cb.consume(x);
+            BEAST_EXPECT(buffers_to_string(cb) == s.substr(x));
+            BEAST_EXPECT(eq(cb, consumed_buffers(bs, x)));
+            cb.consume(y);
+            BEAST_EXPECT(buffers_to_string(cb) == s.substr(x+y));
+            BEAST_EXPECT(eq(cb, consumed_buffers(bs, x+y)));
+            cb.consume(z);
+            BEAST_EXPECT(buffers_to_string(cb) == "");
+            BEAST_EXPECT(eq(cb, consumed_buffers(bs, x+y+z)));
+            cb.consume(1);
+            BEAST_EXPECT(buffers_to_string(cb) == "");
+            BEAST_EXPECT(eq(cb, consumed_buffers(bs, x+y+z)));
+        }
+        }}}}
+    }
+
+    void
+    run() override
+    {
+        testBufferSequence();
+        testSpecial();
+        testMatrix();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffers_suffix);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/buffers_to_string.cpp b/src/boost/libs/beast/test/beast/core/buffers_to_string.cpp
new file mode 100644
index 000000000..4df9422d3
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/buffers_to_string.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/buffers_to_string.hpp>
+
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+class buffers_to_string_test : public unit_test::suite
+{
+public:
+    void
+    run() override
+    {
+        multi_buffer b;
+        ostream(b) << "Hello, ";
+        BEAST_EXPECT(buffers_to_string(b.data()) == "Hello, ");
+        ostream(b) << "world!";
+        BEAST_EXPECT(buffers_to_string(b.data()) == "Hello, world!");
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,buffers_to_string);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/close_socket.cpp b/src/boost/libs/beast/test/beast/core/close_socket.cpp
new file mode 100644
index 000000000..01703c3f2
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/close_socket.cpp
@@ -0,0 +1,39 @@
+//
+// Copyright (c) 2018 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/close_socket.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/core/stream_traits.hpp>
+#include <boost/beast/core/string.hpp>
+
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/write.hpp>
+#include <utility>
+
+namespace boost {
+namespace beast {
+
+class close_socket_test : public beast::unit_test::suite
+{
+public:
+    void
+    run() override
+    {
+        testClose();
+        testJavadocs();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,close_socket);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/detect_ssl.cpp b/src/boost/libs/beast/test/beast/core/detect_ssl.cpp
new file mode 100644
index 000000000..7e457414e
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/detect_ssl.cpp
@@ -0,0 +1,181 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/detect_ssl.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/test/handler.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/core/exchange.hpp>
+namespace boost {
+namespace beast {
+
+class detect_ssl_test : public unit_test::suite
+{
+public:
+    void
+    testDetect()
+    {
+        auto const yes =
+            [](int n, string_view s)
+            {
+                BEAST_EXPECT(detail::is_tls_client_hello(
+                    net::const_buffer(s.data(), n)));
+            };
+
+        auto const no =
+            [](int n, string_view s)
+            {
+                BEAST_EXPECT(! detail::is_tls_client_hello(
+                    net::const_buffer(s.data(), n)));
+            };
+
+        auto const maybe =
+            [](int n, string_view s)
+            {
+                BEAST_EXPECT(boost::indeterminate(
+                    detail::is_tls_client_hello(
+                        net::const_buffer(s.data(), n))));
+            };
+
+        maybe(  0, "\x00\x00\x00\x00\x00\x00\x00\x00\x00");
+        no   (  1, "\x01\x00\x00\x00\x00\x00\x00\x00\x00");
+        maybe(  1, "\x16\x00\x00\x00\x00\x00\x00\x00\x00");
+        maybe(  4, "\x16\x00\x00\x00\x00\x00\x00\x00\x00");
+        no   (  5, "\x16\x00\x00\x00\x00\x00\x00\x00\x00");
+        maybe(  5, "\x16\x00\x00\x01\x00\x00\x00\x00\x00");
+        no   (  8, "\x16\x00\x00\x01\x00\x00\x00\x00\x00");
+        maybe(  8, "\x16\x00\x00\x01\x00\x01\x00\x00\x00");
+        no   (  9, "\x16\x00\x00\x01\x00\x01\x01\x00\x00");
+        yes  (  9, "\x16\x00\x00\x01\x00\x01\x00\x00\x00");
+    }
+
+    void
+    testRead()
+    {
+        net::io_context ioc;
+
+        // true
+
+        {
+            error_code ec;
+            flat_buffer b;
+            test::stream s1(ioc);
+            s1.append({"\x16\x00\x00\x01\x00\x01\x00\x00\x00", 9});
+            auto result = detect_ssl(s1, b, ec);
+            BEAST_EXPECT(result == true);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // true
+
+        {
+            error_code ec;
+            flat_buffer b;
+            test::stream s1(ioc);
+            auto s2 = test::connect(s1);
+            s1.append({"\x16\x00\x00\x01\x00\x01\x00\x00\x00", 9});
+            s2.close();
+            auto result = detect_ssl(s1, b, ec);
+            BEAST_EXPECT(result == true);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // false
+
+        {
+            error_code ec;
+            flat_buffer b;
+            test::stream s1(ioc);
+            s1.append({"\x16\x00\x00\x01\x00\x01\x01\x00\x00", 9});
+            auto result = detect_ssl(s1, b, ec);
+            BEAST_EXPECT(result == false);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+
+        // eof
+        {
+            error_code ec;
+            flat_buffer b;
+            test::stream s1(ioc);
+            auto s2 = test::connect(s1);
+            s1.append({"\x16\x00\x00\x01\x00", 5});
+            s2.close();
+            auto result = detect_ssl(s1, b, ec);
+            BEAST_EXPECT(result == false);
+            BEAST_EXPECT(ec);
+        }
+    }
+
+    void
+    testAsyncRead()
+    {
+        net::io_context ioc;
+
+        // true
+
+        {
+            flat_buffer b;
+            test::stream s1(ioc);
+            s1.append({"\x16\x00\x00\x01\x00\x01\x00\x00\x00", 9});
+            async_detect_ssl(s1, b, test::success_handler());
+            test::run(ioc);
+        }
+
+        // true
+
+        {
+            flat_buffer b;
+            test::stream s1(ioc);
+            auto s2 = test::connect(s1);
+            s1.append({"\x16\x00\x00\x01\x00\x01\x00\x00\x00", 9});
+            s2.close();
+            async_detect_ssl(s1, b, test::success_handler());
+            test::run(ioc);
+        }
+
+        // false
+
+        {
+            flat_buffer b;
+            test::stream s1(ioc);
+            s1.append({"\x16\x00\x00\x01\x00\x01\x01\x00\x00", 9});
+            async_detect_ssl(s1, b, test::success_handler());
+            test::run(ioc);
+        }
+
+        // eof
+        {
+            flat_buffer b;
+            test::stream s1(ioc);
+            auto s2 = test::connect(s1);
+            s1.append({"\x16\x00\x00\x01\x00", 5});
+            s2.close();
+            async_detect_ssl(s1, b,
+                test::fail_handler(net::error::eof));
+            test::run(ioc);
+        }
+    }
+
+    void
+    run() override
+    {
+        testDetect();
+        testRead();
+        testAsyncRead();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,detect_ssl);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/error.cpp b/src/boost/libs/beast/test/beast/core/error.cpp
new file mode 100644
index 000000000..40d9de9f3
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/error.cpp
@@ -0,0 +1,55 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/error.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <memory>
+
+namespace boost {
+namespace beast {
+
+class error_test : public unit_test::suite
+{
+public:
+    // no condition
+    void check(error e)
+    {
+        auto const ec = make_error_code(e);
+        ec.category().name();
+        BEAST_EXPECT(! ec.message().empty());
+    }
+
+    void check(condition c, error e)
+    {
+        {
+            auto const ec = make_error_code(e);
+            BEAST_EXPECT(ec.category().name() != nullptr);
+            BEAST_EXPECT(! ec.message().empty());
+            BEAST_EXPECT(ec == c);
+        }
+        {
+            auto ec = make_error_condition(c);
+            BEAST_EXPECT(ec.category().name() != nullptr);
+            BEAST_EXPECT(! ec.message().empty());
+            BEAST_EXPECT(ec == c);
+        }
+    }
+
+    void run() override
+    {
+        check(condition::timeout, error::timeout);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,error);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/file.cpp b/src/boost/libs/beast/test/beast/core/file.cpp
new file mode 100644
index 000000000..69d93cbf4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/file.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/file.hpp>
diff --git a/src/boost/libs/beast/test/beast/core/file_base.cpp b/src/boost/libs/beast/test/beast/core/file_base.cpp
new file mode 100644
index 000000000..f4b99e40b
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/file_base.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/file_base.hpp>
diff --git a/src/boost/libs/beast/test/beast/core/file_posix.cpp b/src/boost/libs/beast/test/beast/core/file_posix.cpp
new file mode 100644
index 000000000..23bfe8f05
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/file_posix.cpp
@@ -0,0 +1,40 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/file_posix.hpp>
+
+#if BOOST_BEAST_USE_POSIX_FILE
+
+#include "file_test.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+BOOST_STATIC_ASSERT(! std::is_copy_constructible<file_posix>::value);
+
+class file_posix_test
+    : public beast::unit_test::suite
+{
+public:
+    void
+    run()
+    {
+        test_file<file_posix>();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,file_posix);
+
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/file_stdio.cpp b/src/boost/libs/beast/test/beast/core/file_stdio.cpp
new file mode 100644
index 000000000..3af8400cc
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/file_stdio.cpp
@@ -0,0 +1,40 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/file_stdio.hpp>
+
+#include "file_test.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+BOOST_STATIC_ASSERT(! std::is_copy_constructible<file_stdio>::value);
+
+class file_stdio_test
+    : public beast::unit_test::suite
+{
+public:
+    void
+    run()
+    {
+#ifdef BOOST_MSVC
+        test_file<file_stdio, true>();
+#else
+        test_file<file_stdio>();
+#endif
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,file_stdio);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/file_test.hpp b/src/boost/libs/beast/test/beast/core/file_test.hpp
new file mode 100644
index 000000000..280bf7276
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/file_test.hpp
@@ -0,0 +1,413 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_FILE_TEST_HPP
+#define BOOST_BEAST_FILE_TEST_HPP
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/core/file_base.hpp>
+#include <boost/filesystem/path.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/fstream.hpp>
+#include <cstdio>
+#include <string>
+#include <type_traits>
+
+namespace boost {
+namespace beast {
+
+template<class File, bool append_unicode_suffix = false>
+void
+test_file()
+{
+    BOOST_STATIC_ASSERT(
+        is_file<File>::value);
+    BOOST_STATIC_ASSERT(
+        ! std::is_copy_constructible<File>::value);
+    BOOST_STATIC_ASSERT(
+        ! std::is_copy_assignable<File>::value);
+
+    namespace fs = boost::filesystem;
+
+    static constexpr
+#ifdef _WIN32
+    boost::winapi::WCHAR_ unicode_suffix[] = { 0xd83e, 0xdd84, 0x0000 }; // UTF-16-LE unicorn
+#else
+    char                  unicode_suffix[] = { '\xf0', '\x9f', '\xa6', '\x84', '\x00' }; // UTF-8 unicorn
+#endif
+
+    class temp_path
+    {
+        fs::path path_;
+        std::vector<char> utf8_str_;
+
+    public:
+        temp_path()
+            : path_(fs::unique_path())
+        {
+            if (append_unicode_suffix)
+                path_ += unicode_suffix;
+#ifdef _WIN32
+            constexpr auto cp = boost::winapi::CP_UTF8_;
+            constexpr auto flags = boost::winapi::WC_ERR_INVALID_CHARS_;
+            auto sz = boost::winapi::WideCharToMultiByte(
+                cp, flags, path_.c_str(), -1, nullptr, 0,
+                nullptr, nullptr);
+            BEAST_EXPECT(sz != 0);
+            utf8_str_.resize(sz);
+            auto ret = boost::winapi::WideCharToMultiByte(
+                cp, flags, path_.c_str(), -1,
+                utf8_str_.data(), sz,
+                nullptr, nullptr);
+            BEAST_EXPECT(ret == sz);
+#endif
+        }
+
+        operator fs::path const&()
+        {
+            return path_;
+        }
+
+        operator char const*()
+        {
+#ifdef _WIN32
+            return utf8_str_.data();
+#else
+            return path_.c_str();
+#endif
+        }
+    };
+
+    auto const create =
+        [](fs::path const& path)
+        {
+            BEAST_EXPECT(! fs::exists(path));
+            fs::ofstream out(path);
+            BEAST_EXPECT(out.is_open());
+        };
+
+    auto const remove =
+        [](fs::path const& path)
+        {
+            fs::remove(path);
+            BEAST_EXPECT(! fs::exists(path));
+        };
+
+    temp_path path;
+
+    // bad file descriptor
+    {
+        File f;
+        char buf[1];
+        BEAST_EXPECT(! f.is_open());
+        BEAST_EXPECT(! fs::exists(path));
+        {
+            error_code ec;
+            f.size(ec);
+            BEAST_EXPECT(ec == errc::bad_file_descriptor);
+        }
+        {
+            error_code ec;
+            f.pos(ec);
+            BEAST_EXPECT(ec == errc::bad_file_descriptor);
+        }
+        {
+            error_code ec;
+            f.seek(0, ec);
+            BEAST_EXPECT(ec == errc::bad_file_descriptor);
+        }
+        {
+            error_code ec;
+            f.read(buf, 0, ec);
+            BEAST_EXPECT(ec == errc::bad_file_descriptor);
+        }
+        {
+            error_code ec;
+            f.write(buf, 0, ec);
+            BEAST_EXPECT(ec == errc::bad_file_descriptor);
+        }
+    }
+
+    // file_mode::read
+    {
+        {
+            File f;
+            error_code ec;
+            create(path);
+            f.open(path, file_mode::read, ec);
+            BEAST_EXPECT(! ec);
+        }
+        remove(path);
+    }
+    
+    // file_mode::scan
+    {
+        {
+            File f;
+            error_code ec;
+            create(path);
+            f.open(path, file_mode::scan, ec);
+            BEAST_EXPECT(! ec);
+        }
+        remove(path);
+    }
+    
+    // file_mode::write
+    {
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(! fs::exists(path));
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(fs::exists(path));
+        }
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(fs::exists(path));
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(fs::exists(path));
+        }
+        remove(path);
+    }
+    
+    // file_mode::write_new
+    {
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(! fs::exists(path));
+            f.open(path, file_mode::write_new, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(fs::exists(path));
+        }
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(fs::exists(path));
+            f.open(path, file_mode::write_new, ec);
+            BEAST_EXPECT(ec);
+        }
+        remove(path);
+    }
+    
+    // file_mode::write_existing
+    {
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(! fs::exists(path));
+            f.open(path, file_mode::write_existing, ec);
+            BEAST_EXPECT(ec);
+            BEAST_EXPECT(! fs::exists(path));
+        }
+        {
+            File f;
+            error_code ec;
+            create(path);
+            BEAST_EXPECT(fs::exists(path));
+            f.open(path, file_mode::write_existing, ec);
+            BEAST_EXPECT(! ec);
+        }
+        remove(path);
+    }
+    
+    // file_mode::append
+    {
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(! fs::exists(path));
+            f.open(path, file_mode::append, ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(fs::exists(path));
+        }
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(fs::exists(path));
+            f.open(path, file_mode::append, ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(fs::exists(path));
+        }
+        remove(path);
+    }
+        
+    // file_mode::append_existing
+    {
+        {
+            File f;
+            error_code ec;
+            BEAST_EXPECT(! fs::exists(path));
+            f.open(path, file_mode::append_existing, ec);
+            BEAST_EXPECT(ec);
+            BEAST_EXPECT(! fs::exists(path));
+        }
+        remove(path);
+        {
+            File f;
+            error_code ec;
+            create(path);
+            BEAST_EXPECT(fs::exists(path));
+            f.open(path, file_mode::append_existing, ec);
+            BEAST_EXPECT(! ec);
+        }
+        remove(path);
+    }
+
+    // special members
+    {
+        {
+            File f1;
+            error_code ec;
+            f1.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(f1.is_open());
+
+            // move constructor
+            File f2(std::move(f1));
+            BEAST_EXPECT(! f1.is_open());
+            BEAST_EXPECT(f2.is_open());
+
+            // move assignment
+            File f3;
+            f3 = std::move(f2);
+            BEAST_EXPECT(! f2.is_open());
+            BEAST_EXPECT(f3.is_open());
+        }
+        remove(path);
+    }
+
+    // re-open
+    {
+        {
+            File f;
+            error_code ec;
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+        }
+        remove(path);
+    }
+
+    // re-assign
+    {
+        temp_path path2;
+        {
+            error_code ec;
+
+            File f1;
+            f1.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+
+            File f2;
+            f2.open(path2, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+
+            f2 = std::move(f1);
+            BEAST_EXPECT(! f1.is_open());
+            BEAST_EXPECT(f2.is_open());
+        }
+        remove(path);
+        remove(path2);
+    }
+
+    // self-move
+    {
+        {
+            File f;
+            error_code ec;
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+            f = std::move(f);
+            BEAST_EXPECT(f.is_open());
+        }
+        remove(path);
+    }
+
+    // native_handle
+    {
+        {
+            File f;
+            auto none = f.native_handle();
+            error_code ec;
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+            auto fd = f.native_handle();
+            BEAST_EXPECT(fd != none);
+            f.native_handle(none);
+            BEAST_EXPECT(! f.is_open());
+        }
+        remove(path);
+    }
+
+    // read and write
+    {
+        string_view const s = "Hello, world!";
+
+        // write
+        {
+            File f;
+            error_code ec;
+            f.open(path, file_mode::write, ec);
+            BEAST_EXPECT(! ec);
+
+            f.write(s.data(), s.size(), ec);
+            BEAST_EXPECT(! ec);
+
+            auto size = f.size(ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(size == s.size());
+
+            auto pos = f.pos(ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(pos == size);
+
+            f.close(ec);
+            BEAST_EXPECT(! ec);
+        }
+
+        // read
+        {
+            File f;
+            error_code ec;
+            f.open(path, file_mode::read, ec);
+            BEAST_EXPECT(! ec);
+
+            std::string buf;
+            buf.resize(s.size());
+            f.read(&buf[0], buf.size(), ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(buf == s);
+
+            f.seek(1, ec);
+            BEAST_EXPECT(! ec);
+            buf.resize(3);
+            f.read(&buf[0], buf.size(), ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(buf == "ell");
+
+            auto pos = f.pos(ec);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(pos == 4);
+        }
+        remove(path);
+    }
+
+    BEAST_EXPECT(! fs::exists(path));
+}
+
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/file_win32.cpp b/src/boost/libs/beast/test/beast/core/file_win32.cpp
new file mode 100644
index 000000000..f0f2b4ac1
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/file_win32.cpp
@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/file_win32.hpp>
+
+#if BOOST_BEAST_USE_WIN32_FILE
+
+#include "file_test.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+class file_win32_test
+    : public beast::unit_test::suite
+{
+public:
+    void
+    run()
+    {
+        test_file<file_win32, true>();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,file_win32);
+
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/flat_buffer.cpp b/src/boost/libs/beast/test/beast/core/flat_buffer.cpp
new file mode 100644
index 000000000..df7b06a98
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/flat_buffer.cpp
@@ -0,0 +1,438 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/flat_buffer.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/test/test_allocator.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <algorithm>
+#include <cctype>
+
+namespace boost {
+namespace beast {
+
+class flat_buffer_test : public beast::unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        is_mutable_dynamic_buffer<flat_buffer>::value);
+
+    void
+    testDynamicBuffer()
+    {
+        flat_buffer b(30);
+        BEAST_EXPECT(b.max_size() == 30);
+        test_dynamic_buffer(b);
+    }
+
+    void
+    testSpecialMembers()
+    {
+        using namespace test;
+
+        using a_t = test::test_allocator<char,
+            true, true, true, true, true>;
+
+        // Equal == false
+        using a_neq_t = test::test_allocator<char,
+            false, true, true, true, true>;
+
+        // construction
+        {
+            {
+                flat_buffer b;
+                BEAST_EXPECT(b.capacity() == 0);
+            }
+            {
+                flat_buffer b{500};
+                BEAST_EXPECT(b.capacity() == 0);
+                BEAST_EXPECT(b.max_size() == 500);
+            }
+            {
+                a_neq_t a1;
+                basic_flat_buffer<a_neq_t> b{a1};
+                BEAST_EXPECT(b.get_allocator() == a1);
+                a_neq_t a2;
+                BEAST_EXPECT(b.get_allocator() != a2);
+            }
+            {
+                a_neq_t a;
+                basic_flat_buffer<a_neq_t> b{500, a};
+                BEAST_EXPECT(b.capacity() == 0);
+                BEAST_EXPECT(b.max_size() == 500);
+            }
+        }
+
+        // move construction
+        {
+            {
+                basic_flat_buffer<a_t> b1{30};
+                BEAST_EXPECT(b1.get_allocator()->nmove == 0);
+                ostream(b1) << "Hello";
+                basic_flat_buffer<a_t> b2{std::move(b1)};
+                BEAST_EXPECT(b2.get_allocator()->nmove == 1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                BEAST_EXPECT(b1.max_size() == b2.max_size());
+            }
+            {
+                basic_flat_buffer<a_t> b1{30};
+                ostream(b1) << "Hello";
+                a_t a;
+                basic_flat_buffer<a_t> b2{std::move(b1), a};
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                BEAST_EXPECT(b1.max_size() == b2.max_size());
+            }
+            {
+                basic_flat_buffer<a_neq_t> b1{30};
+                ostream(b1) << "Hello";
+                a_neq_t a;
+                basic_flat_buffer<a_neq_t> b2{std::move(b1), a};
+                BEAST_EXPECT(b1.size() != 0);
+                BEAST_EXPECT(b1.capacity() != 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                BEAST_EXPECT(b1.max_size() == b2.max_size());
+            }
+        }
+
+        // copy construction
+        {
+            basic_flat_buffer<a_t> b1;
+            ostream(b1) << "Hello";
+            basic_flat_buffer<a_t> b2(b1);
+            BEAST_EXPECT(b1.get_allocator() == b2.get_allocator());
+            BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+            BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+        }
+        {
+            basic_flat_buffer<a_neq_t> b1;
+            ostream(b1) << "Hello";
+            a_neq_t a;
+            basic_flat_buffer<a_neq_t> b2(b1, a);
+            BEAST_EXPECT(b1.get_allocator() != b2.get_allocator());
+            BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+            BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+        }
+        {
+            basic_flat_buffer<a_t> b1;
+            ostream(b1) << "Hello";
+            basic_flat_buffer<a_neq_t> b2(b1);
+            BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+            BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+        }
+        {
+            basic_flat_buffer<a_neq_t> b1;
+            ostream(b1) << "Hello";
+            a_t a;
+            basic_flat_buffer<a_t> b2(b1, a);
+            BEAST_EXPECT(b2.get_allocator() == a);
+            BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+            BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+        }
+        {
+            flat_buffer b1;
+            ostream(b1) << "Hello";
+            basic_flat_buffer<a_t> b2;
+            b2.reserve(1);
+            BEAST_EXPECT(b2.capacity() == 1);
+            b2 = b1;
+            BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            BEAST_EXPECT(b2.capacity() == b2.size());
+        }
+
+        // move assignment
+        {
+            {
+                flat_buffer b1;
+                ostream(b1) << "Hello";
+                flat_buffer b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                using na_t = test::test_allocator<char,
+                    true, true, false, true, true>;
+                basic_flat_buffer<na_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<na_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.get_allocator() == b2.get_allocator());
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                using na_t = test::test_allocator<char,
+                    false, true, false, true, true>;
+                basic_flat_buffer<na_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<na_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.get_allocator() != b2.get_allocator());
+                BEAST_EXPECT(b1.size() != 0);
+                BEAST_EXPECT(b1.capacity() != 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_move_assignment : true
+                using pocma_t = test::test_allocator<char,
+                    true, true, true, true, true>;
+                basic_flat_buffer<pocma_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<pocma_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_move_assignment : false
+                using pocma_t = test::test_allocator<char,
+                    true, true, false, true, true>;
+                basic_flat_buffer<pocma_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<pocma_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+        }
+
+        // copy assignment
+        {
+            {
+                flat_buffer b1;
+                ostream(b1) << "Hello";
+                flat_buffer b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                basic_flat_buffer<a_t> b3;
+                b3 = b2;
+                BEAST_EXPECT(buffers_to_string(b3.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_copy_assignment : true
+                using pocca_t = test::test_allocator<char,
+                    true, true, true, true, true>;
+                basic_flat_buffer<pocca_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<pocca_t> b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_copy_assignment : false
+                using pocca_t = test::test_allocator<char,
+                    true, false, true, true, true>;
+                basic_flat_buffer<pocca_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<pocca_t> b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+        }
+
+        // operations
+        {
+            string_view const s = "Hello, world!";
+            flat_buffer b1{64};
+            BEAST_EXPECT(b1.size() == 0);
+            BEAST_EXPECT(b1.max_size() == 64);
+            BEAST_EXPECT(b1.capacity() == 0);
+            ostream(b1) << s;
+            BEAST_EXPECT(buffers_to_string(b1.data()) == s);
+            {
+                flat_buffer b2{b1};
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                b2.consume(7);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+            }
+            {
+                flat_buffer b2{32};
+                BEAST_EXPECT(b2.max_size() == 32);
+                b2 = b1;
+                BEAST_EXPECT(b2.max_size() == b1.max_size());
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                b2.consume(7);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+            }
+        }
+
+        // cause memmove
+        {
+            flat_buffer b{20};
+            ostream(b) << "12345";
+            b.consume(3);
+            ostream(b) << "67890123";
+            BEAST_EXPECT(buffers_to_string(b.data()) == "4567890123");
+        }
+
+        // max_size
+        {
+            flat_buffer b{10};
+            BEAST_EXPECT(b.max_size() == 10);
+            b.max_size(32);
+            BEAST_EXPECT(b.max_size() == 32);
+        }
+
+        // allocator max_size
+        {
+            basic_flat_buffer<a_t> b;
+            auto a = b.get_allocator();
+            BOOST_STATIC_ASSERT(
+                ! std::is_const<decltype(a)>::value);
+            a->max_size = 30;
+            try
+            {
+                b.prepare(1000);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        // read_size
+        {
+            flat_buffer b{10};
+            BEAST_EXPECT(read_size(b, 512) == 10);
+            b.prepare(4);
+            b.commit(4);
+            BEAST_EXPECT(read_size(b, 512) == 6);
+            b.consume(2);
+            BEAST_EXPECT(read_size(b, 512) == 8);
+            b.prepare(8);
+            b.commit(8);
+            BEAST_EXPECT(read_size(b, 512) == 0);
+        }
+
+        // swap
+        {
+            {
+                basic_flat_buffer<a_neq_t> b1;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<a_neq_t> b2;
+                BEAST_EXPECT(b1.get_allocator() != b2.get_allocator());
+                swap(b1, b2);
+                BEAST_EXPECT(b1.get_allocator() != b2.get_allocator());
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                using na_t = test::test_allocator<char,
+                    true, true, true, false, true>;
+                na_t a1;
+                basic_flat_buffer<na_t> b1{a1};
+                na_t a2;
+                ostream(b1) << "Hello";
+                basic_flat_buffer<na_t> b2{a2};
+                BEAST_EXPECT(b1.get_allocator() == a1);
+                BEAST_EXPECT(b2.get_allocator() == a2);
+                swap(b1, b2);
+                BEAST_EXPECT(b1.get_allocator() == b2.get_allocator());
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+        }
+
+        // prepare
+        {
+            flat_buffer b{100};
+            b.prepare(10);
+            b.commit(10);
+            b.prepare(5);
+            BEAST_EXPECT(b.capacity() >= 5);
+            try
+            {
+                b.prepare(1000);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        // reserve
+        {
+            flat_buffer b;
+            BEAST_EXPECT(b.capacity() == 0);
+            b.reserve(50);
+            BEAST_EXPECT(b.capacity() == 50);
+            b.prepare(20);
+            b.commit(20);
+            b.reserve(50);
+            BEAST_EXPECT(b.capacity() == 50);
+
+            b.max_size(b.capacity());
+            b.reserve(b.max_size() + 20);
+            BEAST_EXPECT(b.capacity() == 70);
+            BEAST_EXPECT(b.max_size() == 70);
+        }
+
+        // shrink to fit
+        {
+            flat_buffer b;
+            BEAST_EXPECT(b.capacity() == 0);
+            b.prepare(50);
+            BEAST_EXPECT(b.capacity() == 50);
+            b.commit(50);
+            BEAST_EXPECT(b.capacity() == 50);
+            b.prepare(75);
+            BEAST_EXPECT(b.capacity() >= 125);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.capacity() == b.size());
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.capacity() == b.size());
+            b.consume(b.size());
+            BEAST_EXPECT(b.size() == 0);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.capacity() == 0);
+        }
+
+        // clear
+        {
+            flat_buffer b;
+            BEAST_EXPECT(b.capacity() == 0);
+            b.prepare(50);
+            b.commit(50);
+            BEAST_EXPECT(b.size() == 50);
+            BEAST_EXPECT(b.capacity() == 50);
+            b.clear();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 50);
+        }
+    }
+
+    void
+    run() override
+    {
+        testDynamicBuffer();
+        testSpecialMembers();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,flat_buffer);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/flat_static_buffer.cpp b/src/boost/libs/beast/test/beast/core/flat_static_buffer.cpp
new file mode 100644
index 000000000..a74eaad9a
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/flat_static_buffer.cpp
@@ -0,0 +1,139 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/flat_static_buffer.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/buffers_iterator.hpp>
+#include <algorithm>
+#include <cctype>
+#include <string>
+
+namespace boost {
+namespace beast {
+
+class flat_static_buffer_test : public beast::unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        is_mutable_dynamic_buffer<
+            flat_static_buffer<13>>::value);
+
+    void
+    testDynamicBuffer()
+    {
+        test_dynamic_buffer(flat_static_buffer<13>{});
+    }
+
+    void
+    testMembers()
+    {
+        string_view const s = "Hello, world!";
+        
+        // flat_static_buffer_base
+        {
+            char buf[64];
+            flat_static_buffer_base b{buf, sizeof(buf)};
+            ostream(b) << s;
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+            b.clear();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(buffer_bytes(b.data()) == 0);
+        }
+
+        // flat_static_buffer
+        {
+            flat_static_buffer<64> b1;
+            BEAST_EXPECT(b1.size() == 0);
+            BEAST_EXPECT(b1.max_size() == 64);
+            BEAST_EXPECT(b1.capacity() == 64);
+            ostream(b1) << s;
+            BEAST_EXPECT(buffers_to_string(b1.data()) == s);
+            {
+                flat_static_buffer<64> b2{b1};
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                b2.consume(7);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+            }
+            {
+                flat_static_buffer<64> b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                b2.consume(7);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+            }
+        }
+
+        // cause memmove
+        {
+            flat_static_buffer<10> b;
+            ostream(b) << "12345";
+            b.consume(3);
+            ostream(b) << "67890123";
+            BEAST_EXPECT(buffers_to_string(b.data()) == "4567890123");
+            try
+            {
+                b.prepare(1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        // read_size
+        {
+            flat_static_buffer<10> b;
+            BEAST_EXPECT(read_size(b, 512) == 10);
+            b.prepare(4);
+            b.commit(4);
+            BEAST_EXPECT(read_size(b, 512) == 6);
+            b.consume(2);
+            BEAST_EXPECT(read_size(b, 512) == 8);
+            b.prepare(8);
+            b.commit(8);
+            BEAST_EXPECT(read_size(b, 512) == 0);
+        }
+
+        // base
+        {
+            flat_static_buffer<10> b;
+            [&](flat_static_buffer_base& base)
+            {
+                BEAST_EXPECT(base.max_size() == b.capacity());
+            }
+            (b.base());
+
+            [&](flat_static_buffer_base const& base)
+            {
+                BEAST_EXPECT(base.max_size() == b.capacity());
+            }
+            (b.base());
+        }
+    }
+
+    void run() override
+    {
+        testDynamicBuffer();
+        testMembers();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,flat_static_buffer);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/flat_stream.cpp b/src/boost/libs/beast/test/beast/core/flat_stream.cpp
new file mode 100644
index 000000000..d2ce65faa
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/flat_stream.cpp
@@ -0,0 +1,222 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/flat_stream.hpp>
+
+#include "stream_tests.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/core/role.hpp>
+#include <initializer_list>
+#include <vector>
+
+namespace boost {
+namespace beast {
+
+class flat_stream_test : public unit_test::suite
+{
+public:
+    void
+    testMembers()
+    {
+        net::io_context ioc;
+
+        test_sync_stream<flat_stream<test::stream>>();
+
+        test_async_stream<flat_stream<test::stream>>();
+
+        // read/write
+
+        {
+            error_code ec;
+            flat_stream<test::stream> s(ioc);
+            {
+                // VFALCO Hack to make test stream code = eof
+                test::stream ts(ioc);
+                s.next_layer().connect(ts);
+            }
+            char buf[1];
+            net::mutable_buffer m1 = net::buffer(buf);
+
+            BEAST_EXPECT(s.read_some(net::mutable_buffer{}) == 0);
+            BEAST_EXPECT(s.read_some(net::mutable_buffer{}, ec) == 0);
+            BEAST_EXPECTS(! ec, ec.message());
+
+            try
+            {
+                s.read_some(m1);
+                BEAST_FAIL();
+            }
+            catch(std::exception const&)
+            {
+                BEAST_PASS();
+            }
+            catch(...)
+            {
+                BEAST_FAIL();
+            }
+
+            BEAST_EXPECT(s.write_some(net::const_buffer{}) == 0);
+            BEAST_EXPECT(s.write_some(net::const_buffer{}, ec) == 0);
+            BEAST_EXPECTS(! ec, ec.message());
+
+            try
+            {
+                s.write_some(m1);
+                BEAST_FAIL();
+            }
+            catch(std::exception const&)
+            {
+                BEAST_PASS();
+            }
+            catch(...)
+            {
+                BEAST_FAIL();
+            }
+
+            bool invoked;
+
+            invoked = false;
+            s.async_read_some(net::mutable_buffer{},
+                [&](error_code ec, std::size_t)
+                {
+                    invoked = true;
+                    BEAST_EXPECTS(! ec, ec.message());
+                });
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(invoked);
+
+            invoked = false;
+            s.async_write_some(net::const_buffer{},
+                [&](error_code ec, std::size_t)
+                {
+                    invoked = true;
+                    BEAST_EXPECTS(! ec, ec.message());
+                });
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(invoked);
+        }
+
+        // stack_write_some
+
+        {
+            char b[detail::flat_stream_base::max_size];
+            std::array<net::const_buffer, 3> bs;
+            bs[0] = net::const_buffer(b, 100);
+            bs[1] = net::const_buffer(b + 100, 200);
+            bs[2] = net::const_buffer(b + 100 + 200, 300);
+            BEAST_EXPECT(buffer_bytes(bs) <=
+                detail::flat_stream_base::max_stack);
+            flat_stream<test::stream> s(ioc);
+            error_code ec;
+            s.write_some(bs, ec);
+        }
+
+        // write_some
+
+        {
+            char b[detail::flat_stream_base::max_size];
+            std::array<net::const_buffer, 2> bs;
+            bs[0] = net::const_buffer(b,
+                detail::flat_stream_base::max_stack);
+            bs[1] = net::const_buffer(b + bs[0].size(), 1024);
+            BEAST_EXPECT(buffer_bytes(bs) <=
+                detail::flat_stream_base::max_size);
+            flat_stream<test::stream> s(ioc);
+            error_code ec;
+            s.write_some(bs, ec);
+        }
+
+        // async_write_some
+
+        {
+            char b[detail::flat_stream_base::max_size];
+            std::array<net::const_buffer, 2> bs;
+            bs[0] = net::const_buffer(b,
+                detail::flat_stream_base::max_stack);
+            bs[1] = net::const_buffer(b + bs[0].size(), 1024);
+            BEAST_EXPECT(buffer_bytes(bs) <=
+                detail::flat_stream_base::max_size);
+            flat_stream<test::stream> s(ioc);
+            s.async_write_some(bs,
+                [](error_code, std::size_t)
+                {
+                });
+        }
+
+        // teardown
+
+        {
+            test::stream ts(ioc);
+            flat_stream<test::stream> s(ioc);
+            ts.connect(s.next_layer());
+            error_code ec;
+            teardown(role_type::client, s, ec);
+        }
+
+        {
+            test::stream ts(ioc);
+            flat_stream<test::stream> s(ioc);
+            ts.connect(s.next_layer());
+            async_teardown(role_type::client, s,
+                [](error_code)
+                {
+                });
+        }
+    }
+
+    void
+    testSplit()
+    {
+        auto const check =
+            [&](
+                std::initializer_list<int> v0,
+                std::size_t limit,
+                unsigned long count,
+                bool copy)
+            {
+                std::vector<net::const_buffer> v;
+                v.reserve(v0.size());
+                for(auto const n : v0)
+                    v.emplace_back("", n);
+                auto const result =
+                    boost::beast::detail::flat_stream_base::flatten(v, limit);
+                BEAST_EXPECT(result.size == count);
+                BEAST_EXPECT(result.flatten == copy);
+                return result;
+            };
+        check({},           1,    0, false);
+        check({1,2},        1,    1, false);
+        check({1,2},        2,    1, false);
+        check({1,2},        3,    3, true);
+        check({1,2},        4,    3, true);
+        check({1,2,3},      1,    1, false);
+        check({1,2,3},      2,    1, false);
+        check({1,2,3},      3,    3, true);
+        check({1,2,3},      4,    3, true);
+        check({1,2,3},      7,    6, true);
+        check({1,2,3,4},    3,    3, true);
+    }
+
+    void
+    run() override
+    {
+        testMembers();
+        testSplit();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,flat_stream);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/make_printable.cpp b/src/boost/libs/beast/test/beast/core/make_printable.cpp
new file mode 100644
index 000000000..0b081cd43
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/make_printable.cpp
@@ -0,0 +1,66 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/make_printable.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <iostream>
+#include <sstream>
+
+#include "test_buffer.hpp"
+
+namespace boost {
+namespace beast {
+
+class make_printable_test : public beast::unit_test::suite
+{
+public:
+    template <class ConstBufferSequence>
+    void
+    print (ConstBufferSequence const& buffers)
+    {
+        std::cout <<
+            "Buffer size: " << buffer_bytes(buffers) << " bytes\n"
+            "Buffer data: '" << make_printable(buffers) << "'\n";
+    }
+
+    void
+    testJavadoc()
+    {
+        BEAST_EXPECT(&make_printable_test::print<buffers_triple>);
+    }
+
+    void
+    testMakePrintable()
+    {
+        char buf[13];
+        buffers_triple b(buf, sizeof(buf));
+        string_view src = "Hello, world!";
+        BEAST_EXPECT(src.size() == sizeof(buf));
+        net::buffer_copy(b,
+            net::const_buffer(src.data(), src.size()));
+        std::ostringstream ss;
+        ss << make_printable(b);
+        BEAST_EXPECT(ss.str() == src);
+    }
+
+    void
+    run() override
+    {
+        testJavadoc();
+        testMakePrintable();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,make_printable);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/make_strand.cpp b/src/boost/libs/beast/test/beast/core/make_strand.cpp
new file mode 100644
index 000000000..b356c8ebf
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/make_strand.cpp
@@ -0,0 +1,49 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/net::make_strand.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/executor.hpp>
+#include <boost/asio/io_context.hpp>
+
+namespace boost {
+namespace beast {
+
+class make_strand_test : public beast::unit_test::suite
+{
+public:
+    void
+    testFunction()
+    {
+        net::io_context ioc;
+        net::make_strand(ioc);
+        net::make_strand(ioc.get_executor());
+        net::make_strand(net::make_strand(ioc));
+
+        net::executor ex(ioc.get_executor());
+        net::make_strand(ex);
+
+        // this *should-not* compile
+        //net::make_strand(ex.context());
+    }
+
+    void
+    run() override
+    {
+        testFunction();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,net::make_strand);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/multi_buffer.cpp b/src/boost/libs/beast/test/beast/core/multi_buffer.cpp
new file mode 100644
index 000000000..7d6b90b46
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/multi_buffer.cpp
@@ -0,0 +1,830 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/multi_buffer.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/test/test_allocator.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/buffers_iterator.hpp>
+#include <algorithm>
+#include <atomic>
+#include <cctype>
+#include <memory>
+#include <string>
+
+namespace boost {
+namespace beast {
+
+class multi_buffer_test : public beast::unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        is_mutable_dynamic_buffer<multi_buffer>::value);
+
+#if ! BOOST_WORKAROUND(BOOST_LIBSTDCXX_VERSION, < 50000) && \
+    ! BOOST_WORKAROUND(BOOST_MSVC, < 1910)
+//    BOOST_STATIC_ASSERT(std::is_trivially_copyable<
+//        multi_buffer::const_buffers_type>::value);
+//    BOOST_STATIC_ASSERT(std::is_trivially_copyable<
+//        multi_buffer::mutable_data_type>::value);
+#endif
+
+    template<class Alloc1, class Alloc2>
+    static
+    bool
+    eq( basic_multi_buffer<Alloc1> const& mb1,
+        basic_multi_buffer<Alloc2> const& mb2)
+    {
+        return buffers_to_string(mb1.data()) ==
+            buffers_to_string(mb2.data());
+    }
+
+    void
+    testShrinkToFit()
+    {
+        // empty list
+
+        {
+            multi_buffer b;
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 0);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 0);
+        }
+
+        // zero readable bytes
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 0);
+        }
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(32);
+            b.consume(32);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 0);
+        }
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(512);
+            b.prepare(512);
+            b.clear();
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 0);
+        }
+
+        // unused list
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(512);
+            b.prepare(512);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 512);
+            BEAST_EXPECT(b.capacity() == 512);
+        }
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(512);
+            b.prepare(512);
+            b.prepare(1024);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 512);
+            BEAST_EXPECT(b.capacity() == 512);
+        }
+
+        // partial last buffer
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(512);
+            b.prepare(512);
+            b.commit(88);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 600);
+            BEAST_EXPECT(b.capacity() == 600);
+        }
+
+        // shrink front of first buffer
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(512);
+            b.consume(12);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 500);
+            BEAST_EXPECT(b.capacity() == 500);
+        }
+
+        // shrink ends of first buffer
+
+        {
+            multi_buffer b;
+            b.prepare(512);
+            b.commit(500);
+            b.consume(100);
+            b.shrink_to_fit();
+            BEAST_EXPECT(b.size() == 400);
+            BEAST_EXPECT(b.capacity() == 400);
+        }
+    }
+
+    void
+    testDynamicBuffer()
+    {
+        multi_buffer b(30);
+        BEAST_EXPECT(b.max_size() == 30);
+        test_dynamic_buffer(b);
+    }
+
+    void
+    testMembers()
+    {
+        using namespace test;
+
+        // compare equal
+        using equal_t = test::test_allocator<char,
+            true, true, true, true, true>;
+
+        // compare not equal
+        using unequal_t = test::test_allocator<char,
+            false, true, true, true, true>;
+
+        // construction
+        {
+            {
+                multi_buffer b;
+                BEAST_EXPECT(b.capacity() == 0);
+            }
+            {
+                multi_buffer b{500};
+                BEAST_EXPECT(b.capacity() == 0);
+                BEAST_EXPECT(b.max_size() == 500);
+            }
+            {
+                unequal_t a1;
+                basic_multi_buffer<unequal_t> b{a1};
+                BEAST_EXPECT(b.get_allocator() == a1);
+                BEAST_EXPECT(b.get_allocator() != unequal_t{});
+            }
+            {
+                unequal_t a1;
+                basic_multi_buffer<unequal_t> b{500, a1};
+                BEAST_EXPECT(b.capacity() == 0);
+                BEAST_EXPECT(b.max_size() == 500);
+                BEAST_EXPECT(b.get_allocator() == a1);
+                BEAST_EXPECT(b.get_allocator() != unequal_t{});
+            }
+        }
+
+        // move construction
+        {
+            {
+                basic_multi_buffer<equal_t> b1{30};
+                BEAST_EXPECT(b1.get_allocator()->nmove == 0);
+                ostream(b1) << "Hello";
+                basic_multi_buffer<equal_t> b2{std::move(b1)};
+                BEAST_EXPECT(b2.get_allocator()->nmove == 1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                BEAST_EXPECT(b1.max_size() == b2.max_size());
+            }
+            // allocators equal
+            {
+                basic_multi_buffer<equal_t> b1{30};
+                ostream(b1) << "Hello";
+                equal_t a;
+                basic_multi_buffer<equal_t> b2{std::move(b1), a};
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                BEAST_EXPECT(b1.max_size() == b2.max_size());
+            }
+            {
+                // allocators unequal
+                basic_multi_buffer<unequal_t> b1{30};
+                ostream(b1) << "Hello";
+                unequal_t a;
+                basic_multi_buffer<unequal_t> b2{std::move(b1), a};
+                BEAST_EXPECT(b1.size() != 0);
+                BEAST_EXPECT(b1.capacity() != 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                BEAST_EXPECT(b1.max_size() == b2.max_size());
+            }
+        }
+
+        // copy construction
+        {
+            {
+                basic_multi_buffer<equal_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<equal_t> b2{b1};
+                BEAST_EXPECT(b1.get_allocator() == b2.get_allocator());
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                basic_multi_buffer<unequal_t> b1;
+                ostream(b1) << "Hello";
+                unequal_t a;
+                basic_multi_buffer<unequal_t> b2(b1, a);
+                BEAST_EXPECT(b1.get_allocator() != b2.get_allocator());
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                basic_multi_buffer<equal_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<unequal_t> b2(b1);
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                basic_multi_buffer<unequal_t> b1;
+                ostream(b1) << "Hello";
+                equal_t a;
+                basic_multi_buffer<equal_t> b2(b1, a);
+                BEAST_EXPECT(b2.get_allocator() == a);
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+        }
+
+        // move assignment
+        {
+            {
+                multi_buffer b1;
+                ostream(b1) << "Hello";
+                multi_buffer b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.capacity() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                using na_t = test::test_allocator<char,
+                    false, true, false, true, true>;
+                basic_multi_buffer<na_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<na_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.get_allocator() != b2.get_allocator());
+                BEAST_EXPECT(b1.size() != 0);
+                BEAST_EXPECT(b1.capacity() != 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_move_assignment : true
+                using pocma_t = test::test_allocator<char,
+                    true, true, true, true, true>;
+                basic_multi_buffer<pocma_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<pocma_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_move_assignment : false
+                using pocma_t = test::test_allocator<char,
+                    true, true, false, true, true>;
+                basic_multi_buffer<pocma_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<pocma_t> b2;
+                b2 = std::move(b1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+        }
+
+        // copy assignment
+        {
+            {
+                multi_buffer b1;
+                ostream(b1) << "Hello";
+                multi_buffer b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                basic_multi_buffer<equal_t> b3;
+                b3 = b2;
+                BEAST_EXPECT(buffers_to_string(b3.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_copy_assignment : true
+                using pocca_t = test::test_allocator<char,
+                    true, true, true, true, true>;
+                basic_multi_buffer<pocca_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<pocca_t> b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+            {
+                // propagate_on_container_copy_assignment : false
+                using pocca_t = test::test_allocator<char,
+                    true, false, true, true, true>;
+                basic_multi_buffer<pocca_t> b1;
+                ostream(b1) << "Hello";
+                basic_multi_buffer<pocca_t> b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+            }
+        }
+
+        // max_size
+        {
+            multi_buffer b{10};
+            BEAST_EXPECT(b.max_size() == 10);
+            b.max_size(32);
+            BEAST_EXPECT(b.max_size() == 32);
+        }
+
+        // allocator max_size
+        {
+            basic_multi_buffer<equal_t> b;
+            auto a = b.get_allocator();
+            BOOST_STATIC_ASSERT(
+                ! std::is_const<decltype(a)>::value);
+            a->max_size = 30;
+            try
+            {
+                b.prepare(1000);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                b.reserve(1000);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+
+        // prepare
+        {
+            {
+                multi_buffer b{100};
+                try
+                {
+                    b.prepare(b.max_size() + 1);
+                    fail("", __FILE__, __LINE__);
+                }
+                catch(std::length_error const&)
+                {
+                    pass();
+                }
+            }
+            {
+                string_view const s = "Hello, world!";
+                multi_buffer b1{64};
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(b1.max_size() == 64);
+                BEAST_EXPECT(b1.capacity() == 0);
+                ostream(b1) << s;
+                BEAST_EXPECT(buffers_to_string(b1.data()) == s);
+                {
+                    multi_buffer b2{b1};
+                    BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                    b2.consume(7);
+                    BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+                }
+                {
+                    multi_buffer b2{64};
+                    b2 = b1;
+                    BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                    b2.consume(7);
+                    BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+                }
+            }
+            {
+                multi_buffer b;
+                b.prepare(1000);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.commit(1);
+                BEAST_EXPECT(b.size() == 1);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.prepare(1000);
+                BEAST_EXPECT(b.size() == 1);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.prepare(1500);
+                BEAST_EXPECT(b.capacity() >= 1000);
+            }
+            {
+                multi_buffer b;
+                b.prepare(1000);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.commit(1);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.prepare(1000);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.prepare(2000);
+                BEAST_EXPECT(b.capacity() >= 2000);
+                b.commit(2);
+            }
+            {
+                multi_buffer b;
+                b.prepare(1000);
+                BEAST_EXPECT(b.capacity() >= 1000);
+                b.prepare(2000);
+                BEAST_EXPECT(b.capacity() >= 2000);
+                b.prepare(4000);
+                BEAST_EXPECT(b.capacity() >= 4000);
+                b.prepare(50);
+                BEAST_EXPECT(b.capacity() >= 50);
+            }
+        }
+
+        // commit
+        {
+            {
+                multi_buffer b;
+                b.prepare(16);
+                b.commit(16);
+                auto const n =
+                    b.capacity() - b.size();
+                b.prepare(n);
+                b.commit(n);
+                auto const size =
+                    b.size();
+                auto const capacity =
+                    b.capacity();
+                b.commit(1);
+                BEAST_EXPECT(b.size() == size);
+                BEAST_EXPECT(b.capacity() == capacity);
+            }
+
+            multi_buffer b;
+            b.prepare(1000);
+            BEAST_EXPECT(b.capacity() >= 1000);
+            b.commit(1000);
+            BEAST_EXPECT(b.size() == 1000);
+            BEAST_EXPECT(b.capacity() >= 1000);
+            b.consume(1000);
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 0);
+            b.prepare(1000);
+            b.commit(650);
+            BEAST_EXPECT(b.size() == 650);
+            BEAST_EXPECT(b.capacity() >= 1000);
+            b.prepare(1000);
+            BEAST_EXPECT(b.capacity() >= 1650);
+            b.commit(100);
+            BEAST_EXPECT(b.size() == 750);
+            BEAST_EXPECT(b.capacity() >= 1000);
+            b.prepare(1000);
+            BEAST_EXPECT(b.capacity() >= 2000);
+            b.commit(500);
+        }
+
+        // consume
+        {
+            multi_buffer b;
+            b.prepare(1000);
+            BEAST_EXPECT(b.capacity() >= 1000);
+            b.commit(1000);
+            BEAST_EXPECT(b.size() == 1000);
+            BEAST_EXPECT(b.capacity() >= 1000);
+            b.prepare(1000);
+            BEAST_EXPECT(b.capacity() >= 2000);
+            b.commit(750);
+            BEAST_EXPECT(b.size() == 1750);
+            b.consume(500);
+            BEAST_EXPECT(b.size() == 1250);
+            b.consume(500);
+            BEAST_EXPECT(b.size() == 750);
+            b.prepare(250);
+            b.consume(750);
+            BEAST_EXPECT(b.size() == 0);
+            b.prepare(1000);
+            b.commit(800);
+            BEAST_EXPECT(b.size() == 800);
+            b.prepare(1000);
+            b.commit(600);
+            BEAST_EXPECT(b.size() == 1400);
+            b.consume(1400);
+            BEAST_EXPECT(b.size() == 0);
+        }
+
+        // reserve
+        {
+            multi_buffer b;
+            BEAST_EXPECT(b.capacity() == 0);
+            b.reserve(50);
+            BEAST_EXPECT(b.capacity() >= 50);
+            b.prepare(20);
+            b.commit(20);
+            b.reserve(50);
+            BEAST_EXPECT(b.capacity() >= 50);
+            BEAST_EXPECT(b.size() > 1);
+            auto capacity = b.capacity();
+            b.reserve(b.size() - 1);
+            BEAST_EXPECT(b.capacity() == capacity);
+            b.reserve(b.capacity() + 1);
+            BEAST_EXPECT(b.capacity() > capacity);
+            capacity = b.capacity();
+            BEAST_EXPECT(buffers_length(
+                b.prepare(b.capacity() + 200)) > 1);
+            BEAST_EXPECT(b.capacity() > capacity);
+            b.reserve(b.capacity() + 2);
+            BEAST_EXPECT(b.capacity() > capacity);
+            capacity = b.capacity();
+            b.reserve(b.capacity());
+            BEAST_EXPECT(b.capacity() == capacity);
+        }
+
+        // shrink to fit
+        {
+            {
+                multi_buffer b;
+                BEAST_EXPECT(b.capacity() == 0);
+                b.prepare(50);
+                BEAST_EXPECT(b.capacity() >= 50);
+                b.commit(50);
+                BEAST_EXPECT(b.capacity() >= 50);
+                b.prepare(75);
+                BEAST_EXPECT(b.capacity() >= 125);
+                b.shrink_to_fit();
+                BEAST_EXPECT(b.capacity() >= b.size());
+            }
+            {
+                multi_buffer b;
+                b.prepare(2000);
+                BEAST_EXPECT(b.capacity() == 2000);
+                b.commit(1800);
+                BEAST_EXPECT(b.size() == 1800);
+                BEAST_EXPECT(b.capacity() == 2000);
+                b.prepare(5000);
+                BEAST_EXPECT(b.capacity() == 6800);
+                b.shrink_to_fit();
+                BEAST_EXPECT(b.capacity() == 2000);
+            }
+        }
+
+        // clear
+        {
+            multi_buffer b;
+            BEAST_EXPECT(b.capacity() == 0);
+            b.prepare(50);
+            b.commit(50);
+            BEAST_EXPECT(b.size() == 50);
+            BEAST_EXPECT(b.capacity() == 512);
+            b.clear();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(b.capacity() == 512);
+        }
+
+        // swap
+        {
+            {
+                // propagate_on_container_swap : true
+                using pocs_t = test::test_allocator<char,
+                    false, true, true, true, true>;
+                pocs_t a1, a2;
+                BEAST_EXPECT(a1 != a2);
+                basic_multi_buffer<pocs_t> b1{a1};
+                ostream(b1) << "Hello";
+                basic_multi_buffer<pocs_t> b2{a2};
+                BEAST_EXPECT(b1.get_allocator() == a1);
+                BEAST_EXPECT(b2.get_allocator() == a2);
+                swap(b1, b2);
+                BEAST_EXPECT(b1.get_allocator() == a2);
+                BEAST_EXPECT(b2.get_allocator() == a1);
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                swap(b1, b2);
+                BEAST_EXPECT(b1.get_allocator() == a1);
+                BEAST_EXPECT(b2.get_allocator() == a2);
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(b2.size() == 0);
+            }
+            {
+                // propagate_on_container_swap : false
+                using pocs_t = test::test_allocator<char,
+                    true, true, true, false, true>;
+                pocs_t a1, a2;
+                BEAST_EXPECT(a1 == a2);
+                BEAST_EXPECT(a1.id() != a2.id());
+                basic_multi_buffer<pocs_t> b1{a1};
+                ostream(b1) << "Hello";
+                basic_multi_buffer<pocs_t> b2{a2};
+                BEAST_EXPECT(b1.get_allocator() == a1);
+                BEAST_EXPECT(b2.get_allocator() == a2);
+                swap(b1, b2);
+                BEAST_EXPECT(b1.get_allocator().id() == a1.id());
+                BEAST_EXPECT(b2.get_allocator().id() == a2.id());
+                BEAST_EXPECT(b1.size() == 0);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == "Hello");
+                swap(b1, b2);
+                BEAST_EXPECT(b1.get_allocator().id() == a1.id());
+                BEAST_EXPECT(b2.get_allocator().id() == a2.id());
+                BEAST_EXPECT(buffers_to_string(b1.data()) == "Hello");
+                BEAST_EXPECT(b2.size() == 0);
+            }
+        }
+
+        // read_size
+        {
+            multi_buffer b{10};
+            BEAST_EXPECT(read_size(b, 512) == 10);
+            b.prepare(4);
+            b.commit(4);
+            BEAST_EXPECT(read_size(b, 512) == 6);
+            b.consume(2);
+            BEAST_EXPECT(read_size(b, 512) == 8);
+            b.prepare(8);
+            b.commit(8);
+            BEAST_EXPECT(read_size(b, 512) == 0);
+        }
+    }
+
+    void
+    testMatrix1()
+    {
+        string_view s = "Hello, world";
+        BEAST_EXPECT(s.size() == 12);
+        for(std::size_t i = 1; i < 12; ++i) {
+        for(std::size_t x = 1; x < 4; ++x) {
+        for(std::size_t y = 1; y < 4; ++y) {
+        std::size_t z = s.size() - (x + y);
+        {
+            multi_buffer b;
+            b.commit(net::buffer_copy(
+                b.prepare(x), net::buffer(s.data(), x)));
+            b.commit(net::buffer_copy(
+                b.prepare(y), net::buffer(s.data()+x, y)));
+            b.commit(net::buffer_copy(
+                b.prepare(z), net::buffer(s.data()+x+y, z)));
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+            {
+                multi_buffer mb2{b};
+                BEAST_EXPECT(eq(b, mb2));
+            }
+            {
+                multi_buffer mb2;
+                mb2 = b;
+                BEAST_EXPECT(eq(b, mb2));
+            }
+            {
+                multi_buffer mb2{std::move(b)};
+                BEAST_EXPECT(buffers_to_string(mb2.data()) == s);
+                BEAST_EXPECT(b.size() == 0);
+                BEAST_EXPECT(buffer_bytes(b.data()) == 0);
+                b = std::move(mb2);
+                BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                BEAST_EXPECT(mb2.size() == 0);
+                BEAST_EXPECT(buffer_bytes(mb2.data()) == 0);
+            }
+        }
+        }}}
+    }
+
+    void
+    testMatrix2()
+    {
+        using namespace test;
+        std::string const s = "Hello, world";
+        BEAST_EXPECT(s.size() == 12);
+        for(std::size_t i = 1; i < 12; ++i) {
+        for(std::size_t x = 1; x < 4; ++x) {
+        for(std::size_t y = 1; y < 4; ++y) {
+        for(std::size_t t = 1; t < 4; ++ t) {
+        for(std::size_t u = 1; u < 4; ++ u) {
+        std::size_t z = s.size() - (x + y);
+        std::size_t v = s.size() - (t + u);
+        {
+            multi_buffer b;
+            {
+                auto d = b.prepare(z);
+                BEAST_EXPECT(buffer_bytes(d) == z);
+            }
+            {
+                auto d = b.prepare(0);
+                BEAST_EXPECT(buffer_bytes(d) == 0);
+            }
+            {
+                auto d = b.prepare(y);
+                BEAST_EXPECT(buffer_bytes(d) == y);
+            }
+            {
+                auto d = b.prepare(x);
+                BEAST_EXPECT(buffer_bytes(d) == x);
+                b.commit(buffer_copy(d, net::buffer(s.data(), x)));
+            }
+            BEAST_EXPECT(b.size() == x);
+            BEAST_EXPECT(buffer_bytes(b.data()) == b.size());
+            {
+                auto d = b.prepare(x);
+                BEAST_EXPECT(buffer_bytes(d) == x);
+            }
+            {
+                auto d = b.prepare(0);
+                BEAST_EXPECT(buffer_bytes(d) == 0);
+            }
+            {
+                auto d = b.prepare(z);
+                BEAST_EXPECT(buffer_bytes(d) == z);
+            }
+            {
+                auto d = b.prepare(y);
+                BEAST_EXPECT(buffer_bytes(d) == y);
+                b.commit(buffer_copy(d, net::buffer(s.data()+x, y)));
+            }
+            b.commit(1);
+            BEAST_EXPECT(b.size() == x + y);
+            BEAST_EXPECT(buffer_bytes(b.data()) == b.size());
+            {
+                auto d = b.prepare(x);
+                BEAST_EXPECT(buffer_bytes(d) == x);
+            }
+            {
+                auto d = b.prepare(y);
+                BEAST_EXPECT(buffer_bytes(d) == y);
+            }
+            {
+                auto d = b.prepare(0);
+                BEAST_EXPECT(buffer_bytes(d) == 0);
+            }
+            {
+                auto d = b.prepare(z);
+                BEAST_EXPECT(buffer_bytes(d) == z);
+                b.commit(buffer_copy(d, net::buffer(s.data()+x+y, z)));
+            }
+            b.commit(2);
+            BEAST_EXPECT(b.size() == x + y + z);
+            BEAST_EXPECT(buffer_bytes(b.data()) == b.size());
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+            b.consume(t);
+            {
+                auto d = b.prepare(0);
+                BEAST_EXPECT(buffer_bytes(d) == 0);
+            }
+            BEAST_EXPECT(buffers_to_string(b.data()) ==
+                s.substr(t, std::string::npos));
+            b.consume(u);
+            BEAST_EXPECT(buffers_to_string(b.data()) ==
+                s.substr(t + u, std::string::npos));
+            b.consume(v);
+            BEAST_EXPECT(buffers_to_string(b.data()).empty());
+            b.consume(1);
+            {
+                auto d = b.prepare(0);
+                BEAST_EXPECT(buffer_bytes(d) == 0);
+            }
+        }
+        }}}}}
+    }
+
+    void
+    run() override
+    {
+        testShrinkToFit();
+        testDynamicBuffer();
+        testMembers();
+        testMatrix1();
+        testMatrix2();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,multi_buffer);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/ostream.cpp b/src/boost/libs/beast/test/beast/core/ostream.cpp
new file mode 100644
index 000000000..a1319b885
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/ostream.cpp
@@ -0,0 +1,106 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/ostream.hpp>
+
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/flat_static_buffer.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <ostream>
+
+namespace boost {
+namespace beast {
+
+class ostream_test : public beast::unit_test::suite
+{
+public:
+    void
+    testOstream()
+    {
+        string_view const s = "0123456789abcdef";
+        BEAST_EXPECT(s.size() == 16);
+
+        // overflow
+        {
+            flat_static_buffer<16> b;
+            ostream(b) << s;
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        }
+
+        // max_size
+        {
+            flat_static_buffer<16> b;
+            auto os = ostream(b);
+            os << s;
+            os << '*';
+            BEAST_EXPECT(os.bad());
+        }
+
+        // max_size (exception
+        {
+            flat_static_buffer<16> b;
+            auto os = ostream(b);
+            os.exceptions(os.badbit);
+            os << s;
+            try
+            {
+                os << '*';
+                fail("missing exception", __FILE__, __LINE__);
+            }
+            catch(std::ios_base::failure const&)
+            {
+                pass();
+            }
+            catch(...)
+            {
+                fail("wrong exception", __FILE__, __LINE__);
+            }
+        }
+
+        // flush
+        {
+            // Issue #1853
+            flat_static_buffer<16> b;
+            auto half_view = string_view(s.data(), 8);
+            {
+                auto os = ostream(b);
+                os << half_view;
+                os.flush();
+            }
+            BEAST_EXPECT(buffers_to_string(b.data()) == half_view);
+        }
+
+        {
+            flat_static_buffer<16> b;
+            {
+                auto os = ostream(b);
+                os << string_view(s.data(), 8);
+                os.flush();
+                os << string_view(s.data() + 8, 8);
+                os.flush();
+            }
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        }
+    }
+
+    void
+    run() override
+    {
+        testOstream();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,ostream);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/prepare_buffers.cpp b/src/boost/libs/beast/test/beast/core/prepare_buffers.cpp
new file mode 100644
index 000000000..3a9902de5
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/prepare_buffers.cpp
@@ -0,0 +1,12 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <beast/core/prepare_buffers.hpp>
+
diff --git a/src/boost/libs/beast/test/beast/core/rate_policy.cpp b/src/boost/libs/beast/test/beast/core/rate_policy.cpp
new file mode 100644
index 000000000..bb520945c
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/rate_policy.cpp
@@ -0,0 +1,57 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/rate_policy.hpp>
+#include <boost/core/ignore_unused.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+//[concept_RatePolicy
+class RatePolicy
+{
+    friend class rate_policy_access;
+
+    std::size_t
+    available_read_bytes();
+
+    std::size_t
+    available_write_bytes();
+    
+    void
+    transfer_read_bytes(std::size_t);
+    
+    void
+    transfer_write_bytes(std::size_t);
+
+    void
+    on_timer();
+};
+//]
+
+namespace boost {
+namespace beast {
+
+class rate_policy_test : public unit_test::suite
+{
+public:
+    void
+    run() override
+    {
+        boost::ignore_unused(unlimited_rate_policy{});
+        boost::ignore_unused(simple_rate_policy{});
+
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,rate_policy);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/read_size.cpp b/src/boost/libs/beast/test/beast/core/read_size.cpp
new file mode 100644
index 000000000..027fa7beb
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/read_size.cpp
@@ -0,0 +1,50 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/read_size.hpp>
+
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/flat_static_buffer.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/static_buffer.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+#include <boost/asio/streambuf.hpp>
+
+namespace boost {
+namespace beast {
+
+class read_size_test : public beast::unit_test::suite
+{
+public:
+    template<class DynamicBuffer>
+    void
+    check()
+    {
+        DynamicBuffer buffer;
+        read_size(buffer, 65536);
+        pass();
+    }
+
+    void
+    run() override
+    {
+        check<flat_buffer>();
+        check<flat_static_buffer<1024>>();
+        check<multi_buffer>();
+        check<static_buffer<1024>>();
+        check<net::streambuf>();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,read_size);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/role.cpp b/src/boost/libs/beast/test/beast/core/role.cpp
new file mode 100644
index 000000000..51b32ea1f
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/role.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/role.hpp>
diff --git a/src/boost/libs/beast/test/beast/core/saved_handler.cpp b/src/boost/libs/beast/test/beast/core/saved_handler.cpp
new file mode 100644
index 000000000..57a105c63
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/saved_handler.cpp
@@ -0,0 +1,144 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/saved_handler.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <stdexcept>
+
+namespace boost {
+namespace beast {
+
+//------------------------------------------------------------------------------
+
+class saved_handler_test : public unit_test::suite
+{
+public:
+    class handler
+    {
+        bool failed_ = true;
+        bool throw_on_move_ = false;
+    
+    public:
+        handler() = default;
+        handler(handler const&) = delete;
+        handler& operator=(handler&&) = delete;
+        handler& operator=(handler const&) = delete;
+
+        ~handler()
+        {
+            BEAST_EXPECT(! failed_);
+        }
+
+        handler(handler&& other)
+            : failed_(boost::exchange(
+                other.failed_, false))
+        {
+            if(throw_on_move_)
+                throw std::bad_alloc{};
+        }
+
+        void
+        operator()()
+        {
+            failed_ = false;
+        }
+    };
+
+    class unhandler
+    {
+        bool invoked_ = false;
+   
+    public:
+        unhandler() = default;
+        unhandler(unhandler const&) = delete;
+        unhandler& operator=(unhandler&&) = delete;
+        unhandler& operator=(unhandler const&) = delete;
+
+        ~unhandler()
+        {
+            BEAST_EXPECT(! invoked_);
+        }
+
+        unhandler(unhandler&& other)
+            : invoked_(boost::exchange(
+                other.invoked_, false))
+        {
+        }
+
+        void
+        operator()()
+        {
+            invoked_ = true;
+        }
+    };
+
+    struct throwing_handler
+    {
+        throwing_handler() = default;
+
+        throwing_handler(throwing_handler&&)
+        {
+            BOOST_THROW_EXCEPTION(std::exception{});
+        }
+
+        void
+        operator()()
+        {
+        }
+    };
+
+    void
+    testSavedHandler()
+    {
+        {
+            saved_handler sh;
+            BEAST_EXPECT(! sh.has_value());
+
+            sh.emplace(handler{});
+            BEAST_EXPECT(sh.has_value());
+            sh.invoke();
+            BEAST_EXPECT(! sh.has_value());
+
+            sh.emplace(handler{}, std::allocator<char>{});
+            BEAST_EXPECT(sh.has_value());
+            sh.invoke();
+            BEAST_EXPECT(! sh.has_value());
+
+            sh.emplace(unhandler{});
+            BEAST_EXPECT(sh.has_value());
+        }
+
+        {
+            saved_handler sh;
+            try
+            {
+                sh.emplace(throwing_handler{});
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+            BEAST_EXPECT(! sh.has_value());
+        }
+    }
+
+    void
+    run() override
+    {
+        testSavedHandler();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,saved_handler);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/span.cpp b/src/boost/libs/beast/test/beast/core/span.cpp
new file mode 100644
index 000000000..96b6a774a
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/span.cpp
@@ -0,0 +1,62 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/span.hpp>
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+#include <vector>
+
+namespace boost {
+namespace beast {
+
+class span_test : public beast::unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        detail::is_contiguous_container<
+        string_view, char const>::value);
+
+    struct base {};
+    struct derived : base {};
+
+    BOOST_STATIC_ASSERT(detail::is_contiguous_container<
+        std::vector<char>, char>::value);
+    
+    BOOST_STATIC_ASSERT(detail::is_contiguous_container<
+        std::vector<char>, char const>::value);
+
+    BOOST_STATIC_ASSERT(! detail::is_contiguous_container<
+        std::vector<derived>, base>::value);
+
+    BOOST_STATIC_ASSERT(! detail::is_contiguous_container<
+        std::vector<derived>, base const>::value);
+
+    void
+    testSpan()
+    {
+        span<char const> sp{"hello", 5};
+        BEAST_EXPECT(sp.size() == 5);
+        std::string s("world");
+        sp = s;
+    }
+
+    void
+    run() override
+    {
+        testSpan();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,span);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/static_buffer.cpp b/src/boost/libs/beast/test/beast/core/static_buffer.cpp
new file mode 100644
index 000000000..9a8b55a72
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/static_buffer.cpp
@@ -0,0 +1,184 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/static_buffer.hpp>
+
+#include "test_buffer.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/buffers_iterator.hpp>
+#include <algorithm>
+#include <cctype>
+#include <string>
+
+namespace boost {
+namespace beast {
+
+class static_buffer_test : public beast::unit_test::suite
+{
+public:
+    BOOST_STATIC_ASSERT(
+        is_mutable_dynamic_buffer<
+            static_buffer<13>>::value);
+
+    BOOST_STATIC_ASSERT(
+        is_mutable_dynamic_buffer<
+            static_buffer_base>::value);
+
+    void
+    testDynamicBuffer()
+    {
+        test_dynamic_buffer(static_buffer<13>{});
+    }
+
+    void
+    testMembers()
+    {
+        string_view const s = "Hello, world!";
+        
+        // static_buffer_base
+        {
+            char buf[64];
+            static_buffer_base b{buf, sizeof(buf)};
+            ostream(b) << s;
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+            b.clear();
+            BEAST_EXPECT(b.size() == 0);
+            BEAST_EXPECT(buffer_bytes(b.data()) == 0);
+        }
+
+        // static_buffer
+        {
+            static_buffer<64> b1;
+            BEAST_EXPECT(b1.size() == 0);
+            BEAST_EXPECT(b1.max_size() == 64);
+            BEAST_EXPECT(b1.capacity() == 64);
+            ostream(b1) << s;
+            BEAST_EXPECT(buffers_to_string(b1.data()) == s);
+            {
+                static_buffer<64> b2{b1};
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                b2.consume(7);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+            }
+            {
+                static_buffer<64> b2;
+                b2 = b1;
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s);
+                b2.consume(7);
+                BEAST_EXPECT(buffers_to_string(b2.data()) == s.substr(7));
+            }
+        }
+
+        // cause memmove
+        {
+            static_buffer<10> b;
+            ostream(b) << "12345";
+            b.consume(3);
+            ostream(b) << "67890123";
+            BEAST_EXPECT(buffers_to_string(b.data()) == "4567890123");
+            try
+            {
+                b.prepare(1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        // read_size
+        {
+            static_buffer<10> b;
+            BEAST_EXPECT(read_size(b, 512) == 10);
+            b.prepare(4);
+            b.commit(4);
+            BEAST_EXPECT(read_size(b, 512) == 6);
+            b.consume(2);
+            BEAST_EXPECT(read_size(b, 512) == 8);
+            b.prepare(8);
+            b.commit(8);
+            BEAST_EXPECT(read_size(b, 512) == 0);
+        }
+
+        // base
+        {
+            static_buffer<10> b;
+            [&](static_buffer_base& base)
+            {
+                BEAST_EXPECT(base.max_size() == b.capacity());
+            }
+            (b.base());
+
+            [&](static_buffer_base const& base)
+            {
+                BEAST_EXPECT(base.max_size() == b.capacity());
+            }
+            (b.base());
+        }
+
+        // This exercises the wrap-around cases
+        // for the circular buffer representation
+        {
+            static_buffer<5> b;
+            {
+                auto const mb = b.prepare(5);
+                BEAST_EXPECT(buffers_length(mb) == 1);
+            }
+            b.commit(4);
+            BEAST_EXPECT(buffers_length(b.data()) == 1);
+            BEAST_EXPECT(buffers_length(b.cdata()) == 1);
+            b.consume(3);
+            {
+                auto const mb = b.prepare(3);
+                BEAST_EXPECT(buffers_length(mb) == 2);
+                auto it1 = mb.begin();
+                auto it2 = std::next(it1);
+                BEAST_EXPECT(
+                    net::const_buffer(*it1).data() >
+                    net::const_buffer(*it2).data());
+            }
+            b.commit(2);
+            {
+                auto const mb = b.data();
+                auto it1 = mb.begin();
+                auto it2 = std::next(it1);
+                BEAST_EXPECT(
+                    net::const_buffer(*it1).data() >
+                    net::const_buffer(*it2).data());
+            }
+            {
+                auto const cb = b.cdata();
+                auto it1 = cb.begin();
+                auto it2 = std::next(it1);
+                BEAST_EXPECT(
+                    net::const_buffer(*it1).data() >
+                    net::const_buffer(*it2).data());
+            }
+        }
+    }
+
+    void
+    run() override
+    {
+        testDynamicBuffer();
+        testMembers();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,static_buffer);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/static_string.cpp b/src/boost/libs/beast/test/beast/core/static_string.cpp
new file mode 100644
index 000000000..6e14715ae
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/static_string.cpp
@@ -0,0 +1,1481 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/static_string.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+class static_string_test : public beast::unit_test::suite
+{
+public:
+    void
+    testConstruct()
+    {
+        {
+            static_string<1> s;
+            BEAST_EXPECT(s.empty());
+            BEAST_EXPECT(s.size() == 0);
+            BEAST_EXPECT(s == "");
+            BEAST_EXPECT(*s.end() == 0);
+        }
+        {
+            static_string<4> s1(3, 'x');
+            BEAST_EXPECT(! s1.empty());
+            BEAST_EXPECT(s1.size() == 3);
+            BEAST_EXPECT(s1 == "xxx");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<2> s2(3, 'x');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("12345");
+            BEAST_EXPECT(*s1.end() == 0);
+            static_string<3> s2(s1, 2);
+            BEAST_EXPECT(s2 == "345");
+            BEAST_EXPECT(*s2.end() == 0);
+            static_string<0> s3(s1, 5);
+            BEAST_EXPECT(s3.empty());
+            BEAST_EXPECT(s3.front() == 0);
+            BEAST_EXPECT(*s3.end() == 0);
+        }
+        {
+            static_string<5> s1("12345");
+            static_string<2> s2(s1, 1, 2);
+            BEAST_EXPECT(s2 == "23");
+            BEAST_EXPECT(*s2.end() == 0);
+            static_string<0> s3(s1, 5, 1);
+            BEAST_EXPECT(s3.empty());
+            BEAST_EXPECT(s3.front() == 0);
+            BEAST_EXPECT(*s3.end() == 0);
+            try
+            {
+                static_string<5> s4(s1, 6);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("UVXYZ", 3);
+            BEAST_EXPECT(s1 == "UVX");
+            BEAST_EXPECT(*s1.end() == 0);
+            static_string<5> s2("X\0""Y\0""Z", 3);
+            BEAST_EXPECT(std::memcmp(
+                s2.data(), "X\0""Y", 3) == 0);
+            BEAST_EXPECT(*s2.end() == 0);
+        }
+        {
+            static_string<5> s1("12345");
+            static_string<3> s2(
+                s1.begin() + 1, s1.begin() + 3);
+            BEAST_EXPECT(s2 == "23");
+            BEAST_EXPECT(*s2.end() == 0);
+        }
+        {
+            static_string<5> s1("12345");
+            static_string<5> s2(s1);
+            BEAST_EXPECT(s2 == "12345");
+            BEAST_EXPECT(*s2.end() == 0);
+            static_string<6> s3(s1);
+            BEAST_EXPECT(s3 == "12345");
+            BEAST_EXPECT(*s3.end() == 0);
+            try
+            {
+                static_string<4> s4(s1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1({'1', '2', '3'});
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            BEAST_EXPECT(
+                static_string<0>({}) == static_string<0>());
+            try
+            {
+                static_string<2> s2({'1', '2', '3'});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1(
+                string_view("123"));
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<2> s2(
+                    string_view("123"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1(
+                std::string("12345"), 2, 2);
+            BEAST_EXPECT(s1 == "34");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<2> s2(
+                    std::string("12345"), 1, 3);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+    }
+
+    void
+    testAssign()
+    {
+        {
+            static_string<3> s1("123");
+            static_string<3> s2;
+            s2 = s1;
+            BEAST_EXPECT(s2 == "123");
+            BEAST_EXPECT(*s2.end() == 0);
+        }
+        {
+            static_string<3> s1("123");
+            static_string<5> s2;
+            s2 = s1;
+            BEAST_EXPECT(s2 == "123");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<1> s3;
+                s3 = s1;
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1;
+            s1 = "123";
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<1> s2;
+                s2 = "123";
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<1> s1;
+            s1 = 'x';
+            BEAST_EXPECT(s1 == "x");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<0> s2;
+                s2 = 'x';
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1;
+            s1 = {'1', '2', '3'};
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<1> s2;
+                s2 = {'1', '2', '3'};
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1;
+            s1 = string_view("123");
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<1> s2;
+                s2 = string_view("123");
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        {
+            static_string<4> s1;
+            s1.assign(3, 'x');
+            BEAST_EXPECT(s1 == "xxx");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<2> s2;
+                s2.assign(3, 'x');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("12345");
+            BEAST_EXPECT(*s1.end() == 0);
+            static_string<5> s2;
+            s2.assign(s1);
+            BEAST_EXPECT(s2 == "12345");
+            BEAST_EXPECT(*s2.end() == 0);
+        }
+        {
+            static_string<5> s1("12345");
+            BEAST_EXPECT(*s1.end() == 0);
+            static_string<7> s2;
+            s2.assign(s1);
+            BEAST_EXPECT(s2 == "12345");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<3> s3;
+                s3.assign(s1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("12345");
+            static_string<5> s2;
+            s2.assign(s1, 1);
+            BEAST_EXPECT(s2 == "2345");
+            BEAST_EXPECT(*s2.end() == 0);
+            s2.assign(s1, 1, 2);
+            BEAST_EXPECT(s2 == "23");
+            BEAST_EXPECT(*s2.end() == 0);
+            s2.assign(s1, 1, 100);
+            BEAST_EXPECT(s2 == "2345");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                s2.assign(s1, 6);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<3> s3;
+                s3.assign(s1, 1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1;
+            s1.assign("12");
+            BEAST_EXPECT(s1 == "12");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.assign("12345");
+            BEAST_EXPECT(s1 == "12345");
+            BEAST_EXPECT(*s1.end() == 0);
+        }
+        {
+            static_string<5> s1;
+            s1.assign("12345", 3);
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+        }
+        {
+            static_string<5> s1("12345");
+            static_string<3> s2;
+            s2.assign(s1.begin(), s1.begin() + 2);
+            BEAST_EXPECT(s2 == "12");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                s2.assign(s1.begin(), s1.end());
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1;
+            s1.assign({'1', '2', '3'});
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<1> s2;
+                s2.assign({'1', '2', '3'});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1;
+            s1.assign(string_view("123"));
+            BEAST_EXPECT(s1 == "123");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.assign(string_view("12345"));
+            BEAST_EXPECT(s1 == "12345");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                s1.assign(string_view("1234567"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1;
+            s1.assign(std::string("12345"), 2, 2);
+            BEAST_EXPECT(s1 == "34");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.assign(std::string("12345"), 3);
+            BEAST_EXPECT(s1 == "45");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<2> s2;
+                s2.assign(
+                    std::string("12345"), 1, 3);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+    }
+
+    void
+    testAccess()
+    {
+        {
+            static_string<5> s("12345");
+            BEAST_EXPECT(s.at(1) == '2');
+            BEAST_EXPECT(s.at(4) == '5');
+            try
+            {
+                BEAST_EXPECT(s.at(5) == 0);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> const s("12345");
+            BEAST_EXPECT(s.at(1) == '2');
+            BEAST_EXPECT(s.at(4) == '5');
+            try
+            {
+                BEAST_EXPECT(s.at(5) == 0);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s("12345");
+            BEAST_EXPECT(s[1] == '2');
+            BEAST_EXPECT(s[4] == '5');
+            s[1] = '_';
+            BEAST_EXPECT(s == "1_345");
+        }
+        {
+            static_string<5> const s("12345");
+            BEAST_EXPECT(s[1] == '2');
+            BEAST_EXPECT(s[4] == '5');
+            BEAST_EXPECT(s[5] == 0);
+        }
+        {
+            static_string<3> s("123");
+            BEAST_EXPECT(s.front() == '1');
+            BEAST_EXPECT(s.back() == '3');
+            s.front() = '_';
+            BEAST_EXPECT(s == "_23");
+            s.back() = '_';
+            BEAST_EXPECT(s == "_2_");
+        }
+        {
+            static_string<3> const s("123");
+            BEAST_EXPECT(s.front() == '1');
+            BEAST_EXPECT(s.back() == '3');
+        }
+        {
+            static_string<3> s("123");
+            BEAST_EXPECT(std::memcmp(
+                s.data(), "123", 3) == 0);
+        }
+        {
+            static_string<3> const s("123");
+            BEAST_EXPECT(std::memcmp(
+                s.data(), "123", 3) == 0);
+        }
+        {
+            static_string<3> s("123");
+            BEAST_EXPECT(std::memcmp(
+                s.c_str(), "123\0", 4) == 0);
+        }
+        {
+            static_string<3> s("123");
+            string_view sv = s;
+            BEAST_EXPECT(static_string<5>(sv) == "123");
+        }
+    }
+
+    void
+    testIterators()
+    {
+        {
+            static_string<3> s;
+            BEAST_EXPECT(std::distance(
+                s.begin(), s.end()) == 0);
+            BEAST_EXPECT(std::distance(
+                s.rbegin(), s.rend()) == 0);
+            s = "123";
+            BEAST_EXPECT(std::distance(
+                s.begin(), s.end()) == 3);
+            BEAST_EXPECT(std::distance(
+                s.rbegin(), s.rend()) == 3);
+        }
+        {
+            static_string<3> const s("123");
+            BEAST_EXPECT(std::distance(
+                s.begin(), s.end()) == 3);
+            BEAST_EXPECT(std::distance(
+                s.cbegin(), s.cend()) == 3);
+            BEAST_EXPECT(std::distance(
+                s.rbegin(), s.rend()) == 3);
+            BEAST_EXPECT(std::distance(
+                s.crbegin(), s.crend()) == 3);
+        }
+    }
+
+    void
+    testCapacity()
+    {
+        static_string<3> s;
+        BEAST_EXPECT(s.empty());
+        BEAST_EXPECT(s.size() == 0);
+        BEAST_EXPECT(s.length() == 0);
+        BEAST_EXPECT(s.max_size() == 3);
+        BEAST_EXPECT(s.capacity() == 3);
+        s = "123";
+        BEAST_EXPECT(! s.empty());
+        BEAST_EXPECT(s.size() == 3);
+        BEAST_EXPECT(s.length() == 3);
+        s.reserve(0);
+        s.reserve(3);
+        try
+        {
+            s.reserve(4);
+            fail("", __FILE__, __LINE__);
+        }
+        catch(std::length_error const&)
+        {
+            pass();
+        }
+        s.shrink_to_fit();
+        BEAST_EXPECT(! s.empty());
+        BEAST_EXPECT(s.size() == 3);
+        BEAST_EXPECT(s.length() == 3);
+        BEAST_EXPECT(*s.end() == 0);
+    }
+
+    void
+    testOperations()
+    {
+        //
+        // clear
+        //
+
+        {
+            static_string<3> s("123");
+            s.clear();
+            BEAST_EXPECT(s.empty());
+            BEAST_EXPECT(*s.end() == 0);
+        }
+
+        //
+        // insert
+        //
+
+        {
+            // Using 7 as the size causes a miscompile in MSVC14.2 x64 Release
+            static_string<8> s1("12345");
+            s1.insert(2, 2, '_');
+            BEAST_EXPECT(s1 == "12__345");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(2, 2, '_');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(6, 2, '_');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<7> s1("12345");
+            s1.insert(2, "__");
+            BEAST_EXPECT(s1 == "12__345");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(2, "__");
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(6, "__");
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<7> s1("12345");
+            s1.insert(2, "TUV", 2);
+            BEAST_EXPECT(s1 == "12TU345");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(2, "TUV", 2);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(6, "TUV", 2);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<7> s1("12345");
+            s1.insert(2, static_string<3>("TU"));
+            BEAST_EXPECT(s1 == "12TU345");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(2, static_string<3>("TUV"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(6, static_string<3>("TUV"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<7> s1("12345");
+            s1.insert(2, static_string<3>("TUV"), 1);
+            BEAST_EXPECT(s1 == "12UV345");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1 = "12345";
+            s1.insert(2, static_string<3>("TUV"), 1, 1);
+            BEAST_EXPECT(s1 == "12U345");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(2, static_string<3>("TUV"), 1, 2);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<6> s2("12345");
+                s2.insert(6, static_string<3>("TUV"), 1, 2);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<4> s1("123");
+            s1.insert(s1.begin() + 1, '_');
+            BEAST_EXPECT(s1 == "1_23");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<3> s2("123");
+                s2.insert(s2.begin() + 1, '_');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<4> s1("12");
+            s1.insert(s1.begin() + 1, 2, '_');
+            BEAST_EXPECT(s1 == "1__2");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<4> s2("123");
+                s2.insert(s2.begin() + 1, 2, ' ');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1("123");
+            static_string<5> s2("UV");
+            s2.insert(s2.begin() + 1, s1.begin(), s1.end());
+            BEAST_EXPECT(s2 == "U123V");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<4> s3("UV");
+                s3.insert(s3.begin() + 1, s1.begin(), s1.end());
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("123");
+            s1.insert(1, string_view("UV"));
+            BEAST_EXPECT(s1 == "1UV23");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<4> s2("123");
+                s2.insert(1, string_view("UV"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<5> s2("123");
+                s2.insert(5, string_view("UV"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("123");
+            s1.insert(1, std::string("UV"));
+            BEAST_EXPECT(s1 == "1UV23");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                s1.insert(1, std::string("UV"));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<6> s1("123");
+            s1.insert(1, std::string("UVX"), 1);
+            BEAST_EXPECT(s1 == "1VX23");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.insert(4, std::string("PQR"), 1, 1);
+            BEAST_EXPECT(s1 == "1VX2Q3");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                s1.insert(4, std::string("PQR"), 1, 1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        //
+        // erase
+        //
+
+        {
+            static_string<9> s1("123456789");
+            BEAST_EXPECT(s1.erase(1, 1) == "13456789");
+            BEAST_EXPECT(s1 == "13456789");
+            BEAST_EXPECT(*s1.end() == 0);
+            BEAST_EXPECT(s1.erase(5) == "13456");
+            BEAST_EXPECT(s1 == "13456");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                s1.erase(7);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<9> s1("123456789");
+            BEAST_EXPECT(*s1.erase(s1.begin() + 5) == '7');
+            BEAST_EXPECT(s1 == "12345789");
+            BEAST_EXPECT(*s1.end() == 0);
+        }
+        {
+            static_string<9> s1("123456789");
+            BEAST_EXPECT(*s1.erase(
+                s1.begin() + 5, s1.begin() + 7) == '8');
+            BEAST_EXPECT(s1 == "1234589");
+            BEAST_EXPECT(*s1.end() == 0);
+        }
+
+        //
+        // push_back
+        //
+
+        {
+            static_string<3> s1("12");
+            s1.push_back('3');
+            BEAST_EXPECT(s1 == "123");
+            try
+            {
+                s1.push_back('4');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            static_string<0> s2;
+            try
+            {
+                s2.push_back('_');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        //
+        // pop_back
+        //
+
+        {
+            static_string<3> s1("123");
+            s1.pop_back();
+            BEAST_EXPECT(s1 == "12");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.pop_back();
+            BEAST_EXPECT(s1 == "1");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.pop_back();
+            BEAST_EXPECT(s1.empty());
+            BEAST_EXPECT(*s1.end() == 0);
+        }
+
+        //
+        // append
+        //
+
+        {
+            static_string<3> s1("1");
+            s1.append(2, '_');
+            BEAST_EXPECT(s1 == "1__");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<2> s2("1");
+                s2.append(2, '_');
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<2> s1("__");
+            static_string<3> s2("1");
+            s2.append(s1);
+            BEAST_EXPECT(s2 == "1__");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<2> s3("1");
+                s3.append(s1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1("XYZ");
+            static_string<4> s2("12");
+            s2.append(s1, 1);
+            BEAST_EXPECT(s2 == "12YZ");
+            BEAST_EXPECT(*s2.end() == 0);
+            static_string<3> s3("12");
+            s3.append(s1, 1, 1);
+            BEAST_EXPECT(s3 == "12Y");
+            BEAST_EXPECT(*s3.end() == 0);
+            try
+            {
+                static_string<3> s4("12");
+                s4.append(s1, 3);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::out_of_range const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<3> s4("12");
+                s4.append(s1, 1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<4> s1("12");
+            s1.append("XYZ", 2);
+            BEAST_EXPECT(s1 == "12XY");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<3> s3("12");
+                s3.append("XYZ", 2);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("12");
+            s1.append("XYZ");
+            BEAST_EXPECT(s1 == "12XYZ");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<4> s2("12");
+                s2.append("XYZ");
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1("XYZ");
+            static_string<5> s2("12");
+            s2.append(s1.begin(), s1.end());
+            BEAST_EXPECT(s2 == "12XYZ");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<4> s3("12");
+                s3.append(s1.begin(), s1.end());
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<5> s1("123");
+            s1.append({'X', 'Y'});
+            BEAST_EXPECT(s1 == "123XY");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<4> s2("123");
+                s2.append({'X', 'Y'});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            string_view s1("XYZ");
+            static_string<5> s2("12");
+            s2.append(s1);
+            BEAST_EXPECT(s2 == "12XYZ");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<4> s3("12");
+                s3.append(s1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<6> s1("123");
+            s1.append(std::string("UVX"), 1);
+            BEAST_EXPECT(s1 == "123VX");
+            BEAST_EXPECT(*s1.end() == 0);
+            s1.append(std::string("PQR"), 1, 1);
+            BEAST_EXPECT(s1 == "123VXQ");
+            BEAST_EXPECT(*s1.end() == 0);
+            try
+            {
+                static_string<3> s2("123");
+                s2.append(std::string("PQR"), 1, 1);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+
+        //
+        // operator+=
+        //
+
+        {
+            static_string<2> s1("__");
+            static_string<3> s2("1");
+            s2 += s1;
+            BEAST_EXPECT(s2 == "1__");
+            BEAST_EXPECT(*s2.end() == 0);
+            try
+            {
+                static_string<2> s3("1");
+                s3 += s1;
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<3> s1("12");
+            s1 += '3';
+            BEAST_EXPECT(s1 == "123");
+            try
+            {
+                s1 += '4';
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<4> s1("12");
+            s1 += "34";
+            BEAST_EXPECT(s1 == "1234");
+            try
+            {
+                s1 += "5";
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            static_string<4> s1("12");
+            s1 += {'3', '4'};
+            BEAST_EXPECT(s1 == "1234");
+            try
+            {
+                s1 += {'5'};
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        {
+            string_view s1("34");
+            static_string<4> s2("12");
+            s2 += s1;
+            BEAST_EXPECT(s2 == "1234");
+            try
+            {
+                s2 += s1;
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+    }
+
+    void
+    testCompare()
+    {
+        using str1 = static_string<1>;
+        using str2 = static_string<2>;
+        {
+            str1 s1;
+            str2 s2;
+            s1 = "1";
+            s2 = "22";
+            BEAST_EXPECT(s1.compare(s2) < 0);
+            BEAST_EXPECT(s2.compare(s1) > 0);
+            BEAST_EXPECT(s1 < "10");
+            BEAST_EXPECT(s2 > "1");
+            BEAST_EXPECT("10" > s1);
+            BEAST_EXPECT("1" < s2);
+            BEAST_EXPECT(s1 < "20");
+            BEAST_EXPECT(s2 > "1");
+            BEAST_EXPECT(s2 > "2");
+        }
+        {
+            str2 s1("x");
+            str2 s2("x");
+            BEAST_EXPECT(s1 == s2);
+            BEAST_EXPECT(s1 <= s2);
+            BEAST_EXPECT(s1 >= s2);
+            BEAST_EXPECT(! (s1 < s2));
+            BEAST_EXPECT(! (s1 > s2));
+            BEAST_EXPECT(! (s1 != s2));
+        }
+        {
+            str1 s1("x");
+            str2 s2("x");
+            BEAST_EXPECT(s1 == s2);
+            BEAST_EXPECT(s1 <= s2);
+            BEAST_EXPECT(s1 >= s2);
+            BEAST_EXPECT(! (s1 < s2));
+            BEAST_EXPECT(! (s1 > s2));
+            BEAST_EXPECT(! (s1 != s2));
+        }
+        {
+            str2 s("x");
+            BEAST_EXPECT(s == "x");
+            BEAST_EXPECT(s <= "x");
+            BEAST_EXPECT(s >= "x");
+            BEAST_EXPECT(! (s < "x"));
+            BEAST_EXPECT(! (s > "x"));
+            BEAST_EXPECT(! (s != "x"));
+            BEAST_EXPECT("x" == s);
+            BEAST_EXPECT("x" <= s);
+            BEAST_EXPECT("x" >= s);
+            BEAST_EXPECT(! ("x" < s));
+            BEAST_EXPECT(! ("x" > s));
+            BEAST_EXPECT(! ("x" != s));
+        }
+        {
+            str2 s("x");
+            BEAST_EXPECT(s <= "y");
+            BEAST_EXPECT(s < "y");
+            BEAST_EXPECT(s != "y");
+            BEAST_EXPECT(! (s == "y"));
+            BEAST_EXPECT(! (s >= "y"));
+            BEAST_EXPECT(! (s > "x"));
+            BEAST_EXPECT("y" >= s);
+            BEAST_EXPECT("y" > s);
+            BEAST_EXPECT("y" != s);
+            BEAST_EXPECT(! ("y" == s));
+            BEAST_EXPECT(! ("y" <= s));
+            BEAST_EXPECT(! ("y" < s));
+        }
+        {
+            str1 s1("x");
+            str2 s2("y");
+            BEAST_EXPECT(s1 <= s2);
+            BEAST_EXPECT(s1 < s2);
+            BEAST_EXPECT(s1 != s2);
+            BEAST_EXPECT(! (s1 == s2));
+            BEAST_EXPECT(! (s1 >= s2));
+            BEAST_EXPECT(! (s1 > s2));
+        }
+        {
+            str1 s1("x");
+            str2 s2("xx");
+            BEAST_EXPECT(s1 < s2);
+            BEAST_EXPECT(s2 > s1);
+        }
+        {
+            str1 s1("x");
+            str2 s2("yy");
+            BEAST_EXPECT(s1 < s2);
+            BEAST_EXPECT(s2 > s1);
+        }
+    }
+
+    void
+    testSwap()
+    {
+        {
+            static_string<3> s1("123");
+            static_string<3> s2("XYZ");
+            swap(s1, s2);
+            BEAST_EXPECT(s1 == "XYZ");
+            BEAST_EXPECT(*s1.end() == 0);
+            BEAST_EXPECT(s2 == "123");
+            BEAST_EXPECT(*s2.end() == 0);
+            static_string<3> s3("UV");
+            swap(s2, s3);
+            BEAST_EXPECT(s2 == "UV");
+            BEAST_EXPECT(*s2.end() == 0);
+            BEAST_EXPECT(s3 == "123");
+            BEAST_EXPECT(*s3.end() == 0);
+        }
+        {
+            static_string<5> s1("123");
+            static_string<7> s2("XYZ");
+            swap(s1, s2);
+            BEAST_EXPECT(s1 == "XYZ");
+            BEAST_EXPECT(*s1.end() == 0);
+            BEAST_EXPECT(s2 == "123");
+            BEAST_EXPECT(*s2.end() == 0);
+            static_string<3> s3("UV");
+            swap(s2, s3);
+            BEAST_EXPECT(s2 == "UV");
+            BEAST_EXPECT(*s2.end() == 0);
+            BEAST_EXPECT(s3 == "123");
+            BEAST_EXPECT(*s3.end() == 0);
+            try
+            {
+                static_string<5> s4("12345");
+                static_string<3> s5("XYZ");
+                swap(s4, s5);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+            try
+            {
+                static_string<3> s4("XYZ");
+                static_string<5> s5("12345");
+                swap(s4, s5);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+    }
+
+    void
+    testGeneral()
+    {
+        using str1 = static_string<1>;
+        using str2 = static_string<2>;
+        {
+            str1 s1;
+            BEAST_EXPECT(s1 == "");
+            BEAST_EXPECT(s1.empty());
+            BEAST_EXPECT(s1.size() == 0);
+            BEAST_EXPECT(s1.max_size() == 1);
+            BEAST_EXPECT(s1.capacity() == 1);
+            BEAST_EXPECT(s1.begin() == s1.end());
+            BEAST_EXPECT(s1.cbegin() == s1.cend());
+            BEAST_EXPECT(s1.rbegin() == s1.rend());
+            BEAST_EXPECT(s1.crbegin() == s1.crend());
+            try
+            {
+                BEAST_EXPECT(s1.at(0) == 0);
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+            BEAST_EXPECT(s1.data()[0] == 0);
+            BEAST_EXPECT(*s1.c_str() == 0);
+            BEAST_EXPECT(std::distance(s1.begin(), s1.end()) == 0);
+            BEAST_EXPECT(std::distance(s1.cbegin(), s1.cend()) == 0);
+            BEAST_EXPECT(std::distance(s1.rbegin(), s1.rend()) == 0);
+            BEAST_EXPECT(std::distance(s1.crbegin(), s1.crend()) == 0);
+            BEAST_EXPECT(s1.compare(s1) == 0);
+        }
+        {
+            str1 const s1;
+            BEAST_EXPECT(s1 == "");
+            BEAST_EXPECT(s1.empty());
+            BEAST_EXPECT(s1.size() == 0);
+            BEAST_EXPECT(s1.max_size() == 1);
+            BEAST_EXPECT(s1.capacity() == 1);
+            BEAST_EXPECT(s1.begin() == s1.end());
+            BEAST_EXPECT(s1.cbegin() == s1.cend());
+            BEAST_EXPECT(s1.rbegin() == s1.rend());
+            BEAST_EXPECT(s1.crbegin() == s1.crend());
+            try
+            {
+                BEAST_EXPECT(s1.at(0) == 0);
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+            BEAST_EXPECT(s1.data()[0] == 0);
+            BEAST_EXPECT(*s1.c_str() == 0);
+            BEAST_EXPECT(std::distance(s1.begin(), s1.end()) == 0);
+            BEAST_EXPECT(std::distance(s1.cbegin(), s1.cend()) == 0);
+            BEAST_EXPECT(std::distance(s1.rbegin(), s1.rend()) == 0);
+            BEAST_EXPECT(std::distance(s1.crbegin(), s1.crend()) == 0);
+            BEAST_EXPECT(s1.compare(s1) == 0);
+        }
+        {
+            str1 s1;
+            str1 s2("x");
+            BEAST_EXPECT(s2 == "x");
+            BEAST_EXPECT(s2[0] == 'x');
+            BEAST_EXPECT(s2.at(0) == 'x');
+            BEAST_EXPECT(s2.front() == 'x');
+            BEAST_EXPECT(s2.back() == 'x');
+            str1 const s3(s2);
+            BEAST_EXPECT(s3 == "x");
+            BEAST_EXPECT(s3[0] == 'x');
+            BEAST_EXPECT(s3.at(0) == 'x');
+            BEAST_EXPECT(s3.front() == 'x');
+            BEAST_EXPECT(s3.back() == 'x');
+            s2 = "y";
+            BEAST_EXPECT(s2 == "y");
+            BEAST_EXPECT(s3 == "x");
+            s1 = s2;
+            BEAST_EXPECT(s1 == "y");
+            s1.clear();
+            BEAST_EXPECT(s1.empty());
+            BEAST_EXPECT(s1.size() == 0);
+        }
+        {
+            str2 s1("x");
+            str1 s2(s1);
+            BEAST_EXPECT(s2 == "x");
+            str1 s3;
+            s3 = s2;
+            BEAST_EXPECT(s3 == "x");
+            s1 = "xy";
+            BEAST_EXPECT(s1.size() == 2);
+            BEAST_EXPECT(s1[0] == 'x');
+            BEAST_EXPECT(s1[1] == 'y');
+            BEAST_EXPECT(s1.at(0) == 'x');
+            BEAST_EXPECT(s1.at(1) == 'y');
+            BEAST_EXPECT(s1.front() == 'x');
+            BEAST_EXPECT(s1.back() == 'y');
+            auto const s4 = s1;
+            BEAST_EXPECT(s4[0] == 'x');
+            BEAST_EXPECT(s4[1] == 'y');
+            BEAST_EXPECT(s4.at(0) == 'x');
+            BEAST_EXPECT(s4.at(1) == 'y');
+            BEAST_EXPECT(s4.front() == 'x');
+            BEAST_EXPECT(s4.back() == 'y');
+            try
+            {
+                s3 = s1;
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+            try
+            {
+                str1 s5(s1);
+                fail();
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+        }
+        {
+            str1 s1("x");
+            str2 s2;
+            s2 = s1;
+            try
+            {
+                s1.resize(2);
+                fail();
+            }
+            catch(std::length_error const&)
+            {
+                pass();
+            }
+        }
+        pass();
+    }
+
+    void
+    testToStaticString()
+    {
+        BEAST_EXPECT(to_static_string<long>(0) == "0");
+        BEAST_EXPECT(to_static_string<long>(1) == "1");
+        BEAST_EXPECT(to_static_string<long>(0xffff) == "65535");
+        BEAST_EXPECT(to_static_string<long>(0x10000) == "65536");
+        BEAST_EXPECT(to_static_string<long long>(0xffffffff) == "4294967295");
+
+        BEAST_EXPECT(to_static_string<long>(-1) == "-1");
+        BEAST_EXPECT(to_static_string<long>(-65535) == "-65535");
+        BEAST_EXPECT(to_static_string<long>(-65536) == "-65536");
+        BEAST_EXPECT(to_static_string<long long>(-4294967295ll) == "-4294967295");
+
+        BEAST_EXPECT(to_static_string<unsigned long>(0) == "0");
+        BEAST_EXPECT(to_static_string<unsigned long>(1) == "1");
+        BEAST_EXPECT(to_static_string<unsigned long>(0xffff) == "65535");
+        BEAST_EXPECT(to_static_string<unsigned long>(0x10000) == "65536");
+        BEAST_EXPECT(to_static_string<unsigned long>(0xffffffff) == "4294967295");
+    }
+
+    void
+    run() override
+    {
+        testConstruct();
+        testAssign();
+        testAccess();
+        testIterators();
+        testCapacity();
+        testOperations();
+        testCompare();
+        testSwap();
+
+        testGeneral();
+        testToStaticString();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,static_string);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/stream_tests.hpp b/src/boost/libs/beast/test/beast/core/stream_tests.hpp
new file mode 100644
index 000000000..67ad983eb
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/stream_tests.hpp
@@ -0,0 +1,107 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_STREAM_TESTS_HPP
+#define BOOST_BEAST_STREAM_TESTS_HPP
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/error.hpp>
+#include <boost/beast/core/stream_traits.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/asio/use_future.hpp>
+
+namespace boost {
+namespace beast {
+
+template<class SyncReadStream>
+void
+test_sync_read_stream()
+{
+    BOOST_ASSERT(is_sync_read_stream<SyncReadStream>::value);
+    BEAST_EXPECT(static_cast<
+        std::size_t(SyncReadStream::*)(net::mutable_buffer const&)>(
+        &SyncReadStream::template read_some<net::mutable_buffer>));
+    BEAST_EXPECT(static_cast<
+        std::size_t(SyncReadStream::*)(net::mutable_buffer const&, error_code&)>(
+        &SyncReadStream::template read_some<net::mutable_buffer>));
+}
+
+template<class SyncWriteStream>
+void
+test_sync_write_stream()
+{
+    BOOST_ASSERT(is_sync_write_stream<SyncWriteStream>::value);
+    BEAST_EXPECT(static_cast<
+        std::size_t(SyncWriteStream::*)(net::const_buffer const&)>(
+        &SyncWriteStream::template write_some<net::const_buffer>));
+    BEAST_EXPECT(static_cast<
+        std::size_t(SyncWriteStream::*)(net::const_buffer const&, error_code&)>(
+        &SyncWriteStream::template write_some<net::const_buffer>));
+}
+
+template<class SyncReadStream>
+void
+test_sync_stream()
+{
+    test_sync_read_stream<SyncReadStream>();
+    test_sync_write_stream<SyncReadStream>();
+}
+
+template<class AsyncReadStream>
+void
+test_async_read_stream()
+{
+    struct handler
+    {
+        void operator()(error_code, std::size_t)
+        {
+        }
+    };
+
+    BOOST_ASSERT(is_async_read_stream<AsyncReadStream>::value);
+    BEAST_EXPECT(&AsyncReadStream::get_executor);
+
+    // VFALCO These stopped working because of enable_if as the last parameter
+    //BEAST_EXPECT((&AsyncReadStream::template async_read_some<net::mutable_buffer, handler>));
+    //BEAST_EXPECT((&AsyncReadStream::template async_read_some<net::mutable_buffer, net::use_future_t<>>));
+    //BEAST_EXPECT((&AsyncReadStream::template async_read_some<net::mutable_buffer, net::yield_context>));
+}
+
+template<class AsyncWriteStream>
+void
+test_async_write_stream()
+{
+    struct handler
+    {
+        void operator()(error_code, std::size_t)
+        {
+        }
+    };
+
+    BOOST_ASSERT(is_async_write_stream<AsyncWriteStream>::value);
+    BEAST_EXPECT(&AsyncWriteStream::get_executor);
+    // VFALCO These stopped working because of enable_if as the last parameter
+    //BEAST_EXPECT((&AsyncWriteStream::template async_write_some<net::const_buffer, handler>));
+    //BEAST_EXPECT((&AsyncWriteStream::template async_write_some<net::const_buffer, net::use_future_t<>>));
+    //BEAST_EXPECT((&AsyncWriteStream::template async_write_some<net::const_buffer, net::yield_context>));
+}
+
+template<class AsyncStream>
+void
+test_async_stream()
+{
+    test_async_read_stream<AsyncStream>();
+    test_async_write_stream<AsyncStream>();
+}
+
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/stream_traits.cpp b/src/boost/libs/beast/test/beast/core/stream_traits.cpp
new file mode 100644
index 000000000..4498837ac
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/stream_traits.cpp
@@ -0,0 +1,381 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/stream_traits.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/error.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/write.hpp>
+#include <utility>
+
+namespace boost {
+namespace beast {
+
+class stream_traits_test
+    : public beast::unit_test::suite
+{
+public:
+    struct without
+    {
+        int dummy = 0;
+
+        without() = default;
+
+        template<class T>
+        std::size_t write_some(T const&)
+        {
+            return 0;
+        }
+
+        template<class T>
+        std::size_t write_some(T const&, boost::system::error_code&)
+        {
+            return 0;
+        }
+    };
+
+    template<class T>
+    struct with
+    {
+        T t;
+
+        with() = default;
+
+        T&
+        next_layer()
+        {
+            return t;
+        }
+
+        T const&
+        next_layer() const
+        {
+            return t;
+        }
+    };
+
+    BOOST_STATIC_ASSERT(
+        ! detail::has_next_layer<without>::value);
+
+    BOOST_STATIC_ASSERT(
+        detail::has_next_layer<with<without>>::value);
+
+    BOOST_STATIC_ASSERT(
+        detail::has_next_layer<with<with<without>>>::value);
+
+    void
+    testGetLowestLayer()
+    {
+        {
+            without w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w);
+        }
+        {
+            without const w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w);
+        }
+        {
+            with<without> w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w.t);
+        }
+        {
+            with<without> const w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w.t);
+        }
+        {
+            with<with<without>> w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w.t.t);
+        }
+        {
+            with<with<without>> const w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w.t.t);
+        }
+        {
+            with<with<with<without>>> w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w.t.t.t);
+        }
+        {
+            with<with<with<without>>> const w{};
+            BEAST_EXPECT(&get_lowest_layer(w) == &w.t.t.t);
+        }
+    }
+
+    //--------------------------------------------------------------------------
+/*
+    @par Example
+    This code implements a <em>SyncWriteStream</em> wrapper which calls
+    `std::terminate` upon any error.
+*/
+    template <class NextLayer>
+    class write_stream
+    {
+        NextLayer next_layer_;
+
+    public:
+        static_assert(is_sync_write_stream<NextLayer>::value,
+            "SyncWriteStream type requirements not met");
+
+        template<class... Args>
+        explicit
+        write_stream(Args&&... args)
+            : next_layer_(std::forward<Args>(args)...)
+        {
+        }
+
+        NextLayer& next_layer() noexcept
+        {
+            return next_layer_;
+        }
+
+        NextLayer const& next_layer() const noexcept
+        {
+            return next_layer_;
+        }
+
+        template<class ConstBufferSequence>
+        std::size_t
+        write_some(ConstBufferSequence const& buffers)
+        {
+            error_code ec;
+            auto const bytes_transferred = next_layer_.write_some(buffers, ec);
+            if(ec)
+                std::terminate();
+            return bytes_transferred;
+        }
+
+        template<class ConstBufferSequence>
+        std::size_t
+        write_some(ConstBufferSequence const& buffers, error_code& ec)
+        {
+            auto const bytes_transferred = next_layer_.write_some(buffers, ec);
+            if(ec)
+                std::terminate();
+            return bytes_transferred;
+        }
+    };
+    
+    void
+    testGetLowestLayerJavadoc()
+    {
+        write_stream<without> s;
+        BOOST_STATIC_ASSERT(
+            is_sync_write_stream<without>::value);
+        BOOST_STATIC_ASSERT(std::is_same<
+            decltype(get_lowest_layer(s)), without&>::value);
+
+#if 0
+        BEAST_EXPECT(static_cast<
+            std::size_t(type::*)(net::const_buffer)>(
+                &type::write_some<net::const_buffer>));
+#endif
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testExecutorType()
+    {
+    }
+
+    void
+    testExecutorTypeJavadoc()
+    {
+    }
+
+    //--------------------------------------------------------------------------
+
+    struct sync_read_stream
+    {
+        template<class MutableBufferSequence>
+        std::size_t read_some(MutableBufferSequence const&);
+        template<class MutableBufferSequence>
+        std::size_t read_some(MutableBufferSequence const&, error_code& ec);
+    };
+
+    struct sync_write_stream
+    {
+        template<class ConstBufferSequence>
+        std::size_t write_some(ConstBufferSequence const&);
+        template<class ConstBufferSequence>
+        std::size_t write_some(ConstBufferSequence const&, error_code&);
+    };
+
+    struct async_read_stream
+    {
+        net::io_context::executor_type get_executor() noexcept;
+        template<class MutableBufferSequence, class ReadHandler>
+        void async_read_some(MutableBufferSequence const&, ReadHandler&&);
+    };
+
+    struct async_write_stream
+    {
+        net::io_context::executor_type get_executor() noexcept;
+        template<class ConstBufferSequence, class WriteHandler>
+        void async_write_some(ConstBufferSequence const&, WriteHandler&&);
+    };
+
+    struct sync_stream : sync_read_stream, sync_write_stream
+    {
+    };
+
+    struct async_stream : async_read_stream, async_write_stream
+    {
+        net::io_context::executor_type get_executor() noexcept;
+        template<class MutableBufferSequence, class ReadHandler>
+        void async_read_some(MutableBufferSequence const&, ReadHandler&&);
+        template<class ConstBufferSequence, class WriteHandler>
+        void async_write_some(ConstBufferSequence const&, WriteHandler&&);
+    };
+
+    BOOST_STATIC_ASSERT(is_sync_read_stream<sync_read_stream>::value);
+    BOOST_STATIC_ASSERT(is_sync_read_stream<sync_stream>::value);
+    BOOST_STATIC_ASSERT(is_sync_write_stream<sync_write_stream>::value);
+    BOOST_STATIC_ASSERT(is_sync_write_stream<sync_stream>::value);
+    BOOST_STATIC_ASSERT(is_sync_stream<sync_stream>::value);
+
+    BOOST_STATIC_ASSERT(! is_sync_read_stream<sync_write_stream>::value);
+    BOOST_STATIC_ASSERT(! is_sync_write_stream<sync_read_stream>::value);
+    BOOST_STATIC_ASSERT(! is_sync_stream<async_stream>::value);
+
+    BOOST_STATIC_ASSERT(has_get_executor<async_read_stream>::value);
+    BOOST_STATIC_ASSERT(has_get_executor<async_write_stream>::value);
+    BOOST_STATIC_ASSERT(has_get_executor<async_stream>::value);
+
+    BOOST_STATIC_ASSERT(! has_get_executor<sync_read_stream>::value);
+    BOOST_STATIC_ASSERT(! has_get_executor<sync_write_stream>::value);
+    BOOST_STATIC_ASSERT(! has_get_executor<sync_stream>::value);
+
+    BOOST_STATIC_ASSERT(is_async_read_stream<async_read_stream>::value);
+    BOOST_STATIC_ASSERT(is_async_read_stream<async_stream>::value);
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1910)
+    BOOST_STATIC_ASSERT(is_async_write_stream<net::ip::tcp::socket>::value);
+#else
+    BOOST_STATIC_ASSERT(is_async_write_stream<async_write_stream>::value);
+#endif
+    BOOST_STATIC_ASSERT(is_async_write_stream<async_stream>::value);
+    BOOST_STATIC_ASSERT(is_async_stream<async_stream>::value);
+
+    BOOST_STATIC_ASSERT(! is_async_write_stream<async_read_stream>::value);
+    BOOST_STATIC_ASSERT(! is_async_read_stream<async_write_stream>::value);
+    BOOST_STATIC_ASSERT(! is_async_stream<sync_stream>::value);
+
+    //--------------------------------------------------------------------------
+
+    template<class T>
+    struct layer
+    {
+        T t;
+
+        template<class U>
+        explicit
+        layer(U&& u)
+            : t(std::forward<U>(u))
+        {
+        }
+
+        T& next_layer()
+        {
+            return t;
+        }
+    };
+
+    void
+    testClose()
+    {
+        net::io_context ioc;
+        {
+            net::ip::tcp::socket sock(ioc);
+            sock.open(net::ip::tcp::v4());
+            BEAST_EXPECT(sock.is_open());
+            close_socket(get_lowest_layer(sock));
+            BEAST_EXPECT(! sock.is_open());
+        }
+        {
+            using type = layer<net::ip::tcp::socket>;
+            type layer(ioc);
+            layer.next_layer().open(net::ip::tcp::v4());
+            BEAST_EXPECT(layer.next_layer().is_open());
+            BOOST_STATIC_ASSERT(detail::has_next_layer<type>::value);
+            BOOST_STATIC_ASSERT((std::is_same<
+                typename std::decay<decltype(get_lowest_layer(layer))>::type,
+                lowest_layer_type<decltype(layer)>>::value));
+            BOOST_STATIC_ASSERT(std::is_same<net::ip::tcp::socket&,
+                decltype(get_lowest_layer(layer))>::value);
+            BOOST_STATIC_ASSERT(std::is_same<net::ip::tcp::socket,
+                lowest_layer_type<decltype(layer)>>::value);
+            close_socket(get_lowest_layer(layer));
+            BEAST_EXPECT(! layer.next_layer().is_open());
+        }
+        {
+            test::stream ts(ioc);
+            close_socket(ts);
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    template <class WriteStream>
+    void hello_and_close (WriteStream& stream)
+    {
+        net::write(stream, net::const_buffer("Hello, world!", 13));
+        close_socket(get_lowest_layer(stream));
+    }
+
+    class my_socket
+    {
+        net::ip::tcp::socket sock_;
+
+    public:
+        my_socket(net::io_context& ioc)
+            : sock_(ioc)
+        {
+        }
+
+        friend void beast_close_socket(my_socket& s)
+        {
+            error_code ec;
+            s.sock_.close(ec);
+            // ignore the error
+        }
+    };
+
+    void
+    testCloseJavadoc()
+    {
+        BEAST_EXPECT(&stream_traits_test::template hello_and_close<net::ip::tcp::socket>);
+        {
+            net::io_context ioc;
+            my_socket s(ioc);
+            close_socket(s);
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    run() override
+    {
+        testGetLowestLayer();
+        testGetLowestLayerJavadoc();
+        testExecutorType();
+        testExecutorTypeJavadoc();
+        testClose();
+        testCloseJavadoc();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,stream_traits);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/string.cpp b/src/boost/libs/beast/test/beast/core/string.cpp
new file mode 100644
index 000000000..75818269d
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/string.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/string.hpp>
diff --git a/src/boost/libs/beast/test/beast/core/string_param.cpp b/src/boost/libs/beast/test/beast/core/string_param.cpp
new file mode 100644
index 000000000..395dea240
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/string_param.cpp
@@ -0,0 +1,83 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/string_param.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/detail/type_traits.hpp>
+
+namespace boost {
+namespace beast {
+
+class string_param_test : public unit_test::suite
+{
+public:
+    struct nop {};
+
+    void
+    check(string_param const& v, string_view s)
+    {
+        BEAST_EXPECT(static_cast<string_view>(v) == s);
+    }
+
+    class repeater
+    {
+        std::size_t n_;
+
+    public:
+        explicit
+        repeater(std::size_t n)
+            : n_(n)
+        {
+        }
+
+        friend
+        std::ostream&
+        operator<<(std::ostream& os, repeater const& v)
+        {
+            return os << std::string(v.n_, '*');
+        }
+    };
+
+    void
+    testConversion()
+    {
+        // Make sure things convert correctly
+        check(std::string("hello"), "hello");
+        check("xyz", "xyz");
+        check(1, "1");
+        check(12, "12");
+        check(123, "123");
+        check(1234, "1234");
+        check(12345, "12345");
+        check({"a", "b"}, "ab");
+        check({1, 2, 3}, "123");
+    }
+
+    void
+    testStaticOstream()
+    {
+        // exercise static_ostream for coverage
+        std::string s(500, '*');
+        check(repeater{500}, s);
+    }
+
+    void
+    run() override
+    {
+        testConversion();
+        testStaticOstream();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,string_param);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/tcp_stream.cpp b/src/boost/libs/beast/test/beast/core/tcp_stream.cpp
new file mode 100644
index 000000000..50e0ef2e1
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/tcp_stream.cpp
@@ -0,0 +1,45 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/core/tcp_stream.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+
+class tcp_stream_test
+    : public beast::unit_test::suite
+{
+public:
+    using tcp = net::ip::tcp;
+
+    void
+    testStream()
+    {
+        net::io_context ioc;
+        {
+            tcp::socket s(ioc);
+            tcp_stream s1(std::move(s));
+        }
+    }
+
+    void
+    run()
+    {
+        testStream();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,core,tcp_stream);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/core/test_buffer.hpp b/src/boost/libs/beast/test/beast/core/test_buffer.hpp
new file mode 100644
index 000000000..3b72dccf9
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/test_buffer.hpp
@@ -0,0 +1,599 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_BUFFER_HPP
+#define BOOST_BEAST_TEST_BUFFER_HPP
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/core/detail/type_traits.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/assert.hpp>
+#include <algorithm>
+#include <string>
+#include <type_traits>
+
+namespace boost {
+namespace beast {
+
+/** A MutableBufferSequence for tests, where length is always 3.
+*/
+class buffers_triple
+{
+    net::mutable_buffer b_[3];
+
+public:
+    using value_type = net::mutable_buffer;
+    using const_iterator = net::mutable_buffer const*;
+
+    buffers_triple(
+        buffers_triple const&) = default;
+
+    buffers_triple& operator=(
+        buffers_triple const&) = default;
+
+    buffers_triple(char* data, std::size_t size)
+    {
+        b_[0] = {data, size/6};
+        data += b_[0].size();
+        size -= b_[0].size();
+            
+        b_[1] = {data, 2*size/5};
+        data += b_[1].size();
+        size -= b_[1].size();
+
+        b_[2] = {data, size};
+
+        BOOST_ASSERT(b_[0].size() > 0);
+        BOOST_ASSERT(b_[1].size() > 0);
+        BOOST_ASSERT(b_[2].size() > 0);
+    }
+
+    bool
+    operator==(buffers_triple const& rhs) const noexcept
+    {
+        return
+            b_[0].data() == rhs.b_[0].data() &&
+            b_[0].size() == rhs.b_[0].size() &&
+            b_[1].data() == rhs.b_[1].data() &&
+            b_[1].size() == rhs.b_[1].size() &&
+            b_[2].data() == rhs.b_[2].data() &&
+            b_[2].size() == rhs.b_[2].size();
+    }
+
+    bool
+    operator!=(buffers_triple const& rhs) const noexcept
+    {
+        return !(*this == rhs);
+    }
+
+    const_iterator
+    begin() const noexcept
+    {
+        return &b_[0];
+    }
+
+    const_iterator
+    end() const noexcept
+    {
+        return &b_[3];
+    }
+};
+
+template<class ConstBufferSequence>
+std::size_t
+buffers_length(
+    ConstBufferSequence const& buffers)
+{
+    return std::distance(
+        net::buffer_sequence_begin(buffers),
+        net::buffer_sequence_end(buffers));
+}
+
+//------------------------------------------------------------------------------
+
+namespace detail {
+
+template<class MutableBufferSequence>
+void test_mutable_buffers(
+    MutableBufferSequence const&,
+    net::const_buffer)
+{
+}
+
+template<class MutableBufferSequence>
+void test_mutable_buffers(
+    MutableBufferSequence const& b,
+    net::mutable_buffer)
+{
+    string_view src = "Hello, world!";
+    BOOST_ASSERT(buffer_bytes(b) <= src.size());
+    if(src.size() > buffer_bytes(b))
+        src = {src.data(), buffer_bytes(b)};
+    net::buffer_copy(b, net::const_buffer(
+        src.data(), src.size()));
+    BEAST_EXPECT(beast::buffers_to_string(b) == src);
+}
+
+} // detail
+
+/** Test an instance of a constant or mutable buffer sequence.
+*/
+template<class ConstBufferSequence>
+void
+test_buffer_sequence(
+    ConstBufferSequence const& buffers)
+{
+    BOOST_STATIC_ASSERT(
+        net::is_const_buffer_sequence<
+            ConstBufferSequence>::value);
+
+    using iterator = decltype(
+        net::buffer_sequence_begin(buffers));
+    BEAST_EXPECT(sizeof(iterator) > 0);
+
+    auto const size = buffer_bytes(buffers);
+    BEAST_EXPECT(size > 0 );
+
+    // begin, end
+    auto const length = std::distance(
+        net::buffer_sequence_begin(buffers),
+        net::buffer_sequence_end(buffers));
+    BEAST_EXPECT(length > 0);
+    BEAST_EXPECT(
+        net::buffer_sequence_begin(buffers) !=
+        net::buffer_sequence_end(buffers));
+
+    // copy construction
+    ConstBufferSequence b1(buffers);
+    BEAST_EXPECT(buffer_bytes(b1) == size);
+
+    // copy assignment
+    ConstBufferSequence b2(buffers);
+    b2 = b1;
+    BEAST_EXPECT(buffer_bytes(b2) == size);
+
+    // iterators
+    {
+        iterator it1{};
+        iterator it2{};
+        iterator it3 =
+            net::buffer_sequence_begin(buffers);
+        iterator it4 =
+            net::buffer_sequence_end(buffers);
+        BEAST_EXPECT(it1 == it2);
+        BEAST_EXPECT(it1 != it3);
+        BEAST_EXPECT(it3 != it1);
+        BEAST_EXPECT(it1 != it4);
+        BEAST_EXPECT(it4 != it1);
+    }
+
+    // bidirectional
+    {
+        auto const first =
+            net::buffer_sequence_begin(buffers);
+        auto const last =
+            net::buffer_sequence_end(buffers);
+        std::size_t n, m;
+        iterator it;
+
+        // pre-increment
+        m = 0;
+        n = length;
+        for(it = first; n--; ++it)
+            m += buffer_bytes(*it);
+        BEAST_EXPECT(it == last);
+        BEAST_EXPECT(m == size);
+
+        // post-increment
+        m = 0;
+        n = length;
+        for(it = first; n--;)
+            m += buffer_bytes(*it++);
+        BEAST_EXPECT(it == last);
+        BEAST_EXPECT(m == size);
+
+        // pre-decrement
+        m = 0;
+        n = length;
+        for(it = last; n--;)
+            m += buffer_bytes(*--it);
+        BEAST_EXPECT(it == first);
+        BEAST_EXPECT(m == size);
+
+        // post-decrement
+        m = 0;
+        n = length;
+        for(it = last; n--;)
+        {
+            it--;
+            m += buffer_bytes(*it);
+        }
+        BEAST_EXPECT(it == first);
+        BEAST_EXPECT(m == size);
+    }
+
+    detail::test_mutable_buffers(buffers,
+        buffers_type<ConstBufferSequence>{});
+}
+
+//------------------------------------------------------------------------------
+
+/** Metafunction to determine if a type meets the requirements of MutableDynamicBuffer_v0
+*/
+/* @{ */
+// VFALCO This trait needs tests
+template<class T, class = void>
+struct is_mutable_dynamic_buffer
+    : std::false_type
+{
+};
+
+template<class T>
+struct is_mutable_dynamic_buffer<T, detail::void_t<decltype(
+    std::declval<typename T::const_buffers_type&>() =
+        std::declval<T const&>().data(),
+    std::declval<typename T::const_buffers_type&>() =
+        std::declval<T&>().cdata(),
+    std::declval<typename T::mutable_buffers_type&>() =
+        std::declval<T&>().data()
+    ) > > : net::is_dynamic_buffer_v1<T>
+{
+};
+/** @} */
+
+namespace detail {
+
+template<class MutableBufferSequence>
+void
+buffers_fill(
+    MutableBufferSequence const& buffers,
+    char c)
+{
+    auto const end =
+        net::buffer_sequence_end(buffers);
+    for(auto it = net::buffer_sequence_begin(buffers);
+        it != end; ++it)
+    {
+        net::mutable_buffer b(*it);
+        std::fill(
+            static_cast<char*>(b.data()),
+            static_cast<char*>(b.data()) + b.size(), c);
+    }
+}
+
+template<class MutableDynamicBuffer_v0>
+void
+test_mutable_dynamic_buffer(
+    MutableDynamicBuffer_v0 const&,
+    std::false_type)
+{
+}
+
+template<class MutableDynamicBuffer_v0>
+void
+test_mutable_dynamic_buffer(
+    MutableDynamicBuffer_v0 const& b0,
+    std::true_type)
+{
+    BOOST_STATIC_ASSERT(
+        net::is_mutable_buffer_sequence<typename
+            MutableDynamicBuffer_v0::mutable_buffers_type>::value);
+
+    BOOST_STATIC_ASSERT(
+        std::is_convertible<
+            typename MutableDynamicBuffer_v0::mutable_buffers_type,
+            typename MutableDynamicBuffer_v0::const_buffers_type>::value);
+
+    string_view src = "Hello, world!";
+    if(src.size() > b0.max_size())
+        src = {src.data(), b0.max_size()};
+
+    // modify readable bytes
+    {
+        MutableDynamicBuffer_v0 b(b0);
+        auto const mb = b.prepare(src.size());
+        BEAST_EXPECT(buffer_bytes(mb) == src.size());
+        buffers_fill(mb, '*');
+        b.commit(src.size());
+        BEAST_EXPECT(b.size() == src.size());
+        BEAST_EXPECT(
+            beast::buffers_to_string(b.data()) ==
+            std::string(src.size(), '*'));
+        BEAST_EXPECT(
+            beast::buffers_to_string(b.cdata()) ==
+            std::string(src.size(), '*'));
+        auto const n = net::buffer_copy(
+            b.data(), net::const_buffer(
+                src.data(), src.size()));
+        BEAST_EXPECT(n == src.size());
+        BEAST_EXPECT(
+            beast::buffers_to_string(b.data()) == src);
+        BEAST_EXPECT(
+            beast::buffers_to_string(b.cdata()) == src);
+    }
+
+    // mutable to const sequence conversion
+    {
+        MutableDynamicBuffer_v0 b(b0);
+        b.commit(net::buffer_copy(
+            b.prepare(src.size()),
+            net::const_buffer(src.data(), src.size())));
+        auto mb = b.data();
+        auto cb = static_cast<
+            MutableDynamicBuffer_v0 const&>(b).data();
+        auto cbc = b.cdata();
+        BEAST_EXPECT(
+            beast::buffers_to_string(b.data()) == src);
+        BEAST_EXPECT(
+            beast::buffers_to_string(b.cdata()) == src);
+        beast::test_buffer_sequence(cb);
+        beast::test_buffer_sequence(cbc);
+        beast::test_buffer_sequence(mb);
+        {
+            decltype(mb)  mb2(mb);
+            mb = mb2;
+            decltype(cb)  cb2(cb);
+            cb = cb2;
+            decltype(cbc) cbc2(cbc);
+            cbc = cbc2;
+        }
+        {
+            decltype(cb)  cb2(mb);
+            decltype(cbc) cbc2(mb);
+            cb2 = mb;
+            cbc2 = mb;
+        }
+    }
+}
+
+} // detail
+
+/** Test an instance of a dynamic buffer or mutable dynamic buffer.
+*/
+template<class DynamicBuffer_v0>
+void
+test_dynamic_buffer(
+    DynamicBuffer_v0 const& b0)
+{
+    BOOST_STATIC_ASSERT(
+        net::is_dynamic_buffer_v1<DynamicBuffer_v0>::value);
+
+    BOOST_STATIC_ASSERT(
+        net::is_const_buffer_sequence<typename
+            DynamicBuffer_v0::const_buffers_type>::value);
+
+    BOOST_STATIC_ASSERT(
+        net::is_mutable_buffer_sequence<typename
+            DynamicBuffer_v0::mutable_buffers_type>::value);
+
+    BEAST_EXPECT(b0.size() == 0);
+    BEAST_EXPECT(buffer_bytes(b0.data()) == 0);
+
+    // members
+    {
+        string_view src = "Hello, world!";
+
+        DynamicBuffer_v0 b1(b0);
+        auto const mb = b1.prepare(src.size());
+        b1.commit(net::buffer_copy(mb,
+            net::const_buffer(src.data(), src.size())));
+
+        // copy constructor
+        {
+            DynamicBuffer_v0 b2(b1);
+            BEAST_EXPECT(b2.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b1.data()) ==
+                buffers_to_string(b2.data()));
+
+            // https://github.com/boostorg/beast/issues/1621
+            b2.consume(1);
+            DynamicBuffer_v0 b3(b2);
+            BEAST_EXPECT(b3.size() == b2.size());
+            BEAST_EXPECT(
+                buffers_to_string(b2.data()) ==
+                buffers_to_string(b3.data()));
+        }
+
+        // move constructor
+        {
+            DynamicBuffer_v0 b2(b1);
+            DynamicBuffer_v0 b3(std::move(b2));
+            BEAST_EXPECT(b3.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b3.data()) ==
+                buffers_to_string(b1.data()));
+        }
+
+        // copy assignment
+        {
+            DynamicBuffer_v0 b2(b0);
+            b2 = b1;
+            BEAST_EXPECT(b2.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b1.data()) ==
+                buffers_to_string(b2.data()));
+
+            // self assignment
+            b2 = *&b2;
+            BEAST_EXPECT(b2.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b2.data()) ==
+                buffers_to_string(b1.data()));
+
+            // https://github.com/boostorg/beast/issues/1621
+            b2.consume(1);
+            DynamicBuffer_v0 b3(b2);
+            BEAST_EXPECT(b3.size() == b2.size());
+            BEAST_EXPECT(
+                buffers_to_string(b2.data()) ==
+                buffers_to_string(b3.data()));
+
+        }
+
+        // move assignment
+        {
+            DynamicBuffer_v0 b2(b1);
+            DynamicBuffer_v0 b3(b0);
+            b3 = std::move(b2);
+            BEAST_EXPECT(b3.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b3.data()) ==
+                buffers_to_string(b1.data()));
+
+            // self move
+            b3 = std::move(b3);
+            BEAST_EXPECT(b3.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b3.data()) ==
+                buffers_to_string(b1.data()));
+        }
+
+        // swap
+        {
+            DynamicBuffer_v0 b2(b1);
+            DynamicBuffer_v0 b3(b0);
+            BEAST_EXPECT(b2.size() == b1.size());
+            BEAST_EXPECT(b3.size() == b0.size());
+            using std::swap;
+            swap(b2, b3);
+            BEAST_EXPECT(b2.size() == b0.size());
+            BEAST_EXPECT(b3.size() == b1.size());
+            BEAST_EXPECT(
+                buffers_to_string(b3.data()) ==
+                buffers_to_string(b1.data()));
+        }
+    }
+
+    // n == 0
+    {
+        DynamicBuffer_v0 b(b0);
+        b.commit(1);
+        BEAST_EXPECT(b.size() == 0);
+        BEAST_EXPECT(buffer_bytes(b.prepare(0)) == 0);
+        b.commit(0);
+        BEAST_EXPECT(b.size() == 0);
+        b.commit(1);
+        BEAST_EXPECT(b.size() == 0);
+        b.commit(b.max_size() + 1);
+        BEAST_EXPECT(b.size() == 0);
+        b.consume(0);
+        BEAST_EXPECT(b.size() == 0);
+        b.consume(1);
+        BEAST_EXPECT(b.size() == 0);
+        b.consume(b.max_size() + 1);
+        BEAST_EXPECT(b.size() == 0);
+    }
+
+    // max_size
+    {
+        DynamicBuffer_v0 b(b0);
+        if(BEAST_EXPECT(
+            b.max_size() + 1 > b.max_size()))
+        {
+            try
+            {
+                b.prepare(b.max_size() + 1);
+                BEAST_FAIL();
+            }
+            catch(std::length_error const&)
+            {
+                BEAST_PASS();
+            }
+            catch(...)
+            {
+                BEAST_FAIL();
+            }
+        }
+    }
+
+    // setup source buffer
+    char buf[13];
+    unsigned char k0 = 0;
+    string_view src(buf, sizeof(buf));
+    if(src.size() > b0.max_size())
+        src = {src.data(), b0.max_size()};
+    BEAST_EXPECT(b0.max_size() >= src.size());
+    BEAST_EXPECT(b0.size() == 0);
+    BEAST_EXPECT(buffer_bytes(b0.data()) == 0);
+    auto const make_new_src =
+        [&buf, &k0, &src]
+        {
+            auto k = k0++;
+            for(std::size_t i = 0; i < src.size(); ++i)
+                buf[i] = k++;
+        };
+
+    // readable / writable buffer sequence tests
+    {
+        make_new_src();
+        DynamicBuffer_v0 b(b0);
+        auto const& bc(b);
+        auto const mb = b.prepare(src.size());
+        BEAST_EXPECT(buffer_bytes(mb) == src.size());
+        beast::test_buffer_sequence(mb);
+        b.commit(net::buffer_copy(mb,
+            net::const_buffer(src.data(), src.size())));
+        BEAST_EXPECT(
+            buffer_bytes(bc.data()) == src.size());
+        beast::test_buffer_sequence(bc.data());
+    }
+
+    // h = in size
+    // i = prepare size
+    // j = commit size
+    // k = consume size
+    for(std::size_t h = 1; h <= src.size(); ++h)
+    {
+        string_view in(src.data(), h);
+        for(std::size_t i = 1; i <= in.size(); ++i) {
+        for(std::size_t j = 1; j <= i + 1; ++j) {
+        for(std::size_t k = 1; k <= in.size(); ++k) {
+        {
+            make_new_src();
+
+            DynamicBuffer_v0 b(b0);
+            auto const& bc(b);
+            net::const_buffer cb(in.data(), in.size());
+            while(cb.size() > 0)
+            {
+                auto const mb = b.prepare(
+                    std::min<std::size_t>(i,
+                        b.max_size() - b.size()));
+                auto const n = net::buffer_copy(mb,
+                    net::const_buffer(cb.data(),
+                        std::min<std::size_t>(j, cb.size())));
+                b.commit(n);
+                cb += n;
+            }
+            BEAST_EXPECT(b.size() == in.size());
+            BEAST_EXPECT(
+                buffer_bytes(bc.data()) == in.size());
+            BEAST_EXPECT(beast::buffers_to_string(
+                bc.data()) == in);
+            while(b.size() > 0)
+                b.consume(k);
+            BEAST_EXPECT(buffer_bytes(bc.data()) == 0);
+        }
+        } } }
+    }
+
+    // MutableDynamicBuffer_v0 refinement
+    detail::test_mutable_dynamic_buffer(b0,
+        is_mutable_dynamic_buffer<DynamicBuffer_v0>{});
+}
+
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/test_executor.hpp b/src/boost/libs/beast/test/beast/core/test_executor.hpp
new file mode 100644
index 000000000..6c65c77f5
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/test_executor.hpp
@@ -0,0 +1,122 @@
+//
+// Copyright (c) 2018 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_TEST_EXECUTOR_HPP
+#define BOOST_BEAST_TEST_TEST_EXECUTOR_HPP
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/io_context.hpp>
+#include <memory>
+
+namespace boost {
+namespace beast {
+
+template<class Executor = net::io_context::executor_type>
+class test_executor
+{
+public:
+    // VFALCO These need to be atomic or something
+    struct info
+    {
+        int dispatch = 0;
+        int post = 0;
+        int defer = 0;
+        int work = 0;
+        int total = 0;
+    };
+
+private:
+    struct state
+    {
+        Executor ex;
+        info info_;
+
+        state(Executor const& ex_)
+            : ex(ex_)
+        {
+        }
+    };
+
+    std::shared_ptr<state> sp_;
+
+public:
+    test_executor(test_executor const&) = default;
+    test_executor& operator=(test_executor const&) = default;
+
+    explicit
+    test_executor(Executor const& ex)
+        : sp_(std::make_shared<state>(ex))
+    {
+    }
+
+    decltype(sp_->ex.context())
+    context() const noexcept
+    {
+        return sp_->ex.context();
+    }
+
+    info&
+    operator*() noexcept
+    {
+        return sp_->info_;
+    }
+
+    info*
+    operator->() noexcept
+    {
+        return &sp_->info_;
+    }
+
+    void
+    on_work_started() const noexcept
+    {
+        ++sp_->info_.work;
+    }
+
+    void
+    on_work_finished() const noexcept
+    {
+    }
+
+    template<class F, class A>
+    void
+    dispatch(F&& f, A const& a) const
+    {
+        ++sp_->info_.dispatch;
+        ++sp_->info_.total;
+        sp_->ex.dispatch(
+            std::forward<F>(f), a);
+    }
+
+    template<class F, class A>
+    void
+    post(F&& f, A const& a) const
+    {
+        ++sp_->info_.post;
+        ++sp_->info_.total;
+        sp_->ex.post(
+            std::forward<F>(f), a);
+    }
+
+    template<class F, class A>
+    void
+    defer(F&& f, A const& a) const
+    {
+        ++sp_->info_.defer;
+        ++sp_->info_.total;
+        sp_->ex.defer(
+            std::forward<F>(f), a);
+    }
+};
+
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/test_handler.hpp b/src/boost/libs/beast/test/beast/core/test_handler.hpp
new file mode 100644
index 000000000..1e33d46e6
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/test_handler.hpp
@@ -0,0 +1,231 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_HANDLER_XXX_HPP
+#define BOOST_BEAST_TEST_HANDLER_XXX_HPP
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/associated_allocator.hpp>
+#include <boost/asio/associated_executor.hpp>
+#include <boost/asio/handler_alloc_hook.hpp>
+#include <boost/asio/handler_continuation_hook.hpp>
+#include <boost/asio/handler_invoke_hook.hpp>
+
+namespace boost {
+namespace beast {
+
+class simple_allocator
+{
+    std::size_t id_;
+
+public:
+    simple_allocator()
+        : id_([]
+        {
+            static std::size_t n = 0;
+            return ++n;
+        }())
+    {
+    }
+
+    friend
+    bool operator==(
+        simple_allocator const& lhs,
+        simple_allocator const& rhs) noexcept
+    {
+        return lhs.id_ == rhs.id_;
+    }
+
+    friend
+    bool operator!=(
+        simple_allocator const& lhs,
+        simple_allocator const& rhs) noexcept
+    {
+        return lhs.id_ != rhs.id_;
+    }
+};
+
+class simple_executor
+{
+    std::size_t id_;
+
+public:
+    simple_executor()
+        : id_([]
+        {
+            static std::size_t n = 0;
+            return ++n;
+        }())
+    {
+    }
+
+    void* context() { return nullptr; }
+    void on_work_started() {}
+    void on_work_finished() {}
+    template<class F> void dispatch(F&&) {}
+    template<class F> void post(F&&) {}
+    template<class F> void defer(F&&) {}
+
+    friend
+    bool operator==(
+        simple_executor const& lhs,
+        simple_executor const& rhs) noexcept
+    {
+        return lhs.id_ == rhs.id_;
+    }
+
+    friend
+    bool operator!=(
+        simple_executor const& lhs,
+        simple_executor const& rhs) noexcept
+    {
+        return lhs.id_ != rhs.id_;
+    }
+};
+
+// A move-only handler
+struct move_only_handler
+{
+    move_only_handler() = default;
+    move_only_handler(move_only_handler&&) = default;
+    move_only_handler(move_only_handler const&) = delete;
+    void operator()() const{};
+};
+
+// Used to test the legacy handler hooks
+struct legacy_handler
+{
+    bool& hook_invoked;
+
+    simple_executor
+    get_executor() const noexcept
+    {
+        return {};
+    };
+
+    // Signature of `f` is H<legacy_handler> where H is the wrapper to test
+    template<class F>
+    static
+    void
+    test(F const& f)
+    {
+        {
+            bool hook_invoked = false;
+            bool lambda_invoked = false;
+            auto h = f(legacy_handler{hook_invoked});
+            using net::asio_handler_invoke;
+            asio_handler_invoke(
+                [&lambda_invoked]
+                {
+                    lambda_invoked =true;
+                }, &h);
+            BEAST_EXPECT(hook_invoked);
+            BEAST_EXPECT(lambda_invoked);
+        }
+        {
+            bool hook_invoked = false;
+            auto h = f(legacy_handler{hook_invoked});
+            using net::asio_handler_allocate;
+            asio_handler_allocate(0, &h);
+            BEAST_EXPECT(hook_invoked);
+        }
+        {
+            bool hook_invoked = false;
+            auto h = f(legacy_handler{hook_invoked});
+            using net::asio_handler_deallocate;
+            asio_handler_deallocate(nullptr, 0, &h);
+            BEAST_EXPECT(hook_invoked);
+        }
+        {
+            bool hook_invoked = false;
+            auto h = f(legacy_handler{hook_invoked});
+            using net::asio_handler_is_continuation;
+            asio_handler_is_continuation(&h);
+            BEAST_EXPECT(hook_invoked);
+        }
+    }
+};
+
+template<class Function>
+void
+asio_handler_invoke(
+    Function&& f,
+    legacy_handler* p)
+{
+    p->hook_invoked = true;
+    f();
+}
+
+inline
+void*
+asio_handler_allocate(
+    std::size_t,
+    legacy_handler* p)
+{
+    p->hook_invoked = true;
+    return nullptr;
+}
+
+inline
+void
+asio_handler_deallocate(
+    void*, std::size_t,
+    legacy_handler* p)
+{
+    p->hook_invoked = true;
+}
+
+inline
+bool
+asio_handler_is_continuation(
+    legacy_handler* p)
+{
+    p->hook_invoked = true;
+    return false;
+}
+
+} // beast
+} // boost
+
+namespace boost {
+namespace asio {
+
+template<class Allocator>
+struct associated_allocator<
+    boost::beast::legacy_handler, Allocator>
+{
+    using type = std::allocator<int>;
+
+    static type get(
+        boost::beast::legacy_handler const&,
+        Allocator const& = Allocator()) noexcept
+    {
+        return type{};
+    }
+};
+
+template<class Executor>
+struct associated_executor<
+    boost::beast::legacy_handler, Executor>
+{
+    using type = boost::beast::simple_executor;
+
+    static type get(
+        boost::beast::legacy_handler const&,
+        Executor const& = Executor()) noexcept
+    {
+        return type{};
+    }
+};
+
+} // asio
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/core/zlib.cpp b/src/boost/libs/beast/test/beast/core/zlib.cpp
new file mode 100644
index 000000000..6662e61c7
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/core/zlib.cpp
@@ -0,0 +1,235 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <beast/detail/zlib/deflate_stream.hpp>
+#include <beast/detail/zlib/inflate_stream.hpp>
+
+#include <beast/unit_test/suite.hpp>
+#include <array>
+#include <cassert>
+#include <memory>
+#include <random>
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class zlib_test : public beast::unit_test::suite
+{
+public:
+    class buffer
+    {
+        std::size_t size_ = 0;
+        std::size_t capacity_ = 0;
+        std::unique_ptr<std::uint8_t[]> p_;
+
+    public:
+        buffer() = default;
+        buffer(buffer&&) = default;
+        buffer& operator=(buffer&&) = default;
+
+
+        explicit
+        buffer(std::size_t capacity)
+        {
+            reserve(capacity);
+        }
+
+        bool
+        empty() const
+        {
+            return size_ == 0;
+        }
+
+        std::size_t
+        size() const
+        {
+            return size_;
+        }
+
+        std::size_t
+        capacity() const
+        {
+            return capacity_;
+        }
+
+        std::uint8_t const*
+        data() const
+        {
+            return p_.get();
+        }
+
+        std::uint8_t*
+        data()
+        {
+            return p_.get();
+        }
+
+        void
+        reserve(std::size_t capacity)
+        {
+            if(capacity != capacity_)
+            {
+                p_.reset(new std::uint8_t[capacity]);
+                capacity_ = capacity;
+            }
+        }
+
+        void
+        resize(std::size_t size)
+        {
+            assert(size <= capacity_);
+            size_ = size;
+        }
+    };
+
+    buffer
+    make_source1(std::size_t size)
+    {
+        std::mt19937 rng;
+        buffer b(size);
+        auto p = b.data();
+        std::size_t n = 0;
+        static std::string const chars(
+            "01234567890{}\"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+            "{{{{{{{{{{}}}}}}}}}}  ");
+        while(n < size)
+        {
+            *p++ = chars[rng()%chars.size()];
+            ++n;
+        }
+        b.resize(n);
+        return b;
+    }
+
+    buffer
+    make_source2(std::size_t size)
+    {
+        std::mt19937 rng;
+        std::array<double, 2> const i{0, 65535};
+        std::array<double, 2> const w{0, 1};
+        std::piecewise_linear_distribution<double> d(
+            i.begin(), i.end(), w.begin());
+        buffer b(size);
+        auto p = b.data();
+        std::size_t n = 0;
+        while(n < size)
+        {
+            if(n == 1)
+            {
+                *p++ = rng()%256;
+                ++n;
+                continue;
+            }
+            auto const v = static_cast<std::uint16_t>(d(rng));
+            *p++ = v>>8;
+            *p++ = v&0xff;
+            n += 2;
+
+        }
+        b.resize(n);
+        return b;
+    }
+
+    void
+    checkInflate(buffer const& input, buffer const& original)
+    {
+        for(std::size_t i = 0; i < input.size(); ++i)
+        {
+            buffer output(original.size());
+            inflate_stream zs;
+            zs.avail_in = 0;
+            zs.next_in = 0;
+            zs.next_out = output.data();
+            zs.avail_out = output.capacity();
+            if(i > 0)
+            {
+                zs.next_in = (Byte*)input.data();
+                zs.avail_in = i;
+                auto result = zs.write(Z_FULL_FLUSH);
+                expect(result == Z_OK);
+            }
+            zs.next_in = (Byte*)input.data() + i;
+            zs.avail_in = input.size() - i;
+            auto result = zs.write(Z_FULL_FLUSH);
+            output.resize(output.capacity() - zs.avail_out);
+            expect(result == Z_OK);
+            expect(output.size() == original.size());
+            expect(std::memcmp(
+                output.data(), original.data(), original.size()) == 0);
+        }
+    }
+
+    void testSpecial()
+    {
+        {
+            deflate_stream zs;
+        }
+        {
+            inflate_stream zs;
+        }
+    }
+
+    void testCompress()
+    {
+        static std::size_t constexpr N = 2048;
+        for(int source = 0; source <= 1; ++source)
+        {
+            buffer original;
+            switch(source)
+            {
+            case 0:
+                original = make_source1(N);
+                break;
+            case 1:
+                original = make_source2(N);
+                break;
+            }
+            for(int level = 0; level <= 9; ++level)
+            {
+                for(int strategy = 0; strategy <= 4; ++strategy)
+                {
+                    for(int wbits = 15; wbits <= 15; ++wbits)
+                    {
+                        deflate_stream zs;
+                        zs.avail_in = 0;
+                        zs.next_in = 0;
+                        expect(deflate_stream::deflateInit2(&zs,
+                            level,
+                            wbits,
+                            4,
+                            strategy) == Z_OK);
+                        buffer output(deflate_stream::deflateBound(&zs, original.size()));
+                        zs.next_in = (Byte*)original.data();
+                        zs.avail_in = original.size();
+                        zs.next_out = output.data();
+                        zs.avail_out = output.capacity();
+                        auto result = zs.deflate(Z_FULL_FLUSH);
+                        expect(result == Z_OK);
+                        output.resize(output.capacity() - zs.avail_out);
+                        checkInflate(output, original);
+                    }
+                }
+            }
+        }
+    }
+
+    void run() override
+    {
+        testSpecial();
+        testCompress();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(zlib,core,beast);
+
+} // zlib
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http.cpp b/src/boost/libs/beast/test/beast/http.cpp
new file mode 100644
index 000000000..bd630abcb
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// If including Windows.h generates errors, it
+// means that min/max macros are being substituted.
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/http.hpp>
diff --git a/src/boost/libs/beast/test/beast/http/CMakeLists.txt b/src/boost/libs/beast/test/beast/http/CMakeLists.txt
new file mode 100644
index 000000000..ac48fd36a
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/CMakeLists.txt
@@ -0,0 +1,52 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/extras/include/boost/beast extras)
+GroupSources (test/beast/http "/")
+
+add_executable (tests-beast-http
+    ${BOOST_BEAST_FILES}
+    ${EXTRAS_FILES}
+    Jamfile
+    message_fuzz.hpp
+    test_parser.hpp
+    basic_dynamic_body.cpp
+    basic_file_body.cpp
+    basic_parser.cpp
+    buffer_body.cpp
+    chunk_encode.cpp
+    dynamic_body.cpp
+    empty_body.cpp
+    error.cpp
+    field.cpp
+    fields.cpp
+    file_body.cpp
+    message.cpp
+    parser.cpp
+    read.cpp
+    rfc7230.cpp
+    serializer.cpp
+    span_body.cpp
+    status.cpp
+    string_body.cpp
+    type_traits.cpp
+    vector_body.cpp
+    verb.cpp
+    write.cpp
+)
+
+target_link_libraries(tests-beast-http
+    lib-asio
+    lib-asio-ssl
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-beast-http PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/http/Jamfile b/src/boost/libs/beast/test/beast/http/Jamfile
new file mode 100644
index 000000000..f96155d6e
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/Jamfile
@@ -0,0 +1,57 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    basic_dynamic_body.cpp
+    basic_file_body.cpp
+    basic_parser.cpp
+    buffer_body.cpp
+    chunk_encode.cpp
+    dynamic_body.cpp
+    error.cpp
+    field.cpp
+    fields.cpp
+    file_body.cpp
+    message.cpp
+    parser.cpp
+    read.cpp
+    rfc7230.cpp
+    serializer.cpp
+    span_body.cpp
+    status.cpp
+    string_body.cpp
+    type_traits.cpp
+    vector_body.cpp
+    verb.cpp
+    write.cpp
+    ;
+
+local RUN_TESTS ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f)
+        /boost/beast/test//lib-test
+    ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
+
+exe fat-tests :
+    $(SOURCES)
+    /boost/beast/test//lib-test
+    ;
+
+explicit fat-tests ;
+
+run $(SOURCES)
+    /boost/beast/test//lib-test
+    : : : : run-fat-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/http/basic_dynamic_body.cpp b/src/boost/libs/beast/test/beast/http/basic_dynamic_body.cpp
new file mode 100644
index 000000000..8f945c484
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/basic_dynamic_body.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/basic_dynamic_body.hpp>
diff --git a/src/boost/libs/beast/test/beast/http/basic_file_body.cpp b/src/boost/libs/beast/test/beast/http/basic_file_body.cpp
new file mode 100644
index 000000000..79710bbeb
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/basic_file_body.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/basic_file_body.hpp>
diff --git a/src/boost/libs/beast/test/beast/http/basic_parser.cpp b/src/boost/libs/beast/test/beast/http/basic_parser.cpp
new file mode 100644
index 000000000..f4073b745
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/basic_parser.cpp
@@ -0,0 +1,1414 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/basic_parser.hpp>
+
+#include "message_fuzz.hpp"
+#include "test_parser.hpp"
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_cat.hpp>
+#include <boost/beast/core/buffers_prefix.hpp>
+#include <boost/beast/core/buffers_suffix.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/http/parser.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/test/fuzz.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class basic_parser_test : public beast::unit_test::suite
+{
+public:
+    enum parse_flag
+    {
+        chunked               =   1,
+        connection_keep_alive =   2,
+        connection_close      =   4,
+        connection_upgrade    =   8,
+        upgrade               =  16,
+    };
+
+    class expect_version
+    {
+        suite& s_;
+        int version_;
+
+    public:
+        expect_version(suite& s, int version)
+            : s_(s)
+            , version_(version)
+        {
+        }
+
+        template<class Parser>
+        void
+        operator()(Parser const& p) const
+        {
+            s_.BEAST_EXPECT(p.version == version_);
+        }
+    };
+
+    class expect_status
+    {
+        suite& s_;
+        int status_;
+
+    public:
+        expect_status(suite& s, int status)
+            : s_(s)
+            , status_(status)
+        {
+        }
+
+        template<class Parser>
+        void
+        operator()(Parser const& p) const
+        {
+            s_.BEAST_EXPECT(p.status == status_);
+        }
+    };
+
+    class expect_flags
+    {
+        suite& s_;
+        unsigned flags_;
+
+    public:
+        expect_flags(suite& s, unsigned flags)
+            : s_(s)
+            , flags_(flags)
+        {
+        }
+
+        template<class Parser>
+        void
+        operator()(Parser const& p) const
+        {
+            if(flags_ & parse_flag::chunked)
+                s_.BEAST_EXPECT(p.chunked());
+            if(flags_ & parse_flag::connection_keep_alive)
+                s_.BEAST_EXPECT(p.keep_alive());
+            if(flags_ & parse_flag::connection_close)
+                s_.BEAST_EXPECT(! p.keep_alive());
+            if(flags_ & parse_flag::upgrade)
+                s_.BEAST_EXPECT(! p.upgrade());
+        }
+    };
+
+    class expect_keepalive
+    {
+        suite& s_;
+        bool v_;
+
+    public:
+        expect_keepalive(suite& s, bool v)
+            : s_(s)
+            , v_(v)
+        {
+        }
+
+        template<class Parser>
+        void
+        operator()(Parser const& p) const
+        {
+            s_.BEAST_EXPECT(p.keep_alive() == v_);
+        }
+    };
+
+    class expect_body
+    {
+        suite& s_;
+        std::string const& body_;
+
+    public:
+        expect_body(expect_body&&) = default;
+
+        expect_body(suite& s, std::string const& v)
+            : s_(s)
+            , body_(v)
+        {
+        }
+
+        template<class Parser>
+        void
+        operator()(Parser const& p) const
+        {
+            s_.BEAST_EXPECT(p.body == body_);
+        }
+    };
+
+    //--------------------------------------------------------------------------
+
+    template<class Parser, class ConstBufferSequence, class Test>
+    typename std::enable_if<
+        net::is_const_buffer_sequence<ConstBufferSequence>::value>::type
+    parsegrind(ConstBufferSequence const& buffers,
+        Test const& test, bool skip = false)
+    {
+        auto const size = buffer_bytes(buffers);
+        for(std::size_t i = 1; i < size - 1; ++i)
+        {
+            Parser p;
+            p.eager(true);
+            p.skip(skip);
+            error_code ec;
+            buffers_suffix<ConstBufferSequence> cb{buffers};
+            auto n = p.put(buffers_prefix(i, cb), ec);
+            if(! BEAST_EXPECTS(! ec ||
+                    ec == error::need_more, ec.message()))
+                continue;
+            if(! BEAST_EXPECT(! p.is_done()))
+                continue;
+            cb.consume(n);
+            n = p.put(cb, ec);
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                continue;
+            if(! BEAST_EXPECT(n == buffer_bytes(cb)))
+                continue;
+            if(p.need_eof())
+            {
+                p.put_eof(ec);
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    continue;
+            }
+            if(! BEAST_EXPECT(p.is_done()))
+                continue;
+            test(p);
+        }
+        for(std::size_t i = 1; i < size - 1; ++i)
+        {
+            Parser p;
+            p.eager(true);
+            error_code ec;
+            buffers_suffix<ConstBufferSequence> cb{buffers};
+            cb.consume(i);
+            auto n = p.put(buffers_cat(
+                buffers_prefix(i, buffers), cb), ec);
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                continue;
+            if(! BEAST_EXPECT(n == size))
+                continue;
+            if(p.need_eof())
+            {
+                p.put_eof(ec);
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    continue;
+            }
+            test(p);
+        }
+    }
+
+    template<class Parser, class Test>
+    void
+    parsegrind(string_view msg, Test const& test, bool skip = false)
+    {
+        parsegrind<Parser>(net::const_buffer{
+            msg.data(), msg.size()}, test, skip);
+    }
+
+    template<class Parser, class ConstBufferSequence>
+    typename std::enable_if<
+        net::is_const_buffer_sequence<ConstBufferSequence>::value>::type
+    parsegrind(ConstBufferSequence const& buffers)
+    {
+        parsegrind<Parser>(buffers, [](Parser const&){});
+    }
+
+    template<class Parser>
+    void
+    parsegrind(string_view msg)
+    {
+        parsegrind<Parser>(msg, [](Parser const&){});
+    }
+
+    template<class Parser>
+    void
+    failgrind(string_view msg, error_code const& result)
+    {
+        for(std::size_t i = 1; i < msg.size() - 1; ++i)
+        {
+            Parser p;
+            p.eager(true);
+            error_code ec;
+            buffers_suffix<net::const_buffer> cb{
+                boost::in_place_init, msg.data(), msg.size()};
+            auto n = p.put(buffers_prefix(i, cb), ec);
+            if(ec == result)
+            {
+                pass();
+                continue;
+            }
+            if(! BEAST_EXPECTS(
+                ec == error::need_more, ec.message()))
+                continue;
+            if(! BEAST_EXPECT(! p.is_done()))
+                continue;
+            cb.consume(n);
+            n = p.put(cb, ec);
+            if(! ec)
+                p.put_eof(ec);
+            BEAST_EXPECTS(ec == result, ec.message());
+        }
+        for(std::size_t i = 1; i < msg.size() - 1; ++i)
+        {
+            Parser p;
+            p.eager(true);
+            error_code ec;
+            p.put(buffers_cat(
+                net::const_buffer{msg.data(), i},
+                net::const_buffer{
+                    msg.data() + i, msg.size() - i}), ec);
+            if(! ec)
+                p.put_eof(ec);
+            BEAST_EXPECTS(ec == result, ec.message());
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testFlatten()
+    {
+        parsegrind<test_parser<true>>(
+            "GET / HTTP/1.1\r\n"
+            "\r\n"
+            );
+        parsegrind<test_parser<true>>(
+            "POST / HTTP/1.1\r\n"
+            "Content-Length: 5\r\n"
+            "\r\n"
+            "*****"
+            );
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 403 Not Found\r\n"
+            "\r\n"
+            );
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 5\r\n"
+            "\r\n"
+            "*****"
+            );
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "5;x\r\n*****\r\n"
+            "0\r\nMD5: 0xff30\r\n"
+            "\r\n"
+            );
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "\r\n"
+            "*****"
+            );
+    }
+
+    void
+    testObsFold()
+    {
+        auto const check =
+            [&](std::string const& s, string_view value)
+            {
+                std::string m =
+                    "GET / HTTP/1.1\r\n"
+                    "f: " + s + "\r\n"
+                    "\r\n";
+                parsegrind<request_parser<string_body>>(m,
+                    [&](request_parser<string_body> const& p)
+                    {
+                        BEAST_EXPECT(p.get()["f"] == value);
+                    });
+            };
+        check("x",                      "x");
+        check(" x",                     "x");
+        check("\tx",                    "x");
+        check(" \tx",                   "x");
+        check("\t x",                   "x");
+        check("x ",                     "x");
+        check(" x\t",                   "x");
+        check("\tx \t",                 "x");
+        check(" \tx\t ",                "x");
+        check("\t x  \t  ",             "x");
+        check("\r\n x",                 "x");
+        check(" \r\n x",                "x");
+        check(" \r\n\tx",               "x");
+        check(" \r\n\t x",              "x");
+        check(" \r\n \tx",              "x");
+        check("  \r\n \r\n \r\n x \t",  "x");
+        check("xy",                     "xy");
+        check("\r\n x",                 "x");
+        check("\r\n  x",                "x");
+        check("\r\n   xy",              "xy");
+        check("\r\n \r\n \r\n x",       "x");
+        check("\r\n \r\n  \r\n xy",     "xy");
+        check("x\r\n y",                "x y");
+        check("x\r\n y\r\n z ",         "x y z");
+    }
+
+    // Check that all callbacks are invoked
+    void
+    testCallbacks()
+    {
+        parsegrind<test_parser<true>>(
+            "GET / HTTP/1.1\r\n"
+            "User-Agent: test\r\n"
+            "Content-Length: 1\r\n"
+            "\r\n"
+            "*",
+            [&](test_parser<true> const& p)
+            {
+                BEAST_EXPECT(p.got_on_begin     == 1);
+                BEAST_EXPECT(p.got_on_field     == 2);
+                BEAST_EXPECT(p.got_on_header    == 1);
+                BEAST_EXPECT(p.got_on_body      == 1);
+                BEAST_EXPECT(p.got_on_chunk     == 0);
+                BEAST_EXPECT(p.got_on_complete  == 1);
+            });
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Content-Length: 1\r\n"
+            "\r\n"
+            "*",
+            [&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.got_on_begin     == 1);
+                BEAST_EXPECT(p.got_on_field     == 2);
+                BEAST_EXPECT(p.got_on_header    == 1);
+                BEAST_EXPECT(p.got_on_body      == 1);
+                BEAST_EXPECT(p.got_on_chunk     == 0);
+                BEAST_EXPECT(p.got_on_complete  == 1);
+            });
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "1\r\n*\r\n"
+            "0\r\n\r\n",
+            [&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.got_on_begin     == 1);
+                BEAST_EXPECT(p.got_on_field     == 2);
+                BEAST_EXPECT(p.got_on_header    == 1);
+                BEAST_EXPECT(p.got_on_body      == 1);
+                BEAST_EXPECT(p.got_on_chunk     == 2);
+                BEAST_EXPECT(p.got_on_complete  == 1);
+            });
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "1;x\r\n*\r\n"
+            "0\r\n\r\n",
+            [&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.got_on_begin     == 1);
+                BEAST_EXPECT(p.got_on_field     == 2);
+                BEAST_EXPECT(p.got_on_header    == 1);
+                BEAST_EXPECT(p.got_on_body      == 1);
+                BEAST_EXPECT(p.got_on_chunk     == 2);
+                BEAST_EXPECT(p.got_on_complete  == 1);
+            });
+    }
+
+    void
+    testRequestLine()
+    {
+        using P = test_parser<true>;
+
+        parsegrind<P>("GET /x HTTP/1.0\r\n\r\n");
+        parsegrind<P>("!#$%&'*+-.^_`|~0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz / HTTP/1.0\r\n\r\n");
+        parsegrind<P>("GET / HTTP/1.0\r\n\r\n",         expect_version{*this, 10});
+        parsegrind<P>("G / HTTP/1.1\r\n\r\n",           expect_version{*this, 11});
+        // VFALCO TODO various forms of good request-target (uri)
+
+        failgrind<P>("\tGET / HTTP/1.0\r\n"    "\r\n",  error::bad_method);
+        failgrind<P>("GET\x01 / HTTP/1.0\r\n"  "\r\n",  error::bad_method);
+        failgrind<P>("GET  / HTTP/1.0\r\n"     "\r\n",  error::bad_target);
+        failgrind<P>("GET \x01 HTTP/1.0\r\n"   "\r\n",  error::bad_target);
+        failgrind<P>("GET /\x01 HTTP/1.0\r\n"  "\r\n",  error::bad_target);
+        // VFALCO TODO various forms of bad request-target (uri)
+        failgrind<P>("GET /  HTTP/1.0\r\n"     "\r\n",  error::bad_version);
+        failgrind<P>("GET / _TTP/1.0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / H_TP/1.0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HT_P/1.0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTT_/1.0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP_1.0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/01.2\r\n"     "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/3.45\r\n"     "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/67.89\r\n"    "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/x.0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/1.x\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/1.0 \r\n"     "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/1_0\r\n"      "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/1.0\n\r\n"    "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/1.0\n\r\r\n"  "\r\n",  error::bad_version);
+        failgrind<P>("GET / HTTP/1.0\r\r\n"    "\r\n",  error::bad_version);
+    }
+
+    void
+    testStatusLine()
+    {
+        using P = test_parser<false>;
+
+        parsegrind<P>("HTTP/1.0 000 OK\r\n"   "\r\n",   expect_status{*this, 0});
+        parsegrind<P>("HTTP/1.1 012 OK\r\n"   "\r\n",   expect_status{*this, 12});
+        parsegrind<P>("HTTP/1.0 345 OK\r\n"   "\r\n",   expect_status{*this, 345});
+        parsegrind<P>("HTTP/1.0 678 OK\r\n"   "\r\n",   expect_status{*this, 678});
+        parsegrind<P>("HTTP/1.0 999 OK\r\n"   "\r\n",   expect_status{*this, 999});
+        parsegrind<P>("HTTP/1.0 200 \tX\r\n"  "\r\n",   expect_version{*this, 10});
+        parsegrind<P>("HTTP/1.1 200  X\r\n"   "\r\n",   expect_version{*this, 11});
+        parsegrind<P>("HTTP/1.0 200 \r\n"     "\r\n");
+        parsegrind<P>("HTTP/1.1 200 X \r\n"   "\r\n");
+        parsegrind<P>("HTTP/1.1 200 X\t\r\n"  "\r\n");
+        parsegrind<P>("HTTP/1.1 200 \x80\x81...\xfe\xff\r\n\r\n");
+        parsegrind<P>("HTTP/1.1 200 !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\r\n\r\n");
+
+        failgrind<P>("\rHTTP/1.0 200 OK\r\n"  "\r\n",   error::bad_version);
+        failgrind<P>("\nHTTP/1.0 200 OK\r\n"  "\r\n",   error::bad_version);
+        failgrind<P>(" HTTP/1.0 200 OK\r\n"   "\r\n",   error::bad_version);
+        failgrind<P>("_TTP/1.0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("H_TP/1.0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HT_P/1.0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HTT_/1.0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HTTP_1.0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/01.2 200 OK\r\n"   "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/3.45 200 OK\r\n"   "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/67.89 200 OK\r\n"  "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/x.0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/1.x 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/1_0 200 OK\r\n"    "\r\n",   error::bad_version);
+        failgrind<P>("HTTP/1.0  200 OK\r\n"   "\r\n",   error::bad_status);
+        failgrind<P>("HTTP/1.0 0 OK\r\n"      "\r\n",   error::bad_status);
+        failgrind<P>("HTTP/1.0 12 OK\r\n"     "\r\n",   error::bad_status);
+        failgrind<P>("HTTP/1.0 3456 OK\r\n"   "\r\n",   error::bad_status);
+        failgrind<P>("HTTP/1.0 200\r\n"       "\r\n",   error::bad_status);
+        failgrind<P>("HTTP/1.0 200 \n\r\n"    "\r\n",   error::bad_reason);
+        failgrind<P>("HTTP/1.0 200 \x01\r\n"  "\r\n",   error::bad_reason);
+        failgrind<P>("HTTP/1.0 200 \x7f\r\n"  "\r\n",   error::bad_reason);
+        failgrind<P>("HTTP/1.0 200 OK\n\r\n"  "\r\n",   error::bad_reason);
+        failgrind<P>("HTTP/1.0 200 OK\r\r\n"  "\r\n",   error::bad_line_ending);
+    }
+
+    void
+    testFields()
+    {
+        auto const m =
+            [](std::string const& s)
+            {
+                return "GET / HTTP/1.1\r\n" + s + "\r\n";
+            };
+
+        using P = test_parser<true>;
+
+        parsegrind<P>(m("f:\r\n"));
+        parsegrind<P>(m("f: \r\n"));
+        parsegrind<P>(m("f:\t\r\n"));
+        parsegrind<P>(m("f: \t\r\n"));
+        parsegrind<P>(m("f: v\r\n"));
+        parsegrind<P>(m("f:\tv\r\n"));
+        parsegrind<P>(m("f:\tv \r\n"));
+        parsegrind<P>(m("f:\tv\t\r\n"));
+        parsegrind<P>(m("f:\tv\t \r\n"));
+        parsegrind<P>(m("f:\r\n \r\n"));
+        parsegrind<P>(m("f:v\r\n"));
+        parsegrind<P>(m("f: v\r\n u\r\n"));
+        parsegrind<P>(m("!#$%&'*+-.^_`|~0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz: v\r\n"));
+        parsegrind<P>(m("f: !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x80\x81...\xfe\xff\r\n"));
+
+        failgrind<P>(m(" f: v\r\n"),        error::bad_field);
+        failgrind<P>(m("\tf: v\r\n"),       error::bad_field);
+        failgrind<P>(m("f : v\r\n"),        error::bad_field);
+        failgrind<P>(m("f\t: v\r\n"),       error::bad_field);
+        failgrind<P>(m("f: \n\r\n"),        error::bad_value);
+        failgrind<P>(m("f: v\r \r\n"),      error::bad_line_ending);
+        failgrind<P>(m("f: \r v\r\n"),      error::bad_line_ending);
+        failgrind<P>(
+            "GET / HTTP/1.1\r\n"
+            "\r \n\r\n"
+            "\r\n",                         error::bad_line_ending);
+    }
+
+    void
+    testConnectionField()
+    {
+        auto const m = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\n" + s + "\r\n"; };
+        auto const cn = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\nConnection: " + s + "\r\n"; };
+    #if 0
+        auto const keepalive = [&](bool v)
+            { //return keepalive_f{*this, v}; return true; };
+    #endif
+
+        using P = test_parser<true>;
+
+        parsegrind<P>(cn("close\r\n"),                         expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn(",close\r\n"),                        expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn(" close\r\n"),                        expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("\tclose\r\n"),                       expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close,\r\n"),                        expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close\t\r\n"),                       expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close\r\n"),                         expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn(" ,\t,,close,, ,\t,,\r\n"),           expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("\r\n close\r\n"),                    expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close\r\n \r\n"),                    expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("any,close\r\n"),                     expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close,any\r\n"),                     expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("any\r\n ,close\r\n"),                expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close\r\n ,any\r\n"),                expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(cn("close,close\r\n"),                   expect_flags{*this, parse_flag::connection_close}); // weird but allowed
+
+        parsegrind<P>(cn("keep-alive\r\n"),                    expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("keep-alive \r\n"),                   expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("keep-alive\t \r\n"),                 expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("keep-alive\t ,x\r\n"),               expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("\r\n keep-alive \t\r\n"),            expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("keep-alive \r\n \t \r\n"),           expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("keep-alive\r\n \r\n"),               expect_flags{*this, parse_flag::connection_keep_alive});
+
+        parsegrind<P>(cn("upgrade\r\n"),                       expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(cn("upgrade \r\n"),                      expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(cn("upgrade\t \r\n"),                    expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(cn("upgrade\t ,x\r\n"),                  expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(cn("\r\n upgrade \t\r\n"),               expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(cn("upgrade \r\n \t \r\n"),              expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(cn("upgrade\r\n \r\n"),                  expect_flags{*this, parse_flag::connection_upgrade});
+
+        // VFALCO What's up with these?
+        //parsegrind<P>(cn("close,keep-alive\r\n"),              expect_flags{*this, parse_flag::connection_close | parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("upgrade,keep-alive\r\n"),            expect_flags{*this, parse_flag::connection_upgrade | parse_flag::connection_keep_alive});
+        parsegrind<P>(cn("upgrade,\r\n keep-alive\r\n"),       expect_flags{*this, parse_flag::connection_upgrade | parse_flag::connection_keep_alive});
+        //parsegrind<P>(cn("close,keep-alive,upgrade\r\n"),      expect_flags{*this, parse_flag::connection_close | parse_flag::connection_keep_alive | parse_flag::connection_upgrade});
+
+        parsegrind<P>("GET / HTTP/1.1\r\n\r\n",                expect_keepalive(*this, true));
+        parsegrind<P>("GET / HTTP/1.0\r\n\r\n",                expect_keepalive(*this, false));
+        parsegrind<P>("GET / HTTP/1.0\r\n"
+                   "Connection: keep-alive\r\n\r\n",        expect_keepalive(*this, true));
+        parsegrind<P>("GET / HTTP/1.1\r\n"
+                   "Connection: close\r\n\r\n",             expect_keepalive(*this, false));
+
+        parsegrind<P>(cn("x\r\n"),                             expect_flags{*this, 0});
+        parsegrind<P>(cn("x,y\r\n"),                           expect_flags{*this, 0});
+        parsegrind<P>(cn("x ,y\r\n"),                          expect_flags{*this, 0});
+        parsegrind<P>(cn("x\t,y\r\n"),                         expect_flags{*this, 0});
+        parsegrind<P>(cn("keep\r\n"),                          expect_flags{*this, 0});
+        parsegrind<P>(cn(",keep\r\n"),                         expect_flags{*this, 0});
+        parsegrind<P>(cn(" keep\r\n"),                         expect_flags{*this, 0});
+        parsegrind<P>(cn("\tnone\r\n"),                        expect_flags{*this, 0});
+        parsegrind<P>(cn("keep,\r\n"),                         expect_flags{*this, 0});
+        parsegrind<P>(cn("keep\t\r\n"),                        expect_flags{*this, 0});
+        parsegrind<P>(cn("keep\r\n"),                          expect_flags{*this, 0});
+        parsegrind<P>(cn(" ,\t,,keep,, ,\t,,\r\n"),            expect_flags{*this, 0});
+        parsegrind<P>(cn("\r\n keep\r\n"),                     expect_flags{*this, 0});
+        parsegrind<P>(cn("keep\r\n \r\n"),                     expect_flags{*this, 0});
+        parsegrind<P>(cn("closet\r\n"),                        expect_flags{*this, 0});
+        parsegrind<P>(cn(",closet\r\n"),                       expect_flags{*this, 0});
+        parsegrind<P>(cn(" closet\r\n"),                       expect_flags{*this, 0});
+        parsegrind<P>(cn("\tcloset\r\n"),                      expect_flags{*this, 0});
+        parsegrind<P>(cn("closet,\r\n"),                       expect_flags{*this, 0});
+        parsegrind<P>(cn("closet\t\r\n"),                      expect_flags{*this, 0});
+        parsegrind<P>(cn("closet\r\n"),                        expect_flags{*this, 0});
+        parsegrind<P>(cn(" ,\t,,closet,, ,\t,,\r\n"),          expect_flags{*this, 0});
+        parsegrind<P>(cn("\r\n closet\r\n"),                   expect_flags{*this, 0});
+        parsegrind<P>(cn("closet\r\n \r\n"),                   expect_flags{*this, 0});
+        parsegrind<P>(cn("clog\r\n"),                          expect_flags{*this, 0});
+        parsegrind<P>(cn("key\r\n"),                           expect_flags{*this, 0});
+        parsegrind<P>(cn("uptown\r\n"),                        expect_flags{*this, 0});
+        parsegrind<P>(cn("keeper\r\n \r\n"),                   expect_flags{*this, 0});
+        parsegrind<P>(cn("keep-alively\r\n \r\n"),             expect_flags{*this, 0});
+        parsegrind<P>(cn("up\r\n \r\n"),                       expect_flags{*this, 0});
+        parsegrind<P>(cn("upgrader\r\n \r\n"),                 expect_flags{*this, 0});
+        parsegrind<P>(cn("none\r\n"),                          expect_flags{*this, 0});
+        parsegrind<P>(cn("\r\n none\r\n"),                     expect_flags{*this, 0});
+
+        parsegrind<P>(m("ConnectioX: close\r\n"),              expect_flags{*this, 0});
+        parsegrind<P>(m("Condor: close\r\n"),                  expect_flags{*this, 0});
+        parsegrind<P>(m("Connect: close\r\n"),                 expect_flags{*this, 0});
+        parsegrind<P>(m("Connections: close\r\n"),             expect_flags{*this, 0});
+
+        parsegrind<P>(m("Proxy-Connection: close\r\n"),        expect_flags{*this, parse_flag::connection_close});
+        parsegrind<P>(m("Proxy-Connection: keep-alive\r\n"),   expect_flags{*this, parse_flag::connection_keep_alive});
+        parsegrind<P>(m("Proxy-Connection: upgrade\r\n"),      expect_flags{*this, parse_flag::connection_upgrade});
+        parsegrind<P>(m("Proxy-ConnectioX: none\r\n"),         expect_flags{*this, 0});
+        parsegrind<P>(m("Proxy-Connections: 1\r\n"),           expect_flags{*this, 0});
+        parsegrind<P>(m("Proxy-Connotes: see-also\r\n"),       expect_flags{*this, 0});
+
+        failgrind<P>(cn("[\r\n"),                              error::bad_value);
+        failgrind<P>(cn("close[\r\n"),                         error::bad_value);
+        failgrind<P>(cn("close [\r\n"),                        error::bad_value);
+        failgrind<P>(cn("close, upgrade [\r\n"),               error::bad_value);
+        failgrind<P>(cn("upgrade[]\r\n"),                      error::bad_value);
+        failgrind<P>(cn("keep\r\n -alive\r\n"),                error::bad_value);
+        failgrind<P>(cn("keep-alive[\r\n"),                    error::bad_value);
+        failgrind<P>(cn("keep-alive []\r\n"),                  error::bad_value);
+        failgrind<P>(cn("no[ne]\r\n"),                         error::bad_value);
+    }
+
+    void
+    testContentLengthField()
+    {
+        using P = test_parser<true>;
+        auto const c = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\nContent-Length: " + s + "\r\n"; };
+        auto const m = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\n" + s + "\r\n"; };
+        auto const check =
+            [&](std::string const& s, std::uint64_t v)
+            {
+                parsegrind<P>(c(s),
+                    [&](P const& p)
+                    {
+                        BEAST_EXPECT(p.content_length());
+                        BEAST_EXPECT(p.content_length() && *p.content_length() == v);
+                    }, true);
+            };
+
+        check("0\r\n",          0);
+        check("00\r\n",         0);
+        check("1\r\n",          1);
+        check("01\r\n",         1);
+        check("9\r\n",          9);
+        check("42 \r\n",        42);
+        check("42\t\r\n",       42);
+        check("42 \t \r\n",     42);
+        check("42\r\n \t \r\n", 42);
+
+        parsegrind<P>(m("Content-LengtX: 0\r\n"),           expect_flags{*this, 0});
+        parsegrind<P>(m("Content-Lengths: many\r\n"),       expect_flags{*this, 0});
+        parsegrind<P>(m("Content: full\r\n"),               expect_flags{*this, 0});
+        parsegrind<P>(m("Content-Length: 0\r\n"
+                        "Content-Length: 0\r\n"),           expect_flags{*this, 0});
+
+        failgrind<P>(c("\r\n"),                             error::bad_content_length);
+        failgrind<P>(c("18446744073709551616\r\n"),         error::bad_content_length);
+        failgrind<P>(c("0 0\r\n"),                          error::bad_content_length);
+        failgrind<P>(c("0 1\r\n"),                          error::bad_content_length);
+        failgrind<P>(c(",\r\n"),                            error::bad_content_length);
+        failgrind<P>(c("0,\r\n"),                           error::bad_content_length);
+        failgrind<P>(m("Content-Length: 0\r\n"
+                        "Content-Length: 100\r\n"),         error::bad_content_length);
+    }
+
+    void
+    testTransferEncodingField()
+    {
+        auto const m = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\n" + s + "\r\n"; };
+        auto const ce = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\nTransfer-Encoding: " + s + "\r\n0\r\n\r\n"; };
+        auto const te = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\nTransfer-Encoding: " + s + "\r\n"; };
+
+        using P = test_parser<true>;
+
+        parsegrind<P>(ce("chunked\r\n"),                expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked \r\n"),               expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked\t\r\n"),              expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked \t\r\n"),             expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce(" chunked\r\n"),               expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("\tchunked\r\n"),              expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked,\r\n"),               expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked ,\r\n"),              expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked, \r\n"),              expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce(",chunked\r\n"),               expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce(", chunked\r\n"),              expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce(" ,chunked\r\n"),              expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("chunked\r\n \r\n"),           expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("\r\n chunked\r\n"),           expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce(",\r\n chunked\r\n"),          expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("\r\n ,chunked\r\n"),          expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce(",\r\n chunked\r\n"),          expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("gzip, chunked\r\n"),          expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("gzip, chunked \r\n"),         expect_flags{*this, parse_flag::chunked});
+        parsegrind<P>(ce("gzip, \r\n chunked\r\n"),     expect_flags{*this, parse_flag::chunked});
+
+        // Technically invalid but beyond the parser's scope to detect
+        // VFALCO Look into this
+        //parsegrind<P>(ce("custom;key=\",chunked\r\n"),  expect_flags{*this, parse_flag::chunked});
+
+        parsegrind<P>(te("gzip\r\n"),                   expect_flags{*this, 0});
+        parsegrind<P>(te("chunked, gzip\r\n"),          expect_flags{*this, 0});
+        parsegrind<P>(te("chunked\r\n , gzip\r\n"),     expect_flags{*this, 0});
+        parsegrind<P>(te("chunked,\r\n gzip\r\n"),      expect_flags{*this, 0});
+        parsegrind<P>(te("chunked,\r\n ,gzip\r\n"),     expect_flags{*this, 0});
+        parsegrind<P>(te("bigchunked\r\n"),             expect_flags{*this, 0});
+        parsegrind<P>(te("chunk\r\n ked\r\n"),          expect_flags{*this, 0});
+        parsegrind<P>(te("bar\r\n ley chunked\r\n"),    expect_flags{*this, 0});
+        parsegrind<P>(te("barley\r\n chunked\r\n"),     expect_flags{*this, 0});
+
+        parsegrind<P>(m("Transfer-EncodinX: none\r\n"), expect_flags{*this, 0});
+        parsegrind<P>(m("Transfer-Encodings: 2\r\n"),   expect_flags{*this, 0});
+        parsegrind<P>(m("Transfer-Encoded: false\r\n"), expect_flags{*this, 0});
+
+        failgrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 1\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n",                                     error::bad_transfer_encoding);
+    }
+
+    void
+    testUpgradeField()
+    {
+        auto const m = [](std::string const& s)
+            { return "GET / HTTP/1.1\r\n" + s + "\r\n"; };
+
+        using P = test_parser<true>;
+
+        parsegrind<P>(m("Upgrade:\r\n"),                       expect_flags{*this, parse_flag::upgrade});
+        parsegrind<P>(m("Upgrade: \r\n"),                      expect_flags{*this, parse_flag::upgrade});
+        parsegrind<P>(m("Upgrade: yes\r\n"),                   expect_flags{*this, parse_flag::upgrade});
+
+        parsegrind<P>(m("Up: yes\r\n"),                        expect_flags{*this, 0});
+        parsegrind<P>(m("UpgradX: none\r\n"),                  expect_flags{*this, 0});
+        parsegrind<P>(m("Upgrades: 2\r\n"),                    expect_flags{*this, 0});
+        parsegrind<P>(m("Upsample: 4x\r\n"),                   expect_flags{*this, 0});
+
+        parsegrind<P>(
+            "GET / HTTP/1.1\r\n"
+            "Connection: upgrade\r\n"
+            "Upgrade: WebSocket\r\n"
+            "\r\n",
+            [&](P const& p)
+            {
+                BEAST_EXPECT(p.upgrade());
+            });
+    }
+
+    void
+    testPartial()
+    {
+        // Make sure the slow-loris defense works and that
+        // we don't get duplicate or missing fields on a split.
+        parsegrind<test_parser<true>>(
+            "GET / HTTP/1.1\r\n"
+            "a: 0\r\n"
+            "b: 1\r\n"
+            "c: 2\r\n"
+            "d: 3\r\n"
+            "e: 4\r\n"
+            "f: 5\r\n"
+            "g: 6\r\n"
+            "h: 7\r\n"
+            "i: 8\r\n"
+            "j: 9\r\n"
+            "\r\n",
+            [&](test_parser<true> const& p)
+            {
+                BEAST_EXPECT(p.fields.size() == 10);
+                BEAST_EXPECT(p.fields.at("a") == "0");
+                BEAST_EXPECT(p.fields.at("b") == "1");
+                BEAST_EXPECT(p.fields.at("c") == "2");
+                BEAST_EXPECT(p.fields.at("d") == "3");
+                BEAST_EXPECT(p.fields.at("e") == "4");
+                BEAST_EXPECT(p.fields.at("f") == "5");
+                BEAST_EXPECT(p.fields.at("g") == "6");
+                BEAST_EXPECT(p.fields.at("h") == "7");
+                BEAST_EXPECT(p.fields.at("i") == "8");
+                BEAST_EXPECT(p.fields.at("j") == "9");
+            });
+    }
+
+    void
+    testLimits()
+    {
+        {
+            multi_buffer b;
+            ostream(b) <<
+                "POST / HTTP/1.1\r\n"
+                "Content-Length: 2\r\n"
+                "\r\n"
+                "**";
+            error_code ec;
+            test_parser<true> p;
+            p.header_limit(10);
+            p.eager(true);
+            p.put(b.data(), ec);
+            BEAST_EXPECTS(ec == error::header_limit, ec.message());
+        }
+        {
+            multi_buffer b;
+            ostream(b) <<
+                "POST / HTTP/1.1\r\n"
+                "Content-Length: 2\r\n"
+                "\r\n"
+                "**";
+            error_code ec;
+            test_parser<true> p;
+            p.body_limit(1);
+            p.eager(true);
+            p.put(b.data(), ec);
+            BEAST_EXPECTS(ec == error::body_limit, ec.message());
+        }
+        {
+            multi_buffer b;
+            ostream(b) <<
+                "HTTP/1.1 200 OK\r\n"
+                "\r\n"
+                "**";
+            error_code ec;
+            test_parser<false> p;
+            p.body_limit(1);
+            p.eager(true);
+            p.put(b.data(), ec);
+            BEAST_EXPECTS(ec == error::body_limit, ec.message());
+        }
+        {
+            multi_buffer b;
+            ostream(b) <<
+                "POST / HTTP/1.1\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "2\r\n"
+                "**\r\n"
+                "0\r\n\r\n";
+            error_code ec;
+            test_parser<true> p;
+            p.body_limit(1);
+            p.eager(true);
+            p.put(b.data(), ec);
+            BEAST_EXPECTS(ec == error::body_limit, ec.message());
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    static
+    net::const_buffer
+    buf(string_view s)
+    {
+        return {s.data(), s.size()};
+    }
+
+    template<class ConstBufferSequence, bool isRequest>
+    std::size_t
+    feed(ConstBufferSequence const& buffers,
+        basic_parser<isRequest>& p, error_code& ec)
+    {
+        p.eager(true);
+        return p.put(buffers, ec);
+    }
+
+    void
+    testBody()
+    {
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "Content-Type: application/octet-stream\r\n"
+            "\r\n"
+            "4\r\nabcd\r\n"
+            "0\r\n\r\n"
+            ,[&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.body == "abcd");
+            });
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Expect: Expires, MD5-Fingerprint\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "5\r\n"
+            "*****\r\n"
+            "2;a;b=1;c=\"2\"\r\n"
+            "--\r\n"
+            "0;d;e=3;f=\"4\"\r\n"
+            "Expires: never\r\n"
+            "MD5-Fingerprint: -\r\n"
+            "\r\n"
+            ,[&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.body == "*****--");
+            });
+
+        parsegrind<test_parser<true>>(
+            "GET / HTTP/1.1\r\n"
+            "Content-Length: 1\r\n"
+            "\r\n"
+            "1",
+            expect_body(*this, "1"));
+
+        parsegrind<test_parser<false>>(
+            "HTTP/1.0 200 OK\r\n"
+            "\r\n"
+            "hello",
+            expect_body(*this, "hello"));
+
+        parsegrind<test_parser<true>>(buffers_cat(
+            buf("GET / HTTP/1.1\r\n"
+                "Content-Length: 10\r\n"
+                "\r\n"),
+            buf("12"),
+            buf("345"),
+            buf("67890")));
+
+        // request without Content-Length or
+        // Transfer-Encoding: chunked has no body.
+        {
+            error_code ec;
+            test_parser<true> p;
+            feed(buf(
+                "GET / HTTP/1.0\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+        {
+            error_code ec;
+            test_parser<true> p;
+            feed(buf(
+                "GET / HTTP/1.1\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+
+        // response without Content-Length or
+        // Transfer-Encoding: chunked requires eof.
+        {
+            error_code ec;
+            test_parser<false> p;
+            feed(buf(
+                "HTTP/1.0 200 OK\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(! p.is_done());
+            BEAST_EXPECT(p.need_eof());
+        }
+
+        // 304 "Not Modified" response does not require eof
+        {
+            error_code ec;
+            test_parser<false> p;
+            feed(buf(
+                "HTTP/1.0 304 Not Modified\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+
+        // Chunked response does not require eof
+        {
+            error_code ec;
+            test_parser<false> p;
+            feed(buf(
+                "HTTP/1.1 200 OK\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(! p.is_done());
+            feed(buf(
+                "0\r\n\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+
+        // restart: 1.0 assumes Connection: close
+        {
+            error_code ec;
+            test_parser<true> p;
+            feed(buf(
+                "GET / HTTP/1.0\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+
+        // restart: 1.1 assumes Connection: keep-alive
+        {
+            error_code ec;
+            test_parser<true> p;
+            feed(buf(
+                "GET / HTTP/1.1\r\n"
+                "\r\n"
+                ), p, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+
+        failgrind<test_parser<true>>(
+            "GET / HTTP/1.1\r\n"
+            "Content-Length: 1\r\n"
+            "\r\n",
+            error::partial_message);
+    }
+
+    //--------------------------------------------------------------------------
+
+    // https://github.com/boostorg/beast/issues/430
+    void
+    testIssue430()
+    {
+        parsegrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "Content-Type: application/octet-stream\r\n"
+            "\r\n"
+            "4\r\nabcd\r\n"
+            "0\r\n\r\n");
+    }
+
+    // https://github.com/boostorg/beast/issues/452
+    void
+    testIssue452()
+    {
+        error_code ec;
+        test_parser<true> p;
+        p.eager(true);
+        string_view s =
+            "GET / HTTP/1.1\r\n"
+            "\r\n"
+            "die!";
+        p.put(net::buffer(
+            s.data(), s.size()), ec);
+        if(! BEAST_EXPECTS(! ec, ec.message()))
+            return;
+        BEAST_EXPECT(p.is_done());
+    }
+
+    // https://github.com/boostorg/beast/issues/496
+    void
+    testIssue496()
+    {
+        // The bug affected hex parsing with leading zeroes
+        using P = test_parser<false>;
+        parsegrind<P>(
+            "HTTP/1.1 200 OK\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "Content-Type: application/octet-stream\r\n"
+            "\r\n"
+            "0004\r\nabcd\r\n"
+            "0\r\n\r\n"
+            ,[&](P const& p)
+            {
+                BEAST_EXPECT(p.body == "abcd");
+            });
+    }
+
+    // https://github.com/boostorg/beast/issues/692
+    void
+    testIssue692()
+    {
+        error_code ec;
+        test_parser<false> p;
+        p.eager(true);
+        string_view s =
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Content-Length: 2147483648\r\n"
+            "\r\n";
+        p.put(net::buffer(
+            s.data(), s.size()), ec);
+        if(! BEAST_EXPECTS(! ec, ec.message()))
+            return;
+        BEAST_EXPECT(p.is_done());
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testFuzz()
+    {
+        auto const grind =
+        [&](string_view s)
+        {
+            static_string<100> ss{s};
+            test::fuzz_rand r;
+            test::fuzz(ss, 4, 5, r,
+            [&](string_view s)
+            {
+                error_code ec;
+                test_parser<false> p;
+                p.eager(true);
+                p.put(net::const_buffer{
+                    s.data(), s.size()}, ec);
+            });
+        };
+        auto const good =
+        [&](string_view s)
+        {
+            std::string msg =
+                "HTTP/1.1 200 OK\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "0" + std::string(s) + "\r\n"
+                "\r\n";
+            error_code ec;
+            test_parser<false> p;
+            p.eager(true);
+            p.put(net::const_buffer{
+                msg.data(), msg.size()}, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            grind(msg);
+        };
+        auto const bad =
+        [&](string_view s)
+        {
+            std::string msg =
+                "HTTP/1.1 200 OK\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "0" + std::string(s) + "\r\n"
+                "\r\n";
+            error_code ec;
+            test_parser<false> p;
+            p.eager(true);
+            p.put(net::const_buffer{
+                msg.data(), msg.size()}, ec);
+            BEAST_EXPECT(ec);
+            grind(msg);
+        };
+        chunkExtensionsTest(good, bad);
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    testRegression1()
+    {
+        // crash_00cda0b02d5166bd1039ddb3b12618cd80da75f3
+        unsigned char buf[] ={
+	        0x4C,0x4F,0x43,0x4B,0x20,0x2F,0x25,0x65,0x37,0x6C,0x59,0x3B,0x2F,0x3B,0x3B,0x25,0x30,0x62,0x38,0x3D,0x70,0x2F,0x72,0x20,
+	        0x48,0x54,0x54,0x50,0x2F,0x31,0x2E,0x31,0x0D,0x0A,0x41,0x63,0x63,0x65,0x70,0x74,0x2D,0x45,0x6E,0x63,0x6F,0x64,0x69,0x6E,
+	        0x67,0x3A,0x0D,0x0A,0x09,0x20,0xEE,0x0D,0x0A,0x4F,0x72,0x69,0x67,0x69,0x6E,0x61,0x6C,0x2D,0x4D,0x65,0x73,0x73,0x61,0x67,
+	        0x65,0x2D,0x49,0x44,0x3A,0xEB,0x09,0x09,0x09,0x09,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x3A,0x20,0x0D,0x0A,0x09,0x20,
+	        0xF7,0x44,0x9B,0xA5,0x06,0x9F,0x0D,0x0A,0x52,0x65,0x73,0x65,0x6E,0x74,0x2D,0x44,0x61,0x74,0x65,0x3A,0xF4,0x0D,0x0A,0x41,
+	        0x6C,0x74,0x2D,0x53,0x76,0x63,0x3A,0x20,0x0D,0x0A,0x54,0x72,0x61,0x69,0x6C,0x65,0x72,0x3A,0x20,0x20,0x09,0x20,0x20,0x20,
+	        0x0D,0x0A,0x4C,0x69,0x73,0x74,0x2D,0x49,0x44,0x3A,0xA6,0x6B,0x86,0x09,0x09,0x20,0x09,0x0D,0x0A,0x41,0x6C,0x74,0x65,0x72,
+	        0x6E,0x61,0x74,0x65,0x2D,0x52,0x65,0x63,0x69,0x70,0x69,0x65,0x6E,0x74,0x3A,0xF3,0x13,0xE3,0x22,0x9D,0xEF,0xFB,0x84,0x71,
+	        0x4A,0xCC,0xBC,0x96,0xF7,0x5B,0x72,0xF1,0xF2,0x0D,0x0A,0x4C,0x6F,0x63,0x61,0x74,0x69,0x6F,0x6E,0x3A,0x20,0x0D,0x0A,0x41,
+	        0x63,0x63,0x65,0x70,0x74,0x2D,0x41,0x64,0x64,0x69,0x74,0x69,0x6F,0x6E,0x73,0x3A,0x20,0x0D,0x0A,0x4D,0x4D,0x48,0x53,0x2D,
+	        0x4F,0x72,0x69,0x67,0x69,0x6E,0x61,0x74,0x6F,0x72,0x2D,0x50,0x4C,0x41,0x44,0x3A,0x20,0x0D,0x0A,0x4F,0x72,0x69,0x67,0x69,
+	        0x6E,0x61,0x6C,0x2D,0x53,0x65,0x6E,0x64,0x65,0x72,0x3A,0x20,0x0D,0x0A,0x4F,0x72,0x69,0x67,0x69,0x6E,0x61,0x6C,0x2D,0x53,
+	        0x65,0x6E,0x64,0x65,0x72,0x3A,0x0D,0x0A,0x50,0x49,0x43,0x53,0x2D,0x4C,0x61,0x62,0x65,0x6C,0x3A,0x0D,0x0A,0x20,0x09,0x0D,
+	        0x0A,0x49,0x66,0x3A,0x20,0x40,0xC1,0x50,0x5C,0xD6,0xC3,0x86,0xFC,0x8D,0x5C,0x7C,0x96,0x45,0x0D,0x0A,0x4D,0x4D,0x48,0x53,
+	        0x2D,0x45,0x78,0x65,0x6D,0x70,0x74,0x65,0x64,0x2D,0x41,0x64,0x64,0x72,0x65,0x73,0x73,0x3A,0x0D,0x0A,0x49,0x6E,0x6A,0x65,
+	        0x63,0x74,0x69,0x6F,0x6E,0x2D,0x49,0x6E,0x66,0x6F,0x3A,0x20,0x0D,0x0A,0x43,0x6F,0x6E,0x74,0x65,0x74,0x6E,0x2D,0x4C,0x65,
+            0x6E,0x67,0x74,0x68,0x3A,0x20,0x30,0x0D,0x0A,0x0D,0x0A
+        };
+
+        error_code ec;
+        test_parser<true> p;
+        feed(net::buffer(buf, sizeof(buf)), p, ec);
+        BEAST_EXPECT(ec);
+    }
+
+    void
+    testIssue1211()
+    {
+        using base = detail::basic_parser_base;
+        auto const good =
+            [&](string_view s, std::uint32_t v0)
+            {
+                std::uint64_t v;
+                auto const result =
+                    base::parse_dec(s, v);
+                if(BEAST_EXPECTS(result, s))
+                    BEAST_EXPECTS(v == v0, s);
+            };
+        auto const bad =
+            [&](string_view s)
+            {
+                std::uint64_t v;
+                auto const result =
+                    base::parse_dec(s, v);
+                BEAST_EXPECTS(! result, s);
+            };
+        good("0",           0);
+        good("00",          0);
+        good("001",         1);
+        good("255",         255);
+        good("65535",       65535);
+        good("65536",       65536);
+        good("4294967295",  4294967295);
+        bad ("");
+        bad (" ");
+        bad (" 0");
+        bad ("0 ");
+        bad ("-1");
+        bad ("18446744073709551616"); // max(uint64) + 1
+    }
+
+    void
+    testIssue1267()
+    {
+        using base = detail::basic_parser_base;
+        auto const good =
+            [&](string_view s, std::uint64_t v0)
+            {
+                std::uint64_t v;
+                auto it = s.data();
+                auto const result =
+                    base::parse_hex(it, v);
+                if(BEAST_EXPECTS(result, s))
+                    BEAST_EXPECTS(v == v0, s);
+            };
+        auto const bad =
+            [&](string_view s)
+            {
+                std::uint64_t v;
+                auto it = s.data();
+                auto const result =
+                    base::parse_hex(it, v);
+                BEAST_EXPECTS(! result, s);
+            };
+        good("f\r\n",               15);
+        good("ff\r\n",              255);
+        good("ffff\r\n",            65535);
+        good("ffffffffr\n",         4294967295);
+        good("ffffffffffffffff\r\n", 18446744073709551615ULL);
+        bad ("\r\n");
+        bad ("g\r\n");
+        bad ("10000000000000000\r\n");
+        bad ("ffffffffffffffffffffff\r\n");
+    }
+
+    //--------------------------------------------------------------------------
+
+    // https://github.com/boostorg/beast/issues/1734
+
+    void
+    testIssue1734()
+    {
+        // Ensure more than one buffer, this is to avoid an optimized path in
+        // basic_parser::put(ConstBufferSequence const&,...) which avoids
+        // buffer flattening.
+        auto multibufs = [](multi_buffer::const_buffers_type buffers) {
+            std::vector<net::const_buffer> bs;
+            for (auto b : buffers_range(buffers))
+                bs.push_back(b);
+            while (std::distance(bs.begin(), bs.end()) < 2) {
+                bs.push_back({});
+            }
+            return bs;
+        };
+
+        // Buffers must be bigger than max_stack_buffer to force flattening
+        // in basic_parser::put(ConstBufferSequence const&,...)
+        std::string first_chunk_data(
+            2 * basic_parser<false>::max_stack_buffer + 1, 'x');
+
+        std::string second_chunk_data_part1(
+            basic_parser<false>::max_stack_buffer + 2, 'x');
+        std::string second_chunk_data_part2(
+            basic_parser<false>::max_stack_buffer + 1, 'x');
+
+        multi_buffer b;
+        parser<false, string_body> p;
+        p.eager(true);
+        error_code ec;
+        std::size_t used;
+
+        ostream(b) <<
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n";
+
+        used = p.put(b.data(), ec);
+        b.consume(used);
+
+        BEAST_EXPECT(net::buffer_size(b.data()) == 0);
+        BEAST_EXPECTS(!ec, ec.message());
+        BEAST_EXPECT(!p.is_done());
+        BEAST_EXPECT(p.is_header_done());
+
+        ostream(b) <<
+            std::hex <<
+            first_chunk_data.size() << "\r\n" <<
+            first_chunk_data << "\r\n";
+
+        // First chunk
+        used = p.put(multibufs(b.data()), ec);
+        b.consume(used);
+
+        BEAST_EXPECTS(ec == error::need_more, ec.message());
+        BEAST_EXPECT(!p.is_done());
+
+        ostream(b) <<
+            std::hex <<
+            (second_chunk_data_part1.size() +
+             second_chunk_data_part2.size() ) << "\r\n" <<
+            second_chunk_data_part1;
+
+        // Second chunk, part 1
+        used = p.put(multibufs(b.data()), ec);
+        b.consume(used);
+
+        BEAST_EXPECTS(!ec, ec.message());
+        BEAST_EXPECT(!p.is_done());
+
+        ostream(b) <<
+            second_chunk_data_part2 << "\r\n"
+            << "0\r\n\r\n";
+
+        // Second chunk, part 2
+        used = p.put(multibufs(b.data()), ec);
+        b.consume(used);
+
+        BEAST_EXPECTS(!ec, ec.message()); // <-- Error: bad chunk
+        if(p.need_eof())
+        {
+            p.put_eof(ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+        BEAST_EXPECT(p.is_done());
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    run() override
+    {
+        testFlatten();
+        testObsFold();
+        testCallbacks();
+        testRequestLine();
+        testStatusLine();
+        testFields();
+        testConnectionField();
+        testContentLengthField();
+        testTransferEncodingField();
+        testUpgradeField();
+        testPartial();
+        testLimits();
+        testBody();
+        testIssue430();
+        testIssue452();
+        testIssue496();
+        testIssue692();
+        testFuzz();
+        testRegression1();
+        testIssue1211();
+        testIssue1267();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,basic_parser);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/buffer_body.cpp b/src/boost/libs/beast/test/beast/http/buffer_body.cpp
new file mode 100644
index 000000000..14ce1413d
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/buffer_body.cpp
@@ -0,0 +1,65 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/buffer_body.hpp>
+
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/http/parser.hpp>
+#include <boost/beast/http/read.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class buffer_body_test : public beast::unit_test::suite
+{
+public:
+    void
+    testIssue1717()
+    {
+        net::io_context ioc;
+        test::stream ts{ioc};
+        ostream(ts.buffer()) <<
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length:3\r\n"
+            "\r\n"
+            "1.0";
+        error_code ec;
+        flat_buffer fb;
+        response_parser<buffer_body> p;
+        char buf[256];
+        p.get().body().data = buf;
+        p.get().body().size = sizeof(buf);
+        read_header(ts, fb, p, ec);
+        auto const bytes_transferred =
+            read(ts, fb, p, ec);
+        boost::ignore_unused(bytes_transferred);
+        BEAST_EXPECTS(! ec, ec.message());
+
+        // VFALCO What should the read algorithms return?
+        //BEAST_EXPECT(bytes_transferred == 3);
+    }
+
+    void
+    run() override
+    {
+        testIssue1717();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,buffer_body);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/chunk_encode.cpp b/src/boost/libs/beast/test/beast/http/chunk_encode.cpp
new file mode 100644
index 000000000..9f779e2e4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/chunk_encode.cpp
@@ -0,0 +1,298 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/chunk_encode.hpp>
+
+#include "message_fuzz.hpp"
+
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/static_string.hpp>
+#include <boost/beast/http/fields.hpp>
+#include <boost/beast/test/fuzz.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/optional.hpp>
+#include <random>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class chunk_encode_test
+    : public beast::unit_test::suite
+{
+public:
+    struct not_chunk_extensions {};
+
+    BOOST_STATIC_ASSERT(
+        detail::is_chunk_extensions<chunk_extensions>::value);
+    
+    BOOST_STATIC_ASSERT(
+        ! detail::is_chunk_extensions<not_chunk_extensions>::value);
+
+    template<class T, class... Args>
+    void
+    check(string_view match, Args&&... args)
+    {
+        T t(std::forward<Args>(args)...);
+        BEAST_EXPECT(buffers_to_string(t) == match);
+        T t2(t);
+        BEAST_EXPECT(buffers_to_string(t2) == match);
+        T t3(std::move(t2));
+        BEAST_EXPECT(buffers_to_string(t3) == match);
+    }
+
+    template<class T, class... Args>
+    void
+    check_fwd(string_view match, Args&&... args)
+    {
+        T t(std::forward<Args>(args)...);
+        BEAST_EXPECT(buffers_to_string(t) == match);
+        T t2(t);
+        BEAST_EXPECT(buffers_to_string(t2) == match);
+        T t3(std::move(t2));
+        BEAST_EXPECT(buffers_to_string(t3) == match);
+    }
+
+    using cb_t = net::const_buffer;
+
+    static
+    cb_t
+    cb(string_view s)
+    {
+        return {s.data(), s.size()};
+    }
+
+    void
+    testChunkCRLF()
+    {
+    #if ! defined(BOOST_GCC) || BOOST_GCC >= 50000
+        check<chunk_crlf>("\r\n");
+    #endif
+    }
+
+    void
+    testChunkHeader()
+    {
+        check<chunk_header>("10\r\n", 16u);
+
+        check<chunk_header>("20;x\r\n", 32u, ";x");
+
+        chunk_extensions exts;
+        exts.insert("y");
+        exts.insert("z");
+
+        check<chunk_header>("30;y;z\r\n", 48u, exts);
+
+        {
+            auto exts2 = exts;
+
+            check_fwd<chunk_header>(
+                "30;y;z\r\n", 48u, std::move(exts2));
+        }
+
+        check<chunk_header>("30;y;z\r\n", 48u, exts,
+            std::allocator<double>{});
+
+        {
+            auto exts2 = exts;
+
+            check<chunk_header>(
+                "30;y;z\r\n", 48u, std::move(exts2),
+                std::allocator<double>{});
+        }
+    }
+
+    void
+    testChunkBody()
+    {
+        check<chunk_body<cb_t>>(
+            "3\r\n***\r\n", cb("***"));
+        
+        check<chunk_body<cb_t>>(
+            "3;x\r\n***\r\n", cb("***"), ";x");
+
+        chunk_extensions exts;
+        exts.insert("y");
+        exts.insert("z");
+
+        check<chunk_body<cb_t>>(
+            "3;y;z\r\n***\r\n",
+            cb("***"), exts);
+
+        {
+            auto exts2 = exts;
+
+            check_fwd<chunk_body<cb_t>>(
+                "3;y;z\r\n***\r\n",
+                cb("***"), std::move(exts2));
+        }
+
+        check<chunk_body<cb_t>>(
+            "3;y;z\r\n***\r\n",
+            cb("***"), exts, std::allocator<double>{});
+
+        {
+            auto exts2 = exts;
+
+            check_fwd<chunk_body<cb_t>>(
+                "3;y;z\r\n***\r\n",
+                cb("***"), std::move(exts2),
+                std::allocator<double>{});
+        }
+    }
+
+    void
+    testChunkFinal()
+    {
+        check<chunk_last<>>(
+            "0\r\n\r\n");
+
+        check<chunk_last<cb_t>>(
+            "0\r\nMD5:ou812\r\n\r\n",
+            cb("MD5:ou812\r\n\r\n"));
+
+        fields trailers;
+        trailers.set(field::content_md5, "ou812");
+
+        check<chunk_last<fields>>(
+            "0\r\nContent-MD5: ou812\r\n\r\n",
+            trailers);
+
+        {
+            auto trailers2 = trailers;
+
+            check_fwd<chunk_last<fields>>(
+                "0\r\nContent-MD5: ou812\r\n\r\n",
+                std::move(trailers2));
+        }
+
+        check<chunk_last<fields>>(
+            "0\r\nContent-MD5: ou812\r\n\r\n",
+            trailers, std::allocator<double>{});
+
+        {
+            auto trailers2 = trailers;
+
+            check<chunk_last<fields>>(
+                "0\r\nContent-MD5: ou812\r\n\r\n",
+                std::move(trailers2), std::allocator<double>{});
+        }
+    }
+
+    void
+    testChunkExtensions()
+    {
+        auto const str =
+            [](chunk_extensions const& ce)
+            {
+                std::string s;
+                for(auto const& v : ce)
+                {
+                    s.append(std::string(v.first));
+                    s.push_back(',');
+                    if(! v.second.empty())
+                    {
+                        s.append(std::string(v.second));
+                        s.push_back(',');
+                    }
+                }
+                return s;
+            };
+        chunk_extensions ce;
+        ce.insert("x");
+        BEAST_EXPECT(ce.str() == ";x");
+        BEAST_EXPECT(str(ce) == "x,");
+        ce.insert("y", "z");
+        BEAST_EXPECT(ce.str() == ";x;y=z");
+        BEAST_EXPECT(str(ce) == "x,y,z,");
+        ce.insert("z", R"(")");
+        BEAST_EXPECT(ce.str() == R"(;x;y=z;z="\"")");
+        BEAST_EXPECT(str(ce)  == R"(x,y,z,z,",)");
+        ce.insert("p", R"(\)");
+        BEAST_EXPECT(ce.str() == R"(;x;y=z;z="\"";p="\\")");
+        BEAST_EXPECT(str(ce)  == R"(x,y,z,z,",p,\,)");
+        ce.insert("q", R"(1"2\)");
+        BEAST_EXPECT(ce.str() == R"(;x;y=z;z="\"";p="\\";q="1\"2\\")");
+        BEAST_EXPECT(str(ce)  == R"(x,y,z,z,",p,\,q,1"2\,)");
+    }
+
+    void
+    testParseChunkExtensions()
+    {
+        auto const grind =
+        [&](string_view s)
+        {
+            error_code ec;
+            static_string<200> ss{s};
+            test::fuzz_rand r;
+            for(auto i = 3; i--;)
+            {
+                test::fuzz(ss, 5, 5, r,
+                [&](string_view s)
+                {
+                    chunk_extensions c1;
+                    c1.parse(s, ec);
+                    if(ec)
+                    {
+                        pass();
+                        return;
+                    }
+                    chunk_extensions c2;
+                    c2.parse(c1.str(), ec);
+                    if(! BEAST_EXPECTS(! ec, ec.message()))
+                        return;
+                    chunk_extensions c3;
+                    for(auto const& v : c2)
+                        if(v.second.empty())
+                            c3.insert(v.first);
+                        else
+                            c3.insert(v.first, v.second);
+                    BEAST_EXPECTS(c2.str() == c3.str(), c3.str());
+                });
+            }
+        };
+        auto const good =
+        [&](string_view s)
+        {
+            error_code ec;
+            chunk_extensions ce;
+            ce.parse(s, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            grind(s);
+        };
+        auto const bad =
+        [&](string_view s)
+        {
+            error_code ec;
+            chunk_extensions ce;
+            ce.parse(s, ec);
+            BEAST_EXPECT(ec);
+            grind(s);
+        };
+        chunkExtensionsTest(good, bad);
+    }
+
+    void
+    run() override
+    {
+        testChunkCRLF();
+        testChunkHeader();
+        testChunkBody();
+        testChunkFinal();
+        testChunkExtensions();
+        testParseChunkExtensions();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,chunk_encode);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/dynamic_body.cpp b/src/boost/libs/beast/test/beast/http/dynamic_body.cpp
new file mode 100644
index 000000000..179731ee6
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/dynamic_body.cpp
@@ -0,0 +1,92 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/dynamic_body.hpp>
+
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/http/fields.hpp>
+#include <boost/beast/http/parser.hpp>
+#include <boost/beast/http/read.hpp>
+#include <boost/beast/http/write.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class dynamic_body_test : public beast::unit_test::suite
+{
+    net::io_context ioc_;
+
+public:
+    template<bool isRequest, class Body, class Fields>
+    static
+    std::string
+    to_string(message<isRequest, Body, Fields> const& m)
+    {
+        std::stringstream ss;
+        ss << m;
+        return ss.str();
+    }
+
+    void
+    test_success()
+    {
+        std::string const s =
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Content-Length: 3\r\n"
+            "\r\n"
+            "xyz";
+        test::stream ts(ioc_, s);
+        response_parser<dynamic_body> p;
+        multi_buffer b;
+        read(ts, b, p);
+        auto const& m = p.get();
+        BEAST_EXPECT(buffers_to_string(m.body().data()) == "xyz");
+        BEAST_EXPECT(to_string(m) == s);
+    }
+
+    void
+    test_issue1581()
+    {
+        std::string const s =
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Content-Length: 132\r\n"
+            "\r\n"
+            "xyzxyzxyzxyzxyzxyzxyzxyzxyzxyzxyz"
+            "xyzxyzxyzxyzxyzxyzxyzxyzxyzxyzxyz"
+            "xyzxyzxyzxyzxyzxyzxyzxyzxyzxyzxyz"
+            "xyzxyzxyzxyzxyzxyzxyzxyzxyzxyzxyz";
+        test::stream ts(ioc_, s);
+        response_parser<dynamic_body> p;
+        multi_buffer b;
+        p.get().body().max_size(64);
+        error_code ec;
+        read(ts, b, p, ec);
+        BEAST_EXPECT(ec == http::error::buffer_overflow);
+    }
+
+    void
+    run() override
+    {
+        test_success();
+        test_issue1581();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,dynamic_body);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/empty_body.cpp b/src/boost/libs/beast/test/beast/http/empty_body.cpp
new file mode 100644
index 000000000..96db2bc9d
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/empty_body.cpp
@@ -0,0 +1,23 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/empty_body.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+BOOST_STATIC_ASSERT(is_body<empty_body>::value);
+BOOST_STATIC_ASSERT(is_body_writer<empty_body>::value);
+BOOST_STATIC_ASSERT(is_body_reader<empty_body>::value);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/error.cpp b/src/boost/libs/beast/test/beast/http/error.cpp
new file mode 100644
index 000000000..8689cd9d4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/error.cpp
@@ -0,0 +1,78 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/error.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <memory>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class error_test : public unit_test::suite
+{
+public:
+    void
+    check(char const* name, error ev)
+    {
+        auto const ec = make_error_code(ev);
+        auto const& cat = make_error_code(
+            static_cast<http::error>(0)).category();
+        BEAST_EXPECT(std::string(ec.category().name()) == name);
+        BEAST_EXPECT(! ec.message().empty());
+        BEAST_EXPECT(
+            std::addressof(ec.category()) == std::addressof(cat));
+        BEAST_EXPECT(cat.equivalent(
+            static_cast<std::underlying_type<error>::type>(ev),
+                ec.category().default_error_condition(
+                    static_cast<std::underlying_type<error>::type>(ev))));
+        BEAST_EXPECT(cat.equivalent(ec,
+            static_cast<std::underlying_type<error>::type>(ev)));
+    }
+
+    void
+    run() override
+    {
+        check("beast.http", error::end_of_stream);
+        check("beast.http", error::partial_message);
+        check("beast.http", error::need_more);
+        check("beast.http", error::unexpected_body);
+        check("beast.http", error::need_buffer);
+        check("beast.http", error::end_of_chunk);
+        check("beast.http", error::buffer_overflow);
+        check("beast.http", error::header_limit);
+        check("beast.http", error::body_limit);
+        check("beast.http", error::bad_alloc);
+
+        check("beast.http", error::bad_line_ending);
+        check("beast.http", error::bad_method);
+        check("beast.http", error::bad_target);
+        check("beast.http", error::bad_version);
+        check("beast.http", error::bad_status);
+        check("beast.http", error::bad_reason);
+        check("beast.http", error::bad_field);
+        check("beast.http", error::bad_value);
+        check("beast.http", error::bad_content_length);
+        check("beast.http", error::bad_transfer_encoding);
+        check("beast.http", error::bad_chunk);
+        check("beast.http", error::bad_chunk_extension);
+        check("beast.http", error::bad_obs_fold);
+
+        check("beast.http", error::stale_parser);
+        check("beast.http", error::short_read);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,error);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/field.cpp b/src/boost/libs/beast/test/beast/http/field.cpp
new file mode 100644
index 000000000..d512f672c
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/field.cpp
@@ -0,0 +1,410 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/field.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class field_test : public beast::unit_test::suite
+{
+public:
+    void
+    testField()
+    {
+        auto const match =
+            [&](field f, string_view s)
+            {
+                BEAST_EXPECT(iequals(to_string(f), s));
+                BEAST_EXPECT(string_to_field(s) == f);
+            };
+
+        match(field::accept, "accept");
+        match(field::accept, "aCcept");
+        match(field::accept, "ACCEPT");
+
+
+        match(field::a_im, "A-IM");
+        match(field::accept, "Accept");
+        match(field::accept_additions, "Accept-Additions");
+        match(field::accept_charset, "Accept-Charset");
+        match(field::accept_datetime, "Accept-Datetime");
+        match(field::accept_encoding, "Accept-Encoding");
+        match(field::accept_features, "Accept-Features");
+        match(field::accept_language, "Accept-Language");
+        match(field::accept_patch, "Accept-Patch");
+        match(field::accept_post, "Accept-Post");
+        match(field::accept_ranges, "Accept-Ranges");
+        match(field::access_control, "Access-Control");
+        match(field::access_control_allow_credentials, "Access-Control-Allow-Credentials");
+        match(field::access_control_allow_headers, "Access-Control-Allow-Headers");
+        match(field::access_control_allow_methods, "Access-Control-Allow-Methods");
+        match(field::access_control_allow_origin, "Access-Control-Allow-Origin");
+        match(field::access_control_expose_headers, "Access-Control-Expose-Headers");
+        match(field::access_control_max_age, "Access-Control-Max-Age");
+        match(field::access_control_request_headers, "Access-Control-Request-Headers");
+        match(field::access_control_request_method, "Access-Control-Request-Method");
+        match(field::age, "Age");
+        match(field::allow, "Allow");
+        match(field::alpn, "ALPN");
+        match(field::also_control, "Also-Control");
+        match(field::alt_svc, "Alt-Svc");
+        match(field::alt_used, "Alt-Used");
+        match(field::alternate_recipient, "Alternate-Recipient");
+        match(field::alternates, "Alternates");
+        match(field::apparently_to, "Apparently-To");
+        match(field::apply_to_redirect_ref, "Apply-To-Redirect-Ref");
+        match(field::approved, "Approved");
+        match(field::archive, "Archive");
+        match(field::archived_at, "Archived-At");
+        match(field::article_names, "Article-Names");
+        match(field::article_updates, "Article-Updates");
+        match(field::authentication_control, "Authentication-Control");
+        match(field::authentication_info, "Authentication-Info");
+        match(field::authentication_results, "Authentication-Results");
+        match(field::authorization, "Authorization");
+        match(field::auto_submitted, "Auto-Submitted");
+        match(field::autoforwarded, "Autoforwarded");
+        match(field::autosubmitted, "Autosubmitted");
+        match(field::base, "Base");
+        match(field::bcc, "Bcc");
+        match(field::body, "Body");
+        match(field::c_ext, "C-Ext");
+        match(field::c_man, "C-Man");
+        match(field::c_opt, "C-Opt");
+        match(field::c_pep, "C-PEP");
+        match(field::c_pep_info, "C-PEP-Info");
+        match(field::cache_control, "Cache-Control");
+        match(field::caldav_timezones, "CalDAV-Timezones");
+        match(field::cancel_key, "Cancel-Key");
+        match(field::cancel_lock, "Cancel-Lock");
+        match(field::cc, "Cc");
+        match(field::close, "Close");
+        match(field::comments, "Comments");
+        match(field::compliance, "Compliance");
+        match(field::connection, "Connection");
+        match(field::content_alternative, "Content-Alternative");
+        match(field::content_base, "Content-Base");
+        match(field::content_description, "Content-Description");
+        match(field::content_disposition, "Content-Disposition");
+        match(field::content_duration, "Content-Duration");
+        match(field::content_encoding, "Content-Encoding");
+        match(field::content_features, "Content-features");
+        match(field::content_id, "Content-ID");
+        match(field::content_identifier, "Content-Identifier");
+        match(field::content_language, "Content-Language");
+        match(field::content_length, "Content-Length");
+        match(field::content_location, "Content-Location");
+        match(field::content_md5, "Content-MD5");
+        match(field::content_range, "Content-Range");
+        match(field::content_return, "Content-Return");
+        match(field::content_script_type, "Content-Script-Type");
+        match(field::content_style_type, "Content-Style-Type");
+        match(field::content_transfer_encoding, "Content-Transfer-Encoding");
+        match(field::content_type, "Content-Type");
+        match(field::content_version, "Content-Version");
+        match(field::control, "Control");
+        match(field::conversion, "Conversion");
+        match(field::conversion_with_loss, "Conversion-With-Loss");
+        match(field::cookie, "Cookie");
+        match(field::cookie2, "Cookie2");
+        match(field::cost, "Cost");
+        match(field::dasl, "DASL");
+        match(field::date, "Date");
+        match(field::date_received, "Date-Received");
+        match(field::dav, "DAV");
+        match(field::default_style, "Default-Style");
+        match(field::deferred_delivery, "Deferred-Delivery");
+        match(field::delivery_date, "Delivery-Date");
+        match(field::delta_base, "Delta-Base");
+        match(field::depth, "Depth");
+        match(field::derived_from, "Derived-From");
+        match(field::destination, "Destination");
+        match(field::differential_id, "Differential-ID");
+        match(field::digest, "Digest");
+        match(field::discarded_x400_ipms_extensions, "Discarded-X400-IPMS-Extensions");
+        match(field::discarded_x400_mts_extensions, "Discarded-X400-MTS-Extensions");
+        match(field::disclose_recipients, "Disclose-Recipients");
+        match(field::disposition_notification_options, "Disposition-Notification-Options");
+        match(field::disposition_notification_to, "Disposition-Notification-To");
+        match(field::distribution, "Distribution");
+        match(field::dkim_signature, "DKIM-Signature");
+        match(field::dl_expansion_history, "DL-Expansion-History");
+        match(field::downgraded_bcc, "Downgraded-Bcc");
+        match(field::downgraded_cc, "Downgraded-Cc");
+        match(field::downgraded_disposition_notification_to, "Downgraded-Disposition-Notification-To");
+        match(field::downgraded_final_recipient, "Downgraded-Final-Recipient");
+        match(field::downgraded_from, "Downgraded-From");
+        match(field::downgraded_in_reply_to, "Downgraded-In-Reply-To");
+        match(field::downgraded_mail_from, "Downgraded-Mail-From");
+        match(field::downgraded_message_id, "Downgraded-Message-Id");
+        match(field::downgraded_original_recipient, "Downgraded-Original-Recipient");
+        match(field::downgraded_rcpt_to, "Downgraded-Rcpt-To");
+        match(field::downgraded_references, "Downgraded-References");
+        match(field::downgraded_reply_to, "Downgraded-Reply-To");
+        match(field::downgraded_resent_bcc, "Downgraded-Resent-Bcc");
+        match(field::downgraded_resent_cc, "Downgraded-Resent-Cc");
+        match(field::downgraded_resent_from, "Downgraded-Resent-From");
+        match(field::downgraded_resent_reply_to, "Downgraded-Resent-Reply-To");
+        match(field::downgraded_resent_sender, "Downgraded-Resent-Sender");
+        match(field::downgraded_resent_to, "Downgraded-Resent-To");
+        match(field::downgraded_return_path, "Downgraded-Return-Path");
+        match(field::downgraded_sender, "Downgraded-Sender");
+        match(field::downgraded_to, "Downgraded-To");
+        match(field::ediint_features, "EDIINT-Features");
+        match(field::eesst_version, "Eesst-Version");
+        match(field::encoding, "Encoding");
+        match(field::encrypted, "Encrypted");
+        match(field::errors_to, "Errors-To");
+        match(field::etag, "ETag");
+        match(field::expect, "Expect");
+        match(field::expires, "Expires");
+        match(field::expiry_date, "Expiry-Date");
+        match(field::ext, "Ext");
+        match(field::followup_to, "Followup-To");
+        match(field::forwarded, "Forwarded");
+        match(field::from, "From");
+        match(field::generate_delivery_report, "Generate-Delivery-Report");
+        match(field::getprofile, "GetProfile");
+        match(field::hobareg, "Hobareg");
+        match(field::host, "Host");
+        match(field::http2_settings, "HTTP2-Settings");
+        match(field::if_, "If");
+        match(field::if_match, "If-Match");
+        match(field::if_modified_since, "If-Modified-Since");
+        match(field::if_none_match, "If-None-Match");
+        match(field::if_range, "If-Range");
+        match(field::if_schedule_tag_match, "If-Schedule-Tag-Match");
+        match(field::if_unmodified_since, "If-Unmodified-Since");
+        match(field::im, "IM");
+        match(field::importance, "Importance");
+        match(field::in_reply_to, "In-Reply-To");
+        match(field::incomplete_copy, "Incomplete-Copy");
+        match(field::injection_date, "Injection-Date");
+        match(field::injection_info, "Injection-Info");
+        match(field::jabber_id, "Jabber-ID");
+        match(field::keep_alive, "Keep-Alive");
+        match(field::keywords, "Keywords");
+        match(field::label, "Label");
+        match(field::language, "Language");
+        match(field::last_modified, "Last-Modified");
+        match(field::latest_delivery_time, "Latest-Delivery-Time");
+        match(field::lines, "Lines");
+        match(field::link, "Link");
+        match(field::list_archive, "List-Archive");
+        match(field::list_help, "List-Help");
+        match(field::list_id, "List-ID");
+        match(field::list_owner, "List-Owner");
+        match(field::list_post, "List-Post");
+        match(field::list_subscribe, "List-Subscribe");
+        match(field::list_unsubscribe, "List-Unsubscribe");
+        match(field::list_unsubscribe_post, "List-Unsubscribe-Post");
+        match(field::location, "Location");
+        match(field::lock_token, "Lock-Token");
+        match(field::man, "Man");
+        match(field::max_forwards, "Max-Forwards");
+        match(field::memento_datetime, "Memento-Datetime");
+        match(field::message_context, "Message-Context");
+        match(field::message_id, "Message-ID");
+        match(field::message_type, "Message-Type");
+        match(field::meter, "Meter");
+        match(field::method_check, "Method-Check");
+        match(field::method_check_expires, "Method-Check-Expires");
+        match(field::mime_version, "MIME-Version");
+        match(field::mmhs_acp127_message_identifier, "MMHS-Acp127-Message-Identifier");
+        match(field::mmhs_authorizing_users, "MMHS-Authorizing-Users");
+        match(field::mmhs_codress_message_indicator, "MMHS-Codress-Message-Indicator");
+        match(field::mmhs_copy_precedence, "MMHS-Copy-Precedence");
+        match(field::mmhs_exempted_address, "MMHS-Exempted-Address");
+        match(field::mmhs_extended_authorisation_info, "MMHS-Extended-Authorisation-Info");
+        match(field::mmhs_handling_instructions, "MMHS-Handling-Instructions");
+        match(field::mmhs_message_instructions, "MMHS-Message-Instructions");
+        match(field::mmhs_message_type, "MMHS-Message-Type");
+        match(field::mmhs_originator_plad, "MMHS-Originator-PLAD");
+        match(field::mmhs_originator_reference, "MMHS-Originator-Reference");
+        match(field::mmhs_other_recipients_indicator_cc, "MMHS-Other-Recipients-Indicator-CC");
+        match(field::mmhs_other_recipients_indicator_to, "MMHS-Other-Recipients-Indicator-To");
+        match(field::mmhs_primary_precedence, "MMHS-Primary-Precedence");
+        match(field::mmhs_subject_indicator_codes, "MMHS-Subject-Indicator-Codes");
+        match(field::mt_priority, "MT-Priority");
+        match(field::negotiate, "Negotiate");
+        match(field::newsgroups, "Newsgroups");
+        match(field::nntp_posting_date, "NNTP-Posting-Date");
+        match(field::nntp_posting_host, "NNTP-Posting-Host");
+        match(field::non_compliance, "Non-Compliance");
+        match(field::obsoletes, "Obsoletes");
+        match(field::opt, "Opt");
+        match(field::optional, "Optional");
+        match(field::optional_www_authenticate, "Optional-WWW-Authenticate");
+        match(field::ordering_type, "Ordering-Type");
+        match(field::organization, "Organization");
+        match(field::origin, "Origin");
+        match(field::original_encoded_information_types, "Original-Encoded-Information-Types");
+        match(field::original_from, "Original-From");
+        match(field::original_message_id, "Original-Message-ID");
+        match(field::original_recipient, "Original-Recipient");
+        match(field::original_sender, "Original-Sender");
+        match(field::original_subject, "Original-Subject");
+        match(field::originator_return_address, "Originator-Return-Address");
+        match(field::overwrite, "Overwrite");
+        match(field::p3p, "P3P");
+        match(field::path, "Path");
+        match(field::pep, "PEP");
+        match(field::pep_info, "Pep-Info");
+        match(field::pics_label, "PICS-Label");
+        match(field::position, "Position");
+        match(field::posting_version, "Posting-Version");
+        match(field::pragma, "Pragma");
+        match(field::prefer, "Prefer");
+        match(field::preference_applied, "Preference-Applied");
+        match(field::prevent_nondelivery_report, "Prevent-NonDelivery-Report");
+        match(field::priority, "Priority");
+        match(field::privicon, "Privicon");
+        match(field::profileobject, "ProfileObject");
+        match(field::protocol, "Protocol");
+        match(field::protocol_info, "Protocol-Info");
+        match(field::protocol_query, "Protocol-Query");
+        match(field::protocol_request, "Protocol-Request");
+        match(field::proxy_authenticate, "Proxy-Authenticate");
+        match(field::proxy_authentication_info, "Proxy-Authentication-Info");
+        match(field::proxy_authorization, "Proxy-Authorization");
+        match(field::proxy_connection, "Proxy-Connection");
+        match(field::proxy_features, "Proxy-Features");
+        match(field::proxy_instruction, "Proxy-Instruction");
+        match(field::public_, "Public");
+        match(field::public_key_pins, "Public-Key-Pins");
+        match(field::public_key_pins_report_only, "Public-Key-Pins-Report-Only");
+        match(field::range, "Range");
+        match(field::received, "Received");
+        match(field::received_spf, "Received-SPF");
+        match(field::redirect_ref, "Redirect-Ref");
+        match(field::references, "References");
+        match(field::referer, "Referer");
+        match(field::referer_root, "Referer-Root");
+        match(field::relay_version, "Relay-Version");
+        match(field::reply_by, "Reply-By");
+        match(field::reply_to, "Reply-To");
+        match(field::require_recipient_valid_since, "Require-Recipient-Valid-Since");
+        match(field::resent_bcc, "Resent-Bcc");
+        match(field::resent_cc, "Resent-Cc");
+        match(field::resent_date, "Resent-Date");
+        match(field::resent_from, "Resent-From");
+        match(field::resent_message_id, "Resent-Message-ID");
+        match(field::resent_reply_to, "Resent-Reply-To");
+        match(field::resent_sender, "Resent-Sender");
+        match(field::resent_to, "Resent-To");
+        match(field::resolution_hint, "Resolution-Hint");
+        match(field::resolver_location, "Resolver-Location");
+        match(field::retry_after, "Retry-After");
+        match(field::return_path, "Return-Path");
+        match(field::safe, "Safe");
+        match(field::schedule_reply, "Schedule-Reply");
+        match(field::schedule_tag, "Schedule-Tag");
+        match(field::sec_websocket_accept, "Sec-WebSocket-Accept");
+        match(field::sec_websocket_extensions, "Sec-WebSocket-Extensions");
+        match(field::sec_websocket_key, "Sec-WebSocket-Key");
+        match(field::sec_websocket_protocol, "Sec-WebSocket-Protocol");
+        match(field::sec_websocket_version, "Sec-WebSocket-Version");
+        match(field::security_scheme, "Security-Scheme");
+        match(field::see_also, "See-Also");
+        match(field::sender, "Sender");
+        match(field::sensitivity, "Sensitivity");
+        match(field::server, "Server");
+        match(field::set_cookie, "Set-Cookie");
+        match(field::set_cookie2, "Set-Cookie2");
+        match(field::setprofile, "SetProfile");
+        match(field::sio_label, "SIO-Label");
+        match(field::sio_label_history, "SIO-Label-History");
+        match(field::slug, "SLUG");
+        match(field::soapaction, "SoapAction");
+        match(field::solicitation, "Solicitation");
+        match(field::status_uri, "Status-URI");
+        match(field::strict_transport_security, "Strict-Transport-Security");
+        match(field::subject, "Subject");
+        match(field::subok, "SubOK");
+        match(field::subst, "Subst");
+        match(field::summary, "Summary");
+        match(field::supersedes, "Supersedes");
+        match(field::surrogate_capability, "Surrogate-Capability");
+        match(field::surrogate_control, "Surrogate-Control");
+        match(field::tcn, "TCN");
+        match(field::te, "TE");
+        match(field::timeout, "Timeout");
+        match(field::title, "Title");
+        match(field::to, "To");
+        match(field::topic, "Topic");
+        match(field::trailer, "Trailer");
+        match(field::transfer_encoding, "Transfer-Encoding");
+        match(field::ttl, "TTL");
+        match(field::ua_color, "UA-Color");
+        match(field::ua_media, "UA-Media");
+        match(field::ua_pixels, "UA-Pixels");
+        match(field::ua_resolution, "UA-Resolution");
+        match(field::ua_windowpixels, "UA-Windowpixels");
+        match(field::upgrade, "Upgrade");
+        match(field::urgency, "Urgency");
+        match(field::uri, "URI");
+        match(field::user_agent, "User-Agent");
+        match(field::variant_vary, "Variant-Vary");
+        match(field::vary, "Vary");
+        match(field::vbr_info, "VBR-Info");
+        match(field::version, "Version");
+        match(field::via, "Via");
+        match(field::want_digest, "Want-Digest");
+        match(field::warning, "Warning");
+        match(field::www_authenticate, "WWW-Authenticate");
+        match(field::x_archived_at, "X-Archived-At");
+        match(field::x_device_accept, "X-Device-Accept");
+        match(field::x_device_accept_charset, "X-Device-Accept-Charset");
+        match(field::x_device_accept_encoding, "X-Device-Accept-Encoding");
+        match(field::x_device_accept_language, "X-Device-Accept-Language");
+        match(field::x_device_user_agent, "X-Device-User-Agent");
+        match(field::x_frame_options, "X-Frame-Options");
+        match(field::x_mittente, "X-Mittente");
+        match(field::x_pgp_sig, "X-PGP-Sig");
+        match(field::x_ricevuta, "X-Ricevuta");
+        match(field::x_riferimento_message_id, "X-Riferimento-Message-ID");
+        match(field::x_tiporicevuta, "X-TipoRicevuta");
+        match(field::x_trasporto, "X-Trasporto");
+        match(field::x_verificasicurezza, "X-VerificaSicurezza");
+        match(field::x400_content_identifier, "X400-Content-Identifier");
+        match(field::x400_content_return, "X400-Content-Return");
+        match(field::x400_content_type, "X400-Content-Type");
+        match(field::x400_mts_identifier, "X400-MTS-Identifier");
+        match(field::x400_originator, "X400-Originator");
+        match(field::x400_received, "X400-Received");
+        match(field::x400_recipients, "X400-Recipients");
+        match(field::x400_trace, "X400-Trace");
+        match(field::xref, "Xref");
+
+        auto const unknown =
+            [&](string_view s)
+            {
+                BEAST_EXPECT(string_to_field(s) == field::unknown);
+            };
+        unknown("");
+        unknown("x");
+    }
+
+    void run() override
+    {
+        testField();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,field);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/fields.cpp b/src/boost/libs/beast/test/beast/http/fields.cpp
new file mode 100644
index 000000000..7ddb9d441
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/fields.cpp
@@ -0,0 +1,1029 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/fields.hpp>
+
+#include <boost/beast/http/empty_body.hpp>
+#include <boost/beast/http/message.hpp>
+#include <boost/beast/http/type_traits.hpp>
+#include <boost/beast/test/test_allocator.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class fields_test : public beast::unit_test::suite
+{
+public:
+    static constexpr std::size_t max_static_buffer =
+        sizeof(beast::detail::temporary_buffer);
+
+    template<class T>
+    class test_allocator
+    {
+    public:
+        using value_type = T;
+
+        test_allocator() noexcept(false) {}
+
+        template<class U, class = typename
+            std::enable_if<!std::is_same<test_allocator, U>::value>::type>
+        test_allocator(test_allocator<U> const&) noexcept {}
+
+        value_type*
+        allocate(std::size_t n)
+        {
+            return static_cast<value_type*>(::operator new (n*sizeof(value_type)));
+        }
+
+        void
+        deallocate(value_type* p, std::size_t) noexcept
+        {
+            ::operator delete(p);
+        }
+
+        template<class U>
+        friend
+        bool
+        operator==(test_allocator<T> const&, test_allocator<U> const&) noexcept
+        {
+            return true;
+        }
+
+        template<class U>
+        friend
+        bool
+        operator!=(test_allocator<T> const& x, test_allocator<U> const& y) noexcept
+        {
+            return !(x == y);
+        }
+    };
+
+    using test_fields = basic_fields<test_allocator<char>>;
+
+    BOOST_STATIC_ASSERT(is_fields<fields>::value);
+    BOOST_STATIC_ASSERT(is_fields<test_fields>::value);
+
+    // std::allocator is noexcept movable, fields should satisfy
+    // these constraints as well.
+    BOOST_STATIC_ASSERT(std::is_nothrow_move_constructible<fields>::value);
+    BOOST_STATIC_ASSERT(std::is_nothrow_move_assignable<fields>::value);
+
+    // Check if basic_fields respects throw-constructibility and
+    // propagate_on_container_move_assignment of the allocator.
+    BOOST_STATIC_ASSERT(std::is_nothrow_move_constructible<test_fields>::value);
+    BOOST_STATIC_ASSERT(!std::is_nothrow_move_assignable<test_fields>::value);
+
+    template<class Allocator>
+    using fa_t = basic_fields<Allocator>;
+
+    using f_t = fa_t<std::allocator<char>>;
+
+    template<class Allocator>
+    static
+    void
+    fill(std::size_t n, basic_fields<Allocator>& f)
+    {
+        for(std::size_t i = 1; i<= n; ++i)
+            f.insert(std::to_string(i), i);
+    }
+
+    template<class U, class V>
+    static
+    void
+    self_assign(U& u, V&& v)
+    {
+        u = std::forward<V>(v);
+    }
+
+    template<class Alloc>
+    static
+    bool
+    empty(basic_fields<Alloc> const& f)
+    {
+        return f.begin() == f.end();
+    }
+
+    template<class Alloc>
+    static
+    std::size_t
+    size(basic_fields<Alloc> const& f)
+    {
+        return std::distance(f.begin(), f.end());
+    }
+
+    void
+    testMembers()
+    {
+        using namespace test;
+
+        // compare equal
+        using equal_t = test::test_allocator<char,
+            true, true, true, true, true>;
+
+        // compare not equal
+        using unequal_t = test::test_allocator<char,
+            false, true, true, true, true>;
+
+        // construction
+        {
+            {
+                fields f;
+                BEAST_EXPECT(f.begin() == f.end());
+            }
+            {
+                unequal_t a1;
+                basic_fields<unequal_t> f{a1};
+                BEAST_EXPECT(f.get_allocator() == a1);
+                BEAST_EXPECT(f.get_allocator() != unequal_t{});
+            }
+        }
+
+        // move construction
+        {
+            {
+                basic_fields<equal_t> f1;
+                BEAST_EXPECT(f1.get_allocator()->nmove == 0);
+                f1.insert("1", "1");
+                BEAST_EXPECT(f1["1"] == "1");
+                basic_fields<equal_t> f2{std::move(f1)};
+                BEAST_EXPECT(f2.get_allocator()->nmove == 1);
+                BEAST_EXPECT(f2["1"] == "1");
+                BEAST_EXPECT(f1["1"] == "");
+            }
+            // allocators equal
+            {
+                basic_fields<equal_t> f1;
+                f1.insert("1", "1");
+                equal_t a;
+                basic_fields<equal_t> f2{std::move(f1), a};
+                BEAST_EXPECT(f2["1"] == "1");
+                BEAST_EXPECT(f1["1"] == "");
+            }
+            {
+                // allocators unequal
+                basic_fields<unequal_t> f1;
+                f1.insert("1", "1");
+                unequal_t a;
+                basic_fields<unequal_t> f2{std::move(f1), a};
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+        }
+
+        // copy construction
+        {
+            {
+                basic_fields<equal_t> f1;
+                f1.insert("1", "1");
+                basic_fields<equal_t> f2{f1};
+                BEAST_EXPECT(f1.get_allocator() == f2.get_allocator());
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+            {
+                basic_fields<unequal_t> f1;
+                f1.insert("1", "1");
+                unequal_t a;
+                basic_fields<unequal_t> f2(f1, a);
+                BEAST_EXPECT(f1.get_allocator() != f2.get_allocator());
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+            {
+                basic_fields<equal_t> f1;
+                f1.insert("1", "1");
+                basic_fields<unequal_t> f2(f1);
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+            {
+                basic_fields<unequal_t> f1;
+                f1.insert("1", "1");
+                equal_t a;
+                basic_fields<equal_t> f2(f1, a);
+                BEAST_EXPECT(f2.get_allocator() == a);
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+        }
+
+        // move assignment
+        {
+            {
+                fields f1;
+                f1.insert("1", "1");
+                fields f2;
+                f2 = std::move(f1);
+                BEAST_EXPECT(f1.begin() == f1.end());
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+            {
+                // propagate_on_container_move_assignment : true
+                using pocma_t = test::test_allocator<char,
+                    true, true, true, true, true>;
+                basic_fields<pocma_t> f1;
+                f1.insert("1", "1");
+                basic_fields<pocma_t> f2;
+                f2 = std::move(f1);
+                BEAST_EXPECT(f1.begin() == f1.end());
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+            {
+                // propagate_on_container_move_assignment : false
+                using pocma_t = test::test_allocator<char,
+                    true, true, false, true, true>;
+                basic_fields<pocma_t> f1;
+                f1.insert("1", "1");
+                basic_fields<pocma_t> f2;
+                f2 = std::move(f1);
+                BEAST_EXPECT(f1.begin() == f1.end());
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+        }
+
+        // copy assignment
+        {
+            {
+                fields f1;
+                f1.insert("1", "1");
+                fields f2;
+                f2 = f1;
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2["1"] == "1");
+                basic_fields<equal_t> f3;
+                f3 = f2;
+                BEAST_EXPECT(f3["1"] == "1");
+            }
+            {
+                // propagate_on_container_copy_assignment : true
+                using pocca_t = test::test_allocator<char,
+                    true, true, true, true, true>;
+                basic_fields<pocca_t> f1;
+                f1.insert("1", "1");
+                basic_fields<pocca_t> f2;
+                f2 = f1;
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+            {
+                // propagate_on_container_copy_assignment : false
+                using pocca_t = test::test_allocator<char,
+                    true, false, true, true, true>;
+                basic_fields<pocca_t> f1;
+                f1.insert("1", "1");
+                basic_fields<pocca_t> f2;
+                f2 = f1;
+                BEAST_EXPECT(f2["1"] == "1");
+            }
+        }
+
+        // swap
+        {
+            {
+                // propagate_on_container_swap : true
+                using pocs_t = test::test_allocator<char,
+                    false, true, true, true, true>;
+                pocs_t a1, a2;
+                BEAST_EXPECT(a1 != a2);
+                basic_fields<pocs_t> f1{a1};
+                f1.insert("1", "1");
+                basic_fields<pocs_t> f2{a2};
+                BEAST_EXPECT(f1.get_allocator() == a1);
+                BEAST_EXPECT(f2.get_allocator() == a2);
+                swap(f1, f2);
+                BEAST_EXPECT(f1.get_allocator() == a2);
+                BEAST_EXPECT(f2.get_allocator() == a1);
+                BEAST_EXPECT(f1.begin() == f1.end());
+                BEAST_EXPECT(f2["1"] == "1");
+                swap(f1, f2);
+                BEAST_EXPECT(f1.get_allocator() == a1);
+                BEAST_EXPECT(f2.get_allocator() == a2);
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2.begin() == f2.end());
+            }
+            {
+                // propagate_on_container_swap : false
+                using pocs_t = test::test_allocator<char,
+                    true, true, true, false, true>;
+                pocs_t a1, a2;
+                BEAST_EXPECT(a1 == a2);
+                BEAST_EXPECT(a1.id() != a2.id());
+                basic_fields<pocs_t> f1{a1};
+                f1.insert("1", "1");
+                basic_fields<pocs_t> f2{a2};
+                BEAST_EXPECT(f1.get_allocator() == a1);
+                BEAST_EXPECT(f2.get_allocator() == a2);
+                swap(f1, f2);
+                BEAST_EXPECT(f1.get_allocator().id() == a1.id());
+                BEAST_EXPECT(f2.get_allocator().id() == a2.id());
+                BEAST_EXPECT(f1.begin() == f1.end());
+                BEAST_EXPECT(f2["1"] == "1");
+                swap(f1, f2);
+                BEAST_EXPECT(f1.get_allocator().id() == a1.id());
+                BEAST_EXPECT(f2.get_allocator().id() == a2.id());
+                BEAST_EXPECT(f1["1"] == "1");
+                BEAST_EXPECT(f2.begin() == f2.end());
+            }
+        }
+
+        // operations
+        {
+            fields f;
+            f.insert(field::user_agent, "x");
+            BEAST_EXPECT(f.count(field::user_agent));
+            BEAST_EXPECT(f.count(to_string(field::user_agent)));
+            BEAST_EXPECT(f.count(field::user_agent) == 1);
+            BEAST_EXPECT(f.count(to_string(field::user_agent)) == 1);
+            f.insert(field::user_agent, "y");
+            BEAST_EXPECT(f.count(field::user_agent) == 2);
+        }
+    }
+
+    void testHeaders()
+    {
+        f_t f1;
+        BEAST_EXPECT(empty(f1));
+        fill(1, f1);
+        BEAST_EXPECT(size(f1) == 1);
+        f_t f2;
+        f2 = f1;
+        BEAST_EXPECT(size(f2) == 1);
+        f2.insert("2", "2");
+        BEAST_EXPECT(std::distance(f2.begin(), f2.end()) == 2);
+        f1 = std::move(f2);
+        BEAST_EXPECT(size(f1) == 2);
+        BEAST_EXPECT(size(f2) == 0);
+        f_t f3(std::move(f1));
+        BEAST_EXPECT(size(f3) == 2);
+        BEAST_EXPECT(size(f1) == 0);
+        self_assign(f3, std::move(f3));
+        BEAST_EXPECT(size(f3) == 2);
+        BEAST_EXPECT(f2.erase("Not-Present") == 0);
+    }
+
+    void testRFC2616()
+    {
+        f_t f;
+        f.insert("a", "w");
+        f.insert("a", "x");
+        f.insert("aa", "y");
+        f.insert("f", "z");
+        BEAST_EXPECT(f.count("a") == 2);
+    }
+
+    void testErase()
+    {
+        f_t f;
+        f.insert("a", "w");
+        f.insert("a", "x");
+        f.insert("aa", "y");
+        f.insert("f", "z");
+        BEAST_EXPECT(size(f) == 4);
+        f.erase("a");
+        BEAST_EXPECT(size(f) == 2);
+    }
+
+    void testIteratorErase()
+    {
+        f_t f;
+        f.insert("a", "x");
+        f.insert("b", "y");
+        f.insert("c", "z");
+        BEAST_EXPECT(size(f) == 3);
+        f_t::const_iterator i = std::next(f.begin());
+        f.erase(i);
+        BEAST_EXPECT(size(f) == 2);
+        BEAST_EXPECT(std::next(f.begin(), 0)->name_string() == "a");
+        BEAST_EXPECT(std::next(f.begin(), 1)->name_string() == "c");
+    }
+
+    void
+    testContainer()
+    {
+        {
+            // group fields
+            fields f;
+            f.insert(field::age,   1);
+            f.insert(field::body,  2);
+            f.insert(field::close, 3);
+            f.insert(field::body,  4);
+            BEAST_EXPECT(std::next(f.begin(), 0)->name() == field::age);
+            BEAST_EXPECT(std::next(f.begin(), 1)->name() == field::body);
+            BEAST_EXPECT(std::next(f.begin(), 2)->name() == field::body);
+            BEAST_EXPECT(std::next(f.begin(), 3)->name() == field::close);
+            BEAST_EXPECT(std::next(f.begin(), 0)->name_string() == "Age");
+            BEAST_EXPECT(std::next(f.begin(), 1)->name_string() == "Body");
+            BEAST_EXPECT(std::next(f.begin(), 2)->name_string() == "Body");
+            BEAST_EXPECT(std::next(f.begin(), 3)->name_string() == "Close");
+            BEAST_EXPECT(std::next(f.begin(), 0)->value() == "1");
+            BEAST_EXPECT(std::next(f.begin(), 1)->value() == "2");
+            BEAST_EXPECT(std::next(f.begin(), 2)->value() == "4");
+            BEAST_EXPECT(std::next(f.begin(), 3)->value() == "3");
+            BEAST_EXPECT(f.erase(field::body) == 2);
+            BEAST_EXPECT(std::next(f.begin(), 0)->name_string() == "Age");
+            BEAST_EXPECT(std::next(f.begin(), 1)->name_string() == "Close");
+        }
+        {
+            // group fields, case insensitive
+            fields f;
+            f.insert("a",  1);
+            f.insert("ab", 2);
+            f.insert("b",  3);
+            f.insert("AB", 4);
+            BEAST_EXPECT(std::next(f.begin(), 0)->name() == field::unknown);
+            BEAST_EXPECT(std::next(f.begin(), 1)->name() == field::unknown);
+            BEAST_EXPECT(std::next(f.begin(), 2)->name() == field::unknown);
+            BEAST_EXPECT(std::next(f.begin(), 3)->name() == field::unknown);
+            BEAST_EXPECT(std::next(f.begin(), 0)->name_string() == "a");
+            BEAST_EXPECT(std::next(f.begin(), 1)->name_string() == "ab");
+            BEAST_EXPECT(std::next(f.begin(), 2)->name_string() == "AB");
+            BEAST_EXPECT(std::next(f.begin(), 3)->name_string() == "b");
+            BEAST_EXPECT(std::next(f.begin(), 0)->value() == "1");
+            BEAST_EXPECT(std::next(f.begin(), 1)->value() == "2");
+            BEAST_EXPECT(std::next(f.begin(), 2)->value() == "4");
+            BEAST_EXPECT(std::next(f.begin(), 3)->value() == "3");
+            BEAST_EXPECT(f.erase("Ab") == 2);
+            BEAST_EXPECT(std::next(f.begin(), 0)->name_string() == "a");
+            BEAST_EXPECT(std::next(f.begin(), 1)->name_string() == "b");
+        }
+        {
+            // verify insertion orde
+            fields f;
+            f.insert( "a", 1);
+            f.insert("dd", 2);
+            f.insert("b",  3);
+            f.insert("dD", 4);
+            f.insert("c",  5);
+            f.insert("Dd", 6);
+            f.insert("DD", 7);
+            f.insert( "e", 8);
+            BEAST_EXPECT(f.count("dd") == 4);
+            BEAST_EXPECT(std::next(f.begin(), 1)->name_string() == "dd");
+            BEAST_EXPECT(std::next(f.begin(), 2)->name_string() == "dD");
+            BEAST_EXPECT(std::next(f.begin(), 3)->name_string() == "Dd");
+            BEAST_EXPECT(std::next(f.begin(), 4)->name_string() == "DD");
+            f.set("dd", "-");
+            BEAST_EXPECT(f.count("dd") == 1);
+            BEAST_EXPECT(f["dd"] == "-");
+        }
+
+        // equal_range
+        {
+            fields f;
+            f.insert("E", 1);
+            f.insert("B", 2);
+            f.insert("D", 3);
+            f.insert("B", 4);
+            f.insert("C", 5);
+            f.insert("B", 6);
+            f.insert("A", 7);
+            auto const rng = f.equal_range("B");
+            BEAST_EXPECT(std::distance(rng.first, rng.second) == 3);
+            BEAST_EXPECT(std::next(rng.first, 0)->value() == "2");
+            BEAST_EXPECT(std::next(rng.first, 1)->value() == "4");
+            BEAST_EXPECT(std::next(rng.first, 2)->value() == "6");
+        }
+    }
+
+    struct sized_body
+    {
+        using value_type = std::uint64_t;
+
+        static
+        std::uint64_t
+        size(value_type const& v)
+        {
+            return v;
+        }
+    };
+
+    struct unsized_body
+    {
+        struct value_type {};
+    };
+
+    void
+    testPreparePayload()
+    {
+        // GET, empty
+        {
+            request<empty_body> req;
+            req.version(11);
+            req.method(verb::get);
+
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req.count(field::transfer_encoding) == 0);
+
+            req.set(field::content_length, "0");
+            req.set(field::transfer_encoding, "chunked");
+            req.prepare_payload();
+
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req.count(field::transfer_encoding) == 0);
+
+            req.set(field::transfer_encoding, "deflate");
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate");
+
+            req.set(field::transfer_encoding, "deflate, chunked");
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate");
+        }
+
+        // GET, sized
+        {
+            request<sized_body> req;
+            req.version(11);
+            req.method(verb::get);
+            req.body() = 50;
+
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "50");
+            BEAST_EXPECT(req[field::transfer_encoding] == "");
+
+            req.set(field::content_length, "0");
+            req.set(field::transfer_encoding, "chunked");
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "50");
+            BEAST_EXPECT(req.count(field::transfer_encoding) == 0);
+
+            req.set(field::transfer_encoding, "deflate, chunked");
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "50");
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate");
+        }
+
+        // PUT, empty
+        {
+            request<empty_body> req;
+            req.version(11);
+            req.method(verb::put);
+
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "0");
+            BEAST_EXPECT(req.count(field::transfer_encoding) == 0);
+
+            req.set(field::content_length, "50");
+            req.set(field::transfer_encoding, "deflate, chunked");
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "0");
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate");
+        }
+
+        // PUT, sized
+        {
+            request<sized_body> req;
+            req.version(11);
+            req.method(verb::put);
+            req.body() = 50;
+
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "50");
+            BEAST_EXPECT(req.count(field::transfer_encoding) == 0);
+
+            req.set(field::content_length, "25");
+            req.set(field::transfer_encoding, "deflate, chunked");
+            req.prepare_payload();
+            BEAST_EXPECT(req[field::content_length] == "50");
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate");
+        }
+
+        // POST, unsized
+        {
+            request<unsized_body> req;
+            req.version(11);
+            req.method(verb::post);
+
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req[field::transfer_encoding] == "chunked");
+
+            req.set(field::transfer_encoding, "deflate");
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate, chunked");
+        }
+
+        // POST, unsized HTTP/1.0
+        {
+            request<unsized_body> req;
+            req.version(10);
+            req.method(verb::post);
+
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req.count(field::transfer_encoding) == 0);
+
+            req.set(field::transfer_encoding, "deflate");
+            req.prepare_payload();
+            BEAST_EXPECT(req.count(field::content_length) == 0);
+            BEAST_EXPECT(req[field::transfer_encoding] == "deflate");
+        }
+
+        // OK, empty
+        {
+            response<empty_body> res;
+            res.version(11);
+
+            res.prepare_payload();
+            BEAST_EXPECT(res[field::content_length] == "0");
+            BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+            res.erase(field::content_length);
+            res.set(field::transfer_encoding, "chunked");
+            res.prepare_payload();
+            BEAST_EXPECT(res[field::content_length] == "0");
+            BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+        }
+
+        // OK, sized
+        {
+            response<sized_body> res;
+            res.version(11);
+            res.body() = 50;
+
+            res.prepare_payload();
+            BEAST_EXPECT(res[field::content_length] == "50");
+            BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+            res.erase(field::content_length);
+            res.set(field::transfer_encoding, "chunked");
+            res.prepare_payload();
+            BEAST_EXPECT(res[field::content_length] == "50");
+            BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+        }
+
+        // OK, unsized
+        {
+            response<unsized_body> res;
+            res.version(11);
+
+            res.prepare_payload();
+            BEAST_EXPECT(res.count(field::content_length) == 0);
+            BEAST_EXPECT(res[field::transfer_encoding] == "chunked");
+        }
+    }
+
+    void
+    testKeepAlive()
+    {
+        response<empty_body> res;
+        auto const keep_alive =
+            [&](bool v)
+            {
+                res.keep_alive(v);
+                BEAST_EXPECT(
+                    (res.keep_alive() && v) ||
+                    (! res.keep_alive() && ! v));
+            };
+
+        std::string const big(max_static_buffer + 1, 'a');
+
+        // HTTP/1.0
+        res.version(10);
+        res.erase(field::connection);
+
+        keep_alive(false);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.set(field::connection, "close");
+        keep_alive(false);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.set(field::connection, "keep-alive");
+        keep_alive(false);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.set(field::connection, "keep-alive, close");
+        keep_alive(false);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.erase(field::connection);
+        keep_alive(true);
+        BEAST_EXPECT(res[field::connection] == "keep-alive");
+
+        res.set(field::connection, "close");
+        keep_alive(true);
+        BEAST_EXPECT(res[field::connection] == "keep-alive");
+
+        res.set(field::connection, "keep-alive");
+        keep_alive(true);
+        BEAST_EXPECT(res[field::connection] == "keep-alive");
+
+        res.set(field::connection, "keep-alive, close");
+        keep_alive(true);
+        BEAST_EXPECT(res[field::connection] == "keep-alive");
+
+        auto const test10 =
+            [&](std::string s)
+        {
+            res.set(field::connection, s);
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, s + ", close");
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, "keep-alive, " + s);
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, "keep-alive, " + s + ", close");
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, s);
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == s + ", keep-alive");
+
+            res.set(field::connection, s + ", close");
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == s + ", keep-alive");
+
+            res.set(field::connection, "keep-alive, " + s);
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == "keep-alive, " + s);
+
+            res.set(field::connection, "keep-alive, " + s+ ", close");
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == "keep-alive, " + s);
+        };
+
+        test10("foo");
+        test10(big);
+
+        // HTTP/1.1
+        res.version(11);
+
+        res.erase(field::connection);
+        keep_alive(true);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.set(field::connection, "close");
+        keep_alive(true);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.set(field::connection, "keep-alive");
+        keep_alive(true);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.set(field::connection, "keep-alive, close");
+        keep_alive(true);
+        BEAST_EXPECT(res.count(field::connection) == 0);
+
+        res.erase(field::connection);
+        keep_alive(false);
+        BEAST_EXPECT(res[field::connection] == "close");
+
+        res.set(field::connection, "close");
+        keep_alive(false);
+        BEAST_EXPECT(res[field::connection] == "close");
+
+        res.set(field::connection, "keep-alive");
+        keep_alive(false);
+        BEAST_EXPECT(res[field::connection] == "close");
+
+        res.set(field::connection, "keep-alive, close");
+        keep_alive(false);
+        BEAST_EXPECT(res[field::connection] == "close");
+
+        auto const test11 =
+            [&](std::string s)
+        {
+            res.set(field::connection, s);
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, s + ", close");
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, "keep-alive, " + s);
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, "keep-alive, " + s + ", close");
+            keep_alive(true);
+            BEAST_EXPECT(res[field::connection] == s);
+
+            res.set(field::connection, s);
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == s + ", close");
+
+            res.set(field::connection, "close, " + s);
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == "close, " + s);
+
+            res.set(field::connection, "keep-alive, " + s);
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == s + ", close");
+
+            res.set(field::connection, "close, " + s + ", keep-alive");
+            keep_alive(false);
+            BEAST_EXPECT(res[field::connection] == "close, " + s);
+        };
+
+        test11("foo");
+        test11(big);
+    }
+
+    void
+    testContentLength()
+    {
+        response<empty_body> res{status::ok, 11};
+        BEAST_EXPECT(res.count(field::content_length) == 0);
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+        res.content_length(0);
+        BEAST_EXPECT(res[field::content_length] == "0");
+
+        res.content_length(100);
+        BEAST_EXPECT(res[field::content_length] == "100");
+
+        res.content_length(boost::none);
+        BEAST_EXPECT(res.count(field::content_length) == 0);
+
+        res.set(field::transfer_encoding, "chunked");
+        res.content_length(0);
+        BEAST_EXPECT(res[field::content_length] == "0");
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+        res.set(field::transfer_encoding, "chunked");
+        res.content_length(100);
+        BEAST_EXPECT(res[field::content_length] == "100");
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+        res.set(field::transfer_encoding, "chunked");
+        res.content_length(boost::none);
+        BEAST_EXPECT(res.count(field::content_length) == 0);
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+        auto const check = [&](std::string s)
+        {
+            res.set(field::transfer_encoding, s);
+            res.content_length(0);
+            BEAST_EXPECT(res[field::content_length] == "0");
+            BEAST_EXPECT(res[field::transfer_encoding] == s);
+
+            res.set(field::transfer_encoding, s);
+            res.content_length(100);
+            BEAST_EXPECT(res[field::content_length] == "100");
+            BEAST_EXPECT(res[field::transfer_encoding] == s);
+
+            res.set(field::transfer_encoding, s);
+            res.content_length(boost::none);
+            BEAST_EXPECT(res.count(field::content_length) == 0);
+            BEAST_EXPECT(res[field::transfer_encoding] == s);
+
+            res.set(field::transfer_encoding, s + ", chunked");
+            res.content_length(0);
+            BEAST_EXPECT(res[field::content_length] == "0");
+            BEAST_EXPECT(res[field::transfer_encoding] == s);
+
+            res.set(field::transfer_encoding, s + ", chunked");
+            res.content_length(100);
+            BEAST_EXPECT(res[field::content_length] == "100");
+            BEAST_EXPECT(res[field::transfer_encoding] == s);
+
+            res.set(field::transfer_encoding, s + ", chunked");
+            res.content_length(boost::none);
+            BEAST_EXPECT(res.count(field::content_length) == 0);
+            BEAST_EXPECT(res[field::transfer_encoding] == s);
+
+            res.set(field::transfer_encoding, "chunked, " + s);
+            res.content_length(0);
+            BEAST_EXPECT(res[field::content_length] == "0");
+            BEAST_EXPECT(res[field::transfer_encoding] == "chunked, " + s);
+
+            res.set(field::transfer_encoding, "chunked, " + s);
+            res.content_length(100);
+            BEAST_EXPECT(res[field::content_length] == "100");
+            BEAST_EXPECT(res[field::transfer_encoding] == "chunked, " + s);
+
+            res.set(field::transfer_encoding, "chunked, " + s);
+            res.content_length(boost::none);
+            BEAST_EXPECT(res.count(field::content_length) == 0);
+            BEAST_EXPECT(res[field::transfer_encoding] == "chunked, " + s);
+        };
+
+        check("foo");
+
+        std::string const big(max_static_buffer + 1, 'a');
+
+        check(big);
+    }
+
+    void
+    testChunked()
+    {
+        response<empty_body> res{status::ok, 11};
+        BEAST_EXPECT(res.count(field::content_length) == 0);
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+        auto const chunked =
+            [&](bool v)
+            {
+                res.chunked(v);
+                BEAST_EXPECT(
+                    (res.chunked() && v) ||
+                    (! res.chunked() && ! v));
+                BEAST_EXPECT(res.count(
+                    field::content_length) == 0);
+            };
+
+        res.erase(field::transfer_encoding);
+        res.set(field::content_length, 32);
+        chunked(true);
+        BEAST_EXPECT(res[field::transfer_encoding] == "chunked");
+
+        res.set(field::transfer_encoding, "chunked");
+        chunked(true);
+        BEAST_EXPECT(res[field::transfer_encoding] == "chunked");
+
+        res.erase(field::transfer_encoding);
+        res.set(field::content_length, 32);
+        chunked(false);
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+        res.set(field::transfer_encoding, "chunked");
+        chunked(false);
+        BEAST_EXPECT(res.count(field::transfer_encoding) == 0);
+
+
+
+        res.set(field::transfer_encoding, "foo");
+        chunked(true);
+        BEAST_EXPECT(res[field::transfer_encoding] == "foo, chunked");
+
+        res.set(field::transfer_encoding, "chunked, foo");
+        chunked(true);
+        BEAST_EXPECT(res[field::transfer_encoding] == "chunked, foo, chunked");
+
+        res.set(field::transfer_encoding, "chunked, foo, chunked");
+        chunked(true);
+        BEAST_EXPECT(res[field::transfer_encoding] == "chunked, foo, chunked");
+
+        res.set(field::transfer_encoding, "foo, chunked");
+        chunked(false);
+        BEAST_EXPECT(res[field::transfer_encoding] == "foo");
+
+        res.set(field::transfer_encoding, "chunked, foo");
+        chunked(false);
+        BEAST_EXPECT(res[field::transfer_encoding] == "chunked, foo");
+
+        res.set(field::transfer_encoding, "chunked, foo, chunked");
+        chunked(false);
+        BEAST_EXPECT(res[field::transfer_encoding] == "chunked, foo");
+    }
+
+    void
+    testIssue1828()
+    {
+        beast::http::fields req;
+        req.insert("abc", "1");
+        req.insert("abc", "2");
+        req.insert("abc", "3");
+        BEAST_EXPECT(req.count("abc") == 3);
+        auto iter = req.find("abc");
+        BEAST_EXPECT(iter->value() == "1");
+        req.insert("abc", "4");
+        req.erase(iter);
+        BEAST_EXPECT(req.count("abc") == 3);
+    }
+
+    void
+    run() override
+    {
+        testMembers();
+        testHeaders();
+        testRFC2616();
+        testErase();
+        testIteratorErase();
+        testContainer();
+        testPreparePayload();
+
+        testKeepAlive();
+        testContentLength();
+        testChunked();
+
+        testIssue1828();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,fields);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/file_body.cpp b/src/boost/libs/beast/test/beast/http/file_body.cpp
new file mode 100644
index 000000000..96873b3a6
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/file_body.cpp
@@ -0,0 +1,220 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/file_body.hpp>
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_prefix.hpp>
+#include <boost/beast/core/file_stdio.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/http/parser.hpp>
+#include <boost/beast/http/serializer.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/asio/error.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class file_body_test : public beast::unit_test::suite
+{
+public:
+    struct lambda
+    {
+        flat_buffer buffer;
+
+        template<class ConstBufferSequence>
+        void
+        operator()(error_code&, ConstBufferSequence const& buffers)
+        {
+            buffer.commit(net::buffer_copy(
+                buffer.prepare(buffer_bytes(buffers)),
+                buffers));
+        }
+    };
+
+    struct temp_file
+    {
+        temp_file(std::ostream& logger)
+        : path_(boost::filesystem::unique_path())
+        , log_(logger)
+        {}
+
+        ~temp_file()
+        {
+            if (!path_.empty())
+            {
+                auto ec = error_code();
+                boost::filesystem::remove(path_, ec);
+                if (ec)
+                {
+                    log_ << "warning: failed to remove temporary file: " << path_ << "\n";
+                }
+            }
+
+        }
+
+        temp_file(temp_file&&) = default;
+        temp_file(temp_file const&) = delete;
+        temp_file& operator=(temp_file&&) = delete;
+        temp_file& operator=(temp_file const&) = delete;
+
+        boost::filesystem::path const& path() const
+        {
+            return path_;
+        }
+
+    private:
+
+        boost::filesystem::path path_;
+        std::ostream& log_;
+    };
+
+    template<class File>
+    void
+    doTestFileBody()
+    {
+        error_code ec;
+        string_view const s =
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Content-Length: 3\r\n"
+            "\r\n"
+            "xyz";
+        auto const temp = boost::filesystem::unique_path();
+        {
+            response_parser<basic_file_body<File>> p;
+            p.eager(true);
+
+            p.get().body().open(
+                temp.string<std::string>().c_str(), file_mode::write, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+
+            p.put(net::buffer(s.data(), s.size()), ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+        {
+            File f;
+            f.open(temp.string<std::string>().c_str(), file_mode::read, ec);
+            auto size = f.size(ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(size == 3);
+            std::string s1;
+            s1.resize(3);
+            f.read(&s1[0], s1.size(), ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECTS(s1 == "xyz", s);
+        }
+        {
+            lambda visit;
+            {
+                response<basic_file_body<File>> res{status::ok, 11};
+                res.set(field::server, "test");
+                res.body().open(temp.string<std::string>().c_str(),
+                    file_mode::scan, ec);
+                BEAST_EXPECTS(! ec, ec.message());
+                res.prepare_payload();
+
+                serializer<false, basic_file_body<File>, fields> sr{res};
+                sr.next(ec, visit);
+                BEAST_EXPECTS(! ec, ec.message());
+                auto const b = buffers_front(visit.buffer.data());
+                string_view const s1{
+                    reinterpret_cast<char const*>(b.data()),
+                    b.size()};
+                BEAST_EXPECTS(s1 == s, s1);
+            }
+        }
+        boost::filesystem::remove(temp, ec);
+        BEAST_EXPECTS(! ec, ec.message());
+    }
+
+    template<class File>
+    void
+    fileBodyUnexpectedEofOnGet()
+    {
+        auto temp = temp_file(log);
+
+        error_code ec;
+        string_view const ten =
+            "0123456789"; // 40
+        // create the temporary file
+        {
+            std::ofstream fstemp(temp.path().native());
+            std::size_t written = 0;
+            std::size_t to_write = 4097;
+            while (written < to_write)
+            {
+                auto size = std::min(ten.size(), to_write - written);
+                fstemp << ten.substr(0, size);
+                BEAST_EXPECT(fstemp.good());
+                written += size;
+            }
+            fstemp.close();
+        }
+
+        // open the file and read the header
+        {
+            using file_body_type = basic_file_body<File>;
+
+            typename file_body_type::value_type value;
+            // opened in write mode so we can truncate later
+            value.open(temp.path().string<std::string>().c_str(), file_mode::read, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+
+            response_header<> header;
+            header.version(11);
+            header.result(status::accepted);
+            header.set(field::server, "test");
+            header.set(field::content_length, 4097);
+
+            typename file_body_type::writer w(header, value);
+            auto maybe_range = w.get(ec);
+            BEAST_EXPECTS(!ec, ec.message());
+            BEAST_EXPECTS(maybe_range.has_value(), "no range returned");
+            BEAST_EXPECT(maybe_range.value().second);
+
+            value.file().seek(4097, ec);
+            BEAST_EXPECTS(!ec, ec.message());
+
+            maybe_range = w.get(ec);
+            BEAST_EXPECTS(ec == error::short_read, ec.message());
+            BEAST_EXPECTS(!maybe_range.has_value(), "range returned on error");
+        }
+    }
+
+    void
+    run() override
+    {
+        doTestFileBody<file_stdio>();
+#if BOOST_BEAST_USE_WIN32_FILE
+        doTestFileBody<file_win32>();
+#endif
+#if BOOST_BEAST_USE_POSIX_FILE
+        doTestFileBody<file_posix>();
+#endif
+
+        fileBodyUnexpectedEofOnGet<file_stdio>();
+    #if BOOST_BEAST_USE_POSIX_FILE
+        fileBodyUnexpectedEofOnGet<file_posix>();
+    #endif
+    #if BOOST_BEAST_USE_WIN32_FILE
+        fileBodyUnexpectedEofOnGet<file_win32>();
+    #endif
+
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,file_body);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/message.cpp b/src/boost/libs/beast/test/beast/http/message.cpp
new file mode 100644
index 000000000..b1062814a
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/message.cpp
@@ -0,0 +1,521 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/message.hpp>
+
+#include <boost/beast/http/empty_body.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/http/fields.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <type_traits>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class message_test : public beast::unit_test::suite
+{
+public:
+    struct Arg1
+    {
+        bool moved = false;
+
+        Arg1(Arg1 const&) = default;
+
+        Arg1()
+        {
+        }
+
+        Arg1(Arg1&& other)
+        {
+            other.moved = true;
+        }
+    };
+
+    struct Arg2 { };
+    struct Arg3 { };
+
+    // default constructible Body
+    struct default_body
+    {
+        using value_type = std::string;
+    };
+
+    // 1-arg constructible Body
+    struct one_arg_body
+    {
+        struct value_type
+        {
+            explicit
+            value_type(Arg1 const&)
+            {
+            }
+
+            explicit
+            value_type(Arg1&& arg)
+            {
+                Arg1 arg_(std::move(arg));
+            }
+        };
+    };
+
+    // 2-arg constructible Body
+    struct two_arg_body
+    {
+        struct value_type
+        {
+            value_type(Arg1 const&, Arg2 const&)
+            {
+            }
+        };
+    };
+
+    // 0-arg
+    BOOST_STATIC_ASSERT(std::is_constructible<
+        request<default_body>>::value);
+
+    // 1-arg
+    BOOST_STATIC_ASSERT(! std::is_constructible<request<one_arg_body>
+        >::value);
+
+    //BOOST_STATIC_ASSERT(! std::is_constructible<request<one_arg_body>,
+    //    verb, string_view, unsigned>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<one_arg_body>,
+        verb, string_view, unsigned, Arg1>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<one_arg_body>,
+        verb, string_view, unsigned, Arg1&&>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<one_arg_body>,
+        verb, string_view, unsigned, Arg1 const>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<one_arg_body>,
+        verb, string_view, unsigned, Arg1 const&>::value);
+
+    // 1-arg + fields
+    BOOST_STATIC_ASSERT(std::is_constructible<request<one_arg_body>,
+        verb, string_view, unsigned, Arg1, fields::allocator_type>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<one_arg_body>, std::piecewise_construct_t,
+            std::tuple<Arg1>>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<two_arg_body>, std::piecewise_construct_t,
+            std::tuple<Arg1, Arg2>>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<request<two_arg_body>, std::piecewise_construct_t,
+            std::tuple<Arg1, Arg2>, std::tuple<fields::allocator_type>>::value);
+
+    // special members
+    BOOST_STATIC_ASSERT(std::is_copy_constructible<header<true>>::value);
+    BOOST_STATIC_ASSERT(std::is_move_constructible<header<true>>::value);
+    BOOST_STATIC_ASSERT(std::is_copy_assignable<header<true>>::value);
+    BOOST_STATIC_ASSERT(std::is_move_assignable<header<true>>::value);
+    BOOST_STATIC_ASSERT(std::is_copy_constructible<header<false>>::value);
+    BOOST_STATIC_ASSERT(std::is_move_constructible<header<false>>::value);
+    BOOST_STATIC_ASSERT(std::is_copy_assignable<header<false>>::value);
+    BOOST_STATIC_ASSERT(std::is_move_assignable<header<false>>::value);
+
+    void
+    testMessage()
+    {
+        {
+            Arg1 arg1;
+            request<one_arg_body>{verb::get, "/", 11, std::move(arg1)};
+            BEAST_EXPECT(arg1.moved);
+        }
+
+        {
+            header<true> h;
+            h.set(field::user_agent, "test");
+            BEAST_EXPECT(h[field::user_agent] == "test");
+            request<default_body> m{std::move(h)};
+            BEAST_EXPECT(m[field::user_agent] == "test");
+            BEAST_EXPECT(h.count(field::user_agent) == 0);
+        }
+        {
+            request<empty_body> h{verb::get, "/", 10};
+            h.set(field::user_agent, "test");
+            request<one_arg_body> m{std::move(h.base()), Arg1{}};
+            BEAST_EXPECT(m["User-Agent"] == "test");
+            BEAST_EXPECT(h.count(http::field::user_agent) == 0);
+            BEAST_EXPECT(m.method() == verb::get);
+            BEAST_EXPECT(m.target() == "/");
+            BEAST_EXPECT(m.version() == 10);
+        }
+
+        // swap
+        request<string_body> m1;
+        request<string_body> m2;
+        m1.target("u");
+        m1.body() = "1";
+        m1.insert("h", "v");
+        m2.method_string("G");
+        m2.body() = "2";
+        swap(m1, m2);
+        BEAST_EXPECT(m1.method_string() == "G");
+        BEAST_EXPECT(m2.method_string().empty());
+        BEAST_EXPECT(m1.target().empty());
+        BEAST_EXPECT(m2.target() == "u");
+        BEAST_EXPECT(m1.body() == "2");
+        BEAST_EXPECT(m2.body() == "1");
+        BEAST_EXPECT(! m1.count("h"));
+        BEAST_EXPECT(m2.count("h"));
+    }
+
+    struct MoveFields : fields
+    {
+        bool moved_to = false;
+        bool moved_from = false;
+
+        MoveFields() = default;
+
+        MoveFields(MoveFields&& other)
+            : moved_to(true)
+        {
+            other.moved_from = true;
+        }
+
+        MoveFields& operator=(MoveFields&&)
+        {
+            return *this;
+        }
+    };
+
+    struct token {};
+
+    struct test_fields
+    {
+        std::string target;
+
+        test_fields() = delete;
+        test_fields(token) {}
+        string_view get_method_impl() const { return {}; }
+        string_view get_target_impl() const { return target; }
+        string_view get_reason_impl() const { return {}; }
+        bool get_chunked_impl() const { return false; }
+        bool get_keep_alive_impl(unsigned) const { return true; }
+        bool has_content_length_impl() const { return false; }
+        void set_method_impl(string_view) {}
+        void set_target_impl(string_view s) { target = std::string(s); }
+        void set_reason_impl(string_view) {}
+        void set_chunked_impl(bool) {}
+        void set_content_length_impl(boost::optional<std::uint64_t>) {}
+        void set_keep_alive_impl(unsigned, bool) {}
+    };
+
+    void
+    testMessageCtors()
+    {
+        {
+            request<empty_body> req;
+            BEAST_EXPECT(req.version() == 11);
+            BEAST_EXPECT(req.method() == verb::unknown);
+            BEAST_EXPECT(req.target() == "");
+        }
+        {
+            request<empty_body> req{verb::get, "/", 11};
+            BEAST_EXPECT(req.version() == 11);
+            BEAST_EXPECT(req.method() == verb::get);
+            BEAST_EXPECT(req.target() == "/");
+        }
+        {
+            request<string_body> req{verb::get, "/", 11, "Hello"};
+            BEAST_EXPECT(req.version() == 11);
+            BEAST_EXPECT(req.method() == verb::get);
+            BEAST_EXPECT(req.target() == "/");
+            BEAST_EXPECT(req.body() == "Hello");
+        }
+        {
+            request<string_body, test_fields> req{
+                verb::get, "/", 11, "Hello", token{}};
+            BEAST_EXPECT(req.version() == 11);
+            BEAST_EXPECT(req.method() == verb::get);
+            BEAST_EXPECT(req.target() == "/");
+            BEAST_EXPECT(req.body() == "Hello");
+            BEAST_EXPECT(! req.has_content_length());
+        }
+        {
+            response<string_body> res;
+            BEAST_EXPECT(res.version() == 11);
+            BEAST_EXPECT(res.result() == status::ok);
+            BEAST_EXPECT(res.reason() == "OK");
+        }
+        {
+            response<string_body> res{status::bad_request, 10};
+            BEAST_EXPECT(res.version() == 10);
+            BEAST_EXPECT(res.result() == status::bad_request);
+            BEAST_EXPECT(res.reason() == "Bad Request");
+        }
+        {
+            response<string_body> res{status::bad_request, 10, "Hello"};
+            BEAST_EXPECT(res.version() == 10);
+            BEAST_EXPECT(res.result() == status::bad_request);
+            BEAST_EXPECT(res.reason() == "Bad Request");
+            BEAST_EXPECT(res.body() == "Hello");
+        }
+        {
+            response<string_body, test_fields> res{
+                status::bad_request, 10, "Hello", token{}};
+            BEAST_EXPECT(res.version() == 10);
+            BEAST_EXPECT(res.result() == status::bad_request);
+            BEAST_EXPECT(res.reason() == "Bad Request");
+            BEAST_EXPECT(res.body() == "Hello");
+            BEAST_EXPECT(! res.has_content_length());
+        }
+    }
+
+    void
+    testBody()
+    {
+        {
+            auto f = [](empty_body::value_type&){};
+            request<empty_body> m;
+            f(m.body());
+        }
+        {
+            auto f = [](empty_body::value_type const&){};
+            request<empty_body> const m{};
+            f(m.body());
+            f(std::move(m.body()));
+        }
+        {
+            auto f = [](empty_body::value_type&&){};
+            request<empty_body> m;
+            f(std::move(m).body());
+            f(std::move(m.body()));
+        }
+        {
+            auto f = [](empty_body::value_type const&&){};
+            request<empty_body> const m{};
+            f(std::move(m.body()));
+        }
+    }
+
+    void
+    testSwap()
+    {
+        response<string_body> m1;
+        response<string_body> m2;
+        m1.result(status::ok);
+        m1.version(10);
+        m1.body() = "1";
+        m1.insert("h", "v");
+        m2.result(status::not_found);
+        m2.body() = "2";
+        m2.version(11);
+        swap(m1, m2);
+        BEAST_EXPECT(m1.result() == status::not_found);
+        BEAST_EXPECT(m1.result_int() == 404);
+        BEAST_EXPECT(m2.result() == status::ok);
+        BEAST_EXPECT(m2.result_int() == 200);
+        BEAST_EXPECT(m1.reason() == "Not Found");
+        BEAST_EXPECT(m2.reason() == "OK");
+        BEAST_EXPECT(m1.version() == 11);
+        BEAST_EXPECT(m2.version() == 10);
+        BEAST_EXPECT(m1.body() == "2");
+        BEAST_EXPECT(m2.body() == "1");
+        BEAST_EXPECT(! m1.count("h"));
+        BEAST_EXPECT(m2.count("h"));
+    }
+
+    void
+    testSpecialMembers()
+    {
+        response<string_body> r1;
+        response<string_body> r2{r1};
+        response<string_body> r3{std::move(r2)};
+        r2 = r3;
+        r1 = std::move(r2);
+        [r1]()
+        {
+        }();
+    }
+
+    void
+    testMethod()
+    {
+        header<true> h;
+        auto const vcheck =
+            [&](verb v)
+            {
+                h.method(v);
+                BEAST_EXPECT(h.method() == v);
+                BEAST_EXPECT(h.method_string() == to_string(v));
+            };
+        auto const scheck =
+            [&](string_view s)
+            {
+                h.method_string(s);
+                BEAST_EXPECT(h.method() == string_to_verb(s));
+                BEAST_EXPECT(h.method_string() == s);
+            };
+        vcheck(verb::get);
+        vcheck(verb::head);
+        scheck("GET");
+        scheck("HEAD");
+        scheck("XYZ");
+    }
+
+    void
+    testStatus()
+    {
+        header<false> h;
+        h.result(200);
+        BEAST_EXPECT(h.result_int() == 200);
+        BEAST_EXPECT(h.result() == status::ok);
+        h.result(status::switching_protocols);
+        BEAST_EXPECT(h.result_int() == 101);
+        BEAST_EXPECT(h.result() == status::switching_protocols);
+        h.result(1);
+        BEAST_EXPECT(h.result_int() == 1);
+        BEAST_EXPECT(h.result() == status::unknown);
+    }
+
+    void
+    testReason()
+    {
+        header<false> h;
+        h.result(status::ok);
+        BEAST_EXPECT(h.reason() == "OK");
+        h.reason("Pepe");
+        BEAST_EXPECT(h.reason() == "Pepe");
+        h.result(status::not_found);
+        BEAST_EXPECT(h.reason() == "Pepe");
+        h.reason({});
+        BEAST_EXPECT(h.reason() == "Not Found");
+    }
+
+    void
+    testNeedEof()
+    {
+        {
+            request<empty_body> m;
+            
+            m.version(10);
+            m.keep_alive(false);
+            BEAST_EXPECT(m.need_eof());
+            m.keep_alive(true);
+            BEAST_EXPECT(! m.need_eof());
+
+            m.version(11);
+            m.keep_alive(false);
+            BEAST_EXPECT(m.need_eof());
+            m.keep_alive(true);
+            BEAST_EXPECT(! m.need_eof());
+        }
+
+        {
+            response<empty_body> m;
+            m.result(status::ok);
+
+            m.version(10);
+            m.keep_alive(false);
+            BEAST_EXPECT(! m.has_content_length());
+            BEAST_EXPECT(! m.chunked());
+            m.result(status::no_content);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::not_modified);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::continue_);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::switching_protocols);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::ok);
+            BEAST_EXPECT(m.need_eof());
+
+            m.version(10);
+            m.keep_alive(true);
+            BEAST_EXPECT(! m.has_content_length());
+            BEAST_EXPECT(! m.chunked());
+            m.result(status::no_content);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::not_modified);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::continue_);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::switching_protocols);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::ok);
+            BEAST_EXPECT(m.need_eof());
+            m.set(field::content_length, "1");
+            BEAST_EXPECT(! m.need_eof());
+        }
+
+        {
+            response<empty_body> m;
+            m.result(status::ok);
+
+            m.version(11);
+            m.keep_alive(false);
+            BEAST_EXPECT(! m.has_content_length());
+            BEAST_EXPECT(! m.chunked());
+            m.result(status::no_content);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::not_modified);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::continue_);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::switching_protocols);
+            BEAST_EXPECT(m.need_eof());
+            m.result(status::ok);
+            BEAST_EXPECT(m.need_eof());
+            m.chunked(true);
+            BEAST_EXPECT(m.need_eof());
+            m.content_length(1);
+            BEAST_EXPECT(m.need_eof());
+        }
+
+        {
+            response<empty_body> m;
+            m.result(status::ok);
+
+            m.version(11);
+            m.keep_alive(true);
+            BEAST_EXPECT(! m.has_content_length());
+            BEAST_EXPECT(! m.chunked());
+            m.result(status::no_content);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::not_modified);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::continue_);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::switching_protocols);
+            BEAST_EXPECT(! m.need_eof());
+            m.result(status::ok);
+            BEAST_EXPECT(m.need_eof());
+            m.chunked(true);
+            BEAST_EXPECT(! m.need_eof());
+            m.content_length(1);
+            BEAST_EXPECT(! m.need_eof());
+        }
+    }
+
+    void
+    run() override
+    {
+        testMessage();
+        testMessageCtors();
+        testBody();
+        testSwap();
+        testSpecialMembers();
+        testMethod();
+        testStatus();
+        testReason();
+        testNeedEof();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,message);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/message_fuzz.hpp b/src/boost/libs/beast/test/beast/http/message_fuzz.hpp
new file mode 100644
index 000000000..521f48064
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/message_fuzz.hpp
@@ -0,0 +1,614 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_HTTP_TEST_MESSAGE_FUZZ_HPP
+#define BOOST_BEAST_HTTP_TEST_MESSAGE_FUZZ_HPP
+
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/http/detail/rfc7230.hpp>
+#include <cstdint>
+#include <random>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+template<class = void>
+std::string
+escaped_string(string_view s)
+{
+    std::string out;
+    out.reserve(s.size());
+    for(char c : s)
+    {
+        if(c == '\r')
+            out.append("\\r");
+        else if(c == '\n')
+            out.append("\\n");
+        else if(c == '\t')
+            out.append("\\t");
+        else
+            out.append(&c, 1);
+    }
+    return out;
+}
+
+// Produces random HTTP messages
+//
+template<class = void>
+class message_fuzz_t
+{
+    std::mt19937 rng_;
+
+    static
+    std::string
+    to_hex(std::size_t v)
+    {
+        if(! v)
+            return "0";
+        std::string s;
+        while(v > 0)
+        {
+            s.insert(s.begin(),
+                "0123456789abcdef"[v&0xf]);
+            v >>= 4;
+        }
+        return s;
+    }
+
+public:
+    template<class UInt = std::size_t>
+    UInt
+    rand(std::size_t n)
+    {
+        return static_cast<UInt>(
+            std::uniform_int_distribution<
+                std::size_t>{0, n-1}(rng_));
+    }
+
+    std::string
+    method()
+    {
+#if 0
+        // All IANA registered methods
+        static char const* const list[39] = {
+            "ACL", "BASELINE-CONTROL", "BIND", "CHECKIN", "CHECKOUT", "CONNECT",
+            "COPY", "DELETE", "GET", "HEAD", "LABEL", "LINK", "LOCK", "MERGE",
+            "MKACTIVITY", "MKCALENDAR", "MKCOL", "MKREDIRECTREF", "MKWORKSPACE",
+            "MOVE", "OPTIONS", "ORDERPATCH", "PATCH", "POST", "PRI", "PROPFIND",
+            "PROPPATCH", "PUT", "REBIND", "REPORT", "SEARCH", "TRACE", "UNBIND",
+            "UNCHECKOUT", "UNLINK", "UNLOCK", "UPDATE", "UPDATEREDIRECTREF",
+            "VERSION-CONTROL"
+        };
+        return list[rand(39)];
+#else
+        // methods parsed by nodejs-http-parser
+        static char const* const list[33] = {
+            "ACL", "BIND", "CHECKOUT", "CONNECT", "COPY", "DELETE", "HEAD", "GET",
+            "LINK", "LOCK", "MERGE", "MKCOL", "MKCALENDAR", "MKACTIVITY", "M-SEARCH",
+            "MOVE", "NOTIFY", "OPTIONS", "PATCH", "POST", "PROPFIND", "PROPPATCH",
+            "PURGE", "PUT", "REBIND", "REPORT", "SEARCH", "SUBSCRIBE", "TRACE",
+            "UNBIND", "UNLINK", "UNLOCK", "UNSUBSCRIBE"
+        };
+        return list[rand(33)];
+#endif
+    }
+
+    std::string
+    scheme()
+    {
+        static char const* const list[241] = {
+            "aaa", "aaas", "about", "acap", "acct", "acr", "adiumxtra", "afp", "afs",
+            "aim", "appdata", "apt", "attachment", "aw", "barion", "beshare", "bitcoin",
+            "blob", "bolo", "callto", "cap", "chrome", "chrome-extension", "cid",
+            "coap", "coaps", "com-eventbrite-attendee", "content", "crid", "cvs",
+            "data", "dav", "dict", "dis", "dlna-playcontainer", "dlna-playsingle",
+            "dns", "dntp", "dtn", "dvb", "ed2k", "example", "facetime", "fax", "feed",
+            "feedready", "file", "filesystem", "finger", "fish", "ftp", "geo", "gg",
+            "git", "gizmoproject", "go", "gopher", "gtalk", "h323", "ham", "hcp",
+            "http", "https", "iax", "icap", "icon", "im", "imap", "info", "iotdisco",
+            "ipn", "ipp", "ipps", "irc", "irc6", "ircs", "iris", "iris.beep",
+            "iris.lwz", "iris.xpc", "iris.xpcs", "isostore", "itms", "jabber", "jar",
+            "jms", "keyparc", "lastfm", "ldap", "ldaps", "magnet", "mailserver",
+            "mailto", "maps", "market", "message", "mid", "mms",
+            "modem", "ms-access", "ms-drive-to", "ms-enrollment", "ms-excel",
+            "ms-getoffice", "ms-help", "ms-infopath", "ms-media-stream-id", "ms-project",
+            "ms-powerpoint", "ms-publisher", "ms-search-repair",
+            "ms-secondary-screen-controller", "ms-secondary-screen-setup",
+            "ms-settings", "ms-settings-airplanemode", "ms-settings-bluetooth",
+            "ms-settings-camera", "ms-settings-cellular", "ms-settings-cloudstorage",
+            "ms-settings-emailandaccounts", "ms-settings-language", "ms-settings-location",
+            "ms-settings-lock", "ms-settings-nfctransactions", "ms-settings-notifications",
+            "ms-settings-power", "ms-settings-privacy", "ms-settings-proximity",
+            "ms-settings-screenrotation", "ms-settings-wifi", "ms-settings-workplace",
+            "ms-spd", "ms-transit-to", "ms-visio", "ms-walk-to", "ms-word", "msnim",
+            "msrp", "msrps", "mtqp", "mumble", "mupdate", "mvn", "news", "nfs", "ni",
+            "nih", "nntp", "notes", "oid", "opaquelocktoken", "pack", "palm", "paparazzi",
+            "pkcs11", "platform", "pop", "pres", "prospero", "proxy", "psyc", "query",
+            "redis", "rediss", "reload", "res", "target", "rmi", "rsync", "rtmfp",
+            "rtmp", "rtsp", "rtsps", "rtspu", "secondlife", "service", "session", "sftp",
+            "sgn", "shttp", "sieve", "sip", "sips", "skype", "smb", "sms", "smtp",
+            "snews", "snmp", "soap.beep", "soap.beeps", "soldat", "spotify", "ssh",
+            "steam", "stun", "stuns", "submit", "svn", "tag", "teamspeak", "tel",
+            "teliaeid", "telnet", "tftp", "things", "thismessage", "tip", "tn3270",
+            "tool", "turn", "turns", "tv", "udp", "unreal", "urn", "ut2004", "v-event",
+            "vemmi", "ventrilo", "videotex", "vnc", "view-source", "wais", "webcal",
+            "wpid", "ws", "wss", "wtai", "wyciwyg", "xcon", "xcon-userid", "xfire",
+            "xmlrpc.beep", "xmlrpc.beeps", "xmpp", "xri", "ymsgr", "z39.50", "z39.50r",
+            "z39.50s:"
+        };
+        return list[rand(241)];
+    }
+
+    std::string
+    pchar()
+    {
+        if(rand(4))
+            return std::string(1,
+                "0123456789"
+                "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                "abcdefghijklmnopqrstuvwxyz"
+                ":@&=+$,"[rand(69)]);
+        std::string s = "%";
+        s += "0123456789abcdef"[rand(16)];
+        s += "0123456789abcdef"[rand(16)];
+        return s;
+    }
+
+    char
+    uric()
+    {
+        return 'a';
+    }
+
+    char
+    uric_no_slash()
+    {
+        return 'a';
+    }
+
+    std::string
+    param()
+    {
+        std::string s;
+        while(rand(2))
+            s += pchar();
+        return s;
+    }
+
+    std::string
+    query()
+    {
+        std::string s;
+        while(rand(2))
+            s += uric();
+        return s;
+    }
+
+    std::string
+    userinfo()
+    {
+        std::string s;
+        while(rand(2))
+            s += "a";
+        return s;
+    }
+
+    /*  authority     = server | reg_name
+
+        reg_name      = 1*( unreserved | escaped | "$" | "," |
+                        ";" | ":" | "@" | "&" | "=" | "+" )
+
+        server        = [ [ userinfo "@" ] hostport ]
+        userinfo      = *( unreserved | escaped |
+                         ";" | ":" | "&" | "=" | "+" | "$" | "," )
+
+        hostport      = host [ ":" port ]
+        host          = hostname | IPv4address
+        hostname      = *( domainlabel "." ) toplabel [ "." ]
+        domainlabel   = alphanum | alphanum *( alphanum | "-" ) alphanum
+        toplabel      = alpha | alpha *( alphanum | "-" ) alphanum
+        IPv4address   = 1*digit "." 1*digit "." 1*digit "." 1*digit
+        port          = *digit
+    */
+    std::string
+    server()
+    {
+        std::string s;
+        if(rand(2))
+            s += userinfo() + "@";
+        return s;
+    }
+
+    std::string
+    reg_name()
+    {
+        std::string s;
+        s = "a";
+        while(rand(2))
+            s += "a";
+        return s;
+    }
+
+    std::string
+    authority()
+    {
+        if(rand(2))
+            return server();
+        return reg_name();
+    }
+
+    std::string
+    opaque_part()
+    {
+        std::string s;
+        s += uric_no_slash();
+        while(rand(2))
+            s += uric();
+        return s;
+    }
+
+    /*  abs_path      = "/"  path_segments
+        path_segments = segment *( "/" segment )
+        segment       = *pchar *( ";" param )
+        param         = *pchar
+        pchar         = unreserved | escaped |
+                        ":" | "@" | "&" | "=" | "+" | "$" | ","
+    */
+    std::string
+    abs_path()
+    {
+        std::string s = "/";
+        for(;;)
+        {
+            while(rand(2))
+                s += pchar();
+            while(rand(2))
+                s += ";" + param();
+            if(rand(2))
+                break;
+            s.append("/");
+        }
+        return s;
+    }
+
+    /*  net_path      = "//" authority [ abs_path ]
+    */
+    std::string
+    net_path()
+    {
+        std::string s = "//";
+        s += authority();
+        if(rand(2))
+            s += abs_path();
+        return s;
+    }
+
+    /*  absoluteURI   = scheme ":" ( hier_part | opaque_part )
+        scheme        = alpha *( alpha | digit | "+" | "-" | "." )
+        hier_part     = ( net_path | abs_path ) [ "?" query ]
+        abs_path      = "/"  path_segments
+        query         = *uric
+        opaque_part   = uric_no_slash *uric
+    */
+    std::string
+    abs_uri()
+    {
+        std::string s;
+        s = scheme() + ":";
+        if(rand(2))
+        {
+            if(rand(2))
+                s += net_path();
+            else
+                s += abs_path();
+            if(rand(2))
+                s += "?" + query();
+        }
+        else
+        {
+            s += opaque_part();
+        }
+        return s;
+    }
+
+    std::string
+    target()
+    {
+        //switch(rand(4))
+        switch(1)
+        {
+        case 0: return abs_uri();
+        case 1: return abs_path();
+        case 2: return authority();
+        default:
+        case 3: break;
+        }
+        return "*";
+    }
+
+    std::string
+    token()
+    {
+        static char constexpr valid[78] =
+            "!#$%&\'*+-." "0123456789" "ABCDEFGHIJ" "KLMNOPQRST"
+            "UVWXYZ^_`a"  "bcdefghijk" "lmnopqrstu" "vwxyz|~";
+        std::string s;
+        s.append(1, valid[rand(77)]);
+        while(rand(4))
+            s.append(1, valid[rand(77)]);
+        return s;
+    }
+
+#if 0
+    std::string
+    target()
+    {
+        static char constexpr alpha[63] =
+            "0123456789" "ABCDEFGHIJ" "KLMNOPQRST"
+            "UVWXYZabcd" "efghijklmn" "opqrstuvwx" "yz";
+        std::string s;
+        s = "/";
+        while(rand(4))
+            s.append(1, alpha[rand(62)]);
+        return s;
+    }
+#endif
+
+    std::string
+    field()
+    {        static char const* const list[289] =
+        {
+            "A-IM",
+            "Accept", "Accept-Additions", "Accept-Charset", "Accept-Datetime", "Accept-Encoding",
+            "Accept-Features", "Accept-Language", "Accept-Patch", "Accept-Ranges", "Age", "Allow",
+            "ALPN", "Also-Control", "Alt-Svc", "Alt-Used", "Alternate-Recipient", "Alternates",
+            "Apply-To-Redirect-Ref", "Approved", "Archive", "Archived-At", "Article-Names",
+            "Article-Updates", "Authentication-Info", "Authentication-Results", "Authorization",
+            "Auto-Submitted", "Autoforwarded", "Autosubmitted", "Base", "Bcc", "Body", "C-Ext",
+            "C-Man", "C-Opt", "C-PEP", "C-PEP-Info", "Cache-Control",
+            "CalDAV-Timezones", "Cc", "Close", "Comments", /*"Connection",*/ "Content-Alternative",
+            "Content-Base", "Content-Description", "Content-Disposition", "Content-Duration",
+            "Content-Encoding", "Content-features", "Content-ID", "Content-Identifier",
+            "Content-Language", /*"Content-Length",*/ "Content-Location", "Content-MD5",
+            "Content-Range", "Content-Return", "Content-Script-Type", "Content-Style-Type",
+            "Content-Transfer-Encoding", "Content-Type", "Content-Version", "Control", "Conversion",
+            "Conversion-With-Loss", "Cookie", "Cookie2", "DASL", "DAV", "DL-Expansion-History", "Date",
+            "Date-Received", "Default-Style", "Deferred-Delivery", "Delivery-Date", "Delta-Base",
+            "Depth", "Derived-From", "Destination", "Differential-ID", "Digest",
+            "Discarded-X400-IPMS-Extensions", "Discarded-X400-MTS-Extensions", "Disclose-Recipients",
+            "Disposition-Notification-Options", "Disposition-Notification-To", "Distribution",
+            "DKIM-Signature", "Downgraded-Bcc", "Downgraded-Cc", "Downgraded-Disposition-Notification-To",
+            "Downgraded-Final-Recipient", "Downgraded-From", "Downgraded-In-Reply-To",
+            "Downgraded-Mail-From", "Downgraded-Message-Id", "Downgraded-Original-Recipient",
+            "Downgraded-Rcpt-To", "Downgraded-References", "Downgraded-Reply-To", "Downgraded-Resent-Bcc",
+            "Downgraded-Resent-Cc", "Downgraded-Resent-From", "Downgraded-Resent-Reply-To",
+            "Downgraded-Resent-Sender", "Downgraded-Resent-To", "Downgraded-Return-Path",
+            "Downgraded-Sender", "Downgraded-To", "Encoding", "Encrypted", "ETag", "Expect",
+            "Expires", "Expiry-Date", "Ext", "Followup-To", "Forwarded", "From",
+            "Generate-Delivery-Report", "GetProfile", "Hobareg", "Host", "HTTP2-Settings", "IM", "If",
+            "If-Match", "If-Modified-Since", "If-None-Match", "If-Range", "If-Schedule-Tag-Match",
+            "If-Unmodified-Since", "Importance", "In-Reply-To", "Incomplete-Copy", "Injection-Date",
+            "Injection-Info", "Keep-Alive", "Keywords", "Label", "Language", "Last-Modified",
+            "Latest-Delivery-Time", "Lines", "Link", "List-Archive", "List-Help", "List-ID",
+            "List-Owner", "List-Post", "List-Subscribe", "List-Unsubscribe", "Location", "Lock-Token",
+            "Man", "Max-Forwards", "Memento-Datetime", "Message-Context", "Message-ID", "Message-Type",
+            "Meter", "MIME-Version", "MMHS-Exempted-Address", "MMHS-Extended-Authorisation-Info",
+            "MMHS-Subject-Indicator-Codes", "MMHS-Handling-Instructions", "MMHS-Message-Instructions",
+            "MMHS-Codress-Message-Indicator", "MMHS-Originator-Reference", "MMHS-Primary-Precedence",
+            "MMHS-Copy-Precedence", "MMHS-Message-Type", "MMHS-Other-Recipients-Indicator-To",
+            "MMHS-Other-Recipients-Indicator-CC", "MMHS-Acp127-Message-Identifier", "MMHS-Originator-PLAD",
+            "MT-Priority", "Negotiate", "Newsgroups", "NNTP-Posting-Date", "NNTP-Posting-Host",
+            "Obsoletes", "Opt", "Ordering-Type", "Organization", "Origin",
+            "Original-Encoded-Information-Types", "Original-From", "Original-Message-ID",
+            "Original-Recipient", "Original-Sender", "Originator-Return-Address", "Original-Subject",
+            "Overwrite", "P3P", "Path", "PEP", "PICS-Label", "Pep-Info", "Position", "Posting-Version",
+            "Pragma", "Prefer", "Preference-Applied", "Prevent-NonDelivery-Report", "Priority",
+            "ProfileObject", "Protocol", "Protocol-Info", "Protocol-Query", "Protocol-Request",
+            "Proxy-Authenticate", "Proxy-Authentication-Info", "Proxy-Authorization", "Proxy-Features",
+            "Proxy-Instruction", "Public", "Public-Key-Pins", "Public-Key-Pins-Report-Only", "Range",
+            "Received", "Received-SPF", "Redirect-Ref", "References", "Referer", "Relay-Version",
+            "Reply-By", "Reply-To", "Require-Recipient-Valid-Since", "Resent-Bcc", "Resent-Cc",
+            "Resent-Date", "Resent-From", "Resent-Message-ID", "Resent-Reply-To", "Resent-Sender",
+            "Resent-To", "Retry-After", "Return-Path", "Safe", "Schedule-Reply", "Schedule-Tag",
+            "Sec-WebSocket-Accept", "Sec-WebSocket-Extensions", "Sec-WebSocket-Key",
+            "Sec-WebSocket-Protocol", "Sec-WebSocket-Version", "Security-Scheme", "See-Also", "Sender",
+            "Sensitivity", "Server", "Set-Cookie", "Set-Cookie2",
+            "SetProfile", "SLUG", "SoapAction", "Solicitation", "Status-URI", "Strict-Transport-Security",
+            "Subject", "Summary", "Supersedes", "Surrogate-Capability", "Surrogate-Control", "TCN",
+            "TE", "Timeout", "To", "Trailer", /*"Transfer-Encoding",*/ "URI", /*"Upgrade",*/ "User-Agent",
+            "Variant-Vary", "Vary", "VBR-Info", "Via", "WWW-Authenticate", "Want-Digest", "Warning",
+            "X400-Content-Identifier", "X400-Content-Return", "X400-Content-Type", "X400-MTS-Identifier",
+            "X400-Originator", "X400-Received", "X400-Recipients", "X400-Trace", "X-Frame-Options", "Xref"
+        };
+        return list[rand(289)];
+    }
+
+    std::string
+    text()
+    {
+        std::string s;
+        while(rand(3))
+        {
+            for(;;)
+            {
+                char c = rand<char>(256);
+                if(detail::is_text(c))
+                {
+                    s.append(1, c);
+                    break;
+                }
+            }
+        }
+        return s;
+    }
+
+    std::string
+    value()
+    {
+        std::string s;
+        while(rand(3))
+        {
+            if(rand(5))
+            {
+                s.append(text());
+            }
+            else
+            {
+                // LWS
+                if(! rand(4))
+                    s.append("\r\n");
+                s.append(1, rand(2) ? ' ' : '\t');
+                while(rand(2))
+                    s.append(1, rand(2) ? ' ' : '\t');
+            }
+        }
+        return s;
+    }
+
+    template<class DynamicBuffer>
+    void
+    fields(DynamicBuffer& db)
+    {
+        auto os = ostream(db);
+        while(rand(6))
+            os <<
+                field() <<
+                (rand(4) ? ": " : ":") <<
+                value() <<
+                "\r\n";
+    }
+
+    template<class DynamicBuffer>
+    void
+    body(DynamicBuffer& db)
+    {
+        if(! rand(4))
+        {
+            ostream(db) <<
+                "Content-Length: 0\r\n\r\n";
+            return;
+        }
+        if(rand(2))
+        {
+            auto const len = rand(500);
+            ostream(db) <<
+                "Content-Length: " << len << "\r\n\r\n";
+            auto mb = db.prepare(len);
+            for(auto it = net::buffer_sequence_begin(mb);
+                it != net::buffer_sequence_end(mb);
+                ++it)
+            {
+                net::mutable_buffer b = *it;
+                auto p = static_cast<char*>(b.data());
+                auto n = b.size();
+                while(n--)
+                    *p++ = static_cast<char>(32 + rand(26+26+10+6));
+            }
+            db.commit(len);
+        }
+        else
+        {
+            auto len = rand(500);
+            ostream(db) <<
+                "Transfer-Encoding: chunked\r\n\r\n";
+            while(len > 0)
+            {
+                auto n = (std::min)(1 + rand(300), len);
+                len -= n;
+                ostream(db) <<
+                    to_hex(n) << "\r\n";
+                auto mb = db.prepare(n);
+                for(auto it = net::buffer_sequence_begin(mb);
+                    it != net::buffer_sequence_end(mb);
+                    ++it)
+                {
+                    net::mutable_buffer b = *it;
+                    auto p = static_cast<char*>(b.data());
+                    auto m = b.size();
+                    while(m--)
+                        *p++ = static_cast<char>(32 + rand(26+26+10+6));
+                }
+                db.commit(n);
+                ostream(db) << "\r\n";
+            }
+            ostream(db) << "0\r\n\r\n";
+        }
+    }
+
+    template<class DynamicBuffer>
+    void
+    request(DynamicBuffer& db)
+    {
+        ostream(db) <<
+            method() << " " << target() << " HTTP/1.1\r\n";
+        fields(db);
+        body(db);
+    }
+
+    template<class DynamicBuffer>
+    void
+    response(DynamicBuffer& db)
+    {
+        ostream(db) <<
+            "HTTP/1." <<
+            (rand(2) ? "0" : "1") << " " <<
+            (100 + rand(401)) << " " <<
+            token() <<
+            "\r\n";
+        fields(db);
+        body(db);
+        ostream(db) << "\r\n";
+    }
+};
+
+using message_fuzz = message_fuzz_t<>;
+
+template<class Good, class Bad>
+void
+chunkExtensionsTest(
+    Good const& good, Bad const& bad)
+{
+    good("");
+    good(";x");
+    good(";x;y");
+    good(";x=y");
+    good(";x;y=z");
+    good(" ;x");
+    good("\t;x");
+    good(" \t;x");
+    good("\t ;x");
+    good(" ; x");
+    good(" ;\tx");
+    good("\t ; \tx");
+    good(";x= y");
+    good(" ;x= y");
+    good(" ; x= y");
+    good(R"(;x="\"")");
+    good(R"(;x="\\")");
+    good(R"(;x;y=z;z="\"";p="\\";q="1\"2\\")");
+
+    bad(" ");
+    bad(";");
+    bad("=");
+    bad(" ;");
+    bad("; ");
+    bad(" ; ");
+    bad(" ; x ");
+    bad(";x =");
+    bad(";x = ");
+    bad(";x==");
+}
+
+} // http
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/http/parser.cpp b/src/boost/libs/beast/test/beast/http/parser.cpp
new file mode 100644
index 000000000..d68426222
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/parser.cpp
@@ -0,0 +1,436 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/parser.hpp>
+
+#include "test_parser.hpp"
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_suffix.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/http/read.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/system/system_error.hpp>
+#include <algorithm>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class parser_test
+    : public beast::unit_test::suite
+{
+public:
+    template<bool isRequest>
+    using parser_type =
+        parser<isRequest, string_body>;
+
+    static
+    net::const_buffer
+    buf(string_view s)
+    {
+        return {s.data(), s.size()};
+    }
+
+    template<class ConstBufferSequence,
+        bool isRequest>
+    static
+    void
+    put(ConstBufferSequence const& buffers,
+        basic_parser<isRequest>& p,
+            error_code& ec)
+    {
+        buffers_suffix<ConstBufferSequence> cb{buffers};
+        for(;;)
+        {
+            auto const used = p.put(cb, ec);
+            cb.consume(used);
+            if(ec)
+                return;
+            if(p.need_eof() &&
+                buffer_bytes(cb) == 0)
+            {
+                p.put_eof(ec);
+                if(ec)
+                    return;
+            }
+            if(p.is_done())
+                break;
+        }
+    }
+
+    template<bool isRequest, class F>
+    void
+    doMatrix(string_view s0, F const& f)
+    {
+        // parse a single buffer
+        {
+            auto s = s0;
+            error_code ec;
+            parser_type<isRequest> p;
+            put(net::buffer(s.data(), s.size()), p, ec);
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                return;
+            f(p);
+        }
+        // parse two buffers
+        for(auto n = s0.size() - 1; n >= 1; --n)
+        {
+            auto s = s0;
+            error_code ec;
+            parser_type<isRequest> p;
+            p.eager(true);
+            auto used =
+                p.put(net::buffer(s.data(), n), ec);
+            s.remove_prefix(used);
+            if(ec == error::need_more)
+                ec = {};
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                continue;
+            BEAST_EXPECT(! p.is_done());
+            used = p.put(
+                net::buffer(s.data(), s.size()), ec);
+            s.remove_prefix(used);
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                continue;
+            BEAST_EXPECT(s.empty());
+            if(p.need_eof())
+            {
+                p.put_eof(ec);
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    continue;
+            }
+            if(BEAST_EXPECT(p.is_done()))
+                f(p);
+        }
+    }
+
+    void
+    testParse()
+    {
+        doMatrix<false>(
+            "HTTP/1.0 200 OK\r\n"
+            "Server: test\r\n"
+            "\r\n"
+            "Hello, world!",
+            [&](parser_type<false> const& p)
+            {
+                auto const& m = p.get();
+                BEAST_EXPECT(! p.chunked());
+                BEAST_EXPECT(p.need_eof());
+                BEAST_EXPECT(p.content_length() == boost::none);
+                BEAST_EXPECT(m.version() == 10);
+                BEAST_EXPECT(m.result() == status::ok);
+                BEAST_EXPECT(m.reason() == "OK");
+                BEAST_EXPECT(m["Server"] == "test");
+                BEAST_EXPECT(m.body() == "Hello, world!");
+            }
+        );
+        doMatrix<false>(
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Expect: Expires, MD5-Fingerprint\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "5\r\n"
+            "*****\r\n"
+            "2;a;b=1;c=\"2\"\r\n"
+            "--\r\n"
+            "0;d;e=3;f=\"4\"\r\n"
+            "Expires: never\r\n"
+            "MD5-Fingerprint: -\r\n"
+            "\r\n",
+            [&](parser_type<false> const& p)
+            {
+                auto const& m = p.get();
+                BEAST_EXPECT(! p.need_eof());
+                BEAST_EXPECT(p.chunked());
+                BEAST_EXPECT(p.content_length() == boost::none);
+                BEAST_EXPECT(m.version() == 11);
+                BEAST_EXPECT(m.result() == status::ok);
+                BEAST_EXPECT(m.reason() == "OK");
+                BEAST_EXPECT(m["Server"] == "test");
+                BEAST_EXPECT(m["Transfer-Encoding"] == "chunked");
+                BEAST_EXPECT(m["Expires"] == "never");
+                BEAST_EXPECT(m["MD5-Fingerprint"] == "-");
+                BEAST_EXPECT(m.body() == "*****--");
+            }
+        );
+        doMatrix<false>(
+            "HTTP/1.0 200 OK\r\n"
+            "Server: test\r\n"
+            "Content-Length: 5\r\n"
+            "\r\n"
+            "*****",
+            [&](parser_type<false> const& p)
+            {
+                auto const& m = p.get();
+                BEAST_EXPECT(m.body() == "*****");
+            }
+        );
+        doMatrix<true>(
+            "GET / HTTP/1.1\r\n"
+            "User-Agent: test\r\n"
+            "\r\n",
+            [&](parser_type<true> const& p)
+            {
+                auto const& m = p.get();
+                BEAST_EXPECT(m.method() == verb::get);
+                BEAST_EXPECT(m.target() == "/");
+                BEAST_EXPECT(m.version() == 11);
+                BEAST_EXPECT(! p.need_eof());
+                BEAST_EXPECT(! p.chunked());
+                BEAST_EXPECT(p.content_length() == boost::none);
+            }
+        );
+        doMatrix<true>(
+            "GET / HTTP/1.1\r\n"
+            "User-Agent: test\r\n"
+            "X: \t x \t \r\n"
+            "\r\n",
+            [&](parser_type<true> const& p)
+            {
+                auto const& m = p.get();
+                BEAST_EXPECT(m["X"] == "x");
+            }
+        );
+
+        // test eager(true)
+        {
+            error_code ec;
+            parser_type<true> p;
+            p.eager(true);
+            p.put(buf(
+                "GET / HTTP/1.1\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 1\r\n"
+                "\r\n"
+                "*")
+                , ec);
+            auto const& m = p.get();
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(p.is_done());
+            BEAST_EXPECT(p.is_header_done());
+            BEAST_EXPECT(! p.need_eof());
+            BEAST_EXPECT(m.method() == verb::get);
+            BEAST_EXPECT(m.target() == "/");
+            BEAST_EXPECT(m.version() == 11);
+            BEAST_EXPECT(m["User-Agent"] == "test");
+            BEAST_EXPECT(m.body() == "*");
+        }
+        {
+            // test partial parsing of final chunk
+            // parse through the chunk body
+            error_code ec;
+            flat_buffer b;
+            parser_type<true> p;
+            p.eager(true);
+            ostream(b) <<
+                "PUT / HTTP/1.1\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "1\r\n"
+                "*";
+            auto used = p.put(b.data(), ec);
+            b.consume(used);
+            BEAST_EXPECT(! ec);
+            BEAST_EXPECT(! p.is_done());
+            BEAST_EXPECT(p.get().body() == "*");
+            ostream(b) <<
+                "\r\n"
+                "0;d;e=3;f=\"4\"\r\n"
+                "Expires: never\r\n"
+                "MD5-Fingerprint: -\r\n";
+            // incomplete parse, missing the final crlf
+            used = p.put(b.data(), ec);
+            b.consume(used);
+            BEAST_EXPECT(ec == error::need_more);
+            ec = {};
+            BEAST_EXPECT(! p.is_done());
+            ostream(b) <<
+                "\r\n"; // final crlf to end message
+            used = p.put(b.data(), ec);
+            b.consume(used);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+        }
+        // skip body
+        {
+            error_code ec;
+            response_parser<string_body> p;
+            p.skip(true);
+            p.put(buf(
+                "HTTP/1.1 200 OK\r\n"
+                "Content-Length: 5\r\n"
+                "\r\n"
+                "*****")
+                , ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(p.is_done());
+            BEAST_EXPECT(p.is_header_done());
+            BEAST_EXPECT(p.content_length() &&
+                *p.content_length() == 5);
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    template<class DynamicBuffer>
+    void
+    testNeedMore()
+    {
+        error_code ec;
+        std::size_t used;
+        {
+            DynamicBuffer b;
+            parser_type<true> p;
+            ostream(b) <<
+                "GET / HTTP/1.1\r\n";
+            used = p.put(b.data(), ec);
+            BEAST_EXPECTS(ec == error::need_more, ec.message());
+            b.consume(used);
+            ec = {};
+            ostream(b) <<
+                "User-Agent: test\r\n"
+                "\r\n";
+            used = p.put(b.data(), ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            b.consume(used);
+            BEAST_EXPECT(p.is_done());
+            BEAST_EXPECT(p.is_header_done());
+        }
+    }
+
+    void
+    testGotSome()
+    {
+        error_code ec;
+        parser_type<true> p;
+        auto used = p.put(buf(""), ec);
+        BEAST_EXPECT(ec == error::need_more);
+        BEAST_EXPECT(! p.got_some());
+        BEAST_EXPECT(used == 0);
+        ec = {};
+        used = p.put(buf("G"), ec);
+        BEAST_EXPECT(ec == error::need_more);
+        BEAST_EXPECT(p.got_some());
+        BEAST_EXPECT(used == 0);
+    }
+
+    void
+    testIssue818()
+    {
+        // Make sure that the parser clears pre-existing fields
+        request<string_body> m;
+        m.set(field::accept, "html/text");
+        BEAST_EXPECT(std::distance(m.begin(), m.end()) == 1);
+        request_parser<string_body> p{std::move(m)};
+        BEAST_EXPECT(std::distance(m.begin(), m.end()) == 0);
+        auto& m1 = p.get();
+        BEAST_EXPECT(std::distance(m1.begin(), m1.end()) == 0);
+    }
+
+    void
+    testIssue1187()
+    {
+        // make sure parser finishes on redirect
+        error_code ec;
+        parser_type<false> p;
+        p.eager(true);
+        p.put(buf(
+            "HTTP/1.1 301 Moved Permanently\r\n"
+            "Location: https://www.ebay.com\r\n"
+            "\r\n\r\n"), ec);
+        BEAST_EXPECTS(! ec, ec.message());
+        BEAST_EXPECT(p.is_header_done());
+        BEAST_EXPECT(! p.is_done());
+        BEAST_EXPECT(p.need_eof());
+    }
+
+    void
+    testIssue1880()
+    {
+        // A user raised the issue that multiple Content-Length fields and
+        // values are permissible provided all values are the same.
+        // See rfc7230 section-3.3.2
+        // https://tools.ietf.org/html/rfc7230#section-3.3.2
+        // Credit: Dimitry Bulsunov
+
+        auto checkPass = [&](std::string const& message)
+        {
+            response_parser<string_body> parser;
+            error_code ec;
+            parser.put(net::buffer(message), ec);
+            BEAST_EXPECTS(!ec.failed(), ec.message());
+        };
+
+        auto checkFail = [&](std::string const& message)
+        {
+            response_parser<string_body> parser;
+            error_code ec;
+            parser.put(net::buffer(message), ec);
+            BEAST_EXPECTS(ec == error::bad_content_length, ec.message());
+        };
+
+        // multiple contents lengths the same
+        checkPass(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 0\r\n"
+            "Content-Length: 0\r\n"
+            "\r\n");
+
+        // multiple contents lengths different
+        checkFail(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 0\r\n"
+            "Content-Length: 1\r\n"
+            "\r\n");
+
+        // multiple content in same header
+        checkPass(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 0, 0, 0\r\n"
+            "\r\n");
+
+        // multiple content in same header but mismatch (case 1)
+        checkFail(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 0, 0, 1\r\n"
+            "\r\n");
+
+        // multiple content in same header but mismatch (case 2)
+        checkFail(
+            "HTTP/1.1 200 OK\r\n"
+            "Content-Length: 0, 0, 0\r\n"
+            "Content-Length: 1\r\n"
+            "\r\n");
+    }
+
+    void
+    run() override
+    {
+        testParse();
+        testNeedMore<flat_buffer>();
+        testNeedMore<multi_buffer>();
+        testGotSome();
+        testIssue818();
+        testIssue1187();
+        testIssue1880();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,parser);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/read.cpp b/src/boost/libs/beast/test/beast/http/read.cpp
new file mode 100644
index 000000000..8446894b8
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/read.cpp
@@ -0,0 +1,562 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/read.hpp>
+
+#include "test_parser.hpp"
+
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/flat_static_buffer.hpp>
+#include <boost/beast/http/fields.hpp>
+#include <boost/beast/http/dynamic_body.hpp>
+#include <boost/beast/http/parser.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/test/yield_to.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <atomic>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class read_test
+    : public beast::unit_test::suite
+    , public test::enable_yield_to
+{
+public:
+    template<bool isRequest>
+    void
+    failMatrix(char const* s, yield_context do_yield)
+    {
+        static std::size_t constexpr limit = 100;
+        std::size_t n;
+        auto const len = strlen(s);
+        for(n = 0; n < limit; ++n)
+        {
+            multi_buffer b;
+            b.commit(net::buffer_copy(
+                b.prepare(len), net::buffer(s, len)));
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc};
+            test_parser<isRequest> p(fc);
+            error_code ec = test::error::test_failure;
+            ts.close_remote();
+            read(ts, b, p, ec);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+        for(n = 0; n < limit; ++n)
+        {
+            static std::size_t constexpr pre = 10;
+            multi_buffer b;
+            b.commit(net::buffer_copy(
+                b.prepare(pre), net::buffer(s, pre)));
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc,
+                std::string(s + pre, len - pre)};
+            test_parser<isRequest> p(fc);
+            error_code ec = test::error::test_failure;
+            ts.close_remote();
+            read(ts, b, p, ec);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+        for(n = 0; n < limit; ++n)
+        {
+            multi_buffer b;
+            b.commit(net::buffer_copy(
+                b.prepare(len), net::buffer(s, len)));
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc};
+            test_parser<isRequest> p(fc);
+            error_code ec = test::error::test_failure;
+            ts.close_remote();
+            async_read(ts, b, p, do_yield[ec]);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+        for(n = 0; n < limit; ++n)
+        {
+            multi_buffer b;
+            b.commit(net::buffer_copy(
+                b.prepare(len), net::buffer(s, len)));
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc};
+            test_parser<isRequest> p(fc);
+            error_code ec = test::error::test_failure;
+            ts.close_remote();
+            async_read_header(ts, b, p, do_yield[ec]);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+        for(n = 0; n < limit; ++n)
+        {
+            static std::size_t constexpr pre = 10;
+            multi_buffer b;
+            b.commit(net::buffer_copy(
+                b.prepare(pre), net::buffer(s, pre)));
+            test::fail_count fc(n);
+            test::stream ts(ioc_, fc,
+                std::string{s + pre, len - pre});
+            test_parser<isRequest> p(fc);
+            error_code ec = test::error::test_failure;
+            ts.close_remote();
+            async_read(ts, b, p, do_yield[ec]);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+    }
+
+    void testThrow()
+    {
+        try
+        {
+            multi_buffer b;
+            test::stream c{ioc_, "GET / X"};
+            c.close_remote();
+            request_parser<dynamic_body> p;
+            read(c, b, p);
+            fail();
+        }
+        catch(std::exception const&)
+        {
+            pass();
+        }
+    }
+
+    void
+    testBufferOverflow()
+    {
+        {
+            test::stream c{ioc_};
+            ostream(c.buffer()) <<
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "User-Agent: test\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "10\r\n"
+                "****************\r\n"
+                "0\r\n\r\n";
+            flat_static_buffer<1024> b;
+            request<string_body> req;
+            try
+            {
+                read(c, b, req);
+                pass();
+            }
+            catch(std::exception const& e)
+            {
+                fail(e.what(), __FILE__, __LINE__);
+            }
+        }
+        {
+            test::stream c{ioc_};
+            ostream(c.buffer()) <<
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "User-Agent: test\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "10\r\n"
+                "****************\r\n"
+                "0\r\n\r\n";
+            error_code ec = test::error::test_failure;
+            flat_static_buffer<10> b;
+            request<string_body> req;
+            read(c, b, req, ec);
+            BEAST_EXPECTS(ec == error::buffer_overflow,
+                ec.message());
+        }
+    }
+
+    void testFailures(yield_context do_yield)
+    {
+        char const* req[] = {
+            "GET / HTTP/1.0\r\n"
+            "Host: localhost\r\n"
+            "User-Agent: test\r\n"
+            "Empty:\r\n"
+            "\r\n"
+            ,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost\r\n"
+            "User-Agent: test\r\n"
+            "Content-Length: 2\r\n"
+            "\r\n"
+            "**"
+            ,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost\r\n"
+            "User-Agent: test\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "10\r\n"
+            "****************\r\n"
+            "0\r\n\r\n"
+            ,
+            nullptr
+        };
+
+        char const* res[] = {
+            "HTTP/1.0 200 OK\r\n"
+            "Server: test\r\n"
+            "\r\n"
+            ,
+            "HTTP/1.0 200 OK\r\n"
+            "Server: test\r\n"
+            "\r\n"
+            "***"
+            ,
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Content-Length: 3\r\n"
+            "\r\n"
+            "***"
+            ,
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "10\r\n"
+            "****************\r\n"
+            "0\r\n\r\n"
+            ,
+            nullptr
+        };
+        for(std::size_t i = 0; req[i]; ++i)
+            failMatrix<true>(req[i], do_yield);
+        for(std::size_t i = 0; res[i]; ++i)
+            failMatrix<false>(res[i], do_yield);
+    }
+
+    void testRead(yield_context do_yield)
+    {
+        static std::size_t constexpr limit = 100;
+        std::size_t n;
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream c{ioc_, fc,
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 0\r\n"
+                "\r\n"
+            };
+            request<dynamic_body> m;
+            try
+            {
+                multi_buffer b;
+                read(c, b, m);
+                break;
+            }
+            catch(std::exception const&)
+            {
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream ts{ioc_, fc,
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 0\r\n"
+                "\r\n"
+            };
+            request<dynamic_body> m;
+            error_code ec = test::error::test_failure;
+            multi_buffer b;
+            read(ts, b, m, ec);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream c{ioc_, fc,
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 0\r\n"
+                "\r\n"
+            };
+            request<dynamic_body> m;
+            error_code ec = test::error::test_failure;
+            multi_buffer b;
+            async_read(c, b, m, do_yield[ec]);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            test::stream c{ioc_, fc,
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 0\r\n"
+                "\r\n"
+            };
+            request_parser<dynamic_body> m;
+            error_code ec = test::error::test_failure;
+            multi_buffer b;
+            async_read_some(c, b, m, do_yield[ec]);
+            if(! ec)
+                break;
+        }
+        BEAST_EXPECT(n < limit);
+    }
+
+    void
+    testEof(yield_context do_yield)
+    {
+        {
+            multi_buffer b;
+            test::stream ts{ioc_};
+            request_parser<dynamic_body> p;
+            error_code ec;
+            ts.close_remote();
+            read(ts, b, p, ec);
+            BEAST_EXPECT(ec == http::error::end_of_stream);
+        }
+        {
+            multi_buffer b;
+            test::stream ts{ioc_};
+            request_parser<dynamic_body> p;
+            error_code ec;
+            ts.close_remote();
+            async_read(ts, b, p, do_yield[ec]);
+            BEAST_EXPECT(ec == http::error::end_of_stream);
+        }
+    }
+
+    // Ensure completion handlers are not leaked
+    struct handler
+    {
+        static std::atomic<std::size_t>&
+        count() { static std::atomic<std::size_t> n; return n; }
+        handler() { ++count(); }
+        ~handler() { --count(); }
+        handler(handler const&) { ++count(); }
+        void operator()(error_code const&, std::size_t) const {}
+    };
+
+    void
+    testIoService()
+    {
+        {
+            // Make sure handlers are not destroyed
+            // after calling io_context::stop
+            net::io_context ioc;
+            test::stream ts{ioc,
+                "GET / HTTP/1.1\r\n\r\n"};
+            BEAST_EXPECT(handler::count() == 0);
+            multi_buffer b;
+            request<dynamic_body> m;
+            async_read(ts, b, m, handler{});
+            BEAST_EXPECT(handler::count() > 0);
+            ioc.stop();
+            BEAST_EXPECT(handler::count() > 0);
+            ioc.restart();
+            BEAST_EXPECT(handler::count() > 0);
+            ioc.run_one();
+            BEAST_EXPECT(handler::count() == 0);
+        }
+        {
+            // Make sure uninvoked handlers are
+            // destroyed when calling ~io_context
+            {
+                net::io_context ioc;
+                test::stream ts{ioc,
+                    "GET / HTTP/1.1\r\n\r\n"};
+                BEAST_EXPECT(handler::count() == 0);
+                multi_buffer b;
+                request<dynamic_body> m;
+                async_read(ts, b, m, handler{});
+                BEAST_EXPECT(handler::count() > 0);
+            }
+            BEAST_EXPECT(handler::count() == 0);
+        }
+    }
+
+    // https://github.com/boostorg/beast/issues/430
+    void
+    testRegression430()
+    {
+        test::stream ts{ioc_};
+        ts.read_size(1);
+        ostream(ts.buffer()) <<
+          "HTTP/1.1 200 OK\r\n"
+          "Transfer-Encoding: chunked\r\n"
+          "Content-Type: application/octet-stream\r\n"
+          "\r\n"
+          "4\r\nabcd\r\n"
+          "0\r\n\r\n";
+        error_code ec;
+        flat_buffer fb;
+        response_parser<dynamic_body> p;
+        read(ts, fb, p, ec);
+        BEAST_EXPECTS(! ec, ec.message());
+    }
+
+    //--------------------------------------------------------------------------
+
+    template<class Parser, class Pred>
+    void
+    readgrind(string_view s, Pred&& pred)
+    {
+        for(std::size_t n = 1; n < s.size() - 1; ++n)
+        {
+            Parser p;
+            error_code ec = test::error::test_failure;
+            flat_buffer b;
+            test::stream ts{ioc_};
+            ostream(ts.buffer()) << s;
+            ts.read_size(n);
+            read(ts, b, p, ec);
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                continue;
+            pred(p);
+        }
+    }
+
+    void
+    testReadGrind()
+    {
+        readgrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "Content-Type: application/octet-stream\r\n"
+            "\r\n"
+            "4\r\nabcd\r\n"
+            "0\r\n\r\n"
+            ,[&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.body == "abcd");
+            });
+        readgrind<test_parser<false>>(
+            "HTTP/1.1 200 OK\r\n"
+            "Server: test\r\n"
+            "Expect: Expires, MD5-Fingerprint\r\n"
+            "Transfer-Encoding: chunked\r\n"
+            "\r\n"
+            "5\r\n"
+            "*****\r\n"
+            "2;a;b=1;c=\"2\"\r\n"
+            "--\r\n"
+            "0;d;e=3;f=\"4\"\r\n"
+            "Expires: never\r\n"
+            "MD5-Fingerprint: -\r\n"
+            "\r\n"
+            ,[&](test_parser<false> const& p)
+            {
+                BEAST_EXPECT(p.body == "*****--");
+            });
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    testAsioHandlerInvoke()
+    {
+        using strand = net::strand<
+            net::io_context::executor_type>;
+
+        // make sure things compile, also can set a
+        // breakpoint in asio_handler_invoke to make sure
+        // it is instantiated.
+        {
+            net::io_context ioc;
+            strand s{ioc.get_executor()};
+            test::stream ts{ioc};
+            flat_buffer b;
+            request_parser<dynamic_body> p;
+            async_read_some(ts, b, p,
+                net::bind_executor(
+                    s, copyable_handler{}));
+        }
+        {
+            net::io_context ioc;
+            strand s{ioc.get_executor()};
+            test::stream ts{ioc};
+            flat_buffer b;
+            request_parser<dynamic_body> p;
+            async_read(ts, b, p,
+                net::bind_executor(
+                    s, copyable_handler{}));
+        }
+        {
+            net::io_context ioc;
+            strand s{ioc.get_executor()};
+            test::stream ts{ioc};
+            flat_buffer b;
+            request<dynamic_body> m;
+            async_read(ts, b, m,
+                net::bind_executor(
+                    s, copyable_handler{}));
+        }
+    }
+
+    void
+    run() override
+    {
+        testThrow();
+        testBufferOverflow();
+
+        yield_to([&](yield_context yield)
+        {
+            testFailures(yield);
+        });
+        yield_to([&](yield_context yield)
+        {
+            testRead(yield);
+        });
+        yield_to([&](yield_context yield)
+        {
+            testEof(yield);
+        });
+
+        testIoService();
+        testRegression430();
+        testReadGrind();
+        testAsioHandlerInvoke();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,read);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/rfc7230.cpp b/src/boost/libs/beast/test/beast/http/rfc7230.cpp
new file mode 100644
index 000000000..1bcc13534
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/rfc7230.cpp
@@ -0,0 +1,361 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/rfc7230.hpp>
+
+#include <boost/beast/http/detail/rfc7230.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <string>
+#include <vector>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class rfc7230_test : public beast::unit_test::suite
+{
+public:
+    static
+    std::string
+    fmt(std::string const& s)
+    {
+        return '\'' + s + '\'';
+    }
+
+    static
+    std::string
+    str(string_view s)
+    {
+        return std::string(s.data(), s.size());
+    }
+
+    static
+    std::string
+    str(param_list const& c)
+    {
+        std::string s;
+        for(auto const& p : c)
+        {
+            s.push_back(';');
+            s.append(str(p.first));
+            if(! p.second.empty())
+            {
+                s.push_back('=');
+                s.append(str(p.second));
+            }
+        }
+        return s;
+    }
+
+    void
+    testParamList()
+    {
+        auto const ce =
+            [&](std::string const& s)
+            {
+                auto const got = str(param_list{s});
+                BEAST_EXPECTS(got == s, fmt(got));
+            };
+        auto const cs =
+            [&](std::string const& s, std::string const& answer)
+            {
+                ce(answer);
+                auto const got = str(param_list{s});
+                ce(got);
+                BEAST_EXPECTS(got == answer, fmt(got));
+            };
+        auto const cq =
+            [&](std::string const& s, std::string const& answer)
+            {
+                auto const got = str(param_list{s});
+                BEAST_EXPECTS(got == answer, fmt(got));
+            };
+
+        ce("");
+        ce(";x");
+        ce(";xy");
+        ce(";x;y");
+
+        ce("");
+        cs(" ;\t i =\t 1 \t", ";i=1");
+        cq("\t; \t xyz=1 ; ijk=\"q\\\"t\"", ";xyz=1;ijk=q\"t");
+        ce(";x;y");
+
+		ce(";chunked;a=b;i=j;gzip;windowBits=12");
+		ce(";chunked;a=b;i=j;gzip;windowBits=12;permessage-deflate");
+
+        // invalid strings
+        cs(";", "");
+        cs(";,", "");
+        cq(";x=,", "");
+        cq(";xy=\"", "");
+        cq(";xy=\"\x7f", "");
+        cq(";xy=\"\\", "");
+        cq(";xy=\"\\\x01\"", "");
+
+    }
+
+    static
+    std::string
+    str(ext_list const& ex)
+    {
+        std::string s;
+        for(auto const& e : ex)
+        {
+            if(! s.empty())
+                s += ',';
+            s.append(str(e.first));
+            s += str(e.second);
+        }
+        return s;
+    }
+
+    void
+    testExtList()
+    {
+        auto const ce =
+            [&](std::string const& s)
+            {
+                auto const got = str(ext_list{s});
+                BEAST_EXPECTS(got == s, fmt(got));
+            };
+        auto const cs =
+            [&](std::string const& s, std::string const& good)
+            {
+                ce(good);
+                auto const got = str(ext_list{s});
+                ce(got);
+                BEAST_EXPECTS(got == good, fmt(got));
+            };
+        auto const cq =
+            [&](std::string const& s, std::string const& good)
+            {
+                auto const got = str(ext_list{s});
+                BEAST_EXPECTS(got == good, fmt(got));
+            };
+    /*
+        ext-basic_parsed_list    = *( "," OWS ) ext *( OWS "," [ OWS ext ] )
+        ext         = token param-basic_parsed_list
+        param-basic_parsed_list  = *( OWS ";" OWS param )
+        param       = token OWS "=" OWS ( token / quoted-string )
+    */
+        cs(",", "");
+        cs(", ", "");
+        cs(",\t", "");
+        cs(", \t", "");
+        cs(" ", "");
+        cs(" ,", "");
+        cs("\t,", "");
+        cs("\t , \t", "");
+        cs(",,", "");
+        cs(" , \t,, \t,", "");
+        cs( "permessage-deflate; client_no_context_takeover; client_max_window_bits",
+            "permessage-deflate;client_no_context_takeover;client_max_window_bits");
+
+        ce("a");
+        ce("ab");
+        ce("a,b");
+        cs(" a ", "a");
+        cs("\t a, b\t  ,  c\t", "a,b,c");
+        ce("a;b");
+        ce("a;b;c");
+
+        cs("a; \t i\t=\t \t1\t ", "a;i=1");
+        ce("a;i=1;j=2;k=3");
+        ce("a;i=1;j=2;k=3,b;i=4;j=5;k=6");
+
+        cq("ab;x=\" \"", "ab;x= ");
+        cq("ab;x=\"\\\"\"", "ab;x=\"");
+
+        BEAST_EXPECT(ext_list{"a,b;i=1,c;j=2;k=3"}.exists("A"));
+        BEAST_EXPECT(ext_list{"a,b;i=1,c;j=2;k=3"}.exists("b"));
+        BEAST_EXPECT(! ext_list{"a,b;i=1,c;j=2;k=3"}.exists("d"));
+
+        // invalid strings
+        cs("i j", "i");
+        cs(";", "");
+    }
+
+    static
+    std::string
+    str(token_list const& c)
+    {
+        bool first = true;
+        std::string s;
+        for(auto const& p : c)
+        {
+            if(! first)
+                s.push_back(',');
+            s.append(str(p));
+            first = false;
+        }
+        return s;
+    }
+
+    void
+    testTokenList()
+    {
+        auto const ce =
+            [&](std::string const& s)
+            {
+                auto const got = str(token_list{s});
+                BEAST_EXPECTS(got == s, fmt(got));
+            };
+        auto const cs =
+            [&](std::string const& s, std::string const& good)
+            {
+                ce(good);
+                auto const got = str(token_list{s});
+                ce(got);
+                BEAST_EXPECTS(got == good, fmt(got));
+            };
+
+        cs("", "");
+        cs(" ", "");
+        cs("  ", "");
+        cs("\t", "");
+        cs(" \t ", "");
+        cs(",", "");
+        cs(",,", "");
+        cs(" ,", "");
+        cs(" , ,", "");
+        cs(" x", "x");
+        cs(" \t x", "x");
+        cs("x ", "x");
+        cs("x \t", "x");
+        cs(" \t x \t ", "x");
+        ce("x,y");
+        cs("x ,\ty ", "x,y");
+        cs("x, y, z", "x,y,z");
+
+        BEAST_EXPECT(token_list{"a,b,c"}.exists("A"));
+        BEAST_EXPECT(token_list{"a,b,c"}.exists("b"));
+        BEAST_EXPECT(! token_list{"a,b,c"}.exists("d"));
+
+        // invalid
+        cs("x y", "x");
+    }
+
+    template<class Policy>
+    static
+    std::vector<std::string>
+    to_vector(string_view in)
+    {
+        std::vector<std::string> v;
+        detail::basic_parsed_list<Policy> list{in};
+        for(auto const& s :
+                detail::basic_parsed_list<Policy>{in})
+            v.emplace_back(s.data(), s.size());
+        return v;
+    }
+
+    template<class Policy>
+    void
+    validate(string_view in,
+        std::vector<std::string> const& v)
+    {
+        BEAST_EXPECT(to_vector<Policy>(in) == v);
+    }
+
+    template<class Policy>
+    void
+    good(string_view in)
+    {
+        BEAST_EXPECT(validate_list(
+            detail::basic_parsed_list<Policy>{in}));
+    }
+
+    template<class Policy>
+    void
+    good(string_view in,
+        std::vector<std::string> const& v)
+    {
+        BEAST_EXPECT(validate_list(
+            detail::basic_parsed_list<Policy>{in}));
+        validate<Policy>(in, v);
+    }
+
+    template<class Policy>
+    void
+    bad(string_view in)
+    {
+        BEAST_EXPECT(! validate_list(
+            detail::basic_parsed_list<Policy>{in}));
+    }
+
+    void
+    testOptTokenList()
+    {
+    /*
+        #token = [ ( "," / token )   *( OWS "," [ OWS token ] ) ]
+    */
+        using type = detail::opt_token_list_policy;
+
+        good<type>("",          {});
+        good<type>(" ",         {});
+        good<type>("\t",        {});
+        good<type>(" \t",       {});
+        good<type>(",",         {});
+        good<type>(",,",        {});
+        good<type>(", ,",       {});
+        good<type>(",\t,",      {});
+        good<type>(", \t,",     {});
+        good<type>(", \t, ",    {});
+        good<type>(", \t,\t",   {});
+        good<type>(", \t, \t",  {});
+
+        good<type>("x",         {"x"});
+        good<type>(" x",        {"x"});
+        good<type>("x,,",       {"x"});
+        good<type>("x, ,",      {"x"});
+        good<type>("x,, ",      {"x"});
+        good<type>("x,,,",      {"x"});
+
+        good<type>("x,y",       {"x","y"});
+        good<type>("x ,y",      {"x","y"});
+        good<type>("x\t,y",     {"x","y"});
+        good<type>("x \t,y",    {"x","y"});
+        good<type>(" x,y",      {"x","y"});
+        good<type>(" x,y ",     {"x","y"});
+        good<type>(",x,y",      {"x","y"});
+        good<type>("x,y,",      {"x","y"});
+        good<type>(",,x,y",     {"x","y"});
+        good<type>(",x,,y",     {"x","y"});
+        good<type>(",x,y,",     {"x","y"});
+        good<type>("x ,, y",    {"x","y"});
+        good<type>("x , ,y",    {"x","y"});
+
+        good<type>("x,y,z",     {"x","y","z"});
+
+        bad<type>("(");
+        bad<type>("x(");
+        bad<type>("(x");
+        bad<type>(",(");
+        bad<type>("(,");
+        bad<type>("x,(");
+        bad<type>("(,x");
+        bad<type>("x y");
+    }
+
+    void
+    run()
+    {
+        testOptTokenList();
+        testParamList();
+        testExtList();
+        testTokenList();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,rfc7230);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/serializer.cpp b/src/boost/libs/beast/test/beast/http/serializer.cpp
new file mode 100644
index 000000000..4b14d63fc
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/serializer.cpp
@@ -0,0 +1,130 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/serializer.hpp>
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class serializer_test : public beast::unit_test::suite
+{
+public:
+    struct const_body
+    {
+        struct value_type{};
+
+        struct writer
+        {
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            writer(header<isRequest, Fields> const&, value_type const&);
+
+            void
+            init(error_code& ec);
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code&);
+        };
+    };
+
+    struct mutable_body
+    {
+        struct value_type{};
+
+        struct writer
+        {
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            writer(header<isRequest, Fields>&, value_type&);
+
+            void
+            init(error_code& ec);
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code&);
+        };
+    };
+
+    BOOST_STATIC_ASSERT(std::is_const<  serializer<
+        true, const_body>::value_type>::value);
+
+    BOOST_STATIC_ASSERT(! std::is_const<serializer<
+        true, mutable_body>::value_type>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<
+        serializer<true, const_body>,
+        message   <true, const_body>&>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<
+        serializer<true, const_body>,
+        message   <true, const_body> const&>::value);
+
+    BOOST_STATIC_ASSERT(std::is_constructible<
+        serializer<true, mutable_body>,
+        message   <true, mutable_body>&>::value);
+
+    BOOST_STATIC_ASSERT(! std::is_constructible<
+        serializer<true, mutable_body>,
+        message   <true, mutable_body> const&>::value);
+
+    struct lambda
+    {
+        std::size_t size;
+
+        template<class ConstBufferSequence>
+        void
+        operator()(error_code&,
+            ConstBufferSequence const& buffers)
+        {
+            size = buffer_bytes(buffers);
+        }
+    };
+
+    void
+    testWriteLimit()
+    {
+        auto const limit = 30;
+        lambda visit;
+        error_code ec;
+        response<string_body> res;
+        res.body().append(1000, '*');
+        serializer<false, string_body> sr{res};
+        sr.limit(limit);
+        for(;;)
+        {
+            sr.next(ec, visit);
+            BEAST_EXPECT(visit.size <= limit);
+            sr.consume(visit.size);
+            if(sr.is_done())
+                break;
+        }
+    }
+
+    void
+    run() override
+    {
+        testWriteLimit();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,serializer);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/span_body.cpp b/src/boost/libs/beast/test/beast/http/span_body.cpp
new file mode 100644
index 000000000..ab75857be
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/span_body.cpp
@@ -0,0 +1,81 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/span_body.hpp>
+
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/http/message.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+struct span_body_test
+    : public beast::unit_test::suite
+{
+    void
+    testSpanBody()
+    {
+        {
+            using B = span_body<char const>;
+            request<B> req;
+
+            BEAST_EXPECT(req.body().size() == 0);
+            BEAST_EXPECT(B::size(req.body()) == 0);
+
+            req.body() = B::value_type("xyz", 3);
+            BEAST_EXPECT(req.body().size() == 3);
+            BEAST_EXPECT(B::size(req.body()) == 3);
+
+            B::writer r{req, req.body()};
+            error_code ec;
+            r.init(ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            auto const buf = r.get(ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            if(! BEAST_EXPECT(buf != boost::none))
+                return;
+            BEAST_EXPECT(buffer_bytes(buf->first) == 3);
+            BEAST_EXPECT(! buf->second);
+        }
+        {
+            char buf[5] = {};
+            using B = span_body<char>;
+            request<B> req;
+            req.body() = span<char>{buf, sizeof(buf)};
+            B::reader w{req, req.body()};
+            error_code ec;
+            w.init(boost::none, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            w.put(net::const_buffer{
+                "123", 3}, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(buf[0] == '1');
+            BEAST_EXPECT(buf[1] == '2');
+            BEAST_EXPECT(buf[2] == '3');
+            w.put(net::const_buffer{
+                "456", 3}, ec);
+            BEAST_EXPECTS(ec == error::buffer_overflow, ec.message());
+        }
+    }
+
+    void
+    run() override
+    {
+        testSpanBody();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,span_body);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/status.cpp b/src/boost/libs/beast/test/beast/http/status.cpp
new file mode 100644
index 000000000..ea220736f
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/status.cpp
@@ -0,0 +1,180 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/status.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class status_test
+    : public beast::unit_test::suite
+{
+public:
+    void
+    testStatus()
+    {
+        auto const check = [&](status s, int i, status_class sc)
+            {
+                BEAST_EXPECT(int_to_status(i) == s);
+                BEAST_EXPECT(to_status_class(i) == sc);
+                BEAST_EXPECT(to_status_class(int_to_status(i)) == sc);
+            };
+        check(status::continue_                             ,100, status_class::informational);
+        check(status::switching_protocols                   ,101, status_class::informational);
+        check(status::processing                            ,102, status_class::informational);
+
+        check(status::ok                                    ,200, status_class::successful);
+        check(status::created                               ,201, status_class::successful);
+        check(status::accepted                              ,202, status_class::successful);
+        check(status::non_authoritative_information         ,203, status_class::successful);
+        check(status::no_content                            ,204, status_class::successful);
+        check(status::reset_content                         ,205, status_class::successful);
+        check(status::partial_content                       ,206, status_class::successful);
+        check(status::multi_status                          ,207, status_class::successful);
+        check(status::already_reported                      ,208, status_class::successful);
+        check(status::im_used                               ,226, status_class::successful);
+
+        check(status::multiple_choices                      ,300, status_class::redirection);
+        check(status::moved_permanently                     ,301, status_class::redirection);
+        check(status::found                                 ,302, status_class::redirection);
+        check(status::see_other                             ,303, status_class::redirection);
+        check(status::not_modified                          ,304, status_class::redirection);
+        check(status::use_proxy                             ,305, status_class::redirection);
+        check(status::temporary_redirect                    ,307, status_class::redirection);
+        check(status::permanent_redirect                    ,308, status_class::redirection);
+
+        check(status::bad_request                           ,400, status_class::client_error);
+        check(status::unauthorized                          ,401, status_class::client_error);
+        check(status::payment_required                      ,402, status_class::client_error);
+        check(status::forbidden                             ,403, status_class::client_error);
+        check(status::not_found                             ,404, status_class::client_error);
+        check(status::method_not_allowed                    ,405, status_class::client_error);
+        check(status::not_acceptable                        ,406, status_class::client_error);
+        check(status::proxy_authentication_required         ,407, status_class::client_error);
+        check(status::request_timeout                       ,408, status_class::client_error);
+        check(status::conflict                              ,409, status_class::client_error);
+        check(status::gone                                  ,410, status_class::client_error);
+        check(status::length_required                       ,411, status_class::client_error);
+        check(status::precondition_failed                   ,412, status_class::client_error);
+        check(status::payload_too_large                     ,413, status_class::client_error);
+        check(status::uri_too_long                          ,414, status_class::client_error);
+        check(status::unsupported_media_type                ,415, status_class::client_error);
+        check(status::range_not_satisfiable                 ,416, status_class::client_error);
+        check(status::expectation_failed                    ,417, status_class::client_error);
+        check(status::misdirected_request                   ,421, status_class::client_error);
+        check(status::unprocessable_entity                  ,422, status_class::client_error);
+        check(status::locked                                ,423, status_class::client_error);
+        check(status::failed_dependency                     ,424, status_class::client_error);
+        check(status::upgrade_required                      ,426, status_class::client_error);
+        check(status::precondition_required                 ,428, status_class::client_error);
+        check(status::too_many_requests                     ,429, status_class::client_error);
+        check(status::request_header_fields_too_large       ,431, status_class::client_error);
+        check(status::connection_closed_without_response    ,444, status_class::client_error);
+        check(status::unavailable_for_legal_reasons         ,451, status_class::client_error);
+        check(status::client_closed_request                 ,499, status_class::client_error);
+
+        check(status::internal_server_error                 ,500, status_class::server_error);
+        check(status::not_implemented                       ,501, status_class::server_error);
+        check(status::bad_gateway                           ,502, status_class::server_error);
+        check(status::service_unavailable                   ,503, status_class::server_error);
+        check(status::gateway_timeout                       ,504, status_class::server_error);
+        check(status::http_version_not_supported            ,505, status_class::server_error);
+        check(status::variant_also_negotiates               ,506, status_class::server_error);
+        check(status::insufficient_storage                  ,507, status_class::server_error);
+        check(status::loop_detected                         ,508, status_class::server_error);
+        check(status::not_extended                          ,510, status_class::server_error);
+        check(status::network_authentication_required       ,511, status_class::server_error);
+        check(status::network_connect_timeout_error         ,599, status_class::server_error);
+
+        BEAST_EXPECT(to_status_class(1) == status_class::unknown);
+        BEAST_EXPECT(to_status_class(status::unknown) == status_class::unknown);
+
+        auto const good =
+            [&](status v)
+            {
+                BEAST_EXPECT(obsolete_reason(v) != "Unknown Status");
+            };
+        good(status::continue_);
+        good(status::switching_protocols);
+        good(status::processing);
+        good(status::ok);
+        good(status::created);
+        good(status::accepted);
+        good(status::non_authoritative_information);
+        good(status::no_content);
+        good(status::reset_content);
+        good(status::partial_content);
+        good(status::multi_status);
+        good(status::already_reported);
+        good(status::im_used);
+        good(status::multiple_choices);
+        good(status::moved_permanently);
+        good(status::found);
+        good(status::see_other);
+        good(status::not_modified);
+        good(status::use_proxy);
+        good(status::temporary_redirect);
+        good(status::permanent_redirect);
+        good(status::bad_request);
+        good(status::unauthorized);
+        good(status::payment_required);
+        good(status::forbidden);
+        good(status::not_found);
+        good(status::method_not_allowed);
+        good(status::not_acceptable);
+        good(status::proxy_authentication_required);
+        good(status::request_timeout);
+        good(status::conflict);
+        good(status::gone);
+        good(status::length_required);
+        good(status::precondition_failed);
+        good(status::payload_too_large);
+        good(status::uri_too_long);
+        good(status::unsupported_media_type);
+        good(status::range_not_satisfiable);
+        good(status::expectation_failed);
+        good(status::misdirected_request);
+        good(status::unprocessable_entity);
+        good(status::locked);
+        good(status::failed_dependency);
+        good(status::upgrade_required);
+        good(status::precondition_required);
+        good(status::too_many_requests);
+        good(status::request_header_fields_too_large);
+        good(status::unavailable_for_legal_reasons);
+        good(status::internal_server_error);
+        good(status::not_implemented);
+        good(status::bad_gateway);
+        good(status::service_unavailable);
+        good(status::gateway_timeout);
+        good(status::http_version_not_supported);
+        good(status::variant_also_negotiates);
+        good(status::insufficient_storage);
+        good(status::loop_detected);
+        good(status::not_extended);
+        good(status::network_authentication_required);
+    }
+
+    void
+    run()
+    {
+        testStatus();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,status);
+
+} // http
+} // beast
+} // boost
+
diff --git a/src/boost/libs/beast/test/beast/http/string_body.cpp b/src/boost/libs/beast/test/beast/http/string_body.cpp
new file mode 100644
index 000000000..14f873b5f
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/string_body.cpp
@@ -0,0 +1,23 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/string_body.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+BOOST_STATIC_ASSERT(is_body<string_body>::value);
+BOOST_STATIC_ASSERT(is_body_writer<string_body>::value);
+BOOST_STATIC_ASSERT(is_body_reader<string_body>::value);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/test_parser.hpp b/src/boost/libs/beast/test/beast/http/test_parser.hpp
new file mode 100644
index 000000000..a12ad2b45
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/test_parser.hpp
@@ -0,0 +1,161 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_HTTP_TEST_PARSER_HPP
+#define BOOST_BEAST_HTTP_TEST_PARSER_HPP
+
+#include <boost/beast/http/basic_parser.hpp>
+#include <boost/beast/_experimental/test/fail_count.hpp>
+#include <string>
+#include <unordered_map>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+template<bool isRequest>
+class test_parser
+    : public basic_parser<isRequest>
+{
+    test::fail_count* fc_ = nullptr;
+
+public:
+    using mutable_buffers_type =
+        net::mutable_buffer;
+
+    int status = 0;
+    int version = 0;
+    std::string method;
+    std::string path;
+    std::string reason;
+    std::string body;
+    int got_on_begin       = 0;
+    int got_on_field       = 0;
+    int got_on_header      = 0;
+    int got_on_body        = 0;
+    int got_content_length = 0;
+    int got_on_chunk       = 0;
+    int got_on_complete    = 0;
+    std::unordered_map<
+        std::string, std::string> fields;
+
+    test_parser() = default;
+
+    explicit
+    test_parser(test::fail_count& fc)
+        : fc_(&fc)
+    {
+    }
+
+    void
+    on_request_impl(verb, string_view method_str_,
+        string_view path_, int version_, error_code& ec)
+    {
+        method = std::string(
+            method_str_.data(), method_str_.size());
+        path = std::string(
+            path_.data(), path_.size());
+        version = version_;
+        ++got_on_begin;
+        if(fc_)
+            fc_->fail(ec);
+    }
+
+    void
+    on_response_impl(int code,
+        string_view reason_,
+            int version_, error_code& ec)
+    {
+        status = code;
+        reason = std::string(
+            reason_.data(), reason_.size());
+        version = version_;
+        ++got_on_begin;
+        if(fc_)
+            fc_->fail(ec);
+    }
+
+    void
+    on_field_impl(field, string_view name,
+        string_view value, error_code& ec)
+    {
+        ++got_on_field;
+        if(fc_)
+            fc_->fail(ec);
+        fields[std::string(name)] = std::string(value);
+    }
+
+    void
+    on_header_impl(error_code& ec)
+    {
+        ++got_on_header;
+        if(fc_)
+            fc_->fail(ec);
+    }
+
+    void
+    on_body_init_impl(
+        boost::optional<std::uint64_t> const& content_length_,
+        error_code& ec)
+    {
+        ++got_on_body;
+        got_content_length =
+            static_cast<bool>(content_length_);
+        if(fc_)
+            fc_->fail(ec);
+    }
+
+    std::size_t
+    on_body_impl(string_view s,
+        error_code& ec)
+    {
+        body.append(s.data(), s.size());
+        if(fc_)
+            fc_->fail(ec);
+        return s.size();
+    }
+
+    void
+    on_chunk_header_impl(
+        std::uint64_t,
+        string_view,
+        error_code& ec)
+    {
+        ++got_on_chunk;
+        if(fc_)
+            fc_->fail(ec);
+    }
+
+    std::size_t
+    on_chunk_body_impl(
+        std::uint64_t,
+        string_view s,
+        error_code& ec)
+    {
+        body.append(s.data(), s.size());
+        if(fc_)
+            fc_->fail(ec);
+        return s.size();
+    }
+
+
+    void
+    on_finish_impl(error_code& ec)
+    {
+        ++got_on_complete;
+        if(fc_)
+            fc_->fail(ec);
+    }
+};
+
+} // http
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/http/type_traits.cpp b/src/boost/libs/beast/test/beast/http/type_traits.cpp
new file mode 100644
index 000000000..fef17fb69
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/type_traits.cpp
@@ -0,0 +1,156 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/type_traits.hpp>
+
+#include <boost/beast/http/empty_body.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_cat.hpp>
+#include <boost/beast/core/buffers_suffix.hpp>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+// Buffers
+
+BOOST_STATIC_ASSERT(net::is_const_buffer_sequence<chunk_crlf>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<
+    buffers_type<chunk_crlf>,
+    net::const_buffer>::value);
+
+BOOST_STATIC_ASSERT(! std::is_same<
+    buffers_type<chunk_crlf>,
+    net::mutable_buffer>::value);
+
+BOOST_STATIC_ASSERT(std::is_convertible<
+    decltype(*net::buffer_sequence_begin(std::declval<chunk_crlf const&>())),
+    net::const_buffer
+        >::value);
+
+BOOST_STATIC_ASSERT(! std::is_convertible<
+    decltype(*net::buffer_sequence_begin(std::declval<chunk_crlf const&>())),
+    net::mutable_buffer
+        >::value);
+
+BOOST_STATIC_ASSERT(net::is_const_buffer_sequence<
+    buffers_cat_view<net::const_buffer, chunk_crlf>
+        >::value);
+
+BOOST_STATIC_ASSERT(std::is_same<
+    buffers_type<buffers_cat_view<net::const_buffer, chunk_crlf>>,
+    net::const_buffer>::value);
+
+BOOST_STATIC_ASSERT(! std::is_same<
+    buffers_type<buffers_cat_view<net::const_buffer, chunk_crlf>>,
+    net::mutable_buffer>::value);
+
+using bs_t = buffers_suffix<buffers_cat_view<net::const_buffer, chunk_crlf>>;
+
+BOOST_STATIC_ASSERT(std::is_same<
+    buffers_type<bs_t>,
+    net::const_buffer>::value);
+
+BOOST_STATIC_ASSERT(! std::is_same<
+    buffers_type<bs_t>,
+    net::mutable_buffer>::value);
+
+BOOST_STATIC_ASSERT(std::is_convertible<
+    decltype(*std::declval<bs_t const&>().begin()),
+    net::const_buffer>::value);
+
+BOOST_STATIC_ASSERT(! std::is_convertible<
+    decltype(*std::declval<bs_t const&>().begin()),
+    net::mutable_buffer>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<
+    buffers_iterator_type<bs_t>,
+    decltype(std::declval<bs_t const&>().begin())>::value);
+
+using iter_t = bs_t::const_iterator;
+
+BOOST_STATIC_ASSERT(std::is_same<
+    net::const_buffer,
+    decltype(std::declval<iter_t const&>().operator*())
+        >::value);
+
+BOOST_STATIC_ASSERT(! std::is_same<
+    net::mutable_buffer,
+    decltype(std::declval<iter_t const&>().operator*())
+        >::value);
+
+BOOST_STATIC_ASSERT(std::is_constructible<
+    net::const_buffer,
+    decltype(std::declval<iter_t const&>().operator*())>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<
+    net::const_buffer, buffers_suffix<
+        buffers_cat_view<net::const_buffer, net::const_buffer, chunk_crlf>
+            >::const_iterator::value_type>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<
+    net::const_buffer, buffers_type<
+    std::decay<buffers_cat_view<net::const_buffer, net::const_buffer, chunk_crlf>>::type
+        >>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<net::const_buffer, decltype(
+    std::declval<buffers_suffix<buffers_cat_view<
+        net::const_buffer, net::const_buffer, chunk_crlf>
+            >::const_iterator const&>().operator*())>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<net::const_buffer, decltype(
+    std::declval<buffers_suffix<buffers_cat_view<
+        net::const_buffer, net::const_buffer, chunk_crlf>
+            >::const_iterator const&>().operator*())>::value);
+
+BOOST_STATIC_ASSERT(std::is_same<net::const_buffer, decltype(
+    std::declval<buffers_suffix<
+        buffers_cat_view<
+            beast::detail::buffers_ref<buffers_cat_view<
+                net::const_buffer,
+                net::const_buffer,
+                net::const_buffer,
+                http::basic_fields<
+                    std::allocator<char>>::writer::field_range,
+                http::chunk_crlf> >,
+            http::detail::chunk_size,
+            net::const_buffer,
+            http::chunk_crlf,
+            http::basic_string_body<
+                char, std::char_traits<char>,
+                std::allocator<char>>::writer::const_buffers_type,
+            http::chunk_crlf,
+            net::const_buffer,
+            net::const_buffer,
+            http::chunk_crlf>>::const_iterator const&>(
+                ).operator*())>::value);
+
+// Body
+
+BOOST_STATIC_ASSERT(! is_body_writer<int>::value);
+
+BOOST_STATIC_ASSERT(is_body_writer<empty_body>::value);
+
+BOOST_STATIC_ASSERT(! is_body_reader<std::string>::value);
+
+namespace {
+
+struct not_fields {};
+
+} // (anonymous)
+
+BOOST_STATIC_ASSERT(! is_fields<not_fields>::value);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/vector_body.cpp b/src/boost/libs/beast/test/beast/http/vector_body.cpp
new file mode 100644
index 000000000..142d17e18
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/vector_body.cpp
@@ -0,0 +1,30 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/vector_body.hpp>
+#include <cstddef>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+BOOST_STATIC_ASSERT(is_body<vector_body<char>>::value);
+BOOST_STATIC_ASSERT(is_body_writer<vector_body<char>>::value);
+BOOST_STATIC_ASSERT(is_body_reader<vector_body<char>>::value);
+
+#if __cpp_lib_byte >= 201603
+BOOST_STATIC_ASSERT(is_body<vector_body<std::byte>>::value);
+BOOST_STATIC_ASSERT(is_body_writer<vector_body<std::byte>>::value);
+BOOST_STATIC_ASSERT(is_body_reader<vector_body<std::byte>>::value);
+#endif
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/verb.cpp b/src/boost/libs/beast/test/beast/http/verb.cpp
new file mode 100644
index 000000000..46ef531f0
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/verb.cpp
@@ -0,0 +1,131 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/verb.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class verb_test
+    : public beast::unit_test::suite
+{
+public:
+    void
+    testVerb()
+    {
+        auto const good =
+            [&](verb v)
+            {
+                BEAST_EXPECT(string_to_verb(to_string(v)) == v);
+            };
+
+        good(verb::unknown);
+
+        good(verb::delete_);
+        good(verb::get);
+        good(verb::head);
+        good(verb::post);
+        good(verb::put);
+        good(verb::connect);
+        good(verb::options);
+        good(verb::trace);
+        good(verb::copy);
+        good(verb::lock);
+        good(verb::mkcol);
+        good(verb::move);
+        good(verb::propfind);
+        good(verb::proppatch);
+        good(verb::search);
+        good(verb::unlock);
+        good(verb::bind);
+        good(verb::rebind);
+        good(verb::unbind);
+        good(verb::acl);
+        good(verb::report);
+        good(verb::mkactivity);
+        good(verb::checkout);
+        good(verb::merge);
+        good(verb::msearch);
+        good(verb::notify);
+        good(verb::subscribe);
+        good(verb::unsubscribe);
+        good(verb::patch);
+        good(verb::purge);
+        good(verb::mkcalendar);
+        good(verb::link);
+        good(verb::unlink);
+
+        auto const bad =
+            [&](string_view s)
+            {
+                auto const v = string_to_verb(s);
+                BEAST_EXPECTS(v == verb::unknown, to_string(v));
+            };
+
+        bad("AC_");
+        bad("BIN_");
+        bad("CHECKOU_");
+        bad("CONNEC_");
+        bad("COP_");
+        bad("DELET_");
+        bad("GE_");
+        bad("HEA_");
+        bad("LIN_");
+        bad("LOC_");
+        bad("M-SEARC_");
+        bad("MERG_");
+        bad("MKACTIVIT_");
+        bad("MKCALENDA_");
+        bad("MKCO_");
+        bad("MOV_");
+        bad("NOTIF_");
+        bad("OPTION_");
+        bad("PATC_");
+        bad("POS_");
+        bad("PROPFIN_");
+        bad("PROPPATC_");
+        bad("PURG_");
+        bad("PU_");
+        bad("REBIN_");
+        bad("REPOR_");
+        bad("SEARC_");
+        bad("SUBSCRIB_");
+        bad("TRAC_");
+        bad("UNBIN_");
+        bad("UNLIN_");
+        bad("UNLOC_");
+        bad("UNSUBSCRIB_");
+
+        try
+        {
+            to_string(static_cast<verb>(-1));
+            fail("", __FILE__, __LINE__);
+        }
+        catch(std::exception const&)
+        {
+            pass();
+        }
+    }
+
+    void
+    run()
+    {
+        testVerb();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,verb);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/http/write.cpp b/src/boost/libs/beast/test/beast/http/write.cpp
new file mode 100644
index 000000000..f6cfadea2
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/http/write.cpp
@@ -0,0 +1,1027 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/http/write.hpp>
+
+#include <boost/beast/http/empty_body.hpp>
+#include <boost/beast/http/fields.hpp>
+#include <boost/beast/http/message.hpp>
+#include <boost/beast/http/read.hpp>
+#include <boost/beast/http/string_body.hpp>
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/error.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/test/yield_to.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/error.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+#include <sstream>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class write_test
+    : public beast::unit_test::suite
+    , public test::enable_yield_to
+{
+public:
+    struct unsized_body
+    {
+        using value_type = std::string;
+
+        class writer
+        {
+            value_type const& body_;
+
+        public:
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            writer(
+                header<isRequest, Fields> const&,
+                value_type const& b)
+                : body_(b)
+            {
+            }
+
+            void
+            init(error_code& ec)
+            {
+                ec = {};
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code& ec)
+            {
+                ec = {};
+                return {{const_buffers_type{
+                    body_.data(), body_.size()}, false}};
+            }
+        };
+    };
+
+    template<
+        bool isSplit,
+        bool isFinalEmpty
+    >
+    struct test_body
+    {
+        struct value_type
+        {
+            std::string s;
+            bool mutable read = false;
+        };
+
+        class writer
+        {
+            int step_ = 0;
+            value_type const& body_;
+
+        public:
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            writer(
+                header<isRequest, Fields> const&,
+                value_type const& b)
+                : body_(b)
+            {
+            }
+
+            void
+            init(error_code& ec)
+            {
+                ec = {};
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code& ec)
+            {
+                ec = {};
+                body_.read = true;
+                return get(
+                    std::integral_constant<bool, isSplit>{},
+                    std::integral_constant<bool, isFinalEmpty>{});
+            }
+
+        private:
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(
+                std::false_type,    // isSplit
+                std::false_type)    // isFinalEmpty
+            {
+                if(body_.s.empty())
+                    return boost::none;
+                return {{net::buffer(
+                    body_.s.data(), body_.s.size()), false}};
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(
+                std::false_type,    // isSplit
+                std::true_type)     // isFinalEmpty
+            {
+                if(body_.s.empty())
+                    return boost::none;
+                switch(step_)
+                {
+                case 0:
+                    step_ = 1;
+                    return {{net::buffer(
+                        body_.s.data(), body_.s.size()), true}};
+                default:
+                    return boost::none;
+                }
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(
+                std::true_type,     // isSplit
+                std::false_type)    // isFinalEmpty
+            {
+                auto const n = (body_.s.size() + 1) / 2;
+                switch(step_)
+                {
+                case 0:
+                    if(n == 0)
+                        return boost::none;
+                    step_ = 1;
+                    return {{net::buffer(body_.s.data(), n),
+                        body_.s.size() > 1}};
+                default:
+                    return {{net::buffer(body_.s.data() + n,
+                        body_.s.size() - n), false}};
+                }
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(
+                std::true_type,     // isSplit
+                std::true_type)     // isFinalEmpty
+            {
+                auto const n = (body_.s.size() + 1) / 2;
+                switch(step_)
+                {
+                case 0:
+                    if(n == 0)
+                        return boost::none;
+                    step_ = body_.s.size() > 1 ? 1 : 2;
+                    return {{net::buffer(body_.s.data(), n), true}};
+                case 1:
+                    BOOST_ASSERT(body_.s.size() > 1);
+                    step_ = 2;
+                    return {{net::buffer(body_.s.data() + n,
+                        body_.s.size() - n), true}};
+                default:
+                    return boost::none;
+                }
+            }
+        };
+    };
+
+    struct fail_body
+    {
+        class writer;
+
+        class value_type
+        {
+            friend class writer;
+
+            std::string s_;
+            test::fail_count& fc_;
+
+        public:
+            explicit
+            value_type(test::fail_count& fc)
+                : fc_(fc)
+            {
+            }
+
+            value_type&
+            operator=(std::string s)
+            {
+                s_ = std::move(s);
+                return *this;
+            }
+        };
+
+        class writer
+        {
+            std::size_t n_ = 0;
+            value_type const& body_;
+
+        public:
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            explicit
+            writer(header<isRequest, Fields> const&, value_type const& b)
+                : body_(b)
+            {
+            }
+
+            void
+            init(error_code& ec)
+            {
+                body_.fc_.fail(ec);
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code& ec)
+            {
+                if(body_.fc_.fail(ec))
+                    return boost::none;
+                if(n_ >= body_.s_.size())
+                    return boost::none;
+                return {{const_buffers_type{
+                    body_.s_.data() + n_++, 1}, true}};
+            }
+        };
+    };
+
+    template<bool isRequest, class Body, class Fields>
+    static
+    std::string
+    to_string(message<isRequest, Body, Fields> const& m)
+    {
+        std::stringstream ss;
+        ss << m;
+        return ss.str();
+    }
+
+    template<bool isRequest>
+    bool
+    equal_body(string_view sv, string_view body)
+    {
+        test::stream ts{ioc_, sv}, tr{ioc_};
+        ts.connect(tr);
+        message<isRequest, string_body, fields> m;
+        multi_buffer b;
+        ts.close_remote();
+        try
+        {
+            read(ts, b, m);
+            return m.body() == body;
+        }
+        catch(std::exception const& e)
+        {
+            log << "equal_body: " << e.what() << std::endl;
+            return false;
+        }
+    }
+
+    template<bool isRequest, class Body, class Fields>
+    std::string
+    str(message<isRequest, Body, Fields> const& m)
+    {
+        test::stream ts{ioc_}, tr{ioc_};
+        ts.connect(tr);
+        error_code ec;
+        write(ts, m, ec);
+        if(ec && ec != error::end_of_stream)
+            BOOST_THROW_EXCEPTION(system_error{ec});
+        return std::string(tr.str());
+    }
+
+    void
+    testAsyncWrite(yield_context do_yield)
+    {
+        {
+            response<string_body> m;
+            m.version(10);
+            m.result(status::ok);
+            m.set(field::server, "test");
+            m.set(field::content_length, "5");
+            m.body() = "*****";
+            error_code ec;
+            test::stream ts{ioc_}, tr{ioc_};
+            ts.connect(tr);
+            async_write(ts, m, do_yield[ec]);
+            BEAST_EXPECT(! m.keep_alive());
+            if(BEAST_EXPECTS(! ec, ec.message()))
+                BEAST_EXPECT(tr.str() ==
+                    "HTTP/1.0 200 OK\r\n"
+                    "Server: test\r\n"
+                    "Content-Length: 5\r\n"
+                    "\r\n"
+                    "*****");
+        }
+        {
+            response<string_body> m;
+            m.version(11);
+            m.result(status::ok);
+            m.set(field::server, "test");
+            m.set(field::transfer_encoding, "chunked");
+            m.body() = "*****";
+            error_code ec;
+            test::stream ts{ioc_}, tr{ioc_};
+            ts.connect(tr);
+            async_write(ts, m, do_yield[ec]);
+            if(BEAST_EXPECTS(! ec, ec.message()))
+                BEAST_EXPECT(tr.str() ==
+                    "HTTP/1.1 200 OK\r\n"
+                    "Server: test\r\n"
+                    "Transfer-Encoding: chunked\r\n"
+                    "\r\n"
+                    "5\r\n"
+                    "*****\r\n"
+                    "0\r\n\r\n");
+        }
+    }
+
+    void
+    testFailures(yield_context do_yield)
+    {
+        static std::size_t constexpr limit = 100;
+        std::size_t n;
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc}, tr{ioc_};
+            ts.connect(tr);
+            request<fail_body> m(verb::get, "/", 10, fc);
+            m.set(field::user_agent, "test");
+            m.set(field::connection, "keep-alive");
+            m.set(field::content_length, "5");
+            m.body() = "*****";
+            try
+            {
+                write(ts, m);
+                BEAST_EXPECT(tr.str() ==
+                    "GET / HTTP/1.0\r\n"
+                    "User-Agent: test\r\n"
+                    "Connection: keep-alive\r\n"
+                    "Content-Length: 5\r\n"
+                    "\r\n"
+                    "*****"
+                );
+                pass();
+                break;
+            }
+            catch(std::exception const&)
+            {
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc}, tr{ioc_};
+            ts.connect(tr);
+            request<fail_body> m{verb::get, "/", 10, fc};
+            m.set(field::user_agent, "test");
+            m.set(field::transfer_encoding, "chunked");
+            m.body() = "*****";
+            error_code ec = test::error::test_failure;
+            write(ts, m, ec);
+            if(! ec)
+            {
+                BEAST_EXPECT(! m.keep_alive());
+                BEAST_EXPECT(tr.str() ==
+                    "GET / HTTP/1.0\r\n"
+                    "User-Agent: test\r\n"
+                    "Transfer-Encoding: chunked\r\n"
+                    "\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "0\r\n\r\n"
+                );
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc}, tr{ioc_};
+            ts.connect(tr);
+            request<fail_body> m{verb::get, "/", 10, fc};
+            m.set(field::user_agent, "test");
+            m.set(field::transfer_encoding, "chunked");
+            m.body() = "*****";
+            error_code ec = test::error::test_failure;
+            async_write(ts, m, do_yield[ec]);
+            if(! ec)
+            {
+                BEAST_EXPECT(! m.keep_alive());
+                BEAST_EXPECT(tr.str() ==
+                    "GET / HTTP/1.0\r\n"
+                    "User-Agent: test\r\n"
+                    "Transfer-Encoding: chunked\r\n"
+                    "\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "1\r\n*\r\n"
+                    "0\r\n\r\n"
+                );
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc}, tr{ioc_};
+            ts.connect(tr);
+            request<fail_body> m{verb::get, "/", 10, fc};
+            m.set(field::user_agent, "test");
+            m.set(field::connection, "keep-alive");
+            m.set(field::content_length, "5");
+            m.body() = "*****";
+            error_code ec = test::error::test_failure;
+            write(ts, m, ec);
+            if(! ec)
+            {
+                BEAST_EXPECT(tr.str() ==
+                    "GET / HTTP/1.0\r\n"
+                    "User-Agent: test\r\n"
+                    "Connection: keep-alive\r\n"
+                    "Content-Length: 5\r\n"
+                    "\r\n"
+                    "*****"
+                );
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc(n);
+            test::stream ts{ioc_, fc}, tr{ioc_};
+            ts.connect(tr);
+            request<fail_body> m{verb::get, "/", 10, fc};
+            m.set(field::user_agent, "test");
+            m.set(field::connection, "keep-alive");
+            m.set(field::content_length, "5");
+            m.body() = "*****";
+            error_code ec = test::error::test_failure;
+            async_write(ts, m, do_yield[ec]);
+            if(! ec)
+            {
+                BEAST_EXPECT(tr.str() ==
+                    "GET / HTTP/1.0\r\n"
+                    "User-Agent: test\r\n"
+                    "Connection: keep-alive\r\n"
+                    "Content-Length: 5\r\n"
+                    "\r\n"
+                    "*****"
+                );
+                break;
+            }
+        }
+        BEAST_EXPECT(n < limit);
+    }
+
+    void
+    testOutput()
+    {
+        // auto content-length HTTP/1.0
+        {
+            request<string_body> m;
+            m.method(verb::get);
+            m.target("/");
+            m.version(10);
+            m.set(field::user_agent, "test");
+            m.body() = "*";
+            m.prepare_payload();
+            BEAST_EXPECT(str(m) ==
+                "GET / HTTP/1.0\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 1\r\n"
+                "\r\n"
+                "*"
+            );
+        }
+        // no content-length HTTP/1.0
+        {
+            request<unsized_body> m;
+            m.method(verb::get);
+            m.target("/");
+            m.version(10);
+            m.set(field::user_agent, "test");
+            m.body() = "*";
+            m.prepare_payload();
+            test::stream ts{ioc_}, tr{ioc_};
+            ts.connect(tr);
+            error_code ec;
+            write(ts, m, ec);
+            BEAST_EXPECT(! m.keep_alive());
+            BEAST_EXPECTS(! ec, ec.message());
+            BEAST_EXPECT(tr.str() ==
+                "GET / HTTP/1.0\r\n"
+                "User-Agent: test\r\n"
+                "\r\n"
+                "*"
+            );
+        }
+        // auto content-length HTTP/1.1
+        {
+            request<string_body> m;
+            m.method(verb::get);
+            m.target("/");
+            m.version(11);
+            m.set(field::user_agent, "test");
+            m.body() = "*";
+            m.prepare_payload();
+            BEAST_EXPECT(str(m) ==
+                "GET / HTTP/1.1\r\n"
+                "User-Agent: test\r\n"
+                "Content-Length: 1\r\n"
+                "\r\n"
+                "*"
+            );
+        }
+        // no content-length HTTP/1.1
+        {
+            request<unsized_body> m;
+            m.method(verb::get);
+            m.target("/");
+            m.version(11);
+            m.set(field::user_agent, "test");
+            m.body() = "*";
+            m.prepare_payload();
+            test::stream ts{ioc_}, tr{ioc_};
+            ts.connect(tr);
+            error_code ec;
+            write(ts, m, ec);
+            BEAST_EXPECT(tr.str() ==
+                "GET / HTTP/1.1\r\n"
+                "User-Agent: test\r\n"
+                "Transfer-Encoding: chunked\r\n"
+                "\r\n"
+                "1\r\n"
+                "*\r\n"
+                "0\r\n\r\n"
+            );
+        }
+    }
+
+    void test_std_ostream()
+    {
+        // Conversion to std::string via operator<<
+        {
+            request<string_body> m;
+            m.method(verb::get);
+            m.target("/");
+            m.version(11);
+            m.set(field::user_agent, "test");
+            m.body() = "*";
+            BEAST_EXPECT(to_string(m) ==
+                "GET / HTTP/1.1\r\nUser-Agent: test\r\n\r\n*");
+        }
+
+        // Output to std::ostream
+        {
+            request<string_body> m{verb::get, "/", 11};
+            std::stringstream ss;
+            ss << m;
+            BEAST_EXPECT(ss.str() ==
+                "GET / HTTP/1.1\r\n"
+                "\r\n");
+        }
+
+        // Output header to std::ostream
+        {
+            request<string_body> m{verb::get, "/", 11};
+            std::stringstream ss;
+            ss << m.base();
+            BEAST_EXPECT(ss.str() ==
+                "GET / HTTP/1.1\r\n"
+                "\r\n");
+        }
+    }
+
+    // Ensure completion handlers are not leaked
+    struct handler
+    {
+        static std::atomic<std::size_t>&
+        count() { static std::atomic<std::size_t> n; return n; }
+        handler() { ++count(); }
+        ~handler() { --count(); }
+        handler(handler const&) { ++count(); }
+        void operator()(error_code const&, std::size_t) const {}
+    };
+
+    void
+    testIoService()
+    {
+        {
+            // Make sure handlers are not destroyed
+            // after calling io_context::stop
+            net::io_context ioc;
+            test::stream ts{ioc};
+            BEAST_EXPECT(handler::count() == 0);
+            request<string_body> m;
+            m.method(verb::get);
+            m.version(11);
+            m.target("/");
+            m.set("Content-Length", 5);
+            m.body() = "*****";
+            async_write(ts, m, handler{});
+            BEAST_EXPECT(handler::count() > 0);
+            ioc.stop();
+            BEAST_EXPECT(handler::count() > 0);
+            ioc.restart();
+            BEAST_EXPECT(handler::count() > 0);
+            ioc.run_one();
+            BEAST_EXPECT(handler::count() == 0);
+        }
+        {
+            // Make sure uninvoked handlers are
+            // destroyed when calling ~io_context
+            {
+                net::io_context ioc;
+                test::stream ts{ioc}, tr{ioc};
+                ts.connect(tr);
+                BEAST_EXPECT(handler::count() == 0);
+                request<string_body> m;
+                m.method(verb::get);
+                m.version(11);
+                m.target("/");
+                m.set("Content-Length", 5);
+                m.body() = "*****";
+                async_write(ts, m, handler{});
+                BEAST_EXPECT(handler::count() > 0);
+            }
+            BEAST_EXPECT(handler::count() == 0);
+        }
+    }
+
+    template<
+        class Stream,
+        bool isRequest, class Body, class Fields>
+    void
+    do_write(
+        Stream& stream,
+        message<isRequest, Body, Fields> const& m,
+        error_code& ec)
+    {
+        serializer<isRequest, Body, Fields> sr{m};
+        for(;;)
+        {
+            write_some(stream, sr, ec);
+            if(ec)
+                return;
+            if(sr.is_done())
+                break;
+        }
+    }
+
+    template<
+        class Stream,
+        bool isRequest, class Body, class Fields>
+    void
+    do_async_write(
+        Stream& stream,
+        message<isRequest, Body, Fields> const& m,
+        error_code& ec,
+        yield_context yield)
+    {
+        serializer<isRequest, Body, Fields> sr{m};
+        for(;;)
+        {
+            async_write_some(stream, sr, yield[ec]);
+            if(ec)
+                return;
+            if(sr.is_done())
+                break;
+        }
+    }
+
+    template<class Body>
+    void
+    testWriteStream(net::yield_context yield)
+    {
+        test::stream ts{ioc_}, tr{ioc_};
+        ts.connect(tr);
+        ts.write_size(3);
+
+        response<Body> m0;
+        m0.version(11);
+        m0.result(status::ok);
+        m0.reason("OK");
+        m0.set(field::server, "test");
+        m0.body().s = "Hello, world!\n";
+
+        {
+            std::string const result =
+                "HTTP/1.1 200 OK\r\n"
+                "Server: test\r\n"
+                "\r\n"
+                "Hello, world!\n";
+            {
+                auto m = m0;
+                error_code ec;
+                do_write(ts, m, ec);
+                BEAST_EXPECT(tr.str() == result);
+                BEAST_EXPECT(equal_body<false>(
+                    tr.str(), m.body().s));
+                tr.clear();
+            }
+            {
+                auto m = m0;
+                error_code ec;
+                do_async_write(ts, m, ec, yield);
+                BEAST_EXPECT(tr.str() == result);
+                BEAST_EXPECT(equal_body<false>(
+                    tr.str(), m.body().s));
+                tr.clear();
+            }
+            {
+                auto m = m0;
+                response_serializer<Body, fields> sr{m};
+                sr.split(true);
+                for(;;)
+                {
+                    write_some(ts, sr);
+                    if(sr.is_header_done())
+                        break;
+                }
+                BEAST_EXPECT(! m.body().read);
+                tr.clear();
+            }
+            {
+                auto m = m0;
+                response_serializer<Body, fields> sr{m};
+                sr.split(true);
+                for(;;)
+                {
+                    async_write_some(ts, sr, yield);
+                    if(sr.is_header_done())
+                        break;
+                }
+                BEAST_EXPECT(! m.body().read);
+                tr.clear();
+            }
+        }
+        {
+            m0.set("Transfer-Encoding", "chunked");
+            {
+                auto m = m0;
+                error_code ec;
+                do_write(ts, m, ec);
+                BEAST_EXPECT(equal_body<false>(
+                    tr.str(), m.body().s));
+                tr.clear();
+            }
+            {
+                auto m = m0;
+                error_code ec;
+                do_async_write(ts, m, ec, yield);
+                BEAST_EXPECT(equal_body<false>(
+                    tr.str(), m.body().s));
+                tr.clear();
+            }
+            {
+                auto m = m0;
+                response_serializer<Body, fields> sr{m};
+                sr.split(true);
+                for(;;)
+                {
+                    write_some(ts, sr);
+                    if(sr.is_header_done())
+                        break;
+                }
+                BEAST_EXPECT(! m.body().read);
+                tr.clear();
+            }
+            {
+                auto m = m0;
+                response_serializer<Body, fields> sr{m};
+                sr.split(true);
+                for(;;)
+                {
+                    async_write_some(ts, sr, yield);
+                    if(sr.is_header_done())
+                        break;
+                }
+                BEAST_EXPECT(! m.body().read);
+                tr.clear();
+            }
+        }
+    }
+
+    void
+    testIssue655()
+    {
+        net::io_context ioc;
+        test::stream ts{ioc}, tr{ioc};
+        ts.connect(tr);
+        response<empty_body> res;
+        res.chunked(true);
+        response_serializer<empty_body> sr{res};
+        async_write_header(ts, sr,
+            [&](error_code const&, std::size_t)
+            {
+            });
+        ioc.run();
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    testAsioHandlerInvoke()
+    {
+        using strand = net::strand<
+            net::io_context::executor_type>;
+
+        // make sure things compile, also can set a
+        // breakpoint in asio_handler_invoke to make sure
+        // it is instantiated.
+        {
+            net::io_context ioc;
+            strand s{ioc.get_executor()};
+            test::stream ts{ioc};
+            flat_buffer b;
+            request<empty_body> m;
+            request_serializer<empty_body, fields> sr{m};
+            async_write_some(ts, sr,
+                net::bind_executor(
+                    s, copyable_handler{}));
+        }
+        {
+            net::io_context ioc;
+            strand s{ioc.get_executor()};
+            test::stream ts{ioc};
+            flat_buffer b;
+            request<empty_body> m;
+            request_serializer<empty_body, fields> sr{m};
+            async_write(ts, sr,
+                net::bind_executor(
+                    s, copyable_handler{}));
+        }
+        {
+            net::io_context ioc;
+            strand s{ioc.get_executor()};
+            test::stream ts{ioc};
+            flat_buffer b;
+            request<empty_body> m;
+            async_write(ts, m,
+                net::bind_executor(
+                    s, copyable_handler{}));
+        }
+    }
+
+    struct const_body_writer
+    {
+        struct value_type{};
+
+        struct writer
+        {
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            writer(
+                header<isRequest, Fields> const&,
+                value_type const&)
+            {
+            }
+
+            void
+            init(error_code& ec)
+            {
+                ec = {};
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code& ec)
+            {
+                ec = {};
+                return {{const_buffers_type{"", 0}, false}};
+            }
+        };
+    };
+
+    struct mutable_body_writer
+    {
+        struct value_type{};
+
+        struct writer
+        {
+            using const_buffers_type =
+                net::const_buffer;
+
+            template<bool isRequest, class Fields>
+            writer(
+                header<isRequest, Fields>&,
+                value_type&)
+            {
+            }
+
+            void
+            init(error_code& ec)
+            {
+                ec = {};
+            }
+
+            boost::optional<std::pair<const_buffers_type, bool>>
+            get(error_code& ec)
+            {
+                ec = {};
+                return {{const_buffers_type{"", 0}, false}};
+            }
+        };
+    };
+
+    void
+    testBodyWriters()
+    {
+        {
+            test::stream s{ioc_};
+            message<true, const_body_writer> m;
+            try
+            {
+                write(s, m);
+            }
+            catch(std::exception const&)
+            {
+            }
+        }
+        {
+            error_code ec;
+            test::stream s{ioc_};
+            message<true, const_body_writer> m;
+            write(s, m, ec);
+        }
+        {
+            test::stream s{ioc_};
+            message<true, mutable_body_writer> m;
+            try
+            {
+                write(s, m);
+            }
+            catch(std::exception const&)
+            {
+            }
+        }
+        {
+            error_code ec;
+            test::stream s{ioc_};
+            message<true, mutable_body_writer> m;
+            write(s, m, ec);
+        }
+    }
+
+    void
+    run() override
+    {
+        testIssue655();
+        yield_to(
+            [&](yield_context yield)
+            {
+                testAsyncWrite(yield);
+                testFailures(yield);
+            });
+        testOutput();
+        test_std_ostream();
+        testIoService();
+        yield_to(
+            [&](yield_context yield)
+            {
+                testWriteStream<test_body<false, false>>(yield);
+                testWriteStream<test_body<false,  true>>(yield);
+                testWriteStream<test_body< true, false>>(yield);
+                testWriteStream<test_body< true,  true>>(yield);
+            });
+        testAsioHandlerInvoke();
+        testBodyWriters();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,http,write);
+
+} // http
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/ssl.cpp b/src/boost/libs/beast/test/beast/ssl.cpp
new file mode 100644
index 000000000..f0eec1593
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/ssl.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// If including Windows.h generates errors, it
+// means that min/max macros are being substituted.
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/ssl.hpp>
diff --git a/src/boost/libs/beast/test/beast/ssl/CMakeLists.txt b/src/boost/libs/beast/test/beast/ssl/CMakeLists.txt
new file mode 100644
index 000000000..0a6c1a120
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/ssl/CMakeLists.txt
@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/beast/ssl "/")
+
+add_executable (tests-beast-ssl
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    ssl_stream.cpp
+)
+
+target_link_libraries(tests-beast-ssl
+    lib-asio
+    lib-asio-ssl
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-beast-ssl PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/ssl/Jamfile b/src/boost/libs/beast/test/beast/ssl/Jamfile
new file mode 100644
index 000000000..afb789e68
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/ssl/Jamfile
@@ -0,0 +1,40 @@
+#
+# Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    ssl_stream.cpp
+    ;
+
+local RUN_TESTS ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f)
+        /boost/beast//lib-asio-ssl
+        /boost/beast/test//lib-test
+    ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
+
+exe fat-tests
+    :
+    $(SOURCES)
+    /boost/beast//lib-asio-ssl
+    /boost/beast/test//lib-test
+    ;
+
+explicit fat-tests ;
+
+run $(SOURCES)
+    /boost/beast//lib-asio-ssl
+    /boost/beast/test//lib-test
+    : : : : run-fat-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/ssl/ssl_stream.cpp b/src/boost/libs/beast/test/beast/ssl/ssl_stream.cpp
new file mode 100644
index 000000000..da5717037
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/ssl/ssl_stream.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/ssl/ssl_stream.hpp>
diff --git a/src/boost/libs/beast/test/beast/version.cpp b/src/boost/libs/beast/test/beast/version.cpp
new file mode 100644
index 000000000..502126e56
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/version.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// If including Windows.h generates errors, it
+// means that min/max macros are being substituted.
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/version.hpp>
diff --git a/src/boost/libs/beast/test/beast/websocket.cpp b/src/boost/libs/beast/test/beast/websocket.cpp
new file mode 100644
index 000000000..4dd358d55
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// If including Windows.h generates errors, it
+// means that min/max macros are being substituted.
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket.hpp>
diff --git a/src/boost/libs/beast/test/beast/websocket/CMakeLists.txt b/src/boost/libs/beast/test/beast/websocket/CMakeLists.txt
new file mode 100644
index 000000000..50036eeb8
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/CMakeLists.txt
@@ -0,0 +1,52 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/extras/include/boost/beast extras)
+GroupSources (test/beast/websocket "/")
+
+add_executable (tests-beast-websocket
+    ${BOOST_BEAST_FILES}
+    ${EXTRAS_FILES}
+    Jamfile
+    _detail_decorator.cpp
+    _detail_prng.cpp
+    _detail_impl_base.cpp
+    test.hpp
+    _detail_prng.cpp
+    accept.cpp
+    close.cpp
+    error.cpp
+    frame.cpp
+    handshake.cpp
+    option.cpp
+    ping.cpp
+    read1.cpp
+    read2.cpp
+    read3.cpp
+    rfc6455.cpp
+    ssl.cpp
+    stream.cpp
+    stream_base.cpp
+    stream_explicit.cpp
+    stream_fwd.cpp
+    teardown.cpp
+    timer.cpp
+    utf8_checker.cpp
+    write.cpp
+)
+
+target_link_libraries(tests-beast-websocket
+    lib-asio
+    lib-asio-ssl
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-beast-websocket PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/websocket/Jamfile b/src/boost/libs/beast/test/beast/websocket/Jamfile
new file mode 100644
index 000000000..1469d8611
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/Jamfile
@@ -0,0 +1,62 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    _detail_decorator.cpp
+    _detail_impl_base.cpp
+    _detail_prng.cpp
+    accept.cpp
+    close.cpp
+    error.cpp
+    frame.cpp
+    handshake.cpp
+    option.cpp
+    ping.cpp
+    read1.cpp
+    read2.cpp
+    read3.cpp
+    rfc6455.cpp
+    ssl.cpp
+    stream.cpp
+    stream_base.cpp
+    stream_explicit.cpp
+    stream_fwd.cpp
+    teardown.cpp
+    timer.cpp
+    utf8_checker.cpp
+    write.cpp
+    ;
+
+local RUN_TESTS ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f)
+        /boost/beast//lib-asio-ssl
+        /boost/beast/test//lib-test
+    ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
+
+exe fat-tests
+    :
+    $(SOURCES)
+    /boost/beast//lib-asio-ssl
+    /boost/beast/test//lib-test
+    ;
+
+explicit fat-tests ;
+
+run $(SOURCES)
+    /boost/beast//lib-asio-ssl
+    /boost/beast/test//lib-test
+    : : : : run-fat-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/websocket/_detail_decorator.cpp b/src/boost/libs/beast/test/beast/websocket/_detail_decorator.cpp
new file mode 100644
index 000000000..fe51f6f03
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/_detail_decorator.cpp
@@ -0,0 +1,152 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/detail/decorator.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+namespace detail {
+
+class decorator_test : public unit_test::suite
+{
+public:
+    struct req_t
+    {
+        bool pass_ = false;
+
+        req_t() = default;
+
+        ~req_t()
+        {
+            BEAST_EXPECT(pass_);
+        }
+
+        req_t(req_t&& other) noexcept
+            : pass_(boost::exchange(other.pass_, true))
+        {
+        }
+
+        void
+        operator()(request_type&)
+        {
+            BEAST_EXPECT(! pass_);
+            pass_ = true;
+        }
+    };
+
+    struct res_t
+    {
+        bool pass_ = false;
+
+        res_t() = default;
+
+        ~res_t()
+        {
+            BEAST_EXPECT(pass_);
+        }
+
+        res_t(res_t&& other) noexcept
+            : pass_(boost::exchange(other.pass_, true))
+        {
+        }
+
+        void
+        operator()(response_type&)
+        {
+            BEAST_EXPECT(! pass_);
+            pass_ = true;
+        }
+    };
+
+    struct both_t : res_t , req_t
+    {
+        using req_t::operator();
+        using res_t::operator();
+    };
+
+    struct big_t : both_t
+    {
+        using both_t::operator();
+        char buf[2048];
+    };
+
+    struct goldi // just right
+    {
+        struct incomplete;
+        std::shared_ptr<incomplete> sp1;
+        std::shared_ptr<incomplete> sp2;
+        void* param;
+
+        void operator()(request_type &) const
+        {
+        }
+    };
+
+    void
+    dec_req(request_type&)
+    {
+    }
+
+    void
+    testDecorator()
+    {
+        request_type req;
+        response_type res;
+
+        decorator{}(req);
+        decorator{}(res);
+        decorator{req_t{}}(req);
+        decorator{res_t{}}(res);
+
+        {
+            decorator d(both_t{});
+            d(req);
+            d(res);
+        }
+
+        {
+            decorator d(big_t{});
+            d(req);
+            d(res);
+        }
+
+        {
+            decorator d1{req_t{}};
+            decorator d2{std::move(d1)};
+            d2(req);
+            decorator d3;
+            d3 = std::move(d2);
+        }
+
+        {
+            decorator d{goldi{}};
+            bool is_inline = d.vtable_ ==
+                decorator::vtable_impl<goldi, true>::get();
+            BEAST_EXPECT(is_inline);
+        }
+    }
+
+    void
+    run() override
+    {
+        log << "sizeof(decorator)==" << sizeof(decorator) << "\n";
+        testDecorator();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,decorator);
+
+} // detail
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/_detail_impl_base.cpp b/src/boost/libs/beast/test/beast/websocket/_detail_impl_base.cpp
new file mode 100644
index 000000000..026a61b9f
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/_detail_impl_base.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/detail/impl_base.hpp>
diff --git a/src/boost/libs/beast/test/beast/websocket/_detail_prng.cpp b/src/boost/libs/beast/test/beast/websocket/_detail_prng.cpp
new file mode 100644
index 000000000..882940e07
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/_detail_prng.cpp
@@ -0,0 +1,76 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/detail/prng.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+namespace detail {
+
+#ifdef BOOST_BEAST_TEST_STATIC_PRNG_SEED
+auto prng_init = []()
+{
+    // Workaround for https://bugs.launchpad.net/ubuntu/+source/valgrind/+bug/1501545
+    std::seed_seq seq{{0xDEAD, 0xBEEF}};
+    detail::prng_seed(&seq);
+    return 0;
+}();
+#endif // BOOST_BEAST_TEST_STATIC_PRNG_SEED
+
+class prng_test
+    : public beast::unit_test::suite
+{
+public:
+#if 0
+    char const* name() const noexcept //override
+    {
+        return "boost.beast.websocket.detail.prng";
+    }
+#endif
+
+    template <class F>
+    void
+    testPrng(F const& f)
+    {
+        auto const min = std::numeric_limits<std::uint32_t>::min();
+        auto const max = std::numeric_limits<std::uint32_t>::max();
+
+        {
+            auto v = f()();
+            BEAST_EXPECT(
+                v >= min &&
+                v <= max);
+        }
+        {
+            auto v = f()();
+            BEAST_EXPECT(
+                v >= min &&
+                v <= max);
+        }
+    }
+
+    void
+    run() override
+    {
+        testPrng([]{ return make_prng(true); });
+        testPrng([]{ return make_prng(false); });
+    }
+};
+
+//static prng_test t;
+BEAST_DEFINE_TESTSUITE(beast,websocket,prng);
+
+} // detail
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/accept.cpp b/src/boost/libs/beast/test/beast/websocket/accept.cpp
new file mode 100644
index 000000000..9c1e58bf1
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/accept.cpp
@@ -0,0 +1,830 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/test/tcp.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include "test.hpp"
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class accept_test : public unit_test::suite //: public websocket_test_suite
+{
+public:
+    class res_decorator
+    {
+        bool& b_;
+
+    public:
+        res_decorator(res_decorator const&) = default;
+
+        explicit
+        res_decorator(bool& b)
+            : b_(b)
+        {
+        }
+
+        void
+        operator()(response_type&) const
+        {
+            this->b_ = true;
+        }
+    };
+
+    template<std::size_t N>
+    static
+    net::const_buffer
+    sbuf(const char (&s)[N])
+    {
+        return net::const_buffer(&s[0], N-1);
+    }
+
+    static
+    void
+    fail_loop(
+        std::function<void(stream<test::stream>&)> f,
+        std::chrono::steady_clock::duration amount =
+            std::chrono::seconds(5))
+    {
+        using clock_type = std::chrono::steady_clock;
+        auto const expires_at =
+            clock_type::now() + amount;
+        net::io_context ioc;
+        for(std::size_t n = 0;;++n)
+        {
+            test::fail_count fc(n);
+            try
+            {
+                stream<test::stream> ws(ioc, fc);
+                auto tr = connect(ws.next_layer());
+                f(ws);
+                break;
+            }
+            catch(system_error const& se)
+            {
+                // VFALCO Commented this out after the short
+                // read change, because it converts test_failure
+                // into http::partial_message
+                //
+                boost::ignore_unused(se);
+            #if 0
+                if(! BEAST_EXPECTS(
+                    se.code() == test::error::test_failure,
+                    se.code().message()))
+                    throw;
+            #endif
+                if(! BEAST_EXPECTS(
+                    clock_type::now() < expires_at,
+                    "a test timeout occurred"))
+                    break;
+            }
+        }
+    }
+
+    template<class Api>
+    void
+    testMatrix(Api api)
+    {
+        net::io_context ioc;
+
+        // request in stream
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            ws.next_layer().append(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n");
+            ws.next_layer().read_size(20);
+            api.accept(ws);
+        });
+
+        // request in stream, decorator
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            ws.next_layer().append(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n");
+            ws.next_layer().read_size(20);
+            bool called = false;
+            ws.set_option(stream_base::decorator(
+                res_decorator{called}));
+            api.accept(ws);
+            BEAST_EXPECT(called);
+        });
+
+        // request in buffers
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            api.accept(ws, sbuf(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n"
+            ));
+        });
+
+        // request in buffers, decorator
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            bool called = false;
+            ws.set_option(stream_base::decorator(
+                res_decorator{called}));
+            api.accept(ws, sbuf(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n"));
+            BEAST_EXPECT(called);
+        });
+
+        // request in buffers and stream
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            ws.next_layer().append(
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n");
+            ws.next_layer().read_size(16);
+            api.accept(ws, sbuf(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+            ));
+            // VFALCO validate contents of ws.next_layer().str?
+        });
+
+        // request in buffers and stream, decorator
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            ws.next_layer().append(
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n");
+            ws.next_layer().read_size(16);
+            bool called = false;
+            ws.set_option(stream_base::decorator(
+                res_decorator{called}));
+            api.accept(ws, sbuf(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"));
+            BEAST_EXPECT(called);
+        });
+
+        // request in message
+        {
+            request_type req;
+            req.method(http::verb::get);
+            req.target("/");
+            req.version(11);
+            req.insert(http::field::host, "localhost");
+            req.insert(http::field::upgrade, "websocket");
+            req.insert(http::field::connection, "upgrade");
+            req.insert(http::field::sec_websocket_key, "dGhlIHNhbXBsZSBub25jZQ==");
+            req.insert(http::field::sec_websocket_version, "13");
+
+            fail_loop([&](stream<test::stream>& ws)
+            {
+                api.accept(ws, req);
+            });
+        }
+
+        // request in message, decorator
+        {
+            request_type req;
+            req.method(http::verb::get);
+            req.target("/");
+            req.version(11);
+            req.insert(http::field::host, "localhost");
+            req.insert(http::field::upgrade, "websocket");
+            req.insert(http::field::connection, "upgrade");
+            req.insert(http::field::sec_websocket_key, "dGhlIHNhbXBsZSBub25jZQ==");
+            req.insert(http::field::sec_websocket_version, "13");
+
+            fail_loop([&](stream<test::stream>& ws)
+            {
+                bool called = false;
+                ws.set_option(stream_base::decorator(
+                    res_decorator{called}));
+                api.accept(ws, req);
+                BEAST_EXPECT(called);
+            });
+        }
+
+        // request in message, close frame in stream
+        {
+            request_type req;
+            req.method(http::verb::get);
+            req.target("/");
+            req.version(11);
+            req.insert(http::field::host, "localhost");
+            req.insert(http::field::upgrade, "websocket");
+            req.insert(http::field::connection, "upgrade");
+            req.insert(http::field::sec_websocket_key, "dGhlIHNhbXBsZSBub25jZQ==");
+            req.insert(http::field::sec_websocket_version, "13");
+
+            fail_loop([&](stream<test::stream>& ws)
+            {
+                ws.next_layer().append("\x88\x82\xff\xff\xff\xff\xfc\x17");
+                api.accept(ws, req);
+                try
+                {
+                    static_buffer<1> b;
+                    api.read(ws, b);
+                    fail("success", __FILE__, __LINE__);
+                }
+                catch(system_error const& e)
+                {
+                    if(e.code() != websocket::error::closed)
+                        throw;
+                }
+            });
+        }
+
+        // failed handshake (missing Sec-WebSocket-Key)
+        fail_loop([&](stream<test::stream>& ws)
+        {
+            ws.next_layer().append(
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                "\r\n");
+            ws.next_layer().read_size(20);
+            try
+            {
+                api.accept(ws);
+                BEAST_FAIL();
+            }
+            catch(system_error const& e)
+            {
+                if( e.code() != websocket::error::no_sec_key &&
+                    e.code() != net::error::eof)
+                    throw;
+            }
+        });
+    }
+
+    template<class Api>
+    void
+    testOversized(Api const& api)
+    {
+        net::io_context ioc;
+
+        auto const big = []
+        {
+            std::string s;
+            s += "X1: " + std::string(2000, '*') + "\r\n";
+            return s;
+        }();
+
+        // request in stream
+        {
+            stream<test::stream> ws{ioc,
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                + big +
+                "\r\n"};
+            auto tr = connect(ws.next_layer());
+            try
+            {
+                api.accept(ws);
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                // VFALCO Its the http error category...
+                BEAST_EXPECTS(
+                    se.code() == http::error::buffer_overflow,
+                    se.code().message());
+            }
+        }
+
+        // request in stream, decorator
+        {
+            stream<test::stream> ws{ioc,
+                "GET / HTTP/1.1\r\n"
+                "Host: localhost\r\n"
+                "Upgrade: websocket\r\n"
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                + big +
+                "\r\n"};
+            auto tr = connect(ws.next_layer());
+            try
+            {
+                bool called = false;
+                ws.set_option(stream_base::decorator(
+                    res_decorator{called}));
+                api.accept(ws);
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                // VFALCO Its the http error category...
+                BEAST_EXPECTS(
+                    se.code() == http::error::buffer_overflow,
+                    se.code().message());
+            }
+        }
+
+        // request in buffers
+        {
+            stream<test::stream> ws{ioc};
+            auto tr = connect(ws.next_layer());
+            try
+            {
+                api.accept(ws, net::buffer(
+                    "GET / HTTP/1.1\r\n"
+                    "Host: localhost\r\n"
+                    "Upgrade: websocket\r\n"
+                    "Connection: upgrade\r\n"
+                    "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                    "Sec-WebSocket-Version: 13\r\n"
+                    + big +
+                    "\r\n"
+                ));
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == error::buffer_overflow,
+                    se.code().message());
+            }
+        }
+
+        // request in buffers, decorator
+        {
+            stream<test::stream> ws{ioc};
+            auto tr = connect(ws.next_layer());
+            try
+            {
+                bool called = false;
+                ws.set_option(stream_base::decorator(
+                    res_decorator{called}));
+                api.accept(ws, net::buffer(
+                    "GET / HTTP/1.1\r\n"
+                    "Host: localhost\r\n"
+                    "Upgrade: websocket\r\n"
+                    "Connection: upgrade\r\n"
+                    "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                    "Sec-WebSocket-Version: 13\r\n"
+                    + big +
+                    "\r\n"));
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == error::buffer_overflow,
+                    se.code().message());
+            }
+        }
+
+        // request in buffers and stream
+        {
+            stream<test::stream> ws{ioc,
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                + big +
+                "\r\n"};
+            auto tr = connect(ws.next_layer());
+            try
+            {
+                api.accept(ws, websocket_test_suite::sbuf(
+                    "GET / HTTP/1.1\r\n"
+                    "Host: localhost\r\n"
+                    "Upgrade: websocket\r\n"
+                ));
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == http::error::buffer_overflow,
+                    se.code().message());
+            }
+        }
+
+        // request in buffers and stream, decorator
+        {
+            stream<test::stream> ws{ioc,
+                "Connection: upgrade\r\n"
+                "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                "Sec-WebSocket-Version: 13\r\n"
+                + big +
+                "\r\n"};
+            auto tr = connect(ws.next_layer());
+            try
+            {
+                bool called = false;
+                ws.set_option(stream_base::decorator(
+                    res_decorator{called}));
+                api.accept(ws, websocket_test_suite::sbuf(
+                    "GET / HTTP/1.1\r\n"
+                    "Host: localhost\r\n"
+                    "Upgrade: websocket\r\n"));
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == http::error::buffer_overflow,
+                    se.code().message());
+            }
+        }
+    }
+
+    void
+    testInvalidInputs()
+    {
+        net::io_context ioc;
+
+        auto const check =
+        [&](error_code ev, string_view s)
+        {
+            for(int i = 0; i < 3; ++i)
+            {
+                std::size_t n;
+                switch(i)
+                {
+                default:
+                case 0:
+                    n = 1;
+                    break;
+                case 1:
+                    n = s.size() / 2;
+                    break;
+                case 2:
+                    n = s.size() - 1;
+                    break;
+                }
+                stream<test::stream> ws(ioc);
+                auto tr = connect(ws.next_layer());
+                ws.next_layer().append(
+                    s.substr(n, s.size() - n));
+                tr.close();
+                try
+                {
+                    ws.accept(net::buffer(s.data(), n));
+                    BEAST_EXPECTS(! ev, ev.message());
+                }
+                catch(system_error const& se)
+                {
+                    BEAST_EXPECTS(se.code() == ev, se.what());
+                }
+            }
+        };
+
+        // bad version
+        check(error::bad_http_version,
+            "GET / HTTP/1.0\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive,upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // bad method
+        check(error::bad_method,
+            "POST / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive,upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Host
+        check(error::no_host,
+            "GET / HTTP/1.1\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive,upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Connection
+        check(error::no_connection,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Connection upgrade
+        check(error::no_connection_upgrade,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Upgrade
+        check(error::no_upgrade,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Upgrade websocket
+        check(error::no_upgrade_websocket,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: HTTP/2\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Sec-WebSocket-Key
+        check(error::no_sec_key,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive,upgrade\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // bad Sec-WebSocket-Key
+        check(error::bad_sec_key,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQdGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+
+        // no Sec-WebSocket-Version
+        check(error::no_sec_version,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive,upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "\r\n"
+        );
+
+        // bad Sec-WebSocket-Version
+        check(error::bad_sec_version,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive,upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 1\r\n"
+            "\r\n"
+        );
+
+        // bad Sec-WebSocket-Version
+        check(error::bad_sec_version,
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 12\r\n"
+            "\r\n"
+        );
+
+        // valid request
+        check({},
+            "GET / HTTP/1.1\r\n"
+            "Host: localhost:80\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+    }
+
+    void
+    testEndOfStream()
+    {
+        net::io_context ioc;
+        {
+            stream<test::stream> ws(ioc);
+            auto tr = connect(ws.next_layer());
+            tr.close();
+            try
+            {
+                test_sync_api api;
+                api.accept(ws, net::const_buffer{});
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == error::closed,
+                    se.code().message());
+            }
+        }
+        {
+            stream<test::stream> ws(ioc);
+            auto tr = connect(ws.next_layer());
+            tr.close();
+            try
+            {
+                test_async_api api;
+                api.accept(ws, net::const_buffer{});
+                BEAST_FAIL();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == error::closed,
+                    se.code().message());
+            }
+        }
+    }
+
+    void
+    testAsync()
+    {
+        using tcp = net::ip::tcp;
+
+        net::io_context ioc;
+
+        // success, no timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        // success, timeout enabled
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_accept(test::success_handler());
+            ws2.async_handshake("test", "/", test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_accept(test::success_handler());
+            ws2.async_handshake("test", "/", test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        // timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_accept(test::fail_handler(beast::error::timeout));
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_accept(test::fail_handler(beast::error::timeout));
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        // abandoned operation
+
+        {
+            {
+                stream<tcp::socket> ws1(ioc);
+                ws1.async_accept(test::fail_handler(
+                    net::error::operation_aborted));
+            }
+            test::run(ioc);
+        }
+
+        {
+            {
+                stream<tcp::socket> ws1(ioc);
+                string_view s =
+                    "GET / HTTP/1.1\r\n"
+                    "Host: localhost\r\n"
+                    "Upgrade: websocket\r\n"
+                    "Connection: upgrade\r\n"
+                    "Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==\r\n"
+                    "Sec-WebSocket-Version: 13\r\n"
+                    "\r\n";
+                error_code ec;
+                http::request_parser<http::empty_body> p;
+                p.put(net::const_buffer(s.data(), s.size()), ec);
+                ws1.async_accept(p.get(), test::fail_handler(
+                    net::error::operation_aborted));
+            }
+            test::run(ioc);
+        }
+    }
+
+    void
+    run() override
+    {
+        testMatrix(test_sync_api{});
+        testMatrix(test_async_api{});
+        testOversized(test_sync_api{});
+        testOversized(test_async_api{});
+        testInvalidInputs();
+        testEndOfStream();
+        testAsync();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,accept);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/close.cpp b/src/boost/libs/beast/test/beast/websocket/close.cpp
new file mode 100644
index 000000000..1b891b339
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/close.cpp
@@ -0,0 +1,752 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/test/tcp.hpp>
+#include "test.hpp"
+
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class close_test : public websocket_test_suite
+{
+public:
+    template<class Wrap>
+    void
+    doTestClose(Wrap const& w)
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = false;
+        pmd.server_enable = false;
+
+        // close
+        doTest(pmd, [&](ws_type& ws)
+        {
+            w.close(ws, {});
+        });
+
+        // close with code
+        doTest(pmd, [&](ws_type& ws)
+        {
+            w.close(ws, close_code::going_away);
+        });
+
+        // close with code and reason
+        doTest(pmd, [&](ws_type& ws)
+        {
+            w.close(ws, {
+                close_code::going_away,
+                "going away"});
+        });
+
+        // already closed
+        {
+            echo_server es{log};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            w.handshake(ws, "localhost", "/");
+            w.close(ws, {});
+            try
+            {
+                w.close(ws, {});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == net::error::operation_aborted,
+                    se.code().message());
+            }
+        }
+
+        // drain a message after close
+        doTest(pmd, [&](ws_type& ws)
+        {
+            ws.next_layer().append("\x81\x01\x2a");
+            w.close(ws, {});
+        });
+
+        // drain a big message after close
+        {
+            std::string s;
+            s = "\x81\x7e\x10\x01";
+            s.append(4097, '*');
+            doTest(pmd, [&](ws_type& ws)
+            {
+                ws.next_layer().append(s);
+                w.close(ws, {});
+            });
+        }
+
+        // drain a ping after close
+        doTest(pmd, [&](ws_type& ws)
+        {
+            ws.next_layer().append("\x89\x01*");
+            w.close(ws, {});
+        });
+
+        // drain invalid message frame after close
+        {
+            echo_server es{log};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            w.handshake(ws, "localhost", "/");
+            ws.next_layer().append("\x81\x81\xff\xff\xff\xff*");
+            try
+            {
+                w.close(ws, {});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == error::bad_masked_frame,
+                    se.code().message());
+            }
+        }
+
+        // drain invalid close frame after close
+        {
+            echo_server es{log};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            w.handshake(ws, "localhost", "/");
+            ws.next_layer().append("\x88\x01*");
+            try
+            {
+                w.close(ws, {});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == error::bad_close_size,
+                    se.code().message());
+            }
+        }
+
+        // drain masked close frame
+        {
+            echo_server es{log, kind::async_client};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            ws.set_option(pmd);
+            es.async_handshake();
+            ws.accept();
+            w.close(ws, {});
+        }
+
+        // close with incomplete read message
+        doTest(pmd, [&](ws_type& ws)
+        {
+            ws.next_layer().append("\x81\x02**");
+            static_buffer<1> b;
+            w.read_some(ws, 1, b);
+            w.close(ws, {});
+        });
+    }
+
+    void
+    testClose()
+    {
+        doTestClose(SyncClient{});
+
+        yield_to([&](yield_context yield)
+        {
+            doTestClose(AsyncClient{yield});
+        });
+    }
+
+    void
+    testTimeout()
+    {
+        using tcp = net::ip::tcp;
+
+        net::io_context ioc;
+
+        // success
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            ws1.async_close({}, test::success_handler());
+            ws2.async_close({}, test::success_handler());
+            test::run(ioc);
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            ws1.async_close({}, test::success_handler());
+            ws2.async_close({}, test::success_handler());
+            test::run(ioc);
+        }
+
+        // success, timeout enabled
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_close({}, test::success_handler());
+            ws2.async_close({}, test::success_handler());
+            test::run(ioc);
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_close({}, test::success_handler());
+            ws2.async_close({}, test::success_handler());
+            test::run(ioc);
+        }
+
+        // timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_close({}, test::fail_handler(
+                beast::error::timeout));
+            test::run(ioc);
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_close({}, test::fail_handler(
+                beast::error::timeout));
+            test::run(ioc);
+        }
+    }
+
+    void
+    testSuspend()
+    {
+        // suspend on ping
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on write
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_write(sbuf("*"),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 1);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read ping + message
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            multi_buffer b;
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a ping and message to the input
+            ws.next_layer().append(string_view{
+                "\x89\x00" "\x81\x01*", 5});
+            std::size_t count = 0;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read bad message
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            multi_buffer b;
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add an invalid frame to the input
+            ws.next_layer().append(string_view{
+                "\x09\x00", 2});
+            std::size_t count = 0;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != error::bad_control_fragment)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read close #1
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            multi_buffer b;
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a close frame to the input
+            ws.next_layer().append(string_view{
+                "\x88\x00", 2});
+            std::size_t count = 0;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != error::closed)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // teardown on received close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            std::string const s = "Hello, world!";
+            multi_buffer b;
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a close frame to the input
+            ws.next_layer().append(string_view{
+                "\x88\x00", 2});
+            std::size_t count = 0;
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == s.size());
+                    BEAST_EXPECT(++count == 1);
+                });
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 3);
+                });
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 3);
+        });
+
+        // check for deadlock
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            multi_buffer b;
+            std::string const s = "Hello, world!";
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a ping frame to the input
+            ws.next_layer().append(string_view{
+                "\x89\x00", 2});
+            std::size_t count = 0;
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == s.size());
+                    BEAST_EXPECT(++count == 1);
+                });
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 3);
+                });
+            BEAST_EXPECT(ws.impl_->rd_block.is_locked());
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(ws.is_open());
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 3);
+        });
+
+        // Four-way: close, read, write, ping
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            std::string const s = "Hello, world!";
+            multi_buffer b;
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    ++count;
+                });
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    ++count;
+                });
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    ++count;
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 4);
+        });
+
+        // Four-way: read, write, ping, close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            multi_buffer b;
+            std::string const s = "Hello, world!";
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec && ec != net::error::operation_aborted)
+                    {
+                        BEAST_EXPECTS(ec, ec.message());
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    }
+                    if(! ec)
+                        BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                    ++count;
+                    if(count == 4)
+                        BEAST_EXPECT(
+                            ec == net::error::operation_aborted);
+                });
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == s.size());
+                    BEAST_EXPECT(++count == 1);
+                });
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    if(ec != net::error::operation_aborted)
+                    {
+                        BEAST_EXPECTS(ec, ec.message());
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    }
+                    ++count;
+                });
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    ++count;
+                    BEAST_EXPECT(count == 2 || count == 3);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 4);
+        });
+
+        // Four-way: ping, read, write, close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            multi_buffer b;
+            std::string const s = "Hello, world!";
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    ++count;
+                });
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    ++count;
+                });
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 4);
+        });
+    }
+
+    void
+    testMoveOnly()
+    {
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.async_close({}, move_only_handler{});
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    run() override
+    {
+        testClose();
+        testTimeout();
+        testSuspend();
+        testMoveOnly();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,close);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/doc_snippets.cpp b/src/boost/libs/beast/test/beast/websocket/doc_snippets.cpp
new file mode 100644
index 000000000..4e8ae0eaf
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/doc_snippets.cpp
@@ -0,0 +1,285 @@
+//
+// Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core.hpp>
+#include <boost/asio.hpp>
+#include <boost/asio/spawn.hpp>
+#include <boost/asio/use_future.hpp>
+#include <algorithm>
+#include <future>
+#include <iostream>
+#include <thread>
+
+//[ws_snippet_1
+#include <boost/beast/websocket.hpp>
+using namespace boost::beast::websocket;
+//]
+
+using namespace boost::beast;
+
+namespace doc_ws_snippets {
+
+void fxx() {
+
+net::io_service ios;
+net::io_service::work work{ios};
+std::thread t{[&](){ ios.run(); }};
+error_code ec;
+net::ip::tcp::socket sock{ios};
+
+{
+//[ws_snippet_2
+    stream<net::ip::tcp::socket> ws{ios};
+//]
+}
+
+{
+//[ws_snippet_3
+    stream<net::ip::tcp::socket> ws{std::move(sock)};
+//]
+}
+
+{
+//[ws_snippet_4
+    stream<net::ip::tcp::socket&> ws{sock};
+//]
+
+//[ws_snippet_5
+    ws.next_layer().shutdown(net::ip::tcp::socket::shutdown_send);
+//]
+}
+
+{
+//[ws_snippet_6
+    std::string const host = "mywebapp.com";
+    net::ip::tcp::resolver r{ios};
+    stream<net::ip::tcp::socket> ws{ios};
+    net::connect(ws.next_layer(), r.resolve({host, "ws"}));
+//]
+}
+
+{
+//[ws_snippet_7
+    net::ip::tcp::acceptor acceptor{ios};
+    stream<net::ip::tcp::socket> ws{acceptor.get_io_service()};
+    acceptor.accept(ws.next_layer());
+//]
+}
+
+{
+    stream<net::ip::tcp::socket> ws{ios};
+//[ws_snippet_8
+    ws.handshake("localhost", "/");
+//]
+
+//[ws_snippet_9
+    ws.handshake_ex("localhost", "/",
+        [](request_type& m)
+        {
+            m.insert(http::field::sec_websocket_protocol, "xmpp;ws-chat");
+        });
+//]
+
+//[ws_snippet_10
+    response_type res;
+    ws.handshake(res, "localhost", "/");
+    if(! res.count(http::field::sec_websocket_protocol))
+        throw std::invalid_argument("missing subprotocols");
+//]
+
+//[ws_snippet_11
+    ws.accept();
+//]
+
+//[ws_snippet_12
+    ws.accept_ex(
+        [](response_type& m)
+        {
+            m.insert(http::field::server, "MyServer");
+        });
+//]
+}
+
+{
+//[ws_snippet_13]
+    // Buffer required for reading HTTP messages
+    flat_buffer buffer;
+
+    // Read the HTTP request ourselves
+    http::request<http::string_body> req;
+    http::read(sock, buffer, req);
+
+    // See if its a WebSocket upgrade request
+    if(websocket::is_upgrade(req))
+    {
+        // Construct the stream, transferring ownership of the socket
+        stream<net::ip::tcp::socket> ws{std::move(sock)};
+
+        // Accept the request from our message. Clients SHOULD NOT
+        // begin sending WebSocket frames until the server has
+        // provided a response, but just in case they did, we pass
+        // any leftovers in the buffer to the accept function.
+        //
+        ws.accept(req, buffer.data());
+    }
+    else
+    {
+        // Its not a WebSocket upgrade, so
+        // handle it like a normal HTTP request.
+    }
+//]
+}
+
+{
+    stream<net::ip::tcp::socket> ws{ios};
+//[ws_snippet_14
+    // Read into our buffer until we reach the end of the HTTP request.
+    // No parsing takes place here, we are just accumulating data.
+    net::streambuf buffer;
+    net::read_until(sock, buffer, "\r\n\r\n");
+
+    // Now accept the connection, using the buffered data.
+    ws.accept(buffer.data());
+//]
+}
+{
+    stream<net::ip::tcp::socket> ws{ios};
+//[ws_snippet_15
+    multi_buffer buffer;
+    ws.read(buffer);
+
+    ws.text(ws.got_text());
+    ws.write(buffer.data());
+    buffer.consume(buffer.size());
+//]
+}
+
+{
+    stream<net::ip::tcp::socket> ws{ios};
+//[ws_snippet_16
+    multi_buffer buffer;
+    for(;;)
+        if(ws.read_some(buffer, 0))
+            break;
+    ws.binary(ws.got_binary());
+    consuming_buffers<multi_buffer::const_buffers_type> cb{buffer.data()};
+    for(;;)
+    {
+        using net::buffer_size;
+        if(buffer_size(cb) > 512)
+        {
+            ws.write_some(false, buffer_prefix(512, cb));
+            cb.consume(512);
+        }
+        else
+        {
+            ws.write_some(true, cb);
+            break;
+        }
+    }
+//]
+}
+
+{
+    stream<net::ip::tcp::socket> ws{ios};
+//[ws_snippet_17
+    auto cb =
+        [](frame_type kind, string_view payload)
+        {
+            // Do something with the payload
+            boost::ignore_unused(kind, payload);
+        };
+    ws.control_callback(cb);
+//]
+
+//[ws_snippet_18
+    ws.close(close_code::normal);
+//]
+
+//[ws_snippet_19
+    ws.auto_fragment(true);
+    ws.write_buffer_size(16384);
+//]
+
+//[ws_snippet_20
+    multi_buffer buffer;
+    ws.async_read(buffer,
+        [](error_code, std::size_t)
+        {
+            // Do something with the buffer
+        });
+//]
+}
+
+} // fxx()
+
+// workaround for https://github.com/chriskohlhoff/asio/issues/112
+#ifdef BOOST_MSVC
+//[ws_snippet_21
+void echo(stream<net::ip::tcp::socket>& ws,
+    multi_buffer& buffer, net::yield_context yield)
+{
+    ws.async_read(buffer, yield);
+    std::future<void> fut =
+        ws.async_write(buffer.data(), net::use_future);
+}
+//]
+#endif
+
+} // doc_ws_snippets
+
+//------------------------------------------------------------------------------
+
+#if BOOST_BEAST_USE_OPENSSL
+
+//[wss_snippet_1
+#include <boost/beast/websocket/ssl.hpp>
+#include <boost/asio/ssl.hpp>
+//]
+
+namespace doc_wss_snippets {
+
+void fxx() {
+
+net::io_service ios;
+net::io_service::work work{ios};
+std::thread t{[&](){ ios.run(); }};
+error_code ec;
+net::ip::tcp::socket sock{ios};
+
+{
+//[wss_snippet_2
+    net::ssl::context ctx{net::ssl::context::tlsv12};
+    stream<net::ssl::stream<net::ip::tcp::socket>> wss{ios, ctx};
+//]
+}
+
+{
+//[wss_snippet_3
+    net::ip::tcp::endpoint ep;
+    net::ssl::context ctx{net::ssl::context::tlsv12};
+    stream<net::ssl::stream<net::ip::tcp::socket>> ws{ios, ctx};
+
+    // connect the underlying TCP/IP socket
+    ws.next_layer().next_layer().connect(ep);
+
+    // perform SSL handshake
+    ws.next_layer().handshake(net::ssl::stream_base::client);
+
+    // perform WebSocket handshake
+    ws.handshake("localhost", "/");
+//]
+}
+
+} // fxx()
+
+} // doc_wss_snippets
+
+#endif
+
diff --git a/src/boost/libs/beast/test/beast/websocket/error.cpp b/src/boost/libs/beast/test/beast/websocket/error.cpp
new file mode 100644
index 000000000..2a272184b
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/error.cpp
@@ -0,0 +1,82 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/error.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <memory>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class error_test : public unit_test::suite
+{
+public:
+    void check(error e)
+    {
+        auto const ec = make_error_code(e);
+        ec.category().name();
+        BEAST_EXPECT(! ec.message().empty());
+        BEAST_EXPECT(ec != condition::handshake_failed);
+        BEAST_EXPECT(ec != condition::protocol_violation);
+    }
+
+    void check(condition c, error e)
+    {
+        auto const ec = make_error_code(e);
+        BEAST_EXPECT(ec.category().name() != nullptr);
+        BEAST_EXPECT(! ec.message().empty());
+        BEAST_EXPECT(ec == c);
+    }
+
+    void run() override
+    {
+        check(error::closed);
+        check(error::buffer_overflow);
+        check(error::partial_deflate_block);
+        check(error::message_too_big);
+
+        check(condition::protocol_violation, error::bad_opcode);
+        check(condition::protocol_violation, error::bad_data_frame);
+        check(condition::protocol_violation, error::bad_continuation);
+        check(condition::protocol_violation, error::bad_reserved_bits);
+        check(condition::protocol_violation, error::bad_control_fragment);
+        check(condition::protocol_violation, error::bad_control_size);
+        check(condition::protocol_violation, error::bad_unmasked_frame);
+        check(condition::protocol_violation, error::bad_masked_frame);
+        check(condition::protocol_violation, error::bad_size);
+        check(condition::protocol_violation, error::bad_frame_payload);
+        check(condition::protocol_violation, error::bad_close_code);
+        check(condition::protocol_violation, error::bad_close_size);
+        check(condition::protocol_violation, error::bad_close_payload);
+
+        check(condition::handshake_failed, error::bad_http_version);
+        check(condition::handshake_failed, error::bad_method);
+        check(condition::handshake_failed, error::no_host);
+        check(condition::handshake_failed, error::no_connection);
+        check(condition::handshake_failed, error::no_connection_upgrade);
+        check(condition::handshake_failed, error::no_upgrade);
+        check(condition::handshake_failed, error::no_upgrade_websocket);
+        check(condition::handshake_failed, error::no_sec_key);
+        check(condition::handshake_failed, error::bad_sec_key);
+        check(condition::handshake_failed, error::no_sec_version);
+        check(condition::handshake_failed, error::bad_sec_version);
+        check(condition::handshake_failed, error::no_sec_accept);
+        check(condition::handshake_failed, error::bad_sec_accept);
+        check(condition::handshake_failed, error::upgrade_declined);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,error);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/frame.cpp b/src/boost/libs/beast/test/beast/websocket/frame.cpp
new file mode 100644
index 000000000..8380e132c
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/frame.cpp
@@ -0,0 +1,78 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/websocket/detail/frame.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+namespace detail {
+
+class frame_test
+    : public beast::unit_test::suite
+{
+public:
+    void testCloseCodes()
+    {
+        BEAST_EXPECT(! is_valid_close_code(0));
+        BEAST_EXPECT(! is_valid_close_code(1));
+        BEAST_EXPECT(! is_valid_close_code(999));
+        BEAST_EXPECT(! is_valid_close_code(1004));
+        BEAST_EXPECT(! is_valid_close_code(1005));
+        BEAST_EXPECT(! is_valid_close_code(1006));
+        BEAST_EXPECT(! is_valid_close_code(1016));
+        BEAST_EXPECT(! is_valid_close_code(2000));
+        BEAST_EXPECT(! is_valid_close_code(2999));
+        BEAST_EXPECT(is_valid_close_code(1000));
+        BEAST_EXPECT(is_valid_close_code(1002));
+        BEAST_EXPECT(is_valid_close_code(3000));
+        BEAST_EXPECT(is_valid_close_code(4000));
+        BEAST_EXPECT(is_valid_close_code(5000));
+    }
+
+    struct test_fh : frame_header
+    {
+        test_fh()
+        {
+            op = detail::opcode::text;
+            fin =  true;
+            mask = false;
+            rsv1 = false;
+            rsv2 = false;
+            rsv3 = false;
+            len = 0;
+            key = 0;
+        }
+    };
+
+    void
+    testWriteFrame()
+    {
+        test_fh fh;
+        fh.rsv2 = true;
+        fh.rsv3 = true;
+        fh.len = 65536;
+        frame_buffer fb;
+        write(fb, fh);
+    }
+
+    void run() override
+    {
+        testWriteFrame();
+        testCloseCodes();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,frame);
+
+} // detail
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/handshake.cpp b/src/boost/libs/beast/test/beast/websocket/handshake.cpp
new file mode 100644
index 000000000..e5ea4004c
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/handshake.cpp
@@ -0,0 +1,724 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/test/tcp.hpp>
+
+#include "test.hpp"
+
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+#include <thread>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class handshake_test : public websocket_test_suite
+{
+public:
+    template<class Wrap>
+    void
+    doTestHandshake(Wrap const& w)
+    {
+        class req_decorator
+        {
+            bool& b_;
+
+        public:
+            req_decorator(req_decorator const&) = default;
+
+            explicit
+            req_decorator(bool& b)
+                : b_(b)
+            {
+            }
+
+            void
+            operator()(request_type&) const
+            {
+                b_ = true;
+            }
+        };
+
+        // handshake
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log};
+            ws_type ws{ts};
+            ws.next_layer().connect(es.stream());
+            try
+            {
+                w.handshake(ws, "localhost", "/");
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+            ts.close();
+        });
+
+        // handshake, response
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log};
+            ws_type ws{ts};
+            ws.next_layer().connect(es.stream());
+            response_type res;
+            try
+            {
+                w.handshake(ws, res, "localhost", "/");
+                // VFALCO validate res?
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+            ts.close();
+        });
+
+        // handshake, decorator
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log};
+            ws_type ws{ts};
+            ws.next_layer().connect(es.stream());
+            bool called = false;
+            try
+            {
+                ws.set_option(stream_base::decorator(
+                    req_decorator{called}));
+                w.handshake(ws, "localhost", "/");
+                BEAST_EXPECT(called);
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+            ts.close();
+        });
+
+        // handshake, response, decorator
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log};
+            ws_type ws{ts};
+            ws.next_layer().connect(es.stream());
+            bool called = false;
+            response_type res;
+            try
+            {
+                ws.set_option(stream_base::decorator(
+                    req_decorator{called}));
+                w.handshake(ws, res, "localhost", "/");
+                // VFALCO validate res?
+                BEAST_EXPECT(called);
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+            ts.close();
+        });
+    }
+
+    void
+    testHandshake()
+    {
+        doTestHandshake(SyncClient{});
+
+        yield_to([&](yield_context yield)
+        {
+            doTestHandshake(AsyncClient{yield});
+        });
+
+        auto const check =
+        [&](error e, std::string const& s)
+        {
+            stream<test::stream> ws{ioc_};
+            auto tr = connect(ws.next_layer());
+            ws.next_layer().append(s);
+            tr.close();
+            try
+            {
+                ws.handshake("localhost:80", "/");
+                fail();
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(se.code() == e, se.what());
+            }
+        };
+        // bad HTTP version
+        check(error::bad_http_version,
+            "HTTP/1.0 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // no Connection
+        check(error::no_connection,
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // no Connection upgrade
+        check(error::no_connection_upgrade,
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: keep-alive\r\n"
+            "Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // no Upgrade
+        check(error::no_upgrade,
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // no Upgrade websocket
+        check(error::no_upgrade_websocket,
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Upgrade: HTTP/2\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // no Sec-WebSocket-Accept
+        check(error::no_sec_accept,
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // bad Sec-WebSocket-Accept
+        check(error::bad_sec_accept,
+            "HTTP/1.1 101 Switching Protocols\r\n"
+            "Server: beast\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Accept: *\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+        // declined
+        check(error::upgrade_declined,
+            "HTTP/1.1 200 OK\r\n"
+            "Server: beast\r\n"
+            "Upgrade: WebSocket\r\n"
+            "Connection: upgrade\r\n"
+            "Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=\r\n"
+            "Sec-WebSocket-Version: 13\r\n"
+            "\r\n"
+        );
+    }
+
+    // Compression Extensions for WebSocket
+    //
+    // https://tools.ietf.org/html/rfc7692
+    //
+    void
+    testExtRead()
+    {
+        detail::pmd_offer po;
+
+        auto const accept =
+        [&](string_view s)
+        {
+            http::fields f;
+            f.set(http::field::sec_websocket_extensions, s);
+            po = detail::pmd_offer();
+            detail::pmd_read(po, f);
+            BEAST_EXPECT(po.accept);
+        };
+
+        auto const reject =
+        [&](string_view s)
+        {
+            http::fields f;
+            f.set(http::field::sec_websocket_extensions, s);
+            po = detail::pmd_offer();
+            detail::pmd_read(po, f);
+            BEAST_EXPECT(! po.accept);
+        };
+
+        // duplicate parameters
+        reject("permessage-deflate; server_max_window_bits=8; server_max_window_bits=8");
+
+        // missing value
+        reject("permessage-deflate; server_max_window_bits");
+        reject("permessage-deflate; server_max_window_bits=");
+
+        // invalid value
+        reject("permessage-deflate; server_max_window_bits=-1");
+        reject("permessage-deflate; server_max_window_bits=7");
+        reject("permessage-deflate; server_max_window_bits=16");
+        reject("permessage-deflate; server_max_window_bits=999999999999999999999999");
+        reject("permessage-deflate; server_max_window_bits=9a");
+
+        // duplicate parameters
+        reject("permessage-deflate; client_max_window_bits=8; client_max_window_bits=8");
+
+        // optional value excluded
+        accept("permessage-deflate; client_max_window_bits");
+        BEAST_EXPECT(po.client_max_window_bits == -1);
+        accept("permessage-deflate; client_max_window_bits=");
+        BEAST_EXPECT(po.client_max_window_bits == -1);
+
+        // invalid value
+        reject("permessage-deflate; client_max_window_bits=-1");
+        reject("permessage-deflate; client_max_window_bits=7");
+        reject("permessage-deflate; client_max_window_bits=16");
+        reject("permessage-deflate; client_max_window_bits=999999999999999999999999");
+
+        // duplicate parameters
+        reject("permessage-deflate; server_no_context_takeover; server_no_context_takeover");
+
+        // valueless parameter
+        accept("permessage-deflate; server_no_context_takeover");
+        BEAST_EXPECT(po.server_no_context_takeover);
+        accept("permessage-deflate; server_no_context_takeover=");
+        BEAST_EXPECT(po.server_no_context_takeover);
+
+        // disallowed value
+        reject("permessage-deflate; server_no_context_takeover=-1");
+        reject("permessage-deflate; server_no_context_takeover=x");
+        reject("permessage-deflate; server_no_context_takeover=\"yz\"");
+        reject("permessage-deflate; server_no_context_takeover=999999999999999999999999");
+
+        // duplicate parameters
+        reject("permessage-deflate; client_no_context_takeover; client_no_context_takeover");
+
+        // valueless parameter
+        accept("permessage-deflate; client_no_context_takeover");
+        BEAST_EXPECT(po.client_no_context_takeover);
+        accept("permessage-deflate; client_no_context_takeover=");
+        BEAST_EXPECT(po.client_no_context_takeover);
+
+        // disallowed value
+        reject("permessage-deflate; client_no_context_takeover=-1");
+        reject("permessage-deflate; client_no_context_takeover=x");
+        reject("permessage-deflate; client_no_context_takeover=\"yz\"");
+        reject("permessage-deflate; client_no_context_takeover=999999999999999999999999");
+
+        // unknown extension parameter
+        reject("permessage-deflate; unknown");
+        reject("permessage-deflate; unknown=");
+        reject("permessage-deflate; unknown=1");
+        reject("permessage-deflate; unknown=x");
+        reject("permessage-deflate; unknown=\"xy\"");
+    }
+
+    void
+    testExtWrite()
+    {
+        detail::pmd_offer po;
+
+        auto const check =
+        [&](string_view match)
+        {
+            http::fields f;
+            detail::pmd_write(f, po);
+            BEAST_EXPECT(
+                f[http::field::sec_websocket_extensions]
+                    == match);
+        };
+
+        po.accept = true;
+        po.server_max_window_bits = 0;
+        po.client_max_window_bits = 0;
+        po.server_no_context_takeover = false;
+        po.client_no_context_takeover = false;
+
+        check("permessage-deflate");
+
+        po.server_max_window_bits = 10;
+        check("permessage-deflate; server_max_window_bits=10");
+
+        po.server_max_window_bits = -1;
+        check("permessage-deflate; server_max_window_bits");
+
+        po.server_max_window_bits = 0;
+        po.client_max_window_bits = 10;
+        check("permessage-deflate; client_max_window_bits=10");
+
+        po.client_max_window_bits = -1;
+        check("permessage-deflate; client_max_window_bits");
+
+        po.client_max_window_bits = 0;
+        po.server_no_context_takeover = true;
+        check("permessage-deflate; server_no_context_takeover");
+
+        po.server_no_context_takeover = false;
+        po.client_no_context_takeover = true;
+        check("permessage-deflate; client_no_context_takeover");
+    }
+
+    void
+    testExtNegotiate()
+    {
+        permessage_deflate pmd;
+
+        auto const reject =
+        [&](
+            string_view offer)
+        {
+            detail::pmd_offer po;
+            {
+                http::fields f;
+                f.set(http::field::sec_websocket_extensions, offer);
+                detail::pmd_read(po, f);
+            }
+            http::fields f;
+            detail::pmd_offer config;
+            detail::pmd_negotiate(f, config, po, pmd);
+            BEAST_EXPECT(! config.accept);
+        };
+
+        auto const accept =
+        [&](
+            string_view offer,
+            string_view result)
+        {
+            detail::pmd_offer po;
+            {
+                http::fields f;
+                f.set(http::field::sec_websocket_extensions, offer);
+                detail::pmd_read(po, f);
+            }
+            http::fields f;
+            detail::pmd_offer config;
+            detail::pmd_negotiate(f, config, po, pmd);
+            auto const got =
+                f[http::field::sec_websocket_extensions];
+            BEAST_EXPECTS(got == result, got);
+            {
+                detail::pmd_offer poc;
+                detail::pmd_read(poc, f);
+                detail::pmd_normalize(poc);
+                BEAST_EXPECT(poc.accept);
+            }
+            BEAST_EXPECT(config.server_max_window_bits != 0);
+            BEAST_EXPECT(config.client_max_window_bits != 0);
+        };
+
+        pmd.server_enable = true;
+        pmd.server_max_window_bits = 15;
+        pmd.client_max_window_bits = 15;
+        pmd.server_no_context_takeover = false;
+        pmd.client_no_context_takeover = false;
+
+        // default
+        accept(
+            "permessage-deflate",
+            "permessage-deflate");
+
+        // non-default server_max_window_bits
+        accept(
+            "permessage-deflate; server_max_window_bits=14",
+            "permessage-deflate; server_max_window_bits=14");
+
+        // explicit default server_max_window_bits
+        accept(
+            "permessage-deflate; server_max_window_bits=15",
+            "permessage-deflate");
+
+        // minimum window size of 8 bits (a zlib bug)
+        accept(
+            "permessage-deflate; server_max_window_bits=8",
+            "permessage-deflate; server_max_window_bits=9");
+
+        // non-default server_max_window_bits setting
+        pmd.server_max_window_bits = 10;
+        accept(
+            "permessage-deflate",
+            "permessage-deflate; server_max_window_bits=10");
+
+        // clamped server_max_window_bits setting #1
+        pmd.server_max_window_bits = 10;
+        accept(
+            "permessage-deflate; server_max_window_bits=14",
+            "permessage-deflate; server_max_window_bits=10");
+
+        // clamped server_max_window_bits setting #2
+        pmd.server_max_window_bits=8;
+        accept(
+            "permessage-deflate; server_max_window_bits=14",
+            "permessage-deflate; server_max_window_bits=9");
+
+        pmd.server_max_window_bits = 15;
+
+        // present with no value
+        accept(
+            "permessage-deflate; client_max_window_bits",
+            "permessage-deflate");
+
+        // present with no value, non-default setting
+        pmd.client_max_window_bits = 10;
+        accept(
+            "permessage-deflate; client_max_window_bits",
+            "permessage-deflate; client_max_window_bits=10");
+
+        // absent, non-default setting
+        pmd.client_max_window_bits = 10;
+        reject(
+            "permessage-deflate");
+    }
+
+    void
+    testMoveOnly()
+    {
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.async_handshake("", "", move_only_handler{});
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    testAsync()
+    {
+        using tcp = net::ip::tcp;
+
+        net::io_context ioc;
+
+        // success, no timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        // success, timeout enabled
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        // timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_handshake("test", "/",
+                test::fail_handler(beast::error::timeout));
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(stream_base::timeout{
+                std::chrono::milliseconds(50),
+                stream_base::none(),
+                false});
+            ws1.async_handshake("test", "/",
+                test::fail_handler(beast::error::timeout));
+            test::run_for(ioc, std::chrono::seconds(1));
+        }
+
+        // abandoned operation
+
+        {
+            {
+                stream<tcp::socket> ws1(ioc);
+                ws1.async_handshake("test", "/",
+                    test::fail_handler(
+                        net::error::operation_aborted));
+            }
+            test::run(ioc);
+        }
+    }
+
+    // https://github.com/boostorg/beast/issues/1460
+    void
+    testIssue1460()
+    {
+        net::io_context ioc;
+        auto const make_big = [](response_type& res)
+        {
+            res.insert("Date", "Mon, 18 Feb 2019 12:48:36 GMT");
+            res.insert("Set-Cookie",
+                "__cfduid=de1e209833e7f05aaa1044c6d448994761550494116; "
+                "expires=Tue, 18-Feb-20 12:48:36 GMT; path=/; domain=.cryptofacilities.com; HttpOnly; Secure");
+            res.insert("Feature-Policy",
+                "accelerometer 'none'; ambient-light-sensor 'none'; "
+                "animations 'none'; autoplay 'none'; camera 'none'; document-write 'none'; "
+                "encrypted-media 'none'; geolocation 'none'; gyroscope 'none'; legacy-image-formats 'none'; "
+                "magnetometer 'none'; max-downscaling-image 'none'; microphone 'none'; midi 'none'; "
+                "payment 'none'; picture-in-picture 'none'; unsized-media 'none'; usb 'none'; vr 'none'");
+            res.insert("Referrer-Policy", "origin");
+            res.insert("Strict-Transport-Security", "max-age=15552000; includeSubDomains; preload");
+            res.insert("X-Content-Type-Options", "nosniff");
+            res.insert("Content-Security-Policy",
+                "default-src 'none'; manifest-src 'self'; object-src 'self'; "
+                "child-src 'self' https://www.google.com; "
+                "font-src 'self' https://use.typekit.net https://maxcdn.bootstrapcdn.com https://fonts.gstatic.com data:; "
+                "script-src 'self' 'unsafe-inline' 'unsafe-eval' https://ajax.cloudflare.com https://use.typekit.net "
+                "https://www.googletagmanager.com https://www.google-analytics.com https://www.google.com https://www.googleadservices.com "
+                "https://googleads.g.doubleclick.net https://www.gstatic.com; connect-src 'self' wss://*.cryptofacilities.com/ws/v1 wss://*.cryptofacilities.com/ws/indices "
+                "https://uat.cryptofacilities.com https://uat.cf0.io wss://*.cf0.io https://www.googletagmanager.com https://www.google-analytics.com https://www.google.com "
+                "https://fonts.googleapis.com https://google-analytics.com https://use.typekit.net https://p.typekit.net https://fonts.gstatic.com https://www.gstatic.com "
+                "https://chart.googleapis.com; worker-src 'self'; img-src 'self' https://chart.googleapis.com https://p.typekit.net https://www.google.co.uk https://www.google.com "
+                "https://www.google-analytics.com https://stats.g.doubleclick.net data:; style-src 'self' 'unsafe-inline' https://use.typekit.net https://p.typekit.net "
+                "https://fonts.googleapis.com https://maxcdn.bootstrapcdn.com");
+            res.insert("X-Frame-Options", "SAMEORIGIN");
+            res.insert("X-Xss-Protection", "1; mode=block");
+            res.insert("Expect-CT", "max-age=604800, report-uri=\"https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct\"");
+            res.insert("Server", "cloudflare");
+            res.insert("CF-RAY", "4ab09be1a9d0cb06-ARN");
+            res.insert("Bulk",
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************"
+                "****************************************************************************************************");
+        };
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws2.set_option(stream_base::decorator(make_big));
+            error_code ec;
+            ws2.async_accept(test::success_handler());
+            std::thread t(
+                [&ioc]
+                {
+                    ioc.run();
+                    ioc.restart();
+                });
+            ws1.handshake("test", "/", ec);
+            BEAST_EXPECTS(! ec, ec.message());
+            t.join();
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws2.set_option(stream_base::decorator(make_big));
+            ws2.async_accept(test::success_handler());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ioc.run();
+            ioc.restart();
+        }
+    }
+
+    void
+    run() override
+    {
+        testHandshake();
+        testExtRead();
+        testExtWrite();
+        testExtNegotiate();
+        testMoveOnly();
+        testAsync();
+        testIssue1460();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,handshake);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/option.cpp b/src/boost/libs/beast/test/beast/websocket/option.cpp
new file mode 100644
index 000000000..5eddbbec8
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/option.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/option.hpp>
diff --git a/src/boost/libs/beast/test/beast/websocket/ping.cpp b/src/boost/libs/beast/test/beast/websocket/ping.cpp
new file mode 100644
index 000000000..1810927bc
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/ping.cpp
@@ -0,0 +1,499 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/_experimental/test/tcp.hpp>
+
+#include "test.hpp"
+
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class ping_test : public websocket_test_suite
+{
+public:
+    template<class Wrap>
+    void
+    doTestPing(Wrap const& w)
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = false;
+        pmd.server_enable = false;
+
+        // ping
+        doTest(pmd, [&](ws_type& ws)
+        {
+            w.ping(ws, {});
+        });
+
+        // pong
+        doTest(pmd, [&](ws_type& ws)
+        {
+            w.pong(ws, {});
+        });
+
+        // ping, already closed
+        {
+            echo_server es{log};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            ws.close({});
+            try
+            {
+                w.ping(ws, {});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == net::error::operation_aborted,
+                    se.code().message());
+            }
+        }
+
+        // pong, already closed
+        {
+            echo_server es{log};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            ws.close({});
+            try
+            {
+                w.pong(ws, {});
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == net::error::operation_aborted,
+                    se.code().message());
+            }
+        }
+    }
+
+    void
+    testPing()
+    {
+        doTestPing(SyncClient{});
+
+        yield_to([&](yield_context yield)
+        {
+            doTestPing(AsyncClient{yield});
+        });
+    }
+
+    void
+    testSuspend()
+    {
+        // suspend on write
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_write(sbuf("Hello, world"),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 12);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read ping + message
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a ping and message to the input
+            ws.next_layer().append(string_view{
+                "\x89\x00" "\x81\x01*", 5});
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read bad message
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add an invalid frame to the input
+            ws.next_layer().append(string_view{
+                "\x09\x00", 2});
+
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec != error::bad_control_fragment)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read close #1
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a close frame to the input
+            ws.next_layer().append(string_view{
+                "\x88\x00", 2});
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec != error::closed)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read close #2
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log, kind::async};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // Cause close to be received
+            es.async_close();
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec != error::closed)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_ping({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // don't ping on close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            error_code ec;
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_write(sbuf("*"),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 1);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ws.async_close({},
+                [&](error_code)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+            BEAST_EXPECT(count == 3);
+        });
+
+        // suspend idle ping
+        {
+            using socket_type =
+                net::basic_stream_socket<
+                    net::ip::tcp,
+                    net::executor>;
+            net::io_context ioc;
+            stream<socket_type> ws1(ioc);
+            stream<socket_type> ws2(ioc);
+            ws1.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::seconds(0),
+                true});
+            test::connect(
+                ws1.next_layer(),
+                ws2.next_layer());
+            ws1.async_handshake("localhost", "/",
+                [](error_code){});
+            ws2.async_accept([](error_code){});
+            ioc.run();
+            ioc.restart();
+            flat_buffer b1;
+            auto mb = b1.prepare(65536);
+            std::memset(mb.data(), 0, mb.size());
+            b1.commit(65536);
+            ws1.async_write(b1.data(),
+                [&](error_code, std::size_t){});
+            BEAST_EXPECT(
+                ws1.impl_->wr_block.is_locked());
+            ws1.async_read_some(net::mutable_buffer{},
+                [&](error_code, std::size_t){});
+            ioc.run();
+            ioc.restart();
+            flat_buffer b2;
+            ws2.async_read(b2,
+                [&](error_code, std::size_t){});
+            ioc.run();
+        }
+        //);
+
+        {
+            echo_server es{log, kind::async};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+
+            // Cause close to be received
+            es.async_close();
+            
+            multi_buffer b;
+            std::size_t count = 0;
+            // Read a close frame.
+            // Sends a close frame, blocking writes.
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    // Read should complete with error::closed
+                    ++count;
+                    BEAST_EXPECTS(ec == error::closed,
+                        ec.message());
+                });
+            if(! BEAST_EXPECT(run_until(ioc, 100,
+                    [&]{ return ws.impl_->wr_close; })))
+                return;
+            // Try to ping
+            ws.async_ping("payload",
+                [&](error_code ec)
+                {
+                    // Pings after a close are aborted
+                    ++count;
+                    BEAST_EXPECTS(ec == net::
+                        error::operation_aborted,
+                            ec.message());
+                    // Subsequent calls to close are aborted
+                    ws.async_close({},
+                        [&](error_code ec)
+                        {
+                            ++count;
+                            BEAST_EXPECTS(ec == net::
+                                error::operation_aborted,
+                                    ec.message());
+                        });
+                });
+            static std::size_t constexpr limit = 100;
+            std::size_t n;
+            for(n = 0; n < limit; ++n)
+            {
+                if(count >= 3)
+                    break;
+                ioc.run_one();
+            }
+            BEAST_EXPECT(n < limit);
+            ioc.run();
+        }
+    }
+
+    void
+    testMoveOnly()
+    {
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.async_ping({}, move_only_handler{});
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    run() override
+    {
+        testPing();
+        testSuspend();
+        testMoveOnly();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,ping);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/read1.cpp b/src/boost/libs/beast/test/beast/websocket/read1.cpp
new file mode 100644
index 000000000..1e98e4543
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/read1.cpp
@@ -0,0 +1,153 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/test/tcp.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class read1_test : public unit_test::suite
+{
+public:
+    void
+    testTimeout()
+    {
+        using tcp = net::ip::tcp;
+
+        net::io_context ioc;
+
+        // success
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            flat_buffer b;
+            ws1.async_write(net::const_buffer("Hello, world!", 13),
+                test::success_handler());
+            ws2.async_read(b, test::success_handler());
+            test::run(ioc);
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            flat_buffer b;
+            ws1.async_write(net::const_buffer("Hello, world!", 13),
+                test::success_handler());
+            ws2.async_read(b, test::success_handler());
+            test::run(ioc);
+        }
+
+        // success, timeout enabled
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            flat_buffer b;
+            ws1.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::milliseconds(50),
+                false});
+            ws1.async_read(b, test::success_handler());
+            ws2.async_write(net::const_buffer("Hello, world!", 13),
+                test::success_handler());
+            test::run(ioc);
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            flat_buffer b;
+            ws1.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::milliseconds(50),
+                false});
+            ws1.async_read(b, test::success_handler());
+            ws2.async_write(net::const_buffer("Hello, world!", 13),
+                test::success_handler());
+            test::run(ioc);
+        }
+
+        // timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            flat_buffer b;
+            ws1.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::milliseconds(50),
+                false});
+            ws1.async_read(b, test::fail_handler(
+                beast::error::timeout));
+            test::run(ioc);
+        }
+
+        {
+            stream<test::stream> ws1(ioc);
+            stream<test::stream> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_handshake("test", "/", test::success_handler());
+            ws2.async_accept(test::success_handler());
+            test::run(ioc);
+
+            flat_buffer b;
+            ws1.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::milliseconds(50),
+                false});
+            ws1.async_read(b, test::fail_handler(
+                beast::error::timeout));
+            test::run(ioc);
+        }
+    }
+
+    void
+    run() override
+    {
+        testTimeout();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,read1);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/read2.cpp b/src/boost/libs/beast/test/beast/websocket/read2.cpp
new file mode 100644
index 000000000..0f211fcf2
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/read2.cpp
@@ -0,0 +1,687 @@
+
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include "test.hpp"
+
+#include <boost/asio/write.hpp>
+
+#include <boost/config/workaround.hpp>
+#if BOOST_WORKAROUND(BOOST_GCC, < 80200)
+#define BOOST_BEAST_SYMBOL_HIDDEN __attribute__ ((visibility("hidden")))
+#else
+#define BOOST_BEAST_SYMBOL_HIDDEN
+#endif
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class BOOST_BEAST_SYMBOL_HIDDEN read2_test
+    : public websocket_test_suite
+{
+public:
+    template<class Wrap, bool deflateSupported>
+    void
+    doReadTest(
+        Wrap const& w,
+        ws_type_t<deflateSupported>& ws,
+        close_code code)
+    {
+        try
+        {
+            multi_buffer b;
+            w.read(ws, b);
+            fail("", __FILE__, __LINE__);
+        }
+        catch(system_error const& se)
+        {
+            if(se.code() != error::closed)
+                throw;
+            BEAST_EXPECT(
+                ws.reason().code == code);
+        }
+    }
+
+    template<class Wrap, bool deflateSupported>
+    void
+    doFailTest(
+        Wrap const& w,
+        ws_type_t<deflateSupported>& ws,
+        error_code ev)
+    {
+        try
+        {
+            multi_buffer b;
+            w.read(ws, b);
+            fail("", __FILE__, __LINE__);
+        }
+        catch(system_error const& se)
+        {
+            if(se.code() != ev)
+                throw;
+        }
+    }
+
+    template<bool deflateSupported = true, class Wrap>
+    void
+    doTestRead(Wrap const& w)
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = false;
+        pmd.server_enable = false;
+
+        // already closed
+        {
+            echo_server es{log};
+            stream<test::stream, deflateSupported> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            ws.close({});
+            try
+            {
+                multi_buffer b;
+                w.read(ws, b);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == net::error::operation_aborted,
+                    se.code().message());
+            }
+        }
+
+        // empty, fragmented message
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.next_layer().append(
+                string_view(
+                    "\x01\x00" "\x80\x00", 4));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(b.size() == 0);
+        });
+
+        // two part message
+        // triggers "fill the read buffer first"
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            w.write_raw(ws, sbuf(
+                "\x01\x81\xff\xff\xff\xff"));
+            w.write_raw(ws, sbuf(
+                "\xd5"));
+            w.write_raw(ws, sbuf(
+                "\x80\x81\xff\xff\xff\xff\xd5"));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == "**");
+        });
+
+        // ping
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            put(ws.next_layer().buffer(), cbuf(
+                {0x89, 0x00}));
+            bool invoked = false;
+            ws.control_callback(
+                [&](frame_type kind, string_view)
+                {
+                    BEAST_EXPECT(! invoked);
+                    BEAST_EXPECT(kind == frame_type::ping);
+                    invoked = true;
+                });
+            w.write(ws, sbuf("Hello"));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(invoked);
+            BEAST_EXPECT(ws.got_text());
+            BEAST_EXPECT(buffers_to_string(b.data()) == "Hello");
+        });
+
+        // ping
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            put(ws.next_layer().buffer(), cbuf(
+                {0x88, 0x00}));
+            bool invoked = false;
+            ws.control_callback(
+                [&](frame_type kind, string_view)
+                {
+                    BEAST_EXPECT(! invoked);
+                    BEAST_EXPECT(kind == frame_type::close);
+                    invoked = true;
+                });
+            w.write(ws, sbuf("Hello"));
+            doReadTest(w, ws, close_code::none);
+        });
+
+        // ping then message
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            bool once = false;
+            ws.control_callback(
+                [&](frame_type kind, string_view s)
+                {
+                    BEAST_EXPECT(kind == frame_type::pong);
+                    BEAST_EXPECT(! once);
+                    once = true;
+                    BEAST_EXPECT(s == "");
+                });
+            w.ping(ws, "");
+            ws.binary(true);
+            w.write(ws, sbuf("Hello"));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(once);
+            BEAST_EXPECT(ws.got_binary());
+            BEAST_EXPECT(buffers_to_string(b.data()) == "Hello");
+        });
+
+        // ping then fragmented message
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            bool once = false;
+            ws.control_callback(
+                [&](frame_type kind, string_view s)
+                {
+                    BEAST_EXPECT(kind == frame_type::pong);
+                    BEAST_EXPECT(! once);
+                    once = true;
+                    BEAST_EXPECT(s == "payload");
+                });
+            ws.ping("payload");
+            w.write_some(ws, false, sbuf("Hello, "));
+            w.write_some(ws, false, sbuf(""));
+            w.write_some(ws, true, sbuf("World!"));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(once);
+            BEAST_EXPECT(buffers_to_string(b.data()) == "Hello, World!");
+        });
+
+        // masked message, big
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log, kind::async_client};
+            ws_type_t<deflateSupported> ws{ts};
+            ws.next_layer().connect(es.stream());
+            ws.set_option(pmd);
+            es.async_handshake();
+            try
+            {
+                w.accept(ws);
+                std::string const s(2000, '*');
+                ws.auto_fragment(false);
+                ws.binary(false);
+                w.write(ws, net::buffer(s));
+                multi_buffer b;
+                w.read(ws, b);
+                BEAST_EXPECT(ws.got_text());
+                BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                ws.next_layer().close();
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+        });
+
+        // close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log, kind::async};
+            net::io_context ioc;
+            stream<test::stream, deflateSupported> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // Cause close to be received
+            es.async_close();
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec != error::closed)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+            BEAST_EXPECT(count == 1);
+        });
+
+        // already closed
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            w.close(ws, {});
+            multi_buffer b;
+            doFailTest(w, ws,
+                net::error::operation_aborted);
+        });
+
+        // buffer overflow
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            std::string const s = "Hello, world!";
+            ws.auto_fragment(false);
+            ws.binary(false);
+            w.write(ws, net::buffer(s));
+            try
+            {
+                multi_buffer b(3);
+                w.read(ws, b);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                if(se.code() != error::buffer_overflow)
+                    throw;
+            }
+        });
+
+        // bad utf8, big
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            auto const s = std::string(2000, '*') +
+                random_string();
+            ws.text(true);
+            w.write(ws, net::buffer(s));
+            doReadTest(w, ws, close_code::bad_payload);
+        });
+
+        // invalid fixed frame header
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            w.write_raw(ws, cbuf(
+                {0x8f, 0x80, 0xff, 0xff, 0xff, 0xff}));
+            doReadTest(w, ws, close_code::protocol_error);
+        });
+
+        // bad close
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            put(ws.next_layer().buffer(), cbuf(
+                {0x88, 0x02, 0x03, 0xed}));
+            doFailTest(w, ws, error::bad_close_code);
+        });
+
+        // message size above 2^64
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            w.write_some(ws, false, sbuf("*"));
+            w.write_raw(ws, cbuf(
+                {0x80, 0xff, 0xff, 0xff, 0xff, 0xff,
+                0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}));
+            doReadTest(w, ws, close_code::too_big);
+        });
+
+        // message size exceeds max
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.read_message_max(1);
+            w.write(ws, sbuf("**"));
+            doFailTest(w, ws, error::message_too_big);
+        });
+
+        // bad utf8
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            put(ws.next_layer().buffer(), cbuf(
+                {0x81, 0x06, 0x03, 0xea, 0xf0, 0x28, 0x8c, 0xbc}));
+            doFailTest(w, ws, error::bad_frame_payload);
+        });
+
+        // incomplete utf8
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            std::string const s =
+                "Hello, world!" "\xc0";
+            w.write(ws, net::buffer(s));
+            doReadTest(w, ws, close_code::bad_payload);
+        });
+
+        // incomplete utf8, big
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            std::string const s =
+                "\x81\x7e\x0f\xa1" +
+                std::string(4000, '*') + "\xc0";
+            ws.next_layer().append(s);
+            multi_buffer b;
+            try
+            {
+                do
+                {
+                    b.commit(w.read_some(ws, b.prepare(4000)));
+                }
+                while(! ws.is_message_done());
+            }
+            catch(system_error const& se)
+            {
+                if(se.code() != error::bad_frame_payload)
+                    throw;
+            }
+        });
+
+        // close frames
+        {
+            auto const check =
+            [&](error_code ev, string_view s)
+            {
+                echo_server es{log};
+                stream<test::stream, deflateSupported> ws{ioc_};
+                ws.next_layer().connect(es.stream());
+                w.handshake(ws, "localhost", "/");
+                ws.next_layer().append(s);
+                static_buffer<1> b;
+                try
+                {
+                    w.read(ws, b);
+                    fail("", __FILE__, __LINE__);
+                }
+                catch(system_error const& se)
+                {
+                    BEAST_EXPECTS(se.code() == ev,
+                        se.code().message());
+                }
+                ws.next_layer().close();
+            };
+
+            // payload length 1
+            check(error::bad_close_size,
+                "\x88\x01\x01");
+
+            // invalid close code 1005
+            check(error::bad_close_code,
+                "\x88\x02\x03\xed");
+
+            // invalid utf8
+            check(error::bad_close_payload,
+                "\x88\x06\xfc\x15\x0f\xd7\x73\x43");
+
+            // good utf8
+            check(error::closed,
+                "\x88\x06\xfc\x15utf8");
+        }
+    }
+
+    template<class Wrap>
+    void
+    doTestReadDeflate(Wrap const& w)
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = true;
+        pmd.server_enable = true;
+        pmd.client_max_window_bits = 9;
+        pmd.server_max_window_bits = 9;
+        pmd.compLevel = 1;
+
+        // message size limit
+        doTest<true>(pmd,
+        [&](ws_type_t<true>& ws)
+        {
+            std::string const s = std::string(128, '*');
+            w.write(ws, net::buffer(s));
+            ws.read_message_max(32);
+            doFailTest(w, ws, error::message_too_big);
+        });
+
+        // invalid inflate block
+        doTest<true>(pmd,
+        [&](ws_type_t<true>& ws)
+        {
+            auto const& s = random_string();
+            ws.binary(true);
+            ws.next_layer().append(
+                "\xc2\x40" + s.substr(0, 64));
+            flat_buffer b;
+            try
+            {
+                w.read(ws, b);
+            }
+            catch(system_error const& se)
+            {
+                if(se.code() == test::error::test_failure)
+                    throw;
+                BEAST_EXPECTS(se.code().category() ==
+                    make_error_code(static_cast<
+                        zlib::error>(0)).category(),
+                    se.code().message());
+            }
+            catch(...)
+            {
+                throw;
+            }
+        });
+
+        // no_context_takeover
+        pmd.server_no_context_takeover = true;
+        doTest<true>(pmd,
+        [&](ws_type_t<true>& ws)
+        {
+            auto const& s = random_string();
+            ws.binary(true);
+            w.write(ws, net::buffer(s));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+        pmd.client_no_context_takeover = false;
+    }
+
+    template<class Wrap>
+    void
+    doTestRead(
+        permessage_deflate const& pmd,
+        Wrap const& w)
+    {
+        // message
+        doTest(pmd, [&](ws_type& ws)
+        {
+            std::string const s = "Hello, world!";
+            ws.auto_fragment(false);
+            ws.binary(false);
+            w.write(ws, net::buffer(s));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(ws.got_text());
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // masked message
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log, kind::async_client};
+            ws_type ws{ts};
+            ws.next_layer().connect(es.stream());
+            ws.set_option(pmd);
+            es.async_handshake();
+            try
+            {
+                w.accept(ws);
+                std::string const s = "Hello, world!";
+                ws.auto_fragment(false);
+                ws.binary(false);
+                w.write(ws, net::buffer(s));
+                multi_buffer b;
+                w.read(ws, b);
+                BEAST_EXPECT(ws.got_text());
+                BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                ws.next_layer().close();
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+        });
+
+        // empty message
+        doTest(pmd, [&](ws_type& ws)
+        {
+            std::string const s = "";
+            ws.text(true);
+            w.write(ws, net::buffer(s));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(ws.got_text());
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // partial message
+        doTest(pmd, [&](ws_type& ws)
+        {
+            std::string const s = "Hello";
+            w.write(ws, net::buffer(s));
+            char buf[3];
+            auto const bytes_written =
+                w.read_some(ws, net::buffer(buf, sizeof(buf)));
+            BEAST_EXPECT(bytes_written > 0);
+            BEAST_EXPECT(
+                string_view(buf, 3).substr(0, bytes_written) ==
+                    s.substr(0, bytes_written));
+        });
+
+        // partial message, dynamic buffer
+        doTest(pmd, [&](ws_type& ws)
+        {
+            std::string const s = "Hello, world!";
+            w.write(ws, net::buffer(s));
+            multi_buffer b;
+            auto bytes_written =
+                w.read_some(ws, 3, b);
+            BEAST_EXPECT(bytes_written > 0);
+            BEAST_EXPECT(buffers_to_string(b.data()) ==
+                s.substr(0, b.size()));
+            w.read_some(ws, 256, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // big message
+        doTest(pmd, [&](ws_type& ws)
+        {
+            auto const& s = random_string();
+            ws.binary(true);
+            w.write(ws, net::buffer(s));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // message, bad utf8
+        doTest(pmd, [&](ws_type& ws)
+        {
+            std::string const s = "\x03\xea\xf0\x28\x8c\xbc";
+            ws.auto_fragment(false);
+            ws.text(true);
+            w.write(ws, net::buffer(s));
+            doReadTest(w, ws, close_code::bad_payload);
+        });
+    }
+
+    void
+    testRead()
+    {
+        doTestRead<false>(SyncClient{});
+        doTestRead<true>(SyncClient{});
+        doTestReadDeflate(SyncClient{});
+        yield_to([&](yield_context yield)
+        {
+            doTestRead<false>(AsyncClient{yield});
+            doTestRead<true>(AsyncClient{yield});
+            doTestReadDeflate(AsyncClient{yield});
+        });
+
+        permessage_deflate pmd;
+        pmd.client_enable = false;
+        pmd.server_enable = false;
+        doTestRead(pmd, SyncClient{});
+        yield_to([&](yield_context yield)
+        {
+            doTestRead(pmd, AsyncClient{yield});
+        });
+
+        pmd.client_enable = true;
+        pmd.server_enable = true;
+        pmd.client_max_window_bits = 9;
+        pmd.server_max_window_bits = 9;
+        pmd.compLevel = 1;
+        doTestRead(pmd, SyncClient{});
+        yield_to([&](yield_context yield)
+        {
+            doTestRead(pmd, AsyncClient{yield});
+        });
+
+        // Read close frames
+        {
+            auto const check =
+            [&](error_code ev, string_view s)
+            {
+                echo_server es{log};
+                stream<test::stream> ws{ioc_};
+                ws.next_layer().connect(es.stream());
+                ws.handshake("localhost", "/");
+                ws.next_layer().append(s);
+                static_buffer<1> b;
+                error_code ec;
+                ws.read(b, ec);
+                BEAST_EXPECTS(ec == ev, ec.message());
+                ws.next_layer().close();
+            };
+
+            // payload length 1
+            check(error::bad_close_size,
+                "\x88\x01\x01");
+
+            // invalid close code 1005
+            check(error::bad_close_code,
+                "\x88\x02\x03\xed");
+
+            // invalid utf8
+            check(error::bad_close_payload,
+                "\x88\x06\xfc\x15\x0f\xd7\x73\x43");
+
+            // good utf8
+            check(error::closed,
+                "\x88\x06\xfc\x15utf8");
+        }
+    }
+
+    void
+    run() override
+    {
+        testRead();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,read2);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/read3.cpp b/src/boost/libs/beast/test/beast/websocket/read3.cpp
new file mode 100644
index 000000000..e9559d440
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/read3.cpp
@@ -0,0 +1,655 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include "test.hpp"
+
+#include <boost/asio/buffer.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+#include <boost/asio/write.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class read3_test : public websocket_test_suite
+{
+public:
+    void
+    testSuspend()
+    {
+        // suspend on read block
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            while(! ws.impl_->rd_block.is_locked())
+                ioc.run_one();
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on release read block
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BOOST_ASSERT(ws.impl_->rd_block.is_locked());
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on write pong
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // insert a ping
+            ws.next_layer().append(string_view(
+                "\x89\x00", 2));
+            std::size_t count = 0;
+            std::string const s = "Hello, world";
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                    ++count;
+                });
+            BEAST_EXPECT(ws.impl_->rd_block.is_locked());
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == s.size());
+                    ++count;
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // Ignore ping when closing
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            // insert fragmented message with
+            // a ping in between the frames.
+            ws.next_layer().append(string_view(
+                "\x01\x01*"
+                "\x89\x00"
+                "\x80\x01*", 8));
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(buffers_to_string(b.data()) == "**");
+                    BEAST_EXPECT(++count == 1);
+                    b.consume(b.size());
+                    ws.async_read(b,
+                        [&](error_code ec, std::size_t)
+                        {
+                            if(ec != net::error::operation_aborted)
+                                BOOST_THROW_EXCEPTION(
+                                    system_error{ec});
+                            BEAST_EXPECT(++count == 3);
+                        });
+                });
+            BEAST_EXPECT(ws.impl_->rd_block.is_locked());
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ioc.run();
+            BEAST_EXPECT(count == 3);
+        });
+
+        // See if we are already closing
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            // insert fragmented message with
+            // a close in between the frames.
+            ws.next_layer().append(string_view(
+                "\x01\x01*"
+                "\x88\x00"
+                "\x80\x01*", 8));
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 2);
+                });
+            BEAST_EXPECT(ws.impl_->rd_block.is_locked());
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(++count == 1);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+    }
+
+    void
+    testParseFrame()
+    {
+        auto const bad =
+            [&](string_view s)
+            {
+                echo_server es{log};
+                net::io_context ioc;
+                stream<test::stream> ws{ioc};
+                ws.next_layer().connect(es.stream());
+                ws.handshake("localhost", "/");
+                ws.next_layer().append(s);
+                error_code ec;
+                multi_buffer b;
+                ws.read(b, ec);
+                BEAST_EXPECT(ec);
+            };
+
+        // chopped frame header
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            ws.next_layer().append(
+                "\x81\x7e\x01");
+            std::size_t count = 0;
+            std::string const s(257, '*');
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    BEAST_EXPECTS(! ec, ec.message());
+                    BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                });
+            ioc.run_one();
+            es.stream().write_some(
+                net::buffer("\x01" + s));
+            ioc.run();
+            BEAST_EXPECT(count == 1);
+        }
+
+        // new data frame when continuation expected
+        bad("\x01\x01*" "\x81\x01*");
+
+        // reserved bits not cleared
+        bad("\xb1\x01*");
+        bad("\xc1\x01*");
+        bad("\xd1\x01*");
+
+        // continuation without an active message
+        bad("\x80\x01*");
+
+        // reserved bits not cleared (cont)
+        bad("\x01\x01*" "\xb0\x01*");
+        bad("\x01\x01*" "\xc0\x01*");
+        bad("\x01\x01*" "\xd0\x01*");
+
+        // reserved opcode
+        bad("\x83\x01*");
+
+        // fragmented control message
+        bad("\x09\x01*");
+
+        // invalid length for control message
+        bad("\x89\x7e\x01\x01");
+
+        // reserved bits not cleared (control)
+        bad("\xb9\x01*");
+        bad("\xc9\x01*");
+        bad("\xd9\x01*");
+
+        // unmasked frame from client
+        {
+            echo_server es{log, kind::async_client};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.next_layer().connect(es.stream());
+            es.async_handshake();
+            ws.accept();
+            ws.next_layer().append(
+                "\x81\x01*");
+            error_code ec;
+            multi_buffer b;
+            ws.read(b, ec);
+            BEAST_EXPECT(ec);
+        }
+
+        // masked frame from server
+        bad("\x81\x80\xff\xff\xff\xff");
+
+        // chopped control frame payload
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            ws.next_layer().append(
+                "\x89\x02*");
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    BEAST_EXPECTS(! ec, ec.message());
+                    BEAST_EXPECT(buffers_to_string(b.data()) == "**");
+                });
+            ioc.run_one();
+            es.stream().write_some(
+                net::buffer(
+                    "*" "\x81\x02**"));
+            ioc.run();
+            BEAST_EXPECT(count == 1);
+        }
+
+        // length not canonical
+        bad(string_view("\x81\x7e\x00\x7d", 4));
+        bad(string_view("\x81\x7f\x00\x00\x00\x00\x00\x00\xff\xff", 10));
+    }
+
+    void
+    testIssue802()
+    {
+        for(std::size_t i = 0; i < 100; ++i)
+        {
+            echo_server es{log, kind::async};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // too-big message frame indicates payload of 2^64-1
+            net::write(ws.next_layer(), sbuf(
+                "\x81\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"));
+            multi_buffer b;
+            error_code ec;
+            ws.read(b, ec);
+            BEAST_EXPECT(ec == error::closed);
+            BEAST_EXPECT(ws.reason().code == 1009);
+        }
+    }
+
+    void
+    testIssue807()
+    {
+        echo_server es{log};
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.next_layer().connect(es.stream());
+        ws.handshake("localhost", "/");
+        ws.write(sbuf("Hello, world!"));
+        char buf[4];
+        net::mutable_buffer b{buf, 0};
+        auto const n = ws.read_some(b);
+        BEAST_EXPECT(n == 0);
+    }
+
+    /*
+        When the internal read buffer contains a control frame and
+        stream::async_read_some is called, it is possible for the control
+        callback to be invoked on the caller's stack instead of through
+        the executor associated with the final completion handler.
+    */
+    void
+    testIssue954()
+    {
+        echo_server es{log};
+        multi_buffer b;
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.next_layer().connect(es.stream());
+        ws.handshake("localhost", "/");
+        // message followed by ping
+        ws.next_layer().append({
+            "\x81\x00"
+            "\x89\x00",
+            4});
+        bool called_cb = false;
+        bool called_handler = false;
+        ws.control_callback(
+            [&called_cb](frame_type, string_view)
+            {
+                called_cb = true;
+            });
+        ws.async_read(b,
+            [&](error_code, std::size_t)
+            {
+                called_handler = true;
+            });
+        BEAST_EXPECT(! called_cb);
+        BEAST_EXPECT(! called_handler);
+        ioc.run();
+        BEAST_EXPECT(! called_cb);
+        BEAST_EXPECT(called_handler);
+        ws.async_read(b,
+            [&](error_code, std::size_t)
+            {
+            });
+        BEAST_EXPECT(! called_cb);
+    }
+
+    /*  Bishop Fox Hybrid Assessment issue 1
+
+        Happens with permessage-deflate enabled and a
+        compressed frame with the FIN bit set ends with an
+        invalid prefix.
+    */
+    void
+    testIssueBF1()
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = true;
+        pmd.server_enable = true;
+
+        // read
+#if 0
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.set_option(pmd);
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // invalid 1-byte deflate block in frame
+            net::write(ws.next_layer(), sbuf(
+                "\xc1\x81\x3a\xa1\x74\x3b\x49"));
+        }
+#endif
+        {
+            net::io_context ioc;
+            stream<test::stream> wsc{ioc};
+            stream<test::stream> wss{ioc};
+            wsc.set_option(pmd);
+            wss.set_option(pmd);
+            wsc.next_layer().connect(wss.next_layer());
+            wsc.async_handshake(
+                "localhost", "/", [](error_code){});
+            wss.async_accept([](error_code){});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(wsc.is_open());
+            BEAST_EXPECT(wss.is_open());
+            // invalid 1-byte deflate block in frame
+            net::write(wsc.next_layer(), sbuf(
+                "\xc1\x81\x3a\xa1\x74\x3b\x49"));
+            error_code ec;
+            multi_buffer b;
+            wss.read(b, ec);
+            BEAST_EXPECTS(ec == zlib::error::end_of_stream, ec.message());
+        }
+
+        // async read
+#if 0
+        {
+            echo_server es{log, kind::async};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.set_option(pmd);
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // invalid 1-byte deflate block in frame
+            net::write(ws.next_layer(), sbuf(
+                "\xc1\x81\x3a\xa1\x74\x3b\x49"));
+        }
+#endif
+        {
+            net::io_context ioc;
+            stream<test::stream> wsc{ioc};
+            stream<test::stream> wss{ioc};
+            wsc.set_option(pmd);
+            wss.set_option(pmd);
+            wsc.next_layer().connect(wss.next_layer());
+            wsc.async_handshake(
+                "localhost", "/", [](error_code){});
+            wss.async_accept([](error_code){});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(wsc.is_open());
+            BEAST_EXPECT(wss.is_open());
+            // invalid 1-byte deflate block in frame
+            net::write(wsc.next_layer(), sbuf(
+                "\xc1\x81\x3a\xa1\x74\x3b\x49"));
+            error_code ec;
+            flat_buffer b;
+            wss.async_read(b,
+                [&ec](error_code ec_, std::size_t){ ec = ec_; });
+            ioc.run();
+            BEAST_EXPECTS(ec == zlib::error::end_of_stream, ec.message());
+        }
+    }
+
+    /*  Bishop Fox Hybrid Assessment issue 2
+
+        Happens with permessage-deflate enabled,
+        and a deflate block with the BFINAL bit set
+        is encountered in a compressed payload.
+    */
+    void
+    testIssueBF2()
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = true;
+        pmd.server_enable = true;
+
+        // read
+        {
+            net::io_context ioc;
+            stream<test::stream> wsc{ioc};
+            stream<test::stream> wss{ioc};
+            wsc.set_option(pmd);
+            wss.set_option(pmd);
+            wsc.next_layer().connect(wss.next_layer());
+            wsc.async_handshake(
+                "localhost", "/", [](error_code){});
+            wss.async_accept([](error_code){});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(wsc.is_open());
+            BEAST_EXPECT(wss.is_open());
+            // contains a deflate block with BFINAL set
+            net::write(wsc.next_layer(), sbuf(
+                "\xc1\xf8\xd1\xe4\xcc\x3e\xda\xe4\xcc\x3e"
+                "\x2b\x1e\x36\xc4\x2b\x1e\x36\xc4\x2b\x1e"
+                "\x36\x3e\x35\xae\x4f\x54\x18\xae\x4f\x7b"
+                "\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e"
+                "\xd1\x1e\x36\xc4\x2b\x1e\x36\xc4\x2b\xe4"
+                "\x28\x74\x52\x8e\x05\x74\x52\xa1\xcc\x3e"
+                "\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e"
+                "\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4\x36\x3e"
+                "\xd1\xec\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e"));
+            error_code ec;
+            flat_buffer b;
+            wss.read(b, ec);
+            BEAST_EXPECTS(ec == zlib::error::end_of_stream, ec.message());
+        }
+
+        // async read
+        {
+            net::io_context ioc;
+            stream<test::stream> wsc{ioc};
+            stream<test::stream> wss{ioc};
+            wsc.set_option(pmd);
+            wss.set_option(pmd);
+            wsc.next_layer().connect(wss.next_layer());
+            wsc.async_handshake(
+                "localhost", "/", [](error_code){});
+            wss.async_accept([](error_code){});
+            ioc.run();
+            ioc.restart();
+            BEAST_EXPECT(wsc.is_open());
+            BEAST_EXPECT(wss.is_open());
+            // contains a deflate block with BFINAL set
+            net::write(wsc.next_layer(), sbuf(
+                "\xc1\xf8\xd1\xe4\xcc\x3e\xda\xe4\xcc\x3e"
+                "\x2b\x1e\x36\xc4\x2b\x1e\x36\xc4\x2b\x1e"
+                "\x36\x3e\x35\xae\x4f\x54\x18\xae\x4f\x7b"
+                "\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e"
+                "\xd1\x1e\x36\xc4\x2b\x1e\x36\xc4\x2b\xe4"
+                "\x28\x74\x52\x8e\x05\x74\x52\xa1\xcc\x3e"
+                "\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e"
+                "\xd1\xe4\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4\x36\x3e"
+                "\xd1\xec\xcc\x3e\xd1\xe4\xcc\x3e\xd1\xe4"
+                "\xcc\x3e\xd1\xe4\xcc\x3e"));
+            error_code ec;
+            flat_buffer b;
+            wss.async_read(b,
+                [&ec](error_code ec_, std::size_t){ ec = ec_; });
+            ioc.run();
+            BEAST_EXPECTS(ec == zlib::error::end_of_stream, ec.message());
+        }
+    }
+
+    void
+    testMoveOnly()
+    {
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.async_read_some(
+            net::mutable_buffer{},
+            move_only_handler{});
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    testAsioHandlerInvoke()
+    {
+        // make sure things compile, also can set a
+        // breakpoint in asio_handler_invoke to make sure
+        // it is instantiated.
+        {
+            net::io_context ioc;
+            net::strand<
+                net::io_context::executor_type> s(
+                    ioc.get_executor());
+            stream<test::stream> ws{ioc};
+            flat_buffer b;
+            ws.async_read(b, net::bind_executor(
+            s, copyable_handler{}));
+        }
+    }
+
+    void
+    run() override
+    {
+        testParseFrame();
+        testIssue802();
+        testIssue807();
+        testIssue954();
+        testIssueBF1();
+        testIssueBF2();
+        testMoveOnly();
+        testAsioHandlerInvoke();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,read3);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/rfc6455.cpp b/src/boost/libs/beast/test/beast/websocket/rfc6455.cpp
new file mode 100644
index 000000000..97db0222d
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/rfc6455.cpp
@@ -0,0 +1,51 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/rfc6455.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class rfc6455_test
+    : public beast::unit_test::suite
+{
+public:
+    void
+    test_is_upgrade()
+    {
+        http::header<true> req;
+        req.version(10);
+        BEAST_EXPECT(! is_upgrade(req));
+        req.version(11);
+        req.method(http::verb::post);
+        req.target("/");
+        BEAST_EXPECT(! is_upgrade(req));
+        req.method(http::verb::get);
+        req.insert("Connection", "upgrade");
+        BEAST_EXPECT(! is_upgrade(req));
+        req.insert("Upgrade", "websocket");
+        BEAST_EXPECT(is_upgrade(req));
+    }
+
+    void
+    run() override
+    {
+        test_is_upgrade();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,rfc6455);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/ssl.cpp b/src/boost/libs/beast/test/beast/websocket/ssl.cpp
new file mode 100644
index 000000000..cbb64eea4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/ssl.cpp
@@ -0,0 +1,74 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// VFALCO This causes a compilation error
+#include <boost/beast/websocket/stream.hpp>
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/ssl.hpp>
+
+#include <boost/beast/websocket/stream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/executor.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/ssl.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class ssl_test : public unit_test::suite
+{
+public:
+    template<class Socket>
+    void
+    testTeardown()
+    {
+        net::io_context ioc;
+        net::ssl::context ctx(net::ssl::context::tlsv12);
+        Socket ss(ioc, ctx);
+
+        struct handler
+        {
+            void
+            operator()(error_code)
+            {
+            }
+        };
+
+        websocket::stream<Socket> ws(ioc, ctx);
+
+        BEAST_EXPECT(static_cast<
+            void(websocket::stream<Socket>::*)(
+                close_reason const&)>(
+            &websocket::stream<Socket>::close));
+
+        BEAST_EXPECT(static_cast<
+            void(websocket::stream<Socket>::*)(
+                close_reason const&, error_code&)>(
+            &websocket::stream<Socket>::close));
+    }
+
+    void
+    run() override
+    {
+        testTeardown<
+            boost::asio::ssl::stream<
+                boost::asio::basic_stream_socket<
+                    boost::asio::ip::tcp,
+                    boost::asio::executor>>>();
+
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,ssl);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/stream.cpp b/src/boost/libs/beast/test/beast/websocket/stream.cpp
new file mode 100644
index 000000000..5b1028d0b
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/stream.cpp
@@ -0,0 +1,206 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/core/tcp_stream.hpp>
+#include <boost/asio/strand.hpp>
+
+#include "test.hpp"
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class stream_test : public websocket_test_suite
+{
+public:
+    void
+    testGetSetOption()
+    {
+        net::io_context ioc;
+        stream<test::stream> ws(ioc);
+
+        {
+            ws.set_option(
+                stream_base::decorator(
+                    [](request_type&)
+                    {
+                    }));
+
+            ws.set_option(
+                stream_base::decorator(
+                    [](response_type&)
+                    {
+                    }));
+        }
+
+        {
+            ws.set_option(
+                stream_base::timeout::suggested(
+                    role_type::client));
+
+            ws.set_option(
+                stream_base::timeout::suggested(
+                    role_type::server));
+
+            ws.set_option({
+                std::chrono::seconds(30),
+                std::chrono::seconds(300),
+                true});
+
+            stream_base::timeout opt;
+            ws.get_option(opt);
+            ws.set_option(opt);
+        }
+    }
+
+    void
+    testOptions()
+    {
+        {
+            std::seed_seq ss{42};
+            seed_prng(ss);
+        }
+
+        stream<test::stream> ws{ioc_};
+        ws.auto_fragment(true);
+        ws.write_buffer_bytes(2048);
+        ws.binary(false);
+        ws.read_message_max(1 * 1024 * 1024);
+        try
+        {
+            ws.write_buffer_bytes(7);
+            fail();
+        }
+        catch(std::exception const&)
+        {
+            pass();
+        }
+
+        ws.secure_prng(true);
+        ws.secure_prng(false);
+
+        auto const bad =
+        [&](permessage_deflate const& pmd)
+        {
+            stream<test::stream> ws{ioc_};
+            try
+            {
+                ws.set_option(pmd);
+                fail("", __FILE__, __LINE__);
+            }
+            catch(std::exception const&)
+            {
+                pass();
+            }
+        };
+
+        {
+            permessage_deflate pmd;
+            pmd.server_max_window_bits = 16;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.server_max_window_bits = 8;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.client_max_window_bits = 16;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.client_max_window_bits = 8;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.compLevel = -1;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.compLevel = 10;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.memLevel = 0;
+            bad(pmd);
+        }
+
+        {
+            permessage_deflate pmd;
+            pmd.memLevel = 10;
+            bad(pmd);
+        }
+    }
+
+    void
+    testJavadoc()
+    {
+        net::io_context ioc;
+        {
+            websocket::stream<tcp_stream> ws{net::make_strand(ioc)};
+        }
+        {
+            websocket::stream<tcp_stream> ws(ioc);
+        }
+    }
+
+    void
+    run() override
+    {
+        BOOST_STATIC_ASSERT(std::is_constructible<
+            stream<test::stream>, net::io_context&>::value);
+
+        BOOST_STATIC_ASSERT(std::is_move_constructible<
+            stream<test::stream>>::value);
+
+    #if 0
+        BOOST_STATIC_ASSERT(std::is_move_assignable<
+            stream<test::stream>>::value);
+    #endif
+
+        BOOST_STATIC_ASSERT(std::is_constructible<
+            stream<test::stream&>, test::stream&>::value);
+
+        // VFALCO Should these be allowed for NextLayer references?
+        BOOST_STATIC_ASSERT(std::is_move_constructible<
+            stream<test::stream&>>::value);
+    #if 0
+        BOOST_STATIC_ASSERT(std::is_move_assignable<
+            stream<test::stream&>>::value);
+    #endif
+
+        log << "sizeof(websocket::stream) == " <<
+            sizeof(websocket::stream<test::stream&>) << std::endl;
+        log << "sizeof(websocket::stream::impl_type) == " <<
+            sizeof(websocket::stream<test::stream&>::impl_type) << std::endl;
+
+        testOptions();
+        testJavadoc();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,stream);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/stream_base.cpp b/src/boost/libs/beast/test/beast/websocket/stream_base.cpp
new file mode 100644
index 000000000..e61a51ed4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/stream_base.cpp
@@ -0,0 +1,73 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream_base.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class stream_base_test : public unit_test::suite
+{
+public:
+    struct T1
+    {
+        void operator()(request_type&);
+    };
+
+    struct T2
+    {
+        void operator()(response_type&);
+    };
+
+    struct T3
+    {
+        void operator()(request_type&);
+        void operator()(response_type&);
+    };
+
+    struct T4
+    {
+        template<class T>
+        void operator()(T&);
+    };
+
+    struct T5
+    {
+        void operator()();
+    };
+
+    BOOST_STATIC_ASSERT(detail::is_decorator<T1>::value);
+    BOOST_STATIC_ASSERT(detail::is_decorator<T2>::value);
+    BOOST_STATIC_ASSERT(detail::is_decorator<T3>::value);
+    BOOST_STATIC_ASSERT(detail::is_decorator<T4>::value);
+    BOOST_STATIC_ASSERT(! detail::is_decorator<T5>::value);
+    BOOST_STATIC_ASSERT(! detail::is_decorator<int>::value);
+
+    void
+    testJavadoc()
+    {
+    }
+
+    void
+    run() override
+    {
+        testJavadoc();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,stream_base);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/stream_explicit.cpp b/src/boost/libs/beast/test/beast/websocket/stream_explicit.cpp
new file mode 100644
index 000000000..5a7bdccc1
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/stream_explicit.cpp
@@ -0,0 +1,23 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/core/detail/config.hpp>
+#include <boost/asio/ip/tcp.hpp>
+
+namespace boost {
+namespace beast {
+
+template class websocket::stream<net::ip::tcp::socket, false>;
+template class websocket::stream<net::ip::tcp::socket, true>;
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/stream_fwd.cpp b/src/boost/libs/beast/test/beast/websocket/stream_fwd.cpp
new file mode 100644
index 000000000..7622f4ffa
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/stream_fwd.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream_fwd.hpp>
diff --git a/src/boost/libs/beast/test/beast/websocket/teardown.cpp b/src/boost/libs/beast/test/beast/websocket/teardown.cpp
new file mode 100644
index 000000000..ce1518dce
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/teardown.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/teardown.hpp>
diff --git a/src/boost/libs/beast/test/beast/websocket/test.hpp b/src/boost/libs/beast/test/beast/websocket/test.hpp
new file mode 100644
index 000000000..b4c90d2b7
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/test.hpp
@@ -0,0 +1,1590 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BEAST_TEST_WEBSOCKET_TEST_HPP
+#define BEAST_TEST_WEBSOCKET_TEST_HPP
+
+#include <boost/beast/core/bind_handler.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/websocket/stream.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/test/yield_to.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/optional.hpp>
+#include <cstdlib>
+#include <memory>
+#include <random>
+#include <string>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class websocket_test_suite
+    : public beast::unit_test::suite
+    , public test::enable_yield_to
+{
+public:
+    template<bool deflateSupported>
+    using ws_type_t =
+        websocket::stream<test::stream&, deflateSupported>;
+
+    using ws_type =
+        websocket::stream<test::stream&>;
+
+    struct move_only_handler
+    {
+        move_only_handler() = default;
+        move_only_handler(move_only_handler&&) = default;
+        move_only_handler(move_only_handler const&) = delete;
+
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    enum class kind
+    {
+        sync,
+        async,
+        async_client
+    };
+
+    class echo_server
+    {
+        enum
+        {
+            buf_size = 20000
+        };
+
+        std::ostream& log_;
+        net::io_context ioc_;
+        net::executor_work_guard<
+            net::io_context::executor_type> work_;
+        static_buffer<buf_size> buffer_;
+        test::stream ts_;
+        std::thread t_;
+        websocket::stream<test::stream&> ws_;
+        bool close_ = false;
+
+    public:
+        explicit
+        echo_server(
+            std::ostream& log,
+            kind k = kind::sync)
+            : log_(log)
+            , work_(ioc_.get_executor())
+            , ts_(ioc_)
+            , ws_(ts_)
+        {
+            permessage_deflate pmd;
+            pmd.server_enable = true;
+            pmd.server_max_window_bits = 9;
+            pmd.compLevel = 1;
+            ws_.set_option(pmd);
+
+            switch(k)
+            {
+            case kind::sync:
+                t_ = std::thread{[&]{ do_sync(); }};
+                break;
+
+            case kind::async:
+                t_ = std::thread{[&]{ ioc_.run(); }};
+                do_accept();
+                break;
+
+            case kind::async_client:
+                t_ = std::thread{[&]{ ioc_.run(); }};
+                break;
+            }
+        }
+
+        ~echo_server()
+        {
+            work_.reset();
+            t_.join();
+        }
+
+        test::stream&
+        stream()
+        {
+            return ts_;
+        }
+
+        void
+        async_handshake()
+        {
+            ws_.async_handshake("localhost", "/",
+                bind_front_handler(
+                    &echo_server::on_handshake,
+                    this));
+        }
+
+        void
+        async_close()
+        {
+            net::post(ioc_,
+            [&]
+            {
+                if(ws_.is_open())
+                {
+                    ws_.async_close({},
+                        bind_front_handler(
+                            &echo_server::on_close,
+                            this));
+                }
+                else
+                {
+                    close_ = true;
+                }
+            });
+        }
+
+    private:
+        void
+        do_sync()
+        {
+            try
+            {
+                ws_.accept();
+                for(;;)
+                {
+                    ws_.read(buffer_);
+                    ws_.text(ws_.got_text());
+                    ws_.write(buffer_.data());
+                    buffer_.consume(buffer_.size());
+                }
+            }
+            catch(system_error const& se)
+            {
+                boost::ignore_unused(se);
+    #if 0
+                if( se.code() != error::closed &&
+                    se.code() != error::failed &&
+                    se.code() != net::error::eof)
+                    log_ << "echo_server: " << se.code().message() << std::endl;
+    #endif
+            }
+            catch(std::exception const& e)
+            {
+                log_ << "echo_server: " << e.what() << std::endl;
+            }
+        }
+
+        void
+        do_accept()
+        {
+            ws_.async_accept(
+                bind_front_handler(
+                    &echo_server::on_accept,
+                    this));
+        }
+
+        void
+        on_handshake(error_code ec)
+        {
+            if(ec)
+                return fail(ec);
+
+            do_read();
+        }
+
+        void
+        on_accept(error_code ec)
+        {
+            if(ec)
+                return fail(ec);
+
+            if(close_)
+            {
+                return ws_.async_close({},
+                    bind_front_handler(
+                        &echo_server::on_close,
+                        this));
+            }
+
+            do_read();
+        }
+
+        void
+        do_read()
+        {
+            ws_.async_read(buffer_,
+                beast::bind_front_handler(
+                    &echo_server::on_read,
+                    this));
+        }
+
+        void
+        on_read(error_code ec, std::size_t)
+        {
+            if(ec)
+                return fail(ec);
+            ws_.text(ws_.got_text());
+            ws_.async_write(buffer_.data(),
+                beast::bind_front_handler(
+                    &echo_server::on_write,
+                    this));
+        }
+
+        void
+        on_write(error_code ec, std::size_t)
+        {
+            if(ec)
+                return fail(ec);
+            buffer_.consume(buffer_.size());
+            do_read();
+        }
+
+        void
+        on_close(error_code ec)
+        {
+            if(ec)
+                return fail(ec);
+        }
+
+        void
+        fail(error_code ec)
+        {
+            boost::ignore_unused(ec);
+    #if 0
+            if( ec != error::closed &&
+                ec != error::failed &&
+                ec != net::error::eof)
+                log_ <<
+                    "echo_server_async: " <<
+                    ec.message() <<
+                    std::endl;
+    #endif
+        }
+    };
+
+    template<class Test>
+    void
+    doFailLoop(
+        Test const& f, std::size_t limit = 200)
+    {
+        std::size_t n;
+        for(n = 0; n < limit; ++n)
+        {
+            test::fail_count fc{n};
+            try
+            {
+                f(fc);
+                break;
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == test::error::test_failure,
+                    se.code().message());
+            }
+        }
+        BEAST_EXPECT(n < limit);
+    }
+
+    template<class Test>
+    void
+    doStreamLoop(Test const& f)
+    {
+        // This number has to be high for the
+        // test that writes the large buffer.
+        static std::size_t constexpr limit = 200;
+
+        doFailLoop(
+            [&](test::fail_count& fc)
+            {
+                test::stream ts{ioc_, fc};
+                f(ts);
+                ts.close();
+            }
+            , limit);
+    }
+
+    template<bool deflateSupported = true, class Test>
+    void
+    doTest(
+        permessage_deflate const& pmd,
+        Test const& f)
+    {
+        // This number has to be high for the
+        // test that writes the large buffer.
+        static std::size_t constexpr limit = 200;
+
+        for(int i = 0; i < 2; ++i)
+        {
+            std::size_t n;
+            for(n = 0; n < limit; ++n)
+            {
+                test::fail_count fc{n};
+                test::stream ts{ioc_, fc};
+                ws_type_t<deflateSupported> ws{ts};
+                ws.set_option(pmd);
+
+                echo_server es{log, i==1 ?
+                    kind::async : kind::sync};
+                error_code ec;
+                ws.next_layer().connect(es.stream());
+                ws.handshake("localhost", "/", ec);
+                if(ec)
+                {
+                    ts.close();
+                    if( ! BEAST_EXPECTS(
+                            ec == test::error::test_failure,
+                            ec.message()))
+                        BOOST_THROW_EXCEPTION(system_error{ec});
+                    continue;
+                }
+                try
+                {
+                    f(ws);
+                    ts.close();
+                    break;
+                }
+                catch(system_error const& se)
+                {
+                    BEAST_EXPECTS(
+                        se.code() == test::error::test_failure,
+                        se.code().message());
+                }
+                catch(std::exception const& e)
+                {
+                    fail(e.what(), __FILE__, __LINE__);
+                }
+                ts.close();
+                continue;
+            }
+            BEAST_EXPECT(n < limit);
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    net::const_buffer cbuf(std::initializer_list<std::uint8_t> bytes)
+    {
+        return {bytes.begin(), bytes.size()};
+    }
+
+    template<std::size_t N>
+    static
+    net::const_buffer
+    sbuf(const char (&s)[N])
+    {
+        return net::const_buffer(&s[0], N-1);
+    }
+
+    template<
+        class DynamicBuffer,
+        class ConstBufferSequence>
+    void
+    put(
+        DynamicBuffer& buffer,
+        ConstBufferSequence const& buffers)
+    {
+        buffer.commit(net::buffer_copy(
+            buffer.prepare(buffer_bytes(buffers)),
+            buffers));
+    }
+
+    template<class Pred>
+    bool
+    run_until(net::io_context& ioc,
+        std::size_t limit, Pred&& pred)
+    {
+        for(std::size_t i = 0; i < limit; ++i)
+        {
+            if(pred())
+                return true;
+            ioc.run_one();
+        }
+        return false;
+    }
+
+    template<class Pred>
+    bool
+    run_until(
+        net::io_context& ioc, Pred&& pred)
+    {
+        return run_until(ioc, 100, pred);
+    }
+
+    inline
+    std::string const&
+    random_string()
+    {
+        static std::string const s = []
+        {
+            std::size_t constexpr N = 16384;
+            std::mt19937 mt{1};
+            std::string tmp;
+            tmp.reserve(N);
+            for(std::size_t i = 0; i < N; ++ i)
+                tmp.push_back(static_cast<char>(
+                    std::uniform_int_distribution<
+                        unsigned>{0, 255}(mt)));
+            return tmp;
+        }();
+        return s;
+    }
+
+    //--------------------------------------------------------------------------
+
+    struct SyncClient
+    {
+        template<class NextLayer, bool deflateSupported>
+        void
+        accept(
+            stream<NextLayer, deflateSupported>& ws) const
+        {
+            ws.accept();
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Buffers>
+        typename std::enable_if<
+            ! http::detail::is_header<Buffers>::value>::type
+        accept(stream<NextLayer, deflateSupported>& ws,
+            Buffers const& buffers) const
+        {
+            ws.accept(buffers);
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        accept(
+            stream<NextLayer, deflateSupported>& ws,
+            http::request<http::empty_body> const& req) const
+        {
+            ws.accept(req);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            Decorator const& d) const
+        {
+            ws.accept_ex(d);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Buffers, class Decorator>
+        typename std::enable_if<
+            ! http::detail::is_header<Buffers>::value>::type
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            Buffers const& buffers,
+            Decorator const& d) const
+        {
+            ws.accept_ex(buffers, d);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            http::request<http::empty_body> const& req,
+            Decorator const& d) const
+        {
+            ws.accept_ex(req, d);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Buffers, class Decorator>
+        void
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            http::request<http::empty_body> const& req,
+            Buffers const& buffers,
+            Decorator const& d) const
+        {
+            ws.accept_ex(req, buffers, d);
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        handshake(
+            stream<NextLayer, deflateSupported>& ws,
+            string_view uri,
+            string_view path) const
+        {
+            ws.handshake(uri, path);
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        handshake(
+            stream<NextLayer, deflateSupported>& ws,
+            response_type& res,
+            string_view uri,
+            string_view path) const
+        {
+            ws.handshake(res, uri, path);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        handshake_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            string_view uri,
+            string_view path,
+            Decorator const& d) const
+        {
+            ws.handshake_ex(uri, path, d);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        handshake_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            response_type& res,
+            string_view uri,
+            string_view path,
+            Decorator const& d) const
+        {
+            ws.handshake_ex(res, uri, path, d);
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        ping(stream<NextLayer, deflateSupported>& ws,
+            ping_data const& payload) const
+        {
+            ws.ping(payload);
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        pong(stream<NextLayer, deflateSupported>& ws,
+            ping_data const& payload) const
+        {
+            ws.pong(payload);
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        close(stream<NextLayer, deflateSupported>& ws,
+            close_reason const& cr) const
+        {
+            ws.close(cr);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class DynamicBuffer>
+        std::size_t
+        read(stream<NextLayer, deflateSupported>& ws,
+            DynamicBuffer& buffer) const
+        {
+            return ws.read(buffer);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class DynamicBuffer>
+        std::size_t
+        read_some(
+            stream<NextLayer, deflateSupported>& ws,
+            std::size_t limit,
+            DynamicBuffer& buffer) const
+        {
+            return ws.read_some(buffer, limit);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class MutableBufferSequence>
+        std::size_t
+        read_some(
+            stream<NextLayer, deflateSupported>& ws,
+            MutableBufferSequence const& buffers) const
+        {
+            return ws.read_some(buffers);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class ConstBufferSequence>
+        std::size_t
+        write(
+            stream<NextLayer, deflateSupported>& ws,
+            ConstBufferSequence const& buffers) const
+        {
+            return ws.write(buffers);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class ConstBufferSequence>
+        std::size_t
+        write_some(
+            stream<NextLayer, deflateSupported>& ws,
+            bool fin,
+            ConstBufferSequence const& buffers) const
+        {
+            return ws.write_some(fin, buffers);
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class ConstBufferSequence>
+        std::size_t
+        write_raw(
+            stream<NextLayer, deflateSupported>& ws,
+            ConstBufferSequence const& buffers) const
+        {
+            return net::write(
+                ws.next_layer(), buffers);
+        }
+    };
+
+    //--------------------------------------------------------------------------
+
+    class AsyncClient
+    {
+        net::yield_context& yield_;
+
+    public:
+        explicit
+        AsyncClient(net::yield_context& yield)
+            : yield_(yield)
+        {
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        accept(stream<NextLayer, deflateSupported>& ws) const
+        {
+            error_code ec;
+            ws.async_accept(yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Buffers>
+        typename std::enable_if<
+            ! http::detail::is_header<Buffers>::value>::type
+        accept(
+            stream<NextLayer, deflateSupported>& ws,
+            Buffers const& buffers) const
+        {
+            error_code ec;
+            ws.async_accept(buffers, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        accept(
+            stream<NextLayer, deflateSupported>& ws,
+            http::request<http::empty_body> const& req) const
+        {
+            error_code ec;
+            ws.async_accept(req, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            Decorator const& d) const
+        {
+            error_code ec;
+            ws.async_accept_ex(d, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Buffers, class Decorator>
+        typename std::enable_if<
+            ! http::detail::is_header<Buffers>::value>::type
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            Buffers const& buffers,
+            Decorator const& d) const
+        {
+            error_code ec;
+            ws.async_accept_ex(buffers, d, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            http::request<http::empty_body> const& req,
+            Decorator const& d) const
+        {
+            error_code ec;
+            ws.async_accept_ex(req, d, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Buffers, class Decorator>
+        void
+        accept_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            http::request<http::empty_body> const& req,
+            Buffers const& buffers,
+            Decorator const& d) const
+        {
+            error_code ec;
+            ws.async_accept_ex(
+                req, buffers, d, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported>
+        void
+        handshake(
+            stream<NextLayer, deflateSupported>& ws,
+            string_view uri,
+            string_view path) const
+        {
+            error_code ec;
+            ws.async_handshake(
+                uri, path, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        handshake(
+            stream<NextLayer, deflateSupported>& ws,
+            response_type& res,
+            string_view uri,
+            string_view path) const
+        {
+            error_code ec;
+            ws.async_handshake(
+                res, uri, path, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        handshake_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            string_view uri,
+            string_view path,
+            Decorator const &d) const
+        {
+            error_code ec;
+            ws.async_handshake_ex(
+                uri, path, d, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class Decorator>
+        void
+        handshake_ex(
+            stream<NextLayer, deflateSupported>& ws,
+            response_type& res,
+            string_view uri,
+            string_view path,
+            Decorator const &d) const
+        {
+            error_code ec;
+            ws.async_handshake_ex(
+                res, uri, path, d, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        ping(
+            stream<NextLayer, deflateSupported>& ws,
+            ping_data const& payload) const
+        {
+            error_code ec;
+            ws.async_ping(payload, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        pong(
+            stream<NextLayer, deflateSupported>& ws,
+            ping_data const& payload) const
+        {
+            error_code ec;
+            ws.async_pong(payload, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<class NextLayer, bool deflateSupported>
+        void
+        close(
+            stream<NextLayer, deflateSupported>& ws,
+            close_reason const& cr) const
+        {
+            error_code ec;
+            ws.async_close(cr, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class DynamicBuffer>
+        std::size_t
+        read(
+            stream<NextLayer, deflateSupported>& ws,
+            DynamicBuffer& buffer) const
+        {
+            error_code ec;
+            auto const bytes_written =
+                ws.async_read(buffer, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+            return bytes_written;
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class DynamicBuffer>
+        std::size_t
+        read_some(
+            stream<NextLayer, deflateSupported>& ws,
+            std::size_t limit,
+            DynamicBuffer& buffer) const
+        {
+            error_code ec;
+            auto const bytes_written =
+                ws.async_read_some(buffer, limit, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+            return bytes_written;
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class MutableBufferSequence>
+        std::size_t
+        read_some(
+            stream<NextLayer, deflateSupported>& ws,
+            MutableBufferSequence const& buffers) const
+        {
+            error_code ec;
+            auto const bytes_written =
+                ws.async_read_some(buffers, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+            return bytes_written;
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class ConstBufferSequence>
+        std::size_t
+        write(
+            stream<NextLayer, deflateSupported>& ws,
+            ConstBufferSequence const& buffers) const
+        {
+            error_code ec;
+            auto const bytes_transferred =
+                ws.async_write(buffers, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+            return bytes_transferred;
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class ConstBufferSequence>
+        std::size_t
+        write_some(
+            stream<NextLayer, deflateSupported>& ws,
+            bool fin,
+            ConstBufferSequence const& buffers) const
+        {
+            error_code ec;
+            auto const bytes_transferred =
+                ws.async_write_some(fin, buffers, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+            return bytes_transferred;
+        }
+
+        template<
+            class NextLayer, bool deflateSupported,
+            class ConstBufferSequence>
+        std::size_t
+        write_raw(
+            stream<NextLayer, deflateSupported>& ws,
+            ConstBufferSequence const& buffers) const
+        {
+            error_code ec;
+            auto const bytes_transferred =
+                net::async_write(
+                    ws.next_layer(), buffers, yield_[ec]);
+            if(ec)
+                throw system_error{ec};
+            return bytes_transferred;
+        }
+    };
+};
+
+struct test_sync_api
+{
+    template<class NextLayer, bool deflateSupported>
+    void
+    accept(
+        stream<NextLayer, deflateSupported>& ws) const
+    {
+        ws.accept();
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Buffers>
+    typename std::enable_if<
+        ! http::detail::is_header<Buffers>::value>::type
+    accept(stream<NextLayer, deflateSupported>& ws,
+        Buffers const& buffers) const
+    {
+        ws.accept(buffers);
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    accept(
+        stream<NextLayer, deflateSupported>& ws,
+        http::request<http::empty_body> const& req) const
+    {
+        ws.accept(req);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        Decorator const& d) const
+    {
+        ws.accept_ex(d);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Buffers, class Decorator>
+    typename std::enable_if<
+        ! http::detail::is_header<Buffers>::value>::type
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        Buffers const& buffers,
+        Decorator const& d) const
+    {
+        ws.accept_ex(buffers, d);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        http::request<http::empty_body> const& req,
+        Decorator const& d) const
+    {
+        ws.accept_ex(req, d);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Buffers, class Decorator>
+    void
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        http::request<http::empty_body> const& req,
+        Buffers const& buffers,
+        Decorator const& d) const
+    {
+        ws.accept_ex(req, buffers, d);
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    handshake(
+        stream<NextLayer, deflateSupported>& ws,
+        response_type& res,
+        string_view uri,
+        string_view path) const
+    {
+        ws.handshake(res, uri, path);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    handshake_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        string_view uri,
+        string_view path,
+        Decorator const& d) const
+    {
+        ws.handshake_ex(uri, path, d);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    handshake_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        response_type& res,
+        string_view uri,
+        string_view path,
+        Decorator const& d) const
+    {
+        ws.handshake_ex(res, uri, path, d);
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    ping(stream<NextLayer, deflateSupported>& ws,
+        ping_data const& payload) const
+    {
+        ws.ping(payload);
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    pong(stream<NextLayer, deflateSupported>& ws,
+        ping_data const& payload) const
+    {
+        ws.pong(payload);
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    close(stream<NextLayer, deflateSupported>& ws,
+        close_reason const& cr) const
+    {
+        ws.close(cr);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class DynamicBuffer>
+    std::size_t
+    read(stream<NextLayer, deflateSupported>& ws,
+        DynamicBuffer& buffer) const
+    {
+        return ws.read(buffer);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class DynamicBuffer>
+    std::size_t
+    read_some(
+        stream<NextLayer, deflateSupported>& ws,
+        std::size_t limit,
+        DynamicBuffer& buffer) const
+    {
+        return ws.read_some(buffer, limit);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class MutableBufferSequence>
+    std::size_t
+    read_some(
+        stream<NextLayer, deflateSupported>& ws,
+        MutableBufferSequence const& buffers) const
+    {
+        return ws.read_some(buffers);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class ConstBufferSequence>
+    std::size_t
+    write(
+        stream<NextLayer, deflateSupported>& ws,
+        ConstBufferSequence const& buffers) const
+    {
+        return ws.write(buffers);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class ConstBufferSequence>
+    std::size_t
+    write_some(
+        stream<NextLayer, deflateSupported>& ws,
+        bool fin,
+        ConstBufferSequence const& buffers) const
+    {
+        return ws.write_some(fin, buffers);
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class ConstBufferSequence>
+    std::size_t
+    write_raw(
+        stream<NextLayer, deflateSupported>& ws,
+        ConstBufferSequence const& buffers) const
+    {
+        return net::write(
+            ws.next_layer(), buffers);
+    }
+};
+
+//--------------------------------------------------------------------------
+
+class test_async_api
+{
+    struct handler
+    {
+        error_code& ec_;
+        std::size_t* n_ = 0;
+        bool pass_ = false;
+
+        explicit
+        handler(error_code& ec)
+            : ec_(ec)
+        {
+        }
+
+        explicit
+        handler(error_code& ec, std::size_t& n)
+            : ec_(ec)
+            , n_(&n)
+        {
+            *n_ = 0;
+        }
+
+        handler(handler&& other)
+            : ec_(other.ec_)
+            , pass_(boost::exchange(other.pass_, true))
+        {
+        }
+
+        ~handler()
+        {
+            BEAST_EXPECT(pass_);
+        }
+
+        void
+        operator()(error_code ec)
+        {
+            BEAST_EXPECT(! pass_);
+            pass_ = true;
+            ec_ = ec;
+        }
+
+        void
+        operator()(error_code ec, std::size_t n)
+        {
+            BEAST_EXPECT(! pass_);
+            pass_ = true;
+            ec_ = ec;
+            if(n_)
+                *n_ = n;
+        }
+    };
+
+public:
+    template<class NextLayer, bool deflateSupported>
+    void
+    accept(
+        stream<NextLayer, deflateSupported>& ws) const
+    {
+        error_code ec;
+        ws.async_accept(handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Buffers>
+    typename std::enable_if<
+        ! http::detail::is_header<Buffers>::value>::type
+    accept(
+        stream<NextLayer, deflateSupported>& ws,
+        Buffers const& buffers) const
+    {
+        error_code ec;
+        ws.async_accept(buffers, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    accept(
+        stream<NextLayer, deflateSupported>& ws,
+        http::request<http::empty_body> const& req) const
+    {
+        error_code ec;
+        ws.async_accept(req, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        Decorator const& d) const
+    {
+        error_code ec;
+        ws.async_accept_ex(d, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Buffers, class Decorator>
+    typename std::enable_if<
+        ! http::detail::is_header<Buffers>::value>::type
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        Buffers const& buffers,
+        Decorator const& d) const
+    {
+        error_code ec;
+        ws.async_accept_ex(buffers, d, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        http::request<http::empty_body> const& req,
+        Decorator const& d) const
+    {
+        error_code ec;
+        ws.async_accept_ex(req, d, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Buffers, class Decorator>
+    void
+    accept_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        http::request<http::empty_body> const& req,
+        Buffers const& buffers,
+        Decorator const& d) const
+    {
+        error_code ec;
+        ws.async_accept_ex(
+            req, buffers, d, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported>
+    void
+    handshake(
+        stream<NextLayer, deflateSupported>& ws,
+        string_view uri,
+        string_view path) const
+    {
+        error_code ec;
+        ws.async_handshake(
+            uri, path, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    handshake(
+        stream<NextLayer, deflateSupported>& ws,
+        response_type& res,
+        string_view uri,
+        string_view path) const
+    {
+        error_code ec;
+        ws.async_handshake(
+            res, uri, path, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    handshake_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        string_view uri,
+        string_view path,
+        Decorator const &d) const
+    {
+        error_code ec;
+        ws.async_handshake_ex(
+            uri, path, d, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class Decorator>
+    void
+    handshake_ex(
+        stream<NextLayer, deflateSupported>& ws,
+        response_type& res,
+        string_view uri,
+        string_view path,
+        Decorator const &d) const
+    {
+        error_code ec;
+        ws.async_handshake_ex(
+            res, uri, path, d, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    ping(
+        stream<NextLayer, deflateSupported>& ws,
+        ping_data const& payload) const
+    {
+        error_code ec;
+        ws.async_ping(payload, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    pong(
+        stream<NextLayer, deflateSupported>& ws,
+        ping_data const& payload) const
+    {
+        error_code ec;
+        ws.async_pong(payload, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<class NextLayer, bool deflateSupported>
+    void
+    close(
+        stream<NextLayer, deflateSupported>& ws,
+        close_reason const& cr) const
+    {
+        error_code ec;
+        ws.async_close(cr, handler(ec));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class DynamicBuffer>
+    std::size_t
+    read(
+        stream<NextLayer, deflateSupported>& ws,
+        DynamicBuffer& buffer) const
+    {
+        error_code ec;
+        std::size_t n;
+        ws.async_read(buffer, handler(ec, n));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+        return n;
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class DynamicBuffer>
+    std::size_t
+    read_some(
+        stream<NextLayer, deflateSupported>& ws,
+        std::size_t limit,
+        DynamicBuffer& buffer) const
+    {
+        error_code ec;
+        std::size_t n;
+        ws.async_read_some(buffer, limit, handler(ec, n));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+        return n;
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class MutableBufferSequence>
+    std::size_t
+    read_some(
+        stream<NextLayer, deflateSupported>& ws,
+        MutableBufferSequence const& buffers) const
+    {
+        error_code ec;
+        std::size_t n;
+        ws.async_read_some(buffers, handler(ec, n));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+        return n;
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class ConstBufferSequence>
+    std::size_t
+    write(
+        stream<NextLayer, deflateSupported>& ws,
+        ConstBufferSequence const& buffers) const
+    {
+        error_code ec;
+        std::size_t n;
+        ws.async_write(buffers, handler(ec, n));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+        return n;
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class ConstBufferSequence>
+    std::size_t
+    write_some(
+        stream<NextLayer, deflateSupported>& ws,
+        bool fin,
+        ConstBufferSequence const& buffers) const
+    {
+        error_code ec;
+        std::size_t n;
+        ws.async_write_some(fin, buffers, handler(ec, n));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+        return n;
+    }
+
+    template<
+        class NextLayer, bool deflateSupported,
+        class ConstBufferSequence>
+    std::size_t
+    write_raw(
+        stream<NextLayer, deflateSupported>& ws,
+        ConstBufferSequence const& buffers) const
+    {
+        error_code ec;
+        std::size_t n;
+        net::async_write(ws.next_layer(),
+            buffers, handler(ec, n));
+        ws.get_executor().context().run();
+        ws.get_executor().context().restart();
+        if(ec)
+            throw system_error{ec};
+        return n;
+    }
+};
+
+} // websocket
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/beast/websocket/timer.cpp b/src/boost/libs/beast/test/beast/websocket/timer.cpp
new file mode 100644
index 000000000..f3507c1d1
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/timer.cpp
@@ -0,0 +1,199 @@
+
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/beast/_experimental/test/tcp.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/asio/ip/tcp.hpp>
+#include <boost/asio/detached.hpp>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+struct timer_test : unit_test::suite
+{
+    using tcp = boost::asio::ip::tcp;
+
+    void
+    testIdlePing()
+    {
+        net::io_context ioc;
+
+        // idle ping, no timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_accept(test::success_handler());
+            ws2.async_handshake("test", "/", test::success_handler());
+            test::run(ioc);
+
+            ws2.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::milliseconds(100),
+                true});
+            flat_buffer b1;
+            flat_buffer b2;
+            bool received = false;
+            ws1.control_callback(
+                [&received](frame_type ft, string_view)
+                {
+                    received = true;
+                    BEAST_EXPECT(ft == frame_type::ping);
+                });
+            ws1.async_read(b1, test::fail_handler(
+                net::error::operation_aborted));
+            ws2.async_read(b2, test::fail_handler(
+                net::error::operation_aborted));
+            test::run_for(ioc, std::chrono::milliseconds(500));
+            BEAST_EXPECT(received);
+        }
+
+        test::run(ioc);
+
+        // idle ping, timeout
+
+        {
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+            ws1.async_accept(test::success_handler());
+            ws2.async_handshake("test", "/", test::success_handler());
+            test::run(ioc);
+
+            ws2.set_option(stream_base::timeout{
+                stream_base::none(),
+                std::chrono::milliseconds(50),
+                true});
+            flat_buffer b;
+            ws2.async_read(b,
+                test::fail_handler(beast::error::timeout));
+            test::run(ioc);
+        }
+
+        test::run(ioc);
+    }
+
+    // https://github.com/boostorg/beast/issues/1729
+    void
+    testIssue1729()
+    {
+        {
+            net::io_context ioc;
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(websocket::stream_base::timeout{
+                std::chrono::milliseconds(50),
+                websocket::stream_base::none(),
+                false});
+
+            ws1.async_accept(net::detached);
+            ws2.async_handshake(
+                "localhost", "/", net::detached);
+            ioc.run();
+            ioc.restart();
+
+            flat_buffer b;
+            error_code ec1, ec2;
+            ws1.async_close({},
+                [&ec2](error_code ec)
+                {
+                    ec2 = ec;
+                });
+            ioc.run();
+            BEAST_EXPECT(
+                ec1 == beast::error::timeout ||
+                ec2 == beast::error::timeout);
+        }
+        {
+            net::io_context ioc;
+            stream<tcp::socket> ws1(ioc);
+            stream<tcp::socket> ws2(ioc);
+            test::connect(ws1.next_layer(), ws2.next_layer());
+
+            ws1.set_option(websocket::stream_base::timeout{
+                std::chrono::milliseconds(50),
+                websocket::stream_base::none(),
+                false});
+
+            ws1.async_accept(net::detached);
+            ws2.async_handshake(
+                "localhost", "/", net::detached);
+            ioc.run();
+            ioc.restart();
+
+            flat_buffer b;
+            error_code ec1, ec2;
+            ws1.async_read(b,
+                [&ec1](error_code ec, std::size_t)
+                {
+                    ec1 = ec;
+                });
+            ws1.async_close({},
+                [&ec2](error_code ec)
+                {
+                    ec2 = ec;
+                });
+            ioc.run();
+            BEAST_EXPECT(
+                ec1 == beast::error::timeout ||
+                ec2 == beast::error::timeout);
+        }
+    }
+
+    // https://github.com/boostorg/beast/issues/1729#issuecomment-540481056
+    void
+    testCloseWhileRead()
+    {
+        net::io_context ioc;
+        stream<tcp::socket> ws1(ioc);
+        stream<tcp::socket> ws2(ioc);
+        test::connect(ws1.next_layer(), ws2.next_layer());
+
+        ws1.set_option(websocket::stream_base::timeout{
+            std::chrono::milliseconds(50),
+            websocket::stream_base::none(),
+            false});
+
+        ws1.async_accept(net::detached);
+        ws2.async_handshake(
+            "localhost", "/", net::detached);
+        ioc.run();
+        ioc.restart();
+
+        flat_buffer b;
+        ws1.async_read(b, test::fail_handler(
+            beast::error::timeout));
+        ws1.async_close({}, test::fail_handler(
+            net::error::operation_aborted));
+        ioc.run();
+    }
+
+    void
+    run() override
+    {
+        testIdlePing();
+        testIssue1729();
+        testCloseWhileRead();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,timer);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/utf8_checker.cpp b/src/boost/libs/beast/test/beast/websocket/utf8_checker.cpp
new file mode 100644
index 000000000..a54aee3b8
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/utf8_checker.cpp
@@ -0,0 +1,597 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/detail/utf8_checker.hpp>
+
+#include <boost/beast/core/buffers_suffix.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <array>
+
+namespace boost {
+namespace beast {
+namespace websocket {
+namespace detail {
+
+class utf8_checker_test : public beast::unit_test::suite
+{
+public:
+    void
+    testOneByteSequence()
+    {
+        // valid single-char code points
+        for(unsigned char c = 0; c < 128; ++c)
+        {
+            utf8_checker u;
+            BEAST_EXPECT(u.write(&c, 1));
+            BEAST_EXPECT(u.finish());
+        }
+
+        // invalid lead bytes
+        for(unsigned char c = 128; c < 192; ++c)
+        {
+            utf8_checker u;
+            BEAST_EXPECT(! u.write(&c, 1));
+        }
+
+        // two byte sequences
+        for(unsigned char c = 192; c < 224; ++c)
+        {
+            // fail fast
+            utf8_checker u;
+            if (c < 194)
+                BEAST_EXPECT(! u.write(&c, 1));
+            else
+            {
+                BEAST_EXPECT(u.write(&c, 1));
+                BEAST_EXPECT(! u.finish());
+            }
+        }
+
+        // three byte sequences
+        for(unsigned char c = 224; c < 240; ++c)
+        {
+            utf8_checker u;
+            BEAST_EXPECT(u.write(&c, 1));
+            BEAST_EXPECT(! u.finish());
+        }
+
+        // four byte sequences
+        for(unsigned char c = 240; c < 245; ++c)
+        {
+            // fail fast
+            utf8_checker u;
+            BEAST_EXPECT(u.write(&c, 1));
+            BEAST_EXPECT(! u.finish());
+        }
+
+        // invalid lead bytes
+        for(unsigned char c = 245; c; ++c)
+        {
+            utf8_checker u;
+            BEAST_EXPECT(! u.write(&c, 1));
+        }
+    }
+
+    void
+    testTwoByteSequence()
+    {
+        // Autobahn 6.18.1
+        {
+            utf8_checker u;
+            BEAST_EXPECT(! u.write(net::buffer("\xc1\xbf", 2)));
+        }
+
+        utf8_checker u;
+        std::uint8_t buf[2];
+        // First byte valid range 194-223
+        for(auto i : {194, 223})
+        {
+            buf[0] = static_cast<std::uint8_t>(i);
+
+            // Second byte valid range 128-191
+            for(auto j : {128, 191})
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+                BEAST_EXPECT(u.write(buf, 2));
+                BEAST_EXPECT(u.finish());
+            }
+
+            // Second byte invalid range 0-127
+            for(auto j : {0, 127})
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+                BEAST_EXPECT(! u.write(buf, 2));
+                u.reset();
+            }
+
+            // Second byte invalid range 192-255
+            for(auto j : {192, 255})
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+                BEAST_EXPECT(! u.write(buf, 2));
+                u.reset();
+            }
+
+            // Segmented sequence second byte invalid
+            BEAST_EXPECT(u.write(buf, 1));
+            BEAST_EXPECT(! u.write(&buf[1], 1));
+            u.reset();
+        }
+    }
+
+    void
+    testThreeByteSequence()
+    {
+        {
+            utf8_checker u;
+            BEAST_EXPECT(u.write(net::buffer("\xef\xbf\xbf", 3)));
+            BEAST_EXPECT(u.finish());
+        }
+        utf8_checker u;
+        std::uint8_t buf[3];
+        // First byte valid range 224-239
+        for(auto i : {224, 239})
+        {
+            buf[0] = static_cast<std::uint8_t>(i);
+
+            // Second byte valid range 128-191 or 160-191 or 128-159
+            std::int32_t const b = (i == 224 ? 160 : 128);
+            std::int32_t const e = (i == 237 ? 159 : 191);
+            for(auto j : {b, e})
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+
+                // Third byte valid range 128-191
+                for(auto k : {128, 191})
+                {
+                    buf[2] = static_cast<std::uint8_t>(k);
+                    BEAST_EXPECT(u.write(buf, 3));
+                    BEAST_EXPECT(u.finish());
+                    // Segmented sequence
+                    if (i == 224) 
+                    {
+                        BEAST_EXPECT(u.write(buf, 1));
+                        BEAST_EXPECT(!u.finish());
+                    }
+                    else
+                    {
+                        BEAST_EXPECT(u.write(buf, 1));
+                        BEAST_EXPECT(u.write(&buf[1], 2));
+                    }
+                    u.reset();
+                    // Segmented sequence
+                    BEAST_EXPECT(u.write(buf, 2));
+                    BEAST_EXPECT(u.write(&buf[2], 1));
+                    u.reset();
+
+                    if (i == 224)
+                    {
+                        // Second byte invalid range 0-159
+                        for (auto l : {0, 159})
+                        {
+                            buf[1] = static_cast<std::uint8_t>(l);
+                            BEAST_EXPECT(! u.write(buf, 3));
+                            u.reset();
+                            // Segmented sequence second byte invalid
+                            BEAST_EXPECT(!u.write(buf, 2));
+                            u.reset();
+                        }
+                        // Second byte invalid range 192-255
+                        for(auto l : {192, 255})
+                        {
+                            buf[1] = static_cast<std::uint8_t>(l);
+                            BEAST_EXPECT(! u.write(buf, 3));
+                            u.reset();
+                            // Segmented sequence second byte invalid
+                            BEAST_EXPECT(!u.write(buf, 2));
+                            u.reset();
+                        }
+                        buf[1] = static_cast<std::uint8_t>(j);
+                    }
+                    else if (i == 237)
+                    {
+                        // Second byte invalid range 0-127
+                        for(auto l : {0, 127})
+                        {
+                            buf[1] = static_cast<std::uint8_t>(l);
+                            BEAST_EXPECT(! u.write(buf, 3));
+                            u.reset();
+                            // Segmented sequence second byte invalid
+                            BEAST_EXPECT(!u.write(buf, 2));
+                            u.reset();
+                        }
+
+                        // Second byte invalid range 160-255
+                        for(auto l : {160, 255})
+                        {
+                            buf[1] = static_cast<std::uint8_t>(l);
+                            BEAST_EXPECT(! u.write(buf, 3));
+                            u.reset();
+                            // Segmented sequence second byte invalid
+                            BEAST_EXPECT(! u.write(buf, 2));
+                            u.reset();
+                        }
+                        buf[1] = static_cast<std::uint8_t>(j);
+                    }
+                }
+
+                // Third byte invalid range 0-127
+                for(auto k : {0, 127})
+                {
+                    buf[2] = static_cast<std::uint8_t>(k);
+                    BEAST_EXPECT(! u.write(buf, 3));
+                    u.reset();
+                }
+
+                // Third byte invalid range 192-255
+                for(auto k : {192, 255})
+                {
+                    buf[2] = static_cast<std::uint8_t>(k);
+                    BEAST_EXPECT(! u.write(buf, 3));
+                    u.reset();
+                }
+
+                // Segmented sequence third byte invalid
+                BEAST_EXPECT(u.write(buf, 2));
+                BEAST_EXPECT(! u.write(&buf[2], 1));
+                u.reset();
+            }
+
+            // Second byte invalid range 0-127 or 0-159
+            for(auto j : {0, b - 1})
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+                BEAST_EXPECT(! u.write(buf, 3));
+                u.reset();
+            }
+
+            // Second byte invalid range 160-255 or 192-255
+            for(auto j : {e + 1, 255})
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+                BEAST_EXPECT(! u.write(buf, 3));
+                u.reset();
+            }
+
+            // Segmented sequence second byte invalid
+            if (i == 224) {
+                BEAST_EXPECT(u.write(buf, 1));
+                BEAST_EXPECT(!u.finish());
+            }
+            else
+            {
+                BEAST_EXPECT(u.write(buf, 1));
+                BEAST_EXPECT(!u.write(&buf[1], 1));
+            }
+            u.reset();
+        }
+    }
+
+    void
+    testFourByteSequence()
+    {
+        using net::const_buffer;
+        utf8_checker u;
+        std::uint8_t buf[4];
+        // First byte valid range 240-244
+        for(auto i : {240, 244})
+        {
+            buf[0] = static_cast<std::uint8_t>(i);
+
+            std::int32_t const b = (i == 240 ? 144 : 128);
+            std::int32_t const e = (i == 244 ? 143 : 191);
+            for(auto j = b; j <= e; ++j)
+            {
+                buf[1] = static_cast<std::uint8_t>(j);
+
+                // Second byte valid range 144-191 or 128-191 or 128-143
+                for(auto k : {128, 191})
+                {
+                    buf[2] = static_cast<std::uint8_t>(k);
+
+                    // Third byte valid range 128-191
+                    for(auto n : {128, 191})
+                    {
+                        // Fourth byte valid range 128-191
+                        buf[3] = static_cast<std::uint8_t>(n);
+                        BEAST_EXPECT(u.write(buf, 4));
+                        BEAST_EXPECT(u.finish());
+                        // Segmented sequence
+                        BEAST_EXPECT(u.write(buf, 1));
+                        BEAST_EXPECT(u.write(&buf[1], 3));
+                        u.reset();
+                        // Segmented sequence
+                        BEAST_EXPECT(u.write(buf, 2));
+                        BEAST_EXPECT(u.write(&buf[2], 2));
+                        u.reset();
+                        // Segmented sequence
+                        BEAST_EXPECT(u.write(buf, 3));
+                        BEAST_EXPECT(u.write(&buf[3], 1));
+                        u.reset();
+
+                        if (i == 240)
+                        {
+                            // Second byte invalid range 0-143
+                            for(auto r : {0, 143})
+                            {
+                                buf[1] = static_cast<std::uint8_t>(r);
+                                BEAST_EXPECT(! u.write(buf, 4));
+                                u.reset();
+                                // Segmented sequence second byte invalid
+                                BEAST_EXPECT(! u.write(buf, 2));
+                                u.reset();
+                            }
+
+                            // Second byte invalid range 192-255
+                            for(auto r : {192, 255})
+                            {
+                                buf[1] = static_cast<std::uint8_t>(r);
+                                BEAST_EXPECT(! u.write(buf, 4));
+                                u.reset();
+                                // Segmented sequence second byte invalid
+                                BEAST_EXPECT(!u.write(buf, 2));
+                                u.reset();
+                            }
+                            buf[1] = static_cast<std::uint8_t>(j);
+                        }
+                        else if (i == 244)
+                        {
+                            // Second byte invalid range 0-127
+                            for(auto r : {0, 127})
+                            {
+                                buf[1] = static_cast<std::uint8_t>(r);
+                                BEAST_EXPECT(! u.write(buf, 4));
+                                u.reset();
+                                // Segmented sequence second byte invalid
+                                BEAST_EXPECT(! u.write(buf, 2));
+                                u.reset();
+                            }
+                            // Second byte invalid range 144-255
+                            for(auto r : {144, 255})
+                            {
+                                buf[1] = static_cast<std::uint8_t>(r);
+                                BEAST_EXPECT(! u.write(buf, 4));
+                                u.reset();
+                                // Segmented sequence second byte invalid
+                                BEAST_EXPECT(! u.write(buf, 2));
+                                u.reset();
+                            }
+                            buf[1] = static_cast<std::uint8_t>(j);
+                        }
+                    }
+
+                    // Fourth byte invalid ranges 0-127, 192-255
+                    for(auto r : {0, 127, 192, 255})
+                    {
+                        buf[3] = static_cast<std::uint8_t>(r);
+                        BEAST_EXPECT(! u.write(buf, 4));
+                        u.reset();
+                    }
+
+                    // Segmented sequence fourth byte invalid
+                    BEAST_EXPECT(u.write(buf, 3));
+                    BEAST_EXPECT(! u.write(&buf[3], 1));
+                    u.reset();
+                }
+
+                // Third byte invalid ranges 0-127, 192-255
+                for(auto r : {0, 127, 192, 255})
+                {
+                    buf[2] = static_cast<std::uint8_t>(r);
+                    BEAST_EXPECT(! u.write(buf, 4));
+                    u.reset();
+                }
+
+                // Segmented sequence third byte invalid
+                BEAST_EXPECT(u.write(buf, 2));
+                BEAST_EXPECT(! u.write(&buf[2], 1));
+                u.reset();
+            }
+
+            // Second byte invalid range 0-127 or 0-143
+            for(auto r : {0, b - 1})
+            {
+                buf[1] = static_cast<std::uint8_t>(r);
+                BEAST_EXPECT(! u.write(buf, 4));
+                u.reset();
+            }
+
+            // Second byte invalid range 144-255 or 192-255
+            for(auto r : {e + 1, 255})
+            {
+                buf[1] = static_cast<std::uint8_t>(r);
+                BEAST_EXPECT(! u.write(buf, 4));
+                u.reset();
+            }
+
+            // Segmented sequence second byte invalid
+            BEAST_EXPECT(u.write(buf, 1));
+            BEAST_EXPECT(! u.write(&buf[1], 1));
+
+            u.reset();
+        }
+
+        // First byte invalid range 245-255
+        for(auto r : {245, 255})
+        {
+            buf[0] = static_cast<std::uint8_t>(r);
+            BEAST_EXPECT(! u.write(buf, 4));
+            u.reset();
+        }
+    }
+
+    void
+    testWithStreamBuffer()
+    {
+        {
+            // Valid UTF8 encoded text
+            std::vector<std::vector<std::uint8_t>> const data{{
+                    0x48,0x65,0x69,0x7A,0xC3,0xB6,0x6C,0x72,0xC3,0xBC,0x63,0x6B,
+                    0x73,0x74,0x6F,0xC3,0x9F,0x61,0x62,0x64,0xC3,0xA4,0x6D,0x70,
+                    0x66,0x75,0x6E,0x67
+                }, {
+                    0xCE,0x93,0xCE,0xB1,0xCE,0xB6,0xCE,0xAD,0xCE,0xB5,0xCF,0x82,
+                    0x20,0xCE,0xBA,0xCE,0xB1,0xE1,0xBD,0xB6,0x20,0xCE,0xBC,0xCF,
+                    0x85,0xCF,0x81,0xCF,0x84,0xCE,0xB9,0xE1,0xBD,0xB2,0xCF,0x82,
+                    0x20,0xCE,0xB4,0xE1,0xBD,0xB2,0xCE,0xBD,0x20,0xCE,0xB8,0xE1,
+                    0xBD,0xB0,0x20,0xCE,0xB2,0xCF,0x81,0xE1,0xBF,0xB6,0x20,0xCF,
+                    0x80,0xCE,0xB9,0xE1,0xBD,0xB0,0x20,0xCF,0x83,0xCF,0x84,0xE1,
+                    0xBD,0xB8,0x20,0xCF,0x87,0xCF,0x81,0xCF,0x85,0xCF,0x83,0xCE,
+                    0xB1,0xCF,0x86,0xE1,0xBD,0xB6,0x20,0xCE,0xBE,0xCE,0xAD,0xCF,
+                    0x86,0xCF,0x89,0xCF,0x84,0xCE,0xBF
+                }, {
+                    0xC3,0x81,0x72,0x76,0xC3,0xAD,0x7A,0x74,0xC5,0xB1,0x72,0xC5,
+                    0x91,0x20,0x74,0xC3,0xBC,0x6B,0xC3,0xB6,0x72,0x66,0xC3,0xBA,
+                    0x72,0xC3,0xB3,0x67,0xC3,0xA9,0x70
+                }, {
+                    240, 144, 128, 128
+                }
+            };
+            utf8_checker u;
+            for(auto const& s : data)
+            {
+                static std::size_t constexpr size = 3;
+                std::size_t n = s.size();
+                buffers_suffix<
+                    net::const_buffer> cb{
+                        net::const_buffer(s.data(), n)};
+                multi_buffer b;
+                while(n)
+                {
+                    auto const amount = (std::min)(n, size);
+                    b.commit(net::buffer_copy(
+                        b.prepare(amount), cb));
+                    cb.consume(amount);
+                    n -= amount;
+                }
+                BEAST_EXPECT(u.write(b.data()));
+                BEAST_EXPECT(u.finish());
+            }
+        }
+    }
+
+    void
+    testBranches()
+    {
+        // switch to slow loop from alignment loop
+        {
+            char buf[32];
+            for(unsigned i = 0; i < sizeof(buf); i += 2)
+            {
+                buf[i  ] = '\xc2';
+                buf[i+1] = '\x80';
+            }
+            auto p = reinterpret_cast<char const*>(sizeof(std::size_t) * (
+                (std::uintptr_t(buf) + sizeof(std::size_t) - 1) /
+                    sizeof(std::size_t))) + 2;
+            utf8_checker u;
+            BEAST_EXPECT(u.write(
+                reinterpret_cast<std::uint8_t const*>(p),
+                    sizeof(buf)-(p-buf)));
+            BEAST_EXPECT(u.finish());
+        }
+
+        // invalid code point in the last dword of a fast run
+        {
+            char buf[20];
+            auto p = reinterpret_cast<char*>(sizeof(std::size_t) * (
+                (std::uintptr_t(buf) + sizeof(std::size_t) - 1) /
+                    sizeof(std::size_t)));
+            BOOST_ASSERT(p + 12 <= buf + sizeof(buf));
+            auto const in = p;
+            *p++ = '*'; *p++ = '*'; *p++ = '*'; *p++ = '*';
+            *p++ = '*'; *p++ = '*'; *p++ = '*'; *p++ = '*';
+            p[0] = '\x80'; // invalid
+            p[1] = '*';
+            p[2] = '*';
+            p[3] = '*';
+            utf8_checker u;
+            BEAST_EXPECT(! u.write(reinterpret_cast<
+                std::uint8_t const*>(in), 12));
+        }
+    }
+
+    void 
+    AutodeskTests() 
+    {
+        std::vector<std::vector<std::uint8_t>> const data{
+            { 's','t','a','r','t', 0xE0 },
+            { 0xA6, 0x81, 'e','n','d' } };
+        utf8_checker u;
+        for(auto const& s : data)
+        {
+            std::size_t n = s.size();
+            buffers_suffix<net::const_buffer> cb{net::const_buffer(s.data(), n)};
+            multi_buffer b;
+            while(n)
+            {
+                auto const amount = (std::min)(n, std::size_t(3)/*size*/);
+                b.commit(net::buffer_copy(b.prepare(amount), cb));
+                cb.consume(amount);
+                n -= amount;
+            }
+            BEAST_EXPECT(u.write(b.data()));
+        }
+        BEAST_EXPECT(u.finish());
+    }
+
+    void 
+    AutobahnTest(std::vector<std::vector<std::uint8_t>>&& data, std::vector<bool> result) 
+    {
+        BEAST_EXPECT(data.size() == result.size());
+        utf8_checker u;
+        for(std::size_t i = 0; i < data.size(); ++i)
+        {
+            auto const& s = data[i];
+
+            std::size_t n = s.size();
+            buffers_suffix<net::const_buffer> cb{net::const_buffer(s.data(), n)};
+            multi_buffer b;
+            while(n)
+            {
+                auto const amount = (std::min)(n, std::size_t(3)/*size*/);
+                b.commit(net::buffer_copy(b.prepare(amount), cb));
+                cb.consume(amount);
+                n -= amount;
+            }
+            BEAST_EXPECT(u.write(b.data()) == result[i]);
+        }
+    }
+
+    void
+    run() override
+    {
+        testOneByteSequence();
+        testTwoByteSequence();
+        testThreeByteSequence();
+        testFourByteSequence();
+        testWithStreamBuffer();
+        testBranches();
+        AutodeskTests();
+        // 6.4.2
+        AutobahnTest(std::vector<std::vector<std::uint8_t>>{
+            { 0xCE, 0xBA, 0xE1, 0xBD, 0xB9, 0xCF, 0x83, 0xCE, 0xBC, 0xCE, 0xB5, 0xF4 },
+            { 0x90 }, { 0x80, 0x80, 0x65, 0x64, 0x69, 0x74, 0x65, 0x64 } },
+            { true, false, false});
+        // 6.4.4
+        AutobahnTest(std::vector<std::vector<std::uint8_t>>{
+            { 0xCE, 0xBA, 0xE1, 0xBD, 0xB9, 0xCF, 0x83, 0xCE, 0xBC, 0xCE, 0xB5, 0xF4 },
+            { 0x90 } },
+            { true, false });
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,utf8_checker);
+
+} // detail
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/websocket/write.cpp b/src/boost/libs/beast/test/beast/websocket/write.cpp
new file mode 100644
index 000000000..c9b0b7ff4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/websocket/write.cpp
@@ -0,0 +1,736 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/websocket/stream.hpp>
+
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/strand.hpp>
+
+#include "test.hpp"
+
+namespace boost {
+namespace beast {
+namespace websocket {
+
+class write_test : public websocket_test_suite
+{
+public:
+    template<bool deflateSupported, class Wrap>
+    void
+    doTestWrite(Wrap const& w)
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = false;
+        pmd.server_enable = false;
+
+        // already closed
+        {
+            echo_server es{log};
+            stream<test::stream> ws{ioc_};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            ws.close({});
+            try
+            {
+                w.write(ws, sbuf(""));
+                fail("", __FILE__, __LINE__);
+            }
+            catch(system_error const& se)
+            {
+                BEAST_EXPECTS(
+                    se.code() == net::error::operation_aborted,
+                    se.code().message());
+            }
+        }
+
+        // message
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.auto_fragment(false);
+            ws.binary(false);
+            std::string const s = "Hello, world!";
+            w.write(ws, net::buffer(s));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(ws.got_text());
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // empty message
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.text(true);
+            w.write(ws, net::const_buffer{});
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(ws.got_text());
+            BEAST_EXPECT(b.size() == 0);
+        });
+
+        // fragmented message
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.auto_fragment(false);
+            ws.binary(false);
+            std::string const s = "Hello, world!";
+            w.write_some(ws, false, net::buffer(s.data(), 5));
+            w.write_some(ws, true, net::buffer(s.data() + 5, s.size() - 5));
+            multi_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(ws.got_text());
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // continuation
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            std::string const s = "Hello";
+            std::size_t const chop = 3;
+            BOOST_ASSERT(chop < s.size());
+            w.write_some(ws, false,
+                net::buffer(s.data(), chop));
+            w.write_some(ws, true, net::buffer(
+                s.data() + chop, s.size() - chop));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // mask
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.auto_fragment(false);
+            std::string const s = "Hello";
+            w.write(ws, net::buffer(s));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // mask (large)
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.auto_fragment(false);
+            ws.write_buffer_bytes(16);
+            std::string const s(32, '*');
+            w.write(ws, net::buffer(s));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // mask, autofrag
+        doTest<deflateSupported>(pmd,
+        [&](ws_type_t<deflateSupported>& ws)
+        {
+            ws.auto_fragment(true);
+            std::string const s(16384, '*');
+            w.write(ws, net::buffer(s));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // nomask
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log, kind::async_client};
+            ws_type_t<deflateSupported> ws{ts};
+            ws.next_layer().connect(es.stream());
+            try
+            {
+                es.async_handshake();
+                w.accept(ws);
+                ws.auto_fragment(false);
+                std::string const s = "Hello";
+                w.write(ws, net::buffer(s));
+                flat_buffer b;
+                w.read(ws, b);
+                BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                w.close(ws, {});
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+            ts.close();
+        });
+
+        // nomask, autofrag
+        doStreamLoop([&](test::stream& ts)
+        {
+            echo_server es{log, kind::async_client};
+            ws_type_t<deflateSupported> ws{ts};
+            ws.next_layer().connect(es.stream());
+            try
+            {
+                es.async_handshake();
+                w.accept(ws);
+                ws.auto_fragment(true);
+                std::string const s(16384, '*');
+                w.write(ws, net::buffer(s));
+                flat_buffer b;
+                w.read(ws, b);
+                BEAST_EXPECT(buffers_to_string(b.data()) == s);
+                w.close(ws, {});
+            }
+            catch(...)
+            {
+                ts.close();
+                throw;
+            }
+            ts.close();
+        });
+    }
+
+    template<class Wrap>
+    void
+    doTestWriteDeflate(Wrap const& w)
+    {
+        permessage_deflate pmd;
+        pmd.client_enable = true;
+        pmd.server_enable = true;
+        pmd.compLevel = 1;
+
+        // deflate
+        doTest(pmd, [&](ws_type& ws)
+        {
+            auto const& s = random_string();
+            ws.binary(true);
+            w.write(ws, net::buffer(s));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // deflate, continuation
+        doTest(pmd, [&](ws_type& ws)
+        {
+            std::string const s = "Hello";
+            std::size_t const chop = 3;
+            BOOST_ASSERT(chop < s.size());
+            // This call should produce no
+            // output due to compression latency.
+            w.write_some(ws, false,
+                net::buffer(s.data(), chop));
+            w.write_some(ws, true, net::buffer(
+                s.data() + chop, s.size() - chop));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+
+        // deflate, no context takeover
+        pmd.client_no_context_takeover = true;
+        doTest(pmd, [&](ws_type& ws)
+        {
+            auto const& s = random_string();
+            ws.binary(true);
+            w.write(ws, net::buffer(s));
+            flat_buffer b;
+            w.read(ws, b);
+            BEAST_EXPECT(buffers_to_string(b.data()) == s);
+        });
+    }
+
+    void
+    testWrite()
+    {
+        doTestWrite<false>(SyncClient{});
+        doTestWrite<true>(SyncClient{});
+        doTestWriteDeflate(SyncClient{});
+
+        yield_to([&](yield_context yield)
+        {
+            doTestWrite<false>(AsyncClient{yield});
+            doTestWrite<true>(AsyncClient{yield});
+            doTestWriteDeflate(AsyncClient{yield});
+        });
+    }
+
+    void
+    testPausationAbandoning()
+    {
+        struct test_op
+        {
+            std::shared_ptr<stream<test::stream>> s_;
+
+            void operator()(
+                boost::system::error_code = {},
+                std::size_t = 0)
+            {
+                BEAST_FAIL();
+            }
+        };
+
+        std::weak_ptr<stream<test::stream>> weak_ws;
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            auto ws = std::make_shared<stream<test::stream>>(ioc);
+            test_op op{ws};
+            ws->next_layer().connect(es.stream());
+            ws->handshake("localhost", "/");
+            ws->async_ping("", op);
+            BEAST_EXPECT(ws->impl_->wr_block.is_locked());
+            ws->async_write(sbuf("*"), op);
+            weak_ws = ws;
+            ws->next_layer().close();
+        }
+        BEAST_EXPECT(weak_ws.expired());
+    }
+
+    void
+    testWriteSuspend()
+    {
+        // suspend on ping
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ws.async_write(sbuf("*"),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 1);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on close
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            ws.async_close({},
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            BEAST_EXPECT(count == 0);
+            ws.async_write(sbuf("*"),
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec != net::error::operation_aborted)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on read ping + message
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            // add a ping and message to the input
+            ws.next_layer().append(string_view{
+                "\x89\x00" "\x81\x01*", 5});
+            std::size_t count = 0;
+            multi_buffer b;
+            ws.async_read(b,
+                [&](error_code ec, std::size_t)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            while(! ws.impl_->wr_block.is_locked())
+            {
+                ioc.run_one();
+                if(! BEAST_EXPECT(! ioc.stopped()))
+                    break;
+            }
+            BEAST_EXPECT(count == 0);
+            ws.async_write(sbuf("*"),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 1);
+                });
+            BEAST_EXPECT(count == 0);
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on ping: nomask, nofrag
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log, kind::async_client};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            es.async_handshake();
+            ws.accept();
+            std::size_t count = 0;
+            std::string const s(16384, '*');
+            ws.auto_fragment(false);
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 16384);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on ping: nomask, frag
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log, kind::async_client};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            es.async_handshake();
+            ws.accept();
+            std::size_t count = 0;
+            std::string const s(16384, '*');
+            ws.auto_fragment(true);
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 16384);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+            BEAST_EXPECT(count == 2);
+        });
+
+        // suspend on ping: mask, nofrag
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            std::string const s(16384, '*');
+            ws.auto_fragment(false);
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 16384);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+        });
+
+        // suspend on ping: mask, frag
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            std::string const s(16384, '*');
+            ws.auto_fragment(true);
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == 16384);
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+        });
+
+        // suspend on ping: deflate
+        doFailLoop([&](test::fail_count& fc)
+        {
+            echo_server es{log, kind::async};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc, fc};
+            {
+                permessage_deflate pmd;
+                pmd.client_enable = true;
+                pmd.compLevel = 1;
+                ws.set_option(pmd);
+            }
+            ws.next_layer().connect(es.stream());
+            ws.handshake("localhost", "/");
+            std::size_t count = 0;
+            auto const& s = random_string();
+            ws.binary(true);
+            ws.async_write(net::buffer(s),
+                [&](error_code ec, std::size_t n)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                    BEAST_EXPECT(n == s.size());
+                });
+            BEAST_EXPECT(ws.impl_->wr_block.is_locked());
+            ws.async_ping("",
+                [&](error_code ec)
+                {
+                    ++count;
+                    if(ec)
+                        BOOST_THROW_EXCEPTION(
+                            system_error{ec});
+                });
+            ioc.run();
+        });
+    }
+
+    void
+    testAsyncWriteFrame()
+    {
+        for(int i = 0; i < 2; ++i)
+        {
+            for(;;)
+            {
+                echo_server es{log, i==1 ?
+                    kind::async : kind::sync};
+                net::io_context ioc;
+                stream<test::stream> ws{ioc};
+                ws.next_layer().connect(es.stream());
+
+                error_code ec;
+                ws.handshake("localhost", "/", ec);
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    break;
+                ws.async_write_some(false,
+                    net::const_buffer{},
+                    [&](error_code, std::size_t)
+                    {
+                        fail();
+                    });
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    break;
+                //
+                // Destruction of the io_context will cause destruction
+                // of the write_some_op without invoking the final handler.
+                //
+                break;
+            }
+        }
+    }
+
+    void
+    testMoveOnly()
+    {
+        net::io_context ioc;
+        stream<test::stream> ws{ioc};
+        ws.async_write_some(
+            true, net::const_buffer{},
+            move_only_handler{});
+    }
+
+    struct copyable_handler
+    {
+        template<class... Args>
+        void
+        operator()(Args&&...) const
+        {
+        }
+    };
+
+    void
+    testAsioHandlerInvoke()
+    {
+        // make sure things compile, also can set a
+        // breakpoint in asio_handler_invoke to make sure
+        // it is instantiated.
+        {
+            net::io_context ioc;
+            net::strand<
+                net::io_context::executor_type> s(
+                    ioc.get_executor());
+            stream<test::stream> ws{ioc};
+            flat_buffer b;
+            ws.async_write(net::const_buffer{},
+                net::bind_executor(s,
+                    copyable_handler{}));
+        }
+    }
+
+    /*
+        https://github.com/boostorg/beast/issues/300
+
+        Write a message as two individual frames
+    */
+    void
+    testIssue300()
+    {
+        for(int i = 0; i < 2; ++i )
+        {
+            echo_server es{log, i==1 ?
+                kind::async : kind::sync};
+            net::io_context ioc;
+            stream<test::stream> ws{ioc};
+            ws.next_layer().connect(es.stream());
+
+            error_code ec;
+            ws.handshake("localhost", "/", ec);
+            if(! BEAST_EXPECTS(! ec, ec.message()))
+                return;
+            ws.write_some(false, sbuf("u"));
+            ws.write_some(true, sbuf("v"));
+            multi_buffer b;
+            ws.read(b, ec);
+            BEAST_EXPECTS(! ec, ec.message());
+        }
+    }
+
+    /*
+        https://github.com/boostorg/beast/issues/1666
+        
+        permessage-deflate not working in version 1.70.
+    */
+    void
+    testIssue1666()
+    {
+        net::io_context ioc;
+        permessage_deflate pmd;
+        pmd.client_enable = true;
+        pmd.server_enable = true;
+        stream<test::stream> ws0{ioc};
+        stream<test::stream> ws1{ioc};
+        ws0.next_layer().connect(ws1.next_layer());
+        ws0.set_option(pmd);
+        ws1.set_option(pmd);
+        ws1.async_accept(
+            [](error_code ec)
+            {
+                BEAST_EXPECTS(! ec, ec.message());
+            });
+        ws0.async_handshake("test", "/",
+            [](error_code ec)
+            {
+                BEAST_EXPECTS(! ec, ec.message());
+            });
+        ioc.run();
+        ioc.restart();
+        std::string s(256, '*');
+        auto const n0 =
+            ws0.next_layer().nwrite_bytes();
+        error_code ec;
+        BEAST_EXPECTS(! ec, ec.message());
+        ws1.write(net::buffer(s), ec);
+        auto const n1 =
+            ws0.next_layer().nwrite_bytes();
+        // Make sure the string was actually compressed
+        BEAST_EXPECT(n1 < n0 + s.size());
+    }
+
+    void
+    run() override
+    {
+        testWrite();
+        testPausationAbandoning();
+        testWriteSuspend();
+        testAsyncWriteFrame();
+        testMoveOnly();
+        testIssue300();
+        testIssue1666();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,websocket,write);
+
+} // websocket
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/zlib.cpp b/src/boost/libs/beast/test/beast/zlib.cpp
new file mode 100644
index 000000000..c0cf68a6c
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// If including Windows.h generates errors, it
+// means that min/max macros are being substituted.
+#ifdef _MSC_VER
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#endif
+
+// Test that header file is self-contained.
+#include <boost/beast/zlib.hpp>
diff --git a/src/boost/libs/beast/test/beast/zlib/CMakeLists.txt b/src/boost/libs/beast/test/beast/zlib/CMakeLists.txt
new file mode 100644
index 000000000..ecb9898ab
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib/CMakeLists.txt
@@ -0,0 +1,34 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/extern/zlib-1.2.11 zlib)
+GroupSources (test/beast/zlib "/")
+
+if (MSVC)
+    set_source_files_properties (${ZLIB_SOURCES} PROPERTIES COMPILE_FLAGS "/wd4127 /wd4131 /wd4244")
+endif()
+
+add_executable (tests-beast-zlib
+    ${BOOST_BEAST_FILES}
+    ${ZLIB_SOURCES}
+    Jamfile
+    error.cpp
+    deflate_stream.cpp
+    inflate_stream.cpp
+    zlib.cpp
+)
+
+target_link_libraries(tests-beast-zlib
+    lib-asio
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-beast-zlib PROPERTY FOLDER "tests")
diff --git a/src/boost/libs/beast/test/beast/zlib/Jamfile b/src/boost/libs/beast/test/beast/zlib/Jamfile
new file mode 100644
index 000000000..b191a2423
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib/Jamfile
@@ -0,0 +1,44 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    error.cpp
+    deflate_stream.cpp
+    inflate_stream.cpp
+    zlib.cpp
+    ;
+
+local RUN_TESTS ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f)
+        $(ZLIB_SOURCES)
+        /boost/beast/test//lib-test
+    ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
+
+exe fat-tests
+    :
+    $(ZLIB_SOURCES)
+    $(SOURCES)
+    /boost/beast/test//lib-test
+    ;
+
+explicit fat-tests ;
+
+run
+    $(ZLIB_SOURCES)
+    $(SOURCES)
+    /boost/beast/test//lib-test
+    : : : : run-fat-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/beast/zlib/deflate_stream.cpp b/src/boost/libs/beast/test/beast/zlib/deflate_stream.cpp
new file mode 100644
index 000000000..0129ce118
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib/deflate_stream.cpp
@@ -0,0 +1,635 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/zlib/deflate_stream.hpp>
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <array>
+#include <cstdint>
+#include <numeric>
+#include <random>
+
+#include "zlib-1.2.11/zlib.h"
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class deflate_stream_test : public beast::unit_test::suite
+{
+    struct ICompressor {
+        virtual void init() = 0;
+        virtual void init(
+            int level,
+            int windowBits,
+            int memLevel,
+            int strategy) = 0;
+
+        virtual std::size_t avail_in() const noexcept = 0;
+        virtual void avail_in(std::size_t) noexcept = 0;
+        virtual void const* next_in() const noexcept = 0;
+        virtual void next_in(const void*) noexcept = 0;
+        virtual std::size_t avail_out() const noexcept = 0;
+        virtual void avail_out(std::size_t) noexcept = 0;
+        virtual void* next_out() const noexcept = 0;
+        virtual void next_out(void*) noexcept = 0;
+        virtual std::size_t total_out() const noexcept = 0;
+
+        virtual std::size_t bound(std::size_t) = 0;
+        virtual error_code write(Flush) = 0;
+        virtual ~ICompressor() = default;
+    };
+    class ZlibCompressor : public ICompressor {
+        z_stream zs{};
+
+    public:
+        ZlibCompressor() = default;
+        void init() override {
+            deflateEnd(&zs);
+            zs = {};
+            const auto res = deflateInit2(&zs, -1, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
+            if(res != Z_OK)
+               throw std::invalid_argument{"zlib compressor: failure"};
+        }
+        void init(
+            int level,
+            int windowBits,
+            int memLevel,
+            int strategy) override
+        {
+            deflateEnd(&zs);
+            zs = {};
+            const auto res = deflateInit2(&zs, level, Z_DEFLATED, -windowBits, memLevel, strategy);
+            if(res != Z_OK)
+               BOOST_THROW_EXCEPTION(std::invalid_argument{"zlib compressor: bad arg"});
+        }
+
+        virtual std::size_t avail_in() const noexcept override  { return zs.avail_in; }
+        virtual void avail_in(std::size_t n) noexcept override { zs.avail_in = n; }
+        virtual void const* next_in() const noexcept override { return zs.next_in; }
+        virtual void next_in(const void* ptr) noexcept override { zs.next_in = const_cast<Bytef*>(static_cast<const Bytef*>(ptr)); }
+        virtual std::size_t avail_out() const noexcept override { return zs.avail_out; }
+        virtual void avail_out(std::size_t n_out) noexcept override { zs.avail_out = n_out; }
+        virtual void* next_out() const noexcept override { return zs.next_out; }
+        virtual void next_out(void* ptr) noexcept override { zs.next_out = (Bytef*)ptr; }
+        virtual std::size_t total_out() const noexcept override { return zs.total_out; }
+
+        std::size_t bound(std::size_t src_size) override {
+           return deflateBound(&zs, static_cast<uLong>(src_size));
+        }
+        error_code write(Flush flush) override {
+            constexpr static int zlib_flushes[] = {0, Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH, Z_FINISH, Z_TREES};
+            const auto zlib_flush = zlib_flushes[static_cast<int>(flush)];
+            if(zs.next_in == nullptr && zs.avail_in != 0)
+              BOOST_THROW_EXCEPTION(std::invalid_argument{"zlib compressor: invalid input"});
+            const auto res = deflate(&zs, zlib_flush);
+            switch(res){
+            case Z_OK:
+                return {};
+            case Z_STREAM_END:
+                return error::end_of_stream;
+            case Z_STREAM_ERROR:
+                return error::stream_error;
+            case Z_BUF_ERROR:
+                return error::need_buffers;
+            default:
+                throw;
+            }
+        }
+
+        ~ZlibCompressor() override {
+            deflateEnd(&zs);
+        }
+    } zlib_compressor;
+    class BeastCompressor : public ICompressor {
+        z_params zp;
+        deflate_stream ds;
+
+    public:
+        BeastCompressor() = default;
+        void init() override {
+          zp = {};
+          ds.clear();
+          ds.reset();
+        }
+        void init(
+            int level,
+            int windowBits,
+            int memLevel,
+            int strategy) override
+        {
+            zp = {};
+            ds.clear();
+            ds.reset(
+                level,
+                windowBits,
+                memLevel,
+                toStrategy(strategy));
+        }
+
+        virtual std::size_t avail_in() const noexcept override  { return zp.avail_in; }
+        virtual void avail_in(std::size_t n) noexcept override { zp.avail_in = n; }
+        virtual void const* next_in() const noexcept override { return zp.next_in; }
+        virtual void next_in(const void* ptr) noexcept override { zp.next_in = ptr; }
+        virtual std::size_t avail_out() const noexcept override { return zp.avail_out; }
+        virtual void avail_out(std::size_t n_out) noexcept override { zp.avail_out = n_out; }
+        virtual void* next_out() const noexcept override { return zp.next_out; }
+        virtual void next_out(void* ptr) noexcept override { zp.next_out = (Bytef*)ptr; }
+        virtual std::size_t total_out() const noexcept override { return zp.total_out; }
+
+        std::size_t bound(std::size_t src_size) override {
+            return ds.upper_bound(src_size);
+        }
+        error_code write(Flush flush) override {
+          error_code ec{};
+          ds.write(zp, flush, ec);
+          return ec;
+        }
+
+        ~BeastCompressor() override = default;
+    } beast_compressor;
+
+public:
+    // Lots of repeats, limited char range
+    static
+    std::string
+    corpus1(std::size_t n)
+    {
+        static std::string const alphabet{
+            "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+        };
+        std::string s;
+        s.reserve(n + 5);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::size_t> d0{
+            0, alphabet.size() - 1};
+        std::uniform_int_distribution<std::size_t> d1{
+            1, 5};
+        while(s.size() < n)
+        {
+            auto const rep = d1(g);
+            auto const ch = alphabet[d0(g)];
+            s.insert(s.end(), rep, ch);
+        }
+        s.resize(n);
+        return s;
+    }
+
+    // Random data
+    static
+    std::string
+    corpus2(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::uint32_t> d0{0, 255};
+        while(n--)
+            s.push_back(static_cast<char>(d0(g)));
+        return s;
+    }
+
+    static
+    std::string
+    compress(
+        string_view const& in,
+        int level,                  // 0=none, 1..9, -1=default
+        int windowBits,             // 9..15
+        int memLevel)               // 1..9 (8=default)
+    {
+        int const strategy = Z_DEFAULT_STRATEGY;
+        int result;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = deflateInit2(
+            &zs,
+            level,
+            Z_DEFLATED,
+            -windowBits,
+            memLevel,
+            strategy);
+        if(result != Z_OK)
+            throw std::logic_error{"deflateInit2 failed"};
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        std::string out;
+        out.resize(deflateBound(&zs,
+            static_cast<uLong>(in.size())));
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        result = deflate(&zs, Z_FULL_FLUSH);
+        if(result != Z_OK)
+            throw std::logic_error("deflate failed");
+        out.resize(zs.total_out);
+        deflateEnd(&zs);
+        return out;
+    }
+
+    static
+    std::string
+    decompress(string_view const& in)
+    {
+        int result;
+        std::string out;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = inflateInit2(&zs, -15);
+        if(result != Z_OK)
+            throw std::logic_error{"inflateInit2 failed"};
+        try
+        {
+            zs.next_in = (Bytef*)in.data();
+            zs.avail_in = static_cast<uInt>(in.size());
+            for(;;)
+            {
+                out.resize(zs.total_out + 1024);
+                zs.next_out = (Bytef*)&out[zs.total_out];
+                zs.avail_out = static_cast<uInt>(
+                    out.size() - zs.total_out);
+                result = inflate(&zs, Z_SYNC_FLUSH);
+                if( result == Z_NEED_DICT ||
+                    result == Z_DATA_ERROR ||
+                    result == Z_MEM_ERROR)
+                {
+                    throw std::logic_error("inflate failed");
+                }
+                if(zs.avail_out > 0)
+                    break;
+                if(result == Z_STREAM_END)
+                    break;
+            }
+            out.resize(zs.total_out);
+            inflateEnd(&zs);
+        }
+        catch(...)
+        {
+            inflateEnd(&zs);
+            throw;
+        }
+        return out;
+    }
+
+    //--------------------------------------------------------------------------
+
+    using self = deflate_stream_test;
+    typedef void(self::*pmf_t)(
+        ICompressor& c,
+        int level, int windowBits, int memLevel,
+        int strategy, std::string const&);
+
+    static
+    Strategy
+    toStrategy(int strategy)
+    {
+        switch(strategy)
+        {
+        default:
+        case 0: return Strategy::normal;
+        case 1: return Strategy::filtered;
+        case 2: return Strategy::huffman;
+        case 3: return Strategy::rle;
+        case 4: return Strategy::fixed;
+        }
+    }
+
+    void
+    doDeflate1_beast(
+        ICompressor& c,
+        int level, int windowBits, int memLevel,
+        int strategy, std::string const& check)
+    {
+        std::string out;
+        c.init(
+            level,
+            windowBits,
+            memLevel,
+            strategy);
+        out.resize(c.bound(check.size()));
+        c.next_in(check.data());
+        c.avail_in(check.size());
+        c.next_out((void*)out.data());
+        c.avail_out(out.size());
+        {
+            bool progress = true;
+            for(;;)
+            {
+                error_code ec = c.write(Flush::full);
+                if( ec == error::need_buffers ||
+                    ec == error::end_of_stream) // per zlib FAQ
+                    goto fin;
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    goto err;
+                if(! BEAST_EXPECT(progress))
+                    goto err;
+                progress = false;
+            }
+        }
+
+    fin:
+        out.resize(c.total_out());
+        BEAST_EXPECT(decompress(out) == check);
+
+    err:
+        ;
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    doDeflate2_beast(
+        ICompressor& c,
+        int level, int windowBits, int memLevel,
+        int strategy, std::string const& check)
+    {
+        for(std::size_t i = 1; i < check.size(); ++i)
+        {
+            for(std::size_t j = 1;; ++j)
+            {
+                c.init(
+                    level,
+                    windowBits,
+                    memLevel,
+                    strategy);
+                std::string out;
+                out.resize(c.bound(check.size()));
+                if(j >= out.size())
+                    break;
+                c.next_in((void*)check.data());
+                c.avail_in(i);
+                c.next_out((void*)out.data());
+                c.avail_out(j);
+                bool bi = false;
+                bool bo = false;
+                for(;;)
+                {
+                    error_code ec = c.write(
+                        bi ? Flush::full : Flush::none);
+                    if( ec == error::need_buffers ||
+                        ec == error::end_of_stream) // per zlib FAQ
+                        goto fin;
+                    if(! BEAST_EXPECTS(! ec, ec.message()))
+                        goto err;
+                    if(c.avail_in() == 0 && ! bi)
+                    {
+                        bi = true;
+                        c.avail_in(check.size() - i);
+                    }
+                    if(c.avail_out() == 0 && ! bo)
+                    {
+                        bo = true;
+                        c.avail_out(out.size() - j);
+                    }
+                }
+
+            fin:
+                out.resize(c.total_out());
+                BEAST_EXPECT(decompress(out) == check);
+
+            err:
+                ;
+            }
+        }
+    }
+
+    //--------------------------------------------------------------------------
+
+    void
+    doMatrix(ICompressor& c, std::string const& check, pmf_t pmf)
+    {
+        for(int level = 0; level <= 9; ++level)
+        {
+            for(int windowBits = 8; windowBits <= 9; ++windowBits)
+            {
+                // zlib has a bug with windowBits==8
+                if(windowBits == 8)
+                    continue;
+                for(int strategy = 0; strategy <= 4; ++strategy)
+                {
+                    for (int memLevel = 8; memLevel <= 9; ++memLevel)
+                    {
+                        (this->*pmf)(
+                            c, level, windowBits, memLevel, strategy, check);
+                    }
+                }
+            }
+        }
+
+        // Check default settings
+        (this->*pmf)(c, compression::default_size, 15, 8, 0, check);
+    }
+
+    void
+    testDeflate(ICompressor& c)
+    {
+        doMatrix(c, "Hello, world!", &self::doDeflate1_beast);
+        doMatrix(c, "Hello, world!", &self::doDeflate2_beast);
+        log << "no-silence keepalive" << std::endl;
+        doMatrix(c, corpus1(56), &self::doDeflate2_beast);
+        doMatrix(c, corpus1(1024), &self::doDeflate1_beast);
+    }
+
+    void testInvalidSettings(ICompressor& c)
+    {
+        except<std::invalid_argument>(
+            [&]()
+            {
+                c.init(-42, 15, 8, static_cast<int>(Strategy::normal));
+            });
+        except<std::invalid_argument>(
+            [&]()
+            {
+                c.init(compression::default_size, -1, 8, static_cast<int>(Strategy::normal));
+            });
+        except<std::invalid_argument>(
+            [&]()
+            {
+                c.init(compression::default_size, 15, -1, static_cast<int>(Strategy::normal));
+            });
+        except<std::invalid_argument>(
+            [&]()
+            {
+                c.init();
+                c.avail_in(1);
+                c.next_in(nullptr);
+                c.write(Flush::full);
+            });
+    }
+
+    void
+    testWriteAfterFinish(ICompressor& c)
+    {
+        c.init();
+        std::string out;
+        out.resize(1024);
+        string_view s = "Hello";
+        c.next_in(s.data());
+        c.avail_in(s.size());
+        c.next_out(&out.front());
+        c.avail_out(out.size());
+        error_code ec = c.write(Flush::sync);
+        BEAST_EXPECT(!ec);
+        c.next_in(nullptr);
+        c.avail_in(0);
+        ec = c.write(Flush::finish);
+        BEAST_EXPECT(ec == error::end_of_stream);
+        c.next_in(s.data());
+        c.avail_in(s.size());
+        c.next_out(&out.front());
+        c.avail_out(out.size());
+        ec = c.write(Flush::sync);
+        BEAST_EXPECT(ec == error::stream_error);
+        ec = c.write(Flush::finish);
+        BEAST_EXPECT(ec == error::need_buffers);
+    }
+
+    void
+    testFlushPartial(ICompressor& c)
+    {
+        c.init();
+        std::string out;
+        out.resize(1024);
+        string_view s = "Hello";
+        c.next_in(s.data());
+        c.avail_in(s.size());
+        c.next_out(&out.front());
+        c.avail_out(out.size());
+        error_code ec;
+        ec = c.write(Flush::none);
+        BEAST_EXPECT(!ec);
+        ec = c.write(Flush::partial);
+        BEAST_EXPECT(!ec);
+    }
+
+    void
+    testFlushAtLiteralBufferFull(ICompressor& c)
+    {
+        struct fixture
+        {
+            ICompressor& c;
+            explicit fixture(ICompressor&c, std::size_t n, Strategy s) : c(c)
+            {
+                c.init(8, 15, 1, static_cast<int>(s));
+                std::iota(in.begin(), in.end(), std::uint8_t{0});
+                out.resize(n);
+                c.next_in(in.data());
+                c.avail_in(in.size());
+                c.next_out(&out.front());
+                c.avail_out(out.size());
+            }
+
+            std::array<std::uint8_t, 255> in;
+            std::string out;
+        };
+
+        for (auto s : {Strategy::huffman, Strategy::rle, Strategy::normal})
+        {
+            {
+                fixture f{c, 264, s};
+                error_code ec = c.write(Flush::finish);
+                BEAST_EXPECT(ec == error::end_of_stream);
+                BEAST_EXPECT(c.avail_out() == 1);
+            }
+
+            {
+                fixture f{c,263, s};
+                error_code ec = c.write(Flush::finish);
+                BEAST_EXPECT(!ec);
+                BEAST_EXPECT(c.avail_out() == 0);
+            }
+
+            {
+                fixture f{c, 20, s};
+                error_code ec = c.write(Flush::sync);
+                BEAST_EXPECT(!ec);
+            }
+
+        }
+    }
+
+    void
+    testRLEMatchLengthExceedLookahead(ICompressor& c)
+    {
+        std::vector<std::uint8_t> in;
+        in.resize(300);
+
+        c.init(8, 15, 1, static_cast<int>(Strategy::rle));
+        std::fill_n(in.begin(), 4, 'a');
+        std::string out;
+        out.resize(in.size() * 2);
+        c.next_in(in.data());
+        c.avail_in(in.size());
+        c.next_out(&out.front());
+        c.avail_out(out.size());
+
+        error_code ec;
+        ec = c.write(Flush::sync);
+        BEAST_EXPECT(!ec);
+    }
+
+    void
+    testFlushAfterDistMatch(ICompressor& c)
+    {
+        for (auto out_size : {144, 129})
+        {
+            std::array<std::uint8_t, 256> in{};
+            // 125 will mostly fill the lit buffer, so emitting a distance code
+            // results in a flush.
+            auto constexpr n = 125;
+            std::iota(in.begin(), in.begin() + n,
+                static_cast<std::uint8_t>(0));
+            std::iota(in.begin() + n, in.end(),
+                static_cast<std::uint8_t>(0));
+
+            c.init(8, 15, 1, static_cast<int>(Strategy::normal));
+            std::string out;
+            out.resize(out_size);
+            c.next_in(in.data());
+            c.avail_in(in.size());
+            c.next_out(&out.front());
+            c.avail_out(out.size());
+
+            error_code ec;
+            ec = c.write(Flush::sync);
+            BEAST_EXPECT(!ec);
+        }
+    }
+
+    void
+    run() override
+    {
+        log <<
+            "sizeof(deflate_stream) == " <<
+            sizeof(deflate_stream) << std::endl;
+
+        testDeflate(zlib_compressor);
+        testDeflate(beast_compressor);
+        testInvalidSettings(zlib_compressor);
+        testInvalidSettings(beast_compressor);
+        testWriteAfterFinish(zlib_compressor);
+        testWriteAfterFinish(beast_compressor);
+        testFlushPartial(zlib_compressor);
+        testFlushPartial(beast_compressor);
+        testFlushAtLiteralBufferFull(zlib_compressor);
+        testFlushAtLiteralBufferFull(beast_compressor);
+        testRLEMatchLengthExceedLookahead(zlib_compressor);
+        testRLEMatchLengthExceedLookahead(beast_compressor);
+        testFlushAfterDistMatch(zlib_compressor);
+        testFlushAfterDistMatch(beast_compressor);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,zlib,deflate_stream);
+
+} // zlib
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/zlib/error.cpp b/src/boost/libs/beast/test/beast/zlib/error.cpp
new file mode 100644
index 000000000..f9096e6e4
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib/error.cpp
@@ -0,0 +1,68 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/zlib/error.hpp>
+
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <memory>
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class error_test : public unit_test::suite
+{
+public:
+    void check(char const* name, error ev)
+    {
+        auto const ec = make_error_code(ev);
+        auto const& cat = make_error_code(
+            static_cast<zlib::error>(0)).category();
+        BEAST_EXPECT(std::string{ec.category().name()} == name);
+        BEAST_EXPECT(! ec.message().empty());
+        BEAST_EXPECT(
+            std::addressof(ec.category()) == std::addressof(cat));
+        BEAST_EXPECT(cat.equivalent(
+            static_cast<std::underlying_type<error>::type>(ev),
+                ec.category().default_error_condition(
+                    static_cast<std::underlying_type<error>::type>(ev))));
+        BEAST_EXPECT(cat.equivalent(ec,
+            static_cast<std::underlying_type<error>::type>(ev)));
+    }
+
+    void run() override
+    {
+        check("boost.beast.zlib", error::need_buffers);
+        check("boost.beast.zlib", error::end_of_stream);
+        check("boost.beast.zlib", error::need_dict);
+        check("boost.beast.zlib", error::stream_error);
+
+        check("boost.beast.zlib", error::invalid_block_type);
+        check("boost.beast.zlib", error::invalid_stored_length);
+        check("boost.beast.zlib", error::too_many_symbols);
+        check("boost.beast.zlib", error::invalid_code_lengths);
+        check("boost.beast.zlib", error::invalid_bit_length_repeat);
+        check("boost.beast.zlib", error::missing_eob);
+        check("boost.beast.zlib", error::invalid_literal_length);
+        check("boost.beast.zlib", error::invalid_distance_code);
+        check("boost.beast.zlib", error::invalid_distance);
+
+        check("boost.beast.zlib", error::over_subscribed_length);
+        check("boost.beast.zlib", error::incomplete_length_set);
+
+        check("boost.beast.zlib", error::general);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,zlib,error);
+
+} // zlib
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/zlib/inflate_stream.cpp b/src/boost/libs/beast/test/beast/zlib/inflate_stream.cpp
new file mode 100644
index 000000000..0f1e9d1d6
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib/inflate_stream.cpp
@@ -0,0 +1,660 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include <boost/beast/zlib/inflate_stream.hpp>
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <chrono>
+#include <random>
+
+#include "zlib-1.2.11/zlib.h"
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class inflate_stream_test : public beast::unit_test::suite
+{
+    struct IDecompressor {
+        virtual void init() = 0;
+        virtual void init(int windowBits) = 0;
+
+        virtual std::size_t avail_in() const noexcept = 0;
+        virtual void avail_in(std::size_t) noexcept = 0;
+        virtual void const* next_in() const noexcept = 0;
+        virtual void next_in(const void*) noexcept = 0;
+        virtual std::size_t avail_out() const noexcept = 0;
+        virtual void avail_out(std::size_t) noexcept = 0;
+        virtual void* next_out() const noexcept = 0;
+        virtual void next_out(void*) noexcept = 0;
+
+        virtual error_code write(Flush) = 0;
+        virtual ~IDecompressor() = default;
+    };
+    class ZlibDecompressor : public IDecompressor {
+       z_stream zs;
+
+    public:
+        ZlibDecompressor() = default;
+        void init(int windowBits) override
+        {
+            inflateEnd(&zs);
+            zs = {};
+            const auto res = inflateInit2(&zs, windowBits);
+            switch(res){
+            case Z_OK:
+               break;
+            case Z_MEM_ERROR:
+               throw std::runtime_error{"zlib decompressor: no memory"};
+            case Z_STREAM_ERROR:
+               throw std::domain_error{"zlib decompressor: bad arg"};
+            }
+        }
+        void init() override {
+            inflateEnd(&zs);
+            zs = {};
+            const auto res = inflateInit2(&zs, -15);
+            switch(res){
+            case Z_OK:
+                break;
+            case Z_MEM_ERROR:
+                throw std::runtime_error{"zlib decompressor: no memory"};
+            case Z_STREAM_ERROR:
+                throw std::domain_error{"zlib decompressor: bad arg"};
+            }
+        }
+
+        virtual std::size_t avail_in() const noexcept override  { return zs.avail_in; }
+        virtual void avail_in(std::size_t n) noexcept override { zs.avail_in = n; }
+        virtual void const* next_in() const noexcept override { return zs.next_in; }
+        virtual void next_in(const void* ptr) noexcept override { zs.next_in = const_cast<Bytef*>(static_cast<const Bytef*>(ptr)); }
+        virtual std::size_t avail_out() const noexcept override { return zs.avail_out; }
+        virtual void avail_out(std::size_t n_out) noexcept override { zs.avail_out = n_out; }
+        virtual void* next_out() const noexcept override { return zs.next_out; }
+        virtual void next_out(void* ptr) noexcept override { zs.next_out = (Bytef*)ptr; }
+
+        error_code write(Flush flush) override {
+            constexpr static int zlib_flushes[] = {0, Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH, Z_FINISH, Z_TREES};
+            const auto zlib_flush = zlib_flushes[static_cast<int>(flush)];
+            const auto res = inflate(&zs, zlib_flush);
+            switch(res){
+            case Z_OK:
+              return {};
+            case Z_STREAM_END:
+              return error::end_of_stream;
+            case Z_NEED_DICT:
+              return error::need_dict;
+            case Z_DATA_ERROR:
+            case Z_STREAM_ERROR:
+              return error::stream_error;
+            case Z_MEM_ERROR:
+              throw std::bad_alloc{};
+            case Z_BUF_ERROR:
+              return error::need_buffers;
+            default:
+              throw std::runtime_error{"zlib decompressor: impossible value"};
+            }
+        }
+
+        ~ZlibDecompressor() override {
+          inflateEnd(&zs);
+        }
+    } zlib_decompressor{};
+    class BeastCompressor : public IDecompressor {
+        z_params zp;
+        inflate_stream is;
+
+    public:
+        BeastCompressor() = default;
+
+        void init(int windowBits) override
+        {
+            zp = {};
+            is.clear();
+            is.reset(windowBits);
+        }
+        void init() override {
+          zp = {};
+          is.clear();
+          is.reset();
+        }
+
+        virtual std::size_t avail_in() const noexcept override  { return zp.avail_in; }
+        virtual void avail_in(std::size_t n) noexcept override { zp.avail_in = n; }
+        virtual void const* next_in() const noexcept override { return zp.next_in; }
+        virtual void next_in(const void* ptr) noexcept override { zp.next_in = ptr; }
+        virtual std::size_t avail_out() const noexcept override { return zp.avail_out; }
+        virtual void avail_out(std::size_t n_out) noexcept override { zp.avail_out = n_out; }
+        virtual void* next_out() const noexcept override { return zp.next_out; }
+        virtual void next_out(void* ptr) noexcept override { zp.next_out = (Bytef*)ptr; }
+
+        error_code write(Flush flush) override {
+            error_code ec{};
+            is.write(zp, flush, ec);
+            return ec;
+        }
+
+        ~BeastCompressor() override = default;
+    } beast_decompressor{};
+public:
+    // Lots of repeats, limited char range
+    static
+    std::string
+    corpus1(std::size_t n)
+    {
+        static std::string const alphabet{
+            "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+        };
+        std::string s;
+        s.reserve(n + 5);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::size_t> d0{
+            0, alphabet.size() - 1};
+        std::uniform_int_distribution<std::size_t> d1{
+            1, 5};
+        while(s.size() < n)
+        {
+            auto const rep = d1(g);
+            auto const ch = alphabet[d0(g)];
+            s.insert(s.end(), rep, ch);
+        }
+        s.resize(n);
+        return s;
+    }
+
+    // Random data
+    static
+    std::string
+    corpus2(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::uint32_t> d0{0, 255};
+        while(n--)
+            s.push_back(static_cast<char>(d0(g)));
+        return s;
+    }
+
+    static
+    std::string
+    compress(
+        string_view const& in,
+        int level,                  // 0=none, 1..9, -1=default
+        int windowBits,             // 9..15
+        int memLevel,               // 1..9 (8=default)
+        int strategy)               // e.g. Z_DEFAULT_STRATEGY
+    {
+        int result;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = deflateInit2(
+            &zs,
+            level,
+            Z_DEFLATED,
+            -windowBits,
+            memLevel,
+            strategy);
+        if(result != Z_OK)
+            throw std::logic_error{"deflateInit2 failed"};
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        std::string out;
+        out.resize(deflateBound(&zs,
+            static_cast<uLong>(in.size())));
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        result = deflate(&zs, Z_FULL_FLUSH);
+        if(result != Z_OK)
+            throw std::logic_error("deflate failed");
+        out.resize(zs.total_out);
+        deflateEnd(&zs);
+        return out;
+    }
+
+    //--------------------------------------------------------------------------
+
+    enum Split
+    {
+        once,
+        half,
+        full
+    };
+
+    class Beast
+    {
+        Split in_;
+        Split check_;
+        Flush flush_;
+
+    public:
+        Beast(Split in, Split check, Flush flush = Flush::sync)
+            : in_(in)
+            , check_(check)
+            , flush_(flush)
+        {
+        }
+
+        void
+        operator()(
+            int window,
+            std::string const& in,
+            std::string const& check,
+            unit_test::suite& suite) const
+        {
+            auto const f =
+            [&](std::size_t i, std::size_t j)
+            {
+                std::string out(check.size(), 0);
+                z_params zs;
+                zs.next_in = in.data();
+                zs.next_out = &out[0];
+                zs.avail_in = i;
+                zs.avail_out = j;
+                inflate_stream is;
+                is.reset(window);
+                bool bi = ! (i < in.size());
+                bool bo = ! (j < check.size());
+                for(;;)
+                {
+                    error_code ec;
+                    is.write(zs, flush_, ec);
+                    if( ec == error::need_buffers ||
+                        ec == error::end_of_stream)
+                    {
+                        out.resize(zs.total_out);
+                        suite.expect(out == check, __FILE__, __LINE__);
+                        break;
+                    }
+                    if(ec)
+                    {
+                        suite.fail(ec.message(), __FILE__, __LINE__);
+                        break;
+                    }
+                    if(zs.avail_in == 0 && ! bi)
+                    {
+                        bi = true;
+                        zs.avail_in = in.size() - i;
+                    }
+                    if(zs.avail_out == 0 && ! bo)
+                    {
+                        bo = true;
+                        zs.avail_out = check.size() - j;
+                    }
+                }
+            };
+
+            std::size_t i0, i1;
+            std::size_t j0, j1;
+
+            switch(in_)
+            {
+            default:
+            case once: i0 = in.size();     i1 = i0;         break;
+            case half: i0 = in.size() / 2; i1 = i0;         break;
+            case full: i0 = 1;             i1 = in.size();  break;
+            }
+
+            switch(check_)
+            {
+            default:
+            case once: j0 = check.size();     j1 = j0;              break;
+            case half: j0 = check.size() / 2; j1 = j0;              break;
+            case full: j0 = 1;                j1 = check.size();    break;
+            }
+
+            for(std::size_t i = i0; i <= i1; ++i)
+                for(std::size_t j = j0; j <= j1; ++j)
+                    f(i, j);
+        }
+    };
+
+    class Matrix
+    {
+        unit_test::suite& suite_;
+
+        int level_[2];
+        int window_[2];
+        int strategy_[2];
+
+    public:
+        explicit
+        Matrix(unit_test::suite& suite)
+            : suite_(suite)
+        {
+            level_[0] = 0;
+            level_[1] = 9;
+            window_[0] = 9;
+            window_[1] = 15;
+            strategy_[0] = 0;
+            strategy_[1] = 4;
+        }
+
+        void
+        level(int from, int to)
+        {
+            level_[0] = from;
+            level_[1] = to;
+        }
+
+        void
+        level(int what)
+        {
+            level(what, what);
+        }
+
+        void
+        window(int from, int to)
+        {
+            window_[0] = from;
+            window_[1] = to;
+        }
+
+        void
+        window(int what)
+        {
+            window(what, what);
+        }
+
+        void
+        strategy(int from, int to)
+        {
+            strategy_[0] = from;
+            strategy_[1] = to;
+        }
+
+        void
+        strategy(int what)
+        {
+            strategy(what, what);
+        }
+
+        template<class F>
+        void
+        operator()(
+            F const& f,
+            std::string const& check) const
+        {
+            for(auto level = level_[0];
+                level <= level_[1]; ++level)
+            {
+                for(auto window = window_[0];
+                    window <= window_[1]; ++window)
+                {
+                    for(auto strategy = strategy_[0];
+                        strategy <= strategy_[1]; ++strategy)
+                        f(
+                            window,
+                            compress(check, level, window, 4, strategy),
+                            check,
+                            suite_);
+                }
+            }
+        }
+    };
+
+    void
+    testInflate(IDecompressor& d)
+    {
+        {
+            Matrix m{*this};
+            std::string check =
+                "{\n   \"AutobahnPython/0.6.0\": {\n"
+                "      \"1.1.1\": {\n"
+                "         \"behavior\": \"OK\",\n"
+                "         \"behaviorClose\": \"OK\",\n"
+                "         \"duration\": 2,\n"
+                "         \"remoteCloseCode\": 1000,\n"
+                "         \"reportfile\": \"autobahnpython_0_6_0_case_1_1_1.json\"\n"
+                ;
+            m(Beast{half, half}, check);
+        }
+
+        {
+            Matrix m{*this};
+            auto const check = corpus1(5000);
+            m(Beast{half, half}, check);
+        }
+        {
+            Matrix m{*this};
+            auto const check = corpus2(5000);
+            m(Beast{half, half}, check);
+        }
+        {
+            Matrix m{*this};
+            auto const check = corpus1(1000);
+            m.level(6);
+            m.window(9);
+            m.strategy(Z_DEFAULT_STRATEGY);
+            m(Beast{once, full}, check);
+        }
+        {
+            Matrix m{*this};
+            auto const check = corpus2(1000);
+            m.level(6);
+            m.window(9);
+            m.strategy(Z_DEFAULT_STRATEGY);
+            m(Beast{once, full}, check);
+        }
+        {
+            Matrix m{*this};
+            m.level(6);
+            m.window(9);
+            auto const check = corpus1(200);
+            m(Beast{full, full}, check);
+        }
+        {
+            Matrix m{*this};
+            m.level(6);
+            m.window(9);
+            auto const check = corpus2(500);
+            m(Beast{full, full}, check);
+        }
+        {
+            Matrix m{*this};
+            auto const check = corpus2(1000);
+            m.level(6);
+            m.window(9);
+            m.strategy(Z_DEFAULT_STRATEGY);
+            m(Beast{full, once, Flush::block}, check);
+        }
+        {
+            // Check a known string - this provides more stable coverage,
+            // independent of the RNG-generated strings.
+            Matrix m{*this};
+            auto const check =
+                "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do "
+                "eiusmod tempor incididunt ut labore et dolore magna aliqua. "
+                "Ultricies mi eget mauris pharetra et ultrices neque ornare. Eget est "
+                "lorem ipsum dolor. Dui faucibus in ornare quam viverra orci "
+                "sagittis. Lorem mollis aliquam ut porttitor. Pretium quam vulputate "
+                "dignissim suspendisse in est ante in. Tempus egestas sed sed risus "
+                "pretium quam vulputate dignissim. Pellentesque dignissim enim sit "
+                "amet venenatis urna. Eleifend quam adipiscing vitae proin sagittis "
+                "nisl rhoncus. Aliquam etiam erat velit scelerisque in. Accumsan in "
+                "nisl nisi scelerisque eu ultrices vitae auctor eu.";
+            m.level(6);
+            m.window(9);
+            m.strategy(Z_DEFAULT_STRATEGY);
+            m(Beast{full, full}, check);
+        }
+
+        // VFALCO Fails, but I'm unsure of what the correct
+        //        behavior of Z_TREES/Flush::trees is.
+#if 0
+        {
+            Matrix m{*this};
+            auto const check = corpus2(10000);
+            m.level(6);
+            m.window(9);
+            m.strategy(Z_DEFAULT_STRATEGY);
+            m(Beast{full, once, Flush::trees}, check);
+        }
+#endif
+
+        check(d, {0x63, 0x18, 0x05, 0x40, 0x0c, 0x00}, {}, 8,  3);
+        check(d, {0xed, 0xc0, 0x81, 0x00, 0x00, 0x00, 0x00, 0x80,
+               0xa0, 0xfd, 0xa9, 0x17, 0xa9, 0x00, 0x00, 0x00,
+               0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+               0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+               0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+               0x00, 0x00, 0x00, 0x00, 0x00, 0x06}, {});
+    }
+
+    std::string check(IDecompressor& d,
+        std::initializer_list<std::uint8_t> const& in,
+        error_code expected,
+        std::size_t window_size = 15,
+        std::size_t len = -1)
+    {
+        std::string out(1024, 0);
+        z_params zs;
+        inflate_stream is;
+        is.reset(static_cast<int>(window_size));
+        boost::system::error_code ec;
+
+        zs.next_in = &*in.begin();
+        zs.next_out = &out[0];
+        zs.avail_in = std::min(in.size(), len);
+        zs.avail_out = out.size();
+
+        while (zs.avail_in > 0 && !ec)
+        {
+            is.write(zs, Flush::sync, ec);
+            auto n = std::min(zs.avail_in, len);
+            zs.next_in = static_cast<char const*>(zs.next_in) + n;
+            zs.avail_in -= n;
+        }
+
+        BEAST_EXPECT(ec == expected);
+        return out;
+    }
+
+    void testInflateErrors(IDecompressor& d)
+    {
+        check(d, {0x00, 0x00, 0x00, 0x00, 0x00},
+            error::invalid_stored_length);
+        check(d, {0x03, 0x00},
+            error::end_of_stream);
+        check(d, {0x06},
+            error::invalid_block_type);
+        check(d, {0xfc, 0x00, 0x00},
+            error::too_many_symbols);
+        check(d, {0x04, 0x00, 0xfe, 0xff},
+            error::incomplete_length_set);
+        check(d, {0x04, 0x00, 0x24, 0x49, 0x00},
+            error::invalid_bit_length_repeat);
+        check(d, {0x04, 0x00, 0x24, 0xe9, 0xff, 0xff},
+            error::invalid_bit_length_repeat);
+        check(d, {0x04, 0x00, 0x24, 0xe9, 0xff, 0x6d},
+            error::missing_eob);
+        check(d, {0x04, 0x80, 0x49, 0x92, 0x24, 0x49, 0x92, 0x24,
+               0x71, 0xff, 0xff, 0x93, 0x11, 0x00},
+            error::over_subscribed_length);
+        check(d, {0x04, 0x80, 0x49, 0x92, 0x24, 0x0f, 0xb4, 0xff,
+               0xff, 0xc3, 0x84},
+            error::incomplete_length_set);
+        check(d, {0x04, 0xc0, 0x81, 0x08, 0x00, 0x00, 0x00, 0x00,
+               0x20, 0x7f, 0xeb, 0x0b, 0x00, 0x00},
+            error::invalid_literal_length);
+        check(d, {0x02, 0x7e, 0xff, 0xff},
+            error::invalid_distance_code);
+        check(d, {0x0c, 0xc0, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00,
+               0x90, 0xff, 0x6b, 0x04, 0x00},
+            error::invalid_distance);
+        check(d, {0x05,0xe0, 0x81, 0x91, 0x24, 0xcb, 0xb2, 0x2c,
+               0x49, 0xe2, 0x0f, 0x2e, 0x8b, 0x9a, 0x47, 0x56,
+               0x9f, 0xfb, 0xfe, 0xec, 0xd2, 0xff, 0x1f},
+            error::end_of_stream);
+        check(d, {0xed, 0xc0, 0x01, 0x01, 0x00, 0x00, 0x00, 0x40,
+               0x20, 0xff, 0x57, 0x1b, 0x42, 0x2c, 0x4f},
+            error::end_of_stream);
+        check(d, {0x02, 0x08, 0x20, 0x80, 0x00, 0x03, 0x00},
+            error::end_of_stream);
+        check(d, {0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x78, 0x9c, 0xff},
+            error::invalid_stored_length);
+    }
+
+    void testInvalidSettings(IDecompressor& d)
+    {
+        except<std::domain_error>(
+            [&]()
+            {
+                d.init(7);
+            });
+    }
+
+    void testFixedHuffmanFlushTrees(IDecompressor& d)
+    {
+        std::string out(5, 0);
+        d.init();
+        boost::system::error_code ec;
+        std::initializer_list<std::uint8_t> in = {
+            0xf2, 0x48, 0xcd, 0xc9, 0xc9, 0x07, 0x00, 0x00,
+            0x00, 0xff, 0xff};
+        d.next_in(&*in.begin());
+        d.next_out(&out[0]);
+        d.avail_in(in.size());
+        d.avail_out(out.size());
+        ec = d.write(Flush::trees);
+        BEAST_EXPECT(!ec);
+        ec = d.write(Flush::sync);
+        BEAST_EXPECT(!ec);
+        BEAST_EXPECT(d.avail_out() == 0);
+        BEAST_EXPECT(out == "Hello");
+    }
+
+    void testUncompressedFlushTrees(IDecompressor& d)
+    {
+        std::string out(5, 0);
+        d.init();
+        boost::system::error_code ec;
+        std::initializer_list<std::uint8_t> in = {
+            0x00, 0x05, 0x00, 0xfa, 0xff, 0x48, 0x65, 0x6c,
+            0x6c, 0x6f, 0x00, 0x00};
+        d.next_in(&*in.begin());
+        d.next_out(&out[0]);
+        d.avail_in(in.size());
+        d.avail_out(out.size());
+        ec = d.write(Flush::trees);
+        BEAST_EXPECT(!ec);
+        ec = d.write(Flush::sync);
+        BEAST_EXPECT(!ec);
+        BEAST_EXPECT(d.avail_out() == 0);
+        BEAST_EXPECT(out == "Hello");
+    }
+
+    void
+    run() override
+    {
+        log <<
+            "sizeof(inflate_stream) == " <<
+            sizeof(inflate_stream) << std::endl;
+        testInflate(zlib_decompressor);
+        testInflate(beast_decompressor);
+        testInflateErrors(zlib_decompressor);
+        testInflateErrors(beast_decompressor);
+        testInvalidSettings(zlib_decompressor);
+        testInvalidSettings(beast_decompressor);
+        testFixedHuffmanFlushTrees(zlib_decompressor);
+        testFixedHuffmanFlushTrees(beast_decompressor);
+        testUncompressedFlushTrees(zlib_decompressor);
+        testUncompressedFlushTrees(beast_decompressor);
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,zlib,inflate_stream);
+
+} // zlib
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/beast/zlib/zlib.cpp b/src/boost/libs/beast/test/beast/zlib/zlib.cpp
new file mode 100644
index 000000000..982c315af
--- /dev/null
+++ b/src/boost/libs/beast/test/beast/zlib/zlib.cpp
@@ -0,0 +1,12 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Make sure symbols don't conflict with ZLib
+#include "zlib-1.2.11/zlib.h"
+#include <boost/beast/zlib.hpp>
diff --git a/src/boost/libs/beast/test/bench/CMakeLists.txt b/src/boost/libs/beast/test/bench/CMakeLists.txt
new file mode 100644
index 000000000..849f032a9
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/CMakeLists.txt
@@ -0,0 +1,14 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (buffers)
+add_subdirectory (parser)
+add_subdirectory (utf8_checker)
+add_subdirectory (wsload)
+add_subdirectory (zlib)
diff --git a/src/boost/libs/beast/test/bench/Jamfile b/src/boost/libs/beast/test/bench/Jamfile
new file mode 100644
index 000000000..44bae113c
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/Jamfile
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+alias run-tests :
+    buffers//run-tests
+    parser//run-tests
+    wsload//run-tests
+    utf8_checker//run-tests
+    #zlib//run-tests          # Not built, too slow
+    ;
diff --git a/src/boost/libs/beast/test/bench/buffers/CMakeLists.txt b/src/boost/libs/beast/test/bench/buffers/CMakeLists.txt
new file mode 100644
index 000000000..d05db11f4
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/buffers/CMakeLists.txt
@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/bench/buffers "/")
+
+add_executable (bench-buffers
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    bench_buffers.cpp
+)
+
+target_link_libraries(bench-buffers
+    lib-asio
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET bench-buffers PROPERTY FOLDER "tests-bench")
diff --git a/src/boost/libs/beast/test/bench/buffers/Jamfile b/src/boost/libs/beast/test/bench/buffers/Jamfile
new file mode 100644
index 000000000..c73d8a115
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/buffers/Jamfile
@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe bench-buffers :
+    bench_buffers.cpp
+    /boost/beast/test//lib-test
+    ;
+
+explicit bench-buffers ;
+
+alias run-tests :
+    [ compile bench_buffers.cpp ]
+    ;
diff --git a/src/boost/libs/beast/test/bench/buffers/bench_buffers.cpp b/src/boost/libs/beast/test/bench/buffers/bench_buffers.cpp
new file mode 100644
index 000000000..fdd00a470
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/buffers/bench_buffers.cpp
@@ -0,0 +1,241 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/buffers_range.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/core/read_size.hpp>
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <boost/asio/streambuf.hpp>
+#include <algorithm>
+#include <chrono>
+#include <cstdlib>
+#include <iomanip>
+#include <utility>
+#include <vector>
+
+namespace boost {
+namespace beast {
+
+class buffers_test : public beast::unit_test::suite
+{
+public:
+    using size_type = std::uint64_t;
+
+    class timer
+    {
+        using clock_type =
+            std::chrono::system_clock;
+
+        clock_type::time_point when_;
+
+    public:
+        using duration =
+            clock_type::duration;
+
+        timer()
+            : when_(clock_type::now())
+        {
+        }
+
+        duration
+        elapsed() const
+        {
+            return clock_type::now() - when_;
+        }
+    };
+
+    inline
+    size_type
+    throughput(std::chrono::duration<
+        double> const& elapsed, size_type items)
+    {
+        using namespace std::chrono;
+        return static_cast<size_type>(
+            1 / (elapsed/items).count());
+    }
+
+    template<class MutableBufferSequence>
+    static
+    std::size_t
+    fill(MutableBufferSequence const& buffers)
+    {
+        std::size_t n = 0;
+        for(auto b : beast::buffers_range_ref(buffers))
+        {
+            std::fill(
+                static_cast<char*>(b.data()),
+                static_cast<char*>(b.data()) +
+                    b.size(), '\0');
+            n += b.size();
+        }
+        return n;
+    }
+
+    template<class DynamicBuffer>
+    size_type
+    do_prepares(std::size_t repeat,
+        std::size_t count, std::size_t size)
+    {
+        timer t;
+        size_type total = 0;
+        for(auto i = repeat; i--;)
+        {
+            DynamicBuffer b;
+            for(auto j = count; j--;)
+            {
+                auto const n = fill(b.prepare(size));
+                b.commit(n);
+                total += n;
+            }
+        }
+        return throughput(t.elapsed(), total);
+    }
+
+    template<class DynamicBuffer>
+    size_type
+    do_hints(std::size_t repeat,
+        std::size_t count, std::size_t size)
+    {
+        timer t;
+        size_type total = 0;
+        for(auto i = repeat; i--;)
+        {
+            DynamicBuffer b;
+            for(auto j = count; j--;)
+            {
+                for(auto remain = size; remain;)
+                {
+                    auto const n = fill(b.prepare(
+                        read_size(b, remain)));
+                    b.commit(n);
+                    remain -= n;
+                    total += n;
+                }
+            }
+        }
+        return throughput(t.elapsed(), total);
+    }
+
+    template<class DynamicBuffer>
+    size_type
+    do_random(std::size_t repeat,
+        std::size_t count, std::size_t size)
+    {
+        timer t;
+        size_type total = 0;
+        for(auto i = repeat; i--;)
+        {
+            DynamicBuffer b;
+            for(auto j = count; j--;)
+            {
+                auto const n = fill(b.prepare(
+                    1 + (rand()%(2*size))));
+                b.commit(n);
+                total += n;
+            }
+        }
+        return throughput(t.elapsed(), total);
+    }
+
+    static
+    inline
+    void
+    do_trials_1(bool)
+    {
+    }
+
+    template<class F0, class... FN>
+    void
+    do_trials_1(bool print, F0&& f, FN... fn)
+    {
+        timer t;
+        using namespace std::chrono;
+        static size_type constexpr den = 1024 * 1024;
+        if(print)
+        {
+            log << std::right << std::setw(10) <<
+                ((f() + (den / 2)) / den) << " MB/s";
+            log.flush();
+        }
+        else
+        {
+            f();
+        }
+        do_trials_1(print, fn...);
+    }
+
+    template<class F0, class... FN>
+    void
+    do_trials(string_view name,
+        std::size_t trials, F0&& f0, FN... fn)
+    {
+        using namespace std::chrono;
+        // warm-up
+        do_trials_1(false, f0, fn...);
+        do_trials_1(false, f0, fn...);
+        while(trials--)
+        {
+            timer t;
+            log << std::left << std::setw(24) << name << ":";
+            log.flush();
+            do_trials_1(true, f0, fn...);
+            log << "   " <<
+                duration_cast<milliseconds>(t.elapsed()).count() << "ms";
+            log << std::endl;
+        }
+    }
+
+    void
+    run() override
+    {
+        static std::size_t constexpr trials = 1;
+        static std::size_t constexpr repeat = 250;
+        std::vector<std::pair<std::size_t, std::size_t>> params;
+        params.emplace_back(1024, 1024);
+        params.emplace_back(512, 4096);
+        params.emplace_back(256, 32768);
+        log << std::endl;
+        for(auto const& param : params)
+        {
+            auto const count = param.first;
+            auto const size = param.second;
+            auto const s = std::string("count=") + std::to_string(count) +
+                ", size=" + std::to_string(size);
+            log << std::left << std::setw(24) << s << " " <<
+                std::right << std::setw(15) << "prepare" <<
+                std::right << std::setw(15) << "with hint" <<
+                std::right << std::setw(15) << "random" <<
+                std::endl;
+            do_trials("multi_buffer", trials,
+                 [&](){ return do_prepares<multi_buffer>(repeat, count, size); }
+                ,[&](){ return do_hints   <multi_buffer>(repeat, count, size); }
+                ,[&](){ return do_random  <multi_buffer>(repeat, count, size); }
+            );
+            do_trials("flat_buffer", trials,
+                 [&](){ return do_prepares<flat_buffer>(repeat, count, size); }
+                ,[&](){ return do_hints   <flat_buffer>(repeat, count, size); }
+                ,[&](){ return do_random  <flat_buffer>(repeat, count, size); }
+            );
+            do_trials("net::streambuf", trials,
+                 [&](){ return do_prepares<net::streambuf>(repeat, count, size); }
+                ,[&](){ return do_hints   <net::streambuf>(repeat, count, size); }
+                ,[&](){ return do_random  <net::streambuf>(repeat, count, size); }
+            );
+            log << std::endl;
+        }
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,benchmarks,buffers);
+
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/bench/parser/CMakeLists.txt b/src/boost/libs/beast/test/bench/parser/CMakeLists.txt
new file mode 100644
index 000000000..4a4eb2ce9
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/CMakeLists.txt
@@ -0,0 +1,29 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/beast/http "/")
+GroupSources (test/bench/parser "/")
+
+add_executable (bench-parser
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    ${PROJECT_SOURCE_DIR}/test/beast/http/message_fuzz.hpp
+    nodejs_parser.hpp
+    nodejs_parser.cpp
+    bench_parser.cpp
+)
+
+target_link_libraries(bench-parser
+    lib-asio
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET bench-parser PROPERTY FOLDER "tests-bench")
diff --git a/src/boost/libs/beast/test/bench/parser/Jamfile b/src/boost/libs/beast/test/bench/parser/Jamfile
new file mode 100644
index 000000000..43629fc3f
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/Jamfile
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+run
+    nodejs_parser.cpp
+    bench_parser.cpp
+    /boost/beast/test//lib-test
+    : : : :
+    bench-parser ;
+
+explicit bench-parser ;
+
+alias run-tests :
+    [ compile nodejs_parser.cpp ]
+    [ compile bench_parser.cpp ]
+    ;
diff --git a/src/boost/libs/beast/test/bench/parser/bench_parser.cpp b/src/boost/libs/beast/test/bench/parser/bench_parser.cpp
new file mode 100644
index 000000000..67cc99a0c
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/bench_parser.cpp
@@ -0,0 +1,346 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include "nodejs_parser.hpp"
+
+#include "test/beast/http/message_fuzz.hpp"
+
+#include <boost/beast/http.hpp>
+#include <boost/beast/core/buffer_traits.hpp>
+#include <boost/beast/core/buffers_suffix.hpp>
+#include <boost/beast/core/buffers_to_string.hpp>
+#include <boost/beast/core/ostream.hpp>
+#include <boost/beast/core/flat_buffer.hpp>
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <chrono>
+#include <iostream>
+#include <vector>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+class parser_test : public beast::unit_test::suite
+{
+public:
+    static std::size_t constexpr N = 2000;
+
+    //using corpus = std::vector<multi_buffer>;
+    using corpus = std::vector<flat_buffer>;
+
+    corpus creq_;
+    corpus cres_;
+    std::size_t size_ = 0;
+
+    corpus
+    build_corpus(std::size_t n, std::true_type)
+    {
+        corpus v;
+        v.resize(n);
+        message_fuzz mg;
+        for(std::size_t i = 0; i < n; ++i)
+        {
+            mg.request(v[i]);
+            size_ += v[i].size();
+            BEAST_EXPECT(v[i].size() > 0);
+        }
+        return v;
+    }
+
+    corpus
+    build_corpus(std::size_t n, std::false_type)
+    {
+        corpus v;
+        v.resize(n);
+        message_fuzz mg;
+        for(std::size_t i = 0; i < n; ++i)
+        {
+            mg.response(v[i]);
+            size_ += v[i].size();
+            BEAST_EXPECT(v[i].size() > 0);
+        }
+        return v;
+    }
+
+    template<class ConstBufferSequence,
+        bool isRequest>
+    static
+    std::size_t
+    feed(ConstBufferSequence const& buffers,
+        basic_parser<isRequest>& parser,
+            error_code& ec)
+    {
+        beast::buffers_suffix<
+            ConstBufferSequence> cb{buffers};
+        std::size_t used = 0;
+        for(;;)
+        {
+            auto const n =
+                parser.put(cb, ec);
+            if(ec)
+                return 0;
+            if(n == 0)
+                break;
+            cb.consume(n);
+            used += n;
+            if(parser.is_done())
+                break;
+            if(buffer_bytes(cb) == 0)
+                break;
+        }
+        return used;
+    }
+
+    template<class Parser>
+    void
+    testParser1(std::size_t repeat, corpus const& v)
+    {
+        while(repeat--)
+            for(auto const& b : v)
+            {
+                Parser p;
+                error_code ec;
+                p.write(b.data(), ec);
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    log << buffers_to_string(b.data()) << std::endl;
+            }
+    }
+
+    template<class Parser>
+    void
+    testParser2(std::size_t repeat, corpus const& v)
+    {
+        while(repeat--)
+            for(auto const& b : v)
+            {
+                Parser p;
+                p.header_limit((std::numeric_limits<std::uint32_t>::max)());
+                error_code ec;
+                feed(b.data(), p, ec);
+                if(! BEAST_EXPECTS(! ec, ec.message()))
+                    log << buffers_to_string(b.data()) << std::endl;
+            }
+    }
+
+    template<class Function>
+    void
+    timedTest(std::size_t repeat, std::string const& name, Function&& f)
+    {
+        using namespace std::chrono;
+        using clock_type = std::chrono::high_resolution_clock;
+        log << name << std::endl;
+        for(std::size_t trial = 1; trial <= repeat; ++trial)
+        {
+            auto const t0 = clock_type::now();
+            f();
+            auto const elapsed = clock_type::now() - t0;
+            log <<
+                "Trial " << trial << ": " <<
+                duration_cast<milliseconds>(elapsed).count() << " ms" << std::endl;
+        }
+    }
+
+    template<bool isRequest>
+    struct null_parser :
+        basic_parser<isRequest>
+    {
+        void
+        on_request_impl(
+            verb, string_view, string_view,
+            int, error_code&) override
+        {
+        }
+
+        void
+        on_response_impl(
+            int, string_view, int,
+            error_code&) override
+        {
+        }
+
+        void
+        on_field_impl(
+            field, string_view, string_view,
+            error_code&) override
+        {
+        }
+
+        void
+        on_header_impl(error_code&) override
+        {
+        }
+
+        void
+        on_body_init_impl(
+            boost::optional<std::uint64_t> const&,
+            error_code&) override
+        {
+        }
+
+        std::size_t
+        on_body_impl(
+            string_view,
+            error_code&) override
+        {
+            return 0;
+        }
+
+        void
+        on_chunk_header_impl(
+            std::uint64_t,
+            string_view,
+            error_code&) override
+        {
+        }
+
+        std::size_t
+        on_chunk_body_impl(
+            std::uint64_t,
+            string_view,
+            error_code&) override
+        {
+            return 0;
+        }
+
+        void
+        on_finish_impl(error_code&) override
+        {
+        }
+    };
+
+    template<bool isRequest, class Body, class Fields>
+    struct bench_parser : basic_parser<isRequest>
+    {
+        using mutable_buffers_type =
+            net::mutable_buffer;
+
+        void
+        on_request_impl(verb, string_view,
+            string_view, int, error_code&) override
+        {
+        }
+
+        void
+        on_response_impl(int,
+            string_view, int, error_code&) override
+        {
+        }
+
+        void
+        on_field_impl(field,
+            string_view, string_view, error_code&) override
+        {
+        }
+
+        void
+        on_header_impl(error_code&) override
+        {
+        }
+
+        void
+        on_body_init_impl(
+            boost::optional<std::uint64_t> const&,
+            error_code&) override
+        {
+        }
+
+        std::size_t
+        on_body_impl(
+            string_view s, error_code&) override
+        {
+            return s.size();
+        }
+
+        void
+        on_chunk_header_impl(std::uint64_t,
+            string_view, error_code&) override
+        {
+        }
+
+        std::size_t
+        on_chunk_body_impl(std::uint64_t,
+            string_view s, error_code&) override
+        {
+            return s.size();
+        }
+
+        void
+        on_finish_impl(error_code&) override
+        {
+        }
+    };
+
+    void
+    testSpeed()
+    {
+        static std::size_t constexpr Trials = 5;
+        static std::size_t constexpr Repeat = 500;
+
+        creq_ = build_corpus(N/2, std::true_type{});
+        cres_ = build_corpus(N/2, std::false_type{});
+
+        log << "sizeof(request parser)  == " <<
+            sizeof(null_parser<true>) << '\n';
+
+        log << "sizeof(response parser) == " <<
+            sizeof(null_parser<false>)<< '\n';
+
+        testcase << "Parser speed test, " <<
+            ((Repeat * size_ + 512) / 1024) << "KB in " <<
+                (Repeat * (creq_.size() + cres_.size())) << " messages";
+
+#if 0
+        timedTest(Trials, "http::parser",
+            [&]
+            {
+                testParser2<request_parser<dynamic_body>>(Repeat, creq_);
+                testParser2<response_parser<dynamic_body>>(Repeat, cres_);
+            });
+#endif
+#if 1
+        timedTest(Trials, "http::basic_parser",
+            [&]
+            {
+                testParser2<bench_parser<
+                    true, dynamic_body, fields> >(
+                        Repeat, creq_);
+                testParser2<bench_parser<
+                    false, dynamic_body, fields>>(
+                        Repeat, cres_);
+            });
+#if 1
+        timedTest(Trials, "nodejs_parser",
+            [&]
+            {
+                testParser1<nodejs_parser<
+                    true, dynamic_body, fields>>(
+                        Repeat, creq_);
+                testParser1<nodejs_parser<
+                    false, dynamic_body, fields>>(
+                        Repeat, cres_);
+            });
+#endif
+#endif
+        pass();
+    }
+
+    void run() override
+    {
+        pass();
+        testSpeed();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,benchmarks,parser);
+
+} // http
+} // beast
+} // boost
+
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs-parser/AUTHORS b/src/boost/libs/beast/test/bench/parser/nodejs-parser/AUTHORS
new file mode 100644
index 000000000..5323b685c
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs-parser/AUTHORS
@@ -0,0 +1,68 @@
+# Authors ordered by first contribution.
+Ryan Dahl <ry@tinyclouds.org>
+Jeremy Hinegardner <jeremy@hinegardner.org>
+Sergey Shepelev <temotor@gmail.com>
+Joe Damato <ice799@gmail.com>
+tomika <tomika_nospam@freemail.hu>
+Phoenix Sol <phoenix@burninglabs.com>
+Cliff Frey <cliff@meraki.com>
+Ewen Cheslack-Postava <ewencp@cs.stanford.edu>
+Santiago Gala <sgala@apache.org>
+Tim Becker <tim.becker@syngenio.de>
+Jeff Terrace <jterrace@gmail.com>
+Ben Noordhuis <info@bnoordhuis.nl>
+Nathan Rajlich <nathan@tootallnate.net>
+Mark Nottingham <mnot@mnot.net>
+Aman Gupta <aman@tmm1.net>
+Tim Becker <tim.becker@kuriositaet.de>
+Sean Cunningham <sean.cunningham@mandiant.com>
+Peter Griess <pg@std.in>
+Salman Haq <salman.haq@asti-usa.com>
+Cliff Frey <clifffrey@gmail.com>
+Jon Kolb <jon@b0g.us>
+Fouad Mardini <f.mardini@gmail.com>
+Paul Querna <pquerna@apache.org>
+Felix Geisendörfer <felix@debuggable.com>
+koichik <koichik@improvement.jp>
+Andre Caron <andre.l.caron@gmail.com>
+Ivo Raisr <ivosh@ivosh.net>
+James McLaughlin <jamie@lacewing-project.org>
+David Gwynne <loki@animata.net>
+Thomas LE ROUX <thomas@november-eleven.fr>
+Randy Rizun <rrizun@ortivawireless.com>
+Andre Louis Caron <andre.louis.caron@usherbrooke.ca>
+Simon Zimmermann <simonz05@gmail.com>
+Erik Dubbelboer <erik@dubbelboer.com>
+Martell Malone <martellmalone@gmail.com>
+Bertrand Paquet <bpaquet@octo.com>
+BogDan Vatra <bogdan@kde.org>
+Peter Faiman <peter@thepicard.org>
+Corey Richardson <corey@octayn.net>
+Tóth Tamás <tomika_nospam@freemail.hu>
+Cam Swords <cam.swords@gmail.com>
+Chris Dickinson <christopher.s.dickinson@gmail.com>
+Uli Köhler <ukoehler@btronik.de>
+Charlie Somerville <charlie@charliesomerville.com>
+Patrik Stutz <patrik.stutz@gmail.com>
+Fedor Indutny <fedor.indutny@gmail.com>
+runner <runner.mei@gmail.com>
+Alexis Campailla <alexis@janeasystems.com>
+David Wragg <david@wragg.org>
+Vinnie Falco <vinnie.falco@gmail.com>
+Alex Butum <alexbutum@linux.com>
+Rex Feng <rexfeng@gmail.com>
+Alex Kocharin <alex@kocharin.ru>
+Mark Koopman <markmontymark@yahoo.com>
+Helge Heß <me@helgehess.eu>
+Alexis La Goutte <alexis.lagoutte@gmail.com>
+George Miroshnykov <george.miroshnykov@gmail.com>
+Maciej Małecki <me@mmalecki.com>
+Marc O'Morain <github.com@marcomorain.com>
+Jeff Pinner <jpinner@twitter.com>
+Timothy J Fontaine <tjfontaine@gmail.com>
+Akagi201 <akagi201@gmail.com>
+Romain Giraud <giraud.romain@gmail.com>
+Jay Satiro <raysatiro@yahoo.com>
+Arne Steen <Arne.Steen@gmx.de>
+Kjell Schubert <kjell.schubert@gmail.com>
+Olivier Mengué <dolmen@cpan.org>
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs-parser/LICENSE-MIT b/src/boost/libs/beast/test/bench/parser/nodejs-parser/LICENSE-MIT
new file mode 100644
index 000000000..58010b388
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs-parser/LICENSE-MIT
@@ -0,0 +1,23 @@
+http_parser.c is based on src/http/ngx_http_parse.c from NGINX copyright
+Igor Sysoev.
+
+Additional changes are licensed under the same terms as NGINX and
+copyright Joyent, Inc. and other Node contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE. 
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs-parser/README.md b/src/boost/libs/beast/test/bench/parser/nodejs-parser/README.md
new file mode 100644
index 000000000..eedd7f8c9
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs-parser/README.md
@@ -0,0 +1,246 @@
+HTTP Parser
+===========
+
+[![Build Status](https://api.travis-ci.org/nodejs/http-parser.svg?branch=master)](https://travis-ci.org/nodejs/http-parser)
+
+This is a parser for HTTP messages written in C. It parses both requests and
+responses. The parser is designed to be used in performance HTTP
+applications. It does not make any syscalls nor allocations, it does not
+buffer data, it can be interrupted at anytime. Depending on your
+architecture, it only requires about 40 bytes of data per message
+stream (in a web server that is per connection).
+
+Features:
+
+  * No dependencies
+  * Handles persistent streams (keep-alive).
+  * Decodes chunked encoding.
+  * Upgrade support
+  * Defends against buffer overflow attacks.
+
+The parser extracts the following information from HTTP messages:
+
+  * Header fields and values
+  * Content-Length
+  * Request method
+  * Response status code
+  * Transfer-Encoding
+  * HTTP version
+  * Request URL
+  * Message body
+
+
+Usage
+-----
+
+One `http_parser` object is used per TCP connection. Initialize the struct
+using `http_parser_init()` and set the callbacks. That might look something
+like this for a request parser:
+```c
+http_parser_settings settings;
+settings.on_url = my_url_callback;
+settings.on_header_field = my_header_field_callback;
+/* ... */
+
+http_parser *parser = malloc(sizeof(http_parser));
+http_parser_init(parser, HTTP_REQUEST);
+parser->data = my_socket;
+```
+
+When data is received on the socket execute the parser and check for errors.
+
+```c
+size_t len = 80*1024, nparsed;
+char buf[len];
+ssize_t recved;
+
+recved = recv(fd, buf, len, 0);
+
+if (recved < 0) {
+  /* Handle error. */
+}
+
+/* Start up / continue the parser.
+ * Note we pass recved==0 to signal that EOF has been received.
+ */
+nparsed = http_parser_execute(parser, &settings, buf, recved);
+
+if (parser->upgrade) {
+  /* handle new protocol */
+} else if (nparsed != recved) {
+  /* Handle error. Usually just close the connection. */
+}
+```
+
+HTTP needs to know where the end of the stream is. For example, sometimes
+servers send responses without Content-Length and expect the client to
+consume input (for the body) until EOF. To tell http_parser about EOF, give
+`0` as the fourth parameter to `http_parser_execute()`. Callbacks and errors
+can still be encountered during an EOF, so one must still be prepared
+to receive them.
+
+Scalar valued message information such as `status_code`, `method`, and the
+HTTP version are stored in the parser structure. This data is only
+temporally stored in `http_parser` and gets reset on each new message. If
+this information is needed later, copy it out of the structure during the
+`headers_complete` callback.
+
+The parser decodes the transfer-encoding for both requests and responses
+transparently. That is, a chunked encoding is decoded before being sent to
+the on_body callback.
+
+
+The Special Problem of Upgrade
+------------------------------
+
+HTTP supports upgrading the connection to a different protocol. An
+increasingly common example of this is the WebSocket protocol which sends
+a request like
+
+        GET /demo HTTP/1.1
+        Upgrade: WebSocket
+        Connection: Upgrade
+        Host: example.com
+        Origin: http://example.com
+        WebSocket-Protocol: sample
+
+followed by non-HTTP data.
+
+(See [RFC6455](https://tools.ietf.org/html/rfc6455) for more information the
+WebSocket protocol.)
+
+To support this, the parser will treat this as a normal HTTP message without a
+body, issuing both on_headers_complete and on_message_complete callbacks. However
+http_parser_execute() will stop parsing at the end of the headers and return.
+
+The user is expected to check if `parser->upgrade` has been set to 1 after
+`http_parser_execute()` returns. Non-HTTP data begins at the buffer supplied
+offset by the return value of `http_parser_execute()`.
+
+
+Callbacks
+---------
+
+During the `http_parser_execute()` call, the callbacks set in
+`http_parser_settings` will be executed. The parser maintains state and
+never looks behind, so buffering the data is not necessary. If you need to
+save certain data for later usage, you can do that from the callbacks.
+
+There are two types of callbacks:
+
+* notification `typedef int (*http_cb) (http_parser*);`
+    Callbacks: on_message_begin, on_headers_complete, on_message_complete.
+* data `typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);`
+    Callbacks: (requests only) on_url,
+               (common) on_header_field, on_header_value, on_body;
+
+Callbacks must return 0 on success. Returning a non-zero value indicates
+error to the parser, making it exit immediately.
+
+For cases where it is necessary to pass local information to/from a callback,
+the `http_parser` object's `data` field can be used.
+An example of such a case is when using threads to handle a socket connection,
+parse a request, and then give a response over that socket. By instantiation
+of a thread-local struct containing relevant data (e.g. accepted socket,
+allocated memory for callbacks to write into, etc), a parser's callbacks are
+able to communicate data between the scope of the thread and the scope of the
+callback in a threadsafe manner. This allows http-parser to be used in
+multi-threaded contexts.
+
+Example:
+```
+ typedef struct {
+  socket_t sock;
+  void* buffer;
+  int buf_len;
+ } custom_data_t;
+
+
+int my_url_callback(http_parser* parser, const char *at, size_t length) {
+  /* access to thread local custom_data_t struct.
+  Use this access save parsed data for later use into thread local
+  buffer, or communicate over socket
+  */
+  parser->data;
+  ...
+  return 0;
+}
+
+...
+
+void http_parser_thread(socket_t sock) {
+ int nparsed = 0;
+ /* allocate memory for user data */
+ custom_data_t *my_data = malloc(sizeof(custom_data_t));
+
+ /* some information for use by callbacks.
+ * achieves thread -> callback information flow */
+ my_data->sock = sock;
+
+ /* instantiate a thread-local parser */
+ http_parser *parser = malloc(sizeof(http_parser));
+ http_parser_init(parser, HTTP_REQUEST); /* initialise parser */
+ /* this custom data reference is accessible through the reference to the
+ parser supplied to callback functions */
+ parser->data = my_data;
+
+ http_parser_settings settings; / * set up callbacks */
+ settings.on_url = my_url_callback;
+
+ /* execute parser */
+ nparsed = http_parser_execute(parser, &settings, buf, recved);
+
+ ...
+ /* parsed information copied from callback.
+ can now perform action on data copied into thread-local memory from callbacks.
+ achieves callback -> thread information flow */
+ my_data->buffer;
+ ...
+}
+
+```
+
+In case you parse HTTP message in chunks (i.e. `read()` request line
+from socket, parse, read half headers, parse, etc) your data callbacks
+may be called more than once. Http-parser guarantees that data pointer is only
+valid for the lifetime of callback. You can also `read()` into a heap allocated
+buffer to avoid copying memory around if this fits your application.
+
+Reading headers may be a tricky task if you read/parse headers partially.
+Basically, you need to remember whether last header callback was field or value
+and apply the following logic:
+
+    (on_header_field and on_header_value shortened to on_h_*)
+     ------------------------ ------------ --------------------------------------------
+    | State (prev. callback) | Callback   | Description/action                         |
+     ------------------------ ------------ --------------------------------------------
+    | nothing (first call)   | on_h_field | Allocate new buffer and copy callback data |
+    |                        |            | into it                                    |
+     ------------------------ ------------ --------------------------------------------
+    | value                  | on_h_field | New header started.                        |
+    |                        |            | Copy current name,value buffers to headers |
+    |                        |            | list and allocate new buffer for new name  |
+     ------------------------ ------------ --------------------------------------------
+    | field                  | on_h_field | Previous name continues. Reallocate name   |
+    |                        |            | buffer and append callback data to it      |
+     ------------------------ ------------ --------------------------------------------
+    | field                  | on_h_value | Value for current header started. Allocate |
+    |                        |            | new buffer and copy callback data to it    |
+     ------------------------ ------------ --------------------------------------------
+    | value                  | on_h_value | Value continues. Reallocate value buffer   |
+    |                        |            | and append callback data to it             |
+     ------------------------ ------------ --------------------------------------------
+
+
+Parsing URLs
+------------
+
+A simplistic zero-copy URL parser is provided as `http_parser_parse_url()`.
+Users of this library may wish to use it to parse URLs constructed from
+consecutive `on_url` callbacks.
+
+See examples of reading in headers:
+
+* [partial example](http://gist.github.com/155877) in C
+* [from http-parser tests](http://github.com/joyent/http-parser/blob/37a0ff8/test.c#L403) in C
+* [from Node library](http://github.com/joyent/node/blob/842eaf4/src/http.js#L284) in Javascript
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs-parser/http_parser.c b/src/boost/libs/beast/test/bench/parser/nodejs-parser/http_parser.c
new file mode 100644
index 000000000..719617549
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs-parser/http_parser.c
@@ -0,0 +1,2468 @@
+/* Based on src/http/ngx_http_parse.c from NGINX copyright Igor Sysoev
+ *
+ * Additional changes are licensed under the same terms as NGINX and
+ * copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "http_parser.h"
+#include <assert.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+
+#ifndef ULLONG_MAX
+# define ULLONG_MAX ((uint64_t) -1) /* 2^64-1 */
+#endif
+
+#ifndef MIN
+# define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+#endif
+
+#ifndef BIT_AT
+# define BIT_AT(a, i)                                                \
+  (!!((unsigned int) (a)[(unsigned int) (i) >> 3] &                  \
+   (1 << ((unsigned int) (i) & 7))))
+#endif
+
+#ifndef ELEM_AT
+# define ELEM_AT(a, i, v) ((unsigned int) (i) < ARRAY_SIZE(a) ? (a)[(i)] : (v))
+#endif
+
+#define SET_ERRNO(e)                                                 \
+do {                                                                 \
+  parser->http_errno = (e);                                          \
+} while(0)
+
+#define CURRENT_STATE() p_state
+#define UPDATE_STATE(V) p_state = (enum state) (V);
+#define RETURN(V)                                                    \
+do {                                                                 \
+  parser->state = CURRENT_STATE();                                   \
+  return (V);                                                        \
+} while (0);
+#define REEXECUTE()                                                  \
+  goto reexecute;                                                    \
+
+
+#ifdef __GNUC__
+# define LIKELY(X) __builtin_expect(!!(X), 1)
+# define UNLIKELY(X) __builtin_expect(!!(X), 0)
+#else
+# define LIKELY(X) (X)
+# define UNLIKELY(X) (X)
+#endif
+
+
+/* Run the notify callback FOR, returning ER if it fails */
+#define CALLBACK_NOTIFY_(FOR, ER)                                    \
+do {                                                                 \
+  assert(HTTP_PARSER_ERRNO(parser) == HPE_OK);                       \
+                                                                     \
+  if (LIKELY(settings->on_##FOR)) {                                  \
+    parser->state = CURRENT_STATE();                                 \
+    if (UNLIKELY(0 != settings->on_##FOR(parser))) {                 \
+      SET_ERRNO(HPE_CB_##FOR);                                       \
+    }                                                                \
+    UPDATE_STATE(parser->state);                                     \
+                                                                     \
+    /* We either errored above or got paused; get out */             \
+    if (UNLIKELY(HTTP_PARSER_ERRNO(parser) != HPE_OK)) {             \
+      return (ER);                                                   \
+    }                                                                \
+  }                                                                  \
+} while (0)
+
+/* Run the notify callback FOR and consume the current byte */
+#define CALLBACK_NOTIFY(FOR)            CALLBACK_NOTIFY_(FOR, p - data + 1)
+
+/* Run the notify callback FOR and don't consume the current byte */
+#define CALLBACK_NOTIFY_NOADVANCE(FOR)  CALLBACK_NOTIFY_(FOR, p - data)
+
+/* Run data callback FOR with LEN bytes, returning ER if it fails */
+#define CALLBACK_DATA_(FOR, LEN, ER)                                 \
+do {                                                                 \
+  assert(HTTP_PARSER_ERRNO(parser) == HPE_OK);                       \
+                                                                     \
+  if (FOR##_mark) {                                                  \
+    if (LIKELY(settings->on_##FOR)) {                                \
+      parser->state = CURRENT_STATE();                               \
+      if (UNLIKELY(0 !=                                              \
+                   settings->on_##FOR(parser, FOR##_mark, (LEN)))) { \
+        SET_ERRNO(HPE_CB_##FOR);                                     \
+      }                                                              \
+      UPDATE_STATE(parser->state);                                   \
+                                                                     \
+      /* We either errored above or got paused; get out */           \
+      if (UNLIKELY(HTTP_PARSER_ERRNO(parser) != HPE_OK)) {           \
+        return (ER);                                                 \
+      }                                                              \
+    }                                                                \
+    FOR##_mark = NULL;                                               \
+  }                                                                  \
+} while (0)
+
+/* Run the data callback FOR and consume the current byte */
+#define CALLBACK_DATA(FOR)                                           \
+    CALLBACK_DATA_(FOR, p - FOR##_mark, p - data + 1)
+
+/* Run the data callback FOR and don't consume the current byte */
+#define CALLBACK_DATA_NOADVANCE(FOR)                                 \
+    CALLBACK_DATA_(FOR, p - FOR##_mark, p - data)
+
+/* Set the mark FOR; non-destructive if mark is already set */
+#define MARK(FOR)                                                    \
+do {                                                                 \
+  if (!FOR##_mark) {                                                 \
+    FOR##_mark = p;                                                  \
+  }                                                                  \
+} while (0)
+
+/* Don't allow the total size of the HTTP headers (including the status
+ * line) to exceed HTTP_MAX_HEADER_SIZE.  This check is here to protect
+ * embedders against denial-of-service attacks where the attacker feeds
+ * us a never-ending header that the embedder keeps buffering.
+ *
+ * This check is arguably the responsibility of embedders but we're doing
+ * it on the embedder's behalf because most won't bother and this way we
+ * make the web a little safer.  HTTP_MAX_HEADER_SIZE is still far bigger
+ * than any reasonable request or response so this should never affect
+ * day-to-day operation.
+ */
+#define COUNT_HEADER_SIZE(V)                                         \
+do {                                                                 \
+  parser->nread += (V);                                              \
+  if (UNLIKELY(parser->nread > (HTTP_MAX_HEADER_SIZE))) {            \
+    SET_ERRNO(HPE_HEADER_OVERFLOW);                                  \
+    goto error;                                                      \
+  }                                                                  \
+} while (0)
+
+
+#define PROXY_CONNECTION "proxy-connection"
+#define CONNECTION "connection"
+#define CONTENT_LENGTH "content-length"
+#define TRANSFER_ENCODING "transfer-encoding"
+#define UPGRADE "upgrade"
+#define CHUNKED "chunked"
+#define KEEP_ALIVE "keep-alive"
+#define CLOSE "close"
+
+
+static const char *method_strings[] =
+  {
+#define XX(num, name, string) #string,
+  HTTP_METHOD_MAP(XX)
+#undef XX
+  };
+
+
+/* Tokens as defined by rfc 2616. Also lowercases them.
+ *        token       = 1*<any CHAR except CTLs or separators>
+ *     separators     = "(" | ")" | "<" | ">" | "@"
+ *                    | "," | ";" | ":" | "\" | <">
+ *                    | "/" | "[" | "]" | "?" | "="
+ *                    | "{" | "}" | SP | HT
+ */
+static const char tokens[256] = {
+/*   0 nul    1 soh    2 stx    3 etx    4 eot    5 enq    6 ack    7 bel  */
+        0,       0,       0,       0,       0,       0,       0,       0,
+/*   8 bs     9 ht    10 nl    11 vt    12 np    13 cr    14 so    15 si   */
+        0,       0,       0,       0,       0,       0,       0,       0,
+/*  16 dle   17 dc1   18 dc2   19 dc3   20 dc4   21 nak   22 syn   23 etb */
+        0,       0,       0,       0,       0,       0,       0,       0,
+/*  24 can   25 em    26 sub   27 esc   28 fs    29 gs    30 rs    31 us  */
+        0,       0,       0,       0,       0,       0,       0,       0,
+/*  32 sp    33  !    34  "    35  #    36  $    37  %    38  &    39  '  */
+        0,      '!',      0,      '#',     '$',     '%',     '&',    '\'',
+/*  40  (    41  )    42  *    43  +    44  ,    45  -    46  .    47  /  */
+        0,       0,      '*',     '+',      0,      '-',     '.',      0,
+/*  48  0    49  1    50  2    51  3    52  4    53  5    54  6    55  7  */
+       '0',     '1',     '2',     '3',     '4',     '5',     '6',     '7',
+/*  56  8    57  9    58  :    59  ;    60  <    61  =    62  >    63  ?  */
+       '8',     '9',      0,       0,       0,       0,       0,       0,
+/*  64  @    65  A    66  B    67  C    68  D    69  E    70  F    71  G  */
+        0,      'a',     'b',     'c',     'd',     'e',     'f',     'g',
+/*  72  H    73  I    74  J    75  K    76  L    77  M    78  N    79  O  */
+       'h',     'i',     'j',     'k',     'l',     'm',     'n',     'o',
+/*  80  P    81  Q    82  R    83  S    84  T    85  U    86  V    87  W  */
+       'p',     'q',     'r',     's',     't',     'u',     'v',     'w',
+/*  88  X    89  Y    90  Z    91  [    92  \    93  ]    94  ^    95  _  */
+       'x',     'y',     'z',      0,       0,       0,      '^',     '_',
+/*  96  `    97  a    98  b    99  c   100  d   101  e   102  f   103  g  */
+       '`',     'a',     'b',     'c',     'd',     'e',     'f',     'g',
+/* 104  h   105  i   106  j   107  k   108  l   109  m   110  n   111  o  */
+       'h',     'i',     'j',     'k',     'l',     'm',     'n',     'o',
+/* 112  p   113  q   114  r   115  s   116  t   117  u   118  v   119  w  */
+       'p',     'q',     'r',     's',     't',     'u',     'v',     'w',
+/* 120  x   121  y   122  z   123  {   124  |   125  }   126  ~   127 del */
+       'x',     'y',     'z',      0,      '|',      0,      '~',       0 };
+
+
+static const int8_t unhex[256] =
+  {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  , 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1
+  ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+  };
+
+
+#if HTTP_PARSER_STRICT
+# define T(v) 0
+#else
+# define T(v) v
+#endif
+
+
+static const uint8_t normal_url_char[32] = {
+/*   0 nul    1 soh    2 stx    3 etx    4 eot    5 enq    6 ack    7 bel  */
+        0    |   0    |   0    |   0    |   0    |   0    |   0    |   0,
+/*   8 bs     9 ht    10 nl    11 vt    12 np    13 cr    14 so    15 si   */
+        0    | T(2)   |   0    |   0    | T(16)  |   0    |   0    |   0,
+/*  16 dle   17 dc1   18 dc2   19 dc3   20 dc4   21 nak   22 syn   23 etb */
+        0    |   0    |   0    |   0    |   0    |   0    |   0    |   0,
+/*  24 can   25 em    26 sub   27 esc   28 fs    29 gs    30 rs    31 us  */
+        0    |   0    |   0    |   0    |   0    |   0    |   0    |   0,
+/*  32 sp    33  !    34  "    35  #    36  $    37  %    38  &    39  '  */
+        0    |   2    |   4    |   0    |   16   |   32   |   64   |  128,
+/*  40  (    41  )    42  *    43  +    44  ,    45  -    46  .    47  /  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/*  48  0    49  1    50  2    51  3    52  4    53  5    54  6    55  7  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/*  56  8    57  9    58  :    59  ;    60  <    61  =    62  >    63  ?  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |   0,
+/*  64  @    65  A    66  B    67  C    68  D    69  E    70  F    71  G  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/*  72  H    73  I    74  J    75  K    76  L    77  M    78  N    79  O  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/*  80  P    81  Q    82  R    83  S    84  T    85  U    86  V    87  W  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/*  88  X    89  Y    90  Z    91  [    92  \    93  ]    94  ^    95  _  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/*  96  `    97  a    98  b    99  c   100  d   101  e   102  f   103  g  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/* 104  h   105  i   106  j   107  k   108  l   109  m   110  n   111  o  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/* 112  p   113  q   114  r   115  s   116  t   117  u   118  v   119  w  */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |  128,
+/* 120  x   121  y   122  z   123  {   124  |   125  }   126  ~   127 del */
+        1    |   2    |   4    |   8    |   16   |   32   |   64   |   0, };
+
+#undef T
+
+enum state
+  { s_dead = 1 /* important that this is > 0 */
+
+  , s_start_req_or_res
+  , s_res_or_resp_H
+  , s_start_res
+  , s_res_H
+  , s_res_HT
+  , s_res_HTT
+  , s_res_HTTP
+  , s_res_first_http_major
+  , s_res_http_major
+  , s_res_first_http_minor
+  , s_res_http_minor
+  , s_res_first_status_code
+  , s_res_status_code
+  , s_res_status_start
+  , s_res_status
+  , s_res_line_almost_done
+
+  , s_start_req
+
+  , s_req_method
+  , s_req_spaces_before_url
+  , s_req_schema
+  , s_req_schema_slash
+  , s_req_schema_slash_slash
+  , s_req_server_start
+  , s_req_server
+  , s_req_server_with_at
+  , s_req_path
+  , s_req_query_string_start
+  , s_req_query_string
+  , s_req_fragment_start
+  , s_req_fragment
+  , s_req_http_start
+  , s_req_http_H
+  , s_req_http_HT
+  , s_req_http_HTT
+  , s_req_http_HTTP
+  , s_req_first_http_major
+  , s_req_http_major
+  , s_req_first_http_minor
+  , s_req_http_minor
+  , s_req_line_almost_done
+
+  , s_header_field_start
+  , s_header_field
+  , s_header_value_discard_ws
+  , s_header_value_discard_ws_almost_done
+  , s_header_value_discard_lws
+  , s_header_value_start
+  , s_header_value
+  , s_header_value_lws
+
+  , s_header_almost_done
+
+  , s_chunk_size_start
+  , s_chunk_size
+  , s_chunk_parameters
+  , s_chunk_size_almost_done
+
+  , s_headers_almost_done
+  , s_headers_done
+
+  /* Important: 's_headers_done' must be the last 'header' state. All
+   * states beyond this must be 'body' states. It is used for overflow
+   * checking. See the PARSING_HEADER() macro.
+   */
+
+  , s_chunk_data
+  , s_chunk_data_almost_done
+  , s_chunk_data_done
+
+  , s_body_identity
+  , s_body_identity_eof
+
+  , s_message_done
+  };
+
+
+#define PARSING_HEADER(state) (state <= s_headers_done)
+
+
+enum header_states
+  { h_general = 0
+  , h_C
+  , h_CO
+  , h_CON
+
+  , h_matching_connection
+  , h_matching_proxy_connection
+  , h_matching_content_length
+  , h_matching_transfer_encoding
+  , h_matching_upgrade
+
+  , h_connection
+  , h_content_length
+  , h_transfer_encoding
+  , h_upgrade
+
+  , h_matching_transfer_encoding_chunked
+  , h_matching_connection_token_start
+  , h_matching_connection_keep_alive
+  , h_matching_connection_close
+  , h_matching_connection_upgrade
+  , h_matching_connection_token
+
+  , h_transfer_encoding_chunked
+  , h_connection_keep_alive
+  , h_connection_close
+  , h_connection_upgrade
+  };
+
+enum http_host_state
+  {
+    s_http_host_dead = 1
+  , s_http_userinfo_start
+  , s_http_userinfo
+  , s_http_host_start
+  , s_http_host_v6_start
+  , s_http_host
+  , s_http_host_v6
+  , s_http_host_v6_end
+  , s_http_host_v6_zone_start
+  , s_http_host_v6_zone
+  , s_http_host_port_start
+  , s_http_host_port
+};
+
+/* Macros for character classes; depends on strict-mode  */
+#define CR                  '\r'
+#define LF                  '\n'
+#define LOWER(c)            (unsigned char)(c | 0x20)
+#define IS_ALPHA(c)         (LOWER(c) >= 'a' && LOWER(c) <= 'z')
+#define IS_NUM(c)           ((c) >= '0' && (c) <= '9')
+#define IS_ALPHANUM(c)      (IS_ALPHA(c) || IS_NUM(c))
+#define IS_HEX(c)           (IS_NUM(c) || (LOWER(c) >= 'a' && LOWER(c) <= 'f'))
+#define IS_MARK(c)          ((c) == '-' || (c) == '_' || (c) == '.' || \
+  (c) == '!' || (c) == '~' || (c) == '*' || (c) == '\'' || (c) == '(' || \
+  (c) == ')')
+#define IS_USERINFO_CHAR(c) (IS_ALPHANUM(c) || IS_MARK(c) || (c) == '%' || \
+  (c) == ';' || (c) == ':' || (c) == '&' || (c) == '=' || (c) == '+' || \
+  (c) == '$' || (c) == ',')
+
+#define STRICT_TOKEN(c)     (tokens[(unsigned char)c])
+
+#if HTTP_PARSER_STRICT
+#define TOKEN(c)            (tokens[(unsigned char)c])
+#define IS_URL_CHAR(c)      (BIT_AT(normal_url_char, (unsigned char)c))
+#define IS_HOST_CHAR(c)     (IS_ALPHANUM(c) || (c) == '.' || (c) == '-')
+#else
+#define TOKEN(c)            ((c == ' ') ? ' ' : tokens[(unsigned char)c])
+#define IS_URL_CHAR(c)                                                         \
+  (BIT_AT(normal_url_char, (unsigned char)c) || ((c) & 0x80))
+#define IS_HOST_CHAR(c)                                                        \
+  (IS_ALPHANUM(c) || (c) == '.' || (c) == '-' || (c) == '_')
+#endif
+
+/**
+ * Verify that a char is a valid visible (printable) US-ASCII
+ * character or %x80-FF
+ **/
+#define IS_HEADER_CHAR(ch)                                                     \
+  (ch == CR || ch == LF || ch == 9 || ((unsigned char)ch > 31 && ch != 127))
+
+#define start_state (parser->type == HTTP_REQUEST ? s_start_req : s_start_res)
+
+
+#if HTTP_PARSER_STRICT
+# define STRICT_CHECK(cond)                                          \
+do {                                                                 \
+  if (cond) {                                                        \
+    SET_ERRNO(HPE_STRICT);                                           \
+    goto error;                                                      \
+  }                                                                  \
+} while (0)
+# define NEW_MESSAGE() (http_should_keep_alive(parser) ? start_state : s_dead)
+#else
+# define STRICT_CHECK(cond)
+# define NEW_MESSAGE() start_state
+#endif
+
+
+/* Map errno values to strings for human-readable output */
+#define HTTP_STRERROR_GEN(n, s) { "HPE_" #n, s },
+static struct {
+  const char *name;
+  const char *description;
+} http_strerror_tab[] = {
+  HTTP_ERRNO_MAP(HTTP_STRERROR_GEN)
+};
+#undef HTTP_STRERROR_GEN
+
+int http_message_needs_eof(const http_parser *parser);
+
+/* Our URL parser.
+ *
+ * This is designed to be shared by http_parser_execute() for URL validation,
+ * hence it has a state transition + byte-for-byte interface. In addition, it
+ * is meant to be embedded in http_parser_parse_url(), which does the dirty
+ * work of turning state transitions URL components for its API.
+ *
+ * This function should only be invoked with non-space characters. It is
+ * assumed that the caller cares about (and can detect) the transition between
+ * URL and non-URL states by looking for these.
+ */
+static enum state
+parse_url_char(enum state s, const char ch)
+{
+  if (ch == ' ' || ch == '\r' || ch == '\n') {
+    return s_dead;
+  }
+
+#if HTTP_PARSER_STRICT
+  if (ch == '\t' || ch == '\f') {
+    return s_dead;
+  }
+#endif
+
+  switch (s) {
+    case s_req_spaces_before_url:
+      /* Proxied requests are followed by scheme of an absolute URI (alpha).
+       * All methods except CONNECT are followed by '/' or '*'.
+       */
+
+      if (ch == '/' || ch == '*') {
+        return s_req_path;
+      }
+
+      if (IS_ALPHA(ch)) {
+        return s_req_schema;
+      }
+
+      break;
+
+    case s_req_schema:
+      if (IS_ALPHA(ch)) {
+        return s;
+      }
+
+      if (ch == ':') {
+        return s_req_schema_slash;
+      }
+
+      break;
+
+    case s_req_schema_slash:
+      if (ch == '/') {
+        return s_req_schema_slash_slash;
+      }
+
+      break;
+
+    case s_req_schema_slash_slash:
+      if (ch == '/') {
+        return s_req_server_start;
+      }
+
+      break;
+
+    case s_req_server_with_at:
+      if (ch == '@') {
+        return s_dead;
+      }
+
+    /* FALLTHROUGH */
+    case s_req_server_start:
+    case s_req_server:
+      if (ch == '/') {
+        return s_req_path;
+      }
+
+      if (ch == '?') {
+        return s_req_query_string_start;
+      }
+
+      if (ch == '@') {
+        return s_req_server_with_at;
+      }
+
+      if (IS_USERINFO_CHAR(ch) || ch == '[' || ch == ']') {
+        return s_req_server;
+      }
+
+      break;
+
+    case s_req_path:
+      if (IS_URL_CHAR(ch)) {
+        return s;
+      }
+
+      switch (ch) {
+        case '?':
+          return s_req_query_string_start;
+
+        case '#':
+          return s_req_fragment_start;
+      }
+
+      break;
+
+    case s_req_query_string_start:
+    case s_req_query_string:
+      if (IS_URL_CHAR(ch)) {
+        return s_req_query_string;
+      }
+
+      switch (ch) {
+        case '?':
+          /* allow extra '?' in query string */
+          return s_req_query_string;
+
+        case '#':
+          return s_req_fragment_start;
+      }
+
+      break;
+
+    case s_req_fragment_start:
+      if (IS_URL_CHAR(ch)) {
+        return s_req_fragment;
+      }
+
+      switch (ch) {
+        case '?':
+          return s_req_fragment;
+
+        case '#':
+          return s;
+      }
+
+      break;
+
+    case s_req_fragment:
+      if (IS_URL_CHAR(ch)) {
+        return s;
+      }
+
+      switch (ch) {
+        case '?':
+        case '#':
+          return s;
+      }
+
+      break;
+
+    default:
+      break;
+  }
+
+  /* We should never fall out of the switch above unless there's an error */
+  return s_dead;
+}
+
+size_t http_parser_execute (http_parser *parser,
+                            const http_parser_settings *settings,
+                            const char *data,
+                            size_t len)
+{
+  char c, ch;
+  int8_t unhex_val;
+  const char *p = data;
+  const char *header_field_mark = 0;
+  const char *header_value_mark = 0;
+  const char *url_mark = 0;
+  const char *body_mark = 0;
+  const char *status_mark = 0;
+  enum state p_state = (enum state) parser->state;
+  const unsigned int lenient = parser->lenient_http_headers;
+
+  /* We're in an error state. Don't bother doing anything. */
+  if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
+    return 0;
+  }
+
+  if (len == 0) {
+    switch (CURRENT_STATE()) {
+      case s_body_identity_eof:
+        /* Use of CALLBACK_NOTIFY() here would erroneously return 1 byte read if
+         * we got paused.
+         */
+        CALLBACK_NOTIFY_NOADVANCE(message_complete);
+        return 0;
+
+      case s_dead:
+      case s_start_req_or_res:
+      case s_start_res:
+      case s_start_req:
+        return 0;
+
+      default:
+        SET_ERRNO(HPE_INVALID_EOF_STATE);
+        return 1;
+    }
+  }
+
+
+  if (CURRENT_STATE() == s_header_field)
+    header_field_mark = data;
+  if (CURRENT_STATE() == s_header_value)
+    header_value_mark = data;
+  switch (CURRENT_STATE()) {
+  case s_req_path:
+  case s_req_schema:
+  case s_req_schema_slash:
+  case s_req_schema_slash_slash:
+  case s_req_server_start:
+  case s_req_server:
+  case s_req_server_with_at:
+  case s_req_query_string_start:
+  case s_req_query_string:
+  case s_req_fragment_start:
+  case s_req_fragment:
+    url_mark = data;
+    break;
+  case s_res_status:
+    status_mark = data;
+    break;
+  default:
+    break;
+  }
+
+  for (p=data; p != data + len; p++) {
+    ch = *p;
+
+    if (PARSING_HEADER(CURRENT_STATE()))
+      COUNT_HEADER_SIZE(1);
+
+reexecute:
+    switch (CURRENT_STATE()) {
+
+      case s_dead:
+        /* this state is used after a 'Connection: close' message
+         * the parser will error out if it reads another message
+         */
+        if (LIKELY(ch == CR || ch == LF))
+          break;
+
+        SET_ERRNO(HPE_CLOSED_CONNECTION);
+        goto error;
+
+      case s_start_req_or_res:
+      {
+        if (ch == CR || ch == LF)
+          break;
+        parser->flags = 0;
+        parser->content_length = ULLONG_MAX;
+
+        if (ch == 'H') {
+          UPDATE_STATE(s_res_or_resp_H);
+
+          CALLBACK_NOTIFY(message_begin);
+        } else {
+          parser->type = HTTP_REQUEST;
+          UPDATE_STATE(s_start_req);
+          REEXECUTE();
+        }
+
+        break;
+      }
+
+      case s_res_or_resp_H:
+        if (ch == 'T') {
+          parser->type = HTTP_RESPONSE;
+          UPDATE_STATE(s_res_HT);
+        } else {
+          if (UNLIKELY(ch != 'E')) {
+            SET_ERRNO(HPE_INVALID_CONSTANT);
+            goto error;
+          }
+
+          parser->type = HTTP_REQUEST;
+          parser->method = HTTP_HEAD;
+          parser->index = 2;
+          UPDATE_STATE(s_req_method);
+        }
+        break;
+
+      case s_start_res:
+      {
+        parser->flags = 0;
+        parser->content_length = ULLONG_MAX;
+
+        switch (ch) {
+          case 'H':
+            UPDATE_STATE(s_res_H);
+            break;
+
+          case CR:
+          case LF:
+            break;
+
+          default:
+            SET_ERRNO(HPE_INVALID_CONSTANT);
+            goto error;
+        }
+
+        CALLBACK_NOTIFY(message_begin);
+        break;
+      }
+
+      case s_res_H:
+        STRICT_CHECK(ch != 'T');
+        UPDATE_STATE(s_res_HT);
+        break;
+
+      case s_res_HT:
+        STRICT_CHECK(ch != 'T');
+        UPDATE_STATE(s_res_HTT);
+        break;
+
+      case s_res_HTT:
+        STRICT_CHECK(ch != 'P');
+        UPDATE_STATE(s_res_HTTP);
+        break;
+
+      case s_res_HTTP:
+        STRICT_CHECK(ch != '/');
+        UPDATE_STATE(s_res_first_http_major);
+        break;
+
+      case s_res_first_http_major:
+        if (UNLIKELY(ch < '0' || ch > '9')) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_major = ch - '0';
+        UPDATE_STATE(s_res_http_major);
+        break;
+
+      /* major HTTP version or dot */
+      case s_res_http_major:
+      {
+        if (ch == '.') {
+          UPDATE_STATE(s_res_first_http_minor);
+          break;
+        }
+
+        if (!IS_NUM(ch)) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_major *= 10;
+        parser->http_major += ch - '0';
+
+        if (UNLIKELY(parser->http_major > 999)) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        break;
+      }
+
+      /* first digit of minor HTTP version */
+      case s_res_first_http_minor:
+        if (UNLIKELY(!IS_NUM(ch))) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_minor = ch - '0';
+        UPDATE_STATE(s_res_http_minor);
+        break;
+
+      /* minor HTTP version or end of request line */
+      case s_res_http_minor:
+      {
+        if (ch == ' ') {
+          UPDATE_STATE(s_res_first_status_code);
+          break;
+        }
+
+        if (UNLIKELY(!IS_NUM(ch))) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_minor *= 10;
+        parser->http_minor += ch - '0';
+
+        if (UNLIKELY(parser->http_minor > 999)) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        break;
+      }
+
+      case s_res_first_status_code:
+      {
+        if (!IS_NUM(ch)) {
+          if (ch == ' ') {
+            break;
+          }
+
+          SET_ERRNO(HPE_INVALID_STATUS);
+          goto error;
+        }
+        parser->status_code = ch - '0';
+        UPDATE_STATE(s_res_status_code);
+        break;
+      }
+
+      case s_res_status_code:
+      {
+        if (!IS_NUM(ch)) {
+          switch (ch) {
+            case ' ':
+              UPDATE_STATE(s_res_status_start);
+              break;
+            case CR:
+              UPDATE_STATE(s_res_line_almost_done);
+              break;
+            case LF:
+              UPDATE_STATE(s_header_field_start);
+              break;
+            default:
+              SET_ERRNO(HPE_INVALID_STATUS);
+              goto error;
+          }
+          break;
+        }
+
+        parser->status_code *= 10;
+        parser->status_code += ch - '0';
+
+        if (UNLIKELY(parser->status_code > 999)) {
+          SET_ERRNO(HPE_INVALID_STATUS);
+          goto error;
+        }
+
+        break;
+      }
+
+      case s_res_status_start:
+      {
+        if (ch == CR) {
+          UPDATE_STATE(s_res_line_almost_done);
+          break;
+        }
+
+        if (ch == LF) {
+          UPDATE_STATE(s_header_field_start);
+          break;
+        }
+
+        MARK(status);
+        UPDATE_STATE(s_res_status);
+        parser->index = 0;
+        break;
+      }
+
+      case s_res_status:
+        if (ch == CR) {
+          UPDATE_STATE(s_res_line_almost_done);
+          CALLBACK_DATA(status);
+          break;
+        }
+
+        if (ch == LF) {
+          UPDATE_STATE(s_header_field_start);
+          CALLBACK_DATA(status);
+          break;
+        }
+
+        break;
+
+      case s_res_line_almost_done:
+        STRICT_CHECK(ch != LF);
+        UPDATE_STATE(s_header_field_start);
+        break;
+
+      case s_start_req:
+      {
+        if (ch == CR || ch == LF)
+          break;
+        parser->flags = 0;
+        parser->content_length = ULLONG_MAX;
+
+        if (UNLIKELY(!IS_ALPHA(ch))) {
+          SET_ERRNO(HPE_INVALID_METHOD);
+          goto error;
+        }
+
+        parser->method = (enum http_method) 0;
+        parser->index = 1;
+        switch (ch) {
+          case 'A': parser->method = HTTP_ACL; break;
+          case 'B': parser->method = HTTP_BIND; break;
+          case 'C': parser->method = HTTP_CONNECT; /* or COPY, CHECKOUT */ break;
+          case 'D': parser->method = HTTP_DELETE; break;
+          case 'G': parser->method = HTTP_GET; break;
+          case 'H': parser->method = HTTP_HEAD; break;
+          case 'L': parser->method = HTTP_LOCK; /* or LINK */ break;
+          case 'M': parser->method = HTTP_MKCOL; /* or MOVE, MKACTIVITY, MERGE, M-SEARCH, MKCALENDAR */ break;
+          case 'N': parser->method = HTTP_NOTIFY; break;
+          case 'O': parser->method = HTTP_OPTIONS; break;
+          case 'P': parser->method = HTTP_POST;
+            /* or PROPFIND|PROPPATCH|PUT|PATCH|PURGE */
+            break;
+          case 'R': parser->method = HTTP_REPORT; /* or REBIND */ break;
+          case 'S': parser->method = HTTP_SUBSCRIBE; /* or SEARCH */ break;
+          case 'T': parser->method = HTTP_TRACE; break;
+          case 'U': parser->method = HTTP_UNLOCK; /* or UNSUBSCRIBE, UNBIND, UNLINK */ break;
+          default:
+            SET_ERRNO(HPE_INVALID_METHOD);
+            goto error;
+        }
+        UPDATE_STATE(s_req_method);
+
+        CALLBACK_NOTIFY(message_begin);
+
+        break;
+      }
+
+      case s_req_method:
+      {
+        const char *matcher;
+        if (UNLIKELY(ch == '\0')) {
+          SET_ERRNO(HPE_INVALID_METHOD);
+          goto error;
+        }
+
+        matcher = method_strings[parser->method];
+        if (ch == ' ' && matcher[parser->index] == '\0') {
+          UPDATE_STATE(s_req_spaces_before_url);
+        } else if (ch == matcher[parser->index]) {
+          ; /* nada */
+        } else if (IS_ALPHA(ch)) {
+
+          switch (parser->method << 16 | parser->index << 8 | ch) {
+#define XX(meth, pos, ch, new_meth) \
+            case (HTTP_##meth << 16 | pos << 8 | ch): \
+              parser->method = HTTP_##new_meth; break;
+
+            XX(POST,      1, 'U', PUT)
+            XX(POST,      1, 'A', PATCH)
+            XX(CONNECT,   1, 'H', CHECKOUT)
+            XX(CONNECT,   2, 'P', COPY)
+            XX(MKCOL,     1, 'O', MOVE)
+            XX(MKCOL,     1, 'E', MERGE)
+            XX(MKCOL,     2, 'A', MKACTIVITY)
+            XX(MKCOL,     3, 'A', MKCALENDAR)
+            XX(SUBSCRIBE, 1, 'E', SEARCH)
+            XX(REPORT,    2, 'B', REBIND)
+            XX(POST,      1, 'R', PROPFIND)
+            XX(PROPFIND,  4, 'P', PROPPATCH)
+            XX(PUT,       2, 'R', PURGE)
+            XX(LOCK,      1, 'I', LINK)
+            XX(UNLOCK,    2, 'S', UNSUBSCRIBE)
+            XX(UNLOCK,    2, 'B', UNBIND)
+            XX(UNLOCK,    3, 'I', UNLINK)
+#undef XX
+
+            default:
+              SET_ERRNO(HPE_INVALID_METHOD);
+              goto error;
+          }
+        } else if (ch == '-' &&
+                   parser->index == 1 &&
+                   parser->method == HTTP_MKCOL) {
+          parser->method = HTTP_MSEARCH;
+        } else {
+          SET_ERRNO(HPE_INVALID_METHOD);
+          goto error;
+        }
+
+        ++parser->index;
+        break;
+      }
+
+      case s_req_spaces_before_url:
+      {
+        if (ch == ' ') break;
+
+        MARK(url);
+        if (parser->method == HTTP_CONNECT) {
+          UPDATE_STATE(s_req_server_start);
+        }
+
+        UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
+        if (UNLIKELY(CURRENT_STATE() == s_dead)) {
+          SET_ERRNO(HPE_INVALID_URL);
+          goto error;
+        }
+
+        break;
+      }
+
+      case s_req_schema:
+      case s_req_schema_slash:
+      case s_req_schema_slash_slash:
+      case s_req_server_start:
+      {
+        switch (ch) {
+          /* No whitespace allowed here */
+          case ' ':
+          case CR:
+          case LF:
+            SET_ERRNO(HPE_INVALID_URL);
+            goto error;
+          default:
+            UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
+            if (UNLIKELY(CURRENT_STATE() == s_dead)) {
+              SET_ERRNO(HPE_INVALID_URL);
+              goto error;
+            }
+        }
+
+        break;
+      }
+
+      case s_req_server:
+      case s_req_server_with_at:
+      case s_req_path:
+      case s_req_query_string_start:
+      case s_req_query_string:
+      case s_req_fragment_start:
+      case s_req_fragment:
+      {
+        switch (ch) {
+          case ' ':
+            UPDATE_STATE(s_req_http_start);
+            CALLBACK_DATA(url);
+            break;
+          case CR:
+          case LF:
+            parser->http_major = 0;
+            parser->http_minor = 9;
+            UPDATE_STATE((ch == CR) ?
+              s_req_line_almost_done :
+              s_header_field_start);
+            CALLBACK_DATA(url);
+            break;
+          default:
+            UPDATE_STATE(parse_url_char(CURRENT_STATE(), ch));
+            if (UNLIKELY(CURRENT_STATE() == s_dead)) {
+              SET_ERRNO(HPE_INVALID_URL);
+              goto error;
+            }
+        }
+        break;
+      }
+
+      case s_req_http_start:
+        switch (ch) {
+          case 'H':
+            UPDATE_STATE(s_req_http_H);
+            break;
+          case ' ':
+            break;
+          default:
+            SET_ERRNO(HPE_INVALID_CONSTANT);
+            goto error;
+        }
+        break;
+
+      case s_req_http_H:
+        STRICT_CHECK(ch != 'T');
+        UPDATE_STATE(s_req_http_HT);
+        break;
+
+      case s_req_http_HT:
+        STRICT_CHECK(ch != 'T');
+        UPDATE_STATE(s_req_http_HTT);
+        break;
+
+      case s_req_http_HTT:
+        STRICT_CHECK(ch != 'P');
+        UPDATE_STATE(s_req_http_HTTP);
+        break;
+
+      case s_req_http_HTTP:
+        STRICT_CHECK(ch != '/');
+        UPDATE_STATE(s_req_first_http_major);
+        break;
+
+      /* first digit of major HTTP version */
+      case s_req_first_http_major:
+        if (UNLIKELY(ch < '1' || ch > '9')) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_major = ch - '0';
+        UPDATE_STATE(s_req_http_major);
+        break;
+
+      /* major HTTP version or dot */
+      case s_req_http_major:
+      {
+        if (ch == '.') {
+          UPDATE_STATE(s_req_first_http_minor);
+          break;
+        }
+
+        if (UNLIKELY(!IS_NUM(ch))) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_major *= 10;
+        parser->http_major += ch - '0';
+
+        if (UNLIKELY(parser->http_major > 999)) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        break;
+      }
+
+      /* first digit of minor HTTP version */
+      case s_req_first_http_minor:
+        if (UNLIKELY(!IS_NUM(ch))) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_minor = ch - '0';
+        UPDATE_STATE(s_req_http_minor);
+        break;
+
+      /* minor HTTP version or end of request line */
+      case s_req_http_minor:
+      {
+        if (ch == CR) {
+          UPDATE_STATE(s_req_line_almost_done);
+          break;
+        }
+
+        if (ch == LF) {
+          UPDATE_STATE(s_header_field_start);
+          break;
+        }
+
+        /* XXX allow spaces after digit? */
+
+        if (UNLIKELY(!IS_NUM(ch))) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        parser->http_minor *= 10;
+        parser->http_minor += ch - '0';
+
+        if (UNLIKELY(parser->http_minor > 999)) {
+          SET_ERRNO(HPE_INVALID_VERSION);
+          goto error;
+        }
+
+        break;
+      }
+
+      /* end of request line */
+      case s_req_line_almost_done:
+      {
+        if (UNLIKELY(ch != LF)) {
+          SET_ERRNO(HPE_LF_EXPECTED);
+          goto error;
+        }
+
+        UPDATE_STATE(s_header_field_start);
+        break;
+      }
+
+      case s_header_field_start:
+      {
+        if (ch == CR) {
+          UPDATE_STATE(s_headers_almost_done);
+          break;
+        }
+
+        if (ch == LF) {
+          /* they might be just sending \n instead of \r\n so this would be
+           * the second \n to denote the end of headers*/
+          UPDATE_STATE(s_headers_almost_done);
+          REEXECUTE();
+        }
+
+        c = TOKEN(ch);
+
+        if (UNLIKELY(!c)) {
+          SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+          goto error;
+        }
+
+        MARK(header_field);
+
+        parser->index = 0;
+        UPDATE_STATE(s_header_field);
+
+        switch (c) {
+          case 'c':
+            parser->header_state = h_C;
+            break;
+
+          case 'p':
+            parser->header_state = h_matching_proxy_connection;
+            break;
+
+          case 't':
+            parser->header_state = h_matching_transfer_encoding;
+            break;
+
+          case 'u':
+            parser->header_state = h_matching_upgrade;
+            break;
+
+          default:
+            parser->header_state = h_general;
+            break;
+        }
+        break;
+      }
+
+      case s_header_field:
+      {
+        const char* start = p;
+        for (; p != data + len; p++) {
+          ch = *p;
+          c = TOKEN(ch);
+
+          if (!c)
+            break;
+
+          switch (parser->header_state) {
+            case h_general:
+              break;
+
+            case h_C:
+              parser->index++;
+              parser->header_state = (c == 'o' ? h_CO : h_general);
+              break;
+
+            case h_CO:
+              parser->index++;
+              parser->header_state = (c == 'n' ? h_CON : h_general);
+              break;
+
+            case h_CON:
+              parser->index++;
+              switch (c) {
+                case 'n':
+                  parser->header_state = h_matching_connection;
+                  break;
+                case 't':
+                  parser->header_state = h_matching_content_length;
+                  break;
+                default:
+                  parser->header_state = h_general;
+                  break;
+              }
+              break;
+
+            /* connection */
+
+            case h_matching_connection:
+              parser->index++;
+              if (parser->index > sizeof(CONNECTION)-1
+                  || c != CONNECTION[parser->index]) {
+                parser->header_state = h_general;
+              } else if (parser->index == sizeof(CONNECTION)-2) {
+                parser->header_state = h_connection;
+              }
+              break;
+
+            /* proxy-connection */
+
+            case h_matching_proxy_connection:
+              parser->index++;
+              if (parser->index > sizeof(PROXY_CONNECTION)-1
+                  || c != PROXY_CONNECTION[parser->index]) {
+                parser->header_state = h_general;
+              } else if (parser->index == sizeof(PROXY_CONNECTION)-2) {
+                parser->header_state = h_connection;
+              }
+              break;
+
+            /* content-length */
+
+            case h_matching_content_length:
+              parser->index++;
+              if (parser->index > sizeof(CONTENT_LENGTH)-1
+                  || c != CONTENT_LENGTH[parser->index]) {
+                parser->header_state = h_general;
+              } else if (parser->index == sizeof(CONTENT_LENGTH)-2) {
+                if (parser->flags & F_CONTENTLENGTH) {
+                  SET_ERRNO(HPE_UNEXPECTED_CONTENT_LENGTH);
+                  goto error;
+                }
+                parser->header_state = h_content_length;
+                parser->flags |= F_CONTENTLENGTH;
+              }
+              break;
+
+            /* transfer-encoding */
+
+            case h_matching_transfer_encoding:
+              parser->index++;
+              if (parser->index > sizeof(TRANSFER_ENCODING)-1
+                  || c != TRANSFER_ENCODING[parser->index]) {
+                parser->header_state = h_general;
+              } else if (parser->index == sizeof(TRANSFER_ENCODING)-2) {
+                parser->header_state = h_transfer_encoding;
+              }
+              break;
+
+            /* upgrade */
+
+            case h_matching_upgrade:
+              parser->index++;
+              if (parser->index > sizeof(UPGRADE)-1
+                  || c != UPGRADE[parser->index]) {
+                parser->header_state = h_general;
+              } else if (parser->index == sizeof(UPGRADE)-2) {
+                parser->header_state = h_upgrade;
+              }
+              break;
+
+            case h_connection:
+            case h_content_length:
+            case h_transfer_encoding:
+            case h_upgrade:
+              if (ch != ' ') parser->header_state = h_general;
+              break;
+
+            default:
+              assert(0 && "Unknown header_state");
+              break;
+          }
+        }
+
+        COUNT_HEADER_SIZE(p - start);
+
+        if (p == data + len) {
+          --p;
+          break;
+        }
+
+        if (ch == ':') {
+          UPDATE_STATE(s_header_value_discard_ws);
+          CALLBACK_DATA(header_field);
+          break;
+        }
+
+        SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+        goto error;
+      }
+
+      case s_header_value_discard_ws:
+        if (ch == ' ' || ch == '\t') break;
+
+        if (ch == CR) {
+          UPDATE_STATE(s_header_value_discard_ws_almost_done);
+          break;
+        }
+
+        if (ch == LF) {
+          UPDATE_STATE(s_header_value_discard_lws);
+          break;
+        }
+
+        /* FALLTHROUGH */
+
+      case s_header_value_start:
+      {
+        MARK(header_value);
+
+        UPDATE_STATE(s_header_value);
+        parser->index = 0;
+
+        c = LOWER(ch);
+
+        switch (parser->header_state) {
+          case h_upgrade:
+            parser->flags |= F_UPGRADE;
+            parser->header_state = h_general;
+            break;
+
+          case h_transfer_encoding:
+            /* looking for 'Transfer-Encoding: chunked' */
+            if ('c' == c) {
+              parser->header_state = h_matching_transfer_encoding_chunked;
+            } else {
+              parser->header_state = h_general;
+            }
+            break;
+
+          case h_content_length:
+            if (UNLIKELY(!IS_NUM(ch))) {
+              SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+              goto error;
+            }
+
+            parser->content_length = ch - '0';
+            break;
+
+          case h_connection:
+            /* looking for 'Connection: keep-alive' */
+            if (c == 'k') {
+              parser->header_state = h_matching_connection_keep_alive;
+            /* looking for 'Connection: close' */
+            } else if (c == 'c') {
+              parser->header_state = h_matching_connection_close;
+            } else if (c == 'u') {
+              parser->header_state = h_matching_connection_upgrade;
+            } else {
+              parser->header_state = h_matching_connection_token;
+            }
+            break;
+
+          /* Multi-value `Connection` header */
+          case h_matching_connection_token_start:
+            break;
+
+          default:
+            parser->header_state = h_general;
+            break;
+        }
+        break;
+      }
+
+      case s_header_value:
+      {
+        const char* start = p;
+        enum header_states h_state = (enum header_states) parser->header_state;
+        for (; p != data + len; p++) {
+          ch = *p;
+          if (ch == CR) {
+            UPDATE_STATE(s_header_almost_done);
+            parser->header_state = h_state;
+            CALLBACK_DATA(header_value);
+            break;
+          }
+
+          if (ch == LF) {
+            UPDATE_STATE(s_header_almost_done);
+            COUNT_HEADER_SIZE(p - start);
+            parser->header_state = h_state;
+            CALLBACK_DATA_NOADVANCE(header_value);
+            REEXECUTE();
+          }
+
+          if (!lenient && !IS_HEADER_CHAR(ch)) {
+            SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+            goto error;
+          }
+
+          c = LOWER(ch);
+
+          switch (h_state) {
+            case h_general:
+            {
+              const char* p_cr;
+              const char* p_lf;
+              size_t limit = data + len - p;
+
+              limit = MIN(limit, HTTP_MAX_HEADER_SIZE);
+
+              p_cr = (const char*) memchr(p, CR, limit);
+              p_lf = (const char*) memchr(p, LF, limit);
+              if (p_cr != NULL) {
+                if (p_lf != NULL && p_cr >= p_lf)
+                  p = p_lf;
+                else
+                  p = p_cr;
+              } else if (UNLIKELY(p_lf != NULL)) {
+                p = p_lf;
+              } else {
+                p = data + len;
+              }
+              --p;
+
+              break;
+            }
+
+            case h_connection:
+            case h_transfer_encoding:
+              assert(0 && "Shouldn't get here.");
+              break;
+
+            case h_content_length:
+            {
+              uint64_t t;
+
+              if (ch == ' ') break;
+
+              if (UNLIKELY(!IS_NUM(ch))) {
+                SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+                parser->header_state = h_state;
+                goto error;
+              }
+
+              t = parser->content_length;
+              t *= 10;
+              t += ch - '0';
+
+              /* Overflow? Test against a conservative limit for simplicity. */
+              if (UNLIKELY((ULLONG_MAX - 10) / 10 < parser->content_length)) {
+                SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+                parser->header_state = h_state;
+                goto error;
+              }
+
+              parser->content_length = t;
+              break;
+            }
+
+            /* Transfer-Encoding: chunked */
+            case h_matching_transfer_encoding_chunked:
+              parser->index++;
+              if (parser->index > sizeof(CHUNKED)-1
+                  || c != CHUNKED[parser->index]) {
+                h_state = h_general;
+              } else if (parser->index == sizeof(CHUNKED)-2) {
+                h_state = h_transfer_encoding_chunked;
+              }
+              break;
+
+            case h_matching_connection_token_start:
+              /* looking for 'Connection: keep-alive' */
+              if (c == 'k') {
+                h_state = h_matching_connection_keep_alive;
+              /* looking for 'Connection: close' */
+              } else if (c == 'c') {
+                h_state = h_matching_connection_close;
+              } else if (c == 'u') {
+                h_state = h_matching_connection_upgrade;
+              } else if (STRICT_TOKEN(c)) {
+                h_state = h_matching_connection_token;
+              } else if (c == ' ' || c == '\t') {
+                /* Skip lws */
+              } else {
+                h_state = h_general;
+              }
+              break;
+
+            /* looking for 'Connection: keep-alive' */
+            case h_matching_connection_keep_alive:
+              parser->index++;
+              if (parser->index > sizeof(KEEP_ALIVE)-1
+                  || c != KEEP_ALIVE[parser->index]) {
+                h_state = h_matching_connection_token;
+              } else if (parser->index == sizeof(KEEP_ALIVE)-2) {
+                h_state = h_connection_keep_alive;
+              }
+              break;
+
+            /* looking for 'Connection: close' */
+            case h_matching_connection_close:
+              parser->index++;
+              if (parser->index > sizeof(CLOSE)-1 || c != CLOSE[parser->index]) {
+                h_state = h_matching_connection_token;
+              } else if (parser->index == sizeof(CLOSE)-2) {
+                h_state = h_connection_close;
+              }
+              break;
+
+            /* looking for 'Connection: upgrade' */
+            case h_matching_connection_upgrade:
+              parser->index++;
+              if (parser->index > sizeof(UPGRADE) - 1 ||
+                  c != UPGRADE[parser->index]) {
+                h_state = h_matching_connection_token;
+              } else if (parser->index == sizeof(UPGRADE)-2) {
+                h_state = h_connection_upgrade;
+              }
+              break;
+
+            case h_matching_connection_token:
+              if (ch == ',') {
+                h_state = h_matching_connection_token_start;
+                parser->index = 0;
+              }
+              break;
+
+            case h_transfer_encoding_chunked:
+              if (ch != ' ') h_state = h_general;
+              break;
+
+            case h_connection_keep_alive:
+            case h_connection_close:
+            case h_connection_upgrade:
+              if (ch == ',') {
+                if (h_state == h_connection_keep_alive) {
+                  parser->flags |= F_CONNECTION_KEEP_ALIVE;
+                } else if (h_state == h_connection_close) {
+                  parser->flags |= F_CONNECTION_CLOSE;
+                } else if (h_state == h_connection_upgrade) {
+                  parser->flags |= F_CONNECTION_UPGRADE;
+                }
+                h_state = h_matching_connection_token_start;
+                parser->index = 0;
+              } else if (ch != ' ') {
+                h_state = h_matching_connection_token;
+              }
+              break;
+
+            default:
+              UPDATE_STATE(s_header_value);
+              h_state = h_general;
+              break;
+          }
+        }
+        parser->header_state = h_state;
+
+        COUNT_HEADER_SIZE(p - start);
+
+        if (p == data + len)
+          --p;
+        break;
+      }
+
+      case s_header_almost_done:
+      {
+        if (UNLIKELY(ch != LF)) {
+          SET_ERRNO(HPE_LF_EXPECTED);
+          goto error;
+        }
+
+        UPDATE_STATE(s_header_value_lws);
+        break;
+      }
+
+      case s_header_value_lws:
+      {
+        if (ch == ' ' || ch == '\t') {
+          UPDATE_STATE(s_header_value_start);
+          REEXECUTE();
+        }
+
+        /* finished the header */
+        switch (parser->header_state) {
+          case h_connection_keep_alive:
+            parser->flags |= F_CONNECTION_KEEP_ALIVE;
+            break;
+          case h_connection_close:
+            parser->flags |= F_CONNECTION_CLOSE;
+            break;
+          case h_transfer_encoding_chunked:
+            parser->flags |= F_CHUNKED;
+            break;
+          case h_connection_upgrade:
+            parser->flags |= F_CONNECTION_UPGRADE;
+            break;
+          default:
+            break;
+        }
+
+        UPDATE_STATE(s_header_field_start);
+        REEXECUTE();
+      }
+
+      case s_header_value_discard_ws_almost_done:
+      {
+        STRICT_CHECK(ch != LF);
+        UPDATE_STATE(s_header_value_discard_lws);
+        break;
+      }
+
+      case s_header_value_discard_lws:
+      {
+        if (ch == ' ' || ch == '\t') {
+          UPDATE_STATE(s_header_value_discard_ws);
+          break;
+        } else {
+          switch (parser->header_state) {
+            case h_connection_keep_alive:
+              parser->flags |= F_CONNECTION_KEEP_ALIVE;
+              break;
+            case h_connection_close:
+              parser->flags |= F_CONNECTION_CLOSE;
+              break;
+            case h_connection_upgrade:
+              parser->flags |= F_CONNECTION_UPGRADE;
+              break;
+            case h_transfer_encoding_chunked:
+              parser->flags |= F_CHUNKED;
+              break;
+            default:
+              break;
+          }
+
+          /* header value was empty */
+          MARK(header_value);
+          UPDATE_STATE(s_header_field_start);
+          CALLBACK_DATA_NOADVANCE(header_value);
+          REEXECUTE();
+        }
+      }
+
+      case s_headers_almost_done:
+      {
+        STRICT_CHECK(ch != LF);
+
+        if (parser->flags & F_TRAILING) {
+          /* End of a chunked request */
+          UPDATE_STATE(s_message_done);
+          CALLBACK_NOTIFY_NOADVANCE(chunk_complete);
+          REEXECUTE();
+        }
+
+        /* Cannot use chunked encoding and a content-length header together
+           per the HTTP specification. */
+        if ((parser->flags & F_CHUNKED) &&
+            (parser->flags & F_CONTENTLENGTH)) {
+          SET_ERRNO(HPE_UNEXPECTED_CONTENT_LENGTH);
+          goto error;
+        }
+
+        UPDATE_STATE(s_headers_done);
+
+        /* Set this here so that on_headers_complete() callbacks can see it */
+        parser->upgrade =
+          ((parser->flags & (F_UPGRADE | F_CONNECTION_UPGRADE)) ==
+           (F_UPGRADE | F_CONNECTION_UPGRADE) ||
+           parser->method == HTTP_CONNECT);
+
+        /* Here we call the headers_complete callback. This is somewhat
+         * different than other callbacks because if the user returns 1, we
+         * will interpret that as saying that this message has no body. This
+         * is needed for the annoying case of recieving a response to a HEAD
+         * request.
+         *
+         * We'd like to use CALLBACK_NOTIFY_NOADVANCE() here but we cannot, so
+         * we have to simulate it by handling a change in errno below.
+         */
+        if (settings->on_headers_complete) {
+          switch (settings->on_headers_complete(parser)) {
+            case 0:
+              break;
+
+            case 2:
+              parser->upgrade = 1;
+
+            case 1:
+              parser->flags |= F_SKIPBODY;
+              break;
+
+            default:
+              SET_ERRNO(HPE_CB_headers_complete);
+              RETURN(p - data); /* Error */
+          }
+        }
+
+        if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
+          RETURN(p - data);
+        }
+
+        REEXECUTE();
+      }
+
+      case s_headers_done:
+      {
+        int hasBody;
+        STRICT_CHECK(ch != LF);
+
+        parser->nread = 0;
+
+        hasBody = parser->flags & F_CHUNKED ||
+          (parser->content_length > 0 && parser->content_length != ULLONG_MAX);
+        if (parser->upgrade && (parser->method == HTTP_CONNECT ||
+                                (parser->flags & F_SKIPBODY) || !hasBody)) {
+          /* Exit, the rest of the message is in a different protocol. */
+          UPDATE_STATE(NEW_MESSAGE());
+          CALLBACK_NOTIFY(message_complete);
+          RETURN((p - data) + 1);
+        }
+
+        if (parser->flags & F_SKIPBODY) {
+          UPDATE_STATE(NEW_MESSAGE());
+          CALLBACK_NOTIFY(message_complete);
+        } else if (parser->flags & F_CHUNKED) {
+          /* chunked encoding - ignore Content-Length header */
+          UPDATE_STATE(s_chunk_size_start);
+        } else {
+          if (parser->content_length == 0) {
+            /* Content-Length header given but zero: Content-Length: 0\r\n */
+            UPDATE_STATE(NEW_MESSAGE());
+            CALLBACK_NOTIFY(message_complete);
+          } else if (parser->content_length != ULLONG_MAX) {
+            /* Content-Length header given and non-zero */
+            UPDATE_STATE(s_body_identity);
+          } else {
+            if (!http_message_needs_eof(parser)) {
+              /* Assume content-length 0 - read the next */
+              UPDATE_STATE(NEW_MESSAGE());
+              CALLBACK_NOTIFY(message_complete);
+            } else {
+              /* Read body until EOF */
+              UPDATE_STATE(s_body_identity_eof);
+            }
+          }
+        }
+
+        break;
+      }
+
+      case s_body_identity:
+      {
+        uint64_t to_read = MIN(parser->content_length,
+                               (uint64_t) ((data + len) - p));
+
+        assert(parser->content_length != 0
+            && parser->content_length != ULLONG_MAX);
+
+        /* The difference between advancing content_length and p is because
+         * the latter will automaticaly advance on the next loop iteration.
+         * Further, if content_length ends up at 0, we want to see the last
+         * byte again for our message complete callback.
+         */
+        MARK(body);
+        parser->content_length -= to_read;
+        p += to_read - 1;
+
+        if (parser->content_length == 0) {
+          UPDATE_STATE(s_message_done);
+
+          /* Mimic CALLBACK_DATA_NOADVANCE() but with one extra byte.
+           *
+           * The alternative to doing this is to wait for the next byte to
+           * trigger the data callback, just as in every other case. The
+           * problem with this is that this makes it difficult for the test
+           * harness to distinguish between complete-on-EOF and
+           * complete-on-length. It's not clear that this distinction is
+           * important for applications, but let's keep it for now.
+           */
+          CALLBACK_DATA_(body, p - body_mark + 1, p - data);
+          REEXECUTE();
+        }
+
+        break;
+      }
+
+      /* read until EOF */
+      case s_body_identity_eof:
+        MARK(body);
+        p = data + len - 1;
+
+        break;
+
+      case s_message_done:
+        UPDATE_STATE(NEW_MESSAGE());
+        CALLBACK_NOTIFY(message_complete);
+        if (parser->upgrade) {
+          /* Exit, the rest of the message is in a different protocol. */
+          RETURN((p - data) + 1);
+        }
+        break;
+
+      case s_chunk_size_start:
+      {
+        assert(parser->nread == 1);
+        assert(parser->flags & F_CHUNKED);
+
+        unhex_val = unhex[(unsigned char)ch];
+        if (UNLIKELY(unhex_val == -1)) {
+          SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
+          goto error;
+        }
+
+        parser->content_length = unhex_val;
+        UPDATE_STATE(s_chunk_size);
+        break;
+      }
+
+      case s_chunk_size:
+      {
+        uint64_t t;
+
+        assert(parser->flags & F_CHUNKED);
+
+        if (ch == CR) {
+          UPDATE_STATE(s_chunk_size_almost_done);
+          break;
+        }
+
+        unhex_val = unhex[(unsigned char)ch];
+
+        if (unhex_val == -1) {
+          if (ch == ';' || ch == ' ') {
+            UPDATE_STATE(s_chunk_parameters);
+            break;
+          }
+
+          SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
+          goto error;
+        }
+
+        t = parser->content_length;
+        t *= 16;
+        t += unhex_val;
+
+        /* Overflow? Test against a conservative limit for simplicity. */
+        if (UNLIKELY((ULLONG_MAX - 16) / 16 < parser->content_length)) {
+          SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+          goto error;
+        }
+
+        parser->content_length = t;
+        break;
+      }
+
+      case s_chunk_parameters:
+      {
+        assert(parser->flags & F_CHUNKED);
+        /* just ignore this shit. TODO check for overflow */
+        if (ch == CR) {
+          UPDATE_STATE(s_chunk_size_almost_done);
+          break;
+        }
+        break;
+      }
+
+      case s_chunk_size_almost_done:
+      {
+        assert(parser->flags & F_CHUNKED);
+        STRICT_CHECK(ch != LF);
+
+        parser->nread = 0;
+
+        if (parser->content_length == 0) {
+          parser->flags |= F_TRAILING;
+          UPDATE_STATE(s_header_field_start);
+        } else {
+          UPDATE_STATE(s_chunk_data);
+        }
+        CALLBACK_NOTIFY(chunk_header);
+        break;
+      }
+
+      case s_chunk_data:
+      {
+        uint64_t to_read = MIN(parser->content_length,
+                               (uint64_t) ((data + len) - p));
+
+        assert(parser->flags & F_CHUNKED);
+        assert(parser->content_length != 0
+            && parser->content_length != ULLONG_MAX);
+
+        /* See the explanation in s_body_identity for why the content
+         * length and data pointers are managed this way.
+         */
+        MARK(body);
+        parser->content_length -= to_read;
+        p += to_read - 1;
+
+        if (parser->content_length == 0) {
+          UPDATE_STATE(s_chunk_data_almost_done);
+        }
+
+        break;
+      }
+
+      case s_chunk_data_almost_done:
+        assert(parser->flags & F_CHUNKED);
+        assert(parser->content_length == 0);
+        STRICT_CHECK(ch != CR);
+        UPDATE_STATE(s_chunk_data_done);
+        CALLBACK_DATA(body);
+        break;
+
+      case s_chunk_data_done:
+        assert(parser->flags & F_CHUNKED);
+        STRICT_CHECK(ch != LF);
+        parser->nread = 0;
+        UPDATE_STATE(s_chunk_size_start);
+        CALLBACK_NOTIFY(chunk_complete);
+        break;
+
+      default:
+        assert(0 && "unhandled state");
+        SET_ERRNO(HPE_INVALID_INTERNAL_STATE);
+        goto error;
+    }
+  }
+
+  /* Run callbacks for any marks that we have leftover after we ran our of
+   * bytes. There should be at most one of these set, so it's OK to invoke
+   * them in series (unset marks will not result in callbacks).
+   *
+   * We use the NOADVANCE() variety of callbacks here because 'p' has already
+   * overflowed 'data' and this allows us to correct for the off-by-one that
+   * we'd otherwise have (since CALLBACK_DATA() is meant to be run with a 'p'
+   * value that's in-bounds).
+   */
+
+  assert(((header_field_mark ? 1 : 0) +
+          (header_value_mark ? 1 : 0) +
+          (url_mark ? 1 : 0)  +
+          (body_mark ? 1 : 0) +
+          (status_mark ? 1 : 0)) <= 1);
+
+  CALLBACK_DATA_NOADVANCE(header_field);
+  CALLBACK_DATA_NOADVANCE(header_value);
+  CALLBACK_DATA_NOADVANCE(url);
+  CALLBACK_DATA_NOADVANCE(body);
+  CALLBACK_DATA_NOADVANCE(status);
+
+  RETURN(len);
+
+error:
+  if (HTTP_PARSER_ERRNO(parser) == HPE_OK) {
+    SET_ERRNO(HPE_UNKNOWN);
+  }
+
+  RETURN(p - data);
+}
+
+
+/* Does the parser need to see an EOF to find the end of the message? */
+int
+http_message_needs_eof (const http_parser *parser)
+{
+  if (parser->type == HTTP_REQUEST) {
+    return 0;
+  }
+
+  /* See RFC 2616 section 4.4 */
+  if (parser->status_code / 100 == 1 || /* 1xx e.g. Continue */
+      parser->status_code == 204 ||     /* No Content */
+      parser->status_code == 304 ||     /* Not Modified */
+      parser->flags & F_SKIPBODY) {     /* response to a HEAD request */
+    return 0;
+  }
+
+  if ((parser->flags & F_CHUNKED) || parser->content_length != ULLONG_MAX) {
+    return 0;
+  }
+
+  return 1;
+}
+
+
+int
+http_should_keep_alive (const http_parser *parser)
+{
+  if (parser->http_major > 0 && parser->http_minor > 0) {
+    /* HTTP/1.1 */
+    if (parser->flags & F_CONNECTION_CLOSE) {
+      return 0;
+    }
+  } else {
+    /* HTTP/1.0 or earlier */
+    if (!(parser->flags & F_CONNECTION_KEEP_ALIVE)) {
+      return 0;
+    }
+  }
+
+  return !http_message_needs_eof(parser);
+}
+
+
+const char *
+http_method_str (enum http_method m)
+{
+  return ELEM_AT(method_strings, m, "<unknown>");
+}
+
+
+void
+http_parser_init (http_parser *parser, enum http_parser_type t)
+{
+  void *data = parser->data; /* preserve application data */
+  memset(parser, 0, sizeof(*parser));
+  parser->data = data;
+  parser->type = t;
+  parser->state = (t == HTTP_REQUEST ? s_start_req : (t == HTTP_RESPONSE ? s_start_res : s_start_req_or_res));
+  parser->http_errno = HPE_OK;
+}
+
+void
+http_parser_settings_init(http_parser_settings *settings)
+{
+  memset(settings, 0, sizeof(*settings));
+}
+
+const char *
+http_errno_name(enum http_errno err) {
+  assert(((size_t) err) < ARRAY_SIZE(http_strerror_tab));
+  return http_strerror_tab[err].name;
+}
+
+const char *
+http_errno_description(enum http_errno err) {
+  assert(((size_t) err) < ARRAY_SIZE(http_strerror_tab));
+  return http_strerror_tab[err].description;
+}
+
+static enum http_host_state
+http_parse_host_char(enum http_host_state s, const char ch) {
+  switch(s) {
+    case s_http_userinfo:
+    case s_http_userinfo_start:
+      if (ch == '@') {
+        return s_http_host_start;
+      }
+
+      if (IS_USERINFO_CHAR(ch)) {
+        return s_http_userinfo;
+      }
+      break;
+
+    case s_http_host_start:
+      if (ch == '[') {
+        return s_http_host_v6_start;
+      }
+
+      if (IS_HOST_CHAR(ch)) {
+        return s_http_host;
+      }
+
+      break;
+
+    case s_http_host:
+      if (IS_HOST_CHAR(ch)) {
+        return s_http_host;
+      }
+
+    /* FALLTHROUGH */
+    case s_http_host_v6_end:
+      if (ch == ':') {
+        return s_http_host_port_start;
+      }
+
+      break;
+
+    case s_http_host_v6:
+      if (ch == ']') {
+        return s_http_host_v6_end;
+      }
+
+    /* FALLTHROUGH */
+    case s_http_host_v6_start:
+      if (IS_HEX(ch) || ch == ':' || ch == '.') {
+        return s_http_host_v6;
+      }
+
+      if (s == s_http_host_v6 && ch == '%') {
+        return s_http_host_v6_zone_start;
+      }
+      break;
+
+    case s_http_host_v6_zone:
+      if (ch == ']') {
+        return s_http_host_v6_end;
+      }
+
+    /* FALLTHROUGH */
+    case s_http_host_v6_zone_start:
+      /* RFC 6874 Zone ID consists of 1*( unreserved / pct-encoded) */
+      if (IS_ALPHANUM(ch) || ch == '%' || ch == '.' || ch == '-' || ch == '_' ||
+          ch == '~') {
+        return s_http_host_v6_zone;
+      }
+      break;
+
+    case s_http_host_port:
+    case s_http_host_port_start:
+      if (IS_NUM(ch)) {
+        return s_http_host_port;
+      }
+
+      break;
+
+    default:
+      break;
+  }
+  return s_http_host_dead;
+}
+
+static int
+http_parse_host(const char * buf, struct http_parser_url *u, int found_at) {
+  assert(u->field_set & (1 << UF_HOST));
+  enum http_host_state s;
+
+  const char *p;
+  size_t buflen = u->field_data[UF_HOST].off + u->field_data[UF_HOST].len;
+
+  u->field_data[UF_HOST].len = 0;
+
+  s = found_at ? s_http_userinfo_start : s_http_host_start;
+
+  for (p = buf + u->field_data[UF_HOST].off; p < buf + buflen; p++) {
+    enum http_host_state new_s = http_parse_host_char(s, *p);
+
+    if (new_s == s_http_host_dead) {
+      return 1;
+    }
+
+    switch(new_s) {
+      case s_http_host:
+        if (s != s_http_host) {
+          u->field_data[UF_HOST].off = p - buf;
+        }
+        u->field_data[UF_HOST].len++;
+        break;
+
+      case s_http_host_v6:
+        if (s != s_http_host_v6) {
+          u->field_data[UF_HOST].off = p - buf;
+        }
+        u->field_data[UF_HOST].len++;
+        break;
+
+      case s_http_host_v6_zone_start:
+      case s_http_host_v6_zone:
+        u->field_data[UF_HOST].len++;
+        break;
+
+      case s_http_host_port:
+        if (s != s_http_host_port) {
+          u->field_data[UF_PORT].off = p - buf;
+          u->field_data[UF_PORT].len = 0;
+          u->field_set |= (1 << UF_PORT);
+        }
+        u->field_data[UF_PORT].len++;
+        break;
+
+      case s_http_userinfo:
+        if (s != s_http_userinfo) {
+          u->field_data[UF_USERINFO].off = p - buf ;
+          u->field_data[UF_USERINFO].len = 0;
+          u->field_set |= (1 << UF_USERINFO);
+        }
+        u->field_data[UF_USERINFO].len++;
+        break;
+
+      default:
+        break;
+    }
+    s = new_s;
+  }
+
+  /* Make sure we don't end somewhere unexpected */
+  switch (s) {
+    case s_http_host_start:
+    case s_http_host_v6_start:
+    case s_http_host_v6:
+    case s_http_host_v6_zone_start:
+    case s_http_host_v6_zone:
+    case s_http_host_port_start:
+    case s_http_userinfo:
+    case s_http_userinfo_start:
+      return 1;
+    default:
+      break;
+  }
+
+  return 0;
+}
+
+void
+http_parser_url_init(struct http_parser_url *u) {
+  memset(u, 0, sizeof(*u));
+}
+
+int
+http_parser_parse_url(const char *buf, size_t buflen, int is_connect,
+                      struct http_parser_url *u)
+{
+  enum state s;
+  const char *p;
+  enum http_parser_url_fields uf, old_uf;
+  int found_at = 0;
+
+  u->port = u->field_set = 0;
+  s = is_connect ? s_req_server_start : s_req_spaces_before_url;
+  old_uf = UF_MAX;
+
+  for (p = buf; p < buf + buflen; p++) {
+    s = parse_url_char(s, *p);
+
+    /* Figure out the next field that we're operating on */
+    switch (s) {
+      case s_dead:
+        return 1;
+
+      /* Skip delimeters */
+      case s_req_schema_slash:
+      case s_req_schema_slash_slash:
+      case s_req_server_start:
+      case s_req_query_string_start:
+      case s_req_fragment_start:
+        continue;
+
+      case s_req_schema:
+        uf = UF_SCHEMA;
+        break;
+
+      case s_req_server_with_at:
+        found_at = 1;
+
+      /* FALLTROUGH */
+      case s_req_server:
+        uf = UF_HOST;
+        break;
+
+      case s_req_path:
+        uf = UF_PATH;
+        break;
+
+      case s_req_query_string:
+        uf = UF_QUERY;
+        break;
+
+      case s_req_fragment:
+        uf = UF_FRAGMENT;
+        break;
+
+      default:
+        assert(!"Unexpected state");
+        return 1;
+    }
+
+    /* Nothing's changed; soldier on */
+    if (uf == old_uf) {
+      u->field_data[uf].len++;
+      continue;
+    }
+
+    u->field_data[uf].off = p - buf;
+    u->field_data[uf].len = 1;
+
+    u->field_set |= (1 << uf);
+    old_uf = uf;
+  }
+
+  /* host must be present if there is a schema */
+  /* parsing http:///toto will fail */
+  if ((u->field_set & (1 << UF_SCHEMA)) &&
+      (u->field_set & (1 << UF_HOST)) == 0) {
+    return 1;
+  }
+
+  if (u->field_set & (1 << UF_HOST)) {
+    if (http_parse_host(buf, u, found_at) != 0) {
+      return 1;
+    }
+  }
+
+  /* CONNECT requests can only contain "hostname:port" */
+  if (is_connect && u->field_set != ((1 << UF_HOST)|(1 << UF_PORT))) {
+    return 1;
+  }
+
+  if (u->field_set & (1 << UF_PORT)) {
+    /* Don't bother with endp; we've already validated the string */
+    unsigned long v = strtoul(buf + u->field_data[UF_PORT].off, NULL, 10);
+
+    /* Ports have a max value of 2^16 */
+    if (v > 0xffff) {
+      return 1;
+    }
+
+    u->port = (uint16_t) v;
+  }
+
+  return 0;
+}
+
+void
+http_parser_pause(http_parser *parser, int paused) {
+  /* Users should only be pausing/unpausing a parser that is not in an error
+   * state. In non-debug builds, there's not much that we can do about this
+   * other than ignore it.
+   */
+  if (HTTP_PARSER_ERRNO(parser) == HPE_OK ||
+      HTTP_PARSER_ERRNO(parser) == HPE_PAUSED) {
+    SET_ERRNO((paused) ? HPE_PAUSED : HPE_OK);
+  } else {
+    assert(0 && "Attempting to pause parser in error state");
+  }
+}
+
+int
+http_body_is_final(const struct http_parser *parser) {
+    return parser->state == s_message_done;
+}
+
+unsigned long
+http_parser_version(void) {
+  return HTTP_PARSER_VERSION_MAJOR * 0x10000 |
+         HTTP_PARSER_VERSION_MINOR * 0x00100 |
+         HTTP_PARSER_VERSION_PATCH * 0x00001;
+}
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs-parser/http_parser.h b/src/boost/libs/beast/test/bench/parser/nodejs-parser/http_parser.h
new file mode 100644
index 000000000..105ae510a
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs-parser/http_parser.h
@@ -0,0 +1,362 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#ifndef http_parser_h
+#define http_parser_h
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Also update SONAME in the Makefile whenever you change these. */
+#define HTTP_PARSER_VERSION_MAJOR 2
+#define HTTP_PARSER_VERSION_MINOR 7
+#define HTTP_PARSER_VERSION_PATCH 0
+
+#include <sys/types.h>
+#if defined(_WIN32) && !defined(__MINGW32__) && \
+  (!defined(_MSC_VER) || _MSC_VER<1600) && !defined(__WINE__)
+#include <BaseTsd.h>
+#include <stddef.h>
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#else
+#include <stdint.h>
+#endif
+
+/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
+ * faster
+ */
+#ifndef HTTP_PARSER_STRICT
+# define HTTP_PARSER_STRICT 1
+#endif
+
+/* Maximium header size allowed. If the macro is not defined
+ * before including this header then the default is used. To
+ * change the maximum header size, define the macro in the build
+ * environment (e.g. -DHTTP_MAX_HEADER_SIZE=<value>). To remove
+ * the effective limit on the size of the header, define the macro
+ * to a very large number (e.g. -DHTTP_MAX_HEADER_SIZE=0x7fffffff)
+ */
+#ifndef HTTP_MAX_HEADER_SIZE
+# define HTTP_MAX_HEADER_SIZE (80*1024)
+#endif
+
+typedef struct http_parser http_parser;
+typedef struct http_parser_settings http_parser_settings;
+
+
+/* Callbacks should return non-zero to indicate an error. The parser will
+ * then halt execution.
+ *
+ * The one exception is on_headers_complete. In a HTTP_RESPONSE parser
+ * returning '1' from on_headers_complete will tell the parser that it
+ * should not expect a body. This is used when receiving a response to a
+ * HEAD request which may contain 'Content-Length' or 'Transfer-Encoding:
+ * chunked' headers that indicate the presence of a body.
+ *
+ * Returning `2` from on_headers_complete will tell parser that it should not
+ * expect neither a body nor any futher responses on this connection. This is
+ * useful for handling responses to a CONNECT request which may not contain
+ * `Upgrade` or `Connection: upgrade` headers.
+ *
+ * http_data_cb does not return data chunks. It will be called arbitrarily
+ * many times for each string. E.G. you might get 10 callbacks for "on_url"
+ * each providing just a few characters more data.
+ */
+typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);
+typedef int (*http_cb) (http_parser*);
+
+
+/* Request Methods */
+#define HTTP_METHOD_MAP(XX)         \
+  XX(0,  DELETE,      DELETE)       \
+  XX(1,  GET,         GET)          \
+  XX(2,  HEAD,        HEAD)         \
+  XX(3,  POST,        POST)         \
+  XX(4,  PUT,         PUT)          \
+  /* pathological */                \
+  XX(5,  CONNECT,     CONNECT)      \
+  XX(6,  OPTIONS,     OPTIONS)      \
+  XX(7,  TRACE,       TRACE)        \
+  /* WebDAV */                      \
+  XX(8,  COPY,        COPY)         \
+  XX(9,  LOCK,        LOCK)         \
+  XX(10, MKCOL,       MKCOL)        \
+  XX(11, MOVE,        MOVE)         \
+  XX(12, PROPFIND,    PROPFIND)     \
+  XX(13, PROPPATCH,   PROPPATCH)    \
+  XX(14, SEARCH,      SEARCH)       \
+  XX(15, UNLOCK,      UNLOCK)       \
+  XX(16, BIND,        BIND)         \
+  XX(17, REBIND,      REBIND)       \
+  XX(18, UNBIND,      UNBIND)       \
+  XX(19, ACL,         ACL)          \
+  /* subversion */                  \
+  XX(20, REPORT,      REPORT)       \
+  XX(21, MKACTIVITY,  MKACTIVITY)   \
+  XX(22, CHECKOUT,    CHECKOUT)     \
+  XX(23, MERGE,       MERGE)        \
+  /* upnp */                        \
+  XX(24, MSEARCH,     M-SEARCH)     \
+  XX(25, NOTIFY,      NOTIFY)       \
+  XX(26, SUBSCRIBE,   SUBSCRIBE)    \
+  XX(27, UNSUBSCRIBE, UNSUBSCRIBE)  \
+  /* RFC-5789 */                    \
+  XX(28, PATCH,       PATCH)        \
+  XX(29, PURGE,       PURGE)        \
+  /* CalDAV */                      \
+  XX(30, MKCALENDAR,  MKCALENDAR)   \
+  /* RFC-2068, section 19.6.1.2 */  \
+  XX(31, LINK,        LINK)         \
+  XX(32, UNLINK,      UNLINK)       \
+
+enum http_method
+  {
+#define XX(num, name, string) HTTP_##name = num,
+  HTTP_METHOD_MAP(XX)
+#undef XX
+  };
+
+
+enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE, HTTP_BOTH };
+
+
+/* Flag values for http_parser.flags field */
+enum flags
+  { F_CHUNKED               = 1 << 0
+  , F_CONNECTION_KEEP_ALIVE = 1 << 1
+  , F_CONNECTION_CLOSE      = 1 << 2
+  , F_CONNECTION_UPGRADE    = 1 << 3
+  , F_TRAILING              = 1 << 4
+  , F_UPGRADE               = 1 << 5
+  , F_SKIPBODY              = 1 << 6
+  , F_CONTENTLENGTH         = 1 << 7
+  };
+
+
+/* Map for errno-related constants
+ *
+ * The provided argument should be a macro that takes 2 arguments.
+ */
+#define HTTP_ERRNO_MAP(XX)                                           \
+  /* No error */                                                     \
+  XX(OK, "success")                                                  \
+                                                                     \
+  /* Callback-related errors */                                      \
+  XX(CB_message_begin, "the on_message_begin callback failed")       \
+  XX(CB_url, "the on_url callback failed")                           \
+  XX(CB_header_field, "the on_header_field callback failed")         \
+  XX(CB_header_value, "the on_header_value callback failed")         \
+  XX(CB_headers_complete, "the on_headers_complete callback failed") \
+  XX(CB_body, "the on_body callback failed")                         \
+  XX(CB_message_complete, "the on_message_complete callback failed") \
+  XX(CB_status, "the on_status callback failed")                     \
+  XX(CB_chunk_header, "the on_chunk_header callback failed")         \
+  XX(CB_chunk_complete, "the on_chunk_complete callback failed")     \
+                                                                     \
+  /* Parsing-related errors */                                       \
+  XX(INVALID_EOF_STATE, "stream ended at an unexpected time")        \
+  XX(HEADER_OVERFLOW,                                                \
+     "too many header bytes seen; overflow detected")                \
+  XX(CLOSED_CONNECTION,                                              \
+     "data received after completed connection: close message")      \
+  XX(INVALID_VERSION, "invalid HTTP version")                        \
+  XX(INVALID_STATUS, "invalid HTTP status code")                     \
+  XX(INVALID_METHOD, "invalid HTTP method")                          \
+  XX(INVALID_URL, "invalid URL")                                     \
+  XX(INVALID_HOST, "invalid host")                                   \
+  XX(INVALID_PORT, "invalid port")                                   \
+  XX(INVALID_PATH, "invalid path")                                   \
+  XX(INVALID_QUERY_STRING, "invalid query string")                   \
+  XX(INVALID_FRAGMENT, "invalid fragment")                           \
+  XX(LF_EXPECTED, "LF character expected")                           \
+  XX(INVALID_HEADER_TOKEN, "invalid character in header")            \
+  XX(INVALID_CONTENT_LENGTH,                                         \
+     "invalid character in content-length header")                   \
+  XX(UNEXPECTED_CONTENT_LENGTH,                                      \
+     "unexpected content-length header")                             \
+  XX(INVALID_CHUNK_SIZE,                                             \
+     "invalid character in chunk size header")                       \
+  XX(INVALID_CONSTANT, "invalid constant string")                    \
+  XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
+  XX(STRICT, "strict mode assertion failed")                         \
+  XX(PAUSED, "parser is paused")                                     \
+  XX(UNKNOWN, "an unknown error occurred")
+
+
+/* Define HPE_* values for each errno value above */
+#define HTTP_ERRNO_GEN(n, s) HPE_##n,
+enum http_errno {
+  HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
+};
+#undef HTTP_ERRNO_GEN
+
+
+/* Get an http_errno value from an http_parser */
+#define HTTP_PARSER_ERRNO(p)            ((enum http_errno) (p)->http_errno)
+
+
+struct http_parser {
+  /** PRIVATE **/
+  unsigned int type : 2;         /* enum http_parser_type */
+  unsigned int flags : 8;        /* F_* values from 'flags' enum; semi-public */
+  unsigned int state : 7;        /* enum state from http_parser.c */
+  unsigned int header_state : 7; /* enum header_state from http_parser.c */
+  unsigned int index : 7;        /* index into current matcher */
+  unsigned int lenient_http_headers : 1;
+
+  uint32_t nread;          /* # bytes read in various scenarios */
+  uint64_t content_length; /* # bytes in body (0 if no Content-Length header) */
+
+  /** READ-ONLY **/
+  unsigned short http_major;
+  unsigned short http_minor;
+  unsigned int status_code : 16; /* responses only */
+  unsigned int method : 8;       /* requests only */
+  unsigned int http_errno : 7;
+
+  /* 1 = Upgrade header was present and the parser has exited because of that.
+   * 0 = No upgrade header present.
+   * Should be checked when http_parser_execute() returns in addition to
+   * error checking.
+   */
+  unsigned int upgrade : 1;
+
+  /** PUBLIC **/
+  void *data; /* A pointer to get hook to the "connection" or "socket" object */
+};
+
+
+struct http_parser_settings {
+  http_cb      on_message_begin;
+  http_data_cb on_url;
+  http_data_cb on_status;
+  http_data_cb on_header_field;
+  http_data_cb on_header_value;
+  http_cb      on_headers_complete;
+  http_data_cb on_body;
+  http_cb      on_message_complete;
+  /* When on_chunk_header is called, the current chunk length is stored
+   * in parser->content_length.
+   */
+  http_cb      on_chunk_header;
+  http_cb      on_chunk_complete;
+};
+
+
+enum http_parser_url_fields
+  { UF_SCHEMA           = 0
+  , UF_HOST             = 1
+  , UF_PORT             = 2
+  , UF_PATH             = 3
+  , UF_QUERY            = 4
+  , UF_FRAGMENT         = 5
+  , UF_USERINFO         = 6
+  , UF_MAX              = 7
+  };
+
+
+/* Result structure for http_parser_parse_url().
+ *
+ * Callers should index into field_data[] with UF_* values iff field_set
+ * has the relevant (1 << UF_*) bit set. As a courtesy to clients (and
+ * because we probably have padding left over), we convert any port to
+ * a uint16_t.
+ */
+struct http_parser_url {
+  uint16_t field_set;           /* Bitmask of (1 << UF_*) values */
+  uint16_t port;                /* Converted UF_PORT string */
+
+  struct {
+    uint16_t off;               /* Offset into buffer in which field starts */
+    uint16_t len;               /* Length of run in buffer */
+  } field_data[UF_MAX];
+};
+
+
+/* Returns the library version. Bits 16-23 contain the major version number,
+ * bits 8-15 the minor version number and bits 0-7 the patch level.
+ * Usage example:
+ *
+ *   unsigned long version = http_parser_version();
+ *   unsigned major = (version >> 16) & 255;
+ *   unsigned minor = (version >> 8) & 255;
+ *   unsigned patch = version & 255;
+ *   printf("http_parser v%u.%u.%u\n", major, minor, patch);
+ */
+unsigned long http_parser_version(void);
+
+void http_parser_init(http_parser *parser, enum http_parser_type type);
+
+
+/* Initialize http_parser_settings members to 0
+ */
+void http_parser_settings_init(http_parser_settings *settings);
+
+
+/* Executes the parser. Returns number of parsed bytes. Sets
+ * `parser->http_errno` on error. */
+size_t http_parser_execute(http_parser *parser,
+                           const http_parser_settings *settings,
+                           const char *data,
+                           size_t len);
+
+
+/* If http_should_keep_alive() in the on_headers_complete or
+ * on_message_complete callback returns 0, then this should be
+ * the last message on the connection.
+ * If you are the server, respond with the "Connection: close" header.
+ * If you are the client, close the connection.
+ */
+int http_should_keep_alive(const http_parser *parser);
+
+/* Returns a string version of the HTTP method. */
+const char *http_method_str(enum http_method m);
+
+/* Return a string name of the given error */
+const char *http_errno_name(enum http_errno err);
+
+/* Return a string description of the given error */
+const char *http_errno_description(enum http_errno err);
+
+/* Initialize all http_parser_url members to 0 */
+void http_parser_url_init(struct http_parser_url *u);
+
+/* Parse a URL; return nonzero on failure */
+int http_parser_parse_url(const char *buf, size_t buflen,
+                          int is_connect,
+                          struct http_parser_url *u);
+
+/* Pause or un-pause the parser; a nonzero value pauses */
+void http_parser_pause(http_parser *parser, int paused);
+
+/* Checks if this is the final chunk of the body. */
+int http_body_is_final(const http_parser *parser);
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs_parser.cpp b/src/boost/libs/beast/test/bench/parser/nodejs_parser.cpp
new file mode 100644
index 000000000..cc14b9818
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs_parser.cpp
@@ -0,0 +1,31 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#if defined(__GNUC__) && (__GNUC__ >= 7)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
+
+#include <boost/config.hpp>
+
+#ifdef BOOST_MSVC
+# pragma warning (push)
+# pragma warning (disable: 4127) // conditional expression is constant
+# pragma warning (disable: 4244) // integer conversion, possible loss of data
+#endif
+
+#include "nodejs-parser/http_parser.c"
+
+#ifdef BOOST_MSVC
+# pragma warning (pop)
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ >= 7)
+#pragma GCC diagnostic pop
+#endif
diff --git a/src/boost/libs/beast/test/bench/parser/nodejs_parser.hpp b/src/boost/libs/beast/test/bench/parser/nodejs_parser.hpp
new file mode 100644
index 000000000..68afd6f5d
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/parser/nodejs_parser.hpp
@@ -0,0 +1,640 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_HTTP_NODEJS_PARSER_HPP
+#define BOOST_BEAST_HTTP_NODEJS_PARSER_HPP
+
+#include "nodejs-parser/http_parser.h"
+
+#include <boost/beast/http/message.hpp>
+#include <boost/beast/http/rfc7230.hpp>
+#include <boost/beast/core/buffers_range.hpp>
+#include <boost/beast/core/error.hpp>
+#include <boost/asio/buffer.hpp>
+#include <boost/system/error_code.hpp>
+#include <boost/throw_exception.hpp>
+#include <cstdint>
+#include <string>
+#include <type_traits>
+#include <utility>
+
+namespace boost {
+namespace beast {
+namespace http {
+
+namespace detail {
+
+class nodejs_message_category final
+    : public boost::system::error_category
+{
+public:
+    const char*
+    name() const noexcept override
+    {
+        return "nodejs-http-error";
+    }
+
+    std::string
+    message(int ev) const override
+    {
+        return http_errno_description(
+            static_cast<http_errno>(ev));
+    }
+
+    boost::system::error_condition
+    default_error_condition(int ev) const noexcept override
+    {
+        return boost::system::error_condition{ev, *this};
+    }
+
+    bool
+    equivalent(int ev,
+        boost::system::error_condition const& condition
+            ) const noexcept override
+    {
+        return condition.value() == ev &&
+            &condition.category() == this;
+    }
+
+    bool
+    equivalent(boost::system::error_code const& error,
+        int ev) const noexcept override
+    {
+        return error.value() == ev &&
+            &error.category() == this;
+    }
+};
+
+template<class = void>
+boost::system::error_code
+make_nodejs_error(int http_errno)
+{
+    static nodejs_message_category const mc{};
+    return boost::system::error_code{http_errno, mc};
+}
+
+inline
+char const*
+method_to_string(unsigned method)
+{
+    using namespace beast;
+    switch(static_cast<http_method>(method))
+    {
+    case HTTP_DELETE:      return "DELETE";
+    case HTTP_GET:         return "GET";
+    case HTTP_HEAD:        return "HEAD";
+    case HTTP_POST:        return "POST";
+    case HTTP_PUT:         return "PUT";
+
+    // pathological
+    case HTTP_CONNECT:     return "CONNECT";
+    case HTTP_OPTIONS:     return "OPTIONS";
+    case HTTP_TRACE:       return "TRACE";
+
+    // webdav
+    case HTTP_COPY:        return "COPY";
+    case HTTP_LOCK:        return "LOCK";
+    case HTTP_MKCOL:       return "MKCOL";
+    case HTTP_MOVE:        return "MOVE";
+    case HTTP_PROPFIND:    return "PROPFIND";
+    case HTTP_PROPPATCH:   return "PROPPATCH";
+    case HTTP_SEARCH:      return "SEARCH";
+    case HTTP_UNLOCK:      return "UNLOCK";
+    case HTTP_BIND:        return "BIND";
+    case HTTP_REBIND:      return "REBIND";
+    case HTTP_UNBIND:      return "UNBIND";
+    case HTTP_ACL:         return "ACL";
+
+    // subversion
+    case HTTP_REPORT:      return "REPORT";
+    case HTTP_MKACTIVITY:  return "MKACTIVITY";
+    case HTTP_CHECKOUT:    return "CHECKOUT";
+    case HTTP_MERGE:       return "MERGE";
+
+    // upnp
+    case HTTP_MSEARCH:     return "MSEARCH";
+    case HTTP_NOTIFY:      return "NOTIFY";
+    case HTTP_SUBSCRIBE:   return "SUBSCRIBE";
+    case HTTP_UNSUBSCRIBE: return "UNSUBSCRIBE";
+
+    // RFC-5789
+    case HTTP_PATCH:       return "PATCH";
+    case HTTP_PURGE:       return "PURGE";
+
+    // CalDav
+    case HTTP_MKCALENDAR:  return "MKCALENDAR";
+
+    // RFC-2068, section 19.6.1.2
+    case HTTP_LINK:        return "LINK";
+    case HTTP_UNLINK:      return "UNLINK";
+    };
+
+    return "<unknown>";
+}
+
+} // detail
+
+template<class Derived>
+class nodejs_basic_parser
+{
+    http_parser state_;
+    boost::system::error_code* ec_;
+    bool complete_ = false;
+    std::string url_;
+    std::string status_;
+    std::string field_;
+    std::string value_;
+
+public:
+    using error_code = boost::system::error_code;
+
+    nodejs_basic_parser(nodejs_basic_parser&& other);
+
+    nodejs_basic_parser&
+    operator=(nodejs_basic_parser&& other);
+
+    nodejs_basic_parser(nodejs_basic_parser const& other);
+
+    nodejs_basic_parser& operator=(nodejs_basic_parser const& other);
+
+    explicit
+    nodejs_basic_parser(bool request) noexcept;
+
+    bool
+    complete() const noexcept
+    {
+        return complete_;
+    }
+
+    std::size_t
+    write(void const* data, std::size_t size)
+    {
+        error_code ec;
+        auto const used = write(data, size, ec);
+        if(ec)
+            BOOST_THROW_EXCEPTION(system_error{ec});
+        return used;
+    }
+
+    std::size_t
+    write(void const* data, std::size_t size,
+        error_code& ec);
+
+    template<class ConstBufferSequence>
+    std::size_t
+    write(ConstBufferSequence const& buffers)
+    {
+        error_code ec;
+        auto const used = write(buffers, ec);
+        if(ec)
+            BOOST_THROW_EXCEPTION(system_error{ec});
+        return used;
+    }
+
+    template<class ConstBufferSequence>
+    std::size_t
+    write(ConstBufferSequence const& buffers,
+        error_code& ec);
+
+    void
+    write_eof()
+    {
+        error_code ec;
+        write_eof(ec);
+        if(ec)
+            BOOST_THROW_EXCEPTION(system_error{ec});
+    }
+
+    void
+    write_eof(error_code& ec);
+
+    void
+    check_header();
+
+private:
+    Derived&
+    impl()
+    {
+        return *static_cast<Derived*>(this);
+    }
+
+    static int cb_message_start(http_parser*);
+    static int cb_url(http_parser*, char const*, std::size_t);
+    static int cb_status(http_parser*, char const*, std::size_t);
+    static int cb_header_field(http_parser*, char const*, std::size_t);
+    static int cb_header_value(http_parser*, char const*, std::size_t);
+    static int cb_headers_complete(http_parser*);
+    static int cb_body(http_parser*, char const*, std::size_t);
+    static int cb_message_complete(http_parser*);
+    static int cb_chunk_header(http_parser*);
+    static int cb_chunk_complete(http_parser*);
+
+    struct hooks_t : http_parser_settings
+    {
+        hooks_t()
+        {
+            http_parser_settings_init(this);
+            on_message_begin    = &nodejs_basic_parser::cb_message_start;
+            on_url              = &nodejs_basic_parser::cb_url;
+            on_status           = &nodejs_basic_parser::cb_status;
+            on_header_field     = &nodejs_basic_parser::cb_header_field;
+            on_header_value     = &nodejs_basic_parser::cb_header_value;
+            on_headers_complete = &nodejs_basic_parser::cb_headers_complete;
+            on_body             = &nodejs_basic_parser::cb_body;
+            on_message_complete = &nodejs_basic_parser::cb_message_complete;
+            on_chunk_header     = &nodejs_basic_parser::cb_chunk_header;
+            on_chunk_complete   = &nodejs_basic_parser::cb_chunk_complete;
+        }
+    };
+
+    static
+    http_parser_settings const*
+    hooks();
+};
+
+template<class Derived>
+template<class ConstBufferSequence>
+std::size_t
+nodejs_basic_parser<Derived>::write(
+    ConstBufferSequence const& buffers, error_code& ec)
+{
+    static_assert(net::is_const_buffer_sequence<
+        ConstBufferSequence>::value,
+            "ConstBufferSequence type requirements not met");
+    std::size_t bytes_used = 0;
+    for(auto buffer : beast::buffers_range_ref(buffers))
+    {
+        auto const n = write(
+            static_cast<void const*>(buffer.data()),
+                buffer.size(), ec);
+        if(ec)
+            return 0;
+        bytes_used += n;
+        if(complete())
+            break;
+    }
+    return bytes_used;
+}
+
+template<class Derived>
+http_parser_settings const*
+nodejs_basic_parser<Derived>::hooks()
+{
+    static hooks_t const h;
+    return &h;
+}
+
+template<class Derived>
+nodejs_basic_parser<Derived>::
+nodejs_basic_parser(nodejs_basic_parser&& other)
+{
+    state_ = other.state_;
+    state_.data = this;
+    complete_ = other.complete_;
+    url_ = std::move(other.url_);
+    status_ = std::move(other.status_);
+    field_ = std::move(other.field_);
+    value_ = std::move(other.value_);
+}
+
+template<class Derived>
+auto
+nodejs_basic_parser<Derived>::
+operator=(nodejs_basic_parser&& other) ->
+    nodejs_basic_parser&
+{
+    state_ = other.state_;
+    state_.data = this;
+    complete_ = other.complete_;
+    url_ = std::move(other.url_);
+    status_ = std::move(other.status_);
+    field_ = std::move(other.field_);
+    value_ = std::move(other.value_);
+    return *this;
+}
+
+template<class Derived>
+nodejs_basic_parser<Derived>::
+nodejs_basic_parser(nodejs_basic_parser const& other)
+{
+    state_ = other.state_;
+    state_.data = this;
+    complete_ = other.complete_;
+    url_ = other.url_;
+    status_ = other.status_;
+    field_ = other.field_;
+    value_ = other.value_;
+}
+
+template<class Derived>
+auto
+nodejs_basic_parser<Derived>::
+operator=(nodejs_basic_parser const& other) ->
+    nodejs_basic_parser&
+{
+    state_ = other.state_;
+    state_.data = this;
+    complete_ = other.complete_;
+    url_ = other.url_;
+    status_ = other.status_;
+    field_ = other.field_;
+    value_ = other.value_;
+    return *this;
+}
+
+template<class Derived>
+nodejs_basic_parser<Derived>::
+nodejs_basic_parser(bool request) noexcept
+{
+    state_.data = this;
+    http_parser_init(&state_, request
+        ? http_parser_type::HTTP_REQUEST
+        : http_parser_type::HTTP_RESPONSE);
+}
+
+template<class Derived>
+std::size_t
+nodejs_basic_parser<Derived>::
+write(void const* data,
+    std::size_t size, error_code& ec)
+{
+    ec_ = &ec;
+    auto const n = http_parser_execute(
+        &state_, hooks(),
+            static_cast<const char*>(data), size);
+    if(! ec)
+        ec = detail::make_nodejs_error(
+            static_cast<int>(state_.http_errno));
+    if(ec)
+        return 0;
+    return n;
+}
+
+template<class Derived>
+void
+nodejs_basic_parser<Derived>::
+write_eof(error_code& ec)
+{
+    ec_ = &ec;
+    http_parser_execute(&state_, hooks(), nullptr, 0);
+    if(! ec)
+        ec = detail::make_nodejs_error(
+            static_cast<int>(state_.http_errno));
+}
+
+template<class Derived>
+void
+nodejs_basic_parser<Derived>::
+check_header()
+{
+    if(! value_.empty())
+    {
+        impl().on_field(field_, value_);
+        field_.clear();
+        value_.clear();
+    }
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_message_start(http_parser* p)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.complete_ = false;
+    t.url_.clear();
+    t.status_.clear();
+    t.field_.clear();
+    t.value_.clear();
+    t.impl().on_start();
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_url(http_parser* p,
+    char const* in, std::size_t bytes)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.url_.append(in, bytes);
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_status(http_parser* p,
+    char const* in, std::size_t bytes)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.status_.append(in, bytes);
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_header_field(http_parser* p,
+    char const* in, std::size_t bytes)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.check_header();
+    t.field_.append(in, bytes);
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_header_value(http_parser* p,
+    char const* in, std::size_t bytes)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.value_.append(in, bytes);
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_headers_complete(http_parser* p)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.check_header();
+    t.impl().on_headers_complete(*t.ec_);
+    if(*t.ec_)
+        return 1;
+    bool const keep_alive =
+        http_should_keep_alive(p) != 0;
+    if(p->type == http_parser_type::HTTP_REQUEST)
+    {
+        t.impl().on_request(p->method, t.url_,
+            p->http_major, p->http_minor, keep_alive,
+                p->upgrade);
+        return 0;
+    }
+    return t.impl().on_response(p->status_code, t.status_,
+        p->http_major, p->http_minor, keep_alive,
+            p->upgrade) ? 0 : 1;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_body(http_parser* p,
+    char const* in, std::size_t bytes)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.impl().on_body(in, bytes, *t.ec_);
+    return *t.ec_ ? 1 : 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_message_complete(http_parser* p)
+{
+    auto& t = *reinterpret_cast<nodejs_basic_parser*>(p->data);
+    t.complete_ = true;
+    t.impl().on_complete();
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_chunk_header(http_parser*)
+{
+    return 0;
+}
+
+template<class Derived>
+int
+nodejs_basic_parser<Derived>::
+cb_chunk_complete(http_parser*)
+{
+    return 0;
+}
+
+//------------------------------------------------------------------------------
+
+/** A HTTP parser.
+
+    The parser may only be used once.
+*/
+template<bool isRequest, class Body, class Fields>
+class nodejs_parser
+    : public nodejs_basic_parser<nodejs_parser<isRequest, Body, Fields>>
+{
+    bool started_ = false;
+
+public:
+    nodejs_parser(nodejs_parser&&) = default;
+
+    nodejs_parser()
+        : http::nodejs_basic_parser<nodejs_parser>(isRequest)
+    {
+    }
+
+    /// Returns `true` if at least one byte has been processed
+    bool
+    started()
+    {
+        return started_;
+    }
+
+private:
+    friend class http::nodejs_basic_parser<nodejs_parser>;
+
+    void
+    on_start()
+    {
+        started_ = true;
+    }
+
+    void
+    on_field(std::string const&, std::string const&)
+    {
+    }
+
+    void
+    on_headers_complete(error_code& ec)
+    {
+        // vFALCO TODO Decode the Content-Length and
+        // Transfer-Encoding, see if we can reserve the buffer.
+        //
+        // r_.reserve(content_length)
+        ec = {};
+    }
+
+    bool
+    on_request(unsigned, std::string const&,
+        int, int, bool, bool, std::true_type)
+    {
+        return true;
+    }
+
+    bool
+    on_request(unsigned, std::string const&,
+        int, int, bool, bool, std::false_type)
+    {
+        return true;
+    }
+
+    bool
+    on_request(unsigned method, std::string const& url,
+        int major, int minor, bool keep_alive, bool upgrade)
+    {
+        return on_request(method, url,
+            major, minor, keep_alive, upgrade,
+                std::integral_constant<
+                    bool, isRequest>{});
+    }
+
+    bool
+    on_response(int, std::string const&,
+        int, int, bool, bool, std::true_type)
+    {
+        return true;
+    }
+
+    bool
+    on_response(int, std::string const&, int, int, bool, bool,
+        std::false_type)
+    {
+        return true;
+    }
+
+    bool
+    on_response(int status, std::string const& reason,
+        int major, int minor, bool keep_alive, bool upgrade)
+    {
+        return on_response(
+            status, reason, major, minor, keep_alive, upgrade,
+                std::integral_constant<bool, ! isRequest>{});
+    }
+
+    void
+    on_body(void const*, std::size_t, error_code& ec)
+    {
+        ec = {};
+    }
+
+    void
+    on_complete()
+    {
+    }
+};
+
+} // http
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/bench/utf8_checker/CMakeLists.txt b/src/boost/libs/beast/test/bench/utf8_checker/CMakeLists.txt
new file mode 100644
index 000000000..6164127a6
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/utf8_checker/CMakeLists.txt
@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/bench/utf8_checker "/")
+
+add_executable (bench-utf8-checker
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    bench_utf8_checker.cpp
+)
+
+target_link_libraries(bench-utf8-checker
+    lib-asio
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET bench-utf8-checker PROPERTY FOLDER "tests-bench")
diff --git a/src/boost/libs/beast/test/bench/utf8_checker/Jamfile b/src/boost/libs/beast/test/bench/utf8_checker/Jamfile
new file mode 100644
index 000000000..1d352f381
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/utf8_checker/Jamfile
@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe bench-utf8-checker  : bench_utf8_checker.cpp
+    : requirements
+    <library>/boost/beast/test//lib-test
+    ;
+
+explicit bench-utf8-checker ;
+
+alias run-tests :
+    [ compile bench_utf8_checker.cpp ]
+    ;
diff --git a/src/boost/libs/beast/test/bench/utf8_checker/bench_utf8_checker.cpp b/src/boost/libs/beast/test/bench/utf8_checker/bench_utf8_checker.cpp
new file mode 100644
index 000000000..e7f81004b
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/utf8_checker/bench_utf8_checker.cpp
@@ -0,0 +1,157 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/websocket/detail/utf8_checker.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <chrono>
+#include <random>
+
+#ifndef BEAST_USE_BOOST_LOCALE_BENCHMARK
+#define BEAST_USE_BOOST_LOCALE_BENCHMARK 0
+#endif
+
+#if BEAST_USE_BOOST_LOCALE_BENCHMARK
+#include <boost/locale.hpp>
+#endif
+
+namespace boost {
+namespace beast {
+
+class utf8_checker_test : public beast::unit_test::suite
+{
+    std::mt19937 rng_;
+
+public:
+    using size_type = std::uint64_t;
+
+    class timer
+    {
+    public:
+        using clock_type =
+            std::chrono::system_clock;
+
+    private:
+        clock_type::time_point when_;
+
+    public:
+        using duration =
+            clock_type::duration;
+
+        timer()
+            : when_(clock_type::now())
+        {
+        }
+
+        duration
+        elapsed() const
+        {
+            return clock_type::now() - when_;
+        }
+    };
+
+    template<class UInt = std::size_t>
+    UInt
+    rand(std::size_t n)
+    {
+        return static_cast<UInt>(
+            std::uniform_int_distribution<
+                std::size_t>{0, n-1}(rng_));
+    }
+
+    static
+    inline
+    size_type
+    throughput(std::chrono::duration<
+        double> const& elapsed, size_type items)
+    {
+        using namespace std::chrono;
+        return static_cast<size_type>(
+            1 / (elapsed/items).count());
+    }
+
+    std::string
+    corpus(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        while(n--)
+            s.push_back(static_cast<char>(
+                ' ' + rand(95)));
+        return s;
+    }
+
+    void
+    checkBeast(std::string const& s)
+    {
+        beast::websocket::detail::check_utf8(
+            s.data(), s.size());
+    }
+
+#if BEAST_USE_BOOST_LOCALE_BENCHMARK
+    void
+    checkLocale(std::string const& s)
+    {
+        using namespace boost::locale;
+        auto p = s.begin();
+        auto const e = s.end();
+        while(p != e)
+        {
+            auto cp = utf::utf_traits<char>::decode(p, e);
+            if(cp == utf::illegal)
+                break;
+        }
+    }
+#endif
+
+    template<class F>
+    typename timer::clock_type::duration
+    test(F const& f)
+    {
+        timer t;
+        f();
+        return t.elapsed();
+    }
+
+    void
+    run() override
+    {
+        auto const s = corpus(32 * 1024 * 1024);
+        for(int i = 0; i < 5; ++ i)
+        {
+            auto const elapsed = test([&]{
+                checkBeast(s);
+                checkBeast(s);
+                checkBeast(s);
+                checkBeast(s);
+                checkBeast(s);
+            });
+            log << "beast:  " << throughput(elapsed, s.size()) << " char/s" << std::endl;
+        }
+    #if BEAST_USE_BOOST_LOCALE_BENCHMARK
+        for(int i = 0; i < 5; ++ i)
+        {
+            auto const elapsed = test([&]{
+                checkLocale(s);
+                checkLocale(s);
+                checkLocale(s);
+                checkLocale(s);
+                checkLocale(s);
+            });
+            log << "locale: " << throughput(elapsed, s.size()) << " char/s" << std::endl;
+        }
+    #endif
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,benchmarks,utf8_checker);
+
+} // beast
+} // boost
+
diff --git a/src/boost/libs/beast/test/bench/wsload/CMakeLists.txt b/src/boost/libs/beast/test/bench/wsload/CMakeLists.txt
new file mode 100644
index 000000000..7a6c58760
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/wsload/CMakeLists.txt
@@ -0,0 +1,24 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/bench/wsload "/")
+
+add_executable (bench-wsload
+    ${BOOST_BEAST_FILES}
+    Jamfile
+    wsload.cpp
+    )
+
+target_link_libraries(bench-wsload
+    lib-asio
+    lib-beast
+    )
+
+set_property(TARGET bench-wsload PROPERTY FOLDER "tests-bench")
diff --git a/src/boost/libs/beast/test/bench/wsload/Jamfile b/src/boost/libs/beast/test/bench/wsload/Jamfile
new file mode 100644
index 000000000..82706e15e
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/wsload/Jamfile
@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe wsload :
+    wsload.cpp
+    ;
+
+explicit wsload ;
+
+alias run-tests :
+    [ compile wsload.cpp : : wsload-compile ]
+    ;
diff --git a/src/boost/libs/beast/test/bench/wsload/wsload.cpp b/src/boost/libs/beast/test/bench/wsload/wsload.cpp
new file mode 100644
index 000000000..f697d9b85
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/wsload/wsload.cpp
@@ -0,0 +1,338 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+//------------------------------------------------------------------------------
+//
+// wsload
+//
+//  Measure the performance of a WebSocket server
+//
+//------------------------------------------------------------------------------
+
+#include <boost/beast/core.hpp>
+#include <boost/beast/websocket.hpp>
+#include <boost/beast/_experimental/unit_test/dstream.hpp>
+#include <boost/asio.hpp>
+#include <atomic>
+#include <chrono>
+#include <cstdlib>
+#include <functional>
+#include <iostream>
+#include <memory>
+#include <mutex>
+#include <random>
+#include <thread>
+#include <vector>
+
+namespace beast = boost::beast;         // from <boost/beast.hpp>
+namespace http = beast::http;           // from <boost/beast/http.hpp>
+namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp>
+namespace net = boost::asio;            // from <boost/asio.hpp>
+using tcp = boost::asio::ip::tcp;       // from <boost/asio/ip/tcp.hpp>
+
+class test_buffer
+{
+    char data_[4096];
+    net::const_buffer b_;
+
+public:
+    using const_iterator =
+        net::const_buffer const*;
+
+    using value_type = net::const_buffer;
+
+    test_buffer()
+        : b_(data_, sizeof(data_))
+    {
+        std::mt19937_64 rng;
+        std::uniform_int_distribution<unsigned short> dist;
+        for(auto& c : data_)
+            c = static_cast<unsigned char>(dist(rng));
+    }
+
+    const_iterator
+    begin() const
+    {
+        return &b_;
+    }
+
+    const_iterator
+    end() const
+    {
+        return begin() + 1;
+    }
+};
+
+class report
+{
+    std::mutex m_;
+    std::size_t bytes_ = 0;
+    std::size_t messages_ = 0;
+
+public:
+    void
+    insert(std::size_t messages, std::size_t bytes)
+    {
+        std::lock_guard<std::mutex> lock(m_);
+        bytes_ += bytes;
+        messages_ += messages;
+    }
+
+    std::size_t
+    bytes() const
+    {
+        return bytes_;
+    }
+
+    std::size_t
+    messages() const
+    {
+        return messages_;
+    }
+};
+
+void
+fail(beast::error_code ec, char const* what)
+{
+    std::cerr << what << ": " << ec.message() << "\n";
+}
+
+class connection
+    : public std::enable_shared_from_this<connection>
+{
+    websocket::stream<tcp::socket> ws_;
+    tcp::endpoint ep_;
+    std::size_t messages_;
+    report& rep_;
+    test_buffer const& tb_;
+    net::strand<
+        net::io_context::executor_type> strand_;
+    beast::flat_buffer buffer_;
+    std::mt19937_64 rng_;
+    std::size_t count_ = 0;
+    std::size_t bytes_ = 0;
+
+public:
+    connection(
+        net::io_context& ioc,
+        tcp::endpoint const& ep,
+        std::size_t messages,
+        bool deflate,
+        report& rep,
+        test_buffer const& tb)
+        : ws_(ioc)
+        , ep_(ep)
+        , messages_(messages)
+        , rep_(rep)
+        , tb_(tb)
+        , strand_(ioc.get_executor())
+    {
+        websocket::permessage_deflate pmd;
+        pmd.client_enable = deflate;
+        ws_.set_option(pmd);
+        ws_.binary(true);
+        ws_.auto_fragment(false);
+        ws_.write_buffer_bytes(64 * 1024);
+    }
+
+    ~connection()
+    {
+        rep_.insert(count_, bytes_);
+    }
+
+    void
+    run()
+    {
+        ws_.next_layer().async_connect(ep_,
+            beast::bind_front_handler(
+                &connection::on_connect,
+                this->shared_from_this()));
+    }
+
+private:
+    void
+    on_connect(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "on_connect");
+
+        ws_.async_handshake(
+            ep_.address().to_string() + ":" + std::to_string(ep_.port()),
+            "/",
+            beast::bind_front_handler(
+                &connection::on_handshake,
+                this->shared_from_this()));
+    }
+
+    void
+    on_handshake(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "handshake");
+
+        do_write();
+    }
+
+    void
+    do_write()
+    {
+        std::geometric_distribution<std::size_t> dist{
+            double(4) / beast::buffer_bytes(tb_)};
+        ws_.async_write_some(true,
+            beast::buffers_prefix(dist(rng_), tb_),
+            beast::bind_front_handler(
+                &connection::on_write,
+                this->shared_from_this()));
+    }
+
+    void
+    on_write(beast::error_code ec, std::size_t)
+    {
+        if(ec)
+            return fail(ec, "write");
+
+        if(messages_--)
+            return do_read();
+
+        ws_.async_close({},
+            beast::bind_front_handler(
+                &connection::on_close,
+                this->shared_from_this()));
+    }
+
+    void
+    do_read()
+    {
+        ws_.async_read(buffer_,
+            beast::bind_front_handler(
+                &connection::on_read,
+                this->shared_from_this()));
+    }
+
+    void
+    on_read(beast::error_code ec, std::size_t)
+    {
+        if(ec)
+            return fail(ec, "read");
+
+        ++count_;
+        bytes_ += buffer_.size();
+        buffer_.consume(buffer_.size());
+        do_write();
+    }
+
+    void
+    on_close(beast::error_code ec)
+    {
+        if(ec)
+            return fail(ec, "close");
+    }
+};
+
+class timer
+{
+    using clock_type =
+        std::chrono::system_clock;
+
+    clock_type::time_point when_;
+
+public:
+    using duration =
+        clock_type::duration;
+
+    timer()
+        : when_(clock_type::now())
+    {
+    }
+
+    duration
+    elapsed() const
+    {
+        return clock_type::now() - when_;
+    }
+};
+
+inline
+std::uint64_t
+throughput(
+    std::chrono::duration<double> const& elapsed,
+    std::uint64_t items)
+{
+    using namespace std::chrono;
+    return static_cast<std::uint64_t>(
+        1 / (elapsed/items).count());
+}
+
+int
+main(int argc, char** argv)
+{
+    beast::unit_test::dstream dout(std::cerr);
+
+    try
+    {
+        // Check command line arguments.
+        if(argc != 8)
+        {
+            std::cerr <<
+                "Usage: bench-wsload <address> <port> <trials> <messages> <workers> <threads> <compression:0|1>";
+            return EXIT_FAILURE;
+        }
+
+        auto const address = net::ip::make_address(argv[1]);
+        auto const port    = static_cast<unsigned short>(std::atoi(argv[2]));
+        auto const trials  = static_cast<std::size_t>(std::atoi(argv[3]));
+        auto const messages= static_cast<std::size_t>(std::atoi(argv[4]));
+        auto const workers = static_cast<std::size_t>(std::atoi(argv[5]));
+        auto const threads = static_cast<std::size_t>(std::atoi(argv[6]));
+        auto const deflate = std::atoi(argv[7]) != 0;
+        auto const work = (messages + workers - 1) / workers;
+        test_buffer tb;
+        for(auto i = trials; i != 0; --i)
+        {
+            report rep;
+            net::io_context ioc{1};
+            for(auto j = workers; j; --j)
+            {
+                auto sp =
+                std::make_shared<connection>(
+                    ioc,
+                    tcp::endpoint{address, port},
+                    work,
+                    deflate,
+                    rep,
+                    tb);
+                sp->run();
+            }
+            timer clock;
+            std::vector<std::thread> tv;
+            if(threads > 1)
+            {
+                tv.reserve(threads);
+                tv.emplace_back([&ioc]{ ioc.run(); });
+            }
+            ioc.run();
+            for(auto& t : tv)
+                t.join();
+            auto const elapsed = clock.elapsed();
+            dout <<
+                throughput(elapsed, rep.bytes()) << " bytes/s in " <<
+                (std::chrono::duration_cast<
+                    std::chrono::milliseconds>(
+                    elapsed).count() / 1000.) << "ms and " <<
+                rep.bytes() << " bytes" << std::endl;
+        }
+    }
+    catch(std::exception const& e)
+    {
+        std::cerr << "Error: " << e.what() << std::endl;
+        return EXIT_FAILURE;
+    }
+
+    return EXIT_SUCCESS;
+}
diff --git a/src/boost/libs/beast/test/bench/zlib/CMakeLists.txt b/src/boost/libs/beast/test/bench/zlib/CMakeLists.txt
new file mode 100644
index 000000000..a030ed93f
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/zlib/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (test/extern/zlib-1.2.11 zlib)
+GroupSources (test/bench/zlib "/")
+
+if (MSVC)
+    set_source_files_properties (${ZLIB_SOURCES} PROPERTIES COMPILE_FLAGS "/wd4127 /wd4131 /wd4244")
+endif()
+
+add_executable (bench-zlib
+    ${BOOST_BEAST_FILES}
+    ${ZLIB_SOURCES}
+    Jamfile
+    deflate_stream.cpp
+    inflate_stream.cpp
+)
+target_link_libraries(bench-zlib
+    lib-asio
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET bench-zlib PROPERTY FOLDER "tests-bench")
diff --git a/src/boost/libs/beast/test/bench/zlib/Jamfile b/src/boost/libs/beast/test/bench/zlib/Jamfile
new file mode 100644
index 000000000..6e210c29b
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/zlib/Jamfile
@@ -0,0 +1,15 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+exe bench-zlib :
+    $(ZLIB_SOURCES)
+    deflate_stream.cpp
+    inflate_stream.cpp
+    /boost/beast/test//lib-test
+    ;
diff --git a/src/boost/libs/beast/test/bench/zlib/deflate_stream.cpp b/src/boost/libs/beast/test/bench/zlib/deflate_stream.cpp
new file mode 100644
index 000000000..321fa98c0
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/zlib/deflate_stream.cpp
@@ -0,0 +1,199 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/zlib/deflate_stream.hpp>
+#include <boost/beast/test/throughput.hpp>
+#include <boost/beast/_experimental/unit_test/dstream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <iomanip>
+#include <random>
+#include <string>
+
+#include "zlib-1.2.11/zlib.h"
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class deflate_stream_test : public beast::unit_test::suite
+{
+public:
+    // Lots of repeats, limited char range
+    static
+    std::string
+    corpus1(std::size_t n)
+    {
+        static std::string const alphabet{
+            "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+        };
+        std::string s;
+        s.reserve(n + 5);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::size_t> d0{
+            0, alphabet.size() - 1};
+        std::uniform_int_distribution<std::size_t> d1{
+            1, 5};
+        while(s.size() < n)
+        {
+            auto const rep = d1(g);
+            auto const ch = alphabet[d0(g)];
+            s.insert(s.end(), rep, ch);
+        }
+        s.resize(n);
+        return s;
+    }
+
+    // Random data
+    static
+    std::string
+    corpus2(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::uint32_t> d0{0, 255};
+        while(n--)
+            s.push_back(static_cast<char>(d0(g)));
+        return s;
+    }
+
+    std::string
+    doDeflateBeast(string_view const& in)
+    {
+        z_params zs;
+        deflate_stream ds;
+        ds.reset(
+            Z_DEFAULT_COMPRESSION,
+            15,
+            4,
+            Strategy::normal);
+        std::string out;
+        out.resize(deflate_upper_bound(in.size()));
+        zs.next_in = in.data();
+        zs.avail_in = in.size();
+        zs.next_out = &out[0];
+        zs.avail_out = out.size();
+        error_code ec;
+        ds.write(zs, Flush::full, ec);
+        BEAST_EXPECTS(! ec, ec.message());
+        out.resize(zs.total_out);
+        return out;
+    }
+
+    std::string
+    doDeflateZLib(string_view const& in)
+    {
+        int result;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = deflateInit2(
+            &zs,
+            Z_DEFAULT_COMPRESSION,
+            Z_DEFLATED,
+            -15,
+            4,
+            Z_DEFAULT_STRATEGY
+        );
+        if(result != Z_OK)
+            throw std::logic_error("deflateInit2 failed");
+        std::string out;
+        out.resize(deflateBound(&zs,
+            static_cast<uLong>(in.size())));
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        result = deflate(&zs, Z_FULL_FLUSH);
+        if(result != Z_OK)
+            throw std::logic_error("deflate failed");
+        out.resize(zs.total_out);
+        deflateEnd(&zs);
+        return out;
+    }
+
+    void
+    doCorpus(
+        std::size_t size,
+        std::size_t repeat)
+    {
+        std::size_t constexpr trials = 3;
+        auto const c1 = corpus1(size);
+        auto const c2 = corpus2(size);
+        log <<
+            std::left << std::setw(10) << (std::to_string(size) + "B") <<
+            std::right << std::setw(12) << "Beast" << "     " <<
+            std::right << std::setw(12) << "ZLib" <<
+                std::endl;
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus1";
+            std::string out1;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out1 = doDeflateBeast(c1);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            std::string out2;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out2 = doDeflateZLib(c1);
+            BEAST_EXPECT(out1 == out2);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus2";
+            std::string out1;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out1 = doDeflateBeast(c2);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            std::string out2;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out2 = doDeflateZLib(c2);
+            BEAST_EXPECT(out1 == out2);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        log << std::endl;
+    }
+
+    void
+    doBench()
+    {
+        doCorpus(      16 * 1024, 512);
+        doCorpus(    1024 * 1024,   8);
+        doCorpus(8 * 1024 * 1024,   1);
+    }
+
+    void
+    run() override
+    {
+        doBench();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,zlib,deflate_stream);
+
+} // zlib
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/bench/zlib/inflate_stream.cpp b/src/boost/libs/beast/test/bench/zlib/inflate_stream.cpp
new file mode 100644
index 000000000..ea8d6d982
--- /dev/null
+++ b/src/boost/libs/beast/test/bench/zlib/inflate_stream.cpp
@@ -0,0 +1,244 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#include <boost/beast/core/string.hpp>
+#include <boost/beast/zlib/inflate_stream.hpp>
+#include <boost/beast/test/throughput.hpp>
+#include <boost/beast/_experimental/unit_test/dstream.hpp>
+#include <boost/beast/_experimental/unit_test/suite.hpp>
+#include <iomanip>
+#include <random>
+#include <string>
+
+#include "zlib-1.2.11/zlib.h"
+
+namespace boost {
+namespace beast {
+namespace zlib {
+
+class inflate_stream_test : public beast::unit_test::suite
+{
+public:
+    // Lots of repeats, limited char range
+    static
+    std::string
+    corpus1(std::size_t n)
+    {
+        static std::string const alphabet{
+            "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+        };
+        std::string s;
+        s.reserve(n + 5);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::size_t> d0{
+            0, alphabet.size() - 1};
+        std::uniform_int_distribution<std::size_t> d1{
+            1, 5};
+        while(s.size() < n)
+        {
+            auto const rep = d1(g);
+            auto const ch = alphabet[d0(g)];
+            s.insert(s.end(), rep, ch);
+        }
+        s.resize(n);
+        return s;
+    }
+
+    // Random data
+    static
+    std::string
+    corpus2(std::size_t n)
+    {
+        std::string s;
+        s.reserve(n);
+        std::mt19937 g;
+        std::uniform_int_distribution<std::uint32_t> d0{0, 255};
+        while(n--)
+            s.push_back(static_cast<char>(d0(g)));
+        return s;
+    }
+
+    static
+    std::string
+    compress(string_view const& in)
+    {
+        int result;
+        z_stream zs;
+        memset(&zs, 0, sizeof(zs));
+        result = deflateInit2(
+            &zs,
+            Z_DEFAULT_COMPRESSION,
+            Z_DEFLATED,
+            -15,
+            4,
+            Z_DEFAULT_STRATEGY);
+        if(result != Z_OK)
+            throw std::logic_error("deflateInit2 failed");
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        std::string out;
+        out.resize(deflateBound(&zs,
+            static_cast<uLong>(in.size())));
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        result = deflate(&zs, Z_FULL_FLUSH);
+        if(result != Z_OK)
+            throw std::logic_error("deflate failed");
+        out.resize(zs.total_out);
+        deflateEnd(&zs);
+        return out;
+    }
+
+    std::string
+    doInflateBeast(string_view const& in)
+    {
+        z_params zs;
+        std::string out;
+        inflate_stream is;
+        zs.next_in = &in[0];
+        zs.avail_in = in.size();
+        out.resize(in.size());
+        zs.next_out = &out[0];
+        zs.avail_out = out.size();
+        for(;;)
+        {
+            error_code ec;
+            is.write(zs, Flush::sync, ec);
+            if(ec)
+                throw std::logic_error("inflate_stream failed");
+            if(zs.avail_out > 0)
+                break;
+            out.resize(2 * zs.total_out);
+            zs.next_out = &out[zs.total_out];
+            zs.avail_out = out.size() - zs.total_out;
+        }
+        out.resize(zs.total_out);
+        return out;
+    }
+
+    std::string
+    doInflateZLib(string_view const& in)
+    {
+        int result;
+        z_stream zs;
+        std::string out;
+        memset(&zs, 0, sizeof(zs));
+        result = inflateInit2(&zs, -15);
+        zs.next_in = (Bytef*)in.data();
+        zs.avail_in = static_cast<uInt>(in.size());
+        out.resize(in.size());
+        zs.next_out = (Bytef*)&out[0];
+        zs.avail_out = static_cast<uInt>(out.size());
+        for(;;)
+        {
+            result = inflate(&zs, Z_SYNC_FLUSH);
+            if( result == Z_NEED_DICT ||
+                result == Z_DATA_ERROR ||
+                result == Z_MEM_ERROR)
+            {
+                throw std::logic_error("inflate failed");
+            }
+            if(zs.avail_out > 0)
+                break;
+            if(result == Z_STREAM_END)
+                break;
+            out.resize(2 * zs.total_out);
+            zs.next_out = (Bytef*)&out[zs.total_out];
+            zs.avail_out = static_cast<uInt>(
+                out.size() - zs.total_out);
+        }
+        out.resize(zs.total_out);
+        inflateEnd(&zs);
+        return out;
+    }
+
+    void
+    doCorpus(
+        std::size_t size,
+        std::size_t repeat)
+    {
+        std::size_t constexpr trials = 3;
+        std::uint64_t constexpr scale = 16;
+        auto const c1 = corpus1(size);
+        auto const c2 = corpus2(size * scale);
+        auto const in1 = compress(c1);
+        auto const in2 = compress(c2);
+        log <<
+            std::left << std::setw(10) << (std::to_string(size) + "B") <<
+            std::right << std::setw(12) << "Beast" << "     " <<
+            std::right << std::setw(12) << "ZLib" <<
+                std::endl;
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus1";
+            std::string out;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateBeast(in1);
+            BEAST_EXPECT(out == c1);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateZLib(in1);
+            BEAST_EXPECT(out == c1);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        for(std::size_t i = 0; i < trials; ++i)
+        {
+            test::timer t;
+            log << std::left << std::setw(10) << "corpus2";
+            std::string out;
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateBeast(in2);
+            BEAST_EXPECT(out == c2);
+            auto const t1 =
+                test::throughput(t.elapsed(), size * scale * repeat);
+            log << std::right << std::setw(12) << t1 << " B/s ";
+            for(std::size_t j = 0; j < repeat; ++j)
+                out = doInflateZLib(in2);
+            BEAST_EXPECT(out == c2);
+            auto const t2 =
+                test::throughput(t.elapsed(), size * scale * repeat);
+            log << std::right << std::setw(12) << t2 << " B/s";
+            log << std::right << std::setw(12) <<
+                unsigned(double(t1)*100/t2-100) << "%";
+            log << std::endl;
+        }
+        log << std::endl;
+    }
+
+    void
+    doBench()
+    {
+        doCorpus(  1 * 1024 * 1024, 64);
+        doCorpus(  4 * 1024 * 1024, 16);
+        doCorpus( 16 * 1024 * 1024,  8);
+    }
+
+    void
+    run() override
+    {
+        doBench();
+        pass();
+    }
+};
+
+BEAST_DEFINE_TESTSUITE(beast,zlib,inflate_stream);
+
+} // zlib
+} // beast
+} // boost
diff --git a/src/boost/libs/beast/test/example/CMakeLists.txt b/src/boost/libs/beast/test/example/CMakeLists.txt
new file mode 100644
index 000000000..00d48e8ee
--- /dev/null
+++ b/src/boost/libs/beast/test/example/CMakeLists.txt
@@ -0,0 +1,10 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+add_subdirectory (common)
diff --git a/src/boost/libs/beast/test/example/Jamfile b/src/boost/libs/beast/test/example/Jamfile
new file mode 100644
index 000000000..b8a3d14a5
--- /dev/null
+++ b/src/boost/libs/beast/test/example/Jamfile
@@ -0,0 +1,20 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+alias run-tests :
+    common//run-tests
+    ;
+
+alias fat-tests ;
+
+explicit fat-tests ;
+
+alias run-fat-tests : common//run-tests ;
+
+explicit run-fat-tests ;
diff --git a/src/boost/libs/beast/test/example/common/CMakeLists.txt b/src/boost/libs/beast/test/example/common/CMakeLists.txt
new file mode 100644
index 000000000..a2c6dfe13
--- /dev/null
+++ b/src/boost/libs/beast/test/example/common/CMakeLists.txt
@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+GroupSources (include/boost/beast beast)
+GroupSources (example/common common)
+GroupSources (test/extras/include/boost/beast extras)
+GroupSources (test/example/common "/")
+
+add_executable (tests-example-common
+    ${BOOST_BEAST_FILES}
+    ${COMMON_FILES}
+    ${EXTRAS_FILES}
+    Jamfile
+    root_certificates.cpp
+    server_certificate.cpp
+)
+
+target_link_libraries(tests-example-common
+    lib-asio
+    lib-asio-ssl
+    lib-beast
+    lib-test
+    )
+
+set_property(TARGET tests-example-common PROPERTY FOLDER "tests")
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/example/common/Jamfile b/src/boost/libs/beast/test/example/common/Jamfile
new file mode 100644
index 000000000..6ae40e513
--- /dev/null
+++ b/src/boost/libs/beast/test/example/common/Jamfile
@@ -0,0 +1,27 @@
+#
+# Copyright (c) 2016-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+# Official repository: https://github.com/boostorg/beast
+#
+
+local SOURCES =
+    root_certificates.cpp
+    server_certificate.cpp
+    ;
+
+local RUN_TESTS ;
+
+local libs =
+    /boost/beast//lib-asio-ssl
+    /boost/beast/test//lib-test
+    ;
+
+for local f in $(SOURCES)
+{
+    RUN_TESTS += [ run $(f) $(libs) ] ;
+}
+
+alias run-tests : $(RUN_TESTS) ;
diff --git a/src/boost/libs/beast/test/example/common/root_certificates.cpp b/src/boost/libs/beast/test/example/common/root_certificates.cpp
new file mode 100644
index 000000000..780d5ed66
--- /dev/null
+++ b/src/boost/libs/beast/test/example/common/root_certificates.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include "example/common/root_certificates.hpp"
diff --git a/src/boost/libs/beast/test/example/common/server_certificate.cpp b/src/boost/libs/beast/test/example/common/server_certificate.cpp
new file mode 100644
index 000000000..ffb349337
--- /dev/null
+++ b/src/boost/libs/beast/test/example/common/server_certificate.cpp
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// Test that header file is self-contained.
+#include "example/common/server_certificate.hpp"
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/CMakeLists.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/CMakeLists.txt
new file mode 100644
index 000000000..0fe939df6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/CMakeLists.txt
@@ -0,0 +1,249 @@
+cmake_minimum_required(VERSION 2.4.4)
+set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
+
+project(zlib C)
+
+set(VERSION "1.2.11")
+
+option(ASM686 "Enable building i686 assembly implementation")
+option(AMD64 "Enable building amd64 assembly implementation")
+
+set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
+set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
+set(INSTALL_INC_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")
+set(INSTALL_MAN_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Installation directory for manual pages")
+set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
+
+include(CheckTypeSize)
+include(CheckFunctionExists)
+include(CheckIncludeFile)
+include(CheckCSourceCompiles)
+enable_testing()
+
+check_include_file(sys/types.h HAVE_SYS_TYPES_H)
+check_include_file(stdint.h    HAVE_STDINT_H)
+check_include_file(stddef.h    HAVE_STDDEF_H)
+
+#
+# Check to see if we have large file support
+#
+set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
+# We add these other definitions here because CheckTypeSize.cmake
+# in CMake 2.4.x does not automatically do so and we want
+# compatibility with CMake 2.4.x.
+if(HAVE_SYS_TYPES_H)
+    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
+endif()
+if(HAVE_STDINT_H)
+    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
+endif()
+if(HAVE_STDDEF_H)
+    list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
+endif()
+check_type_size(off64_t OFF64_T)
+if(HAVE_OFF64_T)
+   add_definitions(-D_LARGEFILE64_SOURCE=1)
+endif()
+set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
+
+#
+# Check for fseeko
+#
+check_function_exists(fseeko HAVE_FSEEKO)
+if(NOT HAVE_FSEEKO)
+    add_definitions(-DNO_FSEEKO)
+endif()
+
+#
+# Check for unistd.h
+#
+check_include_file(unistd.h Z_HAVE_UNISTD_H)
+
+if(MSVC)
+    set(CMAKE_DEBUG_POSTFIX "d")
+    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
+    add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
+    include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+endif()
+
+if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
+    # If we're doing an out of source build and the user has a zconf.h
+    # in their source tree...
+    if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
+        message(STATUS "Renaming")
+        message(STATUS "    ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
+        message(STATUS "to 'zconf.h.included' because this file is included with zlib")
+        message(STATUS "but CMake generates it automatically in the build directory.")
+        file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
+  endif()
+endif()
+
+set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
+configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
+		${ZLIB_PC} @ONLY)
+configure_file(	${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
+		${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
+include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
+
+
+#============================================================================
+# zlib
+#============================================================================
+
+set(ZLIB_PUBLIC_HDRS
+    ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
+    zlib.h
+)
+set(ZLIB_PRIVATE_HDRS
+    crc32.h
+    deflate.h
+    gzguts.h
+    inffast.h
+    inffixed.h
+    inflate.h
+    inftrees.h
+    trees.h
+    zutil.h
+)
+set(ZLIB_SRCS
+    adler32.c
+    compress.c
+    crc32.c
+    deflate.c
+    gzclose.c
+    gzlib.c
+    gzread.c
+    gzwrite.c
+    inflate.c
+    infback.c
+    inftrees.c
+    inffast.c
+    trees.c
+    uncompr.c
+    zutil.c
+)
+
+if(NOT MINGW)
+    set(ZLIB_DLL_SRCS
+        win32/zlib1.rc # If present will override custom build rule below.
+    )
+endif()
+
+if(CMAKE_COMPILER_IS_GNUCC)
+    if(ASM686)
+        set(ZLIB_ASMS contrib/asm686/match.S)
+    elseif (AMD64)
+        set(ZLIB_ASMS contrib/amd64/amd64-match.S)
+    endif ()
+
+	if(ZLIB_ASMS)
+		add_definitions(-DASMV)
+		set_source_files_properties(${ZLIB_ASMS} PROPERTIES LANGUAGE C COMPILE_FLAGS -DNO_UNDERLINE)
+	endif()
+endif()
+
+if(MSVC)
+    if(ASM686)
+		ENABLE_LANGUAGE(ASM_MASM)
+        set(ZLIB_ASMS
+			contrib/masmx86/inffas32.asm
+			contrib/masmx86/match686.asm
+		)
+    elseif (AMD64)
+		ENABLE_LANGUAGE(ASM_MASM)
+        set(ZLIB_ASMS
+			contrib/masmx64/gvmat64.asm
+			contrib/masmx64/inffasx64.asm
+		)
+    endif()
+
+	if(ZLIB_ASMS)
+		add_definitions(-DASMV -DASMINF)
+	endif()
+endif()
+
+# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
+file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
+string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
+    "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
+
+if(MINGW)
+    # This gets us DLL resource information when compiling on MinGW.
+    if(NOT CMAKE_RC_COMPILER)
+        set(CMAKE_RC_COMPILER windres.exe)
+    endif()
+
+    add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
+                       COMMAND ${CMAKE_RC_COMPILER}
+                            -D GCC_WINDRES
+                            -I ${CMAKE_CURRENT_SOURCE_DIR}
+                            -I ${CMAKE_CURRENT_BINARY_DIR}
+                            -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
+                            -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
+    set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
+endif(MINGW)
+
+add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
+set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
+set_target_properties(zlib PROPERTIES SOVERSION 1)
+
+if(NOT CYGWIN)
+    # This property causes shared libraries on Linux to have the full version
+    # encoded into their final filename.  We disable this on Cygwin because
+    # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
+    # seems to be the default.
+    #
+    # This has no effect with MSVC, on that platform the version info for
+    # the DLL comes from the resource file win32/zlib1.rc
+    set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
+endif()
+
+if(UNIX)
+    # On unix-like platforms the library is almost always called libz
+   set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
+   if(NOT APPLE)
+     set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
+   endif()
+elseif(BUILD_SHARED_LIBS AND WIN32)
+    # Creates zlib1.dll when building shared library version
+    set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
+endif()
+
+if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
+    install(TARGETS zlib zlibstatic
+        RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
+        ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
+        LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
+endif()
+if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
+    install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${INSTALL_INC_DIR}")
+endif()
+if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
+    install(FILES zlib.3 DESTINATION "${INSTALL_MAN_DIR}/man3")
+endif()
+if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
+    install(FILES ${ZLIB_PC} DESTINATION "${INSTALL_PKGCONFIG_DIR}")
+endif()
+
+#============================================================================
+# Example binaries
+#============================================================================
+
+add_executable(example test/example.c)
+target_link_libraries(example zlib)
+add_test(example example)
+
+add_executable(minigzip test/minigzip.c)
+target_link_libraries(minigzip zlib)
+
+if(HAVE_OFF64_T)
+    add_executable(example64 test/example.c)
+    target_link_libraries(example64 zlib)
+    set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
+    add_test(example64 example64)
+
+    add_executable(minigzip64 test/minigzip.c)
+    target_link_libraries(minigzip64 zlib)
+    set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
+endif()
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/ChangeLog b/src/boost/libs/beast/test/extern/zlib-1.2.11/ChangeLog
new file mode 100644
index 000000000..30199a65a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/ChangeLog
@@ -0,0 +1,1515 @@
+
+                ChangeLog file for zlib
+
+Changes in 1.2.11 (15 Jan 2017)
+- Fix deflate stored bug when pulling last block from window
+- Permit immediate deflateParams changes before any deflate input
+
+Changes in 1.2.10 (2 Jan 2017)
+- Avoid warnings on snprintf() return value
+- Fix bug in deflate_stored() for zero-length input
+- Fix bug in gzwrite.c that produced corrupt gzip files
+- Remove files to be installed before copying them in Makefile.in
+- Add warnings when compiling with assembler code
+
+Changes in 1.2.9 (31 Dec 2016)
+- Fix contrib/minizip to permit unzipping with desktop API [Zouzou]
+- Improve contrib/blast to return unused bytes
+- Assure that gzoffset() is correct when appending
+- Improve compress() and uncompress() to support large lengths
+- Fix bug in test/example.c where error code not saved
+- Remedy Coverity warning [Randers-Pehrson]
+- Improve speed of gzprintf() in transparent mode
+- Fix inflateInit2() bug when windowBits is 16 or 32
+- Change DEBUG macro to ZLIB_DEBUG
+- Avoid uninitialized access by gzclose_w()
+- Allow building zlib outside of the source directory
+- Fix bug that accepted invalid zlib header when windowBits is zero
+- Fix gzseek() problem on MinGW due to buggy _lseeki64 there
+- Loop on write() calls in gzwrite.c in case of non-blocking I/O
+- Add --warn (-w) option to ./configure for more compiler warnings
+- Reject a window size of 256 bytes if not using the zlib wrapper
+- Fix bug when level 0 used with Z_HUFFMAN or Z_RLE
+- Add --debug (-d) option to ./configure to define ZLIB_DEBUG
+- Fix bugs in creating a very large gzip header
+- Add uncompress2() function, which returns the input size used
+- Assure that deflateParams() will not switch functions mid-block
+- Dramatically speed up deflation for level 0 (storing)
+- Add gzfread(), duplicating the interface of fread()
+- Add gzfwrite(), duplicating the interface of fwrite()
+- Add deflateGetDictionary() function
+- Use snprintf() for later versions of Microsoft C
+- Fix *Init macros to use z_ prefix when requested
+- Replace as400 with os400 for OS/400 support [Monnerat]
+- Add crc32_z() and adler32_z() functions with size_t lengths
+- Update Visual Studio project files [AraHaan]
+
+Changes in 1.2.8 (28 Apr 2013)
+- Update contrib/minizip/iowin32.c for Windows RT [Vollant]
+- Do not force Z_CONST for C++
+- Clean up contrib/vstudio [Roß]
+- Correct spelling error in zlib.h
+- Fix mixed line endings in contrib/vstudio
+
+Changes in 1.2.7.3 (13 Apr 2013)
+- Fix version numbers and DLL names in contrib/vstudio/*/zlib.rc
+
+Changes in 1.2.7.2 (13 Apr 2013)
+- Change check for a four-byte type back to hexadecimal
+- Fix typo in win32/Makefile.msc
+- Add casts in gzwrite.c for pointer differences
+
+Changes in 1.2.7.1 (24 Mar 2013)
+- Replace use of unsafe string functions with snprintf if available
+- Avoid including stddef.h on Windows for Z_SOLO compile [Niessink]
+- Fix gzgetc undefine when Z_PREFIX set [Turk]
+- Eliminate use of mktemp in Makefile (not always available)
+- Fix bug in 'F' mode for gzopen()
+- Add inflateGetDictionary() function
+- Correct comment in deflate.h
+- Use _snprintf for snprintf in Microsoft C
+- On Darwin, only use /usr/bin/libtool if libtool is not Apple
+- Delete "--version" file if created by "ar --version" [Richard G.]
+- Fix configure check for veracity of compiler error return codes
+- Fix CMake compilation of static lib for MSVC2010 x64
+- Remove unused variable in infback9.c
+- Fix argument checks in gzlog_compress() and gzlog_write()
+- Clean up the usage of z_const and respect const usage within zlib
+- Clean up examples/gzlog.[ch] comparisons of different types
+- Avoid shift equal to bits in type (caused endless loop)
+- Fix uninitialized value bug in gzputc() introduced by const patches
+- Fix memory allocation error in examples/zran.c [Nor]
+- Fix bug where gzopen(), gzclose() would write an empty file
+- Fix bug in gzclose() when gzwrite() runs out of memory
+- Check for input buffer malloc failure in examples/gzappend.c
+- Add note to contrib/blast to use binary mode in stdio
+- Fix comparisons of differently signed integers in contrib/blast
+- Check for invalid code length codes in contrib/puff
+- Fix serious but very rare decompression bug in inftrees.c
+- Update inflateBack() comments, since inflate() can be faster
+- Use underscored I/O function names for WINAPI_FAMILY
+- Add _tr_flush_bits to the external symbols prefixed by --zprefix
+- Add contrib/vstudio/vc10 pre-build step for static only
+- Quote --version-script argument in CMakeLists.txt
+- Don't specify --version-script on Apple platforms in CMakeLists.txt
+- Fix casting error in contrib/testzlib/testzlib.c
+- Fix types in contrib/minizip to match result of get_crc_table()
+- Simplify contrib/vstudio/vc10 with 'd' suffix
+- Add TOP support to win32/Makefile.msc
+- Suport i686 and amd64 assembler builds in CMakeLists.txt
+- Fix typos in the use of _LARGEFILE64_SOURCE in zconf.h
+- Add vc11 and vc12 build files to contrib/vstudio
+- Add gzvprintf() as an undocumented function in zlib
+- Fix configure for Sun shell
+- Remove runtime check in configure for four-byte integer type
+- Add casts and consts to ease user conversion to C++
+- Add man pages for minizip and miniunzip
+- In Makefile uninstall, don't rm if preceding cd fails
+- Do not return Z_BUF_ERROR if deflateParam() has nothing to write
+
+Changes in 1.2.7 (2 May 2012)
+- Replace use of memmove() with a simple copy for portability
+- Test for existence of strerror
+- Restore gzgetc_ for backward compatibility with 1.2.6
+- Fix build with non-GNU make on Solaris
+- Require gcc 4.0 or later on Mac OS X to use the hidden attribute
+- Include unistd.h for Watcom C
+- Use __WATCOMC__ instead of __WATCOM__
+- Do not use the visibility attribute if NO_VIZ defined
+- Improve the detection of no hidden visibility attribute
+- Avoid using __int64 for gcc or solo compilation
+- Cast to char * in gzprintf to avoid warnings [Zinser]
+- Fix make_vms.com for VAX [Zinser]
+- Don't use library or built-in byte swaps
+- Simplify test and use of gcc hidden attribute
+- Fix bug in gzclose_w() when gzwrite() fails to allocate memory
+- Add "x" (O_EXCL) and "e" (O_CLOEXEC) modes support to gzopen()
+- Fix bug in test/minigzip.c for configure --solo
+- Fix contrib/vstudio project link errors [Mohanathas]
+- Add ability to choose the builder in make_vms.com [Schweda]
+- Add DESTDIR support to mingw32 win32/Makefile.gcc
+- Fix comments in win32/Makefile.gcc for proper usage
+- Allow overriding the default install locations for cmake
+- Generate and install the pkg-config file with cmake
+- Build both a static and a shared version of zlib with cmake
+- Include version symbols for cmake builds
+- If using cmake with MSVC, add the source directory to the includes
+- Remove unneeded EXTRA_CFLAGS from win32/Makefile.gcc [Truta]
+- Move obsolete emx makefile to old [Truta]
+- Allow the use of -Wundef when compiling or using zlib
+- Avoid the use of the -u option with mktemp
+- Improve inflate() documentation on the use of Z_FINISH
+- Recognize clang as gcc
+- Add gzopen_w() in Windows for wide character path names
+- Rename zconf.h in CMakeLists.txt to move it out of the way
+- Add source directory in CMakeLists.txt for building examples
+- Look in build directory for zlib.pc in CMakeLists.txt
+- Remove gzflags from zlibvc.def in vc9 and vc10
+- Fix contrib/minizip compilation in the MinGW environment
+- Update ./configure for Solaris, support --64 [Mooney]
+- Remove -R. from Solaris shared build (possible security issue)
+- Avoid race condition for parallel make (-j) running example
+- Fix type mismatch between get_crc_table() and crc_table
+- Fix parsing of version with "-" in CMakeLists.txt [Snider, Ziegler]
+- Fix the path to zlib.map in CMakeLists.txt
+- Force the native libtool in Mac OS X to avoid GNU libtool [Beebe]
+- Add instructions to win32/Makefile.gcc for shared install [Torri]
+
+Changes in 1.2.6.1 (12 Feb 2012)
+- Avoid the use of the Objective-C reserved name "id"
+- Include io.h in gzguts.h for Microsoft compilers
+- Fix problem with ./configure --prefix and gzgetc macro
+- Include gz_header definition when compiling zlib solo
+- Put gzflags() functionality back in zutil.c
+- Avoid library header include in crc32.c for Z_SOLO
+- Use name in GCC_CLASSIC as C compiler for coverage testing, if set
+- Minor cleanup in contrib/minizip/zip.c [Vollant]
+- Update make_vms.com [Zinser]
+- Remove unnecessary gzgetc_ function
+- Use optimized byte swap operations for Microsoft and GNU [Snyder]
+- Fix minor typo in zlib.h comments [Rzesniowiecki]
+
+Changes in 1.2.6 (29 Jan 2012)
+- Update the Pascal interface in contrib/pascal
+- Fix function numbers for gzgetc_ in zlibvc.def files
+- Fix configure.ac for contrib/minizip [Schiffer]
+- Fix large-entry detection in minizip on 64-bit systems [Schiffer]
+- Have ./configure use the compiler return code for error indication
+- Fix CMakeLists.txt for cross compilation [McClure]
+- Fix contrib/minizip/zip.c for 64-bit architectures [Dalsnes]
+- Fix compilation of contrib/minizip on FreeBSD [Marquez]
+- Correct suggested usages in win32/Makefile.msc [Shachar, Horvath]
+- Include io.h for Turbo C / Borland C on all platforms [Truta]
+- Make version explicit in contrib/minizip/configure.ac [Bosmans]
+- Avoid warning for no encryption in contrib/minizip/zip.c [Vollant]
+- Minor cleanup up contrib/minizip/unzip.c [Vollant]
+- Fix bug when compiling minizip with C++ [Vollant]
+- Protect for long name and extra fields in contrib/minizip [Vollant]
+- Avoid some warnings in contrib/minizip [Vollant]
+- Add -I../.. -L../.. to CFLAGS for minizip and miniunzip
+- Add missing libs to minizip linker command
+- Add support for VPATH builds in contrib/minizip
+- Add an --enable-demos option to contrib/minizip/configure
+- Add the generation of configure.log by ./configure
+- Exit when required parameters not provided to win32/Makefile.gcc
+- Have gzputc return the character written instead of the argument
+- Use the -m option on ldconfig for BSD systems [Tobias]
+- Correct in zlib.map when deflateResetKeep was added
+
+Changes in 1.2.5.3 (15 Jan 2012)
+- Restore gzgetc function for binary compatibility
+- Do not use _lseeki64 under Borland C++ [Truta]
+- Update win32/Makefile.msc to build test/*.c [Truta]
+- Remove old/visualc6 given CMakefile and other alternatives
+- Update AS400 build files and documentation [Monnerat]
+- Update win32/Makefile.gcc to build test/*.c [Truta]
+- Permit stronger flushes after Z_BLOCK flushes
+- Avoid extraneous empty blocks when doing empty flushes
+- Permit Z_NULL arguments to deflatePending
+- Allow deflatePrime() to insert bits in the middle of a stream
+- Remove second empty static block for Z_PARTIAL_FLUSH
+- Write out all of the available bits when using Z_BLOCK
+- Insert the first two strings in the hash table after a flush
+
+Changes in 1.2.5.2 (17 Dec 2011)
+- fix ld error: unable to find version dependency 'ZLIB_1.2.5'
+- use relative symlinks for shared libs
+- Avoid searching past window for Z_RLE strategy
+- Assure that high-water mark initialization is always applied in deflate
+- Add assertions to fill_window() in deflate.c to match comments
+- Update python link in README
+- Correct spelling error in gzread.c
+- Fix bug in gzgets() for a concatenated empty gzip stream
+- Correct error in comment for gz_make()
+- Change gzread() and related to ignore junk after gzip streams
+- Allow gzread() and related to continue after gzclearerr()
+- Allow gzrewind() and gzseek() after a premature end-of-file
+- Simplify gzseek() now that raw after gzip is ignored
+- Change gzgetc() to a macro for speed (~40% speedup in testing)
+- Fix gzclose() to return the actual error last encountered
+- Always add large file support for windows
+- Include zconf.h for windows large file support
+- Include zconf.h.cmakein for windows large file support
+- Update zconf.h.cmakein on make distclean
+- Merge vestigial vsnprintf determination from zutil.h to gzguts.h
+- Clarify how gzopen() appends in zlib.h comments
+- Correct documentation of gzdirect() since junk at end now ignored
+- Add a transparent write mode to gzopen() when 'T' is in the mode
+- Update python link in zlib man page
+- Get inffixed.h and MAKEFIXED result to match
+- Add a ./config --solo option to make zlib subset with no library use
+- Add undocumented inflateResetKeep() function for CAB file decoding
+- Add --cover option to ./configure for gcc coverage testing
+- Add #define ZLIB_CONST option to use const in the z_stream interface
+- Add comment to gzdopen() in zlib.h to use dup() when using fileno()
+- Note behavior of uncompress() to provide as much data as it can
+- Add files in contrib/minizip to aid in building libminizip
+- Split off AR options in Makefile.in and configure
+- Change ON macro to Z_ARG to avoid application conflicts
+- Facilitate compilation with Borland C++ for pragmas and vsnprintf
+- Include io.h for Turbo C / Borland C++
+- Move example.c and minigzip.c to test/
+- Simplify incomplete code table filling in inflate_table()
+- Remove code from inflate.c and infback.c that is impossible to execute
+- Test the inflate code with full coverage
+- Allow deflateSetDictionary, inflateSetDictionary at any time (in raw)
+- Add deflateResetKeep and fix inflateResetKeep to retain dictionary
+- Fix gzwrite.c to accommodate reduced memory zlib compilation
+- Have inflate() with Z_FINISH avoid the allocation of a window
+- Do not set strm->adler when doing raw inflate
+- Fix gzeof() to behave just like feof() when read is not past end of file
+- Fix bug in gzread.c when end-of-file is reached
+- Avoid use of Z_BUF_ERROR in gz* functions except for premature EOF
+- Document gzread() capability to read concurrently written files
+- Remove hard-coding of resource compiler in CMakeLists.txt [Blammo]
+
+Changes in 1.2.5.1 (10 Sep 2011)
+- Update FAQ entry on shared builds (#13)
+- Avoid symbolic argument to chmod in Makefile.in
+- Fix bug and add consts in contrib/puff [Oberhumer]
+- Update contrib/puff/zeros.raw test file to have all block types
+- Add full coverage test for puff in contrib/puff/Makefile
+- Fix static-only-build install in Makefile.in
+- Fix bug in unzGetCurrentFileInfo() in contrib/minizip [Kuno]
+- Add libz.a dependency to shared in Makefile.in for parallel builds
+- Spell out "number" (instead of "nb") in zlib.h for total_in, total_out
+- Replace $(...) with `...` in configure for non-bash sh [Bowler]
+- Add darwin* to Darwin* and solaris* to SunOS\ 5* in configure [Groffen]
+- Add solaris* to Linux* in configure to allow gcc use [Groffen]
+- Add *bsd* to Linux* case in configure [Bar-Lev]
+- Add inffast.obj to dependencies in win32/Makefile.msc
+- Correct spelling error in deflate.h [Kohler]
+- Change libzdll.a again to libz.dll.a (!) in win32/Makefile.gcc
+- Add test to configure for GNU C looking for gcc in output of $cc -v
+- Add zlib.pc generation to win32/Makefile.gcc [Weigelt]
+- Fix bug in zlib.h for _FILE_OFFSET_BITS set and _LARGEFILE64_SOURCE not
+- Add comment in zlib.h that adler32_combine with len2 < 0 makes no sense
+- Make NO_DIVIDE option in adler32.c much faster (thanks to John Reiser)
+- Make stronger test in zconf.h to include unistd.h for LFS
+- Apply Darwin patches for 64-bit file offsets to contrib/minizip [Slack]
+- Fix zlib.h LFS support when Z_PREFIX used
+- Add updated as400 support (removed from old) [Monnerat]
+- Avoid deflate sensitivity to volatile input data
+- Avoid division in adler32_combine for NO_DIVIDE
+- Clarify the use of Z_FINISH with deflateBound() amount of space
+- Set binary for output file in puff.c
+- Use u4 type for crc_table to avoid conversion warnings
+- Apply casts in zlib.h to avoid conversion warnings
+- Add OF to prototypes for adler32_combine_ and crc32_combine_ [Miller]
+- Improve inflateSync() documentation to note indeterminancy
+- Add deflatePending() function to return the amount of pending output
+- Correct the spelling of "specification" in FAQ [Randers-Pehrson]
+- Add a check in configure for stdarg.h, use for gzprintf()
+- Check that pointers fit in ints when gzprint() compiled old style
+- Add dummy name before $(SHAREDLIBV) in Makefile [Bar-Lev, Bowler]
+- Delete line in configure that adds -L. libz.a to LDFLAGS [Weigelt]
+- Add debug records in assmebler code [Londer]
+- Update RFC references to use http://tools.ietf.org/html/... [Li]
+- Add --archs option, use of libtool to configure for Mac OS X [Borstel]
+
+Changes in 1.2.5 (19 Apr 2010)
+- Disable visibility attribute in win32/Makefile.gcc [Bar-Lev]
+- Default to libdir as sharedlibdir in configure [Nieder]
+- Update copyright dates on modified source files
+- Update trees.c to be able to generate modified trees.h
+- Exit configure for MinGW, suggesting win32/Makefile.gcc
+- Check for NULL path in gz_open [Homurlu]
+
+Changes in 1.2.4.5 (18 Apr 2010)
+- Set sharedlibdir in configure [Torok]
+- Set LDFLAGS in Makefile.in [Bar-Lev]
+- Avoid mkdir objs race condition in Makefile.in [Bowler]
+- Add ZLIB_INTERNAL in front of internal inter-module functions and arrays
+- Define ZLIB_INTERNAL to hide internal functions and arrays for GNU C
+- Don't use hidden attribute when it is a warning generator (e.g. Solaris)
+
+Changes in 1.2.4.4 (18 Apr 2010)
+- Fix CROSS_PREFIX executable testing, CHOST extract, mingw* [Torok]
+- Undefine _LARGEFILE64_SOURCE in zconf.h if it is zero, but not if empty
+- Try to use bash or ksh regardless of functionality of /bin/sh
+- Fix configure incompatibility with NetBSD sh
+- Remove attempt to run under bash or ksh since have better NetBSD fix
+- Fix win32/Makefile.gcc for MinGW [Bar-Lev]
+- Add diagnostic messages when using CROSS_PREFIX in configure
+- Added --sharedlibdir option to configure [Weigelt]
+- Use hidden visibility attribute when available [Frysinger]
+
+Changes in 1.2.4.3 (10 Apr 2010)
+- Only use CROSS_PREFIX in configure for ar and ranlib if they exist
+- Use CROSS_PREFIX for nm [Bar-Lev]
+- Assume _LARGEFILE64_SOURCE defined is equivalent to true
+- Avoid use of undefined symbols in #if with && and ||
+- Make *64 prototypes in gzguts.h consistent with functions
+- Add -shared load option for MinGW in configure [Bowler]
+- Move z_off64_t to public interface, use instead of off64_t
+- Remove ! from shell test in configure (not portable to Solaris)
+- Change +0 macro tests to -0 for possibly increased portability
+
+Changes in 1.2.4.2 (9 Apr 2010)
+- Add consistent carriage returns to readme.txt's in masmx86 and masmx64
+- Really provide prototypes for *64 functions when building without LFS
+- Only define unlink() in minigzip.c if unistd.h not included
+- Update README to point to contrib/vstudio project files
+- Move projects/vc6 to old/ and remove projects/
+- Include stdlib.h in minigzip.c for setmode() definition under WinCE
+- Clean up assembler builds in win32/Makefile.msc [Rowe]
+- Include sys/types.h for Microsoft for off_t definition
+- Fix memory leak on error in gz_open()
+- Symbolize nm as $NM in configure [Weigelt]
+- Use TEST_LDSHARED instead of LDSHARED to link test programs [Weigelt]
+- Add +0 to _FILE_OFFSET_BITS and _LFS64_LARGEFILE in case not defined
+- Fix bug in gzeof() to take into account unused input data
+- Avoid initialization of structures with variables in puff.c
+- Updated win32/README-WIN32.txt [Rowe]
+
+Changes in 1.2.4.1 (28 Mar 2010)
+- Remove the use of [a-z] constructs for sed in configure [gentoo 310225]
+- Remove $(SHAREDLIB) from LIBS in Makefile.in [Creech]
+- Restore "for debugging" comment on sprintf() in gzlib.c
+- Remove fdopen for MVS from gzguts.h
+- Put new README-WIN32.txt in win32 [Rowe]
+- Add check for shell to configure and invoke another shell if needed
+- Fix big fat stinking bug in gzseek() on uncompressed files
+- Remove vestigial F_OPEN64 define in zutil.h
+- Set and check the value of _LARGEFILE_SOURCE and _LARGEFILE64_SOURCE
+- Avoid errors on non-LFS systems when applications define LFS macros
+- Set EXE to ".exe" in configure for MINGW [Kahle]
+- Match crc32() in crc32.c exactly to the prototype in zlib.h [Sherrill]
+- Add prefix for cross-compilation in win32/makefile.gcc [Bar-Lev]
+- Add DLL install in win32/makefile.gcc [Bar-Lev]
+- Allow Linux* or linux* from uname in configure [Bar-Lev]
+- Allow ldconfig to be redefined in configure and Makefile.in [Bar-Lev]
+- Add cross-compilation prefixes to configure [Bar-Lev]
+- Match type exactly in gz_load() invocation in gzread.c
+- Match type exactly of zcalloc() in zutil.c to zlib.h alloc_func
+- Provide prototypes for *64 functions when building zlib without LFS
+- Don't use -lc when linking shared library on MinGW
+- Remove errno.h check in configure and vestigial errno code in zutil.h
+
+Changes in 1.2.4 (14 Mar 2010)
+- Fix VER3 extraction in configure for no fourth subversion
+- Update zlib.3, add docs to Makefile.in to make .pdf out of it
+- Add zlib.3.pdf to distribution
+- Don't set error code in gzerror() if passed pointer is NULL
+- Apply destination directory fixes to CMakeLists.txt [Lowman]
+- Move #cmakedefine's to a new zconf.in.cmakein
+- Restore zconf.h for builds that don't use configure or cmake
+- Add distclean to dummy Makefile for convenience
+- Update and improve INDEX, README, and FAQ
+- Update CMakeLists.txt for the return of zconf.h [Lowman]
+- Update contrib/vstudio/vc9 and vc10 [Vollant]
+- Change libz.dll.a back to libzdll.a in win32/Makefile.gcc
+- Apply license and readme changes to contrib/asm686 [Raiter]
+- Check file name lengths and add -c option in minigzip.c [Li]
+- Update contrib/amd64 and contrib/masmx86/ [Vollant]
+- Avoid use of "eof" parameter in trees.c to not shadow library variable
+- Update make_vms.com for removal of zlibdefs.h [Zinser]
+- Update assembler code and vstudio projects in contrib [Vollant]
+- Remove outdated assembler code contrib/masm686 and contrib/asm586
+- Remove old vc7 and vc8 from contrib/vstudio
+- Update win32/Makefile.msc, add ZLIB_VER_SUBREVISION [Rowe]
+- Fix memory leaks in gzclose_r() and gzclose_w(), file leak in gz_open()
+- Add contrib/gcc_gvmat64 for longest_match and inflate_fast [Vollant]
+- Remove *64 functions from win32/zlib.def (they're not 64-bit yet)
+- Fix bug in void-returning vsprintf() case in gzwrite.c
+- Fix name change from inflate.h in contrib/inflate86/inffas86.c
+- Check if temporary file exists before removing in make_vms.com [Zinser]
+- Fix make install and uninstall for --static option
+- Fix usage of _MSC_VER in gzguts.h and zutil.h [Truta]
+- Update readme.txt in contrib/masmx64 and masmx86 to assemble
+
+Changes in 1.2.3.9 (21 Feb 2010)
+- Expunge gzio.c
+- Move as400 build information to old
+- Fix updates in contrib/minizip and contrib/vstudio
+- Add const to vsnprintf test in configure to avoid warnings [Weigelt]
+- Delete zconf.h (made by configure) [Weigelt]
+- Change zconf.in.h to zconf.h.in per convention [Weigelt]
+- Check for NULL buf in gzgets()
+- Return empty string for gzgets() with len == 1 (like fgets())
+- Fix description of gzgets() in zlib.h for end-of-file, NULL return
+- Update minizip to 1.1 [Vollant]
+- Avoid MSVC loss of data warnings in gzread.c, gzwrite.c
+- Note in zlib.h that gzerror() should be used to distinguish from EOF
+- Remove use of snprintf() from gzlib.c
+- Fix bug in gzseek()
+- Update contrib/vstudio, adding vc9 and vc10 [Kuno, Vollant]
+- Fix zconf.h generation in CMakeLists.txt [Lowman]
+- Improve comments in zconf.h where modified by configure
+
+Changes in 1.2.3.8 (13 Feb 2010)
+- Clean up text files (tabs, trailing whitespace, etc.) [Oberhumer]
+- Use z_off64_t in gz_zero() and gz_skip() to match state->skip
+- Avoid comparison problem when sizeof(int) == sizeof(z_off64_t)
+- Revert to Makefile.in from 1.2.3.6 (live with the clutter)
+- Fix missing error return in gzflush(), add zlib.h note
+- Add *64 functions to zlib.map [Levin]
+- Fix signed/unsigned comparison in gz_comp()
+- Use SFLAGS when testing shared linking in configure
+- Add --64 option to ./configure to use -m64 with gcc
+- Fix ./configure --help to correctly name options
+- Have make fail if a test fails [Levin]
+- Avoid buffer overrun in contrib/masmx64/gvmat64.asm [Simpson]
+- Remove assembler object files from contrib
+
+Changes in 1.2.3.7 (24 Jan 2010)
+- Always gzopen() with O_LARGEFILE if available
+- Fix gzdirect() to work immediately after gzopen() or gzdopen()
+- Make gzdirect() more precise when the state changes while reading
+- Improve zlib.h documentation in many places
+- Catch memory allocation failure in gz_open()
+- Complete close operation if seek forward in gzclose_w() fails
+- Return Z_ERRNO from gzclose_r() if close() fails
+- Return Z_STREAM_ERROR instead of EOF for gzclose() being passed NULL
+- Return zero for gzwrite() errors to match zlib.h description
+- Return -1 on gzputs() error to match zlib.h description
+- Add zconf.in.h to allow recovery from configure modification [Weigelt]
+- Fix static library permissions in Makefile.in [Weigelt]
+- Avoid warnings in configure tests that hide functionality [Weigelt]
+- Add *BSD and DragonFly to Linux case in configure [gentoo 123571]
+- Change libzdll.a to libz.dll.a in win32/Makefile.gcc [gentoo 288212]
+- Avoid access of uninitialized data for first inflateReset2 call [Gomes]
+- Keep object files in subdirectories to reduce the clutter somewhat
+- Remove default Makefile and zlibdefs.h, add dummy Makefile
+- Add new external functions to Z_PREFIX, remove duplicates, z_z_ -> z_
+- Remove zlibdefs.h completely -- modify zconf.h instead
+
+Changes in 1.2.3.6 (17 Jan 2010)
+- Avoid void * arithmetic in gzread.c and gzwrite.c
+- Make compilers happier with const char * for gz_error message
+- Avoid unused parameter warning in inflate.c
+- Avoid signed-unsigned comparison warning in inflate.c
+- Indent #pragma's for traditional C
+- Fix usage of strwinerror() in glib.c, change to gz_strwinerror()
+- Correct email address in configure for system options
+- Update make_vms.com and add make_vms.com to contrib/minizip [Zinser]
+- Update zlib.map [Brown]
+- Fix Makefile.in for Solaris 10 make of example64 and minizip64 [Torok]
+- Apply various fixes to CMakeLists.txt [Lowman]
+- Add checks on len in gzread() and gzwrite()
+- Add error message for no more room for gzungetc()
+- Remove zlib version check in gzwrite()
+- Defer compression of gzprintf() result until need to
+- Use snprintf() in gzdopen() if available
+- Remove USE_MMAP configuration determination (only used by minigzip)
+- Remove examples/pigz.c (available separately)
+- Update examples/gun.c to 1.6
+
+Changes in 1.2.3.5 (8 Jan 2010)
+- Add space after #if in zutil.h for some compilers
+- Fix relatively harmless bug in deflate_fast() [Exarevsky]
+- Fix same problem in deflate_slow()
+- Add $(SHAREDLIBV) to LIBS in Makefile.in [Brown]
+- Add deflate_rle() for faster Z_RLE strategy run-length encoding
+- Add deflate_huff() for faster Z_HUFFMAN_ONLY encoding
+- Change name of "write" variable in inffast.c to avoid library collisions
+- Fix premature EOF from gzread() in gzio.c [Brown]
+- Use zlib header window size if windowBits is 0 in inflateInit2()
+- Remove compressBound() call in deflate.c to avoid linking compress.o
+- Replace use of errno in gz* with functions, support WinCE [Alves]
+- Provide alternative to perror() in minigzip.c for WinCE [Alves]
+- Don't use _vsnprintf on later versions of MSVC [Lowman]
+- Add CMake build script and input file [Lowman]
+- Update contrib/minizip to 1.1 [Svensson, Vollant]
+- Moved nintendods directory from contrib to .
+- Replace gzio.c with a new set of routines with the same functionality
+- Add gzbuffer(), gzoffset(), gzclose_r(), gzclose_w() as part of above
+- Update contrib/minizip to 1.1b
+- Change gzeof() to return 0 on error instead of -1 to agree with zlib.h
+
+Changes in 1.2.3.4 (21 Dec 2009)
+- Use old school .SUFFIXES in Makefile.in for FreeBSD compatibility
+- Update comments in configure and Makefile.in for default --shared
+- Fix test -z's in configure [Marquess]
+- Build examplesh and minigzipsh when not testing
+- Change NULL's to Z_NULL's in deflate.c and in comments in zlib.h
+- Import LDFLAGS from the environment in configure
+- Fix configure to populate SFLAGS with discovered CFLAGS options
+- Adapt make_vms.com to the new Makefile.in [Zinser]
+- Add zlib2ansi script for C++ compilation [Marquess]
+- Add _FILE_OFFSET_BITS=64 test to make test (when applicable)
+- Add AMD64 assembler code for longest match to contrib [Teterin]
+- Include options from $SFLAGS when doing $LDSHARED
+- Simplify 64-bit file support by introducing z_off64_t type
+- Make shared object files in objs directory to work around old Sun cc
+- Use only three-part version number for Darwin shared compiles
+- Add rc option to ar in Makefile.in for when ./configure not run
+- Add -WI,-rpath,. to LDFLAGS for OSF 1 V4*
+- Set LD_LIBRARYN32_PATH for SGI IRIX shared compile
+- Protect against _FILE_OFFSET_BITS being defined when compiling zlib
+- Rename Makefile.in targets allstatic to static and allshared to shared
+- Fix static and shared Makefile.in targets to be independent
+- Correct error return bug in gz_open() by setting state [Brown]
+- Put spaces before ;;'s in configure for better sh compatibility
+- Add pigz.c (parallel implementation of gzip) to examples/
+- Correct constant in crc32.c to UL [Leventhal]
+- Reject negative lengths in crc32_combine()
+- Add inflateReset2() function to work like inflateEnd()/inflateInit2()
+- Include sys/types.h for _LARGEFILE64_SOURCE [Brown]
+- Correct typo in doc/algorithm.txt [Janik]
+- Fix bug in adler32_combine() [Zhu]
+- Catch missing-end-of-block-code error in all inflates and in puff
+    Assures that random input to inflate eventually results in an error
+- Added enough.c (calculation of ENOUGH for inftrees.h) to examples/
+- Update ENOUGH and its usage to reflect discovered bounds
+- Fix gzerror() error report on empty input file [Brown]
+- Add ush casts in trees.c to avoid pedantic runtime errors
+- Fix typo in zlib.h uncompress() description [Reiss]
+- Correct inflate() comments with regard to automatic header detection
+- Remove deprecation comment on Z_PARTIAL_FLUSH (it stays)
+- Put new version of gzlog (2.0) in examples with interruption recovery
+- Add puff compile option to permit invalid distance-too-far streams
+- Add puff TEST command options, ability to read piped input
+- Prototype the *64 functions in zlib.h when _FILE_OFFSET_BITS == 64, but
+  _LARGEFILE64_SOURCE not defined
+- Fix Z_FULL_FLUSH to truly erase the past by resetting s->strstart
+- Fix deflateSetDictionary() to use all 32K for output consistency
+- Remove extraneous #define MIN_LOOKAHEAD in deflate.c (in deflate.h)
+- Clear bytes after deflate lookahead to avoid use of uninitialized data
+- Change a limit in inftrees.c to be more transparent to Coverity Prevent
+- Update win32/zlib.def with exported symbols from zlib.h
+- Correct spelling errors in zlib.h [Willem, Sobrado]
+- Allow Z_BLOCK for deflate() to force a new block
+- Allow negative bits in inflatePrime() to delete existing bit buffer
+- Add Z_TREES flush option to inflate() to return at end of trees
+- Add inflateMark() to return current state information for random access
+- Add Makefile for NintendoDS to contrib [Costa]
+- Add -w in configure compile tests to avoid spurious warnings [Beucler]
+- Fix typos in zlib.h comments for deflateSetDictionary()
+- Fix EOF detection in transparent gzread() [Maier]
+
+Changes in 1.2.3.3 (2 October 2006)
+- Make --shared the default for configure, add a --static option
+- Add compile option to permit invalid distance-too-far streams
+- Add inflateUndermine() function which is required to enable above
+- Remove use of "this" variable name for C++ compatibility [Marquess]
+- Add testing of shared library in make test, if shared library built
+- Use ftello() and fseeko() if available instead of ftell() and fseek()
+- Provide two versions of all functions that use the z_off_t type for
+  binary compatibility -- a normal version and a 64-bit offset version,
+  per the Large File Support Extension when _LARGEFILE64_SOURCE is
+  defined; use the 64-bit versions by default when _FILE_OFFSET_BITS
+  is defined to be 64
+- Add a --uname= option to configure to perhaps help with cross-compiling
+
+Changes in 1.2.3.2 (3 September 2006)
+- Turn off silly Borland warnings [Hay]
+- Use off64_t and define _LARGEFILE64_SOURCE when present
+- Fix missing dependency on inffixed.h in Makefile.in
+- Rig configure --shared to build both shared and static [Teredesai, Truta]
+- Remove zconf.in.h and instead create a new zlibdefs.h file
+- Fix contrib/minizip/unzip.c non-encrypted after encrypted [Vollant]
+- Add treebuild.xml (see http://treebuild.metux.de/) [Weigelt]
+
+Changes in 1.2.3.1 (16 August 2006)
+- Add watcom directory with OpenWatcom make files [Daniel]
+- Remove #undef of FAR in zconf.in.h for MVS [Fedtke]
+- Update make_vms.com [Zinser]
+- Use -fPIC for shared build in configure [Teredesai, Nicholson]
+- Use only major version number for libz.so on IRIX and OSF1 [Reinholdtsen]
+- Use fdopen() (not _fdopen()) for Interix in zutil.h [Bäck]
+- Add some FAQ entries about the contrib directory
+- Update the MVS question in the FAQ
+- Avoid extraneous reads after EOF in gzio.c [Brown]
+- Correct spelling of "successfully" in gzio.c [Randers-Pehrson]
+- Add comments to zlib.h about gzerror() usage [Brown]
+- Set extra flags in gzip header in gzopen() like deflate() does
+- Make configure options more compatible with double-dash conventions
+  [Weigelt]
+- Clean up compilation under Solaris SunStudio cc [Rowe, Reinholdtsen]
+- Fix uninstall target in Makefile.in [Truta]
+- Add pkgconfig support [Weigelt]
+- Use $(DESTDIR) macro in Makefile.in [Reinholdtsen, Weigelt]
+- Replace set_data_type() with a more accurate detect_data_type() in
+  trees.c, according to the txtvsbin.txt document [Truta]
+- Swap the order of #include <stdio.h> and #include "zlib.h" in
+  gzio.c, example.c and minigzip.c [Truta]
+- Shut up annoying VS2005 warnings about standard C deprecation [Rowe,
+  Truta] (where?)
+- Fix target "clean" from win32/Makefile.bor [Truta]
+- Create .pdb and .manifest files in win32/makefile.msc [Ziegler, Rowe]
+- Update zlib www home address in win32/DLL_FAQ.txt [Truta]
+- Update contrib/masmx86/inffas32.asm for VS2005 [Vollant, Van Wassenhove]
+- Enable browse info in the "Debug" and "ASM Debug" configurations in
+  the Visual C++ 6 project, and set (non-ASM) "Debug" as default [Truta]
+- Add pkgconfig support [Weigelt]
+- Add ZLIB_VER_MAJOR, ZLIB_VER_MINOR and ZLIB_VER_REVISION in zlib.h,
+  for use in win32/zlib1.rc [Polushin, Rowe, Truta]
+- Add a document that explains the new text detection scheme to
+  doc/txtvsbin.txt [Truta]
+- Add rfc1950.txt, rfc1951.txt and rfc1952.txt to doc/ [Truta]
+- Move algorithm.txt into doc/ [Truta]
+- Synchronize FAQ with website
+- Fix compressBound(), was low for some pathological cases [Fearnley]
+- Take into account wrapper variations in deflateBound()
+- Set examples/zpipe.c input and output to binary mode for Windows
+- Update examples/zlib_how.html with new zpipe.c (also web site)
+- Fix some warnings in examples/gzlog.c and examples/zran.c (it seems
+  that gcc became pickier in 4.0)
+- Add zlib.map for Linux: "All symbols from zlib-1.1.4 remain
+  un-versioned, the patch adds versioning only for symbols introduced in
+  zlib-1.2.0 or later.  It also declares as local those symbols which are
+  not designed to be exported." [Levin]
+- Update Z_PREFIX list in zconf.in.h, add --zprefix option to configure
+- Do not initialize global static by default in trees.c, add a response
+  NO_INIT_GLOBAL_POINTERS to initialize them if needed [Marquess]
+- Don't use strerror() in gzio.c under WinCE [Yakimov]
+- Don't use errno.h in zutil.h under WinCE [Yakimov]
+- Move arguments for AR to its usage to allow replacing ar [Marot]
+- Add HAVE_VISIBILITY_PRAGMA in zconf.in.h for Mozilla [Randers-Pehrson]
+- Improve inflateInit() and inflateInit2() documentation
+- Fix structure size comment in inflate.h
+- Change configure help option from --h* to --help [Santos]
+
+Changes in 1.2.3 (18 July 2005)
+- Apply security vulnerability fixes to contrib/infback9 as well
+- Clean up some text files (carriage returns, trailing space)
+- Update testzlib, vstudio, masmx64, and masmx86 in contrib [Vollant]
+
+Changes in 1.2.2.4 (11 July 2005)
+- Add inflatePrime() function for starting inflation at bit boundary
+- Avoid some Visual C warnings in deflate.c
+- Avoid more silly Visual C warnings in inflate.c and inftrees.c for 64-bit
+  compile
+- Fix some spelling errors in comments [Betts]
+- Correct inflateInit2() error return documentation in zlib.h
+- Add zran.c example of compressed data random access to examples
+  directory, shows use of inflatePrime()
+- Fix cast for assignments to strm->state in inflate.c and infback.c
+- Fix zlibCompileFlags() in zutil.c to use 1L for long shifts [Oberhumer]
+- Move declarations of gf2 functions to right place in crc32.c [Oberhumer]
+- Add cast in trees.c t avoid a warning [Oberhumer]
+- Avoid some warnings in fitblk.c, gun.c, gzjoin.c in examples [Oberhumer]
+- Update make_vms.com [Zinser]
+- Initialize state->write in inflateReset() since copied in inflate_fast()
+- Be more strict on incomplete code sets in inflate_table() and increase
+  ENOUGH and MAXD -- this repairs a possible security vulnerability for
+  invalid inflate input.  Thanks to Tavis Ormandy and Markus Oberhumer for
+  discovering the vulnerability and providing test cases.
+- Add ia64 support to configure for HP-UX [Smith]
+- Add error return to gzread() for format or i/o error [Levin]
+- Use malloc.h for OS/2 [Necasek]
+
+Changes in 1.2.2.3 (27 May 2005)
+- Replace 1U constants in inflate.c and inftrees.c for 64-bit compile
+- Typecast fread() return values in gzio.c [Vollant]
+- Remove trailing space in minigzip.c outmode (VC++ can't deal with it)
+- Fix crc check bug in gzread() after gzungetc() [Heiner]
+- Add the deflateTune() function to adjust internal compression parameters
+- Add a fast gzip decompressor, gun.c, to examples (use of inflateBack)
+- Remove an incorrect assertion in examples/zpipe.c
+- Add C++ wrapper in infback9.h [Donais]
+- Fix bug in inflateCopy() when decoding fixed codes
+- Note in zlib.h how much deflateSetDictionary() actually uses
+- Remove USE_DICT_HEAD in deflate.c (would mess up inflate if used)
+- Add _WIN32_WCE to define WIN32 in zconf.in.h [Spencer]
+- Don't include stderr.h or errno.h for _WIN32_WCE in zutil.h [Spencer]
+- Add gzdirect() function to indicate transparent reads
+- Update contrib/minizip [Vollant]
+- Fix compilation of deflate.c when both ASMV and FASTEST [Oberhumer]
+- Add casts in crc32.c to avoid warnings [Oberhumer]
+- Add contrib/masmx64 [Vollant]
+- Update contrib/asm586, asm686, masmx86, testzlib, vstudio [Vollant]
+
+Changes in 1.2.2.2 (30 December 2004)
+- Replace structure assignments in deflate.c and inflate.c with zmemcpy to
+  avoid implicit memcpy calls (portability for no-library compilation)
+- Increase sprintf() buffer size in gzdopen() to allow for large numbers
+- Add INFLATE_STRICT to check distances against zlib header
+- Improve WinCE errno handling and comments [Chang]
+- Remove comment about no gzip header processing in FAQ
+- Add Z_FIXED strategy option to deflateInit2() to force fixed trees
+- Add updated make_vms.com [Coghlan], update README
+- Create a new "examples" directory, move gzappend.c there, add zpipe.c,
+  fitblk.c, gzlog.[ch], gzjoin.c, and zlib_how.html.
+- Add FAQ entry and comments in deflate.c on uninitialized memory access
+- Add Solaris 9 make options in configure [Gilbert]
+- Allow strerror() usage in gzio.c for STDC
+- Fix DecompressBuf in contrib/delphi/ZLib.pas [ManChesTer]
+- Update contrib/masmx86/inffas32.asm and gvmat32.asm [Vollant]
+- Use z_off_t for adler32_combine() and crc32_combine() lengths
+- Make adler32() much faster for small len
+- Use OS_CODE in deflate() default gzip header
+
+Changes in 1.2.2.1 (31 October 2004)
+- Allow inflateSetDictionary() call for raw inflate
+- Fix inflate header crc check bug for file names and comments
+- Add deflateSetHeader() and gz_header structure for custom gzip headers
+- Add inflateGetheader() to retrieve gzip headers
+- Add crc32_combine() and adler32_combine() functions
+- Add alloc_func, free_func, in_func, out_func to Z_PREFIX list
+- Use zstreamp consistently in zlib.h (inflate_back functions)
+- Remove GUNZIP condition from definition of inflate_mode in inflate.h
+  and in contrib/inflate86/inffast.S [Truta, Anderson]
+- Add support for AMD64 in contrib/inflate86/inffas86.c [Anderson]
+- Update projects/README.projects and projects/visualc6 [Truta]
+- Update win32/DLL_FAQ.txt [Truta]
+- Avoid warning under NO_GZCOMPRESS in gzio.c; fix typo [Truta]
+- Deprecate Z_ASCII; use Z_TEXT instead [Truta]
+- Use a new algorithm for setting strm->data_type in trees.c [Truta]
+- Do not define an exit() prototype in zutil.c unless DEBUG defined
+- Remove prototype of exit() from zutil.c, example.c, minigzip.c [Truta]
+- Add comment in zlib.h for Z_NO_FLUSH parameter to deflate()
+- Fix Darwin build version identification [Peterson]
+
+Changes in 1.2.2 (3 October 2004)
+- Update zlib.h comments on gzip in-memory processing
+- Set adler to 1 in inflateReset() to support Java test suite [Walles]
+- Add contrib/dotzlib [Ravn]
+- Update win32/DLL_FAQ.txt [Truta]
+- Update contrib/minizip [Vollant]
+- Move contrib/visual-basic.txt to old/ [Truta]
+- Fix assembler builds in projects/visualc6/ [Truta]
+
+Changes in 1.2.1.2 (9 September 2004)
+- Update INDEX file
+- Fix trees.c to update strm->data_type (no one ever noticed!)
+- Fix bug in error case in inflate.c, infback.c, and infback9.c [Brown]
+- Add "volatile" to crc table flag declaration (for DYNAMIC_CRC_TABLE)
+- Add limited multitasking protection to DYNAMIC_CRC_TABLE
+- Add NO_vsnprintf for VMS in zutil.h [Mozilla]
+- Don't declare strerror() under VMS [Mozilla]
+- Add comment to DYNAMIC_CRC_TABLE to use get_crc_table() to initialize
+- Update contrib/ada [Anisimkov]
+- Update contrib/minizip [Vollant]
+- Fix configure to not hardcode directories for Darwin [Peterson]
+- Fix gzio.c to not return error on empty files [Brown]
+- Fix indentation; update version in contrib/delphi/ZLib.pas and
+  contrib/pascal/zlibpas.pas [Truta]
+- Update mkasm.bat in contrib/masmx86 [Truta]
+- Update contrib/untgz [Truta]
+- Add projects/README.projects [Truta]
+- Add project for MS Visual C++ 6.0 in projects/visualc6 [Cadieux, Truta]
+- Update win32/DLL_FAQ.txt [Truta]
+- Update list of Z_PREFIX symbols in zconf.h [Randers-Pehrson, Truta]
+- Remove an unnecessary assignment to curr in inftrees.c [Truta]
+- Add OS/2 to exe builds in configure [Poltorak]
+- Remove err dummy parameter in zlib.h [Kientzle]
+
+Changes in 1.2.1.1 (9 January 2004)
+- Update email address in README
+- Several FAQ updates
+- Fix a big fat bug in inftrees.c that prevented decoding valid
+  dynamic blocks with only literals and no distance codes --
+  Thanks to "Hot Emu" for the bug report and sample file
+- Add a note to puff.c on no distance codes case.
+
+Changes in 1.2.1 (17 November 2003)
+- Remove a tab in contrib/gzappend/gzappend.c
+- Update some interfaces in contrib for new zlib functions
+- Update zlib version number in some contrib entries
+- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta]
+- Support shared libraries on Hurd and KFreeBSD [Brown]
+- Fix error in NO_DIVIDE option of adler32.c
+
+Changes in 1.2.0.8 (4 November 2003)
+- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas
+- Add experimental NO_DIVIDE #define in adler32.c
+    - Possibly faster on some processors (let me know if it is)
+- Correct Z_BLOCK to not return on first inflate call if no wrap
+- Fix strm->data_type on inflate() return to correctly indicate EOB
+- Add deflatePrime() function for appending in the middle of a byte
+- Add contrib/gzappend for an example of appending to a stream
+- Update win32/DLL_FAQ.txt [Truta]
+- Delete Turbo C comment in README [Truta]
+- Improve some indentation in zconf.h [Truta]
+- Fix infinite loop on bad input in configure script [Church]
+- Fix gzeof() for concatenated gzip files [Johnson]
+- Add example to contrib/visual-basic.txt [Michael B.]
+- Add -p to mkdir's in Makefile.in [vda]
+- Fix configure to properly detect presence or lack of printf functions
+- Add AS400 support [Monnerat]
+- Add a little Cygwin support [Wilson]
+
+Changes in 1.2.0.7 (21 September 2003)
+- Correct some debug formats in contrib/infback9
+- Cast a type in a debug statement in trees.c
+- Change search and replace delimiter in configure from % to # [Beebe]
+- Update contrib/untgz to 0.2 with various fixes [Truta]
+- Add build support for Amiga [Nikl]
+- Remove some directories in old that have been updated to 1.2
+- Add dylib building for Mac OS X in configure and Makefile.in
+- Remove old distribution stuff from Makefile
+- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X
+- Update links in README
+
+Changes in 1.2.0.6 (13 September 2003)
+- Minor FAQ updates
+- Update contrib/minizip to 1.00 [Vollant]
+- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta]
+- Update POSTINC comment for 68060 [Nikl]
+- Add contrib/infback9 with deflate64 decoding (unsupported)
+- For MVS define NO_vsnprintf and undefine FAR [van Burik]
+- Add pragma for fdopen on MVS [van Burik]
+
+Changes in 1.2.0.5 (8 September 2003)
+- Add OF to inflateBackEnd() declaration in zlib.h
+- Remember start when using gzdopen in the middle of a file
+- Use internal off_t counters in gz* functions to properly handle seeks
+- Perform more rigorous check for distance-too-far in inffast.c
+- Add Z_BLOCK flush option to return from inflate at block boundary
+- Set strm->data_type on return from inflate
+    - Indicate bits unused, if at block boundary, and if in last block
+- Replace size_t with ptrdiff_t in crc32.c, and check for correct size
+- Add condition so old NO_DEFLATE define still works for compatibility
+- FAQ update regarding the Windows DLL [Truta]
+- INDEX update: add qnx entry, remove aix entry [Truta]
+- Install zlib.3 into mandir [Wilson]
+- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta]
+- Adapt the zlib interface to the new DLL convention guidelines [Truta]
+- Introduce ZLIB_WINAPI macro to allow the export of functions using
+  the WINAPI calling convention, for Visual Basic [Vollant, Truta]
+- Update msdos and win32 scripts and makefiles [Truta]
+- Export symbols by name, not by ordinal, in win32/zlib.def [Truta]
+- Add contrib/ada [Anisimkov]
+- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta]
+- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant]
+- Add contrib/masm686 [Truta]
+- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm
+  [Truta, Vollant]
+- Update contrib/delphi; rename to contrib/pascal; add example [Truta]
+- Remove contrib/delphi2; add a new contrib/delphi [Truta]
+- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream,
+  and fix some method prototypes [Truta]
+- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip
+  [Truta]
+- Avoid the use of backslash (\) in contrib/minizip [Vollant]
+- Fix file time handling in contrib/untgz; update makefiles [Truta]
+- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines
+  [Vollant]
+- Remove contrib/vstudio/vc15_16 [Vollant]
+- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta]
+- Update README.contrib [Truta]
+- Invert the assignment order of match_head and s->prev[...] in
+  INSERT_STRING [Truta]
+- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings
+  [Truta]
+- Compare function pointers with 0, not with NULL or Z_NULL [Truta]
+- Fix prototype of syncsearch in inflate.c [Truta]
+- Introduce ASMINF macro to be enabled when using an ASM implementation
+  of inflate_fast [Truta]
+- Change NO_DEFLATE to NO_GZCOMPRESS [Truta]
+- Modify test_gzio in example.c to take a single file name as a
+  parameter [Truta]
+- Exit the example.c program if gzopen fails [Truta]
+- Add type casts around strlen in example.c [Truta]
+- Remove casting to sizeof in minigzip.c; give a proper type
+  to the variable compared with SUFFIX_LEN [Truta]
+- Update definitions of STDC and STDC99 in zconf.h [Truta]
+- Synchronize zconf.h with the new Windows DLL interface [Truta]
+- Use SYS16BIT instead of __32BIT__ to distinguish between
+  16- and 32-bit platforms [Truta]
+- Use far memory allocators in small 16-bit memory models for
+  Turbo C [Truta]
+- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in
+  zlibCompileFlags [Truta]
+- Cygwin has vsnprintf [Wilson]
+- In Windows16, OS_CODE is 0, as in MSDOS [Truta]
+- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson]
+
+Changes in 1.2.0.4 (10 August 2003)
+- Minor FAQ updates
+- Be more strict when checking inflateInit2's windowBits parameter
+- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well
+- Add gzip wrapper option to deflateInit2 using windowBits
+- Add updated QNX rule in configure and qnx directory [Bonnefoy]
+- Make inflate distance-too-far checks more rigorous
+- Clean up FAR usage in inflate
+- Add casting to sizeof() in gzio.c and minigzip.c
+
+Changes in 1.2.0.3 (19 July 2003)
+- Fix silly error in gzungetc() implementation [Vollant]
+- Update contrib/minizip and contrib/vstudio [Vollant]
+- Fix printf format in example.c
+- Correct cdecl support in zconf.in.h [Anisimkov]
+- Minor FAQ updates
+
+Changes in 1.2.0.2 (13 July 2003)
+- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons
+- Attempt to avoid warnings in crc32.c for pointer-int conversion
+- Add AIX to configure, remove aix directory [Bakker]
+- Add some casts to minigzip.c
+- Improve checking after insecure sprintf() or vsprintf() calls
+- Remove #elif's from crc32.c
+- Change leave label to inf_leave in inflate.c and infback.c to avoid
+  library conflicts
+- Remove inflate gzip decoding by default--only enable gzip decoding by
+  special request for stricter backward compatibility
+- Add zlibCompileFlags() function to return compilation information
+- More typecasting in deflate.c to avoid warnings
+- Remove leading underscore from _Capital #defines [Truta]
+- Fix configure to link shared library when testing
+- Add some Windows CE target adjustments [Mai]
+- Remove #define ZLIB_DLL in zconf.h [Vollant]
+- Add zlib.3 [Rodgers]
+- Update RFC URL in deflate.c and algorithm.txt [Mai]
+- Add zlib_dll_FAQ.txt to contrib [Truta]
+- Add UL to some constants [Truta]
+- Update minizip and vstudio [Vollant]
+- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h
+- Expand use of NO_DUMMY_DECL to avoid all dummy structures
+- Added iostream3 to contrib [Schwardt]
+- Replace rewind() with fseek() for WinCE [Truta]
+- Improve setting of zlib format compression level flags
+    - Report 0 for huffman and rle strategies and for level == 0 or 1
+    - Report 2 only for level == 6
+- Only deal with 64K limit when necessary at compile time [Truta]
+- Allow TOO_FAR check to be turned off at compile time [Truta]
+- Add gzclearerr() function [Souza]
+- Add gzungetc() function
+
+Changes in 1.2.0.1 (17 March 2003)
+- Add Z_RLE strategy for run-length encoding [Truta]
+    - When Z_RLE requested, restrict matches to distance one
+    - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE
+- Correct FASTEST compilation to allow level == 0
+- Clean up what gets compiled for FASTEST
+- Incorporate changes to zconf.in.h [Vollant]
+    - Refine detection of Turbo C need for dummy returns
+    - Refine ZLIB_DLL compilation
+    - Include additional header file on VMS for off_t typedef
+- Try to use _vsnprintf where it supplants vsprintf [Vollant]
+- Add some casts in inffast.c
+- Enchance comments in zlib.h on what happens if gzprintf() tries to
+  write more than 4095 bytes before compression
+- Remove unused state from inflateBackEnd()
+- Remove exit(0) from minigzip.c, example.c
+- Get rid of all those darn tabs
+- Add "check" target to Makefile.in that does the same thing as "test"
+- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in
+- Update contrib/inflate86 [Anderson]
+- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant]
+- Add msdos and win32 directories with makefiles [Truta]
+- More additions and improvements to the FAQ
+
+Changes in 1.2.0 (9 March 2003)
+- New and improved inflate code
+    - About 20% faster
+    - Does not allocate 32K window unless and until needed
+    - Automatically detects and decompresses gzip streams
+    - Raw inflate no longer needs an extra dummy byte at end
+    - Added inflateBack functions using a callback interface--even faster
+      than inflate, useful for file utilities (gzip, zip)
+    - Added inflateCopy() function to record state for random access on
+      externally generated deflate streams (e.g. in gzip files)
+    - More readable code (I hope)
+- New and improved crc32()
+    - About 50% faster, thanks to suggestions from Rodney Brown
+- Add deflateBound() and compressBound() functions
+- Fix memory leak in deflateInit2()
+- Permit setting dictionary for raw deflate (for parallel deflate)
+- Fix const declaration for gzwrite()
+- Check for some malloc() failures in gzio.c
+- Fix bug in gzopen() on single-byte file 0x1f
+- Fix bug in gzread() on concatenated file with 0x1f at end of buffer
+  and next buffer doesn't start with 0x8b
+- Fix uncompress() to return Z_DATA_ERROR on truncated input
+- Free memory at end of example.c
+- Remove MAX #define in trees.c (conflicted with some libraries)
+- Fix static const's in deflate.c, gzio.c, and zutil.[ch]
+- Declare malloc() and free() in gzio.c if STDC not defined
+- Use malloc() instead of calloc() in zutil.c if int big enough
+- Define STDC for AIX
+- Add aix/ with approach for compiling shared library on AIX
+- Add HP-UX support for shared libraries in configure
+- Add OpenUNIX support for shared libraries in configure
+- Use $cc instead of gcc to build shared library
+- Make prefix directory if needed when installing
+- Correct Macintosh avoidance of typedef Byte in zconf.h
+- Correct Turbo C memory allocation when under Linux
+- Use libz.a instead of -lz in Makefile (assure use of compiled library)
+- Update configure to check for snprintf or vsnprintf functions and their
+  return value, warn during make if using an insecure function
+- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that
+  is lost when library is used--resolution is to build new zconf.h
+- Documentation improvements (in zlib.h):
+    - Document raw deflate and inflate
+    - Update RFCs URL
+    - Point out that zlib and gzip formats are different
+    - Note that Z_BUF_ERROR is not fatal
+    - Document string limit for gzprintf() and possible buffer overflow
+    - Note requirement on avail_out when flushing
+    - Note permitted values of flush parameter of inflate()
+- Add some FAQs (and even answers) to the FAQ
+- Add contrib/inflate86/ for x86 faster inflate
+- Add contrib/blast/ for PKWare Data Compression Library decompression
+- Add contrib/puff/ simple inflate for deflate format description
+
+Changes in 1.1.4 (11 March 2002)
+- ZFREE was repeated on same allocation on some error conditions.
+  This creates a security problem described in
+  http://www.zlib.org/advisory-2002-03-11.txt
+- Returned incorrect error (Z_MEM_ERROR) on some invalid data
+- Avoid accesses before window for invalid distances with inflate window
+  less than 32K.
+- force windowBits > 8 to avoid a bug in the encoder for a window size
+  of 256 bytes. (A complete fix will be available in 1.1.5).
+
+Changes in 1.1.3 (9 July 1998)
+- fix "an inflate input buffer bug that shows up on rare but persistent
+  occasions" (Mark)
+- fix gzread and gztell for concatenated .gz files (Didier Le Botlan)
+- fix gzseek(..., SEEK_SET) in write mode
+- fix crc check after a gzeek (Frank Faubert)
+- fix miniunzip when the last entry in a zip file is itself a zip file
+  (J Lillge)
+- add contrib/asm586 and contrib/asm686 (Brian Raiter)
+  See http://www.muppetlabs.com/~breadbox/software/assembly.html
+- add support for Delphi 3 in contrib/delphi (Bob Dellaca)
+- add support for C++Builder 3 and Delphi 3 in contrib/delphi2 (Davide Moretti)
+- do not exit prematurely in untgz if 0 at start of block (Magnus Holmgren)
+- use macro EXTERN instead of extern to support DLL for BeOS (Sander Stoks)
+- added a FAQ file
+
+- Support gzdopen on Mac with Metrowerks (Jason Linhart)
+- Do not redefine Byte on Mac (Brad Pettit & Jason Linhart)
+- define SEEK_END too if SEEK_SET is not defined (Albert Chin-A-Young)
+- avoid some warnings with Borland C (Tom Tanner)
+- fix a problem in contrib/minizip/zip.c for 16-bit MSDOS (Gilles Vollant)
+- emulate utime() for WIN32 in contrib/untgz  (Gilles Vollant)
+- allow several arguments to configure (Tim Mooney, Frodo Looijaard)
+- use libdir and includedir in Makefile.in (Tim Mooney)
+- support shared libraries on OSF1 V4 (Tim Mooney)
+- remove so_locations in "make clean"  (Tim Mooney)
+- fix maketree.c compilation error (Glenn, Mark)
+- Python interface to zlib now in Python 1.5 (Jeremy Hylton)
+- new Makefile.riscos (Rich Walker)
+- initialize static descriptors in trees.c for embedded targets (Nick Smith)
+- use "foo-gz" in example.c for RISCOS and VMS (Nick Smith)
+- add the OS/2 files in Makefile.in too (Andrew Zabolotny)
+- fix fdopen and halloc macros for Microsoft C 6.0 (Tom Lane)
+- fix maketree.c to allow clean compilation of inffixed.h (Mark)
+- fix parameter check in deflateCopy (Gunther Nikl)
+- cleanup trees.c, use compressed_len only in debug mode (Christian Spieler)
+- Many portability patches by Christian Spieler:
+  . zutil.c, zutil.h: added "const" for zmem*
+  . Make_vms.com: fixed some typos
+  . Make_vms.com: msdos/Makefile.*: removed zutil.h from some dependency lists
+  . msdos/Makefile.msc: remove "default rtl link library" info from obj files
+  . msdos/Makefile.*: use model-dependent name for the built zlib library
+  . msdos/Makefile.emx, nt/Makefile.emx, nt/Makefile.gcc:
+     new makefiles, for emx (DOS/OS2), emx&rsxnt and mingw32 (Windows 9x / NT)
+- use define instead of typedef for Bytef also for MSC small/medium (Tom Lane)
+- replace __far with _far for better portability (Christian Spieler, Tom Lane)
+- fix test for errno.h in configure (Tim Newsham)
+
+Changes in 1.1.2 (19 March 98)
+- added contrib/minzip, mini zip and unzip based on zlib (Gilles Vollant)
+  See http://www.winimage.com/zLibDll/unzip.html
+- preinitialize the inflate tables for fixed codes, to make the code
+  completely thread safe (Mark)
+- some simplifications and slight speed-up to the inflate code (Mark)
+- fix gzeof on non-compressed files (Allan Schrum)
+- add -std1 option in configure for OSF1 to fix gzprintf (Martin Mokrejs)
+- use default value of 4K for Z_BUFSIZE for 16-bit MSDOS (Tim Wegner + Glenn)
+- added os2/Makefile.def and os2/zlib.def (Andrew Zabolotny)
+- add shared lib support for UNIX_SV4.2MP (MATSUURA Takanori)
+- do not wrap extern "C" around system includes (Tom Lane)
+- mention zlib binding for TCL in README (Andreas Kupries)
+- added amiga/Makefile.pup for Amiga powerUP SAS/C PPC (Andreas Kleinert)
+- allow "make install prefix=..." even after configure (Glenn Randers-Pehrson)
+- allow "configure --prefix $HOME" (Tim Mooney)
+- remove warnings in example.c and gzio.c (Glenn Randers-Pehrson)
+- move Makefile.sas to amiga/Makefile.sas
+
+Changes in 1.1.1 (27 Feb 98)
+- fix macros _tr_tally_* in deflate.h for debug mode  (Glenn Randers-Pehrson)
+- remove block truncation heuristic which had very marginal effect for zlib
+  (smaller lit_bufsize than in gzip 1.2.4) and degraded a little the
+  compression ratio on some files. This also allows inlining _tr_tally for
+  matches in deflate_slow.
+- added msdos/Makefile.w32 for WIN32 Microsoft Visual C++ (Bob Frazier)
+
+Changes in 1.1.0 (24 Feb 98)
+- do not return STREAM_END prematurely in inflate (John Bowler)
+- revert to the zlib 1.0.8 inflate to avoid the gcc 2.8.0 bug (Jeremy Buhler)
+- compile with -DFASTEST to get compression code optimized for speed only
+- in minigzip, try mmap'ing the input file first (Miguel Albrecht)
+- increase size of I/O buffers in minigzip.c and gzio.c (not a big gain
+  on Sun but significant on HP)
+
+- add a pointer to experimental unzip library in README (Gilles Vollant)
+- initialize variable gcc in configure (Chris Herborth)
+
+Changes in 1.0.9 (17 Feb 1998)
+- added gzputs and gzgets functions
+- do not clear eof flag in gzseek (Mark Diekhans)
+- fix gzseek for files in transparent mode (Mark Diekhans)
+- do not assume that vsprintf returns the number of bytes written (Jens Krinke)
+- replace EXPORT with ZEXPORT to avoid conflict with other programs
+- added compress2 in zconf.h, zlib.def, zlib.dnt
+- new asm code from Gilles Vollant in contrib/asm386
+- simplify the inflate code (Mark):
+ . Replace ZALLOC's in huft_build() with single ZALLOC in inflate_blocks_new()
+ . ZALLOC the length list in inflate_trees_fixed() instead of using stack
+ . ZALLOC the value area for huft_build() instead of using stack
+ . Simplify Z_FINISH check in inflate()
+
+- Avoid gcc 2.8.0 comparison bug a little differently than zlib 1.0.8
+- in inftrees.c, avoid cc -O bug on HP (Farshid Elahi)
+- in zconf.h move the ZLIB_DLL stuff earlier to avoid problems with
+  the declaration of FAR (Gilles VOllant)
+- install libz.so* with mode 755 (executable) instead of 644 (Marc Lehmann)
+- read_buf buf parameter of type Bytef* instead of charf*
+- zmemcpy parameters are of type Bytef*, not charf* (Joseph Strout)
+- do not redeclare unlink in minigzip.c for WIN32 (John Bowler)
+- fix check for presence of directories in "make install" (Ian Willis)
+
+Changes in 1.0.8 (27 Jan 1998)
+- fixed offsets in contrib/asm386/gvmat32.asm (Gilles Vollant)
+- fix gzgetc and gzputc for big endian systems (Markus Oberhumer)
+- added compress2() to allow setting the compression level
+- include sys/types.h to get off_t on some systems (Marc Lehmann & QingLong)
+- use constant arrays for the static trees in trees.c instead of computing
+  them at run time (thanks to Ken Raeburn for this suggestion). To create
+  trees.h, compile with GEN_TREES_H and run "make test".
+- check return code of example in "make test" and display result
+- pass minigzip command line options to file_compress
+- simplifying code of inflateSync to avoid gcc 2.8 bug
+
+- support CC="gcc -Wall" in configure -s (QingLong)
+- avoid a flush caused by ftell in gzopen for write mode (Ken Raeburn)
+- fix test for shared library support to avoid compiler warnings
+- zlib.lib -> zlib.dll in msdos/zlib.rc (Gilles Vollant)
+- check for TARGET_OS_MAC in addition to MACOS (Brad Pettit)
+- do not use fdopen for Metrowerks on Mac (Brad Pettit))
+- add checks for gzputc and gzputc in example.c
+- avoid warnings in gzio.c and deflate.c (Andreas Kleinert)
+- use const for the CRC table (Ken Raeburn)
+- fixed "make uninstall" for shared libraries
+- use Tracev instead of Trace in infblock.c
+- in example.c use correct compressed length for test_sync
+- suppress +vnocompatwarnings in configure for HPUX (not always supported)
+
+Changes in 1.0.7 (20 Jan 1998)
+- fix gzseek which was broken in write mode
+- return error for gzseek to negative absolute position
+- fix configure for Linux (Chun-Chung Chen)
+- increase stack space for MSC (Tim Wegner)
+- get_crc_table and inflateSyncPoint are EXPORTed (Gilles Vollant)
+- define EXPORTVA for gzprintf (Gilles Vollant)
+- added man page zlib.3 (Rick Rodgers)
+- for contrib/untgz, fix makedir() and improve Makefile
+
+- check gzseek in write mode in example.c
+- allocate extra buffer for seeks only if gzseek is actually called
+- avoid signed/unsigned comparisons (Tim Wegner, Gilles Vollant)
+- add inflateSyncPoint in zconf.h
+- fix list of exported functions in nt/zlib.dnt and mdsos/zlib.def
+
+Changes in 1.0.6 (19 Jan 1998)
+- add functions gzprintf, gzputc, gzgetc, gztell, gzeof, gzseek, gzrewind and
+  gzsetparams (thanks to Roland Giersig and Kevin Ruland for some of this code)
+- Fix a deflate bug occurring only with compression level 0 (thanks to
+  Andy Buckler for finding this one).
+- In minigzip, pass transparently also the first byte for .Z files.
+- return Z_BUF_ERROR instead of Z_OK if output buffer full in uncompress()
+- check Z_FINISH in inflate (thanks to Marc Schluper)
+- Implement deflateCopy (thanks to Adam Costello)
+- make static libraries by default in configure, add --shared option.
+- move MSDOS or Windows specific files to directory msdos
+- suppress the notion of partial flush to simplify the interface
+  (but the symbol Z_PARTIAL_FLUSH is kept for compatibility with 1.0.4)
+- suppress history buffer provided by application to simplify the interface
+  (this feature was not implemented anyway in 1.0.4)
+- next_in and avail_in must be initialized before calling inflateInit or
+  inflateInit2
+- add EXPORT in all exported functions (for Windows DLL)
+- added Makefile.nt (thanks to Stephen Williams)
+- added the unsupported "contrib" directory:
+   contrib/asm386/ by Gilles Vollant <info@winimage.com>
+        386 asm code replacing longest_match().
+   contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu>
+        A C++ I/O streams interface to the zlib gz* functions
+   contrib/iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
+        Another C++ I/O streams interface
+   contrib/untgz/  by "Pedro A. Aranda Guti\irrez" <paag@tid.es>
+        A very simple tar.gz file extractor using zlib
+   contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl>
+        How to use compress(), uncompress() and the gz* functions from VB.
+- pass params -f (filtered data), -h (huffman only), -1 to -9 (compression
+  level) in minigzip (thanks to Tom Lane)
+
+- use const for rommable constants in deflate
+- added test for gzseek and gztell in example.c
+- add undocumented function inflateSyncPoint() (hack for Paul Mackerras)
+- add undocumented function zError to convert error code to string
+  (for Tim Smithers)
+- Allow compilation of gzio with -DNO_DEFLATE to avoid the compression code.
+- Use default memcpy for Symantec MSDOS compiler.
+- Add EXPORT keyword for check_func (needed for Windows DLL)
+- add current directory to LD_LIBRARY_PATH for "make test"
+- create also a link for libz.so.1
+- added support for FUJITSU UXP/DS (thanks to Toshiaki Nomura)
+- use $(SHAREDLIB) instead of libz.so in Makefile.in (for HPUX)
+- added -soname for Linux in configure (Chun-Chung Chen,
+- assign numbers to the exported functions in zlib.def (for Windows DLL)
+- add advice in zlib.h for best usage of deflateSetDictionary
+- work around compiler bug on Atari (cast Z_NULL in call of s->checkfn)
+- allow compilation with ANSI keywords only enabled for TurboC in large model
+- avoid "versionString"[0] (Borland bug)
+- add NEED_DUMMY_RETURN for Borland
+- use variable z_verbose for tracing in debug mode (L. Peter Deutsch).
+- allow compilation with CC
+- defined STDC for OS/2 (David Charlap)
+- limit external names to 8 chars for MVS (Thomas Lund)
+- in minigzip.c, use static buffers only for 16-bit systems
+- fix suffix check for "minigzip -d foo.gz"
+- do not return an error for the 2nd of two consecutive gzflush() (Felix Lee)
+- use _fdopen instead of fdopen for MSC >= 6.0 (Thomas Fanslau)
+- added makelcc.bat for lcc-win32 (Tom St Denis)
+- in Makefile.dj2, use copy and del instead of install and rm (Frank Donahoe)
+- Avoid expanded $Id$. Use "rcs -kb" or "cvs admin -kb" to avoid Id expansion.
+- check for unistd.h in configure (for off_t)
+- remove useless check parameter in inflate_blocks_free
+- avoid useless assignment of s->check to itself in inflate_blocks_new
+- do not flush twice in gzclose (thanks to Ken Raeburn)
+- rename FOPEN as F_OPEN to avoid clash with /usr/include/sys/file.h
+- use NO_ERRNO_H instead of enumeration of operating systems with errno.h
+- work around buggy fclose on pipes for HP/UX
+- support zlib DLL with BORLAND C++ 5.0 (thanks to Glenn Randers-Pehrson)
+- fix configure if CC is already equal to gcc
+
+Changes in 1.0.5 (3 Jan 98)
+- Fix inflate to terminate gracefully when fed corrupted or invalid data
+- Use const for rommable constants in inflate
+- Eliminate memory leaks on error conditions in inflate
+- Removed some vestigial code in inflate
+- Update web address in README
+
+Changes in 1.0.4 (24 Jul 96)
+- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF
+  bit, so the decompressor could decompress all the correct data but went
+  on to attempt decompressing extra garbage data. This affected minigzip too.
+- zlibVersion and gzerror return const char* (needed for DLL)
+- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno)
+- use z_error only for DEBUG (avoid problem with DLLs)
+
+Changes in 1.0.3 (2 Jul 96)
+- use z_streamp instead of z_stream *, which is now a far pointer in MSDOS
+  small and medium models; this makes the library incompatible with previous
+  versions for these models. (No effect in large model or on other systems.)
+- return OK instead of BUF_ERROR if previous deflate call returned with
+  avail_out as zero but there is nothing to do
+- added memcmp for non STDC compilers
+- define NO_DUMMY_DECL for more Mac compilers (.h files merged incorrectly)
+- define __32BIT__ if __386__ or i386 is defined (pb. with Watcom and SCO)
+- better check for 16-bit mode MSC (avoids problem with Symantec)
+
+Changes in 1.0.2 (23 May 96)
+- added Windows DLL support
+- added a function zlibVersion (for the DLL support)
+- fixed declarations using Bytef in infutil.c (pb with MSDOS medium model)
+- Bytef is define's instead of typedef'd only for Borland C
+- avoid reading uninitialized memory in example.c
+- mention in README that the zlib format is now RFC1950
+- updated Makefile.dj2
+- added algorithm.doc
+
+Changes in 1.0.1 (20 May 96) [1.0 skipped to avoid confusion]
+- fix array overlay in deflate.c which sometimes caused bad compressed data
+- fix inflate bug with empty stored block
+- fix MSDOS medium model which was broken in 0.99
+- fix deflateParams() which could generate bad compressed data.
+- Bytef is define'd instead of typedef'ed (work around Borland bug)
+- added an INDEX file
+- new makefiles for DJGPP (Makefile.dj2), 32-bit Borland (Makefile.b32),
+  Watcom (Makefile.wat), Amiga SAS/C (Makefile.sas)
+- speed up adler32 for modern machines without auto-increment
+- added -ansi for IRIX in configure
+- static_init_done in trees.c is an int
+- define unlink as delete for VMS
+- fix configure for QNX
+- add configure branch for SCO and HPUX
+- avoid many warnings (unused variables, dead assignments, etc...)
+- no fdopen for BeOS
+- fix the Watcom fix for 32 bit mode (define FAR as empty)
+- removed redefinition of Byte for MKWERKS
+- work around an MWKERKS bug (incorrect merge of all .h files)
+
+Changes in 0.99 (27 Jan 96)
+- allow preset dictionary shared between compressor and decompressor
+- allow compression level 0 (no compression)
+- add deflateParams in zlib.h: allow dynamic change of compression level
+  and compression strategy.
+- test large buffers and deflateParams in example.c
+- add optional "configure" to build zlib as a shared library
+- suppress Makefile.qnx, use configure instead
+- fixed deflate for 64-bit systems (detected on Cray)
+- fixed inflate_blocks for 64-bit systems (detected on Alpha)
+- declare Z_DEFLATED in zlib.h (possible parameter for deflateInit2)
+- always return Z_BUF_ERROR when deflate() has nothing to do
+- deflateInit and inflateInit are now macros to allow version checking
+- prefix all global functions and types with z_ with -DZ_PREFIX
+- make falloc completely reentrant (inftrees.c)
+- fixed very unlikely race condition in ct_static_init
+- free in reverse order of allocation to help memory manager
+- use zlib-1.0/* instead of zlib/* inside the tar.gz
+- make zlib warning-free with "gcc -O3 -Wall -Wwrite-strings -Wpointer-arith
+  -Wconversion -Wstrict-prototypes -Wmissing-prototypes"
+- allow gzread on concatenated .gz files
+- deflateEnd now returns Z_DATA_ERROR if it was premature
+- deflate is finally (?) fully deterministic (no matches beyond end of input)
+- Document Z_SYNC_FLUSH
+- add uninstall in Makefile
+- Check for __cpluplus in zlib.h
+- Better test in ct_align for partial flush
+- avoid harmless warnings for Borland C++
+- initialize hash_head in deflate.c
+- avoid warning on fdopen (gzio.c) for HP cc -Aa
+- include stdlib.h for STDC compilers
+- include errno.h for Cray
+- ignore error if ranlib doesn't exist
+- call ranlib twice for NeXTSTEP
+- use exec_prefix instead of prefix for libz.a
+- renamed ct_* as _tr_* to avoid conflict with applications
+- clear z->msg in inflateInit2 before any error return
+- initialize opaque in example.c, gzio.c, deflate.c and inflate.c
+- fixed typo in zconf.h (_GNUC__ => __GNUC__)
+- check for WIN32 in zconf.h and zutil.c (avoid farmalloc in 32-bit mode)
+- fix typo in Make_vms.com (f$trnlnm -> f$getsyi)
+- in fcalloc, normalize pointer if size > 65520 bytes
+- don't use special fcalloc for 32 bit Borland C++
+- use STDC instead of __GO32__ to avoid redeclaring exit, calloc, etc...
+- use Z_BINARY instead of BINARY
+- document that gzclose after gzdopen will close the file
+- allow "a" as mode in gzopen.
+- fix error checking in gzread
+- allow skipping .gz extra-field on pipes
+- added reference to Perl interface in README
+- put the crc table in FAR data (I dislike more and more the medium model :)
+- added get_crc_table
+- added a dimension to all arrays (Borland C can't count).
+- workaround Borland C bug in declaration of inflate_codes_new & inflate_fast
+- guard against multiple inclusion of *.h (for precompiled header on Mac)
+- Watcom C pretends to be Microsoft C small model even in 32 bit mode.
+- don't use unsized arrays to avoid silly warnings by Visual C++:
+     warning C4746: 'inflate_mask' : unsized array treated as  '__far'
+     (what's wrong with far data in far model?).
+- define enum out of inflate_blocks_state to allow compilation with C++
+
+Changes in 0.95 (16 Aug 95)
+- fix MSDOS small and medium model (now easier to adapt to any compiler)
+- inlined send_bits
+- fix the final (:-) bug for deflate with flush (output was correct but
+  not completely flushed in rare occasions).
+- default window size is same for compression and decompression
+  (it's now sufficient to set MAX_WBITS in zconf.h).
+- voidp -> voidpf and voidnp -> voidp (for consistency with other
+  typedefs and because voidnp was not near in large model).
+
+Changes in 0.94 (13 Aug 95)
+- support MSDOS medium model
+- fix deflate with flush (could sometimes generate bad output)
+- fix deflateReset (zlib header was incorrectly suppressed)
+- added support for VMS
+- allow a compression level in gzopen()
+- gzflush now calls fflush
+- For deflate with flush, flush even if no more input is provided.
+- rename libgz.a as libz.a
+- avoid complex expression in infcodes.c triggering Turbo C bug
+- work around a problem with gcc on Alpha (in INSERT_STRING)
+- don't use inline functions (problem with some gcc versions)
+- allow renaming of Byte, uInt, etc... with #define.
+- avoid warning about (unused) pointer before start of array in deflate.c
+- avoid various warnings in gzio.c, example.c, infblock.c, adler32.c, zutil.c
+- avoid reserved word 'new' in trees.c
+
+Changes in 0.93 (25 June 95)
+- temporarily disable inline functions
+- make deflate deterministic
+- give enough lookahead for PARTIAL_FLUSH
+- Set binary mode for stdin/stdout in minigzip.c for OS/2
+- don't even use signed char in inflate (not portable enough)
+- fix inflate memory leak for segmented architectures
+
+Changes in 0.92 (3 May 95)
+- don't assume that char is signed (problem on SGI)
+- Clear bit buffer when starting a stored block
+- no memcpy on Pyramid
+- suppressed inftest.c
+- optimized fill_window, put longest_match inline for gcc
+- optimized inflate on stored blocks.
+- untabify all sources to simplify patches
+
+Changes in 0.91 (2 May 95)
+- Default MEM_LEVEL is 8 (not 9 for Unix) as documented in zlib.h
+- Document the memory requirements in zconf.h
+- added "make install"
+- fix sync search logic in inflateSync
+- deflate(Z_FULL_FLUSH) now works even if output buffer too short
+- after inflateSync, don't scare people with just "lo world"
+- added support for DJGPP
+
+Changes in 0.9 (1 May 95)
+- don't assume that zalloc clears the allocated memory (the TurboC bug
+  was Mark's bug after all :)
+- let again gzread copy uncompressed data unchanged (was working in 0.71)
+- deflate(Z_FULL_FLUSH), inflateReset and inflateSync are now fully implemented
+- added a test of inflateSync in example.c
+- moved MAX_WBITS to zconf.h because users might want to change that.
+- document explicitly that zalloc(64K) on MSDOS must return a normalized
+  pointer (zero offset)
+- added Makefiles for Microsoft C, Turbo C, Borland C++
+- faster crc32()
+
+Changes in 0.8 (29 April 95)
+- added fast inflate (inffast.c)
+- deflate(Z_FINISH) now returns Z_STREAM_END when done. Warning: this
+  is incompatible with previous versions of zlib which returned Z_OK.
+- work around a TurboC compiler bug (bad code for b << 0, see infutil.h)
+  (actually that was not a compiler bug, see 0.81 above)
+- gzread no longer reads one extra byte in certain cases
+- In gzio destroy(), don't reference a freed structure
+- avoid many warnings for MSDOS
+- avoid the ERROR symbol which is used by MS Windows
+
+Changes in 0.71 (14 April 95)
+- Fixed more MSDOS compilation problems :( There is still a bug with
+  TurboC large model.
+
+Changes in 0.7 (14 April 95)
+- Added full inflate support.
+- Simplified the crc32() interface. The pre- and post-conditioning
+  (one's complement) is now done inside crc32(). WARNING: this is
+  incompatible with previous versions; see zlib.h for the new usage.
+
+Changes in 0.61 (12 April 95)
+- workaround for a bug in TurboC. example and minigzip now work on MSDOS.
+
+Changes in 0.6 (11 April 95)
+- added minigzip.c
+- added gzdopen to reopen a file descriptor as gzFile
+- added transparent reading of non-gziped files in gzread.
+- fixed bug in gzread (don't read crc as data)
+- fixed bug in destroy (gzio.c) (don't return Z_STREAM_END for gzclose).
+- don't allocate big arrays in the stack (for MSDOS)
+- fix some MSDOS compilation problems
+
+Changes in 0.5:
+- do real compression in deflate.c. Z_PARTIAL_FLUSH is supported but
+  not yet Z_FULL_FLUSH.
+- support decompression but only in a single step (forced Z_FINISH)
+- added opaque object for zalloc and zfree.
+- added deflateReset and inflateReset
+- added a variable zlib_version for consistency checking.
+- renamed the 'filter' parameter of deflateInit2 as 'strategy'.
+  Added Z_FILTERED and Z_HUFFMAN_ONLY constants.
+
+Changes in 0.4:
+- avoid "zip" everywhere, use zlib instead of ziplib.
+- suppress Z_BLOCK_FLUSH, interpret Z_PARTIAL_FLUSH as block flush
+  if compression method == 8.
+- added adler32 and crc32
+- renamed deflateOptions as deflateInit2, call one or the other but not both
+- added the method parameter for deflateInit2.
+- added inflateInit2
+- simplied considerably deflateInit and inflateInit by not supporting
+  user-provided history buffer. This is supported only in deflateInit2
+  and inflateInit2.
+
+Changes in 0.3:
+- prefix all macro names with Z_
+- use Z_FINISH instead of deflateEnd to finish compression.
+- added Z_HUFFMAN_ONLY
+- added gzerror()
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/FAQ b/src/boost/libs/beast/test/extern/zlib-1.2.11/FAQ
new file mode 100644
index 000000000..99b7cf92e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/FAQ
@@ -0,0 +1,368 @@
+
+                Frequently Asked Questions about zlib
+
+
+If your question is not there, please check the zlib home page
+http://zlib.net/ which may have more recent information.
+The lastest zlib FAQ is at http://zlib.net/zlib_faq.html
+
+
+ 1. Is zlib Y2K-compliant?
+
+    Yes. zlib doesn't handle dates.
+
+ 2. Where can I get a Windows DLL version?
+
+    The zlib sources can be compiled without change to produce a DLL.  See the
+    file win32/DLL_FAQ.txt in the zlib distribution.  Pointers to the
+    precompiled DLL are found in the zlib web site at http://zlib.net/ .
+
+ 3. Where can I get a Visual Basic interface to zlib?
+
+    See
+        * http://marknelson.us/1997/01/01/zlib-engine/
+        * win32/DLL_FAQ.txt in the zlib distribution
+
+ 4. compress() returns Z_BUF_ERROR.
+
+    Make sure that before the call of compress(), the length of the compressed
+    buffer is equal to the available size of the compressed buffer and not
+    zero.  For Visual Basic, check that this parameter is passed by reference
+    ("as any"), not by value ("as long").
+
+ 5. deflate() or inflate() returns Z_BUF_ERROR.
+
+    Before making the call, make sure that avail_in and avail_out are not zero.
+    When setting the parameter flush equal to Z_FINISH, also make sure that
+    avail_out is big enough to allow processing all pending input.  Note that a
+    Z_BUF_ERROR is not fatal--another call to deflate() or inflate() can be
+    made with more input or output space.  A Z_BUF_ERROR may in fact be
+    unavoidable depending on how the functions are used, since it is not
+    possible to tell whether or not there is more output pending when
+    strm.avail_out returns with zero.  See http://zlib.net/zlib_how.html for a
+    heavily annotated example.
+
+ 6. Where's the zlib documentation (man pages, etc.)?
+
+    It's in zlib.h .  Examples of zlib usage are in the files test/example.c
+    and test/minigzip.c, with more in examples/ .
+
+ 7. Why don't you use GNU autoconf or libtool or ...?
+
+    Because we would like to keep zlib as a very small and simple package.
+    zlib is rather portable and doesn't need much configuration.
+
+ 8. I found a bug in zlib.
+
+    Most of the time, such problems are due to an incorrect usage of zlib.
+    Please try to reproduce the problem with a small program and send the
+    corresponding source to us at zlib@gzip.org .  Do not send multi-megabyte
+    data files without prior agreement.
+
+ 9. Why do I get "undefined reference to gzputc"?
+
+    If "make test" produces something like
+
+       example.o(.text+0x154): undefined reference to `gzputc'
+
+    check that you don't have old files libz.* in /usr/lib, /usr/local/lib or
+    /usr/X11R6/lib. Remove any old versions, then do "make install".
+
+10. I need a Delphi interface to zlib.
+
+    See the contrib/delphi directory in the zlib distribution.
+
+11. Can zlib handle .zip archives?
+
+    Not by itself, no.  See the directory contrib/minizip in the zlib
+    distribution.
+
+12. Can zlib handle .Z files?
+
+    No, sorry.  You have to spawn an uncompress or gunzip subprocess, or adapt
+    the code of uncompress on your own.
+
+13. How can I make a Unix shared library?
+
+    By default a shared (and a static) library is built for Unix.  So:
+
+    make distclean
+    ./configure
+    make
+
+14. How do I install a shared zlib library on Unix?
+
+    After the above, then:
+
+    make install
+
+    However, many flavors of Unix come with a shared zlib already installed.
+    Before going to the trouble of compiling a shared version of zlib and
+    trying to install it, you may want to check if it's already there!  If you
+    can #include <zlib.h>, it's there.  The -lz option will probably link to
+    it.  You can check the version at the top of zlib.h or with the
+    ZLIB_VERSION symbol defined in zlib.h .
+
+15. I have a question about OttoPDF.
+
+    We are not the authors of OttoPDF. The real author is on the OttoPDF web
+    site: Joel Hainley, jhainley@myndkryme.com.
+
+16. Can zlib decode Flate data in an Adobe PDF file?
+
+    Yes. See http://www.pdflib.com/ . To modify PDF forms, see
+    http://sourceforge.net/projects/acroformtool/ .
+
+17. Why am I getting this "register_frame_info not found" error on Solaris?
+
+    After installing zlib 1.1.4 on Solaris 2.6, running applications using zlib
+    generates an error such as:
+
+        ld.so.1: rpm: fatal: relocation error: file /usr/local/lib/libz.so:
+        symbol __register_frame_info: referenced symbol not found
+
+    The symbol __register_frame_info is not part of zlib, it is generated by
+    the C compiler (cc or gcc).  You must recompile applications using zlib
+    which have this problem.  This problem is specific to Solaris.  See
+    http://www.sunfreeware.com for Solaris versions of zlib and applications
+    using zlib.
+
+18. Why does gzip give an error on a file I make with compress/deflate?
+
+    The compress and deflate functions produce data in the zlib format, which
+    is different and incompatible with the gzip format.  The gz* functions in
+    zlib on the other hand use the gzip format.  Both the zlib and gzip formats
+    use the same compressed data format internally, but have different headers
+    and trailers around the compressed data.
+
+19. Ok, so why are there two different formats?
+
+    The gzip format was designed to retain the directory information about a
+    single file, such as the name and last modification date.  The zlib format
+    on the other hand was designed for in-memory and communication channel
+    applications, and has a much more compact header and trailer and uses a
+    faster integrity check than gzip.
+
+20. Well that's nice, but how do I make a gzip file in memory?
+
+    You can request that deflate write the gzip format instead of the zlib
+    format using deflateInit2().  You can also request that inflate decode the
+    gzip format using inflateInit2().  Read zlib.h for more details.
+
+21. Is zlib thread-safe?
+
+    Yes.  However any library routines that zlib uses and any application-
+    provided memory allocation routines must also be thread-safe.  zlib's gz*
+    functions use stdio library routines, and most of zlib's functions use the
+    library memory allocation routines by default.  zlib's *Init* functions
+    allow for the application to provide custom memory allocation routines.
+
+    Of course, you should only operate on any given zlib or gzip stream from a
+    single thread at a time.
+
+22. Can I use zlib in my commercial application?
+
+    Yes.  Please read the license in zlib.h.
+
+23. Is zlib under the GNU license?
+
+    No.  Please read the license in zlib.h.
+
+24. The license says that altered source versions must be "plainly marked". So
+    what exactly do I need to do to meet that requirement?
+
+    You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h.  In
+    particular, the final version number needs to be changed to "f", and an
+    identification string should be appended to ZLIB_VERSION.  Version numbers
+    x.x.x.f are reserved for modifications to zlib by others than the zlib
+    maintainers.  For example, if the version of the base zlib you are altering
+    is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and
+    ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3".  You can also
+    update the version strings in deflate.c and inftrees.c.
+
+    For altered source distributions, you should also note the origin and
+    nature of the changes in zlib.h, as well as in ChangeLog and README, along
+    with the dates of the alterations.  The origin should include at least your
+    name (or your company's name), and an email address to contact for help or
+    issues with the library.
+
+    Note that distributing a compiled zlib library along with zlib.h and
+    zconf.h is also a source distribution, and so you should change
+    ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes
+    in zlib.h as you would for a full source distribution.
+
+25. Will zlib work on a big-endian or little-endian architecture, and can I
+    exchange compressed data between them?
+
+    Yes and yes.
+
+26. Will zlib work on a 64-bit machine?
+
+    Yes.  It has been tested on 64-bit machines, and has no dependence on any
+    data types being limited to 32-bits in length.  If you have any
+    difficulties, please provide a complete problem report to zlib@gzip.org
+
+27. Will zlib decompress data from the PKWare Data Compression Library?
+
+    No.  The PKWare DCL uses a completely different compressed data format than
+    does PKZIP and zlib.  However, you can look in zlib's contrib/blast
+    directory for a possible solution to your problem.
+
+28. Can I access data randomly in a compressed stream?
+
+    No, not without some preparation.  If when compressing you periodically use
+    Z_FULL_FLUSH, carefully write all the pending data at those points, and
+    keep an index of those locations, then you can start decompression at those
+    points.  You have to be careful to not use Z_FULL_FLUSH too often, since it
+    can significantly degrade compression.  Alternatively, you can scan a
+    deflate stream once to generate an index, and then use that index for
+    random access.  See examples/zran.c .
+
+29. Does zlib work on MVS, OS/390, CICS, etc.?
+
+    It has in the past, but we have not heard of any recent evidence.  There
+    were working ports of zlib 1.1.4 to MVS, but those links no longer work.
+    If you know of recent, successful applications of zlib on these operating
+    systems, please let us know.  Thanks.
+
+30. Is there some simpler, easier to read version of inflate I can look at to
+    understand the deflate format?
+
+    First off, you should read RFC 1951.  Second, yes.  Look in zlib's
+    contrib/puff directory.
+
+31. Does zlib infringe on any patents?
+
+    As far as we know, no.  In fact, that was originally the whole point behind
+    zlib.  Look here for some more information:
+
+    http://www.gzip.org/#faq11
+
+32. Can zlib work with greater than 4 GB of data?
+
+    Yes.  inflate() and deflate() will process any amount of data correctly.
+    Each call of inflate() or deflate() is limited to input and output chunks
+    of the maximum value that can be stored in the compiler's "unsigned int"
+    type, but there is no limit to the number of chunks.  Note however that the
+    strm.total_in and strm_total_out counters may be limited to 4 GB.  These
+    counters are provided as a convenience and are not used internally by
+    inflate() or deflate().  The application can easily set up its own counters
+    updated after each call of inflate() or deflate() to count beyond 4 GB.
+    compress() and uncompress() may be limited to 4 GB, since they operate in a
+    single call.  gzseek() and gztell() may be limited to 4 GB depending on how
+    zlib is compiled.  See the zlibCompileFlags() function in zlib.h.
+
+    The word "may" appears several times above since there is a 4 GB limit only
+    if the compiler's "long" type is 32 bits.  If the compiler's "long" type is
+    64 bits, then the limit is 16 exabytes.
+
+33. Does zlib have any security vulnerabilities?
+
+    The only one that we are aware of is potentially in gzprintf().  If zlib is
+    compiled to use sprintf() or vsprintf(), then there is no protection
+    against a buffer overflow of an 8K string space (or other value as set by
+    gzbuffer()), other than the caller of gzprintf() assuring that the output
+    will not exceed 8K.  On the other hand, if zlib is compiled to use
+    snprintf() or vsnprintf(), which should normally be the case, then there is
+    no vulnerability.  The ./configure script will display warnings if an
+    insecure variation of sprintf() will be used by gzprintf().  Also the
+    zlibCompileFlags() function will return information on what variant of
+    sprintf() is used by gzprintf().
+
+    If you don't have snprintf() or vsnprintf() and would like one, you can
+    find a portable implementation here:
+
+        http://www.ijs.si/software/snprintf/
+
+    Note that you should be using the most recent version of zlib.  Versions
+    1.1.3 and before were subject to a double-free vulnerability, and versions
+    1.2.1 and 1.2.2 were subject to an access exception when decompressing
+    invalid compressed data.
+
+34. Is there a Java version of zlib?
+
+    Probably what you want is to use zlib in Java. zlib is already included
+    as part of the Java SDK in the java.util.zip package. If you really want
+    a version of zlib written in the Java language, look on the zlib home
+    page for links: http://zlib.net/ .
+
+35. I get this or that compiler or source-code scanner warning when I crank it
+    up to maximally-pedantic. Can't you guys write proper code?
+
+    Many years ago, we gave up attempting to avoid warnings on every compiler
+    in the universe.  It just got to be a waste of time, and some compilers
+    were downright silly as well as contradicted each other.  So now, we simply
+    make sure that the code always works.
+
+36. Valgrind (or some similar memory access checker) says that deflate is
+    performing a conditional jump that depends on an uninitialized value.
+    Isn't that a bug?
+
+    No.  That is intentional for performance reasons, and the output of deflate
+    is not affected.  This only started showing up recently since zlib 1.2.x
+    uses malloc() by default for allocations, whereas earlier versions used
+    calloc(), which zeros out the allocated memory.  Even though the code was
+    correct, versions 1.2.4 and later was changed to not stimulate these
+    checkers.
+
+37. Will zlib read the (insert any ancient or arcane format here) compressed
+    data format?
+
+    Probably not. Look in the comp.compression FAQ for pointers to various
+    formats and associated software.
+
+38. How can I encrypt/decrypt zip files with zlib?
+
+    zlib doesn't support encryption.  The original PKZIP encryption is very
+    weak and can be broken with freely available programs.  To get strong
+    encryption, use GnuPG, http://www.gnupg.org/ , which already includes zlib
+    compression.  For PKZIP compatible "encryption", look at
+    http://www.info-zip.org/
+
+39. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings?
+
+    "gzip" is the gzip format, and "deflate" is the zlib format.  They should
+    probably have called the second one "zlib" instead to avoid confusion with
+    the raw deflate compressed data format.  While the HTTP 1.1 RFC 2616
+    correctly points to the zlib specification in RFC 1950 for the "deflate"
+    transfer encoding, there have been reports of servers and browsers that
+    incorrectly produce or expect raw deflate data per the deflate
+    specification in RFC 1951, most notably Microsoft.  So even though the
+    "deflate" transfer encoding using the zlib format would be the more
+    efficient approach (and in fact exactly what the zlib format was designed
+    for), using the "gzip" transfer encoding is probably more reliable due to
+    an unfortunate choice of name on the part of the HTTP 1.1 authors.
+
+    Bottom line: use the gzip format for HTTP 1.1 encoding.
+
+40. Does zlib support the new "Deflate64" format introduced by PKWare?
+
+    No.  PKWare has apparently decided to keep that format proprietary, since
+    they have not documented it as they have previous compression formats.  In
+    any case, the compression improvements are so modest compared to other more
+    modern approaches, that it's not worth the effort to implement.
+
+41. I'm having a problem with the zip functions in zlib, can you help?
+
+    There are no zip functions in zlib.  You are probably using minizip by
+    Giles Vollant, which is found in the contrib directory of zlib.  It is not
+    part of zlib.  In fact none of the stuff in contrib is part of zlib.  The
+    files in there are not supported by the zlib authors.  You need to contact
+    the authors of the respective contribution for help.
+
+42. The match.asm code in contrib is under the GNU General Public License.
+    Since it's part of zlib, doesn't that mean that all of zlib falls under the
+    GNU GPL?
+
+    No.  The files in contrib are not part of zlib.  They were contributed by
+    other authors and are provided as a convenience to the user within the zlib
+    distribution.  Each item in contrib has its own license.
+
+43. Is zlib subject to export controls?  What is its ECCN?
+
+    zlib is not subject to export controls, and so is classified as EAR99.
+
+44. Can you please sign these lengthy legal documents and fax them back to us
+    so that we can use your software in our product?
+
+    No. Go away. Shoo.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/INDEX b/src/boost/libs/beast/test/extern/zlib-1.2.11/INDEX
new file mode 100644
index 000000000..2ba064120
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/INDEX
@@ -0,0 +1,68 @@
+CMakeLists.txt  cmake build file
+ChangeLog       history of changes
+FAQ             Frequently Asked Questions about zlib
+INDEX           this file
+Makefile        dummy Makefile that tells you to ./configure
+Makefile.in     template for Unix Makefile
+README          guess what
+configure       configure script for Unix
+make_vms.com    makefile for VMS
+test/example.c  zlib usages examples for build testing
+test/minigzip.c minimal gzip-like functionality for build testing
+test/infcover.c inf*.c code coverage for build coverage testing
+treebuild.xml   XML description of source file dependencies
+zconf.h.cmakein zconf.h template for cmake
+zconf.h.in      zconf.h template for configure
+zlib.3          Man page for zlib
+zlib.3.pdf      Man page in PDF format
+zlib.map        Linux symbol information
+zlib.pc.in      Template for pkg-config descriptor
+zlib.pc.cmakein zlib.pc template for cmake
+zlib2ansi       perl script to convert source files for C++ compilation
+
+amiga/          makefiles for Amiga SAS C
+as400/          makefiles for AS/400
+doc/            documentation for formats and algorithms
+msdos/          makefiles for MSDOS
+nintendods/     makefile for Nintendo DS
+old/            makefiles for various architectures and zlib documentation
+                files that have not yet been updated for zlib 1.2.x
+qnx/            makefiles for QNX
+watcom/         makefiles for OpenWatcom
+win32/          makefiles for Windows
+
+                zlib public header files (required for library use):
+zconf.h
+zlib.h
+
+                private source files used to build the zlib library:
+adler32.c
+compress.c
+crc32.c
+crc32.h
+deflate.c
+deflate.h
+gzclose.c
+gzguts.h
+gzlib.c
+gzread.c
+gzwrite.c
+infback.c
+inffast.c
+inffast.h
+inffixed.h
+inflate.c
+inflate.h
+inftrees.c
+inftrees.h
+trees.c
+trees.h
+uncompr.c
+zutil.c
+zutil.h
+
+                source files for sample programs
+See examples/README.examples
+
+                unsupported contributions by third parties
+See contrib/README.contrib
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/Makefile b/src/boost/libs/beast/test/extern/zlib-1.2.11/Makefile
new file mode 100644
index 000000000..6bba86c73
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/Makefile
@@ -0,0 +1,5 @@
+all:
+	-@echo "Please use ./configure first.  Thank you."
+
+distclean:
+	make -f Makefile.in distclean
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/Makefile.in b/src/boost/libs/beast/test/extern/zlib-1.2.11/Makefile.in
new file mode 100644
index 000000000..5a77949ff
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/Makefile.in
@@ -0,0 +1,410 @@
+# Makefile for zlib
+# Copyright (C) 1995-2017 Jean-loup Gailly, Mark Adler
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile and test, type:
+#    ./configure; make test
+# Normally configure builds both a static and a shared library.
+# If you want to build just a static library, use: ./configure --static
+
+# To use the asm code, type:
+#    cp contrib/asm?86/match.S ./match.S
+#    make LOC=-DASMV OBJA=match.o
+
+# To install /usr/local/lib/libz.* and /usr/local/include/zlib.h, type:
+#    make install
+# To install in $HOME instead of /usr/local, use:
+#    make install prefix=$HOME
+
+CC=cc
+
+CFLAGS=-O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DZLIB_DEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+SFLAGS=-O
+LDFLAGS=
+TEST_LDFLAGS=-L. libz.a
+LDSHARED=$(CC)
+CPP=$(CC) -E
+
+STATICLIB=libz.a
+SHAREDLIB=libz.so
+SHAREDLIBV=libz.so.1.2.11
+SHAREDLIBM=libz.so.1
+LIBS=$(STATICLIB) $(SHAREDLIBV)
+
+AR=ar
+ARFLAGS=rc
+RANLIB=ranlib
+LDCONFIG=ldconfig
+LDSHAREDLIBC=-lc
+TAR=tar
+SHELL=/bin/sh
+EXE=
+
+prefix = /usr/local
+exec_prefix = ${prefix}
+libdir = ${exec_prefix}/lib
+sharedlibdir = ${libdir}
+includedir = ${prefix}/include
+mandir = ${prefix}/share/man
+man3dir = ${mandir}/man3
+pkgconfigdir = ${libdir}/pkgconfig
+SRCDIR=
+ZINC=
+ZINCOUT=-I.
+
+OBJZ = adler32.o crc32.o deflate.o infback.o inffast.o inflate.o inftrees.o trees.o zutil.o
+OBJG = compress.o uncompr.o gzclose.o gzlib.o gzread.o gzwrite.o
+OBJC = $(OBJZ) $(OBJG)
+
+PIC_OBJZ = adler32.lo crc32.lo deflate.lo infback.lo inffast.lo inflate.lo inftrees.lo trees.lo zutil.lo
+PIC_OBJG = compress.lo uncompr.lo gzclose.lo gzlib.lo gzread.lo gzwrite.lo
+PIC_OBJC = $(PIC_OBJZ) $(PIC_OBJG)
+
+# to use the asm code: make OBJA=match.o, PIC_OBJA=match.lo
+OBJA =
+PIC_OBJA =
+
+OBJS = $(OBJC) $(OBJA)
+
+PIC_OBJS = $(PIC_OBJC) $(PIC_OBJA)
+
+all: static shared
+
+static: example$(EXE) minigzip$(EXE)
+
+shared: examplesh$(EXE) minigzipsh$(EXE)
+
+all64: example64$(EXE) minigzip64$(EXE)
+
+check: test
+
+test: all teststatic testshared
+
+teststatic: static
+	@TMPST=tmpst_$$; \
+	if echo hello world | ./minigzip | ./minigzip -d && ./example $$TMPST ; then \
+	  echo '		*** zlib test OK ***'; \
+	else \
+	  echo '		*** zlib test FAILED ***'; false; \
+	fi; \
+	rm -f $$TMPST
+
+testshared: shared
+	@LD_LIBRARY_PATH=`pwd`:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
+	LD_LIBRARYN32_PATH=`pwd`:$(LD_LIBRARYN32_PATH) ; export LD_LIBRARYN32_PATH; \
+	DYLD_LIBRARY_PATH=`pwd`:$(DYLD_LIBRARY_PATH) ; export DYLD_LIBRARY_PATH; \
+	SHLIB_PATH=`pwd`:$(SHLIB_PATH) ; export SHLIB_PATH; \
+	TMPSH=tmpsh_$$; \
+	if echo hello world | ./minigzipsh | ./minigzipsh -d && ./examplesh $$TMPSH; then \
+	  echo '		*** zlib shared test OK ***'; \
+	else \
+	  echo '		*** zlib shared test FAILED ***'; false; \
+	fi; \
+	rm -f $$TMPSH
+
+test64: all64
+	@TMP64=tmp64_$$; \
+	if echo hello world | ./minigzip64 | ./minigzip64 -d && ./example64 $$TMP64; then \
+	  echo '		*** zlib 64-bit test OK ***'; \
+	else \
+	  echo '		*** zlib 64-bit test FAILED ***'; false; \
+	fi; \
+	rm -f $$TMP64
+
+infcover.o: $(SRCDIR)test/infcover.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/infcover.c
+
+infcover: infcover.o libz.a
+	$(CC) $(CFLAGS) -o $@ infcover.o libz.a
+
+cover: infcover
+	rm -f *.gcda
+	./infcover
+	gcov inf*.c
+
+libz.a: $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+
+match.o: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c _match.s
+	mv _match.o match.o
+	rm -f _match.s
+
+match.lo: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c -fPIC _match.s
+	mv _match.o match.lo
+	rm -f _match.s
+
+example.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/example.c
+
+minigzip.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -c -o $@ $(SRCDIR)test/minigzip.c
+
+example64.o: $(SRCDIR)test/example.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/example.c
+
+minigzip64.o: $(SRCDIR)test/minigzip.c $(SRCDIR)zlib.h zconf.h
+	$(CC) $(CFLAGS) $(ZINCOUT) -D_FILE_OFFSET_BITS=64 -c -o $@ $(SRCDIR)test/minigzip.c
+
+
+adler32.o: $(SRCDIR)adler32.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)adler32.c
+
+crc32.o: $(SRCDIR)crc32.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)crc32.c
+
+deflate.o: $(SRCDIR)deflate.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)deflate.c
+
+infback.o: $(SRCDIR)infback.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)infback.c
+
+inffast.o: $(SRCDIR)inffast.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inffast.c
+
+inflate.o: $(SRCDIR)inflate.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inflate.c
+
+inftrees.o: $(SRCDIR)inftrees.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)inftrees.c
+
+trees.o: $(SRCDIR)trees.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)trees.c
+
+zutil.o: $(SRCDIR)zutil.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)zutil.c
+
+compress.o: $(SRCDIR)compress.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)compress.c
+
+uncompr.o: $(SRCDIR)uncompr.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)uncompr.c
+
+gzclose.o: $(SRCDIR)gzclose.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzclose.c
+
+gzlib.o: $(SRCDIR)gzlib.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzlib.c
+
+gzread.o: $(SRCDIR)gzread.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzread.c
+
+gzwrite.o: $(SRCDIR)gzwrite.c
+	$(CC) $(CFLAGS) $(ZINC) -c -o $@ $(SRCDIR)gzwrite.c
+
+
+adler32.lo: $(SRCDIR)adler32.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/adler32.o $(SRCDIR)adler32.c
+	-@mv objs/adler32.o $@
+
+crc32.lo: $(SRCDIR)crc32.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/crc32.o $(SRCDIR)crc32.c
+	-@mv objs/crc32.o $@
+
+deflate.lo: $(SRCDIR)deflate.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/deflate.o $(SRCDIR)deflate.c
+	-@mv objs/deflate.o $@
+
+infback.lo: $(SRCDIR)infback.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/infback.o $(SRCDIR)infback.c
+	-@mv objs/infback.o $@
+
+inffast.lo: $(SRCDIR)inffast.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inffast.o $(SRCDIR)inffast.c
+	-@mv objs/inffast.o $@
+
+inflate.lo: $(SRCDIR)inflate.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inflate.o $(SRCDIR)inflate.c
+	-@mv objs/inflate.o $@
+
+inftrees.lo: $(SRCDIR)inftrees.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/inftrees.o $(SRCDIR)inftrees.c
+	-@mv objs/inftrees.o $@
+
+trees.lo: $(SRCDIR)trees.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/trees.o $(SRCDIR)trees.c
+	-@mv objs/trees.o $@
+
+zutil.lo: $(SRCDIR)zutil.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/zutil.o $(SRCDIR)zutil.c
+	-@mv objs/zutil.o $@
+
+compress.lo: $(SRCDIR)compress.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/compress.o $(SRCDIR)compress.c
+	-@mv objs/compress.o $@
+
+uncompr.lo: $(SRCDIR)uncompr.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/uncompr.o $(SRCDIR)uncompr.c
+	-@mv objs/uncompr.o $@
+
+gzclose.lo: $(SRCDIR)gzclose.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzclose.o $(SRCDIR)gzclose.c
+	-@mv objs/gzclose.o $@
+
+gzlib.lo: $(SRCDIR)gzlib.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzlib.o $(SRCDIR)gzlib.c
+	-@mv objs/gzlib.o $@
+
+gzread.lo: $(SRCDIR)gzread.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzread.o $(SRCDIR)gzread.c
+	-@mv objs/gzread.o $@
+
+gzwrite.lo: $(SRCDIR)gzwrite.c
+	-@mkdir objs 2>/dev/null || test -d objs
+	$(CC) $(SFLAGS) $(ZINC) -DPIC -c -o objs/gzwrite.o $(SRCDIR)gzwrite.c
+	-@mv objs/gzwrite.o $@
+
+
+placebo $(SHAREDLIBV): $(PIC_OBJS) libz.a
+	$(LDSHARED) $(SFLAGS) -o $@ $(PIC_OBJS) $(LDSHAREDLIBC) $(LDFLAGS)
+	rm -f $(SHAREDLIB) $(SHAREDLIBM)
+	ln -s $@ $(SHAREDLIB)
+	ln -s $@ $(SHAREDLIBM)
+	-@rmdir objs
+
+example$(EXE): example.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
+
+minigzip$(EXE): minigzip.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
+
+examplesh$(EXE): example.o $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
+
+minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
+
+example64$(EXE): example64.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
+
+minigzip64$(EXE): minigzip64.o $(STATICLIB)
+	$(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS)
+
+install-libs: $(LIBS)
+	-@if [ ! -d $(DESTDIR)$(exec_prefix)  ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi
+	-@if [ ! -d $(DESTDIR)$(libdir)       ]; then mkdir -p $(DESTDIR)$(libdir); fi
+	-@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
+	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
+	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+	rm -f $(DESTDIR)$(libdir)/$(STATICLIB)
+	cp $(STATICLIB) $(DESTDIR)$(libdir)
+	chmod 644 $(DESTDIR)$(libdir)/$(STATICLIB)
+	-@($(RANLIB) $(DESTDIR)$(libdir)/libz.a || true) >/dev/null 2>&1
+	-@if test -n "$(SHAREDLIBV)"; then \
+	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+	  cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir); \
+	  echo "cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)"; \
+	  chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV); \
+	  echo "chmod 755 $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBV)"; \
+	  rm -f $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIB); \
+	  ln -s $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)/$(SHAREDLIBM); \
+	  ($(LDCONFIG) || true)  >/dev/null 2>&1; \
+	fi
+	rm -f $(DESTDIR)$(man3dir)/zlib.3
+	cp $(SRCDIR)zlib.3 $(DESTDIR)$(man3dir)
+	chmod 644 $(DESTDIR)$(man3dir)/zlib.3
+	rm -f $(DESTDIR)$(pkgconfigdir)/zlib.pc
+	cp zlib.pc $(DESTDIR)$(pkgconfigdir)
+	chmod 644 $(DESTDIR)$(pkgconfigdir)/zlib.pc
+# The ranlib in install is needed on NeXTSTEP which checks file times
+# ldconfig is for Linux
+
+install: install-libs
+	-@if [ ! -d $(DESTDIR)$(includedir)   ]; then mkdir -p $(DESTDIR)$(includedir); fi
+	rm -f $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
+	cp $(SRCDIR)zlib.h zconf.h $(DESTDIR)$(includedir)
+	chmod 644 $(DESTDIR)$(includedir)/zlib.h $(DESTDIR)$(includedir)/zconf.h
+
+uninstall:
+	cd $(DESTDIR)$(includedir) && rm -f zlib.h zconf.h
+	cd $(DESTDIR)$(libdir) && rm -f libz.a; \
+	if test -n "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
+	  rm -f $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM); \
+	fi
+	cd $(DESTDIR)$(man3dir) && rm -f zlib.3
+	cd $(DESTDIR)$(pkgconfigdir) && rm -f zlib.pc
+
+docs: zlib.3.pdf
+
+zlib.3.pdf: $(SRCDIR)zlib.3
+	groff -mandoc -f H -T ps $(SRCDIR)zlib.3 | ps2pdf - $@
+
+zconf.h.cmakein: $(SRCDIR)zconf.h.in
+	-@ TEMPFILE=zconfh_$$; \
+	echo "/#define ZCONF_H/ a\\\\\n#cmakedefine Z_PREFIX\\\\\n#cmakedefine Z_HAVE_UNISTD_H\n" >> $$TEMPFILE &&\
+	sed -f $$TEMPFILE $(SRCDIR)zconf.h.in > $@ &&\
+	touch -r $(SRCDIR)zconf.h.in $@ &&\
+	rm $$TEMPFILE
+
+zconf: $(SRCDIR)zconf.h.in
+	cp -p $(SRCDIR)zconf.h.in zconf.h
+
+mostlyclean: clean
+clean:
+	rm -f *.o *.lo *~ \
+	   example$(EXE) minigzip$(EXE) examplesh$(EXE) minigzipsh$(EXE) \
+	   example64$(EXE) minigzip64$(EXE) \
+	   infcover \
+	   libz.* foo.gz so_locations \
+	   _match.s maketree contrib/infback9/*.o
+	rm -rf objs
+	rm -f *.gcda *.gcno *.gcov
+	rm -f contrib/infback9/*.gcda contrib/infback9/*.gcno contrib/infback9/*.gcov
+
+maintainer-clean: distclean
+distclean: clean zconf zconf.h.cmakein docs
+	rm -f Makefile zlib.pc configure.log
+	-@rm -f .DS_Store
+	@if [ -f Makefile.in ]; then \
+	printf 'all:\n\t-@echo "Please use ./configure first.  Thank you."\n' > Makefile ; \
+	printf '\ndistclean:\n\tmake -f Makefile.in distclean\n' >> Makefile ; \
+	touch -r $(SRCDIR)Makefile.in Makefile ; fi
+	@if [ ! -f zconf.h.in ]; then rm -f zconf.h zconf.h.cmakein ; fi
+	@if [ ! -f zlib.3 ]; then rm -f zlib.3.pdf ; fi
+
+tags:
+	etags $(SRCDIR)*.[ch]
+
+adler32.o zutil.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+gzclose.o gzlib.o gzread.o gzwrite.o: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
+compress.o example.o minigzip.o uncompr.o: $(SRCDIR)zlib.h zconf.h
+crc32.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
+deflate.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+infback.o inflate.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
+inffast.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h
+inftrees.o: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h
+trees.o: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h
+
+adler32.lo zutil.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+gzclose.lo gzlib.lo gzread.lo gzwrite.lo: $(SRCDIR)zlib.h zconf.h $(SRCDIR)gzguts.h
+compress.lo example.lo minigzip.lo uncompr.lo: $(SRCDIR)zlib.h zconf.h
+crc32.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)crc32.h
+deflate.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h
+infback.lo inflate.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h $(SRCDIR)inffixed.h
+inffast.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h $(SRCDIR)inflate.h $(SRCDIR)inffast.h
+inftrees.lo: $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)inftrees.h
+trees.lo: $(SRCDIR)deflate.h $(SRCDIR)zutil.h $(SRCDIR)zlib.h zconf.h $(SRCDIR)trees.h
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/README
new file mode 100644
index 000000000..51106de47
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/README
@@ -0,0 +1,115 @@
+ZLIB DATA COMPRESSION LIBRARY
+
+zlib 1.2.11 is a general purpose data compression library.  All the code is
+thread safe.  The data format used by the zlib library is described by RFCs
+(Request for Comments) 1950 to 1952 in the files
+http://tools.ietf.org/html/rfc1950 (zlib format), rfc1951 (deflate format) and
+rfc1952 (gzip format).
+
+All functions of the compression library are documented in the file zlib.h
+(volunteer to write man pages welcome, contact zlib@gzip.org).  A usage example
+of the library is given in the file test/example.c which also tests that
+the library is working correctly.  Another example is given in the file
+test/minigzip.c.  The compression library itself is composed of all source
+files in the root directory.
+
+To compile all files and run the test program, follow the instructions given at
+the top of Makefile.in.  In short "./configure; make test", and if that goes
+well, "make install" should work for most flavors of Unix.  For Windows, use
+one of the special makefiles in win32/ or contrib/vstudio/ .  For VMS, use
+make_vms.com.
+
+Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant
+<info@winimage.com> for the Windows DLL version.  The zlib home page is
+http://zlib.net/ .  Before reporting a problem, please check this site to
+verify that you have the latest version of zlib; otherwise get the latest
+version and check whether the problem still exists or not.
+
+PLEASE read the zlib FAQ http://zlib.net/zlib_faq.html before asking for help.
+
+Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
+issue of Dr.  Dobb's Journal; a copy of the article is available at
+http://marknelson.us/1997/01/01/zlib-engine/ .
+
+The changes made in version 1.2.11 are documented in the file ChangeLog.
+
+Unsupported third party contributions are provided in directory contrib/ .
+
+zlib is available in Java using the java.util.zip package, documented at
+http://java.sun.com/developer/technicalArticles/Programming/compression/ .
+
+A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is available
+at CPAN (Comprehensive Perl Archive Network) sites, including
+http://search.cpan.org/~pmqs/IO-Compress-Zlib/ .
+
+A Python interface to zlib written by A.M. Kuchling <amk@amk.ca> is
+available in Python 1.5 and later versions, see
+http://docs.python.org/library/zlib.html .
+
+zlib is built into tcl: http://wiki.tcl.tk/4610 .
+
+An experimental package to read and write files in .zip format, written on top
+of zlib by Gilles Vollant <info@winimage.com>, is available in the
+contrib/minizip directory of zlib.
+
+
+Notes for some targets:
+
+- For Windows DLL versions, please see win32/DLL_FAQ.txt
+
+- For 64-bit Irix, deflate.c must be compiled without any optimization. With
+  -O, one libpng test fails. The test works in 32 bit mode (with the -n32
+  compiler flag). The compiler bug has been reported to SGI.
+
+- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works
+  when compiled with cc.
+
+- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is
+  necessary to get gzprintf working correctly. This is done by configure.
+
+- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with
+  other compilers. Use "make test" to check your compiler.
+
+- gzdopen is not supported on RISCOS or BEOS.
+
+- For PalmOs, see http://palmzlib.sourceforge.net/
+
+
+Acknowledgments:
+
+  The deflate format used by zlib was defined by Phil Katz.  The deflate and
+  zlib specifications were written by L.  Peter Deutsch.  Thanks to all the
+  people who reported problems and suggested various improvements in zlib; they
+  are too numerous to cite here.
+
+Copyright notice:
+
+ (C) 1995-2017 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+If you use the zlib library in a product, we would appreciate *not* receiving
+lengthy legal documents to sign.  The sources are provided for free but without
+warranty of any kind.  The library has been entirely written by Jean-loup
+Gailly and Mark Adler; it does not include third-party code.
+
+If you redistribute modified sources, we would appreciate that you include in
+the file ChangeLog history information documenting your changes.  Please read
+the FAQ for more information on the distribution of modified source versions.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/adler32.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/adler32.c
new file mode 100644
index 000000000..d0be4380a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/adler32.c
@@ -0,0 +1,186 @@
+/* adler32.c -- compute the Adler-32 checksum of a data stream
+ * Copyright (C) 1995-2011, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zutil.h"
+
+local uLong adler32_combine_ OF((uLong adler1, uLong adler2, z_off64_t len2));
+
+#define BASE 65521U     /* largest prime smaller than 65536 */
+#define NMAX 5552
+/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
+
+#define DO1(buf,i)  {adler += (buf)[i]; sum2 += adler;}
+#define DO2(buf,i)  DO1(buf,i); DO1(buf,i+1);
+#define DO4(buf,i)  DO2(buf,i); DO2(buf,i+2);
+#define DO8(buf,i)  DO4(buf,i); DO4(buf,i+4);
+#define DO16(buf)   DO8(buf,0); DO8(buf,8);
+
+/* use NO_DIVIDE if your processor does not do division in hardware --
+   try it both ways to see which is faster */
+#ifdef NO_DIVIDE
+/* note that this assumes BASE is 65521, where 65536 % 65521 == 15
+   (thank you to John Reiser for pointing this out) */
+#  define CHOP(a) \
+    do { \
+        unsigned long tmp = a >> 16; \
+        a &= 0xffffUL; \
+        a += (tmp << 4) - tmp; \
+    } while (0)
+#  define MOD28(a) \
+    do { \
+        CHOP(a); \
+        if (a >= BASE) a -= BASE; \
+    } while (0)
+#  define MOD(a) \
+    do { \
+        CHOP(a); \
+        MOD28(a); \
+    } while (0)
+#  define MOD63(a) \
+    do { /* this assumes a is not negative */ \
+        z_off64_t tmp = a >> 32; \
+        a &= 0xffffffffL; \
+        a += (tmp << 8) - (tmp << 5) + tmp; \
+        tmp = a >> 16; \
+        a &= 0xffffL; \
+        a += (tmp << 4) - tmp; \
+        tmp = a >> 16; \
+        a &= 0xffffL; \
+        a += (tmp << 4) - tmp; \
+        if (a >= BASE) a -= BASE; \
+    } while (0)
+#else
+#  define MOD(a) a %= BASE
+#  define MOD28(a) a %= BASE
+#  define MOD63(a) a %= BASE
+#endif
+
+/* ========================================================================= */
+uLong ZEXPORT adler32_z(adler, buf, len)
+    uLong adler;
+    const Bytef *buf;
+    z_size_t len;
+{
+    unsigned long sum2;
+    unsigned n;
+
+    /* split Adler-32 into component sums */
+    sum2 = (adler >> 16) & 0xffff;
+    adler &= 0xffff;
+
+    /* in case user likes doing a byte at a time, keep it fast */
+    if (len == 1) {
+        adler += buf[0];
+        if (adler >= BASE)
+            adler -= BASE;
+        sum2 += adler;
+        if (sum2 >= BASE)
+            sum2 -= BASE;
+        return adler | (sum2 << 16);
+    }
+
+    /* initial Adler-32 value (deferred check for len == 1 speed) */
+    if (buf == Z_NULL)
+        return 1L;
+
+    /* in case short lengths are provided, keep it somewhat fast */
+    if (len < 16) {
+        while (len--) {
+            adler += *buf++;
+            sum2 += adler;
+        }
+        if (adler >= BASE)
+            adler -= BASE;
+        MOD28(sum2);            /* only added so many BASE's */
+        return adler | (sum2 << 16);
+    }
+
+    /* do length NMAX blocks -- requires just one modulo operation */
+    while (len >= NMAX) {
+        len -= NMAX;
+        n = NMAX / 16;          /* NMAX is divisible by 16 */
+        do {
+            DO16(buf);          /* 16 sums unrolled */
+            buf += 16;
+        } while (--n);
+        MOD(adler);
+        MOD(sum2);
+    }
+
+    /* do remaining bytes (less than NMAX, still just one modulo) */
+    if (len) {                  /* avoid modulos if none remaining */
+        while (len >= 16) {
+            len -= 16;
+            DO16(buf);
+            buf += 16;
+        }
+        while (len--) {
+            adler += *buf++;
+            sum2 += adler;
+        }
+        MOD(adler);
+        MOD(sum2);
+    }
+
+    /* return recombined sums */
+    return adler | (sum2 << 16);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT adler32(adler, buf, len)
+    uLong adler;
+    const Bytef *buf;
+    uInt len;
+{
+    return adler32_z(adler, buf, len);
+}
+
+/* ========================================================================= */
+local uLong adler32_combine_(adler1, adler2, len2)
+    uLong adler1;
+    uLong adler2;
+    z_off64_t len2;
+{
+    unsigned long sum1;
+    unsigned long sum2;
+    unsigned rem;
+
+    /* for negative len, return invalid adler32 as a clue for debugging */
+    if (len2 < 0)
+        return 0xffffffffUL;
+
+    /* the derivation of this formula is left as an exercise for the reader */
+    MOD63(len2);                /* assumes len2 >= 0 */
+    rem = (unsigned)len2;
+    sum1 = adler1 & 0xffff;
+    sum2 = rem * sum1;
+    MOD(sum2);
+    sum1 += (adler2 & 0xffff) + BASE - 1;
+    sum2 += ((adler1 >> 16) & 0xffff) + ((adler2 >> 16) & 0xffff) + BASE - rem;
+    if (sum1 >= BASE) sum1 -= BASE;
+    if (sum1 >= BASE) sum1 -= BASE;
+    if (sum2 >= ((unsigned long)BASE << 1)) sum2 -= ((unsigned long)BASE << 1);
+    if (sum2 >= BASE) sum2 -= BASE;
+    return sum1 | (sum2 << 16);
+}
+
+/* ========================================================================= */
+uLong ZEXPORT adler32_combine(adler1, adler2, len2)
+    uLong adler1;
+    uLong adler2;
+    z_off_t len2;
+{
+    return adler32_combine_(adler1, adler2, len2);
+}
+
+uLong ZEXPORT adler32_combine64(adler1, adler2, len2)
+    uLong adler1;
+    uLong adler2;
+    z_off64_t len2;
+{
+    return adler32_combine_(adler1, adler2, len2);
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/amiga/Makefile.pup b/src/boost/libs/beast/test/extern/zlib-1.2.11/amiga/Makefile.pup
new file mode 100644
index 000000000..8940c120f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/amiga/Makefile.pup
@@ -0,0 +1,69 @@
+# Amiga powerUP (TM) Makefile
+# makefile for libpng and SAS C V6.58/7.00 PPC compiler
+# Copyright (C) 1998 by Andreas R. Kleinert
+
+LIBNAME	= libzip.a
+
+CC	= scppc
+CFLAGS	= NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL \
+	  OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8 NOVER
+AR	= ppc-amigaos-ar cr
+RANLIB	= ppc-amigaos-ranlib
+LD	= ppc-amigaos-ld -r
+LDFLAGS	= -o
+LDLIBS	= LIB:scppc.a LIB:end.o
+RM	= delete quiet
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example minigzip
+
+check: test
+test: all
+	example
+	echo hello world | minigzip | minigzip -d
+
+$(LIBNAME): $(OBJS)
+	$(AR) $@ $(OBJS)
+	-$(RANLIB) $@
+
+example: example.o $(LIBNAME)
+	$(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS)
+
+minigzip: minigzip.o $(LIBNAME)
+	$(LD) $(LDFLAGS) $@ LIB:c_ppc.o $@.o $(LIBNAME) $(LDLIBS)
+
+mostlyclean: clean
+clean:
+	$(RM) *.o example minigzip $(LIBNAME) foo.gz
+
+zip:
+	zip -ul9 zlib README ChangeLog Makefile Make????.??? Makefile.?? \
+	  descrip.mms *.[ch]
+
+tgz:
+	cd ..; tar cfz zlib/zlib.tgz zlib/README zlib/ChangeLog zlib/Makefile \
+	  zlib/Make????.??? zlib/Makefile.?? zlib/descrip.mms zlib/*.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: crc32.h zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+example.o: zlib.h zconf.h
+gzclose.o: zlib.h zconf.h gzguts.h
+gzlib.o: zlib.h zconf.h gzguts.h
+gzread.o: zlib.h zconf.h gzguts.h
+gzwrite.o: zlib.h zconf.h gzguts.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+minigzip.o: zlib.h zconf.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/amiga/Makefile.sas b/src/boost/libs/beast/test/extern/zlib-1.2.11/amiga/Makefile.sas
new file mode 100644
index 000000000..749e29152
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/amiga/Makefile.sas
@@ -0,0 +1,68 @@
+# SMakefile for zlib
+# Modified from the standard UNIX Makefile Copyright Jean-loup Gailly
+# Osma Ahvenlampi <Osma.Ahvenlampi@hut.fi>
+# Amiga, SAS/C 6.56 & Smake
+
+CC=sc
+CFLAGS=OPT
+#CFLAGS=OPT CPU=68030
+#CFLAGS=DEBUG=LINE
+LDFLAGS=LIB z.lib
+
+SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \
+       NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX \
+       DEF=POSTINC
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: SCOPTIONS example minigzip
+
+check: test
+test: all
+	example
+	echo hello world | minigzip | minigzip -d
+
+install: z.lib
+	copy clone zlib.h zconf.h INCLUDE:
+	copy clone z.lib LIB:
+
+z.lib: $(OBJS)
+	oml z.lib r $(OBJS)
+
+example: example.o z.lib
+	$(CC) $(CFLAGS) LINK TO $@ example.o $(LDFLAGS)
+
+minigzip: minigzip.o z.lib
+	$(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS)
+
+mostlyclean: clean
+clean:
+	-delete force quiet example minigzip *.o z.lib foo.gz *.lnk SCOPTIONS
+
+SCOPTIONS: Makefile.sas
+	copy to $@ <from <
+$(SCOPTIONS)
+<
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: crc32.h zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+example.o: zlib.h zconf.h
+gzclose.o: zlib.h zconf.h gzguts.h
+gzlib.o: zlib.h zconf.h gzguts.h
+gzread.o: zlib.h zconf.h gzguts.h
+gzwrite.o: zlib.h zconf.h gzguts.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+infback.o: zutil.h zlib.h zconf.h inftrees.h inflate.h inffast.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+minigzip.o: zlib.h zconf.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/compress.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/compress.c
new file mode 100644
index 000000000..e2db404ab
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/compress.c
@@ -0,0 +1,86 @@
+/* compress.c -- compress a memory buffer
+ * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+/* ===========================================================================
+     Compresses the source buffer into the destination buffer. The level
+   parameter has the same meaning as in deflateInit.  sourceLen is the byte
+   length of the source buffer. Upon entry, destLen is the total size of the
+   destination buffer, which must be at least 0.1% larger than sourceLen plus
+   12 bytes. Upon exit, destLen is the actual size of the compressed buffer.
+
+     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
+   Z_STREAM_ERROR if the level parameter is invalid.
+*/
+int ZEXPORT compress2 (dest, destLen, source, sourceLen, level)
+    Bytef *dest;
+    uLongf *destLen;
+    const Bytef *source;
+    uLong sourceLen;
+    int level;
+{
+    z_stream stream;
+    int err;
+    const uInt max = (uInt)-1;
+    uLong left;
+
+    left = *destLen;
+    *destLen = 0;
+
+    stream.zalloc = (alloc_func)0;
+    stream.zfree = (free_func)0;
+    stream.opaque = (voidpf)0;
+
+    err = deflateInit(&stream, level);
+    if (err != Z_OK) return err;
+
+    stream.next_out = dest;
+    stream.avail_out = 0;
+    stream.next_in = (z_const Bytef *)source;
+    stream.avail_in = 0;
+
+    do {
+        if (stream.avail_out == 0) {
+            stream.avail_out = left > (uLong)max ? max : (uInt)left;
+            left -= stream.avail_out;
+        }
+        if (stream.avail_in == 0) {
+            stream.avail_in = sourceLen > (uLong)max ? max : (uInt)sourceLen;
+            sourceLen -= stream.avail_in;
+        }
+        err = deflate(&stream, sourceLen ? Z_NO_FLUSH : Z_FINISH);
+    } while (err == Z_OK);
+
+    *destLen = stream.total_out;
+    deflateEnd(&stream);
+    return err == Z_STREAM_END ? Z_OK : err;
+}
+
+/* ===========================================================================
+ */
+int ZEXPORT compress (dest, destLen, source, sourceLen)
+    Bytef *dest;
+    uLongf *destLen;
+    const Bytef *source;
+    uLong sourceLen;
+{
+    return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION);
+}
+
+/* ===========================================================================
+     If the default memLevel or windowBits for deflateInit() is changed, then
+   this function needs to be updated.
+ */
+uLong ZEXPORT compressBound (sourceLen)
+    uLong sourceLen;
+{
+    return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
+           (sourceLen >> 25) + 13;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/configure b/src/boost/libs/beast/test/extern/zlib-1.2.11/configure
new file mode 100644
index 000000000..e974d1fd7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/configure
@@ -0,0 +1,921 @@
+#!/bin/sh
+# configure script for zlib.
+#
+# Normally configure builds both a static and a shared library.
+# If you want to build just a static library, use: ./configure --static
+#
+# To impose specific compiler or flags or install directory, use for example:
+#    prefix=$HOME CC=cc CFLAGS="-O4" ./configure
+# or for csh/tcsh users:
+#    (setenv prefix $HOME; setenv CC cc; setenv CFLAGS "-O4"; ./configure)
+
+# Incorrect settings of CC or CFLAGS may prevent creating a shared library.
+# If you have problems, try without defining CC and CFLAGS before reporting
+# an error.
+
+# start off configure.log
+echo -------------------- >> configure.log
+echo $0 $* >> configure.log
+date >> configure.log
+
+# get source directory
+SRCDIR=`dirname $0`
+if test $SRCDIR = "."; then
+    ZINC=""
+    ZINCOUT="-I."
+    SRCDIR=""
+else
+    ZINC='-include zconf.h'
+    ZINCOUT='-I. -I$(SRCDIR)'
+    SRCDIR="$SRCDIR/"
+fi
+
+# set command prefix for cross-compilation
+if [ -n "${CHOST}" ]; then
+    uname="`echo "${CHOST}" | sed -e 's/^[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)$/\1/' -e 's/^[^-]*-[^-]*-\([^-]*\)-.*$/\1/'`"
+    CROSS_PREFIX="${CHOST}-"
+fi
+
+# destination name for static library
+STATICLIB=libz.a
+
+# extract zlib version numbers from zlib.h
+VER=`sed -n -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < ${SRCDIR}zlib.h`
+VER3=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\\.[0-9]*\).*/\1/p' < ${SRCDIR}zlib.h`
+VER2=`sed -n -e '/VERSION "/s/.*"\([0-9]*\\.[0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h`
+VER1=`sed -n -e '/VERSION "/s/.*"\([0-9]*\)\\..*/\1/p' < ${SRCDIR}zlib.h`
+
+# establish commands for library building
+if "${CROSS_PREFIX}ar" --version >/dev/null 2>/dev/null || test $? -lt 126; then
+    AR=${AR-"${CROSS_PREFIX}ar"}
+    test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
+else
+    AR=${AR-"ar"}
+    test -n "${CROSS_PREFIX}" && echo Using ${AR} | tee -a configure.log
+fi
+ARFLAGS=${ARFLAGS-"rc"}
+if "${CROSS_PREFIX}ranlib" --version >/dev/null 2>/dev/null || test $? -lt 126; then
+    RANLIB=${RANLIB-"${CROSS_PREFIX}ranlib"}
+    test -n "${CROSS_PREFIX}" && echo Using ${RANLIB} | tee -a configure.log
+else
+    RANLIB=${RANLIB-"ranlib"}
+fi
+if "${CROSS_PREFIX}nm" --version >/dev/null 2>/dev/null || test $? -lt 126; then
+    NM=${NM-"${CROSS_PREFIX}nm"}
+    test -n "${CROSS_PREFIX}" && echo Using ${NM} | tee -a configure.log
+else
+    NM=${NM-"nm"}
+fi
+
+# set defaults before processing command line options
+LDCONFIG=${LDCONFIG-"ldconfig"}
+LDSHAREDLIBC="${LDSHAREDLIBC--lc}"
+ARCHS=
+prefix=${prefix-/usr/local}
+exec_prefix=${exec_prefix-'${prefix}'}
+libdir=${libdir-'${exec_prefix}/lib'}
+sharedlibdir=${sharedlibdir-'${libdir}'}
+includedir=${includedir-'${prefix}/include'}
+mandir=${mandir-'${prefix}/share/man'}
+shared_ext='.so'
+shared=1
+solo=0
+cover=0
+zprefix=0
+zconst=0
+build64=0
+gcc=0
+warn=0
+debug=0
+old_cc="$CC"
+old_cflags="$CFLAGS"
+OBJC='$(OBJZ) $(OBJG)'
+PIC_OBJC='$(PIC_OBJZ) $(PIC_OBJG)'
+
+# leave this script, optionally in a bad way
+leave()
+{
+  if test "$*" != "0"; then
+    echo "** $0 aborting." | tee -a configure.log
+  fi
+  rm -f $test.[co] $test $test$shared_ext $test.gcno ./--version
+  echo -------------------- >> configure.log
+  echo >> configure.log
+  echo >> configure.log
+  exit $1
+}
+
+# process command line options
+while test $# -ge 1
+do
+case "$1" in
+    -h* | --help)
+      echo 'usage:' | tee -a configure.log
+      echo '  configure [--const] [--zprefix] [--prefix=PREFIX]  [--eprefix=EXPREFIX]' | tee -a configure.log
+      echo '    [--static] [--64] [--libdir=LIBDIR] [--sharedlibdir=LIBDIR]' | tee -a configure.log
+      echo '    [--includedir=INCLUDEDIR] [--archs="-arch i386 -arch x86_64"]' | tee -a configure.log
+        exit 0 ;;
+    -p*=* | --prefix=*) prefix=`echo $1 | sed 's/.*=//'`; shift ;;
+    -e*=* | --eprefix=*) exec_prefix=`echo $1 | sed 's/.*=//'`; shift ;;
+    -l*=* | --libdir=*) libdir=`echo $1 | sed 's/.*=//'`; shift ;;
+    --sharedlibdir=*) sharedlibdir=`echo $1 | sed 's/.*=//'`; shift ;;
+    -i*=* | --includedir=*) includedir=`echo $1 | sed 's/.*=//'`;shift ;;
+    -u*=* | --uname=*) uname=`echo $1 | sed 's/.*=//'`;shift ;;
+    -p* | --prefix) prefix="$2"; shift; shift ;;
+    -e* | --eprefix) exec_prefix="$2"; shift; shift ;;
+    -l* | --libdir) libdir="$2"; shift; shift ;;
+    -i* | --includedir) includedir="$2"; shift; shift ;;
+    -s* | --shared | --enable-shared) shared=1; shift ;;
+    -t | --static) shared=0; shift ;;
+    --solo) solo=1; shift ;;
+    --cover) cover=1; shift ;;
+    -z* | --zprefix) zprefix=1; shift ;;
+    -6* | --64) build64=1; shift ;;
+    -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
+    --sysconfdir=*) echo "ignored option: --sysconfdir" | tee -a configure.log; shift ;;
+    --localstatedir=*) echo "ignored option: --localstatedir" | tee -a configure.log; shift ;;
+    -c* | --const) zconst=1; shift ;;
+    -w* | --warn) warn=1; shift ;;
+    -d* | --debug) debug=1; shift ;;
+    *)
+      echo "unknown option: $1" | tee -a configure.log
+      echo "$0 --help for help" | tee -a configure.log
+      leave 1;;
+    esac
+done
+
+# temporary file name
+test=ztest$$
+
+# put arguments in log, also put test file in log if used in arguments
+show()
+{
+  case "$*" in
+    *$test.c*)
+      echo === $test.c === >> configure.log
+      cat $test.c >> configure.log
+      echo === >> configure.log;;
+  esac
+  echo $* >> configure.log
+}
+
+# check for gcc vs. cc and set compile and link flags based on the system identified by uname
+cat > $test.c <<EOF
+extern int getchar();
+int hello() {return getchar();}
+EOF
+
+test -z "$CC" && echo Checking for ${CROSS_PREFIX}gcc... | tee -a configure.log
+cc=${CC-${CROSS_PREFIX}gcc}
+cflags=${CFLAGS-"-O3"}
+# to force the asm version use: CFLAGS="-O3 -DASMV" ./configure
+case "$cc" in
+  *gcc*) gcc=1 ;;
+  *clang*) gcc=1 ;;
+esac
+case `$cc -v 2>&1` in
+  *gcc*) gcc=1 ;;
+  *clang*) gcc=1 ;;
+esac
+
+show $cc -c $test.c
+if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
+  echo ... using gcc >> configure.log
+  CC="$cc"
+  CFLAGS="${CFLAGS--O3}"
+  SFLAGS="${CFLAGS--O3} -fPIC"
+  if test "$ARCHS"; then
+    CFLAGS="${CFLAGS} ${ARCHS}"
+    LDFLAGS="${LDFLAGS} ${ARCHS}"
+  fi
+  if test $build64 -eq 1; then
+    CFLAGS="${CFLAGS} -m64"
+    SFLAGS="${SFLAGS} -m64"
+  fi
+  if test "$warn" -eq 1; then
+    if test "$zconst" -eq 1; then
+      CFLAGS="${CFLAGS} -Wall -Wextra -Wcast-qual -pedantic -DZLIB_CONST"
+    else
+      CFLAGS="${CFLAGS} -Wall -Wextra -pedantic"
+    fi
+  fi
+  if test $debug -eq 1; then
+    CFLAGS="${CFLAGS} -DZLIB_DEBUG"
+    SFLAGS="${SFLAGS} -DZLIB_DEBUG"
+  fi
+  if test -z "$uname"; then
+    uname=`(uname -s || echo unknown) 2>/dev/null`
+  fi
+  case "$uname" in
+  Linux* | linux* | GNU | GNU/* | solaris*)
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"} ;;
+  *BSD | *bsd* | DragonFly)
+        LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1,--version-script,${SRCDIR}zlib.map"}
+        LDCONFIG="ldconfig -m" ;;
+  CYGWIN* | Cygwin* | cygwin* | OS/2*)
+        EXE='.exe' ;;
+  MINGW* | mingw*)
+# temporary bypass
+        rm -f $test.[co] $test $test$shared_ext
+        echo "Please use win32/Makefile.gcc instead." | tee -a configure.log
+        leave 1
+        LDSHARED=${LDSHARED-"$cc -shared"}
+        LDSHAREDLIBC=""
+        EXE='.exe' ;;
+  QNX*)  # This is for QNX6. I suppose that the QNX rule below is for QNX2,QNX4
+         # (alain.bonnefoy@icbt.com)
+                 LDSHARED=${LDSHARED-"$cc -shared -Wl,-hlibz.so.1"} ;;
+  HP-UX*)
+         LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
+         case `(uname -m || echo unknown) 2>/dev/null` in
+         ia64)
+                 shared_ext='.so'
+                 SHAREDLIB='libz.so' ;;
+         *)
+                 shared_ext='.sl'
+                 SHAREDLIB='libz.sl' ;;
+         esac ;;
+  Darwin* | darwin*)
+             shared_ext='.dylib'
+             SHAREDLIB=libz$shared_ext
+             SHAREDLIBV=libz.$VER$shared_ext
+             SHAREDLIBM=libz.$VER1$shared_ext
+             LDSHARED=${LDSHARED-"$cc -dynamiclib -install_name $libdir/$SHAREDLIBM -compatibility_version $VER1 -current_version $VER3"}
+             if libtool -V 2>&1 | grep Apple > /dev/null; then
+                 AR="libtool"
+             else
+                 AR="/usr/bin/libtool"
+             fi
+             ARFLAGS="-o" ;;
+  *)             LDSHARED=${LDSHARED-"$cc -shared"} ;;
+  esac
+else
+  # find system name and corresponding cc options
+  CC=${CC-cc}
+  gcc=0
+  echo ... using $CC >> configure.log
+  if test -z "$uname"; then
+    uname=`(uname -sr || echo unknown) 2>/dev/null`
+  fi
+  case "$uname" in
+  HP-UX*)    SFLAGS=${CFLAGS-"-O +z"}
+             CFLAGS=${CFLAGS-"-O"}
+#            LDSHARED=${LDSHARED-"ld -b +vnocompatwarnings"}
+             LDSHARED=${LDSHARED-"ld -b"}
+         case `(uname -m || echo unknown) 2>/dev/null` in
+         ia64)
+             shared_ext='.so'
+             SHAREDLIB='libz.so' ;;
+         *)
+             shared_ext='.sl'
+             SHAREDLIB='libz.sl' ;;
+         esac ;;
+  IRIX*)     SFLAGS=${CFLAGS-"-ansi -O2 -rpath ."}
+             CFLAGS=${CFLAGS-"-ansi -O2"}
+             LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
+  OSF1\ V4*) SFLAGS=${CFLAGS-"-O -std1"}
+             CFLAGS=${CFLAGS-"-O -std1"}
+             LDFLAGS="${LDFLAGS} -Wl,-rpath,."
+             LDSHARED=${LDSHARED-"cc -shared  -Wl,-soname,libz.so -Wl,-msym -Wl,-rpath,$(libdir) -Wl,-set_version,${VER}:1.0"} ;;
+  OSF1*)     SFLAGS=${CFLAGS-"-O -std1"}
+             CFLAGS=${CFLAGS-"-O -std1"}
+             LDSHARED=${LDSHARED-"cc -shared -Wl,-soname,libz.so.1"} ;;
+  QNX*)      SFLAGS=${CFLAGS-"-4 -O"}
+             CFLAGS=${CFLAGS-"-4 -O"}
+             LDSHARED=${LDSHARED-"cc"}
+             RANLIB=${RANLIB-"true"}
+             AR="cc"
+             ARFLAGS="-A" ;;
+  SCO_SV\ 3.2*) SFLAGS=${CFLAGS-"-O3 -dy -KPIC "}
+             CFLAGS=${CFLAGS-"-O3"}
+             LDSHARED=${LDSHARED-"cc -dy -KPIC -G"} ;;
+  SunOS\ 5* | solaris*)
+         LDSHARED=${LDSHARED-"cc -G -h libz$shared_ext.$VER1"}
+         SFLAGS=${CFLAGS-"-fast -KPIC"}
+         CFLAGS=${CFLAGS-"-fast"}
+         if test $build64 -eq 1; then
+             # old versions of SunPRO/Workshop/Studio don't support -m64,
+             # but newer ones do.  Check for it.
+             flag64=`$CC -flags | egrep -- '^-m64'`
+             if test x"$flag64" != x"" ; then
+                 CFLAGS="${CFLAGS} -m64"
+                 SFLAGS="${SFLAGS} -m64"
+             else
+                 case `(uname -m || echo unknown) 2>/dev/null` in
+                   i86*)
+                     SFLAGS="$SFLAGS -xarch=amd64"
+                     CFLAGS="$CFLAGS -xarch=amd64" ;;
+                   *)
+                     SFLAGS="$SFLAGS -xarch=v9"
+                     CFLAGS="$CFLAGS -xarch=v9" ;;
+                 esac
+             fi
+         fi
+         if test -n "$ZINC"; then
+             ZINC='-I- -I. -I$(SRCDIR)'
+         fi
+         ;;
+  SunOS\ 4*) SFLAGS=${CFLAGS-"-O2 -PIC"}
+             CFLAGS=${CFLAGS-"-O2"}
+             LDSHARED=${LDSHARED-"ld"} ;;
+  SunStudio\ 9*) SFLAGS=${CFLAGS-"-fast -xcode=pic32 -xtarget=ultra3 -xarch=v9b"}
+             CFLAGS=${CFLAGS-"-fast -xtarget=ultra3 -xarch=v9b"}
+             LDSHARED=${LDSHARED-"cc -xarch=v9b"} ;;
+  UNIX_System_V\ 4.2.0)
+             SFLAGS=${CFLAGS-"-KPIC -O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -G"} ;;
+  UNIX_SV\ 4.2MP)
+             SFLAGS=${CFLAGS-"-Kconform_pic -O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -G"} ;;
+  OpenUNIX\ 5)
+             SFLAGS=${CFLAGS-"-KPIC -O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -G"} ;;
+  AIX*)  # Courtesy of dbakker@arrayasolutions.com
+             SFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
+             CFLAGS=${CFLAGS-"-O -qmaxmem=8192"}
+             LDSHARED=${LDSHARED-"xlc -G"} ;;
+  # send working options for other systems to zlib@gzip.org
+  *)         SFLAGS=${CFLAGS-"-O"}
+             CFLAGS=${CFLAGS-"-O"}
+             LDSHARED=${LDSHARED-"cc -shared"} ;;
+  esac
+fi
+
+# destination names for shared library if not defined above
+SHAREDLIB=${SHAREDLIB-"libz$shared_ext"}
+SHAREDLIBV=${SHAREDLIBV-"libz$shared_ext.$VER"}
+SHAREDLIBM=${SHAREDLIBM-"libz$shared_ext.$VER1"}
+
+echo >> configure.log
+
+# define functions for testing compiler and library characteristics and logging the results
+
+cat > $test.c <<EOF
+#error error
+EOF
+if ($CC -c $CFLAGS $test.c) 2>/dev/null; then
+  try()
+  {
+    show $*
+    test "`( $* ) 2>&1 | tee -a configure.log`" = ""
+  }
+  echo - using any output from compiler to indicate an error >> configure.log
+else
+  try()
+  {
+    show $*
+    ( $* ) >> configure.log 2>&1
+    ret=$?
+    if test $ret -ne 0; then
+      echo "(exit code "$ret")" >> configure.log
+    fi
+    return $ret
+  }
+fi
+
+tryboth()
+{
+  show $*
+  got=`( $* ) 2>&1`
+  ret=$?
+  printf %s "$got" >> configure.log
+  if test $ret -ne 0; then
+    return $ret
+  fi
+  test "$got" = ""
+}
+
+cat > $test.c << EOF
+int foo() { return 0; }
+EOF
+echo "Checking for obsessive-compulsive compiler options..." >> configure.log
+if try $CC -c $CFLAGS $test.c; then
+  :
+else
+  echo "Compiler error reporting is too harsh for $0 (perhaps remove -Werror)." | tee -a configure.log
+  leave 1
+fi
+
+echo >> configure.log
+
+# see if shared library build supported
+cat > $test.c <<EOF
+extern int getchar();
+int hello() {return getchar();}
+EOF
+if test $shared -eq 1; then
+  echo Checking for shared library support... | tee -a configure.log
+  # we must test in two steps (cc then ld), required at least on SunOS 4.x
+  if try $CC -w -c $SFLAGS $test.c &&
+     try $LDSHARED $SFLAGS -o $test$shared_ext $test.o; then
+    echo Building shared library $SHAREDLIBV with $CC. | tee -a configure.log
+  elif test -z "$old_cc" -a -z "$old_cflags"; then
+    echo No shared library support. | tee -a configure.log
+    shared=0;
+  else
+    echo 'No shared library support; try without defining CC and CFLAGS' | tee -a configure.log
+    shared=0;
+  fi
+fi
+if test $shared -eq 0; then
+  LDSHARED="$CC"
+  ALL="static"
+  TEST="all teststatic"
+  SHAREDLIB=""
+  SHAREDLIBV=""
+  SHAREDLIBM=""
+  echo Building static library $STATICLIB version $VER with $CC. | tee -a configure.log
+else
+  ALL="static shared"
+  TEST="all teststatic testshared"
+fi
+
+# check for underscores in external names for use by assembler code
+CPP=${CPP-"$CC -E"}
+case $CFLAGS in
+  *ASMV*)
+    echo >> configure.log
+    show "$NM $test.o | grep _hello"
+    if test "`$NM $test.o | grep _hello | tee -a configure.log`" = ""; then
+      CPP="$CPP -DNO_UNDERLINE"
+      echo Checking for underline in external names... No. | tee -a configure.log
+    else
+      echo Checking for underline in external names... Yes. | tee -a configure.log
+    fi ;;
+esac
+
+echo >> configure.log
+
+# check for size_t
+cat > $test.c <<EOF
+#include <stdio.h>
+#include <stdlib.h>
+size_t dummy = 0;
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  echo "Checking for size_t... Yes." | tee -a configure.log
+  need_sizet=0
+else
+  echo "Checking for size_t... No." | tee -a configure.log
+  need_sizet=1
+fi
+
+echo >> configure.log
+
+# find the size_t integer type, if needed
+if test $need_sizet -eq 1; then
+  cat > $test.c <<EOF
+long long dummy = 0;
+EOF
+  if try $CC -c $CFLAGS $test.c; then
+    echo "Checking for long long... Yes." | tee -a configure.log
+    cat > $test.c <<EOF
+#include <stdio.h>
+int main(void) {
+    if (sizeof(void *) <= sizeof(int)) puts("int");
+    else if (sizeof(void *) <= sizeof(long)) puts("long");
+    else puts("z_longlong");
+    return 0;
+}
+EOF
+  else
+    echo "Checking for long long... No." | tee -a configure.log
+    cat > $test.c <<EOF
+#include <stdio.h>
+int main(void) {
+    if (sizeof(void *) <= sizeof(int)) puts("int");
+    else puts("long");
+    return 0;
+}
+EOF
+  fi
+  if try $CC $CFLAGS -o $test $test.c; then
+    sizet=`./$test`
+    echo "Checking for a pointer-size integer type..." $sizet"." | tee -a configure.log
+  else
+    echo "Failed to find a pointer-size integer type." | tee -a configure.log
+    leave 1
+  fi
+fi
+
+if test $need_sizet -eq 1; then
+  CFLAGS="${CFLAGS} -DNO_SIZE_T=${sizet}"
+  SFLAGS="${SFLAGS} -DNO_SIZE_T=${sizet}"
+fi
+
+echo >> configure.log
+
+# check for large file support, and if none, check for fseeko()
+cat > $test.c <<EOF
+#include <sys/types.h>
+off64_t dummy = 0;
+EOF
+if try $CC -c $CFLAGS -D_LARGEFILE64_SOURCE=1 $test.c; then
+  CFLAGS="${CFLAGS} -D_LARGEFILE64_SOURCE=1"
+  SFLAGS="${SFLAGS} -D_LARGEFILE64_SOURCE=1"
+  ALL="${ALL} all64"
+  TEST="${TEST} test64"
+  echo "Checking for off64_t... Yes." | tee -a configure.log
+  echo "Checking for fseeko... Yes." | tee -a configure.log
+else
+  echo "Checking for off64_t... No." | tee -a configure.log
+  echo >> configure.log
+  cat > $test.c <<EOF
+#include <stdio.h>
+int main(void) {
+  fseeko(NULL, 0, 0);
+  return 0;
+}
+EOF
+  if try $CC $CFLAGS -o $test $test.c; then
+    echo "Checking for fseeko... Yes." | tee -a configure.log
+  else
+    CFLAGS="${CFLAGS} -DNO_FSEEKO"
+    SFLAGS="${SFLAGS} -DNO_FSEEKO"
+    echo "Checking for fseeko... No." | tee -a configure.log
+  fi
+fi
+
+echo >> configure.log
+
+# check for strerror() for use by gz* functions
+cat > $test.c <<EOF
+#include <string.h>
+#include <errno.h>
+int main() { return strlen(strerror(errno)); }
+EOF
+if try $CC $CFLAGS -o $test $test.c; then
+  echo "Checking for strerror... Yes." | tee -a configure.log
+else
+  CFLAGS="${CFLAGS} -DNO_STRERROR"
+  SFLAGS="${SFLAGS} -DNO_STRERROR"
+  echo "Checking for strerror... No." | tee -a configure.log
+fi
+
+# copy clean zconf.h for subsequent edits
+cp -p ${SRCDIR}zconf.h.in zconf.h
+
+echo >> configure.log
+
+# check for unistd.h and save result in zconf.h
+cat > $test.c <<EOF
+#include <unistd.h>
+int main() { return 0; }
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  sed < zconf.h "/^#ifdef HAVE_UNISTD_H.* may be/s/def HAVE_UNISTD_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
+  mv zconf.temp.h zconf.h
+  echo "Checking for unistd.h... Yes." | tee -a configure.log
+else
+  echo "Checking for unistd.h... No." | tee -a configure.log
+fi
+
+echo >> configure.log
+
+# check for stdarg.h and save result in zconf.h
+cat > $test.c <<EOF
+#include <stdarg.h>
+int main() { return 0; }
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  sed < zconf.h "/^#ifdef HAVE_STDARG_H.* may be/s/def HAVE_STDARG_H\(.*\) may be/ 1\1 was/" > zconf.temp.h
+  mv zconf.temp.h zconf.h
+  echo "Checking for stdarg.h... Yes." | tee -a configure.log
+else
+  echo "Checking for stdarg.h... No." | tee -a configure.log
+fi
+
+# if the z_ prefix was requested, save that in zconf.h
+if test $zprefix -eq 1; then
+  sed < zconf.h "/#ifdef Z_PREFIX.* may be/s/def Z_PREFIX\(.*\) may be/ 1\1 was/" > zconf.temp.h
+  mv zconf.temp.h zconf.h
+  echo >> configure.log
+  echo "Using z_ prefix on all symbols." | tee -a configure.log
+fi
+
+# if --solo compilation was requested, save that in zconf.h and remove gz stuff from object lists
+if test $solo -eq 1; then
+  sed '/#define ZCONF_H/a\
+#define Z_SOLO
+
+' < zconf.h > zconf.temp.h
+  mv zconf.temp.h zconf.h
+OBJC='$(OBJZ)'
+PIC_OBJC='$(PIC_OBJZ)'
+fi
+
+# if code coverage testing was requested, use older gcc if defined, e.g. "gcc-4.2" on Mac OS X
+if test $cover -eq 1; then
+  CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
+  if test -n "$GCC_CLASSIC"; then
+    CC=$GCC_CLASSIC
+  fi
+fi
+
+echo >> configure.log
+
+# conduct a series of tests to resolve eight possible cases of using "vs" or "s" printf functions
+# (using stdarg or not), with or without "n" (proving size of buffer), and with or without a
+# return value.  The most secure result is vsnprintf() with a return value.  snprintf() with a
+# return value is secure as well, but then gzprintf() will be limited to 20 arguments.
+cat > $test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+#include "zconf.h"
+int main()
+{
+#ifndef STDC
+  choke me
+#endif
+  return 0;
+}
+EOF
+if try $CC -c $CFLAGS $test.c; then
+  echo "Checking whether to use vs[n]printf() or s[n]printf()... using vs[n]printf()." | tee -a configure.log
+
+  echo >> configure.log
+  cat > $test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+  char buf[20];
+  va_list ap;
+  va_start(ap, fmt);
+  vsnprintf(buf, sizeof(buf), fmt, ap);
+  va_end(ap);
+  return 0;
+}
+int main()
+{
+  return (mytest("Hello%d\n", 1));
+}
+EOF
+  if try $CC $CFLAGS -o $test $test.c; then
+    echo "Checking for vsnprintf() in stdio.h... Yes." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+  int n;
+  char buf[20];
+  va_list ap;
+  va_start(ap, fmt);
+  n = vsnprintf(buf, sizeof(buf), fmt, ap);
+  va_end(ap);
+  return n;
+}
+int main()
+{
+  return (mytest("Hello%d\n", 1));
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of vsnprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
+      SFLAGS="$SFLAGS -DHAS_vsnprintf_void"
+      echo "Checking for return value of vsnprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently vsnprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  else
+    CFLAGS="$CFLAGS -DNO_vsnprintf"
+    SFLAGS="$SFLAGS -DNO_vsnprintf"
+    echo "Checking for vsnprintf() in stdio.h... No." | tee -a configure.log
+    echo "  WARNING: vsnprintf() not found, falling back to vsprintf(). zlib" | tee -a configure.log
+    echo "  can build but will be open to possible buffer-overflow security" | tee -a configure.log
+    echo "  vulnerabilities." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+#include <stdarg.h>
+int mytest(const char *fmt, ...)
+{
+  int n;
+  char buf[20];
+  va_list ap;
+  va_start(ap, fmt);
+  n = vsprintf(buf, fmt, ap);
+  va_end(ap);
+  return n;
+}
+int main()
+{
+  return (mytest("Hello%d\n", 1));
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of vsprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_vsprintf_void"
+      SFLAGS="$SFLAGS -DHAS_vsprintf_void"
+      echo "Checking for return value of vsprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently vsprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  fi
+else
+  echo "Checking whether to use vs[n]printf() or s[n]printf()... using s[n]printf()." | tee -a configure.log
+
+  echo >> configure.log
+  cat >$test.c <<EOF
+#include <stdio.h>
+int mytest()
+{
+  char buf[20];
+  snprintf(buf, sizeof(buf), "%s", "foo");
+  return 0;
+}
+int main()
+{
+  return (mytest());
+}
+EOF
+
+  if try $CC $CFLAGS -o $test $test.c; then
+    echo "Checking for snprintf() in stdio.h... Yes." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+int mytest()
+{
+  char buf[20];
+  return snprintf(buf, sizeof(buf), "%s", "foo");
+}
+int main()
+{
+  return (mytest());
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of snprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_snprintf_void"
+      SFLAGS="$SFLAGS -DHAS_snprintf_void"
+      echo "Checking for return value of snprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently snprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  else
+    CFLAGS="$CFLAGS -DNO_snprintf"
+    SFLAGS="$SFLAGS -DNO_snprintf"
+    echo "Checking for snprintf() in stdio.h... No." | tee -a configure.log
+    echo "  WARNING: snprintf() not found, falling back to sprintf(). zlib" | tee -a configure.log
+    echo "  can build but will be open to possible buffer-overflow security" | tee -a configure.log
+    echo "  vulnerabilities." | tee -a configure.log
+
+    echo >> configure.log
+    cat >$test.c <<EOF
+#include <stdio.h>
+int mytest()
+{
+  char buf[20];
+  return sprintf(buf, "%s", "foo");
+}
+int main()
+{
+  return (mytest());
+}
+EOF
+
+    if try $CC -c $CFLAGS $test.c; then
+      echo "Checking for return value of sprintf()... Yes." | tee -a configure.log
+    else
+      CFLAGS="$CFLAGS -DHAS_sprintf_void"
+      SFLAGS="$SFLAGS -DHAS_sprintf_void"
+      echo "Checking for return value of sprintf()... No." | tee -a configure.log
+      echo "  WARNING: apparently sprintf() does not return a value. zlib" | tee -a configure.log
+      echo "  can build but will be open to possible string-format security" | tee -a configure.log
+      echo "  vulnerabilities." | tee -a configure.log
+    fi
+  fi
+fi
+
+# see if we can hide zlib internal symbols that are linked between separate source files
+if test "$gcc" -eq 1; then
+  echo >> configure.log
+  cat > $test.c <<EOF
+#define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+int ZLIB_INTERNAL foo;
+int main()
+{
+  return 0;
+}
+EOF
+  if tryboth $CC -c $CFLAGS $test.c; then
+    CFLAGS="$CFLAGS -DHAVE_HIDDEN"
+    SFLAGS="$SFLAGS -DHAVE_HIDDEN"
+    echo "Checking for attribute(visibility) support... Yes." | tee -a configure.log
+  else
+    echo "Checking for attribute(visibility) support... No." | tee -a configure.log
+  fi
+fi
+
+# show the results in the log
+echo >> configure.log
+echo ALL = $ALL >> configure.log
+echo AR = $AR >> configure.log
+echo ARFLAGS = $ARFLAGS >> configure.log
+echo CC = $CC >> configure.log
+echo CFLAGS = $CFLAGS >> configure.log
+echo CPP = $CPP >> configure.log
+echo EXE = $EXE >> configure.log
+echo LDCONFIG = $LDCONFIG >> configure.log
+echo LDFLAGS = $LDFLAGS >> configure.log
+echo LDSHARED = $LDSHARED >> configure.log
+echo LDSHAREDLIBC = $LDSHAREDLIBC >> configure.log
+echo OBJC = $OBJC >> configure.log
+echo PIC_OBJC = $PIC_OBJC >> configure.log
+echo RANLIB = $RANLIB >> configure.log
+echo SFLAGS = $SFLAGS >> configure.log
+echo SHAREDLIB = $SHAREDLIB >> configure.log
+echo SHAREDLIBM = $SHAREDLIBM >> configure.log
+echo SHAREDLIBV = $SHAREDLIBV >> configure.log
+echo STATICLIB = $STATICLIB >> configure.log
+echo TEST = $TEST >> configure.log
+echo VER = $VER >> configure.log
+echo Z_U4 = $Z_U4 >> configure.log
+echo SRCDIR = $SRCDIR >> configure.log
+echo exec_prefix = $exec_prefix >> configure.log
+echo includedir = $includedir >> configure.log
+echo libdir = $libdir >> configure.log
+echo mandir = $mandir >> configure.log
+echo prefix = $prefix >> configure.log
+echo sharedlibdir = $sharedlibdir >> configure.log
+echo uname = $uname >> configure.log
+
+# udpate Makefile with the configure results
+sed < ${SRCDIR}Makefile.in "
+/^CC *=/s#=.*#=$CC#
+/^CFLAGS *=/s#=.*#=$CFLAGS#
+/^SFLAGS *=/s#=.*#=$SFLAGS#
+/^LDFLAGS *=/s#=.*#=$LDFLAGS#
+/^LDSHARED *=/s#=.*#=$LDSHARED#
+/^CPP *=/s#=.*#=$CPP#
+/^STATICLIB *=/s#=.*#=$STATICLIB#
+/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
+/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
+/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
+/^RANLIB *=/s#=.*#=$RANLIB#
+/^LDCONFIG *=/s#=.*#=$LDCONFIG#
+/^LDSHAREDLIBC *=/s#=.*#=$LDSHAREDLIBC#
+/^EXE *=/s#=.*#=$EXE#
+/^SRCDIR *=/s#=.*#=$SRCDIR#
+/^ZINC *=/s#=.*#=$ZINC#
+/^ZINCOUT *=/s#=.*#=$ZINCOUT#
+/^prefix *=/s#=.*#=$prefix#
+/^exec_prefix *=/s#=.*#=$exec_prefix#
+/^libdir *=/s#=.*#=$libdir#
+/^sharedlibdir *=/s#=.*#=$sharedlibdir#
+/^includedir *=/s#=.*#=$includedir#
+/^mandir *=/s#=.*#=$mandir#
+/^OBJC *=/s#=.*#= $OBJC#
+/^PIC_OBJC *=/s#=.*#= $PIC_OBJC#
+/^all: */s#:.*#: $ALL#
+/^test: */s#:.*#: $TEST#
+" > Makefile
+
+# create zlib.pc with the configure results
+sed < ${SRCDIR}zlib.pc.in "
+/^CC *=/s#=.*#=$CC#
+/^CFLAGS *=/s#=.*#=$CFLAGS#
+/^CPP *=/s#=.*#=$CPP#
+/^LDSHARED *=/s#=.*#=$LDSHARED#
+/^STATICLIB *=/s#=.*#=$STATICLIB#
+/^SHAREDLIB *=/s#=.*#=$SHAREDLIB#
+/^SHAREDLIBV *=/s#=.*#=$SHAREDLIBV#
+/^SHAREDLIBM *=/s#=.*#=$SHAREDLIBM#
+/^AR *=/s#=.*#=$AR#
+/^ARFLAGS *=/s#=.*#=$ARFLAGS#
+/^RANLIB *=/s#=.*#=$RANLIB#
+/^EXE *=/s#=.*#=$EXE#
+/^prefix *=/s#=.*#=$prefix#
+/^exec_prefix *=/s#=.*#=$exec_prefix#
+/^libdir *=/s#=.*#=$libdir#
+/^sharedlibdir *=/s#=.*#=$sharedlibdir#
+/^includedir *=/s#=.*#=$includedir#
+/^mandir *=/s#=.*#=$mandir#
+/^LDFLAGS *=/s#=.*#=$LDFLAGS#
+" | sed -e "
+s/\@VERSION\@/$VER/g;
+" > zlib.pc
+
+# done
+leave 0
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/README.contrib b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/README.contrib
new file mode 100644
index 000000000..a411d5c39
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/README.contrib
@@ -0,0 +1,78 @@
+All files under this contrib directory are UNSUPPORTED. There were
+provided by users of zlib and were not tested by the authors of zlib.
+Use at your own risk. Please contact the authors of the contributions
+for help about these, not the zlib authors. Thanks.
+
+
+ada/        by Dmitriy Anisimkov <anisimkov@yahoo.com>
+        Support for Ada
+        See http://zlib-ada.sourceforge.net/
+
+amd64/      by Mikhail Teterin <mi@ALDAN.algebra.com>
+        asm code for AMD64
+        See patch at http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/96393
+
+asm686/     by Brian Raiter <breadbox@muppetlabs.com>
+        asm code for Pentium and PPro/PII, using the AT&T (GNU as) syntax
+        See http://www.muppetlabs.com/~breadbox/software/assembly.html
+
+blast/      by Mark Adler <madler@alumni.caltech.edu>
+        Decompressor for output of PKWare Data Compression Library (DCL)
+
+delphi/     by Cosmin Truta <cosmint@cs.ubbcluj.ro>
+        Support for Delphi and C++ Builder
+
+dotzlib/    by Henrik Ravn <henrik@ravn.com>
+        Support for Microsoft .Net and Visual C++ .Net
+
+gcc_gvmat64/by Gilles Vollant <info@winimage.com>
+        GCC Version of x86 64-bit (AMD64 and Intel EM64t) code for x64
+        assembler to replace longest_match() and inflate_fast()
+
+infback9/   by Mark Adler <madler@alumni.caltech.edu>
+        Unsupported diffs to infback to decode the deflate64 format
+
+inflate86/  by Chris Anderson <christop@charm.net>
+        Tuned x86 gcc asm code to replace inflate_fast()
+
+iostream/   by Kevin Ruland <kevin@rodin.wustl.edu>
+        A C++ I/O streams interface to the zlib gz* functions
+
+iostream2/  by Tyge Løvset <Tyge.Lovset@cmr.no>
+        Another C++ I/O streams interface
+
+iostream3/  by Ludwig Schwardt <schwardt@sun.ac.za>
+            and Kevin Ruland <kevin@rodin.wustl.edu>
+        Yet another C++ I/O streams interface
+
+masmx64/    by Gilles Vollant <info@winimage.com>
+        x86 64-bit (AMD64 and Intel EM64t) code for x64 assembler to
+        replace longest_match() and inflate_fast(),  also masm x86
+        64-bits translation of Chris Anderson inflate_fast()
+
+masmx86/    by Gilles Vollant <info@winimage.com>
+        x86 asm code to replace longest_match() and inflate_fast(),
+        for Visual C++ and MASM (32 bits).
+        Based on Brian Raiter (asm686) and Chris Anderson (inflate86)
+
+minizip/    by Gilles Vollant <info@winimage.com>
+        Mini zip and unzip based on zlib
+        Includes Zip64 support by Mathias Svensson <mathias@result42.com>
+        See http://www.winimage.com/zLibDll/minizip.html
+
+pascal/     by Bob Dellaca <bobdl@xtra.co.nz> et al.
+        Support for Pascal
+
+puff/       by Mark Adler <madler@alumni.caltech.edu>
+        Small, low memory usage inflate.  Also serves to provide an
+        unambiguous description of the deflate format.
+
+testzlib/   by Gilles Vollant <info@winimage.com>
+        Example of the use of zlib
+
+untgz/      by Pedro A. Aranda Gutierrez <paag@tid.es>
+        A very simple tar.gz file extractor using zlib
+
+vstudio/    by Gilles Vollant <info@winimage.com>
+        Building a minizip-enhanced zlib with Microsoft Visual Studio
+        Includes vc11 from kreuzerkrieg and vc12 from davispuh
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/buffer_demo.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/buffer_demo.adb
new file mode 100644
index 000000000..46b863810
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/buffer_demo.adb
@@ -0,0 +1,106 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2004 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+--
+--  $Id: buffer_demo.adb,v 1.3 2004/09/06 06:55:35 vagul Exp $
+
+--  This demo program provided by Dr Steve Sangwine <sjs@essex.ac.uk>
+--
+--  Demonstration of a problem with Zlib-Ada (already fixed) when a buffer
+--  of exactly the correct size is used for decompressed data, and the last
+--  few bytes passed in to Zlib are checksum bytes.
+
+--  This program compresses a string of text, and then decompresses the
+--  compressed text into a buffer of the same size as the original text.
+
+with Ada.Streams; use Ada.Streams;
+with Ada.Text_IO;
+
+with ZLib; use ZLib;
+
+procedure Buffer_Demo is
+   EOL  : Character renames ASCII.LF;
+   Text : constant String
+     := "Four score and seven years ago our fathers brought forth," & EOL &
+        "upon this continent, a new nation, conceived in liberty," & EOL &
+        "and dedicated to the proposition that `all men are created equal'.";
+
+   Source : Stream_Element_Array (1 .. Text'Length);
+   for Source'Address use Text'Address;
+
+begin
+   Ada.Text_IO.Put (Text);
+   Ada.Text_IO.New_Line;
+   Ada.Text_IO.Put_Line
+     ("Uncompressed size : " & Positive'Image (Text'Length) & " bytes");
+
+   declare
+      Compressed_Data : Stream_Element_Array (1 .. Text'Length);
+      L               : Stream_Element_Offset;
+   begin
+      Compress : declare
+         Compressor : Filter_Type;
+         I : Stream_Element_Offset;
+      begin
+         Deflate_Init (Compressor);
+
+         --  Compress the whole of T at once.
+
+         Translate (Compressor, Source, I, Compressed_Data, L, Finish);
+         pragma Assert (I = Source'Last);
+
+         Close (Compressor);
+
+         Ada.Text_IO.Put_Line
+           ("Compressed size :   "
+            & Stream_Element_Offset'Image (L) & " bytes");
+      end Compress;
+
+      --  Now we decompress the data, passing short blocks of data to Zlib
+      --  (because this demonstrates the problem - the last block passed will
+      --  contain checksum information and there will be no output, only a
+      --  check inside Zlib that the checksum is correct).
+
+      Decompress : declare
+         Decompressor : Filter_Type;
+
+         Uncompressed_Data : Stream_Element_Array (1 .. Text'Length);
+
+         Block_Size : constant := 4;
+         --  This makes sure that the last block contains
+         --  only Adler checksum data.
+
+         P : Stream_Element_Offset := Compressed_Data'First - 1;
+         O : Stream_Element_Offset;
+      begin
+         Inflate_Init (Decompressor);
+
+         loop
+            Translate
+              (Decompressor,
+               Compressed_Data
+                 (P + 1 .. Stream_Element_Offset'Min (P + Block_Size, L)),
+               P,
+               Uncompressed_Data
+                 (Total_Out (Decompressor) + 1 .. Uncompressed_Data'Last),
+               O,
+               No_Flush);
+
+               Ada.Text_IO.Put_Line
+                 ("Total in : " & Count'Image (Total_In (Decompressor)) &
+                  ", out : " & Count'Image (Total_Out (Decompressor)));
+
+               exit when P = L;
+         end loop;
+
+         Ada.Text_IO.New_Line;
+         Ada.Text_IO.Put_Line
+           ("Decompressed text matches original text : "
+             & Boolean'Image (Uncompressed_Data = Source));
+      end Decompress;
+   end;
+end Buffer_Demo;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/mtest.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/mtest.adb
new file mode 100644
index 000000000..c4dfd080f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/mtest.adb
@@ -0,0 +1,156 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+--  Continuous test for ZLib multithreading. If the test would fail
+--  we should provide thread safe allocation routines for the Z_Stream.
+--
+--  $Id: mtest.adb,v 1.4 2004/07/23 07:49:54 vagul Exp $
+
+with ZLib;
+with Ada.Streams;
+with Ada.Numerics.Discrete_Random;
+with Ada.Text_IO;
+with Ada.Exceptions;
+with Ada.Task_Identification;
+
+procedure MTest is
+   use Ada.Streams;
+   use ZLib;
+
+   Stop : Boolean := False;
+
+   pragma Atomic (Stop);
+
+   subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
+
+   package Random_Elements is
+      new Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+   task type Test_Task;
+
+   task body Test_Task is
+      Buffer : Stream_Element_Array (1 .. 100_000);
+      Gen : Random_Elements.Generator;
+
+      Buffer_First  : Stream_Element_Offset;
+      Compare_First : Stream_Element_Offset;
+
+      Deflate : Filter_Type;
+      Inflate : Filter_Type;
+
+      procedure Further (Item : in Stream_Element_Array);
+
+      procedure Read_Buffer
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+
+      -------------
+      -- Further --
+      -------------
+
+      procedure Further (Item : in Stream_Element_Array) is
+
+         procedure Compare (Item : in Stream_Element_Array);
+
+         -------------
+         -- Compare --
+         -------------
+
+         procedure Compare (Item : in Stream_Element_Array) is
+            Next_First : Stream_Element_Offset := Compare_First + Item'Length;
+         begin
+            if Buffer (Compare_First .. Next_First - 1) /= Item then
+               raise Program_Error;
+            end if;
+
+            Compare_First := Next_First;
+         end Compare;
+
+         procedure Compare_Write is new ZLib.Write (Write => Compare);
+      begin
+         Compare_Write (Inflate, Item, No_Flush);
+      end Further;
+
+      -----------------
+      -- Read_Buffer --
+      -----------------
+
+      procedure Read_Buffer
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset)
+      is
+         Buff_Diff   : Stream_Element_Offset := Buffer'Last - Buffer_First;
+         Next_First : Stream_Element_Offset;
+      begin
+         if Item'Length <= Buff_Diff then
+            Last := Item'Last;
+
+            Next_First := Buffer_First + Item'Length;
+
+            Item := Buffer (Buffer_First .. Next_First - 1);
+
+            Buffer_First := Next_First;
+         else
+            Last := Item'First + Buff_Diff;
+            Item (Item'First .. Last) := Buffer (Buffer_First .. Buffer'Last);
+            Buffer_First := Buffer'Last + 1;
+         end if;
+      end Read_Buffer;
+
+      procedure Translate is new Generic_Translate
+                                   (Data_In  => Read_Buffer,
+                                    Data_Out => Further);
+
+   begin
+      Random_Elements.Reset (Gen);
+
+      Buffer := (others => 20);
+
+      Main : loop
+         for J in Buffer'Range loop
+            Buffer (J) := Random_Elements.Random (Gen);
+
+            Deflate_Init (Deflate);
+            Inflate_Init (Inflate);
+
+            Buffer_First  := Buffer'First;
+            Compare_First := Buffer'First;
+
+            Translate (Deflate);
+
+            if Compare_First /= Buffer'Last + 1 then
+               raise Program_Error;
+            end if;
+
+            Ada.Text_IO.Put_Line
+              (Ada.Task_Identification.Image
+                 (Ada.Task_Identification.Current_Task)
+               & Stream_Element_Offset'Image (J)
+               & ZLib.Count'Image (Total_Out (Deflate)));
+
+            Close (Deflate);
+            Close (Inflate);
+
+            exit Main when Stop;
+         end loop;
+      end loop Main;
+   exception
+      when E : others =>
+         Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (E));
+         Stop := True;
+   end Test_Task;
+
+   Test : array (1 .. 4) of Test_Task;
+
+   pragma Unreferenced (Test);
+
+   Dummy : Character;
+
+begin
+   Ada.Text_IO.Get_Immediate (Dummy);
+   Stop := True;
+end MTest;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/read.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/read.adb
new file mode 100644
index 000000000..1f2efbfeb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/read.adb
@@ -0,0 +1,156 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: read.adb,v 1.8 2004/05/31 10:53:40 vagul Exp $
+
+--  Test/demo program for the generic read interface.
+
+with Ada.Numerics.Discrete_Random;
+with Ada.Streams;
+with Ada.Text_IO;
+
+with ZLib;
+
+procedure Read is
+
+   use Ada.Streams;
+
+   ------------------------------------
+   --  Test configuration parameters --
+   ------------------------------------
+
+   File_Size   : Stream_Element_Offset := 100_000;
+
+   Continuous  : constant Boolean          := False;
+   --  If this constant is True, the test would be repeated again and again,
+   --  with increment File_Size for every iteration.
+
+   Header      : constant ZLib.Header_Type := ZLib.Default;
+   --  Do not use Header other than Default in ZLib versions 1.1.4 and older.
+
+   Init_Random : constant := 8;
+   --  We are using the same random sequence, in case of we catch bug,
+   --  so we would be able to reproduce it.
+
+   -- End --
+
+   Pack_Size : Stream_Element_Offset;
+   Offset    : Stream_Element_Offset;
+
+   Filter     : ZLib.Filter_Type;
+
+   subtype Visible_Symbols
+      is Stream_Element range 16#20# .. 16#7E#;
+
+   package Random_Elements is new
+      Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+   Gen : Random_Elements.Generator;
+   Period  : constant Stream_Element_Offset := 200;
+   --  Period constant variable for random generator not to be very random.
+   --  Bigger period, harder random.
+
+   Read_Buffer : Stream_Element_Array (1 .. 2048);
+   Read_First  : Stream_Element_Offset;
+   Read_Last   : Stream_Element_Offset;
+
+   procedure Reset;
+
+   procedure Read
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Read
+   --  reading data from the File_In.
+
+   procedure Read is new ZLib.Read
+                           (Read,
+                            Read_Buffer,
+                            Rest_First => Read_First,
+                            Rest_Last  => Read_Last);
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset) is
+   begin
+      Last := Stream_Element_Offset'Min
+               (Item'Last,
+                Item'First + File_Size - Offset);
+
+      for J in Item'First .. Last loop
+         if J < Item'First + Period then
+            Item (J) := Random_Elements.Random (Gen);
+         else
+            Item (J) := Item (J - Period);
+         end if;
+
+         Offset   := Offset + 1;
+      end loop;
+   end Read;
+
+   -----------
+   -- Reset --
+   -----------
+
+   procedure Reset is
+   begin
+      Random_Elements.Reset (Gen, Init_Random);
+      Pack_Size := 0;
+      Offset := 1;
+      Read_First := Read_Buffer'Last + 1;
+      Read_Last  := Read_Buffer'Last;
+   end Reset;
+
+begin
+   Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
+
+   loop
+      for Level in ZLib.Compression_Level'Range loop
+
+         Ada.Text_IO.Put ("Level ="
+            & ZLib.Compression_Level'Image (Level));
+
+         --  Deflate using generic instantiation.
+
+         ZLib.Deflate_Init
+               (Filter,
+                Level,
+                Header => Header);
+
+         Reset;
+
+         Ada.Text_IO.Put
+           (Stream_Element_Offset'Image (File_Size) & " ->");
+
+         loop
+            declare
+               Buffer : Stream_Element_Array (1 .. 1024);
+               Last   : Stream_Element_Offset;
+            begin
+               Read (Filter, Buffer, Last);
+
+               Pack_Size := Pack_Size + Last - Buffer'First + 1;
+
+               exit when Last < Buffer'Last;
+            end;
+         end loop;
+
+         Ada.Text_IO.Put_Line (Stream_Element_Offset'Image (Pack_Size));
+
+         ZLib.Close (Filter);
+      end loop;
+
+      exit when not Continuous;
+
+      File_Size := File_Size + 1;
+   end loop;
+end Read;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/readme.txt
new file mode 100644
index 000000000..ce4d2cadf
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/readme.txt
@@ -0,0 +1,65 @@
+                        ZLib for Ada thick binding (ZLib.Ada)
+                        Release 1.3
+
+ZLib.Ada is a thick binding interface to the popular ZLib data
+compression library, available at http://www.gzip.org/zlib/.
+It provides Ada-style access to the ZLib C library.
+
+
+        Here are the main changes since ZLib.Ada 1.2:
+
+- Attension: ZLib.Read generic routine have a initialization requirement
+  for Read_Last parameter now. It is a bit incompartible with previous version,
+  but extends functionality, we could use new parameters Allow_Read_Some and
+  Flush now.
+
+- Added Is_Open routines to ZLib and ZLib.Streams packages.
+
+- Add pragma Assert to check Stream_Element is 8 bit.
+
+- Fix extraction to buffer with exact known decompressed size. Error reported by
+  Steve Sangwine.
+
+- Fix definition of ULong (changed to unsigned_long), fix regression on 64 bits
+  computers. Patch provided by Pascal Obry.
+
+- Add Status_Error exception definition.
+
+- Add pragma Assertion that Ada.Streams.Stream_Element size is 8 bit.
+
+
+        How to build ZLib.Ada under GNAT
+
+You should have the ZLib library already build on your computer, before
+building ZLib.Ada. Make the directory of ZLib.Ada sources current and
+issue the command:
+
+  gnatmake test -largs -L<directory where libz.a is> -lz
+
+Or use the GNAT project file build for GNAT 3.15 or later:
+
+  gnatmake -Pzlib.gpr -L<directory where libz.a is>
+
+
+        How to build ZLib.Ada under Aonix ObjectAda for Win32 7.2.2
+
+1. Make a project with all *.ads and *.adb files from the distribution.
+2. Build the libz.a library from the ZLib C sources.
+3. Rename libz.a to z.lib.
+4. Add the library z.lib to the project.
+5. Add the libc.lib library from the ObjectAda distribution to the project.
+6. Build the executable using test.adb as a main procedure.
+
+
+        How to use ZLib.Ada
+
+The source files test.adb and read.adb are small demo programs that show
+the main functionality of ZLib.Ada.
+
+The routines from the package specifications are commented.
+
+
+Homepage: http://zlib-ada.sourceforge.net/
+Author: Dmitriy Anisimkov <anisimkov@yahoo.com>
+
+Contributors: Pascal Obry <pascal@obry.org>, Steve Sangwine <sjs@essex.ac.uk>
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/test.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/test.adb
new file mode 100644
index 000000000..90773acfa
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/test.adb
@@ -0,0 +1,463 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: test.adb,v 1.17 2003/08/12 12:13:30 vagul Exp $
+
+--  The program has a few aims.
+--  1. Test ZLib.Ada95 thick binding functionality.
+--  2. Show the example of use main functionality of the ZLib.Ada95 binding.
+--  3. Build this program automatically compile all ZLib.Ada95 packages under
+--     GNAT Ada95 compiler.
+
+with ZLib.Streams;
+with Ada.Streams.Stream_IO;
+with Ada.Numerics.Discrete_Random;
+
+with Ada.Text_IO;
+
+with Ada.Calendar;
+
+procedure Test is
+
+   use Ada.Streams;
+   use Stream_IO;
+
+   ------------------------------------
+   --  Test configuration parameters --
+   ------------------------------------
+
+   File_Size   : Count   := 100_000;
+   Continuous  : constant Boolean := False;
+
+   Header      : constant ZLib.Header_Type := ZLib.Default;
+                                              --  ZLib.None;
+                                              --  ZLib.Auto;
+                                              --  ZLib.GZip;
+   --  Do not use Header other then Default in ZLib versions 1.1.4
+   --  and older.
+
+   Strategy    : constant ZLib.Strategy_Type := ZLib.Default_Strategy;
+   Init_Random : constant := 10;
+
+   -- End --
+
+   In_File_Name  : constant String := "testzlib.in";
+   --  Name of the input file
+
+   Z_File_Name   : constant String := "testzlib.zlb";
+   --  Name of the compressed file.
+
+   Out_File_Name : constant String := "testzlib.out";
+   --  Name of the decompressed file.
+
+   File_In   : File_Type;
+   File_Out  : File_Type;
+   File_Back : File_Type;
+   File_Z    : ZLib.Streams.Stream_Type;
+
+   Filter : ZLib.Filter_Type;
+
+   Time_Stamp : Ada.Calendar.Time;
+
+   procedure Generate_File;
+   --  Generate file of spetsified size with some random data.
+   --  The random data is repeatable, for the good compression.
+
+   procedure Compare_Streams
+     (Left, Right : in out Root_Stream_Type'Class);
+   --  The procedure compearing data in 2 streams.
+   --  It is for compare data before and after compression/decompression.
+
+   procedure Compare_Files (Left, Right : String);
+   --  Compare files. Based on the Compare_Streams.
+
+   procedure Copy_Streams
+     (Source, Target : in out Root_Stream_Type'Class;
+      Buffer_Size    : in     Stream_Element_Offset := 1024);
+   --  Copying data from one stream to another. It is for test stream
+   --  interface of the library.
+
+   procedure Data_In
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Generic_Translate.
+   --  reading data from the File_In.
+
+   procedure Data_Out (Item : in Stream_Element_Array);
+   --  this procedure is for generic instantiation of
+   --  ZLib.Generic_Translate.
+   --  writing data to the File_Out.
+
+   procedure Stamp;
+   --  Store the timestamp to the local variable.
+
+   procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count);
+   --  Print the time statistic with the message.
+
+   procedure Translate is new ZLib.Generic_Translate
+                                (Data_In  => Data_In,
+                                 Data_Out => Data_Out);
+   --  This procedure is moving data from File_In to File_Out
+   --  with compression or decompression, depend on initialization of
+   --  Filter parameter.
+
+   -------------------
+   -- Compare_Files --
+   -------------------
+
+   procedure Compare_Files (Left, Right : String) is
+      Left_File, Right_File : File_Type;
+   begin
+      Open (Left_File, In_File, Left);
+      Open (Right_File, In_File, Right);
+      Compare_Streams (Stream (Left_File).all, Stream (Right_File).all);
+      Close (Left_File);
+      Close (Right_File);
+   end Compare_Files;
+
+   ---------------------
+   -- Compare_Streams --
+   ---------------------
+
+   procedure Compare_Streams
+     (Left, Right : in out Ada.Streams.Root_Stream_Type'Class)
+   is
+      Left_Buffer, Right_Buffer : Stream_Element_Array (0 .. 16#FFF#);
+      Left_Last, Right_Last : Stream_Element_Offset;
+   begin
+      loop
+         Read (Left, Left_Buffer, Left_Last);
+         Read (Right, Right_Buffer, Right_Last);
+
+         if Left_Last /= Right_Last then
+            Ada.Text_IO.Put_Line ("Compare error :"
+              & Stream_Element_Offset'Image (Left_Last)
+              & " /= "
+              & Stream_Element_Offset'Image (Right_Last));
+
+            raise Constraint_Error;
+
+         elsif Left_Buffer (0 .. Left_Last)
+               /= Right_Buffer (0 .. Right_Last)
+         then
+            Ada.Text_IO.Put_Line ("ERROR: IN and OUT files is not equal.");
+            raise Constraint_Error;
+
+         end if;
+
+         exit when Left_Last < Left_Buffer'Last;
+      end loop;
+   end Compare_Streams;
+
+   ------------------
+   -- Copy_Streams --
+   ------------------
+
+   procedure Copy_Streams
+     (Source, Target : in out Ada.Streams.Root_Stream_Type'Class;
+      Buffer_Size    : in     Stream_Element_Offset := 1024)
+   is
+      Buffer : Stream_Element_Array (1 .. Buffer_Size);
+      Last   : Stream_Element_Offset;
+   begin
+      loop
+         Read  (Source, Buffer, Last);
+         Write (Target, Buffer (1 .. Last));
+
+         exit when Last < Buffer'Last;
+      end loop;
+   end Copy_Streams;
+
+   -------------
+   -- Data_In --
+   -------------
+
+   procedure Data_In
+     (Item : out Stream_Element_Array;
+      Last : out Stream_Element_Offset) is
+   begin
+      Read (File_In, Item, Last);
+   end Data_In;
+
+   --------------
+   -- Data_Out --
+   --------------
+
+   procedure Data_Out (Item : in Stream_Element_Array) is
+   begin
+      Write (File_Out, Item);
+   end Data_Out;
+
+   -------------------
+   -- Generate_File --
+   -------------------
+
+   procedure Generate_File is
+      subtype Visible_Symbols is Stream_Element range 16#20# .. 16#7E#;
+
+      package Random_Elements is
+         new Ada.Numerics.Discrete_Random (Visible_Symbols);
+
+      Gen    : Random_Elements.Generator;
+      Buffer : Stream_Element_Array := (1 .. 77 => 16#20#) & 10;
+
+      Buffer_Count : constant Count := File_Size / Buffer'Length;
+      --  Number of same buffers in the packet.
+
+      Density : constant Count := 30; --  from 0 to Buffer'Length - 2;
+
+      procedure Fill_Buffer (J, D : in Count);
+      --  Change the part of the buffer.
+
+      -----------------
+      -- Fill_Buffer --
+      -----------------
+
+      procedure Fill_Buffer (J, D : in Count) is
+      begin
+         for K in 0 .. D loop
+            Buffer
+              (Stream_Element_Offset ((J + K) mod (Buffer'Length - 1) + 1))
+             := Random_Elements.Random (Gen);
+
+         end loop;
+      end Fill_Buffer;
+
+   begin
+      Random_Elements.Reset (Gen, Init_Random);
+
+      Create (File_In, Out_File, In_File_Name);
+
+      Fill_Buffer (1, Buffer'Length - 2);
+
+      for J in 1 .. Buffer_Count loop
+         Write (File_In, Buffer);
+
+         Fill_Buffer (J, Density);
+      end loop;
+
+      --  fill remain size.
+
+      Write
+        (File_In,
+         Buffer
+           (1 .. Stream_Element_Offset
+                   (File_Size - Buffer'Length * Buffer_Count)));
+
+      Flush (File_In);
+      Close (File_In);
+   end Generate_File;
+
+   ---------------------
+   -- Print_Statistic --
+   ---------------------
+
+   procedure Print_Statistic (Msg : String; Data_Size : ZLib.Count) is
+      use Ada.Calendar;
+      use Ada.Text_IO;
+
+      package Count_IO is new Integer_IO (ZLib.Count);
+
+      Curr_Dur : Duration := Clock - Time_Stamp;
+   begin
+      Put (Msg);
+
+      Set_Col (20);
+      Ada.Text_IO.Put ("size =");
+
+      Count_IO.Put
+        (Data_Size,
+         Width => Stream_IO.Count'Image (File_Size)'Length);
+
+      Put_Line (" duration =" & Duration'Image (Curr_Dur));
+   end Print_Statistic;
+
+   -----------
+   -- Stamp --
+   -----------
+
+   procedure Stamp is
+   begin
+      Time_Stamp := Ada.Calendar.Clock;
+   end Stamp;
+
+begin
+   Ada.Text_IO.Put_Line ("ZLib " & ZLib.Version);
+
+   loop
+      Generate_File;
+
+      for Level in ZLib.Compression_Level'Range loop
+
+         Ada.Text_IO.Put_Line ("Level ="
+            & ZLib.Compression_Level'Image (Level));
+
+         --  Test generic interface.
+         Open   (File_In, In_File, In_File_Name);
+         Create (File_Out, Out_File, Z_File_Name);
+
+         Stamp;
+
+         --  Deflate using generic instantiation.
+
+         ZLib.Deflate_Init
+               (Filter   => Filter,
+                Level    => Level,
+                Strategy => Strategy,
+                Header   => Header);
+
+         Translate (Filter);
+         Print_Statistic ("Generic compress", ZLib.Total_Out (Filter));
+         ZLib.Close (Filter);
+
+         Close (File_In);
+         Close (File_Out);
+
+         Open   (File_In, In_File, Z_File_Name);
+         Create (File_Out, Out_File, Out_File_Name);
+
+         Stamp;
+
+         --  Inflate using generic instantiation.
+
+         ZLib.Inflate_Init (Filter, Header => Header);
+
+         Translate (Filter);
+         Print_Statistic ("Generic decompress", ZLib.Total_Out (Filter));
+
+         ZLib.Close (Filter);
+
+         Close (File_In);
+         Close (File_Out);
+
+         Compare_Files (In_File_Name, Out_File_Name);
+
+         --  Test stream interface.
+
+         --  Compress to the back stream.
+
+         Open   (File_In, In_File, In_File_Name);
+         Create (File_Back, Out_File, Z_File_Name);
+
+         Stamp;
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.Out_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => True,
+            Level           => Level,
+            Strategy        => Strategy,
+            Header          => Header);
+
+         Copy_Streams
+           (Source => Stream (File_In).all,
+            Target => File_Z);
+
+         --  Flushing internal buffers to the back stream.
+
+         ZLib.Streams.Flush (File_Z, ZLib.Finish);
+
+         Print_Statistic ("Write compress",
+                          ZLib.Streams.Write_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+
+         Close (File_In);
+         Close (File_Back);
+
+         --  Compare reading from original file and from
+         --  decompression stream.
+
+         Open (File_In,   In_File, In_File_Name);
+         Open (File_Back, In_File, Z_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.In_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => True,
+            Header          => Header);
+
+         Stamp;
+         Compare_Streams (Stream (File_In).all, File_Z);
+
+         Print_Statistic ("Read decompress",
+                          ZLib.Streams.Read_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+         Close (File_In);
+         Close (File_Back);
+
+         --  Compress by reading from compression stream.
+
+         Open (File_Back, In_File, In_File_Name);
+         Create (File_Out, Out_File, Z_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.In_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => False,
+            Level           => Level,
+            Strategy        => Strategy,
+            Header          => Header);
+
+         Stamp;
+         Copy_Streams
+           (Source => File_Z,
+            Target => Stream (File_Out).all);
+
+         Print_Statistic ("Read compress",
+                          ZLib.Streams.Read_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+
+         Close (File_Out);
+         Close (File_Back);
+
+         --  Decompress to decompression stream.
+
+         Open   (File_In,   In_File, Z_File_Name);
+         Create (File_Back, Out_File, Out_File_Name);
+
+         ZLib.Streams.Create
+           (Stream          => File_Z,
+            Mode            => ZLib.Streams.Out_Stream,
+            Back            => ZLib.Streams.Stream_Access
+                                 (Stream (File_Back)),
+            Back_Compressed => False,
+            Header          => Header);
+
+         Stamp;
+
+         Copy_Streams
+           (Source => Stream (File_In).all,
+            Target => File_Z);
+
+         Print_Statistic ("Write decompress",
+                          ZLib.Streams.Write_Total_Out (File_Z));
+
+         ZLib.Streams.Close (File_Z);
+         Close (File_In);
+         Close (File_Back);
+
+         Compare_Files (In_File_Name, Out_File_Name);
+      end loop;
+
+      Ada.Text_IO.Put_Line (Count'Image (File_Size) & " Ok.");
+
+      exit when not Continuous;
+
+      File_Size := File_Size + 1;
+   end loop;
+end Test;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-streams.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-streams.adb
new file mode 100644
index 000000000..b6497bae2
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-streams.adb
@@ -0,0 +1,225 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-streams.adb,v 1.10 2004/05/31 10:53:40 vagul Exp $
+
+with Ada.Unchecked_Deallocation;
+
+package body ZLib.Streams is
+
+   -----------
+   -- Close --
+   -----------
+
+   procedure Close (Stream : in out Stream_Type) is
+      procedure Free is new Ada.Unchecked_Deallocation
+         (Stream_Element_Array, Buffer_Access);
+   begin
+      if Stream.Mode = Out_Stream or Stream.Mode = Duplex then
+         --  We should flush the data written by the writer.
+
+         Flush (Stream, Finish);
+
+         Close (Stream.Writer);
+      end if;
+
+      if Stream.Mode = In_Stream or Stream.Mode = Duplex then
+         Close (Stream.Reader);
+         Free (Stream.Buffer);
+      end if;
+   end Close;
+
+   ------------
+   -- Create --
+   ------------
+
+   procedure Create
+     (Stream            :    out Stream_Type;
+      Mode              : in     Stream_Mode;
+      Back              : in     Stream_Access;
+      Back_Compressed   : in     Boolean;
+      Level             : in     Compression_Level := Default_Compression;
+      Strategy          : in     Strategy_Type     := Default_Strategy;
+      Header            : in     Header_Type       := Default;
+      Read_Buffer_Size  : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size;
+      Write_Buffer_Size : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size)
+   is
+
+      subtype Buffer_Subtype is Stream_Element_Array (1 .. Read_Buffer_Size);
+
+      procedure Init_Filter
+         (Filter   : in out Filter_Type;
+          Compress : in     Boolean);
+
+      -----------------
+      -- Init_Filter --
+      -----------------
+
+      procedure Init_Filter
+         (Filter   : in out Filter_Type;
+          Compress : in     Boolean) is
+      begin
+         if Compress then
+            Deflate_Init
+              (Filter, Level, Strategy, Header => Header);
+         else
+            Inflate_Init (Filter, Header => Header);
+         end if;
+      end Init_Filter;
+
+   begin
+      Stream.Back := Back;
+      Stream.Mode := Mode;
+
+      if Mode = Out_Stream or Mode = Duplex then
+         Init_Filter (Stream.Writer, Back_Compressed);
+         Stream.Buffer_Size := Write_Buffer_Size;
+      else
+         Stream.Buffer_Size := 0;
+      end if;
+
+      if Mode = In_Stream or Mode = Duplex then
+         Init_Filter (Stream.Reader, not Back_Compressed);
+
+         Stream.Buffer     := new Buffer_Subtype;
+         Stream.Rest_First := Stream.Buffer'Last + 1;
+         Stream.Rest_Last  := Stream.Buffer'Last;
+      end if;
+   end Create;
+
+   -----------
+   -- Flush --
+   -----------
+
+   procedure Flush
+     (Stream : in out Stream_Type;
+      Mode   : in     Flush_Mode := Sync_Flush)
+   is
+      Buffer : Stream_Element_Array (1 .. Stream.Buffer_Size);
+      Last   : Stream_Element_Offset;
+   begin
+      loop
+         Flush (Stream.Writer, Buffer, Last, Mode);
+
+         Ada.Streams.Write (Stream.Back.all, Buffer (1 .. Last));
+
+         exit when Last < Buffer'Last;
+      end loop;
+   end Flush;
+
+   -------------
+   -- Is_Open --
+   -------------
+
+   function Is_Open (Stream : Stream_Type) return Boolean is
+   begin
+      return Is_Open (Stream.Reader) or else Is_Open (Stream.Writer);
+   end Is_Open;
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Stream : in out Stream_Type;
+      Item   :    out Stream_Element_Array;
+      Last   :    out Stream_Element_Offset)
+   is
+
+      procedure Read
+        (Item : out Stream_Element_Array;
+         Last : out Stream_Element_Offset);
+
+      ----------
+      -- Read --
+      ----------
+
+      procedure Read
+        (Item : out Stream_Element_Array;
+         Last : out Stream_Element_Offset) is
+      begin
+         Ada.Streams.Read (Stream.Back.all, Item, Last);
+      end Read;
+
+      procedure Read is new ZLib.Read
+         (Read       => Read,
+          Buffer     => Stream.Buffer.all,
+          Rest_First => Stream.Rest_First,
+          Rest_Last  => Stream.Rest_Last);
+
+   begin
+      Read (Stream.Reader, Item, Last);
+   end Read;
+
+   -------------------
+   -- Read_Total_In --
+   -------------------
+
+   function Read_Total_In (Stream : in Stream_Type) return Count is
+   begin
+      return Total_In (Stream.Reader);
+   end Read_Total_In;
+
+   --------------------
+   -- Read_Total_Out --
+   --------------------
+
+   function Read_Total_Out (Stream : in Stream_Type) return Count is
+   begin
+      return Total_Out (Stream.Reader);
+   end Read_Total_Out;
+
+   -----------
+   -- Write --
+   -----------
+
+   procedure Write
+     (Stream : in out Stream_Type;
+      Item   : in     Stream_Element_Array)
+   is
+
+      procedure Write (Item : in Stream_Element_Array);
+
+      -----------
+      -- Write --
+      -----------
+
+      procedure Write (Item : in Stream_Element_Array) is
+      begin
+         Ada.Streams.Write (Stream.Back.all, Item);
+      end Write;
+
+      procedure Write is new ZLib.Write
+         (Write       => Write,
+          Buffer_Size => Stream.Buffer_Size);
+
+   begin
+      Write (Stream.Writer, Item, No_Flush);
+   end Write;
+
+   --------------------
+   -- Write_Total_In --
+   --------------------
+
+   function Write_Total_In (Stream : in Stream_Type) return Count is
+   begin
+      return Total_In (Stream.Writer);
+   end Write_Total_In;
+
+   ---------------------
+   -- Write_Total_Out --
+   ---------------------
+
+   function Write_Total_Out (Stream : in Stream_Type) return Count is
+   begin
+      return Total_Out (Stream.Writer);
+   end Write_Total_Out;
+
+end ZLib.Streams;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-streams.ads b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-streams.ads
new file mode 100644
index 000000000..8e26cd450
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-streams.ads
@@ -0,0 +1,114 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-streams.ads,v 1.12 2004/05/31 10:53:40 vagul Exp $
+
+package ZLib.Streams is
+
+   type Stream_Mode is (In_Stream, Out_Stream, Duplex);
+
+   type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class;
+
+   type Stream_Type is
+      new Ada.Streams.Root_Stream_Type with private;
+
+   procedure Read
+     (Stream : in out Stream_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset);
+
+   procedure Write
+     (Stream : in out Stream_Type;
+      Item   : in     Ada.Streams.Stream_Element_Array);
+
+   procedure Flush
+     (Stream : in out Stream_Type;
+      Mode   : in     Flush_Mode := Sync_Flush);
+   --  Flush the written data to the back stream,
+   --  all data placed to the compressor is flushing to the Back stream.
+   --  Should not be used until necessary, because it is decreasing
+   --  compression.
+
+   function Read_Total_In (Stream : in Stream_Type) return Count;
+   pragma Inline (Read_Total_In);
+   --  Return total number of bytes read from back stream so far.
+
+   function Read_Total_Out (Stream : in Stream_Type) return Count;
+   pragma Inline (Read_Total_Out);
+   --  Return total number of bytes read so far.
+
+   function Write_Total_In (Stream : in Stream_Type) return Count;
+   pragma Inline (Write_Total_In);
+   --  Return total number of bytes written so far.
+
+   function Write_Total_Out (Stream : in Stream_Type) return Count;
+   pragma Inline (Write_Total_Out);
+   --  Return total number of bytes written to the back stream.
+
+   procedure Create
+     (Stream            :    out Stream_Type;
+      Mode              : in     Stream_Mode;
+      Back              : in     Stream_Access;
+      Back_Compressed   : in     Boolean;
+      Level             : in     Compression_Level := Default_Compression;
+      Strategy          : in     Strategy_Type     := Default_Strategy;
+      Header            : in     Header_Type       := Default;
+      Read_Buffer_Size  : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size;
+      Write_Buffer_Size : in     Ada.Streams.Stream_Element_Offset
+                                    := Default_Buffer_Size);
+   --  Create the Comression/Decompression stream.
+   --  If mode is In_Stream then Write operation is disabled.
+   --  If mode is Out_Stream then Read operation is disabled.
+
+   --  If Back_Compressed is true then
+   --  Data written to the Stream is compressing to the Back stream
+   --  and data read from the Stream is decompressed data from the Back stream.
+
+   --  If Back_Compressed is false then
+   --  Data written to the Stream is decompressing to the Back stream
+   --  and data read from the Stream is compressed data from the Back stream.
+
+   --  !!! When the Need_Header is False ZLib-Ada is using undocumented
+   --  ZLib 1.1.4 functionality to do not create/wait for ZLib headers.
+
+   function Is_Open (Stream : Stream_Type) return Boolean;
+
+   procedure Close (Stream : in out Stream_Type);
+
+private
+
+   use Ada.Streams;
+
+   type Buffer_Access is access all Stream_Element_Array;
+
+   type Stream_Type
+     is new Root_Stream_Type with
+   record
+      Mode       : Stream_Mode;
+
+      Buffer     : Buffer_Access;
+      Rest_First : Stream_Element_Offset;
+      Rest_Last  : Stream_Element_Offset;
+      --  Buffer for Read operation.
+      --  We need to have this buffer in the record
+      --  because not all read data from back stream
+      --  could be processed during the read operation.
+
+      Buffer_Size : Stream_Element_Offset;
+      --  Buffer size for write operation.
+      --  We do not need to have this buffer
+      --  in the record because all data could be
+      --  processed in the write operation.
+
+      Back       : Stream_Access;
+      Reader     : Filter_Type;
+      Writer     : Filter_Type;
+   end record;
+
+end ZLib.Streams;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-thin.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-thin.adb
new file mode 100644
index 000000000..0ca4a7120
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-thin.adb
@@ -0,0 +1,141 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-thin.adb,v 1.8 2003/12/14 18:27:31 vagul Exp $
+
+package body ZLib.Thin is
+
+   ZLIB_VERSION  : constant Chars_Ptr := zlibVersion;
+
+   Z_Stream_Size : constant Int := Z_Stream'Size / System.Storage_Unit;
+
+   --------------
+   -- Avail_In --
+   --------------
+
+   function Avail_In (Strm : in Z_Stream) return UInt is
+   begin
+      return Strm.Avail_In;
+   end Avail_In;
+
+   ---------------
+   -- Avail_Out --
+   ---------------
+
+   function Avail_Out (Strm : in Z_Stream) return UInt is
+   begin
+      return Strm.Avail_Out;
+   end Avail_Out;
+
+   ------------------
+   -- Deflate_Init --
+   ------------------
+
+   function Deflate_Init
+     (strm       : Z_Streamp;
+      level      : Int;
+      method     : Int;
+      windowBits : Int;
+      memLevel   : Int;
+      strategy   : Int)
+      return       Int is
+   begin
+      return deflateInit2
+               (strm,
+                level,
+                method,
+                windowBits,
+                memLevel,
+                strategy,
+                ZLIB_VERSION,
+                Z_Stream_Size);
+   end Deflate_Init;
+
+   ------------------
+   -- Inflate_Init --
+   ------------------
+
+   function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int is
+   begin
+      return inflateInit2 (strm, windowBits, ZLIB_VERSION, Z_Stream_Size);
+   end Inflate_Init;
+
+   ------------------------
+   -- Last_Error_Message --
+   ------------------------
+
+   function Last_Error_Message (Strm : in Z_Stream) return String is
+      use Interfaces.C.Strings;
+   begin
+      if Strm.msg = Null_Ptr then
+         return "";
+      else
+         return Value (Strm.msg);
+      end if;
+   end Last_Error_Message;
+
+   ------------
+   -- Set_In --
+   ------------
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in     Voidp;
+      Size   : in     UInt) is
+   begin
+      Strm.Next_In  := Buffer;
+      Strm.Avail_In := Size;
+   end Set_In;
+
+   ------------------
+   -- Set_Mem_Func --
+   ------------------
+
+   procedure Set_Mem_Func
+     (Strm   : in out Z_Stream;
+      Opaque : in     Voidp;
+      Alloc  : in     alloc_func;
+      Free   : in     free_func) is
+   begin
+      Strm.opaque := Opaque;
+      Strm.zalloc := Alloc;
+      Strm.zfree  := Free;
+   end Set_Mem_Func;
+
+   -------------
+   -- Set_Out --
+   -------------
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in     Voidp;
+      Size   : in     UInt) is
+   begin
+      Strm.Next_Out  := Buffer;
+      Strm.Avail_Out := Size;
+   end Set_Out;
+
+   --------------
+   -- Total_In --
+   --------------
+
+   function Total_In (Strm : in Z_Stream) return ULong is
+   begin
+      return Strm.Total_In;
+   end Total_In;
+
+   ---------------
+   -- Total_Out --
+   ---------------
+
+   function Total_Out (Strm : in Z_Stream) return ULong is
+   begin
+      return Strm.Total_Out;
+   end Total_Out;
+
+end ZLib.Thin;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-thin.ads b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-thin.ads
new file mode 100644
index 000000000..810173cff
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib-thin.ads
@@ -0,0 +1,450 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2003 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib-thin.ads,v 1.11 2004/07/23 06:33:11 vagul Exp $
+
+with Interfaces.C.Strings;
+
+with System;
+
+private package ZLib.Thin is
+
+   --  From zconf.h
+
+   MAX_MEM_LEVEL : constant := 9;         --  zconf.h:105
+                                          --  zconf.h:105
+   MAX_WBITS : constant := 15;      --  zconf.h:115
+                                    --  32K LZ77 window
+                                    --  zconf.h:115
+   SEEK_SET : constant := 8#0000#;  --  zconf.h:244
+                                    --  Seek from beginning of file.
+                                    --  zconf.h:244
+   SEEK_CUR : constant := 1;        --  zconf.h:245
+                                    --  Seek from current position.
+                                    --  zconf.h:245
+   SEEK_END : constant := 2;        --  zconf.h:246
+                                    --  Set file pointer to EOF plus "offset"
+                                    --  zconf.h:246
+
+   type Byte is new Interfaces.C.unsigned_char; --  8 bits
+                                                --  zconf.h:214
+   type UInt is new Interfaces.C.unsigned;      --  16 bits or more
+                                                --  zconf.h:216
+   type Int is new Interfaces.C.int;
+
+   type ULong is new Interfaces.C.unsigned_long;     --  32 bits or more
+                                                     --  zconf.h:217
+   subtype Chars_Ptr is Interfaces.C.Strings.chars_ptr;
+
+   type ULong_Access is access ULong;
+   type Int_Access is access Int;
+
+   subtype Voidp is System.Address;            --  zconf.h:232
+
+   subtype Byte_Access is Voidp;
+
+   Nul : constant Voidp := System.Null_Address;
+   --  end from zconf
+
+   Z_NO_FLUSH : constant := 8#0000#;   --  zlib.h:125
+                                       --  zlib.h:125
+   Z_PARTIAL_FLUSH : constant := 1;       --  zlib.h:126
+                                          --  will be removed, use
+                                          --  Z_SYNC_FLUSH instead
+                                          --  zlib.h:126
+   Z_SYNC_FLUSH : constant := 2;       --  zlib.h:127
+                                       --  zlib.h:127
+   Z_FULL_FLUSH : constant := 3;       --  zlib.h:128
+                                       --  zlib.h:128
+   Z_FINISH : constant := 4;        --  zlib.h:129
+                                    --  zlib.h:129
+   Z_OK : constant := 8#0000#;   --  zlib.h:132
+                                 --  zlib.h:132
+   Z_STREAM_END : constant := 1;       --  zlib.h:133
+                                       --  zlib.h:133
+   Z_NEED_DICT : constant := 2;        --  zlib.h:134
+                                       --  zlib.h:134
+   Z_ERRNO : constant := -1;        --  zlib.h:135
+                                    --  zlib.h:135
+   Z_STREAM_ERROR : constant := -2;       --  zlib.h:136
+                                          --  zlib.h:136
+   Z_DATA_ERROR : constant := -3;      --  zlib.h:137
+                                       --  zlib.h:137
+   Z_MEM_ERROR : constant := -4;       --  zlib.h:138
+                                       --  zlib.h:138
+   Z_BUF_ERROR : constant := -5;       --  zlib.h:139
+                                       --  zlib.h:139
+   Z_VERSION_ERROR : constant := -6;      --  zlib.h:140
+                                          --  zlib.h:140
+   Z_NO_COMPRESSION : constant := 8#0000#;   --  zlib.h:145
+                                             --  zlib.h:145
+   Z_BEST_SPEED : constant := 1;       --  zlib.h:146
+                                       --  zlib.h:146
+   Z_BEST_COMPRESSION : constant := 9;       --  zlib.h:147
+                                             --  zlib.h:147
+   Z_DEFAULT_COMPRESSION : constant := -1;      --  zlib.h:148
+                                                --  zlib.h:148
+   Z_FILTERED : constant := 1;      --  zlib.h:151
+                                    --  zlib.h:151
+   Z_HUFFMAN_ONLY : constant := 2;        --  zlib.h:152
+                                          --  zlib.h:152
+   Z_DEFAULT_STRATEGY : constant := 8#0000#; --  zlib.h:153
+                                             --  zlib.h:153
+   Z_BINARY : constant := 8#0000#;  --  zlib.h:156
+                                    --  zlib.h:156
+   Z_ASCII : constant := 1;      --  zlib.h:157
+                                 --  zlib.h:157
+   Z_UNKNOWN : constant := 2;       --  zlib.h:158
+                                    --  zlib.h:158
+   Z_DEFLATED : constant := 8;      --  zlib.h:161
+                                    --  zlib.h:161
+   Z_NULL : constant := 8#0000#; --  zlib.h:164
+                                 --  for initializing zalloc, zfree, opaque
+                                 --  zlib.h:164
+   type gzFile is new Voidp;                  --  zlib.h:646
+
+   type Z_Stream is private;
+
+   type Z_Streamp is access all Z_Stream;     --  zlib.h:89
+
+   type alloc_func is access function
+     (Opaque : Voidp;
+      Items  : UInt;
+      Size   : UInt)
+      return Voidp; --  zlib.h:63
+
+   type free_func is access procedure (opaque : Voidp; address : Voidp);
+
+   function zlibVersion return Chars_Ptr;
+
+   function Deflate (strm : Z_Streamp; flush : Int) return Int;
+
+   function DeflateEnd (strm : Z_Streamp) return Int;
+
+   function Inflate (strm : Z_Streamp; flush : Int) return Int;
+
+   function InflateEnd (strm : Z_Streamp) return Int;
+
+   function deflateSetDictionary
+     (strm       : Z_Streamp;
+      dictionary : Byte_Access;
+      dictLength : UInt)
+      return       Int;
+
+   function deflateCopy (dest : Z_Streamp; source : Z_Streamp) return Int;
+   --  zlib.h:478
+
+   function deflateReset (strm : Z_Streamp) return Int; -- zlib.h:495
+
+   function deflateParams
+     (strm     : Z_Streamp;
+      level    : Int;
+      strategy : Int)
+      return     Int;       -- zlib.h:506
+
+   function inflateSetDictionary
+     (strm       : Z_Streamp;
+      dictionary : Byte_Access;
+      dictLength : UInt)
+      return       Int; --  zlib.h:548
+
+   function inflateSync (strm : Z_Streamp) return Int;  --  zlib.h:565
+
+   function inflateReset (strm : Z_Streamp) return Int; --  zlib.h:580
+
+   function compress
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong)
+      return      Int;           -- zlib.h:601
+
+   function compress2
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong;
+      level     : Int)
+      return      Int;          -- zlib.h:615
+
+   function uncompress
+     (dest      : Byte_Access;
+      destLen   : ULong_Access;
+      source    : Byte_Access;
+      sourceLen : ULong)
+      return      Int;
+
+   function gzopen (path : Chars_Ptr; mode : Chars_Ptr) return gzFile;
+
+   function gzdopen (fd : Int; mode : Chars_Ptr) return gzFile;
+
+   function gzsetparams
+     (file     : gzFile;
+      level    : Int;
+      strategy : Int)
+      return     Int;
+
+   function gzread
+     (file : gzFile;
+      buf  : Voidp;
+      len  : UInt)
+      return Int;
+
+   function gzwrite
+     (file : in gzFile;
+      buf  : in Voidp;
+      len  : in UInt)
+      return Int;
+
+   function gzprintf (file : in gzFile; format : in Chars_Ptr) return Int;
+
+   function gzputs (file : in gzFile; s : in Chars_Ptr) return Int;
+
+   function gzgets
+     (file : gzFile;
+      buf  : Chars_Ptr;
+      len  : Int)
+      return Chars_Ptr;
+
+   function gzputc (file : gzFile; char : Int) return Int;
+
+   function gzgetc (file : gzFile) return Int;
+
+   function gzflush (file : gzFile; flush : Int) return Int;
+
+   function gzseek
+     (file   : gzFile;
+      offset : Int;
+      whence : Int)
+      return   Int;
+
+   function gzrewind (file : gzFile) return Int;
+
+   function gztell (file : gzFile) return Int;
+
+   function gzeof (file : gzFile) return Int;
+
+   function gzclose (file : gzFile) return Int;
+
+   function gzerror (file : gzFile; errnum : Int_Access) return Chars_Ptr;
+
+   function adler32
+     (adler : ULong;
+      buf   : Byte_Access;
+      len   : UInt)
+      return  ULong;
+
+   function crc32
+     (crc  : ULong;
+      buf  : Byte_Access;
+      len  : UInt)
+      return ULong;
+
+   function deflateInit
+     (strm        : Z_Streamp;
+      level       : Int;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function deflateInit2
+     (strm        : Z_Streamp;
+      level       : Int;
+      method      : Int;
+      windowBits  : Int;
+      memLevel    : Int;
+      strategy    : Int;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function Deflate_Init
+     (strm       : Z_Streamp;
+      level      : Int;
+      method     : Int;
+      windowBits : Int;
+      memLevel   : Int;
+      strategy   : Int)
+      return       Int;
+   pragma Inline (Deflate_Init);
+
+   function inflateInit
+     (strm        : Z_Streamp;
+      version     : Chars_Ptr;
+      stream_size : Int)
+      return        Int;
+
+   function inflateInit2
+     (strm        : in Z_Streamp;
+      windowBits  : in Int;
+      version     : in Chars_Ptr;
+      stream_size : in Int)
+      return      Int;
+
+   function inflateBackInit
+     (strm        : in Z_Streamp;
+      windowBits  : in Int;
+      window      : in Byte_Access;
+      version     : in Chars_Ptr;
+      stream_size : in Int)
+      return      Int;
+   --  Size of window have to be 2**windowBits.
+
+   function Inflate_Init (strm : Z_Streamp; windowBits : Int) return Int;
+   pragma Inline (Inflate_Init);
+
+   function zError (err : Int) return Chars_Ptr;
+
+   function inflateSyncPoint (z : Z_Streamp) return Int;
+
+   function get_crc_table return ULong_Access;
+
+   --  Interface to the available fields of the z_stream structure.
+   --  The application must update next_in and avail_in when avail_in has
+   --  dropped to zero. It must update next_out and avail_out when avail_out
+   --  has dropped to zero. The application must initialize zalloc, zfree and
+   --  opaque before calling the init function.
+
+   procedure Set_In
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt);
+   pragma Inline (Set_In);
+
+   procedure Set_Out
+     (Strm   : in out Z_Stream;
+      Buffer : in Voidp;
+      Size   : in UInt);
+   pragma Inline (Set_Out);
+
+   procedure Set_Mem_Func
+     (Strm   : in out Z_Stream;
+      Opaque : in Voidp;
+      Alloc  : in alloc_func;
+      Free   : in free_func);
+   pragma Inline (Set_Mem_Func);
+
+   function Last_Error_Message (Strm : in Z_Stream) return String;
+   pragma Inline (Last_Error_Message);
+
+   function Avail_Out (Strm : in Z_Stream) return UInt;
+   pragma Inline (Avail_Out);
+
+   function Avail_In (Strm : in Z_Stream) return UInt;
+   pragma Inline (Avail_In);
+
+   function Total_In (Strm : in Z_Stream) return ULong;
+   pragma Inline (Total_In);
+
+   function Total_Out (Strm : in Z_Stream) return ULong;
+   pragma Inline (Total_Out);
+
+   function inflateCopy
+     (dest   : in Z_Streamp;
+      Source : in Z_Streamp)
+      return Int;
+
+   function compressBound (Source_Len : in ULong) return ULong;
+
+   function deflateBound
+     (Strm       : in Z_Streamp;
+      Source_Len : in ULong)
+      return     ULong;
+
+   function gzungetc (C : in Int; File : in  gzFile) return Int;
+
+   function zlibCompileFlags return ULong;
+
+private
+
+   type Z_Stream is record            -- zlib.h:68
+      Next_In   : Voidp      := Nul;  -- next input byte
+      Avail_In  : UInt       := 0;    -- number of bytes available at next_in
+      Total_In  : ULong      := 0;    -- total nb of input bytes read so far
+      Next_Out  : Voidp      := Nul;  -- next output byte should be put there
+      Avail_Out : UInt       := 0;    -- remaining free space at next_out
+      Total_Out : ULong      := 0;    -- total nb of bytes output so far
+      msg       : Chars_Ptr;          -- last error message, NULL if no error
+      state     : Voidp;              -- not visible by applications
+      zalloc    : alloc_func := null; -- used to allocate the internal state
+      zfree     : free_func  := null; -- used to free the internal state
+      opaque    : Voidp;              -- private data object passed to
+                                      --  zalloc and zfree
+      data_type : Int;                -- best guess about the data type:
+                                      --  ascii or binary
+      adler     : ULong;              -- adler32 value of the uncompressed
+                                      --  data
+      reserved  : ULong;              -- reserved for future use
+   end record;
+
+   pragma Convention (C, Z_Stream);
+
+   pragma Import (C, zlibVersion, "zlibVersion");
+   pragma Import (C, Deflate, "deflate");
+   pragma Import (C, DeflateEnd, "deflateEnd");
+   pragma Import (C, Inflate, "inflate");
+   pragma Import (C, InflateEnd, "inflateEnd");
+   pragma Import (C, deflateSetDictionary, "deflateSetDictionary");
+   pragma Import (C, deflateCopy, "deflateCopy");
+   pragma Import (C, deflateReset, "deflateReset");
+   pragma Import (C, deflateParams, "deflateParams");
+   pragma Import (C, inflateSetDictionary, "inflateSetDictionary");
+   pragma Import (C, inflateSync, "inflateSync");
+   pragma Import (C, inflateReset, "inflateReset");
+   pragma Import (C, compress, "compress");
+   pragma Import (C, compress2, "compress2");
+   pragma Import (C, uncompress, "uncompress");
+   pragma Import (C, gzopen, "gzopen");
+   pragma Import (C, gzdopen, "gzdopen");
+   pragma Import (C, gzsetparams, "gzsetparams");
+   pragma Import (C, gzread, "gzread");
+   pragma Import (C, gzwrite, "gzwrite");
+   pragma Import (C, gzprintf, "gzprintf");
+   pragma Import (C, gzputs, "gzputs");
+   pragma Import (C, gzgets, "gzgets");
+   pragma Import (C, gzputc, "gzputc");
+   pragma Import (C, gzgetc, "gzgetc");
+   pragma Import (C, gzflush, "gzflush");
+   pragma Import (C, gzseek, "gzseek");
+   pragma Import (C, gzrewind, "gzrewind");
+   pragma Import (C, gztell, "gztell");
+   pragma Import (C, gzeof, "gzeof");
+   pragma Import (C, gzclose, "gzclose");
+   pragma Import (C, gzerror, "gzerror");
+   pragma Import (C, adler32, "adler32");
+   pragma Import (C, crc32, "crc32");
+   pragma Import (C, deflateInit, "deflateInit_");
+   pragma Import (C, inflateInit, "inflateInit_");
+   pragma Import (C, deflateInit2, "deflateInit2_");
+   pragma Import (C, inflateInit2, "inflateInit2_");
+   pragma Import (C, zError, "zError");
+   pragma Import (C, inflateSyncPoint, "inflateSyncPoint");
+   pragma Import (C, get_crc_table, "get_crc_table");
+
+   --  since zlib 1.2.0:
+
+   pragma Import (C, inflateCopy, "inflateCopy");
+   pragma Import (C, compressBound, "compressBound");
+   pragma Import (C, deflateBound, "deflateBound");
+   pragma Import (C, gzungetc, "gzungetc");
+   pragma Import (C, zlibCompileFlags, "zlibCompileFlags");
+
+   pragma Import (C, inflateBackInit, "inflateBackInit_");
+
+   --  I stopped binding the inflateBack routines, because realize that
+   --  it does not support zlib and gzip headers for now, and have no
+   --  symmetric deflateBack routines.
+   --  ZLib-Ada is symmetric regarding deflate/inflate data transformation
+   --  and has a similar generic callback interface for the
+   --  deflate/inflate transformation based on the regular Deflate/Inflate
+   --  routines.
+
+   --  pragma Import (C, inflateBack, "inflateBack");
+   --  pragma Import (C, inflateBackEnd, "inflateBackEnd");
+
+end ZLib.Thin;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.adb b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.adb
new file mode 100644
index 000000000..8b6fd686a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.adb
@@ -0,0 +1,701 @@
+----------------------------------------------------------------
+--  ZLib for Ada thick binding.                               --
+--                                                            --
+--  Copyright (C) 2002-2004 Dmitriy Anisimkov                 --
+--                                                            --
+--  Open source license information is in the zlib.ads file.  --
+----------------------------------------------------------------
+
+--  $Id: zlib.adb,v 1.31 2004/09/06 06:53:19 vagul Exp $
+
+with Ada.Exceptions;
+with Ada.Unchecked_Conversion;
+with Ada.Unchecked_Deallocation;
+
+with Interfaces.C.Strings;
+
+with ZLib.Thin;
+
+package body ZLib is
+
+   use type Thin.Int;
+
+   type Z_Stream is new Thin.Z_Stream;
+
+   type Return_Code_Enum is
+      (OK,
+       STREAM_END,
+       NEED_DICT,
+       ERRNO,
+       STREAM_ERROR,
+       DATA_ERROR,
+       MEM_ERROR,
+       BUF_ERROR,
+       VERSION_ERROR);
+
+   type Flate_Step_Function is access
+     function (Strm : in Thin.Z_Streamp; Flush : in Thin.Int) return Thin.Int;
+   pragma Convention (C, Flate_Step_Function);
+
+   type Flate_End_Function is access
+      function (Ctrm : in Thin.Z_Streamp) return Thin.Int;
+   pragma Convention (C, Flate_End_Function);
+
+   type Flate_Type is record
+      Step : Flate_Step_Function;
+      Done : Flate_End_Function;
+   end record;
+
+   subtype Footer_Array is Stream_Element_Array (1 .. 8);
+
+   Simple_GZip_Header : constant Stream_Element_Array (1 .. 10)
+     := (16#1f#, 16#8b#,                 --  Magic header
+         16#08#,                         --  Z_DEFLATED
+         16#00#,                         --  Flags
+         16#00#, 16#00#, 16#00#, 16#00#, --  Time
+         16#00#,                         --  XFlags
+         16#03#                          --  OS code
+        );
+   --  The simplest gzip header is not for informational, but just for
+   --  gzip format compatibility.
+   --  Note that some code below is using assumption
+   --  Simple_GZip_Header'Last > Footer_Array'Last, so do not make
+   --  Simple_GZip_Header'Last <= Footer_Array'Last.
+
+   Return_Code : constant array (Thin.Int range <>) of Return_Code_Enum
+     := (0 => OK,
+         1 => STREAM_END,
+         2 => NEED_DICT,
+        -1 => ERRNO,
+        -2 => STREAM_ERROR,
+        -3 => DATA_ERROR,
+        -4 => MEM_ERROR,
+        -5 => BUF_ERROR,
+        -6 => VERSION_ERROR);
+
+   Flate : constant array (Boolean) of Flate_Type
+     := (True  => (Step => Thin.Deflate'Access,
+                   Done => Thin.DeflateEnd'Access),
+         False => (Step => Thin.Inflate'Access,
+                   Done => Thin.InflateEnd'Access));
+
+   Flush_Finish : constant array (Boolean) of Flush_Mode
+     := (True => Finish, False => No_Flush);
+
+   procedure Raise_Error (Stream : in Z_Stream);
+   pragma Inline (Raise_Error);
+
+   procedure Raise_Error (Message : in String);
+   pragma Inline (Raise_Error);
+
+   procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int);
+
+   procedure Free is new Ada.Unchecked_Deallocation
+      (Z_Stream, Z_Stream_Access);
+
+   function To_Thin_Access is new Ada.Unchecked_Conversion
+     (Z_Stream_Access, Thin.Z_Streamp);
+
+   procedure Translate_GZip
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  Separate translate routine for make gzip header.
+
+   procedure Translate_Auto
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  translate routine without additional headers.
+
+   -----------------
+   -- Check_Error --
+   -----------------
+
+   procedure Check_Error (Stream : in Z_Stream; Code : in Thin.Int) is
+      use type Thin.Int;
+   begin
+      if Code /= Thin.Z_OK then
+         Raise_Error
+            (Return_Code_Enum'Image (Return_Code (Code))
+              & ": " & Last_Error_Message (Stream));
+      end if;
+   end Check_Error;
+
+   -----------
+   -- Close --
+   -----------
+
+   procedure Close
+     (Filter       : in out Filter_Type;
+      Ignore_Error : in     Boolean := False)
+   is
+      Code : Thin.Int;
+   begin
+      if not Ignore_Error and then not Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      Code := Flate (Filter.Compression).Done (To_Thin_Access (Filter.Strm));
+
+      if Ignore_Error or else Code = Thin.Z_OK then
+         Free (Filter.Strm);
+      else
+         declare
+            Error_Message : constant String
+              := Last_Error_Message (Filter.Strm.all);
+         begin
+            Free (Filter.Strm);
+            Ada.Exceptions.Raise_Exception
+               (ZLib_Error'Identity,
+                Return_Code_Enum'Image (Return_Code (Code))
+                  & ": " & Error_Message);
+         end;
+      end if;
+   end Close;
+
+   -----------
+   -- CRC32 --
+   -----------
+
+   function CRC32
+     (CRC  : in Unsigned_32;
+      Data : in Ada.Streams.Stream_Element_Array)
+      return Unsigned_32
+   is
+      use Thin;
+   begin
+      return Unsigned_32 (crc32 (ULong (CRC),
+                                 Data'Address,
+                                 Data'Length));
+   end CRC32;
+
+   procedure CRC32
+     (CRC  : in out Unsigned_32;
+      Data : in     Ada.Streams.Stream_Element_Array) is
+   begin
+      CRC := CRC32 (CRC, Data);
+   end CRC32;
+
+   ------------------
+   -- Deflate_Init --
+   ------------------
+
+   procedure Deflate_Init
+     (Filter       : in out Filter_Type;
+      Level        : in     Compression_Level  := Default_Compression;
+      Strategy     : in     Strategy_Type      := Default_Strategy;
+      Method       : in     Compression_Method := Deflated;
+      Window_Bits  : in     Window_Bits_Type   := Default_Window_Bits;
+      Memory_Level : in     Memory_Level_Type  := Default_Memory_Level;
+      Header       : in     Header_Type        := Default)
+   is
+      use type Thin.Int;
+      Win_Bits : Thin.Int := Thin.Int (Window_Bits);
+   begin
+      if Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      --  We allow ZLib to make header only in case of default header type.
+      --  Otherwise we would either do header by ourselfs, or do not do
+      --  header at all.
+
+      if Header = None or else Header = GZip then
+         Win_Bits := -Win_Bits;
+      end if;
+
+      --  For the GZip CRC calculation and make headers.
+
+      if Header = GZip then
+         Filter.CRC    := 0;
+         Filter.Offset := Simple_GZip_Header'First;
+      else
+         Filter.Offset := Simple_GZip_Header'Last + 1;
+      end if;
+
+      Filter.Strm        := new Z_Stream;
+      Filter.Compression := True;
+      Filter.Stream_End  := False;
+      Filter.Header      := Header;
+
+      if Thin.Deflate_Init
+           (To_Thin_Access (Filter.Strm),
+            Level      => Thin.Int (Level),
+            method     => Thin.Int (Method),
+            windowBits => Win_Bits,
+            memLevel   => Thin.Int (Memory_Level),
+            strategy   => Thin.Int (Strategy)) /= Thin.Z_OK
+      then
+         Raise_Error (Filter.Strm.all);
+      end if;
+   end Deflate_Init;
+
+   -----------
+   -- Flush --
+   -----------
+
+   procedure Flush
+     (Filter    : in out Filter_Type;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      No_Data : Stream_Element_Array := (1 .. 0 => 0);
+      Last    : Stream_Element_Offset;
+   begin
+      Translate (Filter, No_Data, Last, Out_Data, Out_Last, Flush);
+   end Flush;
+
+   -----------------------
+   -- Generic_Translate --
+   -----------------------
+
+   procedure Generic_Translate
+     (Filter          : in out ZLib.Filter_Type;
+      In_Buffer_Size  : in     Integer := Default_Buffer_Size;
+      Out_Buffer_Size : in     Integer := Default_Buffer_Size)
+   is
+      In_Buffer  : Stream_Element_Array
+                     (1 .. Stream_Element_Offset (In_Buffer_Size));
+      Out_Buffer : Stream_Element_Array
+                     (1 .. Stream_Element_Offset (Out_Buffer_Size));
+      Last       : Stream_Element_Offset;
+      In_Last    : Stream_Element_Offset;
+      In_First   : Stream_Element_Offset;
+      Out_Last   : Stream_Element_Offset;
+   begin
+      Main : loop
+         Data_In (In_Buffer, Last);
+
+         In_First := In_Buffer'First;
+
+         loop
+            Translate
+              (Filter   => Filter,
+               In_Data  => In_Buffer (In_First .. Last),
+               In_Last  => In_Last,
+               Out_Data => Out_Buffer,
+               Out_Last => Out_Last,
+               Flush    => Flush_Finish (Last < In_Buffer'First));
+
+            if Out_Buffer'First <= Out_Last then
+               Data_Out (Out_Buffer (Out_Buffer'First .. Out_Last));
+            end if;
+
+            exit Main when Stream_End (Filter);
+
+            --  The end of in buffer.
+
+            exit when In_Last = Last;
+
+            In_First := In_Last + 1;
+         end loop;
+      end loop Main;
+
+   end Generic_Translate;
+
+   ------------------
+   -- Inflate_Init --
+   ------------------
+
+   procedure Inflate_Init
+     (Filter      : in out Filter_Type;
+      Window_Bits : in     Window_Bits_Type := Default_Window_Bits;
+      Header      : in     Header_Type      := Default)
+   is
+      use type Thin.Int;
+      Win_Bits : Thin.Int := Thin.Int (Window_Bits);
+
+      procedure Check_Version;
+      --  Check the latest header types compatibility.
+
+      procedure Check_Version is
+      begin
+         if Version <= "1.1.4" then
+            Raise_Error
+              ("Inflate header type " & Header_Type'Image (Header)
+               & " incompatible with ZLib version " & Version);
+         end if;
+      end Check_Version;
+
+   begin
+      if Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      case Header is
+         when None =>
+            Check_Version;
+
+            --  Inflate data without headers determined
+            --  by negative Win_Bits.
+
+            Win_Bits := -Win_Bits;
+         when GZip =>
+            Check_Version;
+
+            --  Inflate gzip data defined by flag 16.
+
+            Win_Bits := Win_Bits + 16;
+         when Auto =>
+            Check_Version;
+
+            --  Inflate with automatic detection
+            --  of gzip or native header defined by flag 32.
+
+            Win_Bits := Win_Bits + 32;
+         when Default => null;
+      end case;
+
+      Filter.Strm        := new Z_Stream;
+      Filter.Compression := False;
+      Filter.Stream_End  := False;
+      Filter.Header      := Header;
+
+      if Thin.Inflate_Init
+         (To_Thin_Access (Filter.Strm), Win_Bits) /= Thin.Z_OK
+      then
+         Raise_Error (Filter.Strm.all);
+      end if;
+   end Inflate_Init;
+
+   -------------
+   -- Is_Open --
+   -------------
+
+   function Is_Open (Filter : in Filter_Type) return Boolean is
+   begin
+      return Filter.Strm /= null;
+   end Is_Open;
+
+   -----------------
+   -- Raise_Error --
+   -----------------
+
+   procedure Raise_Error (Message : in String) is
+   begin
+      Ada.Exceptions.Raise_Exception (ZLib_Error'Identity, Message);
+   end Raise_Error;
+
+   procedure Raise_Error (Stream : in Z_Stream) is
+   begin
+      Raise_Error (Last_Error_Message (Stream));
+   end Raise_Error;
+
+   ----------
+   -- Read --
+   ----------
+
+   procedure Read
+     (Filter : in out Filter_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset;
+      Flush  : in     Flush_Mode := No_Flush)
+   is
+      In_Last    : Stream_Element_Offset;
+      Item_First : Ada.Streams.Stream_Element_Offset := Item'First;
+      V_Flush    : Flush_Mode := Flush;
+
+   begin
+      pragma Assert (Rest_First in Buffer'First .. Buffer'Last + 1);
+      pragma Assert (Rest_Last in Buffer'First - 1 .. Buffer'Last);
+
+      loop
+         if Rest_Last = Buffer'First - 1 then
+            V_Flush := Finish;
+
+         elsif Rest_First > Rest_Last then
+            Read (Buffer, Rest_Last);
+            Rest_First := Buffer'First;
+
+            if Rest_Last < Buffer'First then
+               V_Flush := Finish;
+            end if;
+         end if;
+
+         Translate
+           (Filter   => Filter,
+            In_Data  => Buffer (Rest_First .. Rest_Last),
+            In_Last  => In_Last,
+            Out_Data => Item (Item_First .. Item'Last),
+            Out_Last => Last,
+            Flush    => V_Flush);
+
+         Rest_First := In_Last + 1;
+
+         exit when Stream_End (Filter)
+           or else Last = Item'Last
+           or else (Last >= Item'First and then Allow_Read_Some);
+
+         Item_First := Last + 1;
+      end loop;
+   end Read;
+
+   ----------------
+   -- Stream_End --
+   ----------------
+
+   function Stream_End (Filter : in Filter_Type) return Boolean is
+   begin
+      if Filter.Header = GZip and Filter.Compression then
+         return Filter.Stream_End
+            and then Filter.Offset = Footer_Array'Last + 1;
+      else
+         return Filter.Stream_End;
+      end if;
+   end Stream_End;
+
+   --------------
+   -- Total_In --
+   --------------
+
+   function Total_In (Filter : in Filter_Type) return Count is
+   begin
+      return Count (Thin.Total_In (To_Thin_Access (Filter.Strm).all));
+   end Total_In;
+
+   ---------------
+   -- Total_Out --
+   ---------------
+
+   function Total_Out (Filter : in Filter_Type) return Count is
+   begin
+      return Count (Thin.Total_Out (To_Thin_Access (Filter.Strm).all));
+   end Total_Out;
+
+   ---------------
+   -- Translate --
+   ---------------
+
+   procedure Translate
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode) is
+   begin
+      if Filter.Header = GZip and then Filter.Compression then
+         Translate_GZip
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+      else
+         Translate_Auto
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+      end if;
+   end Translate;
+
+   --------------------
+   -- Translate_Auto --
+   --------------------
+
+   procedure Translate_Auto
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      use type Thin.Int;
+      Code : Thin.Int;
+
+   begin
+      if not Is_Open (Filter) then
+         raise Status_Error;
+      end if;
+
+      if Out_Data'Length = 0 and then In_Data'Length = 0 then
+         raise Constraint_Error;
+      end if;
+
+      Set_Out (Filter.Strm.all, Out_Data'Address, Out_Data'Length);
+      Set_In  (Filter.Strm.all, In_Data'Address, In_Data'Length);
+
+      Code := Flate (Filter.Compression).Step
+        (To_Thin_Access (Filter.Strm),
+         Thin.Int (Flush));
+
+      if Code = Thin.Z_STREAM_END then
+         Filter.Stream_End := True;
+      else
+         Check_Error (Filter.Strm.all, Code);
+      end if;
+
+      In_Last  := In_Data'Last
+         - Stream_Element_Offset (Avail_In (Filter.Strm.all));
+      Out_Last := Out_Data'Last
+         - Stream_Element_Offset (Avail_Out (Filter.Strm.all));
+   end Translate_Auto;
+
+   --------------------
+   -- Translate_GZip --
+   --------------------
+
+   procedure Translate_GZip
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode)
+   is
+      Out_First : Stream_Element_Offset;
+
+      procedure Add_Data (Data : in Stream_Element_Array);
+      --  Add data to stream from the Filter.Offset till necessary,
+      --  used for add gzip headr/footer.
+
+      procedure Put_32
+        (Item : in out Stream_Element_Array;
+         Data : in     Unsigned_32);
+      pragma Inline (Put_32);
+
+      --------------
+      -- Add_Data --
+      --------------
+
+      procedure Add_Data (Data : in Stream_Element_Array) is
+         Data_First : Stream_Element_Offset renames Filter.Offset;
+         Data_Last  : Stream_Element_Offset;
+         Data_Len   : Stream_Element_Offset; --  -1
+         Out_Len    : Stream_Element_Offset; --  -1
+      begin
+         Out_First := Out_Last + 1;
+
+         if Data_First > Data'Last then
+            return;
+         end if;
+
+         Data_Len  := Data'Last     - Data_First;
+         Out_Len   := Out_Data'Last - Out_First;
+
+         if Data_Len <= Out_Len then
+            Out_Last  := Out_First  + Data_Len;
+            Data_Last := Data'Last;
+         else
+            Out_Last  := Out_Data'Last;
+            Data_Last := Data_First + Out_Len;
+         end if;
+
+         Out_Data (Out_First .. Out_Last) := Data (Data_First .. Data_Last);
+
+         Data_First := Data_Last + 1;
+         Out_First  := Out_Last + 1;
+      end Add_Data;
+
+      ------------
+      -- Put_32 --
+      ------------
+
+      procedure Put_32
+        (Item : in out Stream_Element_Array;
+         Data : in     Unsigned_32)
+      is
+         D : Unsigned_32 := Data;
+      begin
+         for J in Item'First .. Item'First + 3 loop
+            Item (J) := Stream_Element (D and 16#FF#);
+            D := Shift_Right (D, 8);
+         end loop;
+      end Put_32;
+
+   begin
+      Out_Last := Out_Data'First - 1;
+
+      if not Filter.Stream_End then
+         Add_Data (Simple_GZip_Header);
+
+         Translate_Auto
+           (Filter   => Filter,
+            In_Data  => In_Data,
+            In_Last  => In_Last,
+            Out_Data => Out_Data (Out_First .. Out_Data'Last),
+            Out_Last => Out_Last,
+            Flush    => Flush);
+
+         CRC32 (Filter.CRC, In_Data (In_Data'First .. In_Last));
+      end if;
+
+      if Filter.Stream_End and then Out_Last <= Out_Data'Last then
+         --  This detection method would work only when
+         --  Simple_GZip_Header'Last > Footer_Array'Last
+
+         if Filter.Offset = Simple_GZip_Header'Last + 1 then
+            Filter.Offset := Footer_Array'First;
+         end if;
+
+         declare
+            Footer : Footer_Array;
+         begin
+            Put_32 (Footer, Filter.CRC);
+            Put_32 (Footer (Footer'First + 4 .. Footer'Last),
+                    Unsigned_32 (Total_In (Filter)));
+            Add_Data (Footer);
+         end;
+      end if;
+   end Translate_GZip;
+
+   -------------
+   -- Version --
+   -------------
+
+   function Version return String is
+   begin
+      return Interfaces.C.Strings.Value (Thin.zlibVersion);
+   end Version;
+
+   -----------
+   -- Write --
+   -----------
+
+   procedure Write
+     (Filter : in out Filter_Type;
+      Item   : in     Ada.Streams.Stream_Element_Array;
+      Flush  : in     Flush_Mode := No_Flush)
+   is
+      Buffer   : Stream_Element_Array (1 .. Buffer_Size);
+      In_Last  : Stream_Element_Offset;
+      Out_Last : Stream_Element_Offset;
+      In_First : Stream_Element_Offset := Item'First;
+   begin
+      if Item'Length = 0 and Flush = No_Flush then
+         return;
+      end if;
+
+      loop
+         Translate
+           (Filter   => Filter,
+            In_Data  => Item (In_First .. Item'Last),
+            In_Last  => In_Last,
+            Out_Data => Buffer,
+            Out_Last => Out_Last,
+            Flush    => Flush);
+
+         if Out_Last >= Buffer'First then
+            Write (Buffer (1 .. Out_Last));
+         end if;
+
+         exit when In_Last = Item'Last or Stream_End (Filter);
+
+         In_First := In_Last + 1;
+      end loop;
+   end Write;
+
+end ZLib;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.ads b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.ads
new file mode 100644
index 000000000..79ffc4095
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.ads
@@ -0,0 +1,328 @@
+------------------------------------------------------------------------------
+--                      ZLib for Ada thick binding.                         --
+--                                                                          --
+--              Copyright (C) 2002-2004 Dmitriy Anisimkov                   --
+--                                                                          --
+--  This library is free software; you can redistribute it and/or modify    --
+--  it under the terms of the GNU General Public License as published by    --
+--  the Free Software Foundation; either version 2 of the License, or (at   --
+--  your option) any later version.                                         --
+--                                                                          --
+--  This library is distributed in the hope that it will be useful, but     --
+--  WITHOUT ANY WARRANTY; without even the implied warranty of              --
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU       --
+--  General Public License for more details.                                --
+--                                                                          --
+--  You should have received a copy of the GNU General Public License       --
+--  along with this library; if not, write to the Free Software Foundation, --
+--  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.          --
+--                                                                          --
+--  As a special exception, if other files instantiate generics from this   --
+--  unit, or you link this unit with other files to produce an executable,  --
+--  this  unit  does not  by itself cause  the resulting executable to be   --
+--  covered by the GNU General Public License. This exception does not      --
+--  however invalidate any other reasons why the executable file  might be  --
+--  covered by the  GNU Public License.                                     --
+------------------------------------------------------------------------------
+
+--  $Id: zlib.ads,v 1.26 2004/09/06 06:53:19 vagul Exp $
+
+with Ada.Streams;
+
+with Interfaces;
+
+package ZLib is
+
+   ZLib_Error   : exception;
+   Status_Error : exception;
+
+   type Compression_Level is new Integer range -1 .. 9;
+
+   type Flush_Mode is private;
+
+   type Compression_Method is private;
+
+   type Window_Bits_Type is new Integer range 8 .. 15;
+
+   type Memory_Level_Type is new Integer range 1 .. 9;
+
+   type Unsigned_32 is new Interfaces.Unsigned_32;
+
+   type Strategy_Type is private;
+
+   type Header_Type is (None, Auto, Default, GZip);
+   --  Header type usage have a some limitation for inflate.
+   --  See comment for Inflate_Init.
+
+   subtype Count is Ada.Streams.Stream_Element_Count;
+
+   Default_Memory_Level : constant Memory_Level_Type := 8;
+   Default_Window_Bits  : constant Window_Bits_Type  := 15;
+
+   ----------------------------------
+   -- Compression method constants --
+   ----------------------------------
+
+   Deflated : constant Compression_Method;
+   --  Only one method allowed in this ZLib version
+
+   ---------------------------------
+   -- Compression level constants --
+   ---------------------------------
+
+   No_Compression      : constant Compression_Level := 0;
+   Best_Speed          : constant Compression_Level := 1;
+   Best_Compression    : constant Compression_Level := 9;
+   Default_Compression : constant Compression_Level := -1;
+
+   --------------------------
+   -- Flush mode constants --
+   --------------------------
+
+   No_Flush      : constant Flush_Mode;
+   --  Regular way for compression, no flush
+
+   Partial_Flush : constant Flush_Mode;
+   --  Will be removed, use Z_SYNC_FLUSH instead
+
+   Sync_Flush    : constant Flush_Mode;
+   --  All pending output is flushed to the output buffer and the output
+   --  is aligned on a byte boundary, so that the decompressor can get all
+   --  input data available so far. (In particular avail_in is zero after the
+   --  call if enough output space has been provided  before the call.)
+   --  Flushing may degrade compression for some compression algorithms and so
+   --  it should be used only when necessary.
+
+   Block_Flush   : constant Flush_Mode;
+   --  Z_BLOCK requests that inflate() stop
+   --  if and when it get to the next deflate block boundary. When decoding the
+   --  zlib or gzip format, this will cause inflate() to return immediately
+   --  after the header and before the first block. When doing a raw inflate,
+   --  inflate() will go ahead and process the first block, and will return
+   --  when it gets to the end of that block, or when it runs out of data.
+
+   Full_Flush    : constant Flush_Mode;
+   --  All output is flushed as with SYNC_FLUSH, and the compression state
+   --  is reset so that decompression can restart from this point if previous
+   --  compressed data has been damaged or if random access is desired. Using
+   --  Full_Flush too often can seriously degrade the compression.
+
+   Finish        : constant Flush_Mode;
+   --  Just for tell the compressor that input data is complete.
+
+   ------------------------------------
+   -- Compression strategy constants --
+   ------------------------------------
+
+   --  RLE stategy could be used only in version 1.2.0 and later.
+
+   Filtered         : constant Strategy_Type;
+   Huffman_Only     : constant Strategy_Type;
+   RLE              : constant Strategy_Type;
+   Default_Strategy : constant Strategy_Type;
+
+   Default_Buffer_Size : constant := 4096;
+
+   type Filter_Type is tagged limited private;
+   --  The filter is for compression and for decompression.
+   --  The usage of the type is depend of its initialization.
+
+   function Version return String;
+   pragma Inline (Version);
+   --  Return string representation of the ZLib version.
+
+   procedure Deflate_Init
+     (Filter       : in out Filter_Type;
+      Level        : in     Compression_Level  := Default_Compression;
+      Strategy     : in     Strategy_Type      := Default_Strategy;
+      Method       : in     Compression_Method := Deflated;
+      Window_Bits  : in     Window_Bits_Type   := Default_Window_Bits;
+      Memory_Level : in     Memory_Level_Type  := Default_Memory_Level;
+      Header       : in     Header_Type        := Default);
+   --  Compressor initialization.
+   --  When Header parameter is Auto or Default, then default zlib header
+   --  would be provided for compressed data.
+   --  When Header is GZip, then gzip header would be set instead of
+   --  default header.
+   --  When Header is None, no header would be set for compressed data.
+
+   procedure Inflate_Init
+     (Filter      : in out Filter_Type;
+      Window_Bits : in     Window_Bits_Type := Default_Window_Bits;
+      Header      : in     Header_Type      := Default);
+   --  Decompressor initialization.
+   --  Default header type mean that ZLib default header is expecting in the
+   --  input compressed stream.
+   --  Header type None mean that no header is expecting in the input stream.
+   --  GZip header type mean that GZip header is expecting in the
+   --  input compressed stream.
+   --  Auto header type mean that header type (GZip or Native) would be
+   --  detected automatically in the input stream.
+   --  Note that header types parameter values None, GZip and Auto are
+   --  supported for inflate routine only in ZLib versions 1.2.0.2 and later.
+   --  Deflate_Init is supporting all header types.
+
+   function Is_Open (Filter : in Filter_Type) return Boolean;
+   pragma Inline (Is_Open);
+   --  Is the filter opened for compression or decompression.
+
+   procedure Close
+     (Filter       : in out Filter_Type;
+      Ignore_Error : in     Boolean := False);
+   --  Closing the compression or decompressor.
+   --  If stream is closing before the complete and Ignore_Error is False,
+   --  The exception would be raised.
+
+   generic
+      with procedure Data_In
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+      with procedure Data_Out
+        (Item : in Ada.Streams.Stream_Element_Array);
+   procedure Generic_Translate
+     (Filter          : in out Filter_Type;
+      In_Buffer_Size  : in     Integer := Default_Buffer_Size;
+      Out_Buffer_Size : in     Integer := Default_Buffer_Size);
+   --  Compress/decompress data fetch from Data_In routine and pass the result
+   --  to the Data_Out routine. User should provide Data_In and Data_Out
+   --  for compression/decompression data flow.
+   --  Compression or decompression depend on Filter initialization.
+
+   function Total_In (Filter : in Filter_Type) return Count;
+   pragma Inline (Total_In);
+   --  Returns total number of input bytes read so far
+
+   function Total_Out (Filter : in Filter_Type) return Count;
+   pragma Inline (Total_Out);
+   --  Returns total number of bytes output so far
+
+   function CRC32
+     (CRC    : in Unsigned_32;
+      Data   : in Ada.Streams.Stream_Element_Array)
+      return Unsigned_32;
+   pragma Inline (CRC32);
+   --  Compute CRC32, it could be necessary for make gzip format
+
+   procedure CRC32
+     (CRC  : in out Unsigned_32;
+      Data : in     Ada.Streams.Stream_Element_Array);
+   pragma Inline (CRC32);
+   --  Compute CRC32, it could be necessary for make gzip format
+
+   -------------------------------------------------
+   --  Below is more complex low level routines.  --
+   -------------------------------------------------
+
+   procedure Translate
+     (Filter    : in out Filter_Type;
+      In_Data   : in     Ada.Streams.Stream_Element_Array;
+      In_Last   :    out Ada.Streams.Stream_Element_Offset;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   --  Compress/decompress the In_Data buffer and place the result into
+   --  Out_Data. In_Last is the index of last element from In_Data accepted by
+   --  the Filter. Out_Last is the last element of the received data from
+   --  Filter. To tell the filter that incoming data are complete put the
+   --  Flush parameter to Finish.
+
+   function Stream_End (Filter : in Filter_Type) return Boolean;
+   pragma Inline (Stream_End);
+   --  Return the true when the stream is complete.
+
+   procedure Flush
+     (Filter    : in out Filter_Type;
+      Out_Data  :    out Ada.Streams.Stream_Element_Array;
+      Out_Last  :    out Ada.Streams.Stream_Element_Offset;
+      Flush     : in     Flush_Mode);
+   pragma Inline (Flush);
+   --  Flushing the data from the compressor.
+
+   generic
+      with procedure Write
+        (Item : in Ada.Streams.Stream_Element_Array);
+      --  User should provide this routine for accept
+      --  compressed/decompressed data.
+
+      Buffer_Size : in Ada.Streams.Stream_Element_Offset
+         := Default_Buffer_Size;
+      --  Buffer size for Write user routine.
+
+   procedure Write
+     (Filter  : in out Filter_Type;
+      Item    : in     Ada.Streams.Stream_Element_Array;
+      Flush   : in     Flush_Mode := No_Flush);
+   --  Compress/Decompress data from Item to the generic parameter procedure
+   --  Write. Output buffer size could be set in Buffer_Size generic parameter.
+
+   generic
+      with procedure Read
+        (Item : out Ada.Streams.Stream_Element_Array;
+         Last : out Ada.Streams.Stream_Element_Offset);
+      --  User should provide data for compression/decompression
+      --  thru this routine.
+
+      Buffer : in out Ada.Streams.Stream_Element_Array;
+      --  Buffer for keep remaining data from the previous
+      --  back read.
+
+      Rest_First, Rest_Last : in out Ada.Streams.Stream_Element_Offset;
+      --  Rest_First have to be initialized to Buffer'Last + 1
+      --  Rest_Last have to be initialized to Buffer'Last
+      --  before usage.
+
+      Allow_Read_Some : in Boolean := False;
+      --  Is it allowed to return Last < Item'Last before end of data.
+
+   procedure Read
+     (Filter : in out Filter_Type;
+      Item   :    out Ada.Streams.Stream_Element_Array;
+      Last   :    out Ada.Streams.Stream_Element_Offset;
+      Flush  : in     Flush_Mode := No_Flush);
+   --  Compress/Decompress data from generic parameter procedure Read to the
+   --  Item. User should provide Buffer and initialized Rest_First, Rest_Last
+   --  indicators. If Allow_Read_Some is True, Read routines could return
+   --  Last < Item'Last only at end of stream.
+
+private
+
+   use Ada.Streams;
+
+   pragma Assert (Ada.Streams.Stream_Element'Size    =    8);
+   pragma Assert (Ada.Streams.Stream_Element'Modulus = 2**8);
+
+   type Flush_Mode is new Integer range 0 .. 5;
+
+   type Compression_Method is new Integer range 8 .. 8;
+
+   type Strategy_Type is new Integer range 0 .. 3;
+
+   No_Flush      : constant Flush_Mode := 0;
+   Partial_Flush : constant Flush_Mode := 1;
+   Sync_Flush    : constant Flush_Mode := 2;
+   Full_Flush    : constant Flush_Mode := 3;
+   Finish        : constant Flush_Mode := 4;
+   Block_Flush   : constant Flush_Mode := 5;
+
+   Filtered         : constant Strategy_Type := 1;
+   Huffman_Only     : constant Strategy_Type := 2;
+   RLE              : constant Strategy_Type := 3;
+   Default_Strategy : constant Strategy_Type := 0;
+
+   Deflated : constant Compression_Method := 8;
+
+   type Z_Stream;
+
+   type Z_Stream_Access is access all Z_Stream;
+
+   type Filter_Type is tagged limited record
+      Strm        : Z_Stream_Access;
+      Compression : Boolean;
+      Stream_End  : Boolean;
+      Header      : Header_Type;
+      CRC         : Unsigned_32;
+      Offset      : Stream_Element_Offset;
+      --  Offset for gzip header/footer output.
+   end record;
+
+end ZLib;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.gpr b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.gpr
new file mode 100644
index 000000000..296b22aa9
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/ada/zlib.gpr
@@ -0,0 +1,20 @@
+project Zlib is
+
+   for Languages use ("Ada");
+   for Source_Dirs use (".");
+   for Object_Dir use ".";
+   for Main use ("test.adb", "mtest.adb", "read.adb", "buffer_demo");
+
+   package Compiler is
+      for Default_Switches ("ada") use ("-gnatwcfilopru", "-gnatVcdfimorst", "-gnatyabcefhiklmnoprst");
+   end Compiler;
+
+   package Linker is
+      for Default_Switches ("ada") use ("-lz");
+   end Linker;
+
+   package Builder is
+      for Default_Switches ("ada") use ("-s", "-gnatQ");
+   end Builder;
+
+end Zlib;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/amd64/amd64-match.S b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/amd64/amd64-match.S
new file mode 100644
index 000000000..81d4a1c94
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/amd64/amd64-match.S
@@ -0,0 +1,452 @@
+/*
+ * match.S -- optimized version of longest_match()
+ * based on the similar work by Gilles Vollant, and Brian Raiter, written 1998
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the BSD License. Use by owners of Che Guevarra
+ * parafernalia is prohibited, where possible, and highly discouraged
+ * elsewhere.
+ */
+
+#ifndef NO_UNDERLINE
+#	define	match_init	_match_init
+#	define	longest_match	_longest_match
+#endif
+
+#define	scanend		ebx
+#define	scanendw	bx
+#define	chainlenwmask	edx /* high word: current chain len low word: s->wmask */
+#define	curmatch	rsi
+#define	curmatchd	esi
+#define	windowbestlen	r8
+#define	scanalign	r9
+#define	scanalignd	r9d
+#define	window		r10
+#define	bestlen		r11
+#define	bestlend	r11d
+#define	scanstart	r12d
+#define	scanstartw	r12w
+#define scan		r13
+#define nicematch	r14d
+#define	limit		r15
+#define	limitd		r15d
+#define prev		rcx
+
+/*
+ * The 258 is a "magic number, not a parameter -- changing it
+ * breaks the hell loose
+ */
+#define	MAX_MATCH	(258)
+#define	MIN_MATCH	(3)
+#define	MIN_LOOKAHEAD	(MAX_MATCH + MIN_MATCH + 1)
+#define	MAX_MATCH_8	((MAX_MATCH + 7) & ~7)
+
+/* stack frame offsets */
+#define	LocalVarsSize	(112)
+#define _chainlenwmask	( 8-LocalVarsSize)(%rsp)
+#define _windowbestlen	(16-LocalVarsSize)(%rsp)
+#define save_r14        (24-LocalVarsSize)(%rsp)
+#define save_rsi        (32-LocalVarsSize)(%rsp)
+#define save_rbx        (40-LocalVarsSize)(%rsp)
+#define save_r12        (56-LocalVarsSize)(%rsp)
+#define save_r13        (64-LocalVarsSize)(%rsp)
+#define save_r15        (80-LocalVarsSize)(%rsp)
+
+
+.globl	match_init, longest_match
+
+/*
+ * On AMD64 the first argument of a function (in our case -- the pointer to
+ * deflate_state structure) is passed in %rdi, hence our offsets below are
+ * all off of that.
+ */
+
+/* you can check the structure offset by running
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "deflate.h"
+
+void print_depl()
+{
+deflate_state ds;
+deflate_state *s=&ds;
+printf("size pointer=%u\n",(int)sizeof(void*));
+
+printf("#define dsWSize         (%3u)(%%rdi)\n",(int)(((char*)&(s->w_size))-((char*)s)));
+printf("#define dsWMask         (%3u)(%%rdi)\n",(int)(((char*)&(s->w_mask))-((char*)s)));
+printf("#define dsWindow        (%3u)(%%rdi)\n",(int)(((char*)&(s->window))-((char*)s)));
+printf("#define dsPrev          (%3u)(%%rdi)\n",(int)(((char*)&(s->prev))-((char*)s)));
+printf("#define dsMatchLen      (%3u)(%%rdi)\n",(int)(((char*)&(s->match_length))-((char*)s)));
+printf("#define dsPrevMatch     (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_match))-((char*)s)));
+printf("#define dsStrStart      (%3u)(%%rdi)\n",(int)(((char*)&(s->strstart))-((char*)s)));
+printf("#define dsMatchStart    (%3u)(%%rdi)\n",(int)(((char*)&(s->match_start))-((char*)s)));
+printf("#define dsLookahead     (%3u)(%%rdi)\n",(int)(((char*)&(s->lookahead))-((char*)s)));
+printf("#define dsPrevLen       (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_length))-((char*)s)));
+printf("#define dsMaxChainLen   (%3u)(%%rdi)\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
+printf("#define dsGoodMatch     (%3u)(%%rdi)\n",(int)(((char*)&(s->good_match))-((char*)s)));
+printf("#define dsNiceMatch     (%3u)(%%rdi)\n",(int)(((char*)&(s->nice_match))-((char*)s)));
+}
+
+*/
+
+
+/*
+  to compile for XCode 3.2 on MacOSX x86_64
+  - run "gcc -g -c -DXCODE_MAC_X64_STRUCTURE amd64-match.S"
+ */
+
+
+#ifndef CURRENT_LINX_XCODE_MAC_X64_STRUCTURE
+#define dsWSize		( 68)(%rdi)
+#define dsWMask		( 76)(%rdi)
+#define dsWindow	( 80)(%rdi)
+#define dsPrev		( 96)(%rdi)
+#define dsMatchLen	(144)(%rdi)
+#define dsPrevMatch	(148)(%rdi)
+#define dsStrStart	(156)(%rdi)
+#define dsMatchStart	(160)(%rdi)
+#define dsLookahead	(164)(%rdi)
+#define dsPrevLen	(168)(%rdi)
+#define dsMaxChainLen	(172)(%rdi)
+#define dsGoodMatch	(188)(%rdi)
+#define dsNiceMatch	(192)(%rdi)
+
+#else 
+
+#ifndef STRUCT_OFFSET
+#	define STRUCT_OFFSET	(0)
+#endif
+
+
+#define dsWSize		( 56 + STRUCT_OFFSET)(%rdi)
+#define dsWMask		( 64 + STRUCT_OFFSET)(%rdi)
+#define dsWindow	( 72 + STRUCT_OFFSET)(%rdi)
+#define dsPrev		( 88 + STRUCT_OFFSET)(%rdi)
+#define dsMatchLen	(136 + STRUCT_OFFSET)(%rdi)
+#define dsPrevMatch	(140 + STRUCT_OFFSET)(%rdi)
+#define dsStrStart	(148 + STRUCT_OFFSET)(%rdi)
+#define dsMatchStart	(152 + STRUCT_OFFSET)(%rdi)
+#define dsLookahead	(156 + STRUCT_OFFSET)(%rdi)
+#define dsPrevLen	(160 + STRUCT_OFFSET)(%rdi)
+#define dsMaxChainLen	(164 + STRUCT_OFFSET)(%rdi)
+#define dsGoodMatch	(180 + STRUCT_OFFSET)(%rdi)
+#define dsNiceMatch	(184 + STRUCT_OFFSET)(%rdi)
+
+#endif
+
+
+
+
+.text
+
+/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
+
+longest_match:
+/*
+ * Retrieve the function arguments. %curmatch will hold cur_match
+ * throughout the entire function (passed via rsi on amd64).
+ * rdi will hold the pointer to the deflate_state (first arg on amd64)
+ */
+		mov     %rsi, save_rsi
+		mov     %rbx, save_rbx
+		mov	%r12, save_r12
+		mov     %r13, save_r13
+		mov     %r14, save_r14
+		mov     %r15, save_r15
+
+/* uInt wmask = s->w_mask;						*/
+/* unsigned chain_length = s->max_chain_length;				*/
+/* if (s->prev_length >= s->good_match) {				*/
+/*     chain_length >>= 2;						*/
+/* }									*/
+
+		movl	dsPrevLen, %eax
+		movl	dsGoodMatch, %ebx
+		cmpl	%ebx, %eax
+		movl	dsWMask, %eax
+		movl	dsMaxChainLen, %chainlenwmask
+		jl	LastMatchGood
+		shrl	$2, %chainlenwmask
+LastMatchGood:
+
+/* chainlen is decremented once beforehand so that the function can	*/
+/* use the sign flag instead of the zero flag for the exit test.	*/
+/* It is then shifted into the high word, to make room for the wmask	*/
+/* value, which it will always accompany.				*/
+
+		decl	%chainlenwmask
+		shll	$16, %chainlenwmask
+		orl	%eax, %chainlenwmask
+
+/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;	*/
+
+		movl	dsNiceMatch, %eax
+		movl	dsLookahead, %ebx
+		cmpl	%eax, %ebx
+		jl	LookaheadLess
+		movl	%eax, %ebx
+LookaheadLess:	movl	%ebx, %nicematch
+
+/* register Bytef *scan = s->window + s->strstart;			*/
+
+		mov	dsWindow, %window
+		movl	dsStrStart, %limitd
+		lea	(%limit, %window), %scan
+
+/* Determine how many bytes the scan ptr is off from being		*/
+/* dword-aligned.							*/
+
+		mov	%scan, %scanalign
+		negl	%scanalignd
+		andl	$3, %scanalignd
+
+/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ?			*/
+/*     s->strstart - (IPos)MAX_DIST(s) : NIL;				*/
+
+		movl	dsWSize, %eax
+		subl	$MIN_LOOKAHEAD, %eax
+		xorl	%ecx, %ecx
+		subl	%eax, %limitd
+		cmovng	%ecx, %limitd
+
+/* int best_len = s->prev_length;					*/
+
+		movl	dsPrevLen, %bestlend
+
+/* Store the sum of s->window + best_len in %windowbestlen locally, and in memory.	*/
+
+		lea	(%window, %bestlen), %windowbestlen
+		mov	%windowbestlen, _windowbestlen
+
+/* register ush scan_start = *(ushf*)scan;				*/
+/* register ush scan_end   = *(ushf*)(scan+best_len-1);			*/
+/* Posf *prev = s->prev;						*/
+
+		movzwl	(%scan), %scanstart
+		movzwl	-1(%scan, %bestlen), %scanend
+		mov	dsPrev, %prev
+
+/* Jump into the main loop.						*/
+
+		movl	%chainlenwmask, _chainlenwmask
+		jmp	LoopEntry
+
+.balign 16
+
+/* do {
+ *     match = s->window + cur_match;
+ *     if (*(ushf*)(match+best_len-1) != scan_end ||
+ *         *(ushf*)match != scan_start) continue;
+ *     [...]
+ * } while ((cur_match = prev[cur_match & wmask]) > limit
+ *          && --chain_length != 0);
+ *
+ * Here is the inner loop of the function. The function will spend the
+ * majority of its time in this loop, and majority of that time will
+ * be spent in the first ten instructions.
+ */
+LookupLoop:
+		andl	%chainlenwmask, %curmatchd
+		movzwl	(%prev, %curmatch, 2), %curmatchd
+		cmpl	%limitd, %curmatchd
+		jbe	LeaveNow
+		subl	$0x00010000, %chainlenwmask
+		js	LeaveNow
+LoopEntry:	cmpw	-1(%windowbestlen, %curmatch), %scanendw
+		jne	LookupLoop
+		cmpw	%scanstartw, (%window, %curmatch)
+		jne	LookupLoop
+
+/* Store the current value of chainlen.					*/
+		movl	%chainlenwmask, _chainlenwmask
+
+/* %scan is the string under scrutiny, and %prev to the string we	*/
+/* are hoping to match it up with. In actuality, %esi and %edi are	*/
+/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is	*/
+/* initialized to -(MAX_MATCH_8 - scanalign).				*/
+
+		mov	$(-MAX_MATCH_8), %rdx
+		lea	(%curmatch, %window), %windowbestlen
+		lea	MAX_MATCH_8(%windowbestlen, %scanalign), %windowbestlen
+		lea	MAX_MATCH_8(%scan, %scanalign), %prev
+
+/* the prefetching below makes very little difference... */
+		prefetcht1	(%windowbestlen, %rdx)
+		prefetcht1	(%prev, %rdx)
+
+/*
+ * Test the strings for equality, 8 bytes at a time. At the end,
+ * adjust %rdx so that it is offset to the exact byte that mismatched.
+ *
+ * It should be confessed that this loop usually does not represent
+ * much of the total running time. Replacing it with a more
+ * straightforward "rep cmpsb" would not drastically degrade
+ * performance -- unrolling it, for example, makes no difference.
+ */
+
+#undef USE_SSE	/* works, but is 6-7% slower, than non-SSE... */
+
+LoopCmps:
+#ifdef USE_SSE
+		/* Preload the SSE registers */
+		movdqu	  (%windowbestlen, %rdx), %xmm1
+		movdqu	  (%prev, %rdx), %xmm2
+		pcmpeqb	%xmm2, %xmm1
+		movdqu	16(%windowbestlen, %rdx), %xmm3
+		movdqu	16(%prev, %rdx), %xmm4
+		pcmpeqb	%xmm4, %xmm3
+		movdqu	32(%windowbestlen, %rdx), %xmm5
+		movdqu	32(%prev, %rdx), %xmm6
+		pcmpeqb	%xmm6, %xmm5
+		movdqu	48(%windowbestlen, %rdx), %xmm7
+		movdqu	48(%prev, %rdx), %xmm8
+		pcmpeqb	%xmm8, %xmm7
+
+		/* Check the comparisions' results */
+		pmovmskb %xmm1, %rax
+		notw	%ax
+		bsfw	%ax, %ax
+		jnz	LeaveLoopCmps
+		
+		/* this is the only iteration of the loop with a possibility of having
+		   incremented rdx by 0x108 (each loop iteration add 16*4 = 0x40 
+		   and (0x40*4)+8=0x108 */
+		add	$8, %rdx
+		jz LenMaximum
+		add	$8, %rdx
+
+		
+		pmovmskb %xmm3, %rax
+		notw	%ax
+		bsfw	%ax, %ax
+		jnz	LeaveLoopCmps
+		
+		
+		add	$16, %rdx
+
+
+		pmovmskb %xmm5, %rax
+		notw	%ax
+		bsfw	%ax, %ax
+		jnz	LeaveLoopCmps
+		
+		add	$16, %rdx
+
+
+		pmovmskb %xmm7, %rax
+		notw	%ax
+		bsfw	%ax, %ax
+		jnz	LeaveLoopCmps
+		
+		add	$16, %rdx
+		
+		jmp	LoopCmps
+LeaveLoopCmps:	add	%rax, %rdx
+#else
+		mov	(%windowbestlen, %rdx), %rax
+		xor	(%prev, %rdx), %rax
+		jnz	LeaveLoopCmps
+		
+		mov	8(%windowbestlen, %rdx), %rax
+		xor	8(%prev, %rdx), %rax
+		jnz	LeaveLoopCmps8
+
+		mov	16(%windowbestlen, %rdx), %rax
+		xor	16(%prev, %rdx), %rax
+		jnz	LeaveLoopCmps16
+				
+		add	$24, %rdx
+		jnz	LoopCmps
+		jmp	LenMaximum
+#	if 0
+/*
+ * This three-liner is tantalizingly simple, but bsf is a slow instruction,
+ * and the complicated alternative down below is quite a bit faster. Sad...
+ */
+
+LeaveLoopCmps:	bsf	%rax, %rax /* find the first non-zero bit */
+		shrl	$3, %eax /* divide by 8 to get the byte */
+		add	%rax, %rdx
+#	else
+LeaveLoopCmps16:
+		add	$8, %rdx
+LeaveLoopCmps8:
+		add	$8, %rdx
+LeaveLoopCmps:	testl   $0xFFFFFFFF, %eax /* Check the first 4 bytes */
+		jnz     Check16
+		add     $4, %rdx
+		shr     $32, %rax
+Check16:        testw   $0xFFFF, %ax
+		jnz     LenLower
+		add	$2, %rdx
+		shrl	$16, %eax
+LenLower:	subb	$1, %al
+		adc	$0, %rdx
+#	endif
+#endif
+
+/* Calculate the length of the match. If it is longer than MAX_MATCH,	*/
+/* then automatically accept it as the best possible match and leave.	*/
+
+		lea	(%prev, %rdx), %rax
+		sub	%scan, %rax
+		cmpl	$MAX_MATCH, %eax
+		jge	LenMaximum
+
+/* If the length of the match is not longer than the best match we	*/
+/* have so far, then forget it and return to the lookup loop.		*/
+
+		cmpl	%bestlend, %eax
+		jg	LongerMatch
+		mov	_windowbestlen, %windowbestlen
+		mov	dsPrev, %prev
+		movl	_chainlenwmask, %edx
+		jmp	LookupLoop
+
+/*         s->match_start = cur_match;					*/
+/*         best_len = len;						*/
+/*         if (len >= nice_match) break;				*/
+/*         scan_end = *(ushf*)(scan+best_len-1);			*/
+
+LongerMatch:
+		movl	%eax, %bestlend
+		movl	%curmatchd, dsMatchStart
+		cmpl	%nicematch, %eax
+		jge	LeaveNow
+
+		lea	(%window, %bestlen), %windowbestlen
+		mov	%windowbestlen, _windowbestlen
+
+		movzwl	-1(%scan, %rax), %scanend
+		mov	dsPrev, %prev
+		movl	_chainlenwmask, %chainlenwmask
+		jmp	LookupLoop
+
+/* Accept the current string, with the maximum possible length.		*/
+
+LenMaximum:
+		movl	$MAX_MATCH, %bestlend
+		movl	%curmatchd, dsMatchStart
+
+/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len;		*/
+/* return s->lookahead;							*/
+
+LeaveNow:
+		movl	dsLookahead, %eax
+		cmpl	%eax, %bestlend
+		cmovngl	%bestlend, %eax
+LookaheadRet:
+
+/* Restore the registers and return from whence we came.			*/
+
+	mov	save_rsi, %rsi
+	mov	save_rbx, %rbx
+	mov	save_r12, %r12
+	mov	save_r13, %r13
+	mov	save_r14, %r14
+	mov	save_r15, %r15
+
+	ret
+
+match_init:	ret
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/asm686/README.686 b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/asm686/README.686
new file mode 100644
index 000000000..a0bf3bea4
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/asm686/README.686
@@ -0,0 +1,51 @@
+This is a patched version of zlib, modified to use
+Pentium-Pro-optimized assembly code in the deflation algorithm. The
+files changed/added by this patch are:
+
+README.686
+match.S
+
+The speedup that this patch provides varies, depending on whether the
+compiler used to build the original version of zlib falls afoul of the
+PPro's speed traps. My own tests show a speedup of around 10-20% at
+the default compression level, and 20-30% using -9, against a version
+compiled using gcc 2.7.2.3. Your mileage may vary.
+
+Note that this code has been tailored for the PPro/PII in particular,
+and will not perform particuarly well on a Pentium.
+
+If you are using an assembler other than GNU as, you will have to
+translate match.S to use your assembler's syntax. (Have fun.)
+
+Brian Raiter
+breadbox@muppetlabs.com
+April, 1998
+
+
+Added for zlib 1.1.3:
+
+The patches come from
+http://www.muppetlabs.com/~breadbox/software/assembly.html
+
+To compile zlib with this asm file, copy match.S to the zlib directory
+then do:
+
+CFLAGS="-O3 -DASMV" ./configure
+make OBJA=match.o
+
+
+Update:
+
+I've been ignoring these assembly routines for years, believing that
+gcc's generated code had caught up with it sometime around gcc 2.95
+and the major rearchitecting of the Pentium 4. However, I recently
+learned that, despite what I believed, this code still has some life
+in it. On the Pentium 4 and AMD64 chips, it continues to run about 8%
+faster than the code produced by gcc 4.1.
+
+In acknowledgement of its continuing usefulness, I've altered the
+license to match that of the rest of zlib. Share and Enjoy!
+
+Brian Raiter
+breadbox@muppetlabs.com
+April, 2007
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/asm686/match.S b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/asm686/match.S
new file mode 100644
index 000000000..fa4210927
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/asm686/match.S
@@ -0,0 +1,357 @@
+/* match.S -- x86 assembly version of the zlib longest_match() function.
+ * Optimized for the Intel 686 chips (PPro and later).
+ *
+ * Copyright (C) 1998, 2007 Brian Raiter <breadbox@muppetlabs.com>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the author be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+#ifndef NO_UNDERLINE
+#define	match_init	_match_init
+#define	longest_match	_longest_match
+#endif
+
+#define	MAX_MATCH	(258)
+#define	MIN_MATCH	(3)
+#define	MIN_LOOKAHEAD	(MAX_MATCH + MIN_MATCH + 1)
+#define	MAX_MATCH_8	((MAX_MATCH + 7) & ~7)
+
+/* stack frame offsets */
+
+#define	chainlenwmask		0	/* high word: current chain len	*/
+					/* low word: s->wmask		*/
+#define	window			4	/* local copy of s->window	*/
+#define	windowbestlen		8	/* s->window + bestlen		*/
+#define	scanstart		16	/* first two bytes of string	*/
+#define	scanend			12	/* last two bytes of string	*/
+#define	scanalign		20	/* dword-misalignment of string	*/
+#define	nicematch		24	/* a good enough match size	*/
+#define	bestlen			28	/* size of best match so far	*/
+#define	scan			32	/* ptr to string wanting match	*/
+
+#define	LocalVarsSize		(36)
+/*	saved ebx		36 */
+/*	saved edi		40 */
+/*	saved esi		44 */
+/*	saved ebp		48 */
+/*	return address		52 */
+#define	deflatestate		56	/* the function arguments	*/
+#define	curmatch		60
+
+/* All the +zlib1222add offsets are due to the addition of fields
+ *  in zlib in the deflate_state structure since the asm code was first written
+ * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+ * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+ * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+ */
+
+#define zlib1222add		(8)
+
+#define	dsWSize			(36+zlib1222add)
+#define	dsWMask			(44+zlib1222add)
+#define	dsWindow		(48+zlib1222add)
+#define	dsPrev			(56+zlib1222add)
+#define	dsMatchLen		(88+zlib1222add)
+#define	dsPrevMatch		(92+zlib1222add)
+#define	dsStrStart		(100+zlib1222add)
+#define	dsMatchStart		(104+zlib1222add)
+#define	dsLookahead		(108+zlib1222add)
+#define	dsPrevLen		(112+zlib1222add)
+#define	dsMaxChainLen		(116+zlib1222add)
+#define	dsGoodMatch		(132+zlib1222add)
+#define	dsNiceMatch		(136+zlib1222add)
+
+
+.file "match.S"
+
+.globl	match_init, longest_match
+
+.text
+
+/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
+.cfi_sections	.debug_frame
+
+longest_match:
+
+.cfi_startproc
+/* Save registers that the compiler may be using, and adjust %esp to	*/
+/* make room for our stack frame.					*/
+
+		pushl	%ebp
+		.cfi_def_cfa_offset 8
+		.cfi_offset ebp, -8
+		pushl	%edi
+		.cfi_def_cfa_offset 12
+		pushl	%esi
+		.cfi_def_cfa_offset 16
+		pushl	%ebx
+		.cfi_def_cfa_offset 20
+		subl	$LocalVarsSize, %esp
+		.cfi_def_cfa_offset LocalVarsSize+20
+
+/* Retrieve the function arguments. %ecx will hold cur_match		*/
+/* throughout the entire function. %edx will hold the pointer to the	*/
+/* deflate_state structure during the function's setup (before		*/
+/* entering the main loop).						*/
+
+		movl	deflatestate(%esp), %edx
+		movl	curmatch(%esp), %ecx
+
+/* uInt wmask = s->w_mask;						*/
+/* unsigned chain_length = s->max_chain_length;				*/
+/* if (s->prev_length >= s->good_match) {				*/
+/*     chain_length >>= 2;						*/
+/* }									*/
+ 
+		movl	dsPrevLen(%edx), %eax
+		movl	dsGoodMatch(%edx), %ebx
+		cmpl	%ebx, %eax
+		movl	dsWMask(%edx), %eax
+		movl	dsMaxChainLen(%edx), %ebx
+		jl	LastMatchGood
+		shrl	$2, %ebx
+LastMatchGood:
+
+/* chainlen is decremented once beforehand so that the function can	*/
+/* use the sign flag instead of the zero flag for the exit test.	*/
+/* It is then shifted into the high word, to make room for the wmask	*/
+/* value, which it will always accompany.				*/
+
+		decl	%ebx
+		shll	$16, %ebx
+		orl	%eax, %ebx
+		movl	%ebx, chainlenwmask(%esp)
+
+/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;	*/
+
+		movl	dsNiceMatch(%edx), %eax
+		movl	dsLookahead(%edx), %ebx
+		cmpl	%eax, %ebx
+		jl	LookaheadLess
+		movl	%eax, %ebx
+LookaheadLess:	movl	%ebx, nicematch(%esp)
+
+/* register Bytef *scan = s->window + s->strstart;			*/
+
+		movl	dsWindow(%edx), %esi
+		movl	%esi, window(%esp)
+		movl	dsStrStart(%edx), %ebp
+		lea	(%esi,%ebp), %edi
+		movl	%edi, scan(%esp)
+
+/* Determine how many bytes the scan ptr is off from being		*/
+/* dword-aligned.							*/
+
+		movl	%edi, %eax
+		negl	%eax
+		andl	$3, %eax
+		movl	%eax, scanalign(%esp)
+
+/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ?			*/
+/*     s->strstart - (IPos)MAX_DIST(s) : NIL;				*/
+
+		movl	dsWSize(%edx), %eax
+		subl	$MIN_LOOKAHEAD, %eax
+		subl	%eax, %ebp
+		jg	LimitPositive
+		xorl	%ebp, %ebp
+LimitPositive:
+
+/* int best_len = s->prev_length;					*/
+
+		movl	dsPrevLen(%edx), %eax
+		movl	%eax, bestlen(%esp)
+
+/* Store the sum of s->window + best_len in %esi locally, and in %esi.	*/
+
+		addl	%eax, %esi
+		movl	%esi, windowbestlen(%esp)
+
+/* register ush scan_start = *(ushf*)scan;				*/
+/* register ush scan_end   = *(ushf*)(scan+best_len-1);			*/
+/* Posf *prev = s->prev;						*/
+
+		movzwl	(%edi), %ebx
+		movl	%ebx, scanstart(%esp)
+		movzwl	-1(%edi,%eax), %ebx
+		movl	%ebx, scanend(%esp)
+		movl	dsPrev(%edx), %edi
+
+/* Jump into the main loop.						*/
+
+		movl	chainlenwmask(%esp), %edx
+		jmp	LoopEntry
+
+.balign 16
+
+/* do {
+ *     match = s->window + cur_match;
+ *     if (*(ushf*)(match+best_len-1) != scan_end ||
+ *         *(ushf*)match != scan_start) continue;
+ *     [...]
+ * } while ((cur_match = prev[cur_match & wmask]) > limit
+ *          && --chain_length != 0);
+ *
+ * Here is the inner loop of the function. The function will spend the
+ * majority of its time in this loop, and majority of that time will
+ * be spent in the first ten instructions.
+ *
+ * Within this loop:
+ * %ebx = scanend
+ * %ecx = curmatch
+ * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+ * %esi = windowbestlen - i.e., (window + bestlen)
+ * %edi = prev
+ * %ebp = limit
+ */
+LookupLoop:
+		andl	%edx, %ecx
+		movzwl	(%edi,%ecx,2), %ecx
+		cmpl	%ebp, %ecx
+		jbe	LeaveNow
+		subl	$0x00010000, %edx
+		js	LeaveNow
+LoopEntry:	movzwl	-1(%esi,%ecx), %eax
+		cmpl	%ebx, %eax
+		jnz	LookupLoop
+		movl	window(%esp), %eax
+		movzwl	(%eax,%ecx), %eax
+		cmpl	scanstart(%esp), %eax
+		jnz	LookupLoop
+
+/* Store the current value of chainlen.					*/
+
+		movl	%edx, chainlenwmask(%esp)
+
+/* Point %edi to the string under scrutiny, and %esi to the string we	*/
+/* are hoping to match it up with. In actuality, %esi and %edi are	*/
+/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is	*/
+/* initialized to -(MAX_MATCH_8 - scanalign).				*/
+
+		movl	window(%esp), %esi
+		movl	scan(%esp), %edi
+		addl	%ecx, %esi
+		movl	scanalign(%esp), %eax
+		movl	$(-MAX_MATCH_8), %edx
+		lea	MAX_MATCH_8(%edi,%eax), %edi
+		lea	MAX_MATCH_8(%esi,%eax), %esi
+
+/* Test the strings for equality, 8 bytes at a time. At the end,
+ * adjust %edx so that it is offset to the exact byte that mismatched.
+ *
+ * We already know at this point that the first three bytes of the
+ * strings match each other, and they can be safely passed over before
+ * starting the compare loop. So what this code does is skip over 0-3
+ * bytes, as much as necessary in order to dword-align the %edi
+ * pointer. (%esi will still be misaligned three times out of four.)
+ *
+ * It should be confessed that this loop usually does not represent
+ * much of the total running time. Replacing it with a more
+ * straightforward "rep cmpsb" would not drastically degrade
+ * performance.
+ */
+LoopCmps:
+		movl	(%esi,%edx), %eax
+		xorl	(%edi,%edx), %eax
+		jnz	LeaveLoopCmps
+		movl	4(%esi,%edx), %eax
+		xorl	4(%edi,%edx), %eax
+		jnz	LeaveLoopCmps4
+		addl	$8, %edx
+		jnz	LoopCmps
+		jmp	LenMaximum
+LeaveLoopCmps4:	addl	$4, %edx
+LeaveLoopCmps:	testl	$0x0000FFFF, %eax
+		jnz	LenLower
+		addl	$2, %edx
+		shrl	$16, %eax
+LenLower:	subb	$1, %al
+		adcl	$0, %edx
+
+/* Calculate the length of the match. If it is longer than MAX_MATCH,	*/
+/* then automatically accept it as the best possible match and leave.	*/
+
+		lea	(%edi,%edx), %eax
+		movl	scan(%esp), %edi
+		subl	%edi, %eax
+		cmpl	$MAX_MATCH, %eax
+		jge	LenMaximum
+
+/* If the length of the match is not longer than the best match we	*/
+/* have so far, then forget it and return to the lookup loop.		*/
+
+		movl	deflatestate(%esp), %edx
+		movl	bestlen(%esp), %ebx
+		cmpl	%ebx, %eax
+		jg	LongerMatch
+		movl	windowbestlen(%esp), %esi
+		movl	dsPrev(%edx), %edi
+		movl	scanend(%esp), %ebx
+		movl	chainlenwmask(%esp), %edx
+		jmp	LookupLoop
+
+/*         s->match_start = cur_match;					*/
+/*         best_len = len;						*/
+/*         if (len >= nice_match) break;				*/
+/*         scan_end = *(ushf*)(scan+best_len-1);			*/
+
+LongerMatch:	movl	nicematch(%esp), %ebx
+		movl	%eax, bestlen(%esp)
+		movl	%ecx, dsMatchStart(%edx)
+		cmpl	%ebx, %eax
+		jge	LeaveNow
+		movl	window(%esp), %esi
+		addl	%eax, %esi
+		movl	%esi, windowbestlen(%esp)
+		movzwl	-1(%edi,%eax), %ebx
+		movl	dsPrev(%edx), %edi
+		movl	%ebx, scanend(%esp)
+		movl	chainlenwmask(%esp), %edx
+		jmp	LookupLoop
+
+/* Accept the current string, with the maximum possible length.		*/
+
+LenMaximum:	movl	deflatestate(%esp), %edx
+		movl	$MAX_MATCH, bestlen(%esp)
+		movl	%ecx, dsMatchStart(%edx)
+
+/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len;		*/
+/* return s->lookahead;							*/
+
+LeaveNow:
+		movl	deflatestate(%esp), %edx
+		movl	bestlen(%esp), %ebx
+		movl	dsLookahead(%edx), %eax
+		cmpl	%eax, %ebx
+		jg	LookaheadRet
+		movl	%ebx, %eax
+LookaheadRet:
+
+/* Restore the stack and return from whence we came.			*/
+
+		addl	$LocalVarsSize, %esp
+		.cfi_def_cfa_offset 20
+		popl	%ebx
+		.cfi_def_cfa_offset 16
+		popl	%esi
+		.cfi_def_cfa_offset 12
+		popl	%edi
+		.cfi_def_cfa_offset 8
+		popl	%ebp
+		.cfi_def_cfa_offset 4
+.cfi_endproc
+match_init:	ret
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/Makefile b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/Makefile
new file mode 100644
index 000000000..9be80bafe
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/Makefile
@@ -0,0 +1,8 @@
+blast: blast.c blast.h
+	cc -DTEST -o blast blast.c
+
+test: blast
+	blast < test.pk | cmp - test.txt
+
+clean:
+	rm -f blast blast.o
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/README
new file mode 100644
index 000000000..e3a60b3f5
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/README
@@ -0,0 +1,4 @@
+Read blast.h for purpose and usage.
+
+Mark Adler
+madler@alumni.caltech.edu
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/blast.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/blast.c
new file mode 100644
index 000000000..e6e659073
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/blast.c
@@ -0,0 +1,466 @@
+/* blast.c
+ * Copyright (C) 2003, 2012, 2013 Mark Adler
+ * For conditions of distribution and use, see copyright notice in blast.h
+ * version 1.3, 24 Aug 2013
+ *
+ * blast.c decompresses data compressed by the PKWare Compression Library.
+ * This function provides functionality similar to the explode() function of
+ * the PKWare library, hence the name "blast".
+ *
+ * This decompressor is based on the excellent format description provided by
+ * Ben Rudiak-Gould in comp.compression on August 13, 2001.  Interestingly, the
+ * example Ben provided in the post is incorrect.  The distance 110001 should
+ * instead be 111000.  When corrected, the example byte stream becomes:
+ *
+ *    00 04 82 24 25 8f 80 7f
+ *
+ * which decompresses to "AIAIAIAIAIAIA" (without the quotes).
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  12 Feb 2003     - First version
+ * 1.1  16 Feb 2003     - Fixed distance check for > 4 GB uncompressed data
+ * 1.2  24 Oct 2012     - Add note about using binary mode in stdio
+ *                      - Fix comparisons of differently signed integers
+ * 1.3  24 Aug 2013     - Return unused input from blast()
+ *                      - Fix test code to correctly report unused input
+ *                      - Enable the provision of initial input to blast()
+ */
+
+#include <stddef.h>             /* for NULL */
+#include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
+#include "blast.h"              /* prototype for blast() */
+
+#define local static            /* for local function definitions */
+#define MAXBITS 13              /* maximum code length */
+#define MAXWIN 4096             /* maximum window size */
+
+/* input and output state */
+struct state {
+    /* input state */
+    blast_in infun;             /* input function provided by user */
+    void *inhow;                /* opaque information passed to infun() */
+    unsigned char *in;          /* next input location */
+    unsigned left;              /* available input at in */
+    int bitbuf;                 /* bit buffer */
+    int bitcnt;                 /* number of bits in bit buffer */
+
+    /* input limit error return state for bits() and decode() */
+    jmp_buf env;
+
+    /* output state */
+    blast_out outfun;           /* output function provided by user */
+    void *outhow;               /* opaque information passed to outfun() */
+    unsigned next;              /* index of next write location in out[] */
+    int first;                  /* true to check distances (for first 4K) */
+    unsigned char out[MAXWIN];  /* output buffer and sliding window */
+};
+
+/*
+ * Return need bits from the input stream.  This always leaves less than
+ * eight bits in the buffer.  bits() works properly for need == 0.
+ *
+ * Format notes:
+ *
+ * - Bits are stored in bytes from the least significant bit to the most
+ *   significant bit.  Therefore bits are dropped from the bottom of the bit
+ *   buffer, using shift right, and new bytes are appended to the top of the
+ *   bit buffer, using shift left.
+ */
+local int bits(struct state *s, int need)
+{
+    int val;            /* bit accumulator */
+
+    /* load at least need bits into val */
+    val = s->bitbuf;
+    while (s->bitcnt < need) {
+        if (s->left == 0) {
+            s->left = s->infun(s->inhow, &(s->in));
+            if (s->left == 0) longjmp(s->env, 1);       /* out of input */
+        }
+        val |= (int)(*(s->in)++) << s->bitcnt;          /* load eight bits */
+        s->left--;
+        s->bitcnt += 8;
+    }
+
+    /* drop need bits and update buffer, always zero to seven bits left */
+    s->bitbuf = val >> need;
+    s->bitcnt -= need;
+
+    /* return need bits, zeroing the bits above that */
+    return val & ((1 << need) - 1);
+}
+
+/*
+ * Huffman code decoding tables.  count[1..MAXBITS] is the number of symbols of
+ * each length, which for a canonical code are stepped through in order.
+ * symbol[] are the symbol values in canonical order, where the number of
+ * entries is the sum of the counts in count[].  The decoding process can be
+ * seen in the function decode() below.
+ */
+struct huffman {
+    short *count;       /* number of symbols of each length */
+    short *symbol;      /* canonically ordered symbols */
+};
+
+/*
+ * Decode a code from the stream s using huffman table h.  Return the symbol or
+ * a negative value if there is an error.  If all of the lengths are zero, i.e.
+ * an empty code, or if the code is incomplete and an invalid code is received,
+ * then -9 is returned after reading MAXBITS bits.
+ *
+ * Format notes:
+ *
+ * - The codes as stored in the compressed data are bit-reversed relative to
+ *   a simple integer ordering of codes of the same lengths.  Hence below the
+ *   bits are pulled from the compressed data one at a time and used to
+ *   build the code value reversed from what is in the stream in order to
+ *   permit simple integer comparisons for decoding.
+ *
+ * - The first code for the shortest length is all ones.  Subsequent codes of
+ *   the same length are simply integer decrements of the previous code.  When
+ *   moving up a length, a one bit is appended to the code.  For a complete
+ *   code, the last code of the longest length will be all zeros.  To support
+ *   this ordering, the bits pulled during decoding are inverted to apply the
+ *   more "natural" ordering starting with all zeros and incrementing.
+ */
+local int decode(struct state *s, struct huffman *h)
+{
+    int len;            /* current number of bits in code */
+    int code;           /* len bits being decoded */
+    int first;          /* first code of length len */
+    int count;          /* number of codes of length len */
+    int index;          /* index of first code of length len in symbol table */
+    int bitbuf;         /* bits from stream */
+    int left;           /* bits left in next or left to process */
+    short *next;        /* next number of codes */
+
+    bitbuf = s->bitbuf;
+    left = s->bitcnt;
+    code = first = index = 0;
+    len = 1;
+    next = h->count + 1;
+    while (1) {
+        while (left--) {
+            code |= (bitbuf & 1) ^ 1;   /* invert code */
+            bitbuf >>= 1;
+            count = *next++;
+            if (code < first + count) { /* if length len, return symbol */
+                s->bitbuf = bitbuf;
+                s->bitcnt = (s->bitcnt - len) & 7;
+                return h->symbol[index + (code - first)];
+            }
+            index += count;             /* else update for next length */
+            first += count;
+            first <<= 1;
+            code <<= 1;
+            len++;
+        }
+        left = (MAXBITS+1) - len;
+        if (left == 0) break;
+        if (s->left == 0) {
+            s->left = s->infun(s->inhow, &(s->in));
+            if (s->left == 0) longjmp(s->env, 1);       /* out of input */
+        }
+        bitbuf = *(s->in)++;
+        s->left--;
+        if (left > 8) left = 8;
+    }
+    return -9;                          /* ran out of codes */
+}
+
+/*
+ * Given a list of repeated code lengths rep[0..n-1], where each byte is a
+ * count (high four bits + 1) and a code length (low four bits), generate the
+ * list of code lengths.  This compaction reduces the size of the object code.
+ * Then given the list of code lengths length[0..n-1] representing a canonical
+ * Huffman code for n symbols, construct the tables required to decode those
+ * codes.  Those tables are the number of codes of each length, and the symbols
+ * sorted by length, retaining their original order within each length.  The
+ * return value is zero for a complete code set, negative for an over-
+ * subscribed code set, and positive for an incomplete code set.  The tables
+ * can be used if the return value is zero or positive, but they cannot be used
+ * if the return value is negative.  If the return value is zero, it is not
+ * possible for decode() using that table to return an error--any stream of
+ * enough bits will resolve to a symbol.  If the return value is positive, then
+ * it is possible for decode() using that table to return an error for received
+ * codes past the end of the incomplete lengths.
+ */
+local int construct(struct huffman *h, const unsigned char *rep, int n)
+{
+    int symbol;         /* current symbol when stepping through length[] */
+    int len;            /* current length when stepping through h->count[] */
+    int left;           /* number of possible codes left of current length */
+    short offs[MAXBITS+1];      /* offsets in symbol table for each length */
+    short length[256];  /* code lengths */
+
+    /* convert compact repeat counts into symbol bit length list */
+    symbol = 0;
+    do {
+        len = *rep++;
+        left = (len >> 4) + 1;
+        len &= 15;
+        do {
+            length[symbol++] = len;
+        } while (--left);
+    } while (--n);
+    n = symbol;
+
+    /* count number of codes of each length */
+    for (len = 0; len <= MAXBITS; len++)
+        h->count[len] = 0;
+    for (symbol = 0; symbol < n; symbol++)
+        (h->count[length[symbol]])++;   /* assumes lengths are within bounds */
+    if (h->count[0] == n)               /* no codes! */
+        return 0;                       /* complete, but decode() will fail */
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;                           /* one possible code of zero length */
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;                     /* one more bit, double codes left */
+        left -= h->count[len];          /* deduct count from possible codes */
+        if (left < 0) return left;      /* over-subscribed--return negative */
+    }                                   /* left > 0 means incomplete */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + h->count[len];
+
+    /*
+     * put symbols in table sorted by length, by symbol order within each
+     * length
+     */
+    for (symbol = 0; symbol < n; symbol++)
+        if (length[symbol] != 0)
+            h->symbol[offs[length[symbol]]++] = symbol;
+
+    /* return zero for complete set, positive for incomplete set */
+    return left;
+}
+
+/*
+ * Decode PKWare Compression Library stream.
+ *
+ * Format notes:
+ *
+ * - First byte is 0 if literals are uncoded or 1 if they are coded.  Second
+ *   byte is 4, 5, or 6 for the number of extra bits in the distance code.
+ *   This is the base-2 logarithm of the dictionary size minus six.
+ *
+ * - Compressed data is a combination of literals and length/distance pairs
+ *   terminated by an end code.  Literals are either Huffman coded or
+ *   uncoded bytes.  A length/distance pair is a coded length followed by a
+ *   coded distance to represent a string that occurs earlier in the
+ *   uncompressed data that occurs again at the current location.
+ *
+ * - A bit preceding a literal or length/distance pair indicates which comes
+ *   next, 0 for literals, 1 for length/distance.
+ *
+ * - If literals are uncoded, then the next eight bits are the literal, in the
+ *   normal bit order in the stream, i.e. no bit-reversal is needed. Similarly,
+ *   no bit reversal is needed for either the length extra bits or the distance
+ *   extra bits.
+ *
+ * - Literal bytes are simply written to the output.  A length/distance pair is
+ *   an instruction to copy previously uncompressed bytes to the output.  The
+ *   copy is from distance bytes back in the output stream, copying for length
+ *   bytes.
+ *
+ * - Distances pointing before the beginning of the output data are not
+ *   permitted.
+ *
+ * - Overlapped copies, where the length is greater than the distance, are
+ *   allowed and common.  For example, a distance of one and a length of 518
+ *   simply copies the last byte 518 times.  A distance of four and a length of
+ *   twelve copies the last four bytes three times.  A simple forward copy
+ *   ignoring whether the length is greater than the distance or not implements
+ *   this correctly.
+ */
+local int decomp(struct state *s)
+{
+    int lit;            /* true if literals are coded */
+    int dict;           /* log2(dictionary size) - 6 */
+    int symbol;         /* decoded symbol, extra bits for distance */
+    int len;            /* length for copy */
+    unsigned dist;      /* distance for copy */
+    int copy;           /* copy counter */
+    unsigned char *from, *to;   /* copy pointers */
+    static int virgin = 1;                              /* build tables once */
+    static short litcnt[MAXBITS+1], litsym[256];        /* litcode memory */
+    static short lencnt[MAXBITS+1], lensym[16];         /* lencode memory */
+    static short distcnt[MAXBITS+1], distsym[64];       /* distcode memory */
+    static struct huffman litcode = {litcnt, litsym};   /* length code */
+    static struct huffman lencode = {lencnt, lensym};   /* length code */
+    static struct huffman distcode = {distcnt, distsym};/* distance code */
+        /* bit lengths of literal codes */
+    static const unsigned char litlen[] = {
+        11, 124, 8, 7, 28, 7, 188, 13, 76, 4, 10, 8, 12, 10, 12, 10, 8, 23, 8,
+        9, 7, 6, 7, 8, 7, 6, 55, 8, 23, 24, 12, 11, 7, 9, 11, 12, 6, 7, 22, 5,
+        7, 24, 6, 11, 9, 6, 7, 22, 7, 11, 38, 7, 9, 8, 25, 11, 8, 11, 9, 12,
+        8, 12, 5, 38, 5, 38, 5, 11, 7, 5, 6, 21, 6, 10, 53, 8, 7, 24, 10, 27,
+        44, 253, 253, 253, 252, 252, 252, 13, 12, 45, 12, 45, 12, 61, 12, 45,
+        44, 173};
+        /* bit lengths of length codes 0..15 */
+    static const unsigned char lenlen[] = {2, 35, 36, 53, 38, 23};
+        /* bit lengths of distance codes 0..63 */
+    static const unsigned char distlen[] = {2, 20, 53, 230, 247, 151, 248};
+    static const short base[16] = {     /* base for length codes */
+        3, 2, 4, 5, 6, 7, 8, 9, 10, 12, 16, 24, 40, 72, 136, 264};
+    static const char extra[16] = {     /* extra bits for length codes */
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8};
+
+    /* set up decoding tables (once--might not be thread-safe) */
+    if (virgin) {
+        construct(&litcode, litlen, sizeof(litlen));
+        construct(&lencode, lenlen, sizeof(lenlen));
+        construct(&distcode, distlen, sizeof(distlen));
+        virgin = 0;
+    }
+
+    /* read header */
+    lit = bits(s, 8);
+    if (lit > 1) return -1;
+    dict = bits(s, 8);
+    if (dict < 4 || dict > 6) return -2;
+
+    /* decode literals and length/distance pairs */
+    do {
+        if (bits(s, 1)) {
+            /* get length */
+            symbol = decode(s, &lencode);
+            len = base[symbol] + bits(s, extra[symbol]);
+            if (len == 519) break;              /* end code */
+
+            /* get distance */
+            symbol = len == 2 ? 2 : dict;
+            dist = decode(s, &distcode) << symbol;
+            dist += bits(s, symbol);
+            dist++;
+            if (s->first && dist > s->next)
+                return -3;              /* distance too far back */
+
+            /* copy length bytes from distance bytes back */
+            do {
+                to = s->out + s->next;
+                from = to - dist;
+                copy = MAXWIN;
+                if (s->next < dist) {
+                    from += copy;
+                    copy = dist;
+                }
+                copy -= s->next;
+                if (copy > len) copy = len;
+                len -= copy;
+                s->next += copy;
+                do {
+                    *to++ = *from++;
+                } while (--copy);
+                if (s->next == MAXWIN) {
+                    if (s->outfun(s->outhow, s->out, s->next)) return 1;
+                    s->next = 0;
+                    s->first = 0;
+                }
+            } while (len != 0);
+        }
+        else {
+            /* get literal and write it */
+            symbol = lit ? decode(s, &litcode) : bits(s, 8);
+            s->out[s->next++] = symbol;
+            if (s->next == MAXWIN) {
+                if (s->outfun(s->outhow, s->out, s->next)) return 1;
+                s->next = 0;
+                s->first = 0;
+            }
+        }
+    } while (1);
+    return 0;
+}
+
+/* See comments in blast.h */
+int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
+          unsigned *left, unsigned char **in)
+{
+    struct state s;             /* input/output state */
+    int err;                    /* return value */
+
+    /* initialize input state */
+    s.infun = infun;
+    s.inhow = inhow;
+    if (left != NULL && *left) {
+        s.left = *left;
+        s.in = *in;
+    }
+    else
+        s.left = 0;
+    s.bitbuf = 0;
+    s.bitcnt = 0;
+
+    /* initialize output state */
+    s.outfun = outfun;
+    s.outhow = outhow;
+    s.next = 0;
+    s.first = 1;
+
+    /* return if bits() or decode() tries to read past available input */
+    if (setjmp(s.env) != 0)             /* if came back here via longjmp(), */
+        err = 2;                        /*  then skip decomp(), return error */
+    else
+        err = decomp(&s);               /* decompress */
+
+    /* return unused input */
+    if (left != NULL)
+        *left = s.left;
+    if (in != NULL)
+        *in = s.left ? s.in : NULL;
+
+    /* write any leftover output and update the error code if needed */
+    if (err != 1 && s.next && s.outfun(s.outhow, s.out, s.next) && err == 0)
+        err = 1;
+    return err;
+}
+
+#ifdef TEST
+/* Example of how to use blast() */
+#include <stdio.h>
+#include <stdlib.h>
+
+#define CHUNK 16384
+
+local unsigned inf(void *how, unsigned char **buf)
+{
+    static unsigned char hold[CHUNK];
+
+    *buf = hold;
+    return fread(hold, 1, CHUNK, (FILE *)how);
+}
+
+local int outf(void *how, unsigned char *buf, unsigned len)
+{
+    return fwrite(buf, 1, len, (FILE *)how) != len;
+}
+
+/* Decompress a PKWare Compression Library stream from stdin to stdout */
+int main(void)
+{
+    int ret;
+    unsigned left;
+
+    /* decompress to stdout */
+    left = 0;
+    ret = blast(inf, stdin, outf, stdout, &left, NULL);
+    if (ret != 0)
+        fprintf(stderr, "blast error: %d\n", ret);
+
+    /* count any leftover bytes */
+    while (getchar() != EOF)
+        left++;
+    if (left)
+        fprintf(stderr, "blast warning: %u unused bytes of input\n", left);
+
+    /* return blast() error code */
+    return ret;
+}
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/blast.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/blast.h
new file mode 100644
index 000000000..6cf65eda1
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/blast.h
@@ -0,0 +1,83 @@
+/* blast.h -- interface for blast.c
+  Copyright (C) 2003, 2012, 2013 Mark Adler
+  version 1.3, 24 Aug 2013
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+
+/*
+ * blast() decompresses the PKWare Data Compression Library (DCL) compressed
+ * format.  It provides the same functionality as the explode() function in
+ * that library.  (Note: PKWare overused the "implode" verb, and the format
+ * used by their library implode() function is completely different and
+ * incompatible with the implode compression method supported by PKZIP.)
+ *
+ * The binary mode for stdio functions should be used to assure that the
+ * compressed data is not corrupted when read or written.  For example:
+ * fopen(..., "rb") and fopen(..., "wb").
+ */
+
+
+typedef unsigned (*blast_in)(void *how, unsigned char **buf);
+typedef int (*blast_out)(void *how, unsigned char *buf, unsigned len);
+/* Definitions for input/output functions passed to blast().  See below for
+ * what the provided functions need to do.
+ */
+
+
+int blast(blast_in infun, void *inhow, blast_out outfun, void *outhow,
+          unsigned *left, unsigned char **in);
+/* Decompress input to output using the provided infun() and outfun() calls.
+ * On success, the return value of blast() is zero.  If there is an error in
+ * the source data, i.e. it is not in the proper format, then a negative value
+ * is returned.  If there is not enough input available or there is not enough
+ * output space, then a positive error is returned.
+ *
+ * The input function is invoked: len = infun(how, &buf), where buf is set by
+ * infun() to point to the input buffer, and infun() returns the number of
+ * available bytes there.  If infun() returns zero, then blast() returns with
+ * an input error.  (blast() only asks for input if it needs it.)  inhow is for
+ * use by the application to pass an input descriptor to infun(), if desired.
+ *
+ * If left and in are not NULL and *left is not zero when blast() is called,
+ * then the *left bytes are *in are consumed for input before infun() is used.
+ *
+ * The output function is invoked: err = outfun(how, buf, len), where the bytes
+ * to be written are buf[0..len-1].  If err is not zero, then blast() returns
+ * with an output error.  outfun() is always called with len <= 4096.  outhow
+ * is for use by the application to pass an output descriptor to outfun(), if
+ * desired.
+ *
+ * If there is any unused input, *left is set to the number of bytes that were
+ * read and *in points to them.  Otherwise *left is set to zero and *in is set
+ * to NULL.  If left or in are NULL, then they are not set.
+ *
+ * The return codes are:
+ *
+ *   2:  ran out of input before completing decompression
+ *   1:  output error before completing decompression
+ *   0:  successful decompression
+ *  -1:  literal flag not zero or one
+ *  -2:  dictionary size not in 4..6
+ *  -3:  distance is too far back
+ *
+ * At the bottom of blast.c is an example program that uses blast() that can be
+ * compiled to produce a command-line decompression filter by defining TEST.
+ */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/test.pk b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/test.pk
new file mode 100644
index 000000000..be10b2bbb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/test.pk
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/test.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/test.txt
new file mode 100644
index 000000000..bfdf1c5dc
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/blast/test.txt
@@ -0,0 +1 @@
+AIAIAIAIAIAIA
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/ZLib.pas b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/ZLib.pas
new file mode 100644
index 000000000..060e19911
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/ZLib.pas
@@ -0,0 +1,557 @@
+{*******************************************************}
+{                                                       }
+{       Borland Delphi Supplemental Components          }
+{       ZLIB Data Compression Interface Unit            }
+{                                                       }
+{       Copyright (c) 1997,99 Borland Corporation       }
+{                                                       }
+{*******************************************************}
+
+{ Updated for zlib 1.2.x by Cosmin Truta <cosmint@cs.ubbcluj.ro> }
+
+unit ZLib;
+
+interface
+
+uses SysUtils, Classes;
+
+type
+  TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
+  TFree = procedure (AppData, Block: Pointer); cdecl;
+
+  // Internal structure.  Ignore.
+  TZStreamRec = packed record
+    next_in: PChar;       // next input byte
+    avail_in: Integer;    // number of bytes available at next_in
+    total_in: Longint;    // total nb of input bytes read so far
+
+    next_out: PChar;      // next output byte should be put here
+    avail_out: Integer;   // remaining free space at next_out
+    total_out: Longint;   // total nb of bytes output so far
+
+    msg: PChar;           // last error message, NULL if no error
+    internal: Pointer;    // not visible by applications
+
+    zalloc: TAlloc;       // used to allocate the internal state
+    zfree: TFree;         // used to free the internal state
+    AppData: Pointer;     // private data object passed to zalloc and zfree
+
+    data_type: Integer;   // best guess about the data type: ascii or binary
+    adler: Longint;       // adler32 value of the uncompressed data
+    reserved: Longint;    // reserved for future use
+  end;
+
+  // Abstract ancestor class
+  TCustomZlibStream = class(TStream)
+  private
+    FStrm: TStream;
+    FStrmPos: Integer;
+    FOnProgress: TNotifyEvent;
+    FZRec: TZStreamRec;
+    FBuffer: array [Word] of Char;
+  protected
+    procedure Progress(Sender: TObject); dynamic;
+    property OnProgress: TNotifyEvent read FOnProgress write FOnProgress;
+    constructor Create(Strm: TStream);
+  end;
+
+{ TCompressionStream compresses data on the fly as data is written to it, and
+  stores the compressed data to another stream.
+
+  TCompressionStream is write-only and strictly sequential. Reading from the
+  stream will raise an exception. Using Seek to move the stream pointer
+  will raise an exception.
+
+  Output data is cached internally, written to the output stream only when
+  the internal output buffer is full.  All pending output data is flushed
+  when the stream is destroyed.
+
+  The Position property returns the number of uncompressed bytes of
+  data that have been written to the stream so far.
+
+  CompressionRate returns the on-the-fly percentage by which the original
+  data has been compressed:  (1 - (CompressedBytes / UncompressedBytes)) * 100
+  If raw data size = 100 and compressed data size = 25, the CompressionRate
+  is 75%
+
+  The OnProgress event is called each time the output buffer is filled and
+  written to the output stream.  This is useful for updating a progress
+  indicator when you are writing a large chunk of data to the compression
+  stream in a single call.}
+
+
+  TCompressionLevel = (clNone, clFastest, clDefault, clMax);
+
+  TCompressionStream = class(TCustomZlibStream)
+  private
+    function GetCompressionRate: Single;
+  public
+    constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream);
+    destructor Destroy; override;
+    function Read(var Buffer; Count: Longint): Longint; override;
+    function Write(const Buffer; Count: Longint): Longint; override;
+    function Seek(Offset: Longint; Origin: Word): Longint; override;
+    property CompressionRate: Single read GetCompressionRate;
+    property OnProgress;
+  end;
+
+{ TDecompressionStream decompresses data on the fly as data is read from it.
+
+  Compressed data comes from a separate source stream.  TDecompressionStream
+  is read-only and unidirectional; you can seek forward in the stream, but not
+  backwards.  The special case of setting the stream position to zero is
+  allowed.  Seeking forward decompresses data until the requested position in
+  the uncompressed data has been reached.  Seeking backwards, seeking relative
+  to the end of the stream, requesting the size of the stream, and writing to
+  the stream will raise an exception.
+
+  The Position property returns the number of bytes of uncompressed data that
+  have been read from the stream so far.
+
+  The OnProgress event is called each time the internal input buffer of
+  compressed data is exhausted and the next block is read from the input stream.
+  This is useful for updating a progress indicator when you are reading a
+  large chunk of data from the decompression stream in a single call.}
+
+  TDecompressionStream = class(TCustomZlibStream)
+  public
+    constructor Create(Source: TStream);
+    destructor Destroy; override;
+    function Read(var Buffer; Count: Longint): Longint; override;
+    function Write(const Buffer; Count: Longint): Longint; override;
+    function Seek(Offset: Longint; Origin: Word): Longint; override;
+    property OnProgress;
+  end;
+
+
+
+{ CompressBuf compresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+  Out: OutBuf = ptr to newly allocated buffer containing decompressed data
+       OutBytes = number of bytes in OutBuf   }
+procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
+                      out OutBuf: Pointer; out OutBytes: Integer);
+
+
+{ DecompressBuf decompresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+       OutEstimate = zero, or est. size of the decompressed data
+  Out: OutBuf = ptr to newly allocated buffer containing decompressed data
+       OutBytes = number of bytes in OutBuf   }
+procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
+ OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
+
+{ DecompressToUserBuf decompresses data, buffer to buffer, in one call.
+   In: InBuf = ptr to compressed data
+       InBytes = number of bytes in InBuf
+  Out: OutBuf = ptr to user-allocated buffer to contain decompressed data
+       BufSize = number of bytes in OutBuf   }
+procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
+  const OutBuf: Pointer; BufSize: Integer);
+
+const
+  zlib_version = '1.2.11';
+
+type
+  EZlibError = class(Exception);
+  ECompressionError = class(EZlibError);
+  EDecompressionError = class(EZlibError);
+
+implementation
+
+uses ZLibConst;
+
+const
+  Z_NO_FLUSH      = 0;
+  Z_PARTIAL_FLUSH = 1;
+  Z_SYNC_FLUSH    = 2;
+  Z_FULL_FLUSH    = 3;
+  Z_FINISH        = 4;
+
+  Z_OK            = 0;
+  Z_STREAM_END    = 1;
+  Z_NEED_DICT     = 2;
+  Z_ERRNO         = (-1);
+  Z_STREAM_ERROR  = (-2);
+  Z_DATA_ERROR    = (-3);
+  Z_MEM_ERROR     = (-4);
+  Z_BUF_ERROR     = (-5);
+  Z_VERSION_ERROR = (-6);
+
+  Z_NO_COMPRESSION       =   0;
+  Z_BEST_SPEED           =   1;
+  Z_BEST_COMPRESSION     =   9;
+  Z_DEFAULT_COMPRESSION  = (-1);
+
+  Z_FILTERED            = 1;
+  Z_HUFFMAN_ONLY        = 2;
+  Z_RLE                 = 3;
+  Z_DEFAULT_STRATEGY    = 0;
+
+  Z_BINARY   = 0;
+  Z_ASCII    = 1;
+  Z_UNKNOWN  = 2;
+
+  Z_DEFLATED = 8;
+
+
+{$L adler32.obj}
+{$L compress.obj}
+{$L crc32.obj}
+{$L deflate.obj}
+{$L infback.obj}
+{$L inffast.obj}
+{$L inflate.obj}
+{$L inftrees.obj}
+{$L trees.obj}
+{$L uncompr.obj}
+{$L zutil.obj}
+
+procedure adler32; external;
+procedure compressBound; external;
+procedure crc32; external;
+procedure deflateInit2_; external;
+procedure deflateParams; external;
+
+function _malloc(Size: Integer): Pointer; cdecl;
+begin
+  Result := AllocMem(Size);
+end;
+
+procedure _free(Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
+begin
+  FillChar(P^, count, B);
+end;
+
+procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
+begin
+  Move(source^, dest^, count);
+end;
+
+
+
+// deflate compresses data
+function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar;
+  recsize: Integer): Integer; external;
+function deflate(var strm: TZStreamRec; flush: Integer): Integer; external;
+function deflateEnd(var strm: TZStreamRec): Integer; external;
+
+// inflate decompresses data
+function inflateInit_(var strm: TZStreamRec; version: PChar;
+  recsize: Integer): Integer; external;
+function inflate(var strm: TZStreamRec; flush: Integer): Integer; external;
+function inflateEnd(var strm: TZStreamRec): Integer; external;
+function inflateReset(var strm: TZStreamRec): Integer; external;
+
+
+function zlibAllocMem(AppData: Pointer; Items, Size: Integer): Pointer; cdecl;
+begin
+//  GetMem(Result, Items*Size);
+  Result := AllocMem(Items * Size);
+end;
+
+procedure zlibFreeMem(AppData, Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+{function zlibCheck(code: Integer): Integer;
+begin
+  Result := code;
+  if code < 0 then
+    raise EZlibError.Create('error');    //!!
+end;}
+
+function CCheck(code: Integer): Integer;
+begin
+  Result := code;
+  if code < 0 then
+    raise ECompressionError.Create('error'); //!!
+end;
+
+function DCheck(code: Integer): Integer;
+begin
+  Result := code;
+  if code < 0 then
+    raise EDecompressionError.Create('error');  //!!
+end;
+
+procedure CompressBuf(const InBuf: Pointer; InBytes: Integer;
+                      out OutBuf: Pointer; out OutBytes: Integer);
+var
+  strm: TZStreamRec;
+  P: Pointer;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255;
+  GetMem(OutBuf, OutBytes);
+  try
+    strm.next_in := InBuf;
+    strm.avail_in := InBytes;
+    strm.next_out := OutBuf;
+    strm.avail_out := OutBytes;
+    CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm)));
+    try
+      while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do
+      begin
+        P := OutBuf;
+        Inc(OutBytes, 256);
+        ReallocMem(OutBuf, OutBytes);
+        strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
+        strm.avail_out := 256;
+      end;
+    finally
+      CCheck(deflateEnd(strm));
+    end;
+    ReallocMem(OutBuf, strm.total_out);
+    OutBytes := strm.total_out;
+  except
+    FreeMem(OutBuf);
+    raise
+  end;
+end;
+
+
+procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer;
+  OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer);
+var
+  strm: TZStreamRec;
+  P: Pointer;
+  BufInc: Integer;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  BufInc := (InBytes + 255) and not 255;
+  if OutEstimate = 0 then
+    OutBytes := BufInc
+  else
+    OutBytes := OutEstimate;
+  GetMem(OutBuf, OutBytes);
+  try
+    strm.next_in := InBuf;
+    strm.avail_in := InBytes;
+    strm.next_out := OutBuf;
+    strm.avail_out := OutBytes;
+    DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
+    try
+      while DCheck(inflate(strm, Z_NO_FLUSH)) <> Z_STREAM_END do
+      begin
+        P := OutBuf;
+        Inc(OutBytes, BufInc);
+        ReallocMem(OutBuf, OutBytes);
+        strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P)));
+        strm.avail_out := BufInc;
+      end;
+    finally
+      DCheck(inflateEnd(strm));
+    end;
+    ReallocMem(OutBuf, strm.total_out);
+    OutBytes := strm.total_out;
+  except
+    FreeMem(OutBuf);
+    raise
+  end;
+end;
+
+procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
+  const OutBuf: Pointer; BufSize: Integer);
+var
+  strm: TZStreamRec;
+begin
+  FillChar(strm, sizeof(strm), 0);
+  strm.zalloc := zlibAllocMem;
+  strm.zfree := zlibFreeMem;
+  strm.next_in := InBuf;
+  strm.avail_in := InBytes;
+  strm.next_out := OutBuf;
+  strm.avail_out := BufSize;
+  DCheck(inflateInit_(strm, zlib_version, sizeof(strm)));
+  try
+    if DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END then
+      raise EZlibError.CreateRes(@sTargetBufferTooSmall);
+  finally
+    DCheck(inflateEnd(strm));
+  end;
+end;
+
+// TCustomZlibStream
+
+constructor TCustomZLibStream.Create(Strm: TStream);
+begin
+  inherited Create;
+  FStrm := Strm;
+  FStrmPos := Strm.Position;
+  FZRec.zalloc := zlibAllocMem;
+  FZRec.zfree := zlibFreeMem;
+end;
+
+procedure TCustomZLibStream.Progress(Sender: TObject);
+begin
+  if Assigned(FOnProgress) then FOnProgress(Sender);
+end;
+
+
+// TCompressionStream
+
+constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel;
+  Dest: TStream);
+const
+  Levels: array [TCompressionLevel] of ShortInt =
+    (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION);
+begin
+  inherited Create(Dest);
+  FZRec.next_out := FBuffer;
+  FZRec.avail_out := sizeof(FBuffer);
+  CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec)));
+end;
+
+destructor TCompressionStream.Destroy;
+begin
+  FZRec.next_in := nil;
+  FZRec.avail_in := 0;
+  try
+    if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
+    while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END)
+      and (FZRec.avail_out = 0) do
+    begin
+      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
+      FZRec.next_out := FBuffer;
+      FZRec.avail_out := sizeof(FBuffer);
+    end;
+    if FZRec.avail_out < sizeof(FBuffer) then
+      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out);
+  finally
+    deflateEnd(FZRec);
+  end;
+  inherited Destroy;
+end;
+
+function TCompressionStream.Read(var Buffer; Count: Longint): Longint;
+begin
+  raise ECompressionError.CreateRes(@sInvalidStreamOp);
+end;
+
+function TCompressionStream.Write(const Buffer; Count: Longint): Longint;
+begin
+  FZRec.next_in := @Buffer;
+  FZRec.avail_in := Count;
+  if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
+  while (FZRec.avail_in > 0) do
+  begin
+    CCheck(deflate(FZRec, 0));
+    if FZRec.avail_out = 0 then
+    begin
+      FStrm.WriteBuffer(FBuffer, sizeof(FBuffer));
+      FZRec.next_out := FBuffer;
+      FZRec.avail_out := sizeof(FBuffer);
+      FStrmPos := FStrm.Position;
+      Progress(Self);
+    end;
+  end;
+  Result := Count;
+end;
+
+function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
+begin
+  if (Offset = 0) and (Origin = soFromCurrent) then
+    Result := FZRec.total_in
+  else
+    raise ECompressionError.CreateRes(@sInvalidStreamOp);
+end;
+
+function TCompressionStream.GetCompressionRate: Single;
+begin
+  if FZRec.total_in = 0 then
+    Result := 0
+  else
+    Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0;
+end;
+
+
+// TDecompressionStream
+
+constructor TDecompressionStream.Create(Source: TStream);
+begin
+  inherited Create(Source);
+  FZRec.next_in := FBuffer;
+  FZRec.avail_in := 0;
+  DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec)));
+end;
+
+destructor TDecompressionStream.Destroy;
+begin
+  FStrm.Seek(-FZRec.avail_in, 1);
+  inflateEnd(FZRec);
+  inherited Destroy;
+end;
+
+function TDecompressionStream.Read(var Buffer; Count: Longint): Longint;
+begin
+  FZRec.next_out := @Buffer;
+  FZRec.avail_out := Count;
+  if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos;
+  while (FZRec.avail_out > 0) do
+  begin
+    if FZRec.avail_in = 0 then
+    begin
+      FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer));
+      if FZRec.avail_in = 0 then
+      begin
+        Result := Count - FZRec.avail_out;
+        Exit;
+      end;
+      FZRec.next_in := FBuffer;
+      FStrmPos := FStrm.Position;
+      Progress(Self);
+    end;
+    CCheck(inflate(FZRec, 0));
+  end;
+  Result := Count;
+end;
+
+function TDecompressionStream.Write(const Buffer; Count: Longint): Longint;
+begin
+  raise EDecompressionError.CreateRes(@sInvalidStreamOp);
+end;
+
+function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint;
+var
+  I: Integer;
+  Buf: array [0..4095] of Char;
+begin
+  if (Offset = 0) and (Origin = soFromBeginning) then
+  begin
+    DCheck(inflateReset(FZRec));
+    FZRec.next_in := FBuffer;
+    FZRec.avail_in := 0;
+    FStrm.Position := 0;
+    FStrmPos := 0;
+  end
+  else if ( (Offset >= 0) and (Origin = soFromCurrent)) or
+          ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then
+  begin
+    if Origin = soFromBeginning then Dec(Offset, FZRec.total_out);
+    if Offset > 0 then
+    begin
+      for I := 1 to Offset div sizeof(Buf) do
+        ReadBuffer(Buf, sizeof(Buf));
+      ReadBuffer(Buf, Offset mod sizeof(Buf));
+    end;
+  end
+  else
+    raise EDecompressionError.CreateRes(@sInvalidStreamOp);
+  Result := FZRec.total_out;
+end;
+
+
+end.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/ZLibConst.pas b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/ZLibConst.pas
new file mode 100644
index 000000000..cdfe13671
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/ZLibConst.pas
@@ -0,0 +1,11 @@
+unit ZLibConst;
+
+interface
+
+resourcestring
+  sTargetBufferTooSmall = 'ZLib error: target buffer may be too small';
+  sInvalidStreamOp = 'Invalid stream operation';
+
+implementation
+
+end.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/readme.txt
new file mode 100644
index 000000000..2dc9a8bba
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/readme.txt
@@ -0,0 +1,76 @@
+
+Overview
+========
+
+This directory contains an update to the ZLib interface unit,
+distributed by Borland as a Delphi supplemental component.
+
+The original ZLib unit is Copyright (c) 1997,99 Borland Corp.,
+and is based on zlib version 1.0.4.  There are a series of bugs
+and security problems associated with that old zlib version, and
+we recommend the users to update their ZLib unit.
+
+
+Summary of modifications
+========================
+
+- Improved makefile, adapted to zlib version 1.2.1.
+
+- Some field types from TZStreamRec are changed from Integer to
+  Longint, for consistency with the zlib.h header, and for 64-bit
+  readiness.
+
+- The zlib_version constant is updated.
+
+- The new Z_RLE strategy has its corresponding symbolic constant.
+
+- The allocation and deallocation functions and function types
+  (TAlloc, TFree, zlibAllocMem and zlibFreeMem) are now cdecl,
+  and _malloc and _free are added as C RTL stubs.  As a result,
+  the original C sources of zlib can be compiled out of the box,
+  and linked to the ZLib unit.
+
+
+Suggestions for improvements
+============================
+
+Currently, the ZLib unit provides only a limited wrapper around
+the zlib library, and much of the original zlib functionality is
+missing.  Handling compressed file formats like ZIP/GZIP or PNG
+cannot be implemented without having this functionality.
+Applications that handle these formats are either using their own,
+duplicated code, or not using the ZLib unit at all.
+
+Here are a few suggestions:
+
+- Checksum class wrappers around adler32() and crc32(), similar
+  to the Java classes that implement the java.util.zip.Checksum
+  interface.
+
+- The ability to read and write raw deflate streams, without the
+  zlib stream header and trailer.  Raw deflate streams are used
+  in the ZIP file format.
+
+- The ability to read and write gzip streams, used in the GZIP
+  file format, and normally produced by the gzip program.
+
+- The ability to select a different compression strategy, useful
+  to PNG and MNG image compression, and to multimedia compression
+  in general.  Besides the compression level
+
+    TCompressionLevel = (clNone, clFastest, clDefault, clMax);
+
+  which, in fact, could have used the 'z' prefix and avoided
+  TColor-like symbols
+
+    TCompressionLevel = (zcNone, zcFastest, zcDefault, zcMax);
+
+  there could be a compression strategy
+
+    TCompressionStrategy = (zsDefault, zsFiltered, zsHuffmanOnly, zsRle);
+
+- ZIP and GZIP stream handling via TStreams.
+
+
+--
+Cosmin Truta <cosmint@cs.ubbcluj.ro>
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/zlibd32.mak b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/zlibd32.mak
new file mode 100644
index 000000000..9bb00b7cc
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/delphi/zlibd32.mak
@@ -0,0 +1,99 @@
+# Makefile for zlib
+# For use with Delphi and C++ Builder under Win32
+# Updated for zlib 1.2.x by Cosmin Truta
+
+# ------------ Borland C++ ------------
+
+# This project uses the Delphi (fastcall/register) calling convention:
+LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
+
+CC = bcc32
+LD = bcc32
+AR = tlib
+# do not use "-pr" in CFLAGS
+CFLAGS = -a -d -k- -O2 $(LOC)
+LDFLAGS =
+
+
+# variables
+ZLIB_LIB = zlib.lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# For the sake of the old Borland make,
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del *.obj
+	-del *.exe
+	-del *.lib
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.build b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.build
new file mode 100644
index 000000000..e69630cec
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.build
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<project name="DotZLib" default="build" basedir="./DotZLib">
+	<description>A .Net wrapper library around ZLib1.dll</description>
+
+	<property name="nunit.location" value="c:/program files/NUnit V2.1/bin" />
+	<property name="build.root" value="bin" />
+
+	<property name="debug" value="true" />
+	<property name="nunit" value="true" />
+
+	<property name="build.folder" value="${build.root}/debug/" if="${debug}" />
+	<property name="build.folder" value="${build.root}/release/" unless="${debug}" />
+
+	<target name="clean" description="Remove all generated files">
+		<delete dir="${build.root}" failonerror="false" />
+	</target>
+
+	<target name="build" description="compiles the source code">
+
+		<mkdir dir="${build.folder}" />
+		<csc target="library" output="${build.folder}DotZLib.dll" debug="${debug}">
+			<references basedir="${nunit.location}">
+				<includes if="${nunit}" name="nunit.framework.dll" />
+			</references>
+			<sources>
+				<includes name="*.cs" />
+				<excludes name="UnitTests.cs" unless="${nunit}" />
+			</sources>
+			<arg value="/d:nunit" if="${nunit}" />
+		</csc>
+	</target>
+
+</project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.chm b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.chm
new file mode 100644
index 000000000..f214a444a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.chm
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.sln b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.sln
new file mode 100644
index 000000000..ac45ca048
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib.sln
@@ -0,0 +1,21 @@
+Microsoft Visual Studio Solution File, Format Version 8.00

+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotZLib", "DotZLib\DotZLib.csproj", "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"

+	ProjectSection(ProjectDependencies) = postProject

+	EndProjectSection

+EndProject

+Global

+	GlobalSection(SolutionConfiguration) = preSolution

+		Debug = Debug

+		Release = Release

+	EndGlobalSection

+	GlobalSection(ProjectConfiguration) = postSolution

+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.ActiveCfg = Debug|.NET

+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Debug.Build.0 = Debug|.NET

+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.ActiveCfg = Release|.NET

+		{BB1EE0B1-1808-46CB-B786-949D91117FC5}.Release.Build.0 = Release|.NET

+	EndGlobalSection

+	GlobalSection(ExtensibilityGlobals) = postSolution

+	EndGlobalSection

+	GlobalSection(ExtensibilityAddIns) = postSolution

+	EndGlobalSection

+EndGlobal

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/AssemblyInfo.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/AssemblyInfo.cs
new file mode 100644
index 000000000..724c5347f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/AssemblyInfo.cs
@@ -0,0 +1,58 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+//
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+//
+[assembly: AssemblyTitle("DotZLib")]
+[assembly: AssemblyDescription(".Net bindings for ZLib compression dll 1.2.x")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Henrik Ravn")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("(c) 2004 by Henrik Ravn")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+//
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Revision and Build Numbers
+// by using the '*' as shown below:
+
+[assembly: AssemblyVersion("1.0.*")]
+
+//
+// In order to sign your assembly you must specify a key to use. Refer to the
+// Microsoft .NET Framework documentation for more information on assembly signing.
+//
+// Use the attributes below to control which key is used for signing.
+//
+// Notes:
+//   (*) If no key is specified, the assembly is not signed.
+//   (*) KeyName refers to a key that has been installed in the Crypto Service
+//       Provider (CSP) on your machine. KeyFile refers to a file which contains
+//       a key.
+//   (*) If the KeyFile and the KeyName values are both specified, the
+//       following processing occurs:
+//       (1) If the KeyName can be found in the CSP, that key is used.
+//       (2) If the KeyName does not exist and the KeyFile does exist, the key
+//           in the KeyFile is installed into the CSP and used.
+//   (*) In order to create a KeyFile, you can use the sn.exe (Strong Name) utility.
+//       When specifying the KeyFile, the location of the KeyFile should be
+//       relative to the project output directory which is
+//       %Project Directory%\obj\<configuration>. For example, if your KeyFile is
+//       located in the project directory, you would specify the AssemblyKeyFile
+//       attribute as [assembly: AssemblyKeyFile("..\\..\\mykey.snk")]
+//   (*) Delay Signing is an advanced option - see the Microsoft .NET Framework
+//       documentation for more information on this.
+//
+[assembly: AssemblyDelaySign(false)]
+[assembly: AssemblyKeyFile("")]
+[assembly: AssemblyKeyName("")]
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/ChecksumImpl.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/ChecksumImpl.cs
new file mode 100644
index 000000000..b110dae6a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/ChecksumImpl.cs
@@ -0,0 +1,202 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+    #region ChecksumGeneratorBase
+    /// <summary>
+    /// Implements the common functionality needed for all <see cref="ChecksumGenerator"/>s
+    /// </summary>
+    /// <example></example>
+    public abstract class ChecksumGeneratorBase : ChecksumGenerator
+    {
+        /// <summary>
+        /// The value of the current checksum
+        /// </summary>
+        protected uint _current;
+
+        /// <summary>
+        /// Initializes a new instance of the checksum generator base - the current checksum is
+        /// set to zero
+        /// </summary>
+        public ChecksumGeneratorBase()
+        {
+            _current = 0;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the checksum generator basewith a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public ChecksumGeneratorBase(uint initialValue)
+        {
+            _current = initialValue;
+        }
+
+        /// <summary>
+        /// Resets the current checksum to zero
+        /// </summary>
+        public void Reset() { _current = 0; }
+
+        /// <summary>
+        /// Gets the current checksum value
+        /// </summary>
+        public uint Value { get { return _current; } }
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        /// <remarks>All the other <c>Update</c> methods are implmeneted in terms of this one.
+        /// This is therefore the only method a derived class has to implement</remarks>
+        public abstract void Update(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Updates the current checksum with an array of bytes.
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        public void Update(byte[] data)
+        {
+            Update(data, 0, data.Length);
+        }
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+        public void Update(string data)
+        {
+			Update(Encoding.UTF8.GetBytes(data));
+        }
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string, using a specific encoding
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <param name="encoding">The encoding to use</param>
+        public void Update(string data, Encoding encoding)
+        {
+            Update(encoding.GetBytes(data));
+        }
+
+    }
+    #endregion
+
+    #region CRC32
+    /// <summary>
+    /// Implements a CRC32 checksum generator
+    /// </summary>
+    public sealed class CRC32Checksum : ChecksumGeneratorBase
+    {
+        #region DLL imports
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint crc32(uint crc, int data, uint length);
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the CRC32 checksum generator
+        /// </summary>
+        public CRC32Checksum() : base() {}
+
+        /// <summary>
+        /// Initializes a new instance of the CRC32 checksum generator with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public CRC32Checksum(uint initialValue) : base(initialValue) {}
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        public override void Update(byte[] data, int offset, int count)
+        {
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+            try
+            {
+                _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+            }
+            finally
+            {
+                hData.Free();
+            }
+        }
+
+    }
+    #endregion
+
+    #region Adler
+    /// <summary>
+    /// Implements a checksum generator that computes the Adler checksum on data
+    /// </summary>
+    public sealed class AdlerChecksum : ChecksumGeneratorBase
+    {
+        #region DLL imports
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint adler32(uint adler, int data, uint length);
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the Adler checksum generator
+        /// </summary>
+        public AdlerChecksum() : base() {}
+
+        /// <summary>
+        /// Initializes a new instance of the Adler checksum generator with a specified value
+        /// </summary>
+        /// <param name="initialValue">The value to set the current checksum to</param>
+        public AdlerChecksum(uint initialValue) : base(initialValue) {}
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="NullReferenceException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        public override void Update(byte[] data, int offset, int count)
+        {
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+            GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
+            try
+            {
+                _current = adler32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
+            }
+            finally
+            {
+                hData.Free();
+            }
+        }
+
+    }
+    #endregion
+
+}
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/CircularBuffer.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/CircularBuffer.cs
new file mode 100644
index 000000000..9c8d60195
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/CircularBuffer.cs
@@ -0,0 +1,83 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+
+namespace DotZLib
+{
+
+	/// <summary>
+	/// This class implements a circular buffer
+	/// </summary>
+	internal class CircularBuffer
+	{
+        #region Private data
+        private int _capacity;
+        private int _head;
+        private int _tail;
+        private int _size;
+        private byte[] _buffer;
+        #endregion
+
+        public CircularBuffer(int capacity)
+        {
+            Debug.Assert( capacity > 0 );
+            _buffer = new byte[capacity];
+            _capacity = capacity;
+            _head = 0;
+            _tail = 0;
+            _size = 0;
+        }
+
+        public int Size { get { return _size; } }
+
+        public int Put(byte[] source, int offset, int count)
+        {
+            Debug.Assert( count > 0 );
+            int trueCount = Math.Min(count, _capacity - Size);
+            for (int i = 0; i < trueCount; ++i)
+                _buffer[(_tail+i) % _capacity] = source[offset+i];
+            _tail += trueCount;
+            _tail %= _capacity;
+            _size += trueCount;
+            return trueCount;
+        }
+
+        public bool Put(byte b)
+        {
+            if (Size == _capacity) // no room
+                return false;
+            _buffer[_tail++] = b;
+            _tail %= _capacity;
+            ++_size;
+            return true;
+        }
+
+        public int Get(byte[] destination, int offset, int count)
+        {
+            int trueCount = Math.Min(count,Size);
+            for (int i = 0; i < trueCount; ++i)
+                destination[offset + i] = _buffer[(_head+i) % _capacity];
+            _head += trueCount;
+            _head %= _capacity;
+            _size -= trueCount;
+            return trueCount;
+        }
+
+        public int Get()
+        {
+            if (Size == 0)
+                return -1;
+
+            int result = (int)_buffer[_head++ % _capacity];
+            --_size;
+            return result;
+        }
+
+    }
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/CodecBase.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/CodecBase.cs
new file mode 100644
index 000000000..b0eb78a02
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/CodecBase.cs
@@ -0,0 +1,198 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+	/// <summary>
+	/// Implements the common functionality needed for all <see cref="Codec"/>s
+	/// </summary>
+	public abstract class CodecBase : Codec, IDisposable
+	{
+
+        #region Data members
+
+        /// <summary>
+        /// Instance of the internal zlib buffer structure that is
+        /// passed to all functions in the zlib dll
+        /// </summary>
+        internal ZStream _ztream = new ZStream();
+
+        /// <summary>
+        /// True if the object instance has been disposed, false otherwise
+        /// </summary>
+        protected bool _isDisposed = false;
+
+        /// <summary>
+        /// The size of the internal buffers
+        /// </summary>
+        protected const int kBufferSize = 16384;
+
+        private byte[] _outBuffer = new byte[kBufferSize];
+        private byte[] _inBuffer = new byte[kBufferSize];
+
+        private GCHandle _hInput;
+        private GCHandle _hOutput;
+
+        private uint _checksum = 0;
+
+        #endregion
+
+        /// <summary>
+        /// Initializes a new instance of the <c>CodeBase</c> class.
+        /// </summary>
+		public CodecBase()
+		{
+            try
+            {
+                _hInput = GCHandle.Alloc(_inBuffer, GCHandleType.Pinned);
+                _hOutput = GCHandle.Alloc(_outBuffer, GCHandleType.Pinned);
+            }
+            catch (Exception)
+            {
+                CleanUp(false);
+                throw;
+            }
+        }
+
+
+        #region Codec Members
+
+        /// <summary>
+        /// Occurs when more processed data are available.
+        /// </summary>
+        public event DataAvailableHandler DataAvailable;
+
+        /// <summary>
+        /// Fires the <see cref="DataAvailable"/> event
+        /// </summary>
+        protected void OnDataAvailable()
+        {
+            if (_ztream.total_out > 0)
+            {
+                if (DataAvailable != null)
+                    DataAvailable( _outBuffer, 0, (int)_ztream.total_out);
+                resetOutput();
+            }
+        }
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public void Add(byte[] data)
+        {
+            Add(data,0,data.Length);
+        }
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        public abstract void Add(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        public abstract void Finish();
+
+        /// <summary>
+        /// Gets the checksum of the data that has been added so far
+        /// </summary>
+        public uint Checksum { get { return _checksum; } }
+
+        #endregion
+
+        #region Destructor & IDisposable stuff
+
+        /// <summary>
+        /// Destroys this instance
+        /// </summary>
+        ~CodecBase()
+        {
+            CleanUp(false);
+        }
+
+        /// <summary>
+        /// Releases any unmanaged resources and calls the <see cref="CleanUp()"/> method of the derived class
+        /// </summary>
+        public void Dispose()
+        {
+            CleanUp(true);
+        }
+
+        /// <summary>
+        /// Performs any codec specific cleanup
+        /// </summary>
+        /// <remarks>This must be implemented by a derived class</remarks>
+        protected abstract void CleanUp();
+
+        // performs the release of the handles and calls the dereived CleanUp()
+        private void CleanUp(bool isDisposing)
+        {
+            if (!_isDisposed)
+            {
+                CleanUp();
+                if (_hInput.IsAllocated)
+                    _hInput.Free();
+                if (_hOutput.IsAllocated)
+                    _hOutput.Free();
+
+                _isDisposed = true;
+            }
+        }
+
+
+        #endregion
+
+        #region Helper methods
+
+        /// <summary>
+        /// Copies a number of bytes to the internal codec buffer - ready for proccesing
+        /// </summary>
+        /// <param name="data">The byte array that contains the data to copy</param>
+        /// <param name="startIndex">The index of the first byte to copy</param>
+        /// <param name="count">The number of bytes to copy from <c>data</c></param>
+        protected void copyInput(byte[] data, int startIndex, int count)
+        {
+            Array.Copy(data, startIndex, _inBuffer,0, count);
+            _ztream.next_in = _hInput.AddrOfPinnedObject();
+            _ztream.total_in = 0;
+            _ztream.avail_in = (uint)count;
+
+        }
+
+        /// <summary>
+        /// Resets the internal output buffers to a known state - ready for processing
+        /// </summary>
+        protected void resetOutput()
+        {
+            _ztream.total_out = 0;
+            _ztream.avail_out = kBufferSize;
+            _ztream.next_out = _hOutput.AddrOfPinnedObject();
+        }
+
+        /// <summary>
+        /// Updates the running checksum property
+        /// </summary>
+        /// <param name="newSum">The new checksum value</param>
+        protected void setChecksum(uint newSum)
+        {
+            _checksum = newSum;
+        }
+        #endregion
+
+    }
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/Deflater.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/Deflater.cs
new file mode 100644
index 000000000..9039f41f6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/Deflater.cs
@@ -0,0 +1,106 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+    /// <summary>
+    /// Implements a data compressor, using the deflate algorithm in the ZLib dll
+    /// </summary>
+	public sealed class Deflater : CodecBase
+	{
+        #region Dll imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern int deflateInit_(ref ZStream sz, int level, string vs, int size);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflate(ref ZStream sz, int flush);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflateReset(ref ZStream sz);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int deflateEnd(ref ZStream sz);
+        #endregion
+
+        /// <summary>
+        /// Constructs an new instance of the <c>Deflater</c>
+        /// </summary>
+        /// <param name="level">The compression level to use for this <c>Deflater</c></param>
+		public Deflater(CompressLevel level) : base()
+		{
+            int retval = deflateInit_(ref _ztream, (int)level, Info.Version, Marshal.SizeOf(_ztream));
+            if (retval != 0)
+                throw new ZLibException(retval, "Could not initialize deflater");
+
+            resetOutput();
+		}
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public override void Add(byte[] data, int offset, int count)
+        {
+            if (data == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+
+            int total = count;
+            int inputIndex = offset;
+            int err = 0;
+
+            while (err >= 0 && inputIndex < total)
+            {
+                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+                while (err >= 0 && _ztream.avail_in > 0)
+                {
+                    err = deflate(ref _ztream, (int)FlushTypes.None);
+                    if (err == 0)
+                        while (_ztream.avail_out == 0)
+                        {
+                            OnDataAvailable();
+                            err = deflate(ref _ztream, (int)FlushTypes.None);
+                        }
+                    inputIndex += (int)_ztream.total_in;
+                }
+            }
+            setChecksum( _ztream.adler );
+        }
+
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        public override void Finish()
+        {
+            int err;
+            do
+            {
+                err = deflate(ref _ztream, (int)FlushTypes.Finish);
+                OnDataAvailable();
+            }
+            while (err == 0);
+            setChecksum( _ztream.adler );
+            deflateReset(ref _ztream);
+            resetOutput();
+        }
+
+        /// <summary>
+        /// Closes the internal zlib deflate stream
+        /// </summary>
+        protected override void CleanUp() { deflateEnd(ref _ztream); }
+
+    }
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.cs
new file mode 100644
index 000000000..90c7c3b38
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.cs
@@ -0,0 +1,288 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+
+
+namespace DotZLib
+{
+
+    #region Internal types
+
+    /// <summary>
+    /// Defines constants for the various flush types used with zlib
+    /// </summary>
+    internal enum FlushTypes
+    {
+        None,  Partial,  Sync,  Full,  Finish,  Block
+    }
+
+    #region ZStream structure
+    // internal mapping of the zlib zstream structure for marshalling
+    [StructLayoutAttribute(LayoutKind.Sequential, Pack=4, Size=0, CharSet=CharSet.Ansi)]
+    internal struct ZStream
+    {
+        public IntPtr next_in;
+        public uint avail_in;
+        public uint total_in;
+
+        public IntPtr next_out;
+        public uint avail_out;
+        public uint total_out;
+
+        [MarshalAs(UnmanagedType.LPStr)]
+        string msg;
+        uint state;
+
+        uint zalloc;
+        uint zfree;
+        uint opaque;
+
+        int data_type;
+        public uint adler;
+        uint reserved;
+    }
+
+    #endregion
+
+    #endregion
+
+    #region Public enums
+    /// <summary>
+    /// Defines constants for the available compression levels in zlib
+    /// </summary>
+    public enum CompressLevel : int
+    {
+        /// <summary>
+        /// The default compression level with a reasonable compromise between compression and speed
+        /// </summary>
+        Default = -1,
+        /// <summary>
+        /// No compression at all. The data are passed straight through.
+        /// </summary>
+        None = 0,
+        /// <summary>
+        /// The maximum compression rate available.
+        /// </summary>
+        Best = 9,
+        /// <summary>
+        /// The fastest available compression level.
+        /// </summary>
+        Fastest = 1
+    }
+    #endregion
+
+    #region Exception classes
+    /// <summary>
+    /// The exception that is thrown when an error occurs on the zlib dll
+    /// </summary>
+    public class ZLibException : ApplicationException
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+        /// error message and error code
+        /// </summary>
+        /// <param name="errorCode">The zlib error code that caused the exception</param>
+        /// <param name="msg">A message that (hopefully) describes the error</param>
+        public ZLibException(int errorCode, string msg) : base(String.Format("ZLib error {0} {1}", errorCode, msg))
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZLibException"/> class with a specified
+        /// error code
+        /// </summary>
+        /// <param name="errorCode">The zlib error code that caused the exception</param>
+        public ZLibException(int errorCode) : base(String.Format("ZLib error {0}", errorCode))
+        {
+        }
+    }
+    #endregion
+
+    #region Interfaces
+
+    /// <summary>
+    /// Declares methods and properties that enables a running checksum to be calculated
+    /// </summary>
+    public interface ChecksumGenerator
+    {
+        /// <summary>
+        /// Gets the current value of the checksum
+        /// </summary>
+        uint Value { get; }
+
+        /// <summary>
+        /// Clears the current checksum to 0
+        /// </summary>
+        void Reset();
+
+        /// <summary>
+        /// Updates the current checksum with an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        void Update(byte[] data);
+
+        /// <summary>
+        /// Updates the current checksum with part of an array of bytes
+        /// </summary>
+        /// <param name="data">The data to update the checksum with</param>
+        /// <param name="offset">Where in <c>data</c> to start updating</param>
+        /// <param name="count">The number of bytes from <c>data</c> to use</param>
+        /// <exception cref="ArgumentException">The sum of offset and count is larger than the length of <c>data</c></exception>
+        /// <exception cref="ArgumentNullException"><c>data</c> is a null reference</exception>
+        /// <exception cref="ArgumentOutOfRangeException">Offset or count is negative.</exception>
+        void Update(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <remarks>The characters in the string are converted by the UTF-8 encoding</remarks>
+        void Update(string data);
+
+        /// <summary>
+        /// Updates the current checksum with the data from a string, using a specific encoding
+        /// </summary>
+        /// <param name="data">The string to update the checksum with</param>
+        /// <param name="encoding">The encoding to use</param>
+        void Update(string data, Encoding encoding);
+    }
+
+
+    /// <summary>
+    /// Represents the method that will be called from a codec when new data
+    /// are available.
+    /// </summary>
+    /// <paramref name="data">The byte array containing the processed data</paramref>
+    /// <paramref name="startIndex">The index of the first processed byte in <c>data</c></paramref>
+    /// <paramref name="count">The number of processed bytes available</paramref>
+    /// <remarks>On return from this method, the data may be overwritten, so grab it while you can.
+    /// You cannot assume that startIndex will be zero.
+    /// </remarks>
+    public delegate void DataAvailableHandler(byte[] data, int startIndex, int count);
+
+    /// <summary>
+    /// Declares methods and events for implementing compressors/decompressors
+    /// </summary>
+    public interface Codec
+    {
+        /// <summary>
+        /// Occurs when more processed data are available.
+        /// </summary>
+        event DataAvailableHandler DataAvailable;
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        void Add(byte[] data);
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        void Add(byte[] data, int offset, int count);
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        void Finish();
+
+        /// <summary>
+        /// Gets the checksum of the data that has been added so far
+        /// </summary>
+        uint Checksum { get; }
+
+
+    }
+
+    #endregion
+
+    #region Classes
+    /// <summary>
+    /// Encapsulates general information about the ZLib library
+    /// </summary>
+    public class Info
+    {
+        #region DLL imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern uint zlibCompileFlags();
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern string zlibVersion();
+        #endregion
+
+        #region Private stuff
+        private uint _flags;
+
+        // helper function that unpacks a bitsize mask
+        private static int bitSize(uint bits)
+        {
+            switch (bits)
+            {
+                case 0: return 16;
+                case 1: return 32;
+                case 2: return 64;
+            }
+            return -1;
+        }
+        #endregion
+
+        /// <summary>
+        /// Constructs an instance of the <c>Info</c> class.
+        /// </summary>
+        public Info()
+        {
+            _flags = zlibCompileFlags();
+        }
+
+        /// <summary>
+        /// True if the library is compiled with debug info
+        /// </summary>
+        public bool HasDebugInfo { get { return 0 != (_flags & 0x100); } }
+
+        /// <summary>
+        /// True if the library is compiled with assembly optimizations
+        /// </summary>
+        public bool UsesAssemblyCode { get { return 0 != (_flags & 0x200); } }
+
+        /// <summary>
+        /// Gets the size of the unsigned int that was compiled into Zlib
+        /// </summary>
+        public int SizeOfUInt { get { return bitSize(_flags & 3); } }
+
+        /// <summary>
+        /// Gets the size of the unsigned long that was compiled into Zlib
+        /// </summary>
+        public int SizeOfULong { get { return bitSize((_flags >> 2) & 3); } }
+
+        /// <summary>
+        /// Gets the size of the pointers that were compiled into Zlib
+        /// </summary>
+        public int SizeOfPointer { get { return bitSize((_flags >> 4) & 3); } }
+
+        /// <summary>
+        /// Gets the size of the z_off_t type that was compiled into Zlib
+        /// </summary>
+        public int SizeOfOffset { get { return bitSize((_flags >> 6) & 3); } }
+
+        /// <summary>
+        /// Gets the version of ZLib as a string, e.g. "1.2.1"
+        /// </summary>
+        public static string Version { get { return zlibVersion(); } }
+    }
+
+    #endregion
+
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.csproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.csproj
new file mode 100644
index 000000000..dea7fb16a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/DotZLib.csproj
@@ -0,0 +1,141 @@
+<VisualStudioProject>
+    <CSHARP
+        ProjectType = "Local"
+        ProductVersion = "7.10.3077"
+        SchemaVersion = "2.0"
+        ProjectGuid = "{BB1EE0B1-1808-46CB-B786-949D91117FC5}"
+    >
+        <Build>
+            <Settings
+                ApplicationIcon = ""
+                AssemblyKeyContainerName = ""
+                AssemblyName = "DotZLib"
+                AssemblyOriginatorKeyFile = ""
+                DefaultClientScript = "JScript"
+                DefaultHTMLPageLayout = "Grid"
+                DefaultTargetSchema = "IE50"
+                DelaySign = "false"
+                OutputType = "Library"
+                PreBuildEvent = ""
+                PostBuildEvent = ""
+                RootNamespace = "DotZLib"
+                RunPostBuildEvent = "OnBuildSuccess"
+                StartupObject = ""
+            >
+                <Config
+                    Name = "Debug"
+                    AllowUnsafeBlocks = "false"
+                    BaseAddress = "285212672"
+                    CheckForOverflowUnderflow = "false"
+                    ConfigurationOverrideFile = ""
+                    DefineConstants = "DEBUG;TRACE"
+                    DocumentationFile = "docs\DotZLib.xml"
+                    DebugSymbols = "true"
+                    FileAlignment = "4096"
+                    IncrementalBuild = "false"
+                    NoStdLib = "false"
+                    NoWarn = "1591"
+                    Optimize = "false"
+                    OutputPath = "bin\Debug\"
+                    RegisterForComInterop = "false"
+                    RemoveIntegerChecks = "false"
+                    TreatWarningsAsErrors = "false"
+                    WarningLevel = "4"
+                />
+                <Config
+                    Name = "Release"
+                    AllowUnsafeBlocks = "false"
+                    BaseAddress = "285212672"
+                    CheckForOverflowUnderflow = "false"
+                    ConfigurationOverrideFile = ""
+                    DefineConstants = "TRACE"
+                    DocumentationFile = "docs\DotZLib.xml"
+                    DebugSymbols = "false"
+                    FileAlignment = "4096"
+                    IncrementalBuild = "false"
+                    NoStdLib = "false"
+                    NoWarn = ""
+                    Optimize = "true"
+                    OutputPath = "bin\Release\"
+                    RegisterForComInterop = "false"
+                    RemoveIntegerChecks = "false"
+                    TreatWarningsAsErrors = "false"
+                    WarningLevel = "4"
+                />
+            </Settings>
+            <References>
+                <Reference
+                    Name = "System"
+                    AssemblyName = "System"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.dll"
+                />
+                <Reference
+                    Name = "System.Data"
+                    AssemblyName = "System.Data"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.Data.dll"
+                />
+                <Reference
+                    Name = "System.XML"
+                    AssemblyName = "System.Xml"
+                    HintPath = "C:\WINNT\Microsoft.NET\Framework\v1.1.4322\System.XML.dll"
+                />
+                <Reference
+                    Name = "nunit.framework"
+                    AssemblyName = "nunit.framework"
+                    HintPath = "E:\apps\NUnit V2.1\\bin\nunit.framework.dll"
+                    AssemblyFolderKey = "hklm\dn\nunit.framework"
+                />
+            </References>
+        </Build>
+        <Files>
+            <Include>
+                <File
+                    RelPath = "AssemblyInfo.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "ChecksumImpl.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "CircularBuffer.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "CodecBase.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "Deflater.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "DotZLib.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "GZipStream.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "Inflater.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+                <File
+                    RelPath = "UnitTests.cs"
+                    SubType = "Code"
+                    BuildAction = "Compile"
+                />
+            </Include>
+        </Files>
+    </CSHARP>
+</VisualStudioProject>
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/GZipStream.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/GZipStream.cs
new file mode 100644
index 000000000..f0eada1d2
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/GZipStream.cs
@@ -0,0 +1,301 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+	/// <summary>
+	/// Implements a compressed <see cref="Stream"/>, in GZip (.gz) format.
+	/// </summary>
+	public class GZipStream : Stream, IDisposable
+	{
+        #region Dll Imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern IntPtr gzopen(string name, string mode);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzclose(IntPtr gzFile);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzwrite(IntPtr gzFile, int data, int length);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzread(IntPtr gzFile, int data, int length);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzgetc(IntPtr gzFile);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int gzputc(IntPtr gzFile, int c);
+
+        #endregion
+
+        #region Private data
+        private IntPtr _gzFile;
+        private bool _isDisposed = false;
+        private bool _isWriting;
+        #endregion
+
+        #region Constructors
+        /// <summary>
+        /// Creates a new file as a writeable GZipStream
+        /// </summary>
+        /// <param name="fileName">The name of the compressed file to create</param>
+        /// <param name="level">The compression level to use when adding data</param>
+        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+		public GZipStream(string fileName, CompressLevel level)
+		{
+            _isWriting = true;
+            _gzFile = gzopen(fileName, String.Format("wb{0}", (int)level));
+            if (_gzFile == IntPtr.Zero)
+                throw new ZLibException(-1, "Could not open " + fileName);
+		}
+
+        /// <summary>
+        /// Opens an existing file as a readable GZipStream
+        /// </summary>
+        /// <param name="fileName">The name of the file to open</param>
+        /// <exception cref="ZLibException">If an error occurred in the internal zlib function</exception>
+        public GZipStream(string fileName)
+        {
+            _isWriting = false;
+            _gzFile = gzopen(fileName, "rb");
+            if (_gzFile == IntPtr.Zero)
+                throw new ZLibException(-1, "Could not open " + fileName);
+
+        }
+        #endregion
+
+        #region Access properties
+        /// <summary>
+        /// Returns true of this stream can be read from, false otherwise
+        /// </summary>
+        public override bool CanRead
+        {
+            get
+            {
+                return !_isWriting;
+            }
+        }
+
+
+        /// <summary>
+        /// Returns false.
+        /// </summary>
+        public override bool CanSeek
+        {
+            get
+            {
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Returns true if this tsream is writeable, false otherwise
+        /// </summary>
+        public override bool CanWrite
+        {
+            get
+            {
+                return _isWriting;
+            }
+        }
+        #endregion
+
+        #region Destructor & IDispose stuff
+
+        /// <summary>
+        /// Destroys this instance
+        /// </summary>
+        ~GZipStream()
+        {
+            cleanUp(false);
+        }
+
+        /// <summary>
+        /// Closes the external file handle
+        /// </summary>
+        public void Dispose()
+        {
+            cleanUp(true);
+        }
+
+        // Does the actual closing of the file handle.
+        private void cleanUp(bool isDisposing)
+        {
+            if (!_isDisposed)
+            {
+                gzclose(_gzFile);
+                _isDisposed = true;
+            }
+        }
+        #endregion
+
+        #region Basic reading and writing
+        /// <summary>
+        /// Attempts to read a number of bytes from the stream.
+        /// </summary>
+        /// <param name="buffer">The destination data buffer</param>
+        /// <param name="offset">The index of the first destination byte in <c>buffer</c></param>
+        /// <param name="count">The number of bytes requested</param>
+        /// <returns>The number of bytes read</returns>
+        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
+        /// <exception cref="NotSupportedException">If this stream is not readable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override int Read(byte[] buffer, int offset, int count)
+        {
+            if (!CanRead) throw new NotSupportedException();
+            if (buffer == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > buffer.Length) throw new ArgumentException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+            int result;
+            try
+            {
+                result = gzread(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+                if (result < 0)
+                    throw new IOException();
+            }
+            finally
+            {
+                h.Free();
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// Attempts to read a single byte from the stream.
+        /// </summary>
+        /// <returns>The byte that was read, or -1 in case of error or End-Of-File</returns>
+        public override int ReadByte()
+        {
+            if (!CanRead) throw new NotSupportedException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+            return gzgetc(_gzFile);
+        }
+
+        /// <summary>
+        /// Writes a number of bytes to the stream
+        /// </summary>
+        /// <param name="buffer"></param>
+        /// <param name="offset"></param>
+        /// <param name="count"></param>
+        /// <exception cref="ArgumentNullException">If <c>buffer</c> is null</exception>
+        /// <exception cref="ArgumentOutOfRangeException">If <c>count</c> or <c>offset</c> are negative</exception>
+        /// <exception cref="ArgumentException">If <c>offset</c>  + <c>count</c> is &gt; buffer.Length</exception>
+        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override void Write(byte[] buffer, int offset, int count)
+        {
+            if (!CanWrite) throw new NotSupportedException();
+            if (buffer == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > buffer.Length) throw new ArgumentException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            GCHandle h = GCHandle.Alloc(buffer, GCHandleType.Pinned);
+            try
+            {
+                int result = gzwrite(_gzFile, h.AddrOfPinnedObject().ToInt32() + offset, count);
+                if (result < 0)
+                    throw new IOException();
+            }
+            finally
+            {
+                h.Free();
+            }
+        }
+
+        /// <summary>
+        /// Writes a single byte to the stream
+        /// </summary>
+        /// <param name="value">The byte to add to the stream.</param>
+        /// <exception cref="NotSupportedException">If this stream is not writeable.</exception>
+        /// <exception cref="ObjectDisposedException">If this stream has been disposed.</exception>
+        public override void WriteByte(byte value)
+        {
+            if (!CanWrite) throw new NotSupportedException();
+            if (_isDisposed) throw new ObjectDisposedException("GZipStream");
+
+            int result = gzputc(_gzFile, (int)value);
+            if (result < 0)
+                throw new IOException();
+        }
+        #endregion
+
+        #region Position & length stuff
+        /// <summary>
+        /// Not supported.
+        /// </summary>
+        /// <param name="value"></param>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override void SetLength(long value)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        ///  Not suppported.
+        /// </summary>
+        /// <param name="offset"></param>
+        /// <param name="origin"></param>
+        /// <returns></returns>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Seek(long offset, SeekOrigin origin)
+        {
+            throw new NotSupportedException();
+        }
+
+        /// <summary>
+        /// Flushes the <c>GZipStream</c>.
+        /// </summary>
+        /// <remarks>In this implementation, this method does nothing. This is because excessive
+        /// flushing may degrade the achievable compression rates.</remarks>
+        public override void Flush()
+        {
+            // left empty on purpose
+        }
+
+        /// <summary>
+        /// Gets/sets the current position in the <c>GZipStream</c>. Not suppported.
+        /// </summary>
+        /// <remarks>In this implementation this property is not supported</remarks>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Position
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+            set
+            {
+                throw new NotSupportedException();
+            }
+        }
+
+        /// <summary>
+        /// Gets the size of the stream. Not suppported.
+        /// </summary>
+        /// <remarks>In this implementation this property is not supported</remarks>
+        /// <exception cref="NotSupportedException">Always thrown</exception>
+        public override long Length
+        {
+            get
+            {
+                throw new NotSupportedException();
+            }
+        }
+        #endregion
+    }
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/Inflater.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/Inflater.cs
new file mode 100644
index 000000000..d295f2680
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/Inflater.cs
@@ -0,0 +1,105 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace DotZLib
+{
+
+    /// <summary>
+    /// Implements a data decompressor, using the inflate algorithm in the ZLib dll
+    /// </summary>
+    public class Inflater : CodecBase
+	{
+        #region Dll imports
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Ansi)]
+        private static extern int inflateInit_(ref ZStream sz, string vs, int size);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflate(ref ZStream sz, int flush);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflateReset(ref ZStream sz);
+
+        [DllImport("ZLIB1.dll", CallingConvention=CallingConvention.Cdecl)]
+        private static extern int inflateEnd(ref ZStream sz);
+        #endregion
+
+        /// <summary>
+        /// Constructs an new instance of the <c>Inflater</c>
+        /// </summary>
+        public Inflater() : base()
+		{
+            int retval = inflateInit_(ref _ztream, Info.Version, Marshal.SizeOf(_ztream));
+            if (retval != 0)
+                throw new ZLibException(retval, "Could not initialize inflater");
+
+            resetOutput();
+        }
+
+
+        /// <summary>
+        /// Adds more data to the codec to be processed.
+        /// </summary>
+        /// <param name="data">Byte array containing the data to be added to the codec</param>
+        /// <param name="offset">The index of the first byte to add from <c>data</c></param>
+        /// <param name="count">The number of bytes to add</param>
+        /// <remarks>Adding data may, or may not, raise the <c>DataAvailable</c> event</remarks>
+        public override void Add(byte[] data, int offset, int count)
+        {
+            if (data == null) throw new ArgumentNullException();
+            if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
+            if ((offset+count) > data.Length) throw new ArgumentException();
+
+            int total = count;
+            int inputIndex = offset;
+            int err = 0;
+
+            while (err >= 0 && inputIndex < total)
+            {
+                copyInput(data, inputIndex, Math.Min(total - inputIndex, kBufferSize));
+                err = inflate(ref _ztream, (int)FlushTypes.None);
+                if (err == 0)
+                    while (_ztream.avail_out == 0)
+                    {
+                        OnDataAvailable();
+                        err = inflate(ref _ztream, (int)FlushTypes.None);
+                    }
+
+                inputIndex += (int)_ztream.total_in;
+            }
+            setChecksum( _ztream.adler );
+        }
+
+
+        /// <summary>
+        /// Finishes up any pending data that needs to be processed and handled.
+        /// </summary>
+        public override void Finish()
+        {
+            int err;
+            do
+            {
+                err = inflate(ref _ztream, (int)FlushTypes.Finish);
+                OnDataAvailable();
+            }
+            while (err == 0);
+            setChecksum( _ztream.adler );
+            inflateReset(ref _ztream);
+            resetOutput();
+        }
+
+        /// <summary>
+        /// Closes the internal zlib inflate stream
+        /// </summary>
+        protected override void CleanUp() { inflateEnd(ref _ztream); }
+
+
+	}
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/UnitTests.cs b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/UnitTests.cs
new file mode 100644
index 000000000..6d8aebb79
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/DotZLib/UnitTests.cs
@@ -0,0 +1,274 @@
+//
+// © Copyright Henrik Ravn 2004
+//
+// Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+using System;
+using System.Collections;
+using System.IO;
+
+// uncomment the define below to include unit tests
+//#define nunit
+#if nunit
+using NUnit.Framework;
+
+// Unit tests for the DotZLib class library
+// ----------------------------------------
+//
+// Use this with NUnit 2 from http://www.nunit.org
+//
+
+namespace DotZLibTests
+{
+    using DotZLib;
+
+    // helper methods
+    internal class Utils
+    {
+        public static bool byteArrEqual( byte[] lhs, byte[] rhs )
+        {
+            if (lhs.Length != rhs.Length)
+                return false;
+            for (int i = lhs.Length-1; i >= 0; --i)
+                if (lhs[i] != rhs[i])
+                    return false;
+            return true;
+        }
+
+    }
+
+
+    [TestFixture]
+    public class CircBufferTests
+    {
+        #region Circular buffer tests
+        [Test]
+        public void SinglePutGet()
+        {
+            CircularBuffer buf = new CircularBuffer(10);
+            Assert.AreEqual( 0, buf.Size );
+            Assert.AreEqual( -1, buf.Get() );
+
+            Assert.IsTrue(buf.Put( 1 ));
+            Assert.AreEqual( 1, buf.Size );
+            Assert.AreEqual( 1, buf.Get() );
+            Assert.AreEqual( 0, buf.Size );
+            Assert.AreEqual( -1, buf.Get() );
+        }
+
+        [Test]
+        public void BlockPutGet()
+        {
+            CircularBuffer buf = new CircularBuffer(10);
+            byte[] arr = {1,2,3,4,5,6,7,8,9,10};
+            Assert.AreEqual( 10, buf.Put(arr,0,10) );
+            Assert.AreEqual( 10, buf.Size );
+            Assert.IsFalse( buf.Put(11) );
+            Assert.AreEqual( 1, buf.Get() );
+            Assert.IsTrue( buf.Put(11) );
+
+            byte[] arr2 = (byte[])arr.Clone();
+            Assert.AreEqual( 9, buf.Get(arr2,1,9) );
+            Assert.IsTrue( Utils.byteArrEqual(arr,arr2) );
+        }
+
+        #endregion
+    }
+
+    [TestFixture]
+    public class ChecksumTests
+    {
+        #region CRC32 Tests
+        [Test]
+        public void CRC32_Null()
+        {
+            CRC32Checksum crc32 = new CRC32Checksum();
+            Assert.AreEqual( 0, crc32.Value );
+
+            crc32 = new CRC32Checksum(1);
+            Assert.AreEqual( 1, crc32.Value );
+
+            crc32 = new CRC32Checksum(556);
+            Assert.AreEqual( 556, crc32.Value );
+        }
+
+        [Test]
+        public void CRC32_Data()
+        {
+            CRC32Checksum crc32 = new CRC32Checksum();
+            byte[] data = { 1,2,3,4,5,6,7 };
+            crc32.Update(data);
+            Assert.AreEqual( 0x70e46888, crc32.Value  );
+
+            crc32 = new CRC32Checksum();
+            crc32.Update("penguin");
+            Assert.AreEqual( 0x0e5c1a120, crc32.Value );
+
+            crc32 = new CRC32Checksum(1);
+            crc32.Update("penguin");
+            Assert.AreEqual(0x43b6aa94, crc32.Value);
+
+        }
+        #endregion
+
+        #region Adler tests
+
+        [Test]
+        public void Adler_Null()
+        {
+            AdlerChecksum adler = new AdlerChecksum();
+            Assert.AreEqual(0, adler.Value);
+
+            adler = new AdlerChecksum(1);
+            Assert.AreEqual( 1, adler.Value );
+
+            adler = new AdlerChecksum(556);
+            Assert.AreEqual( 556, adler.Value );
+        }
+
+        [Test]
+        public void Adler_Data()
+        {
+            AdlerChecksum adler = new AdlerChecksum(1);
+            byte[] data = { 1,2,3,4,5,6,7 };
+            adler.Update(data);
+            Assert.AreEqual( 0x5b001d, adler.Value  );
+
+            adler = new AdlerChecksum();
+            adler.Update("penguin");
+            Assert.AreEqual(0x0bcf02f6, adler.Value );
+
+            adler = new AdlerChecksum(1);
+            adler.Update("penguin");
+            Assert.AreEqual(0x0bd602f7, adler.Value);
+
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class InfoTests
+    {
+        #region Info tests
+        [Test]
+        public void Info_Version()
+        {
+            Info info = new Info();
+            Assert.AreEqual("1.2.11", Info.Version);
+            Assert.AreEqual(32, info.SizeOfUInt);
+            Assert.AreEqual(32, info.SizeOfULong);
+            Assert.AreEqual(32, info.SizeOfPointer);
+            Assert.AreEqual(32, info.SizeOfOffset);
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class DeflateInflateTests
+    {
+        #region Deflate tests
+        [Test]
+        public void Deflate_Init()
+        {
+            using (Deflater def = new Deflater(CompressLevel.Default))
+            {
+            }
+        }
+
+        private ArrayList compressedData = new ArrayList();
+        private uint adler1;
+
+        private ArrayList uncompressedData = new ArrayList();
+        private uint adler2;
+
+        public void CDataAvail(byte[] data, int startIndex, int count)
+        {
+            for (int i = 0; i < count; ++i)
+                compressedData.Add(data[i+startIndex]);
+        }
+
+        [Test]
+        public void Deflate_Compress()
+        {
+            compressedData.Clear();
+
+            byte[] testData = new byte[35000];
+            for (int i = 0; i < testData.Length; ++i)
+                testData[i] = 5;
+
+            using (Deflater def = new Deflater((CompressLevel)5))
+            {
+                def.DataAvailable += new DataAvailableHandler(CDataAvail);
+                def.Add(testData);
+                def.Finish();
+                adler1 = def.Checksum;
+            }
+        }
+        #endregion
+
+        #region Inflate tests
+        [Test]
+        public void Inflate_Init()
+        {
+            using (Inflater inf = new Inflater())
+            {
+            }
+        }
+
+        private void DDataAvail(byte[] data, int startIndex, int count)
+        {
+            for (int i = 0; i < count; ++i)
+                uncompressedData.Add(data[i+startIndex]);
+        }
+
+        [Test]
+        public void Inflate_Expand()
+        {
+            uncompressedData.Clear();
+
+            using (Inflater inf = new Inflater())
+            {
+                inf.DataAvailable += new DataAvailableHandler(DDataAvail);
+                inf.Add((byte[])compressedData.ToArray(typeof(byte)));
+                inf.Finish();
+                adler2 = inf.Checksum;
+            }
+            Assert.AreEqual( adler1, adler2 );
+        }
+        #endregion
+    }
+
+    [TestFixture]
+    public class GZipStreamTests
+    {
+        #region GZipStream test
+        [Test]
+        public void GZipStream_WriteRead()
+        {
+            using (GZipStream gzOut = new GZipStream("gzstream.gz", CompressLevel.Best))
+            {
+                BinaryWriter writer = new BinaryWriter(gzOut);
+                writer.Write("hi there");
+                writer.Write(Math.PI);
+                writer.Write(42);
+            }
+
+            using (GZipStream gzIn = new GZipStream("gzstream.gz"))
+            {
+                BinaryReader reader = new BinaryReader(gzIn);
+                string s = reader.ReadString();
+                Assert.AreEqual("hi there",s);
+                double d = reader.ReadDouble();
+                Assert.AreEqual(Math.PI, d);
+                int i = reader.ReadInt32();
+                Assert.AreEqual(42,i);
+            }
+
+        }
+        #endregion
+	}
+}
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/LICENSE_1_0.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/LICENSE_1_0.txt
new file mode 100644
index 000000000..127a5bc39
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/LICENSE_1_0.txt
@@ -0,0 +1,23 @@
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/readme.txt
new file mode 100644
index 000000000..4d8c2dd93
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/dotzlib/readme.txt
@@ -0,0 +1,58 @@
+This directory contains a .Net wrapper class library for the ZLib1.dll
+
+The wrapper includes support for inflating/deflating memory buffers,
+.Net streaming wrappers for the gz streams part of zlib, and wrappers
+for the checksum parts of zlib. See DotZLib/UnitTests.cs for examples.
+
+Directory structure:
+--------------------
+
+LICENSE_1_0.txt       - License file.
+readme.txt            - This file.
+DotZLib.chm           - Class library documentation
+DotZLib.build         - NAnt build file
+DotZLib.sln           - Microsoft Visual Studio 2003 solution file
+
+DotZLib\*.cs          - Source files for the class library
+
+Unit tests:
+-----------
+The file DotZLib/UnitTests.cs contains unit tests for use with NUnit 2.1 or higher.
+To include unit tests in the build, define nunit before building.
+
+
+Build instructions:
+-------------------
+
+1. Using Visual Studio.Net 2003:
+   Open DotZLib.sln in VS.Net and build from there. Output file (DotZLib.dll)
+   will be found ./DotZLib/bin/release or ./DotZLib/bin/debug, depending on
+   you are building the release or debug version of the library. Check
+   DotZLib/UnitTests.cs for instructions on how to include unit tests in the
+   build.
+
+2. Using NAnt:
+   Open a command prompt with access to the build environment and run nant
+   in the same directory as the DotZLib.build file.
+   You can define 2 properties on the nant command-line to control the build:
+   debug={true|false} to toggle between release/debug builds (default=true).
+   nunit={true|false} to include or esclude unit tests (default=true).
+   Also the target clean will remove binaries.
+   Output file (DotZLib.dll) will be found in either ./DotZLib/bin/release
+   or ./DotZLib/bin/debug, depending on whether you are building the release
+   or debug version of the library.
+
+   Examples:
+     nant -D:debug=false -D:nunit=false
+       will build a release mode version of the library without unit tests.
+     nant
+       will build a debug version of the library with unit tests
+     nant clean
+       will remove all previously built files.
+
+
+---------------------------------
+Copyright (c) Henrik Ravn 2004
+
+Use, modification and distribution are subject to the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/gcc_gvmat64/gvmat64.S b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/gcc_gvmat64/gvmat64.S
new file mode 100644
index 000000000..23309fa28
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/gcc_gvmat64/gvmat64.S
@@ -0,0 +1,574 @@
+/*
+;uInt longest_match_x64(
+;    deflate_state *s,
+;    IPos cur_match);                             // current match 
+
+; gvmat64.S -- Asm portion of the optimized longest_match for 32 bits x86_64
+;  (AMD64 on Athlon 64, Opteron, Phenom
+;     and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
+; this file is translation from gvmat64.asm to GCC 4.x (for Linux, Mac XCode)
+; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+;
+; File written by Gilles Vollant, by converting to assembly the longest_match
+;  from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
+;  and by taking inspiration on asm686 with masm, optimised assembly code
+;        from Brian Raiter, written 1998
+;
+;  This software is provided 'as-is', without any express or implied
+;  warranty.  In no event will the authors be held liable for any damages
+;  arising from the use of this software.
+;
+;  Permission is granted to anyone to use this software for any purpose,
+;  including commercial applications, and to alter it and redistribute it
+;  freely, subject to the following restrictions:
+;
+;  1. The origin of this software must not be misrepresented; you must not
+;     claim that you wrote the original software. If you use this software
+;     in a product, an acknowledgment in the product documentation would be
+;     appreciated but is not required.
+;  2. Altered source versions must be plainly marked as such, and must not be
+;     misrepresented as being the original software
+;  3. This notice may not be removed or altered from any source distribution.
+;
+;         http://www.zlib.net
+;         http://www.winimage.com/zLibDll
+;         http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; to compile this file for zLib, I use option:
+;   gcc -c -arch x86_64 gvmat64.S
+
+
+;uInt longest_match(s, cur_match)
+;    deflate_state *s;
+;    IPos cur_match;                             // current match /
+;
+; with XCode for Mac, I had strange error with some jump on intel syntax
+; this is why BEFORE_JMP and AFTER_JMP are used
+ */
+
+
+#define BEFORE_JMP .att_syntax
+#define AFTER_JMP .intel_syntax noprefix
+
+#ifndef NO_UNDERLINE
+#	define	match_init	_match_init
+#	define	longest_match	_longest_match
+#endif
+
+.intel_syntax noprefix
+
+.globl	match_init, longest_match
+.text
+longest_match:
+
+
+
+#define LocalVarsSize 96
+/*
+; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
+; free register :  r14,r15
+; register can be saved : rsp
+*/
+
+#define chainlenwmask     (rsp + 8 - LocalVarsSize)
+#define nicematch         (rsp + 16 - LocalVarsSize)
+
+#define save_rdi        (rsp + 24 - LocalVarsSize)
+#define save_rsi        (rsp + 32 - LocalVarsSize)
+#define save_rbx        (rsp + 40 - LocalVarsSize)
+#define save_rbp        (rsp + 48 - LocalVarsSize)
+#define save_r12        (rsp + 56 - LocalVarsSize)
+#define save_r13        (rsp + 64 - LocalVarsSize)
+#define save_r14        (rsp + 72 - LocalVarsSize)
+#define save_r15        (rsp + 80 - LocalVarsSize)
+
+
+/*
+;  all the +4 offsets are due to the addition of pending_buf_size (in zlib
+;  in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, remove the +4).
+;  Note : these value are good with a 8 bytes boundary pack structure
+*/
+
+#define    MAX_MATCH              258
+#define    MIN_MATCH              3
+#define    MIN_LOOKAHEAD          (MAX_MATCH+MIN_MATCH+1)
+
+/*
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+;  all the +zlib1222add offsets are due to the addition of fields
+;  in zlib in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+;  (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+;  if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+*/
+
+
+
+/* you can check the structure offset by running
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "deflate.h"
+
+void print_depl()
+{
+deflate_state ds;
+deflate_state *s=&ds;
+printf("size pointer=%u\n",(int)sizeof(void*));
+
+printf("#define dsWSize         %u\n",(int)(((char*)&(s->w_size))-((char*)s)));
+printf("#define dsWMask         %u\n",(int)(((char*)&(s->w_mask))-((char*)s)));
+printf("#define dsWindow        %u\n",(int)(((char*)&(s->window))-((char*)s)));
+printf("#define dsPrev          %u\n",(int)(((char*)&(s->prev))-((char*)s)));
+printf("#define dsMatchLen      %u\n",(int)(((char*)&(s->match_length))-((char*)s)));
+printf("#define dsPrevMatch     %u\n",(int)(((char*)&(s->prev_match))-((char*)s)));
+printf("#define dsStrStart      %u\n",(int)(((char*)&(s->strstart))-((char*)s)));
+printf("#define dsMatchStart    %u\n",(int)(((char*)&(s->match_start))-((char*)s)));
+printf("#define dsLookahead     %u\n",(int)(((char*)&(s->lookahead))-((char*)s)));
+printf("#define dsPrevLen       %u\n",(int)(((char*)&(s->prev_length))-((char*)s)));
+printf("#define dsMaxChainLen   %u\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
+printf("#define dsGoodMatch     %u\n",(int)(((char*)&(s->good_match))-((char*)s)));
+printf("#define dsNiceMatch     %u\n",(int)(((char*)&(s->nice_match))-((char*)s)));
+}
+*/
+
+#define dsWSize          68
+#define dsWMask          76
+#define dsWindow         80
+#define dsPrev           96
+#define dsMatchLen       144
+#define dsPrevMatch      148
+#define dsStrStart       156
+#define dsMatchStart     160
+#define dsLookahead      164
+#define dsPrevLen        168
+#define dsMaxChainLen    172
+#define dsGoodMatch      188
+#define dsNiceMatch      192
+
+#define window_size      [ rcx + dsWSize]
+#define WMask            [ rcx + dsWMask]
+#define window_ad        [ rcx + dsWindow]
+#define prev_ad          [ rcx + dsPrev]
+#define strstart         [ rcx + dsStrStart]
+#define match_start      [ rcx + dsMatchStart]
+#define Lookahead        [ rcx + dsLookahead] //; 0ffffffffh on infozip
+#define prev_length      [ rcx + dsPrevLen]
+#define max_chain_length [ rcx + dsMaxChainLen]
+#define good_match       [ rcx + dsGoodMatch]
+#define nice_match       [ rcx + dsNiceMatch]
+
+/*
+; windows:
+; parameter 1 in rcx(deflate state s), param 2 in rdx (cur match)
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+;   rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
+
+;
+; gcc on macosx-linux:
+; see http://www.x86-64.org/documentation/abi-0.99.pdf
+; param 1 in rdi, param 2 in rsi
+; rbx, rsp, rbp, r12 to r15 must be preserved
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+
+;;; Retrieve the function arguments. r8d will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+; ms: parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
+; mac: param 1 in rdi, param 2 rsi
+; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
+*/
+        mov [save_rbx],rbx
+        mov [save_rbp],rbp
+
+
+        mov rcx,rdi
+
+        mov r8d,esi
+
+
+        mov [save_r12],r12
+        mov [save_r13],r13
+        mov [save_r14],r14
+        mov [save_r15],r15
+
+
+//;;; uInt wmask = s->w_mask;
+//;;; unsigned chain_length = s->max_chain_length;
+//;;; if (s->prev_length >= s->good_match) {
+//;;;     chain_length >>= 2;
+//;;; }
+
+
+        mov edi, prev_length
+        mov esi, good_match
+        mov eax, WMask
+        mov ebx, max_chain_length
+        cmp edi, esi
+        jl  LastMatchGood
+        shr ebx, 2
+LastMatchGood:
+
+//;;; chainlen is decremented once beforehand so that the function can
+//;;; use the sign flag instead of the zero flag for the exit test.
+//;;; It is then shifted into the high word, to make room for the wmask
+//;;; value, which it will always accompany.
+
+        dec ebx
+        shl ebx, 16
+        or  ebx, eax
+
+//;;; on zlib only
+//;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+
+
+        mov eax, nice_match
+        mov [chainlenwmask], ebx
+        mov r10d, Lookahead
+        cmp r10d, eax
+        cmovnl r10d, eax
+        mov [nicematch],r10d
+
+
+
+//;;; register Bytef *scan = s->window + s->strstart;
+        mov r10, window_ad
+        mov ebp, strstart
+        lea r13, [r10 + rbp]
+
+//;;; Determine how many bytes the scan ptr is off from being
+//;;; dword-aligned.
+
+         mov r9,r13
+         neg r13
+         and r13,3
+
+//;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+//;;;     s->strstart - (IPos)MAX_DIST(s) : NIL;
+
+
+        mov eax, window_size
+        sub eax, MIN_LOOKAHEAD
+
+
+        xor edi,edi
+        sub ebp, eax
+
+        mov r11d, prev_length
+
+        cmovng ebp,edi
+
+//;;; int best_len = s->prev_length;
+
+
+//;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+       lea  rsi,[r10+r11]
+
+//;;; register ush scan_start = *(ushf*)scan;
+//;;; register ush scan_end   = *(ushf*)(scan+best_len-1);
+//;;; Posf *prev = s->prev;
+
+        movzx r12d,word ptr [r9]
+        movzx ebx, word ptr [r9 + r11 - 1]
+
+        mov rdi, prev_ad
+
+//;;; Jump into the main loop.
+
+        mov edx, [chainlenwmask]
+
+        cmp bx,word ptr [rsi + r8 - 1]
+        jz  LookupLoopIsZero
+				
+						
+						
+LookupLoop1:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+        jbe LeaveNow
+		
+		
+		
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry1:
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jz  LookupLoopIsZero
+		AFTER_JMP
+
+LookupLoop2:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+		BEFORE_JMP
+        jbe LeaveNow
+		AFTER_JMP
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry2:
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jz  LookupLoopIsZero
+		AFTER_JMP
+
+LookupLoop4:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+		BEFORE_JMP
+        jbe LeaveNow
+		AFTER_JMP
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry4:
+
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jnz LookupLoop1
+        jmp LookupLoopIsZero
+		AFTER_JMP
+/*
+;;; do {
+;;;     match = s->window + cur_match;
+;;;     if (*(ushf*)(match+best_len-1) != scan_end ||
+;;;         *(ushf*)match != scan_start) continue;
+;;;     [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;;          && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; r8d = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+*/
+.balign 16
+LookupLoop:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+		BEFORE_JMP
+        jbe LeaveNow
+		AFTER_JMP
+        sub edx, 0x00010000
+		BEFORE_JMP
+        js  LeaveNow
+		AFTER_JMP
+
+LoopEntry:
+
+        cmp bx,word ptr [rsi + r8 - 1]
+		BEFORE_JMP
+        jnz LookupLoop1
+		AFTER_JMP
+LookupLoopIsZero:
+        cmp     r12w, word ptr [r10 + r8]
+		BEFORE_JMP
+        jnz LookupLoop1
+		AFTER_JMP
+
+
+//;;; Store the current value of chainlen.
+        mov [chainlenwmask], edx
+/*
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+*/
+        lea rsi,[r8+r10]
+        mov rdx, 0xfffffffffffffef8 //; -(MAX_MATCH_8)
+        lea rsi, [rsi + r13 + 0x0108] //;MAX_MATCH_8]
+        lea rdi, [r9 + r13 + 0x0108] //;MAX_MATCH_8]
+
+        prefetcht1 [rsi+rdx]
+        prefetcht1 [rdi+rdx]
+
+/*
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust rdx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (rsi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+*/
+
+LoopCmps:
+        mov rax, [rsi + rdx]
+        xor rax, [rdi + rdx]
+        jnz LeaveLoopCmps
+
+        mov rax, [rsi + rdx + 8]
+        xor rax, [rdi + rdx + 8]
+        jnz LeaveLoopCmps8
+
+
+        mov rax, [rsi + rdx + 8+8]
+        xor rax, [rdi + rdx + 8+8]
+        jnz LeaveLoopCmps16
+
+        add rdx,8+8+8
+
+		BEFORE_JMP
+        jnz  LoopCmps
+        jmp  LenMaximum
+		AFTER_JMP
+		
+LeaveLoopCmps16: add rdx,8
+LeaveLoopCmps8: add rdx,8
+LeaveLoopCmps:
+
+        test    eax, 0x0000FFFF
+        jnz LenLower
+
+        test eax,0xffffffff
+
+        jnz LenLower32
+
+        add rdx,4
+        shr rax,32
+        or ax,ax
+		BEFORE_JMP
+        jnz LenLower
+		AFTER_JMP
+
+LenLower32:
+        shr eax,16
+        add rdx,2
+		
+LenLower:		
+        sub al, 1
+        adc rdx, 0
+//;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+//;;; then automatically accept it as the best possible match and leave.
+
+        lea rax, [rdi + rdx]
+        sub rax, r9
+        cmp eax, MAX_MATCH
+		BEFORE_JMP
+        jge LenMaximum
+		AFTER_JMP
+/*
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+;///////////////////////////////////
+*/
+        cmp eax, r11d
+        jg  LongerMatch
+
+        lea rsi,[r10+r11]
+
+        mov rdi, prev_ad
+        mov edx, [chainlenwmask]
+		BEFORE_JMP
+        jmp LookupLoop
+		AFTER_JMP
+/*
+;;;         s->match_start = cur_match;
+;;;         best_len = len;
+;;;         if (len >= nice_match) break;
+;;;         scan_end = *(ushf*)(scan+best_len-1);
+*/
+LongerMatch:
+        mov r11d, eax
+        mov match_start, r8d
+        cmp eax, [nicematch]
+		BEFORE_JMP
+        jge LeaveNow
+		AFTER_JMP
+
+        lea rsi,[r10+rax]
+
+        movzx   ebx, word ptr [r9 + rax - 1]
+        mov rdi, prev_ad
+        mov edx, [chainlenwmask]
+		BEFORE_JMP
+        jmp LookupLoop
+		AFTER_JMP
+
+//;;; Accept the current string, with the maximum possible length.
+
+LenMaximum:
+        mov r11d,MAX_MATCH
+        mov match_start, r8d
+
+//;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+//;;; return s->lookahead;
+
+LeaveNow:
+        mov eax, Lookahead
+        cmp r11d, eax
+        cmovng eax, r11d
+
+
+
+//;;; Restore the stack and return from whence we came.
+
+
+//        mov rsi,[save_rsi]
+//        mov rdi,[save_rdi]
+        mov rbx,[save_rbx]
+        mov rbp,[save_rbp]
+        mov r12,[save_r12]
+        mov r13,[save_r13]
+        mov r14,[save_r14]
+        mov r15,[save_r15]
+
+
+        ret 0
+//; please don't remove this string !
+//; Your can freely use gvmat64 in any free or commercial app
+//; but it is far better don't remove the string in the binary!
+ //   db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
+
+
+match_init:
+  ret 0
+
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/README
new file mode 100644
index 000000000..e75ed1329
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/README
@@ -0,0 +1 @@
+See infback9.h for what this is and how to use it.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/infback9.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/infback9.c
new file mode 100644
index 000000000..05fb3e338
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/infback9.c
@@ -0,0 +1,615 @@
+/* infback9.c -- inflate deflate64 data using a call-back interface
+ * Copyright (C) 1995-2008 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "infback9.h"
+#include "inftree9.h"
+#include "inflate9.h"
+
+#define WSIZE 65536UL
+
+/*
+   strm provides memory allocation functions in zalloc and zfree, or
+   Z_NULL to use the library memory allocation functions.
+
+   window is a user-supplied window and output buffer that is 64K bytes.
+ */
+int ZEXPORT inflateBack9Init_(strm, window, version, stream_size)
+z_stream FAR *strm;
+unsigned char FAR *window;
+const char *version;
+int stream_size;
+{
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL || window == Z_NULL)
+        return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+    }
+    if (strm->zfree == (free_func)0) strm->zfree = zcfree;
+    state = (struct inflate_state FAR *)ZALLOC(strm, 1,
+                                               sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (voidpf)state;
+    state->window = window;
+    return Z_OK;
+}
+
+/*
+   Build and output length and distance decoding tables for fixed code
+   decoding.
+ */
+#ifdef MAKEFIXED
+#include <stdio.h>
+
+void makefixed9(void)
+{
+    unsigned sym, bits, low, size;
+    code *next, *lenfix, *distfix;
+    struct inflate_state state;
+    code fixed[544];
+
+    /* literal/length table */
+    sym = 0;
+    while (sym < 144) state.lens[sym++] = 8;
+    while (sym < 256) state.lens[sym++] = 9;
+    while (sym < 280) state.lens[sym++] = 7;
+    while (sym < 288) state.lens[sym++] = 8;
+    next = fixed;
+    lenfix = next;
+    bits = 9;
+    inflate_table9(LENS, state.lens, 288, &(next), &(bits), state.work);
+
+    /* distance table */
+    sym = 0;
+    while (sym < 32) state.lens[sym++] = 5;
+    distfix = next;
+    bits = 5;
+    inflate_table9(DISTS, state.lens, 32, &(next), &(bits), state.work);
+
+    /* write tables */
+    puts("    /* inffix9.h -- table for decoding deflate64 fixed codes");
+    puts("     * Generated automatically by makefixed9().");
+    puts("     */");
+    puts("");
+    puts("    /* WARNING: this file should *not* be used by applications.");
+    puts("       It is part of the implementation of this library and is");
+    puts("       subject to change. Applications should only use zlib.h.");
+    puts("     */");
+    puts("");
+    size = 1U << 9;
+    printf("    static const code lenfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 6) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", lenfix[low].op, lenfix[low].bits,
+               lenfix[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+    size = 1U << 5;
+    printf("\n    static const code distfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 5) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", distfix[low].op, distfix[low].bits,
+               distfix[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+}
+#endif /* MAKEFIXED */
+
+/* Macros for inflateBack(): */
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Assure that some input is available.  If input is requested, but denied,
+   then return a Z_BUF_ERROR from inflateBack(). */
+#define PULL() \
+    do { \
+        if (have == 0) { \
+            have = in(in_desc, &next); \
+            if (have == 0) { \
+                next = Z_NULL; \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflateBack()
+   with an error if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        PULL(); \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflateBack() with
+   an error. */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n <= 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/* Assure that some output space is available, by writing out the window
+   if it's full.  If the write fails, return from inflateBack() with a
+   Z_BUF_ERROR. */
+#define ROOM() \
+    do { \
+        if (left == 0) { \
+            put = window; \
+            left = WSIZE; \
+            wrap = 1; \
+            if (out(out_desc, put, (unsigned)left)) { \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/*
+   strm provides the memory allocation functions and window buffer on input,
+   and provides information on the unused input on return.  For Z_DATA_ERROR
+   returns, strm will also provide an error message.
+
+   in() and out() are the call-back input and output functions.  When
+   inflateBack() needs more input, it calls in().  When inflateBack() has
+   filled the window with output, or when it completes with data in the
+   window, it calls out() to write out the data.  The application must not
+   change the provided input until in() is called again or inflateBack()
+   returns.  The application must not change the window/output buffer until
+   inflateBack() returns.
+
+   in() and out() are called with a descriptor parameter provided in the
+   inflateBack() call.  This parameter can be a structure that provides the
+   information required to do the read or write, as well as accumulated
+   information on the input and output such as totals and check values.
+
+   in() should return zero on failure.  out() should return non-zero on
+   failure.  If either in() or out() fails, than inflateBack() returns a
+   Z_BUF_ERROR.  strm->next_in can be checked for Z_NULL to see whether it
+   was in() or out() that caused in the error.  Otherwise,  inflateBack()
+   returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
+   error, or Z_MEM_ERROR if it could not allocate memory for the state.
+   inflateBack() can also return Z_STREAM_ERROR if the input parameters
+   are not correct, i.e. strm is Z_NULL or the state was not initialized.
+ */
+int ZEXPORT inflateBack9(strm, in, in_desc, out, out_desc)
+z_stream FAR *strm;
+in_func in;
+void FAR *in_desc;
+out_func out;
+void FAR *out_desc;
+{
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have;              /* available input */
+    unsigned long left;         /* available output */
+    inflate_mode mode;          /* current inflate mode */
+    int lastblock;              /* true if processing last block */
+    int wrap;                   /* true if the window has wrapped */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned extra;             /* extra bits needed */
+    unsigned long length;       /* literal or length of data to copy */
+    unsigned long offset;       /* distance back to copy string from */
+    unsigned long copy;         /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code const FAR *lencode;    /* starting table for length/literal codes */
+    code const FAR *distcode;   /* starting table for distance codes */
+    unsigned lenbits;           /* index bits for lencode */
+    unsigned distbits;          /* index bits for distcode */
+    code here;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+#include "inffix9.h"
+
+    /* Check that the strm exists and that the state was initialized */
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* Reset the state */
+    strm->msg = Z_NULL;
+    mode = TYPE;
+    lastblock = 0;
+    wrap = 0;
+    window = state->window;
+    next = strm->next_in;
+    have = next != Z_NULL ? strm->avail_in : 0;
+    hold = 0;
+    bits = 0;
+    put = window;
+    left = WSIZE;
+    lencode = Z_NULL;
+    distcode = Z_NULL;
+
+    /* Inflate until end of block marked as last */
+    for (;;)
+        switch (mode) {
+        case TYPE:
+            /* determine and dispatch block type */
+            if (lastblock) {
+                BYTEBITS();
+                mode = DONE;
+                break;
+            }
+            NEEDBITS(3);
+            lastblock = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                lencode = lenfix;
+                lenbits = 9;
+                distcode = distfix;
+                distbits = 5;
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = LEN;                     /* decode codes */
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        lastblock ? " (last)" : ""));
+                mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+
+        case STORED:
+            /* get and verify stored block length */
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                mode = BAD;
+                break;
+            }
+            length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %lu\n",
+                    length));
+            INITBITS();
+
+            /* copy stored block from input to output */
+            while (length != 0) {
+                copy = length;
+                PULL();
+                ROOM();
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                length -= copy;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            mode = TYPE;
+            break;
+
+        case TABLE:
+            /* get dynamic table entries descriptor */
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+            if (state->nlen > 286) {
+                strm->msg = (char *)"too many length symbols";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+
+            /* get code length code lengths (not a typo) */
+            state->have = 0;
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            lencode = (code const FAR *)(state->next);
+            lenbits = 7;
+            ret = inflate_table9(CODES, state->lens, 19, &(state->next),
+                                &(lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+
+            /* get length and distance code code lengths */
+            state->have = 0;
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    here = lencode[BITS(lenbits)];
+                    if ((unsigned)(here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (here.val < 16) {
+                    NEEDBITS(here.bits);
+                    DROPBITS(here.bits);
+                    state->lens[state->have++] = here.val;
+                }
+                else {
+                    if (here.val == 16) {
+                        NEEDBITS(here.bits + 2);
+                        DROPBITS(here.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            mode = BAD;
+                            break;
+                        }
+                        len = (unsigned)(state->lens[state->have - 1]);
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (here.val == 17) {
+                        NEEDBITS(here.bits + 3);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(here.bits + 7);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* handle error breaks in while */
+            if (mode == BAD) break;
+
+            /* check for end-of-block code (better have one) */
+            if (state->lens[256] == 0) {
+                strm->msg = (char *)"invalid code -- missing end-of-block";
+                mode = BAD;
+                break;
+            }
+
+            /* build code tables -- note: do not change the lenbits or distbits
+               values here (9 and 6) without reading the comments in inftree9.h
+               concerning the ENOUGH constants, which depend on those values */
+            state->next = state->codes;
+            lencode = (code const FAR *)(state->next);
+            lenbits = 9;
+            ret = inflate_table9(LENS, state->lens, state->nlen,
+                            &(state->next), &(lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                mode = BAD;
+                break;
+            }
+            distcode = (code const FAR *)(state->next);
+            distbits = 6;
+            ret = inflate_table9(DISTS, state->lens + state->nlen,
+                            state->ndist, &(state->next), &(distbits),
+                            state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            mode = LEN;
+
+        case LEN:
+            /* get a literal, length, or end-of-block code */
+            for (;;) {
+                here = lencode[BITS(lenbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (here.op && (here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            length = (unsigned)here.val;
+
+            /* process literal */
+            if (here.op == 0) {
+                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", here.val));
+                ROOM();
+                *put++ = (unsigned char)(length);
+                left--;
+                mode = LEN;
+                break;
+            }
+
+            /* process end of block */
+            if (here.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                mode = TYPE;
+                break;
+            }
+
+            /* invalid code */
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                mode = BAD;
+                break;
+            }
+
+            /* length code -- get extra bits, if any */
+            extra = (unsigned)(here.op) & 31;
+            if (extra != 0) {
+                NEEDBITS(extra);
+                length += BITS(extra);
+                DROPBITS(extra);
+            }
+            Tracevv((stderr, "inflate:         length %lu\n", length));
+
+            /* get distance code */
+            for (;;) {
+                here = distcode[BITS(distbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                mode = BAD;
+                break;
+            }
+            offset = (unsigned)here.val;
+
+            /* get distance extra bits, if any */
+            extra = (unsigned)(here.op) & 15;
+            if (extra != 0) {
+                NEEDBITS(extra);
+                offset += BITS(extra);
+                DROPBITS(extra);
+            }
+            if (offset > WSIZE - (wrap ? 0: left)) {
+                strm->msg = (char *)"invalid distance too far back";
+                mode = BAD;
+                break;
+            }
+            Tracevv((stderr, "inflate:         distance %lu\n", offset));
+
+            /* copy match from window to output */
+            do {
+                ROOM();
+                copy = WSIZE - offset;
+                if (copy < left) {
+                    from = put + copy;
+                    copy = left - copy;
+                }
+                else {
+                    from = put - offset;
+                    copy = left;
+                }
+                if (copy > length) copy = length;
+                length -= copy;
+                left -= copy;
+                do {
+                    *put++ = *from++;
+                } while (--copy);
+            } while (length != 0);
+            break;
+
+        case DONE:
+            /* inflate stream terminated properly -- write leftover output */
+            ret = Z_STREAM_END;
+            if (left < WSIZE) {
+                if (out(out_desc, window, (unsigned)(WSIZE - left)))
+                    ret = Z_BUF_ERROR;
+            }
+            goto inf_leave;
+
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+
+        default:                /* can't happen, but makes compilers happy */
+            ret = Z_STREAM_ERROR;
+            goto inf_leave;
+        }
+
+    /* Return unused input */
+  inf_leave:
+    strm->next_in = next;
+    strm->avail_in = have;
+    return ret;
+}
+
+int ZEXPORT inflateBack9End(strm)
+z_stream FAR *strm;
+{
+    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+        return Z_STREAM_ERROR;
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/infback9.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/infback9.h
new file mode 100644
index 000000000..1073c0a38
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/infback9.h
@@ -0,0 +1,37 @@
+/* infback9.h -- header for using inflateBack9 functions
+ * Copyright (C) 2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * This header file and associated patches provide a decoder for PKWare's
+ * undocumented deflate64 compression method (method 9).  Use with infback9.c,
+ * inftree9.h, inftree9.c, and inffix9.h.  These patches are not supported.
+ * This should be compiled with zlib, since it uses zutil.h and zutil.o.
+ * This code has not yet been tested on 16-bit architectures.  See the
+ * comments in zlib.h for inflateBack() usage.  These functions are used
+ * identically, except that there is no windowBits parameter, and a 64K
+ * window must be provided.  Also if int's are 16 bits, then a zero for
+ * the third parameter of the "out" function actually means 65536UL.
+ * zlib.h must be included before this header file.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+ZEXTERN int ZEXPORT inflateBack9 OF((z_stream FAR *strm,
+                                    in_func in, void FAR *in_desc,
+                                    out_func out, void FAR *out_desc));
+ZEXTERN int ZEXPORT inflateBack9End OF((z_stream FAR *strm));
+ZEXTERN int ZEXPORT inflateBack9Init_ OF((z_stream FAR *strm,
+                                         unsigned char FAR *window,
+                                         const char *version,
+                                         int stream_size));
+#define inflateBack9Init(strm, window) \
+        inflateBack9Init_((strm), (window), \
+        ZLIB_VERSION, sizeof(z_stream))
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inffix9.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inffix9.h
new file mode 100644
index 000000000..ee5671d2d
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inffix9.h
@@ -0,0 +1,107 @@
+    /* inffix9.h -- table for decoding deflate64 fixed codes
+     * Generated automatically by makefixed9().
+     */
+
+    /* WARNING: this file should *not* be used by applications.
+       It is part of the implementation of this library and is
+       subject to change. Applications should only use zlib.h.
+     */
+
+    static const code lenfix[512] = {
+        {96,7,0},{0,8,80},{0,8,16},{132,8,115},{130,7,31},{0,8,112},
+        {0,8,48},{0,9,192},{128,7,10},{0,8,96},{0,8,32},{0,9,160},
+        {0,8,0},{0,8,128},{0,8,64},{0,9,224},{128,7,6},{0,8,88},
+        {0,8,24},{0,9,144},{131,7,59},{0,8,120},{0,8,56},{0,9,208},
+        {129,7,17},{0,8,104},{0,8,40},{0,9,176},{0,8,8},{0,8,136},
+        {0,8,72},{0,9,240},{128,7,4},{0,8,84},{0,8,20},{133,8,227},
+        {131,7,43},{0,8,116},{0,8,52},{0,9,200},{129,7,13},{0,8,100},
+        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},
+        {128,7,8},{0,8,92},{0,8,28},{0,9,152},{132,7,83},{0,8,124},
+        {0,8,60},{0,9,216},{130,7,23},{0,8,108},{0,8,44},{0,9,184},
+        {0,8,12},{0,8,140},{0,8,76},{0,9,248},{128,7,3},{0,8,82},
+        {0,8,18},{133,8,163},{131,7,35},{0,8,114},{0,8,50},{0,9,196},
+        {129,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},{0,8,130},
+        {0,8,66},{0,9,228},{128,7,7},{0,8,90},{0,8,26},{0,9,148},
+        {132,7,67},{0,8,122},{0,8,58},{0,9,212},{130,7,19},{0,8,106},
+        {0,8,42},{0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},
+        {128,7,5},{0,8,86},{0,8,22},{65,8,0},{131,7,51},{0,8,118},
+        {0,8,54},{0,9,204},{129,7,15},{0,8,102},{0,8,38},{0,9,172},
+        {0,8,6},{0,8,134},{0,8,70},{0,9,236},{128,7,9},{0,8,94},
+        {0,8,30},{0,9,156},{132,7,99},{0,8,126},{0,8,62},{0,9,220},
+        {130,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
+        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{133,8,131},
+        {130,7,31},{0,8,113},{0,8,49},{0,9,194},{128,7,10},{0,8,97},
+        {0,8,33},{0,9,162},{0,8,1},{0,8,129},{0,8,65},{0,9,226},
+        {128,7,6},{0,8,89},{0,8,25},{0,9,146},{131,7,59},{0,8,121},
+        {0,8,57},{0,9,210},{129,7,17},{0,8,105},{0,8,41},{0,9,178},
+        {0,8,9},{0,8,137},{0,8,73},{0,9,242},{128,7,4},{0,8,85},
+        {0,8,21},{144,8,3},{131,7,43},{0,8,117},{0,8,53},{0,9,202},
+        {129,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},
+        {0,8,69},{0,9,234},{128,7,8},{0,8,93},{0,8,29},{0,9,154},
+        {132,7,83},{0,8,125},{0,8,61},{0,9,218},{130,7,23},{0,8,109},
+        {0,8,45},{0,9,186},{0,8,13},{0,8,141},{0,8,77},{0,9,250},
+        {128,7,3},{0,8,83},{0,8,19},{133,8,195},{131,7,35},{0,8,115},
+        {0,8,51},{0,9,198},{129,7,11},{0,8,99},{0,8,35},{0,9,166},
+        {0,8,3},{0,8,131},{0,8,67},{0,9,230},{128,7,7},{0,8,91},
+        {0,8,27},{0,9,150},{132,7,67},{0,8,123},{0,8,59},{0,9,214},
+        {130,7,19},{0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},
+        {0,8,75},{0,9,246},{128,7,5},{0,8,87},{0,8,23},{77,8,0},
+        {131,7,51},{0,8,119},{0,8,55},{0,9,206},{129,7,15},{0,8,103},
+        {0,8,39},{0,9,174},{0,8,7},{0,8,135},{0,8,71},{0,9,238},
+        {128,7,9},{0,8,95},{0,8,31},{0,9,158},{132,7,99},{0,8,127},
+        {0,8,63},{0,9,222},{130,7,27},{0,8,111},{0,8,47},{0,9,190},
+        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},
+        {0,8,16},{132,8,115},{130,7,31},{0,8,112},{0,8,48},{0,9,193},
+        {128,7,10},{0,8,96},{0,8,32},{0,9,161},{0,8,0},{0,8,128},
+        {0,8,64},{0,9,225},{128,7,6},{0,8,88},{0,8,24},{0,9,145},
+        {131,7,59},{0,8,120},{0,8,56},{0,9,209},{129,7,17},{0,8,104},
+        {0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},{0,9,241},
+        {128,7,4},{0,8,84},{0,8,20},{133,8,227},{131,7,43},{0,8,116},
+        {0,8,52},{0,9,201},{129,7,13},{0,8,100},{0,8,36},{0,9,169},
+        {0,8,4},{0,8,132},{0,8,68},{0,9,233},{128,7,8},{0,8,92},
+        {0,8,28},{0,9,153},{132,7,83},{0,8,124},{0,8,60},{0,9,217},
+        {130,7,23},{0,8,108},{0,8,44},{0,9,185},{0,8,12},{0,8,140},
+        {0,8,76},{0,9,249},{128,7,3},{0,8,82},{0,8,18},{133,8,163},
+        {131,7,35},{0,8,114},{0,8,50},{0,9,197},{129,7,11},{0,8,98},
+        {0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
+        {128,7,7},{0,8,90},{0,8,26},{0,9,149},{132,7,67},{0,8,122},
+        {0,8,58},{0,9,213},{130,7,19},{0,8,106},{0,8,42},{0,9,181},
+        {0,8,10},{0,8,138},{0,8,74},{0,9,245},{128,7,5},{0,8,86},
+        {0,8,22},{65,8,0},{131,7,51},{0,8,118},{0,8,54},{0,9,205},
+        {129,7,15},{0,8,102},{0,8,38},{0,9,173},{0,8,6},{0,8,134},
+        {0,8,70},{0,9,237},{128,7,9},{0,8,94},{0,8,30},{0,9,157},
+        {132,7,99},{0,8,126},{0,8,62},{0,9,221},{130,7,27},{0,8,110},
+        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},
+        {96,7,0},{0,8,81},{0,8,17},{133,8,131},{130,7,31},{0,8,113},
+        {0,8,49},{0,9,195},{128,7,10},{0,8,97},{0,8,33},{0,9,163},
+        {0,8,1},{0,8,129},{0,8,65},{0,9,227},{128,7,6},{0,8,89},
+        {0,8,25},{0,9,147},{131,7,59},{0,8,121},{0,8,57},{0,9,211},
+        {129,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},{0,8,137},
+        {0,8,73},{0,9,243},{128,7,4},{0,8,85},{0,8,21},{144,8,3},
+        {131,7,43},{0,8,117},{0,8,53},{0,9,203},{129,7,13},{0,8,101},
+        {0,8,37},{0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},
+        {128,7,8},{0,8,93},{0,8,29},{0,9,155},{132,7,83},{0,8,125},
+        {0,8,61},{0,9,219},{130,7,23},{0,8,109},{0,8,45},{0,9,187},
+        {0,8,13},{0,8,141},{0,8,77},{0,9,251},{128,7,3},{0,8,83},
+        {0,8,19},{133,8,195},{131,7,35},{0,8,115},{0,8,51},{0,9,199},
+        {129,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
+        {0,8,67},{0,9,231},{128,7,7},{0,8,91},{0,8,27},{0,9,151},
+        {132,7,67},{0,8,123},{0,8,59},{0,9,215},{130,7,19},{0,8,107},
+        {0,8,43},{0,9,183},{0,8,11},{0,8,139},{0,8,75},{0,9,247},
+        {128,7,5},{0,8,87},{0,8,23},{77,8,0},{131,7,51},{0,8,119},
+        {0,8,55},{0,9,207},{129,7,15},{0,8,103},{0,8,39},{0,9,175},
+        {0,8,7},{0,8,135},{0,8,71},{0,9,239},{128,7,9},{0,8,95},
+        {0,8,31},{0,9,159},{132,7,99},{0,8,127},{0,8,63},{0,9,223},
+        {130,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},
+        {0,8,79},{0,9,255}
+    };
+
+    static const code distfix[32] = {
+        {128,5,1},{135,5,257},{131,5,17},{139,5,4097},{129,5,5},
+        {137,5,1025},{133,5,65},{141,5,16385},{128,5,3},{136,5,513},
+        {132,5,33},{140,5,8193},{130,5,9},{138,5,2049},{134,5,129},
+        {142,5,32769},{128,5,2},{135,5,385},{131,5,25},{139,5,6145},
+        {129,5,7},{137,5,1537},{133,5,97},{141,5,24577},{128,5,4},
+        {136,5,769},{132,5,49},{140,5,12289},{130,5,13},{138,5,3073},
+        {134,5,193},{142,5,49153}
+    };
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inflate9.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inflate9.h
new file mode 100644
index 000000000..ee9a79394
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inflate9.h
@@ -0,0 +1,47 @@
+/* inflate9.h -- internal inflate state definition
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Possible inflate modes between inflate() calls */
+typedef enum {
+        TYPE,       /* i: waiting for type bits, including last-flag bit */
+        STORED,     /* i: waiting for stored size (length and complement) */
+        TABLE,      /* i: waiting for dynamic block table lengths */
+            LEN,        /* i: waiting for length/lit code */
+    DONE,       /* finished check, done -- remain here until reset */
+    BAD         /* got a data error -- remain here until reset */
+} inflate_mode;
+
+/*
+    State transitions between above modes -
+
+    (most modes can go to the BAD mode -- not shown for clarity)
+
+    Read deflate blocks:
+            TYPE -> STORED or TABLE or LEN or DONE
+            STORED -> TYPE
+            TABLE -> LENLENS -> CODELENS -> LEN
+    Read deflate codes:
+                LEN -> LEN or TYPE
+ */
+
+/* state maintained between inflate() calls.  Approximately 7K bytes. */
+struct inflate_state {
+        /* sliding window */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+        /* dynamic table building */
+    unsigned ncode;             /* number of code length code lengths */
+    unsigned nlen;              /* number of length code lengths */
+    unsigned ndist;             /* number of distance code lengths */
+    unsigned have;              /* number of code lengths in lens[] */
+    code FAR *next;             /* next available space in codes[] */
+    unsigned short lens[320];   /* temporary storage for code lengths */
+    unsigned short work[288];   /* work area for code table building */
+    code codes[ENOUGH];         /* space for code tables */
+};
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inftree9.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inftree9.c
new file mode 100644
index 000000000..5f4a76798
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inftree9.c
@@ -0,0 +1,324 @@
+/* inftree9.c -- generate Huffman trees for efficient decoding
+ * Copyright (C) 1995-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftree9.h"
+
+#define MAXBITS 15
+
+const char inflate9_copyright[] =
+   " inflate9 1.2.11 Copyright 1995-2017 Mark Adler ";
+/*
+  If you use the zlib library in a product, an acknowledgment is welcome
+  in the documentation of your product. If for some reason you cannot
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+/*
+   Build a set of tables to decode the provided canonical Huffman code.
+   The code lengths are lens[0..codes-1].  The result starts at *table,
+   whose indices are 0..2^bits-1.  work is a writable array of at least
+   lens shorts, which is used as a work area.  type is the type of code
+   to be generated, CODES, LENS, or DISTS.  On return, zero is success,
+   -1 is an invalid code, and +1 means that ENOUGH isn't enough.  table
+   on return points to the next available entry's address.  bits is the
+   requested root table index bits, and on return it is the actual root
+   table index bits.  It will differ if the request is greater than the
+   longest code or if it is less than the shortest code.
+ */
+int inflate_table9(type, lens, codes, table, bits, work)
+codetype type;
+unsigned short FAR *lens;
+unsigned codes;
+code FAR * FAR *table;
+unsigned FAR *bits;
+unsigned short FAR *work;
+{
+    unsigned len;               /* a code's length in bits */
+    unsigned sym;               /* index of code symbols */
+    unsigned min, max;          /* minimum and maximum code lengths */
+    unsigned root;              /* number of index bits for root table */
+    unsigned curr;              /* number of index bits for current table */
+    unsigned drop;              /* code bits to drop for sub-table */
+    int left;                   /* number of prefix codes available */
+    unsigned used;              /* code entries in table used */
+    unsigned huff;              /* Huffman code */
+    unsigned incr;              /* for incrementing code, index */
+    unsigned fill;              /* index for replicating entries */
+    unsigned low;               /* low bits for current root entry */
+    unsigned mask;              /* mask for low root bits */
+    code this;                  /* table entry for duplication */
+    code FAR *next;             /* next available space in table */
+    const unsigned short FAR *base;     /* base value table to use */
+    const unsigned short FAR *extra;    /* extra bits table to use */
+    int end;                    /* use base and extra for symbol > end */
+    unsigned short count[MAXBITS+1];    /* number of codes of each length */
+    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
+    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17,
+        19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115,
+        131, 163, 195, 227, 3, 0, 0};
+    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
+        128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
+        130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
+        133, 133, 133, 133, 144, 77, 202};
+    static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
+        65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,
+        4097, 6145, 8193, 12289, 16385, 24577, 32769, 49153};
+    static const unsigned short dext[32] = { /* Distance codes 0..31 extra */
+        128, 128, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132,
+        133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138,
+        139, 139, 140, 140, 141, 141, 142, 142};
+
+    /*
+       Process a set of code lengths to create a canonical Huffman code.  The
+       code lengths are lens[0..codes-1].  Each length corresponds to the
+       symbols 0..codes-1.  The Huffman code is generated by first sorting the
+       symbols by length from short to long, and retaining the symbol order
+       for codes with equal lengths.  Then the code starts with all zero bits
+       for the first code of the shortest length, and the codes are integer
+       increments for the same length, and zeros are appended as the length
+       increases.  For the deflate format, these bits are stored backwards
+       from their more natural integer increment ordering, and so when the
+       decoding tables are built in the large loop below, the integer codes
+       are incremented backwards.
+
+       This routine assumes, but does not check, that all of the entries in
+       lens[] are in the range 0..MAXBITS.  The caller must assure this.
+       1..MAXBITS is interpreted as that code length.  zero means that that
+       symbol does not occur in this code.
+
+       The codes are sorted by computing a count of codes for each length,
+       creating from that a table of starting indices for each length in the
+       sorted table, and then entering the symbols in order in the sorted
+       table.  The sorted table is work[], with that space being provided by
+       the caller.
+
+       The length counts are used for other purposes as well, i.e. finding
+       the minimum and maximum length codes, determining if there are any
+       codes at all, checking for a valid set of lengths, and looking ahead
+       at length counts to determine sub-table sizes when building the
+       decoding tables.
+     */
+
+    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+    for (len = 0; len <= MAXBITS; len++)
+        count[len] = 0;
+    for (sym = 0; sym < codes; sym++)
+        count[lens[sym]]++;
+
+    /* bound code lengths, force root to be within code lengths */
+    root = *bits;
+    for (max = MAXBITS; max >= 1; max--)
+        if (count[max] != 0) break;
+    if (root > max) root = max;
+    if (max == 0) return -1;            /* no codes! */
+    for (min = 1; min <= MAXBITS; min++)
+        if (count[min] != 0) break;
+    if (root < min) root = min;
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;
+        left -= count[len];
+        if (left < 0) return -1;        /* over-subscribed */
+    }
+    if (left > 0 && (type == CODES || max != 1))
+        return -1;                      /* incomplete set */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + count[len];
+
+    /* sort symbols by length, by symbol order within each length */
+    for (sym = 0; sym < codes; sym++)
+        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
+
+    /*
+       Create and fill in decoding tables.  In this loop, the table being
+       filled is at next and has curr index bits.  The code being used is huff
+       with length len.  That code is converted to an index by dropping drop
+       bits off of the bottom.  For codes where len is less than drop + curr,
+       those top drop + curr - len bits are incremented through all values to
+       fill the table with replicated entries.
+
+       root is the number of index bits for the root table.  When len exceeds
+       root, sub-tables are created pointed to by the root entry with an index
+       of the low root bits of huff.  This is saved in low to check for when a
+       new sub-table should be started.  drop is zero when the root table is
+       being filled, and drop is root when sub-tables are being filled.
+
+       When a new sub-table is needed, it is necessary to look ahead in the
+       code lengths to determine what size sub-table is needed.  The length
+       counts are used for this, and so count[] is decremented as codes are
+       entered in the tables.
+
+       used keeps track of how many table entries have been allocated from the
+       provided *table space.  It is checked for LENS and DIST tables against
+       the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+       the initial root table size constants.  See the comments in inftree9.h
+       for more information.
+
+       sym increments through all symbols, and the loop terminates when
+       all codes of length max, i.e. all codes, have been processed.  This
+       routine permits incomplete codes, so another loop after this one fills
+       in the rest of the decoding tables with invalid code markers.
+     */
+
+    /* set up for code type */
+    switch (type) {
+    case CODES:
+        base = extra = work;    /* dummy value--not used */
+        end = 19;
+        break;
+    case LENS:
+        base = lbase;
+        base -= 257;
+        extra = lext;
+        extra -= 257;
+        end = 256;
+        break;
+    default:            /* DISTS */
+        base = dbase;
+        extra = dext;
+        end = -1;
+    }
+
+    /* initialize state for loop */
+    huff = 0;                   /* starting code */
+    sym = 0;                    /* starting code symbol */
+    len = min;                  /* starting code length */
+    next = *table;              /* current table to fill in */
+    curr = root;                /* current table index bits */
+    drop = 0;                   /* current bits to drop from code for index */
+    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
+    used = 1U << root;          /* use root table entries */
+    mask = used - 1;            /* mask for comparing low */
+
+    /* check available table space */
+    if ((type == LENS && used >= ENOUGH_LENS) ||
+        (type == DISTS && used >= ENOUGH_DISTS))
+        return 1;
+
+    /* process all codes and make table entries */
+    for (;;) {
+        /* create table entry */
+        this.bits = (unsigned char)(len - drop);
+        if ((int)(work[sym]) < end) {
+            this.op = (unsigned char)0;
+            this.val = work[sym];
+        }
+        else if ((int)(work[sym]) > end) {
+            this.op = (unsigned char)(extra[work[sym]]);
+            this.val = base[work[sym]];
+        }
+        else {
+            this.op = (unsigned char)(32 + 64);         /* end of block */
+            this.val = 0;
+        }
+
+        /* replicate for those indices with low len bits equal to huff */
+        incr = 1U << (len - drop);
+        fill = 1U << curr;
+        do {
+            fill -= incr;
+            next[(huff >> drop) + fill] = this;
+        } while (fill != 0);
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+
+        /* go to next symbol, update count, len */
+        sym++;
+        if (--(count[len]) == 0) {
+            if (len == max) break;
+            len = lens[work[sym]];
+        }
+
+        /* create new sub-table if needed */
+        if (len > root && (huff & mask) != low) {
+            /* if first time, transition to sub-tables */
+            if (drop == 0)
+                drop = root;
+
+            /* increment past last table */
+            next += 1U << curr;
+
+            /* determine length of next table */
+            curr = len - drop;
+            left = (int)(1 << curr);
+            while (curr + drop < max) {
+                left -= count[curr + drop];
+                if (left <= 0) break;
+                curr++;
+                left <<= 1;
+            }
+
+            /* check for enough space */
+            used += 1U << curr;
+            if ((type == LENS && used >= ENOUGH_LENS) ||
+                (type == DISTS && used >= ENOUGH_DISTS))
+                return 1;
+
+            /* point entry in root table to sub-table */
+            low = huff & mask;
+            (*table)[low].op = (unsigned char)curr;
+            (*table)[low].bits = (unsigned char)root;
+            (*table)[low].val = (unsigned short)(next - *table);
+        }
+    }
+
+    /*
+       Fill in rest of table for incomplete codes.  This loop is similar to the
+       loop above in incrementing huff for table indices.  It is assumed that
+       len is equal to curr + drop, so there is no loop needed to increment
+       through high index bits.  When the current sub-table is filled, the loop
+       drops back to the root table to fill in any remaining entries there.
+     */
+    this.op = (unsigned char)64;                /* invalid code marker */
+    this.bits = (unsigned char)(len - drop);
+    this.val = (unsigned short)0;
+    while (huff != 0) {
+        /* when done with sub-table, drop back to root table */
+        if (drop != 0 && (huff & mask) != low) {
+            drop = 0;
+            len = root;
+            next = *table;
+            curr = root;
+            this.bits = (unsigned char)len;
+        }
+
+        /* put invalid code marker in table */
+        next[huff >> drop] = this;
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+    }
+
+    /* set return parameters */
+    *table += used;
+    *bits = root;
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inftree9.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inftree9.h
new file mode 100644
index 000000000..5ab21f0c6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/infback9/inftree9.h
@@ -0,0 +1,61 @@
+/* inftree9.h -- header to use inftree9.c
+ * Copyright (C) 1995-2008 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Structure for decoding tables.  Each entry provides either the
+   information needed to do the operation requested by the code that
+   indexed that table entry, or it provides a pointer to another
+   table that indexes more bits of the code.  op indicates whether
+   the entry is a pointer to another table, a literal, a length or
+   distance, an end-of-block, or an invalid code.  For a table
+   pointer, the low four bits of op is the number of index bits of
+   that table.  For a length or distance, the low four bits of op
+   is the number of extra bits to get after the code.  bits is
+   the number of bits in this code or part of the code to drop off
+   of the bit buffer.  val is the actual byte to output in the case
+   of a literal, the base length or distance, or the offset from
+   the current table to the next table.  Each entry is four bytes. */
+typedef struct {
+    unsigned char op;           /* operation, extra bits, table bits */
+    unsigned char bits;         /* bits in this part of the code */
+    unsigned short val;         /* offset in table or code value */
+} code;
+
+/* op values as set by inflate_table():
+    00000000 - literal
+    0000tttt - table link, tttt != 0 is the number of table index bits
+    100eeeee - length or distance, eeee is the number of extra bits
+    01100000 - end of block
+    01000000 - invalid code
+ */
+
+/* Maximum size of the dynamic table.  The maximum number of code structures is
+   1446, which is the sum of 852 for literal/length codes and 594 for distance
+   codes.  These values were found by exhaustive searches using the program
+   examples/enough.c found in the zlib distribtution.  The arguments to that
+   program are the number of symbols, the initial root table size, and the
+   maximum bit length of a code.  "enough 286 9 15" for literal/length codes
+   returns returns 852, and "enough 32 6 15" for distance codes returns 594.
+   The initial root table size (9 or 6) is found in the fifth argument of the
+   inflate_table() calls in infback9.c.  If the root table size is changed,
+   then these maximum sizes would be need to be recalculated and updated. */
+#define ENOUGH_LENS 852
+#define ENOUGH_DISTS 594
+#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
+
+/* Type of code to build for inflate_table9() */
+typedef enum {
+    CODES,
+    LENS,
+    DISTS
+} codetype;
+
+extern int inflate_table9 OF((codetype type, unsigned short FAR *lens,
+                             unsigned codes, code FAR * FAR *table,
+                             unsigned FAR *bits, unsigned short FAR *work));
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/inflate86/inffas86.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/inflate86/inffas86.c
new file mode 100644
index 000000000..7292f67b7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/inflate86/inffas86.c
@@ -0,0 +1,1157 @@
+/* inffas86.c is a hand tuned assembler version of
+ *
+ * inffast.c -- fast decoding
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+ * Please use the copyright conditions above.
+ *
+ * Dec-29-2003 -- I added AMD64 inflate asm support.  This version is also
+ * slightly quicker on x86 systems because, instead of using rep movsb to copy
+ * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
+ * bytes.  I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
+ * from http://fedora.linux.duke.edu/fc1_x86_64
+ * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
+ * 1GB ram.  The 64-bit version is about 4% faster than the 32-bit version,
+ * when decompressing mozilla-source-1.3.tar.gz.
+ *
+ * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
+ * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
+ * the moment.  I have successfully compiled and tested this code with gcc2.96,
+ * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
+ * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
+ * enabled.  I will attempt to merge the MMX code into this version.  Newer
+ * versions of this and inffast.S can be found at
+ * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+/* Mark Adler's comments from inffast.c: */
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state->mode == LEN
+        strm->avail_in >= 6
+        strm->avail_out >= 258
+        start >= strm->avail_out
+        state->bits < 8
+
+   On return, state->mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm->avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm->avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+void inflate_fast(strm, start)
+z_streamp strm;
+unsigned start;         /* inflate()'s starting value for strm->avail_out */
+{
+    struct inflate_state FAR *state;
+    struct inffast_ar {
+/* 64   32                               x86  x86_64 */
+/* ar offset                              register */
+/*  0    0 */ void *esp;                /* esp save */
+/*  8    4 */ void *ebp;                /* ebp save */
+/* 16    8 */ unsigned char FAR *in;    /* esi rsi  local strm->next_in */
+/* 24   12 */ unsigned char FAR *last;  /*     r9   while in < last */
+/* 32   16 */ unsigned char FAR *out;   /* edi rdi  local strm->next_out */
+/* 40   20 */ unsigned char FAR *beg;   /*          inflate()'s init next_out */
+/* 48   24 */ unsigned char FAR *end;   /*     r10  while out < end */
+/* 56   28 */ unsigned char FAR *window;/*          size of window, wsize!=0 */
+/* 64   32 */ code const FAR *lcode;    /* ebp rbp  local strm->lencode */
+/* 72   36 */ code const FAR *dcode;    /*     r11  local strm->distcode */
+/* 80   40 */ unsigned long hold;       /* edx rdx  local strm->hold */
+/* 88   44 */ unsigned bits;            /* ebx rbx  local strm->bits */
+/* 92   48 */ unsigned wsize;           /*          window size */
+/* 96   52 */ unsigned write;           /*          window write index */
+/*100   56 */ unsigned lmask;           /*     r12  mask for lcode */
+/*104   60 */ unsigned dmask;           /*     r13  mask for dcode */
+/*108   64 */ unsigned len;             /*     r14  match length */
+/*112   68 */ unsigned dist;            /*     r15  match distance */
+/*116   72 */ unsigned status;          /*          set when state chng*/
+    } ar;
+
+#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
+#define PAD_AVAIL_IN 6
+#define PAD_AVAIL_OUT 258
+#else
+#define PAD_AVAIL_IN 5
+#define PAD_AVAIL_OUT 257
+#endif
+
+    /* copy state to local variables */
+    state = (struct inflate_state FAR *)strm->state;
+    ar.in = strm->next_in;
+    ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
+    ar.out = strm->next_out;
+    ar.beg = ar.out - (start - strm->avail_out);
+    ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
+    ar.wsize = state->wsize;
+    ar.write = state->wnext;
+    ar.window = state->window;
+    ar.hold = state->hold;
+    ar.bits = state->bits;
+    ar.lcode = state->lencode;
+    ar.dcode = state->distcode;
+    ar.lmask = (1U << state->lenbits) - 1;
+    ar.dmask = (1U << state->distbits) - 1;
+
+    /* decode literals and length/distances until end-of-block or not enough
+       input data or output space */
+
+    /* align in on 1/2 hold size boundary */
+    while (((unsigned long)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
+        ar.hold += (unsigned long)*ar.in++ << ar.bits;
+        ar.bits += 8;
+    }
+
+#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
+    __asm__ __volatile__ (
+"        leaq    %0, %%rax\n"
+"        movq    %%rbp, 8(%%rax)\n"       /* save regs rbp and rsp */
+"        movq    %%rsp, (%%rax)\n"
+"        movq    %%rax, %%rsp\n"          /* make rsp point to &ar */
+"        movq    16(%%rsp), %%rsi\n"      /* rsi  = in */
+"        movq    32(%%rsp), %%rdi\n"      /* rdi  = out */
+"        movq    24(%%rsp), %%r9\n"       /* r9   = last */
+"        movq    48(%%rsp), %%r10\n"      /* r10  = end */
+"        movq    64(%%rsp), %%rbp\n"      /* rbp  = lcode */
+"        movq    72(%%rsp), %%r11\n"      /* r11  = dcode */
+"        movq    80(%%rsp), %%rdx\n"      /* rdx  = hold */
+"        movl    88(%%rsp), %%ebx\n"      /* ebx  = bits */
+"        movl    100(%%rsp), %%r12d\n"    /* r12d = lmask */
+"        movl    104(%%rsp), %%r13d\n"    /* r13d = dmask */
+                                          /* r14d = len */
+                                          /* r15d = dist */
+"        cld\n"
+"        cmpq    %%rdi, %%r10\n"
+"        je      .L_one_time\n"           /* if only one decode left */
+"        cmpq    %%rsi, %%r9\n"
+"        je      .L_one_time\n"
+"        jmp     .L_do_loop\n"
+
+".L_one_time:\n"
+"        movq    %%r12, %%r8\n"           /* r8 = lmask */
+"        cmpb    $32, %%bl\n"
+"        ja      .L_get_length_code_one_time\n"
+
+"        lodsl\n"                         /* eax = *(uint *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $32, %%bl\n"             /* bits += 32 */
+"        shlq    %%cl, %%rax\n"
+"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
+"        jmp     .L_get_length_code_one_time\n"
+
+".align 32,0x90\n"
+".L_while_test:\n"
+"        cmpq    %%rdi, %%r10\n"
+"        jbe     .L_break_loop\n"
+"        cmpq    %%rsi, %%r9\n"
+"        jbe     .L_break_loop\n"
+
+".L_do_loop:\n"
+"        movq    %%r12, %%r8\n"           /* r8 = lmask */
+"        cmpb    $32, %%bl\n"
+"        ja      .L_get_length_code\n"    /* if (32 < bits) */
+
+"        lodsl\n"                         /* eax = *(uint *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $32, %%bl\n"             /* bits += 32 */
+"        shlq    %%cl, %%rax\n"
+"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
+
+".L_get_length_code:\n"
+"        andq    %%rdx, %%r8\n"            /* r8 &= hold */
+"        movl    (%%rbp,%%r8,4), %%eax\n"  /* eax = lcode[hold & lmask] */
+
+"        movb    %%ah, %%cl\n"            /* cl = this.bits */
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
+
+"        testb   %%al, %%al\n"
+"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
+
+"        movq    %%r12, %%r8\n"            /* r8 = lmask */
+"        shrl    $16, %%eax\n"            /* output this.val char */
+"        stosb\n"
+
+".L_get_length_code_one_time:\n"
+"        andq    %%rdx, %%r8\n"            /* r8 &= hold */
+"        movl    (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */
+
+".L_dolen:\n"
+"        movb    %%ah, %%cl\n"            /* cl = this.bits */
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
+
+"        testb   %%al, %%al\n"
+"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
+
+"        shrl    $16, %%eax\n"            /* output this.val char */
+"        stosb\n"
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_length_base:\n"
+"        movl    %%eax, %%r14d\n"         /* len = this */
+"        shrl    $16, %%r14d\n"           /* len = this.val */
+"        movb    %%al, %%cl\n"
+
+"        testb   $16, %%al\n"
+"        jz      .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_decode_distance\n"    /* if (!op) */
+
+".L_add_bits_to_len:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrq    %%cl, %%rdx\n"
+"        addl    %%eax, %%r14d\n"         /* len += hold & mask[op] */
+
+".L_decode_distance:\n"
+"        movq    %%r13, %%r8\n"           /* r8 = dmask */
+"        cmpb    $32, %%bl\n"
+"        ja      .L_get_distance_code\n"  /* if (32 < bits) */
+
+"        lodsl\n"                         /* eax = *(uint *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $32, %%bl\n"             /* bits += 32 */
+"        shlq    %%cl, %%rax\n"
+"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
+
+".L_get_distance_code:\n"
+"        andq    %%rdx, %%r8\n"           /* r8 &= hold */
+"        movl    (%%r11,%%r8,4), %%eax\n" /* eax = dcode[hold & dmask] */
+
+".L_dodist:\n"
+"        movl    %%eax, %%r15d\n"         /* dist = this */
+"        shrl    $16, %%r15d\n"           /* dist = this.val */
+"        movb    %%ah, %%cl\n"
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
+"        movb    %%al, %%cl\n"            /* cl = this.op */
+
+"        testb   $16, %%al\n"             /* if ((op & 16) == 0) */
+"        jz      .L_test_for_second_level_dist\n"
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_check_dist_one\n"
+
+".L_add_bits_to_dist:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"                 /* (1 << op) - 1 */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrq    %%cl, %%rdx\n"
+"        addl    %%eax, %%r15d\n"         /* dist += hold & ((1 << op) - 1) */
+
+".L_check_window:\n"
+"        movq    %%rsi, %%r8\n"           /* save in so from can use it's reg */
+"        movq    %%rdi, %%rax\n"
+"        subq    40(%%rsp), %%rax\n"      /* nbytes = out - beg */
+
+"        cmpl    %%r15d, %%eax\n"
+"        jb      .L_clip_window\n"        /* if (dist > nbytes) 4.2% */
+
+"        movl    %%r14d, %%ecx\n"         /* ecx = len */
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"          /* from = out - dist */
+
+"        sarl    %%ecx\n"
+"        jnc     .L_copy_two\n"           /* if len % 2 == 0 */
+
+"        rep     movsw\n"
+"        movb    (%%rsi), %%al\n"
+"        movb    %%al, (%%rdi)\n"
+"        incq    %%rdi\n"
+
+"        movq    %%r8, %%rsi\n"           /* move in back to %rsi, toss from */
+"        jmp     .L_while_test\n"
+
+".L_copy_two:\n"
+"        rep     movsw\n"
+"        movq    %%r8, %%rsi\n"           /* move in back to %rsi, toss from */
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_check_dist_one:\n"
+"        cmpl    $1, %%r15d\n"            /* if dist 1, is a memset */
+"        jne     .L_check_window\n"
+"        cmpq    %%rdi, 40(%%rsp)\n"      /* if out == beg, outside window */
+"        je      .L_check_window\n"
+
+"        movl    %%r14d, %%ecx\n"         /* ecx = len */
+"        movb    -1(%%rdi), %%al\n"
+"        movb    %%al, %%ah\n"
+
+"        sarl    %%ecx\n"
+"        jnc     .L_set_two\n"
+"        movb    %%al, (%%rdi)\n"
+"        incq    %%rdi\n"
+
+".L_set_two:\n"
+"        rep     stosw\n"
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_length:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    %%r14d, %%eax\n"        /* eax += len */
+"        movl    (%%rbp,%%rax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
+"        jmp     .L_dolen\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_dist:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    %%r15d, %%eax\n"        /* eax += dist */
+"        movl    (%%r11,%%rax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
+"        jmp     .L_dodist\n"
+
+".align 32,0x90\n"
+".L_clip_window:\n"
+"        movl    %%eax, %%ecx\n"         /* ecx = nbytes */
+"        movl    92(%%rsp), %%eax\n"     /* eax = wsize, prepare for dist cmp */
+"        negl    %%ecx\n"                /* nbytes = -nbytes */
+
+"        cmpl    %%r15d, %%eax\n"
+"        jb      .L_invalid_distance_too_far\n" /* if (dist > wsize) */
+
+"        addl    %%r15d, %%ecx\n"         /* nbytes = dist - nbytes */
+"        cmpl    $0, 96(%%rsp)\n"
+"        jne     .L_wrap_around_window\n" /* if (write != 0) */
+
+"        movq    56(%%rsp), %%rsi\n"     /* from  = window */
+"        subl    %%ecx, %%eax\n"         /* eax  -= nbytes */
+"        addq    %%rax, %%rsi\n"         /* from += wsize - nbytes */
+
+"        movl    %%r14d, %%eax\n"        /* eax = len */
+"        cmpl    %%ecx, %%r14d\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* eax -= nbytes */
+"        rep     movsb\n"
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"         /* from = &out[ -dist ] */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_wrap_around_window:\n"
+"        movl    96(%%rsp), %%eax\n"     /* eax = write */
+"        cmpl    %%eax, %%ecx\n"
+"        jbe     .L_contiguous_in_window\n" /* if (write >= nbytes) */
+
+"        movl    92(%%rsp), %%esi\n"     /* from  = wsize */
+"        addq    56(%%rsp), %%rsi\n"     /* from += window */
+"        addq    %%rax, %%rsi\n"         /* from += write */
+"        subq    %%rcx, %%rsi\n"         /* from -= nbytes */
+"        subl    %%eax, %%ecx\n"         /* nbytes -= write */
+
+"        movl    %%r14d, %%eax\n"        /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movq    56(%%rsp), %%rsi\n"     /* from = window */
+"        movl    96(%%rsp), %%ecx\n"     /* nbytes = write */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_contiguous_in_window:\n"
+"        movq    56(%%rsp), %%rsi\n"     /* rsi = window */
+"        addq    %%rax, %%rsi\n"
+"        subq    %%rcx, %%rsi\n"         /* from += write - nbytes */
+
+"        movl    %%r14d, %%eax\n"        /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movq    %%rdi, %%rsi\n"
+"        subq    %%r15, %%rsi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"           /* if (nbytes >= len) */
+
+".align 32,0x90\n"
+".L_do_copy:\n"
+"        movl    %%eax, %%ecx\n"         /* ecx = len */
+"        rep     movsb\n"
+
+"        movq    %%r8, %%rsi\n"          /* move in back to %esi, toss from */
+"        jmp     .L_while_test\n"
+
+".L_test_for_end_of_block:\n"
+"        testb   $32, %%al\n"
+"        jz      .L_invalid_literal_length_code\n"
+"        movl    $1, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_literal_length_code:\n"
+"        movl    $2, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_code:\n"
+"        movl    $3, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_too_far:\n"
+"        movl    $4, 116(%%rsp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_break_loop:\n"
+"        movl    $0, 116(%%rsp)\n"
+
+".L_break_loop_with_status:\n"
+/* put in, out, bits, and hold back into ar and pop esp */
+"        movq    %%rsi, 16(%%rsp)\n"     /* in */
+"        movq    %%rdi, 32(%%rsp)\n"     /* out */
+"        movl    %%ebx, 88(%%rsp)\n"     /* bits */
+"        movq    %%rdx, 80(%%rsp)\n"     /* hold */
+"        movq    (%%rsp), %%rax\n"       /* restore rbp and rsp */
+"        movq    8(%%rsp), %%rbp\n"
+"        movq    %%rax, %%rsp\n"
+          :
+          : "m" (ar)
+          : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
+            "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
+    );
+#elif ( defined( __GNUC__ ) || defined( __ICC ) ) && defined( __i386 )
+    __asm__ __volatile__ (
+"        leal    %0, %%eax\n"
+"        movl    %%esp, (%%eax)\n"        /* save esp, ebp */
+"        movl    %%ebp, 4(%%eax)\n"
+"        movl    %%eax, %%esp\n"
+"        movl    8(%%esp), %%esi\n"       /* esi = in */
+"        movl    16(%%esp), %%edi\n"      /* edi = out */
+"        movl    40(%%esp), %%edx\n"      /* edx = hold */
+"        movl    44(%%esp), %%ebx\n"      /* ebx = bits */
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+
+"        cld\n"
+"        jmp     .L_do_loop\n"
+
+".align 32,0x90\n"
+".L_while_test:\n"
+"        cmpl    %%edi, 24(%%esp)\n"      /* out < end */
+"        jbe     .L_break_loop\n"
+"        cmpl    %%esi, 12(%%esp)\n"      /* in < last */
+"        jbe     .L_break_loop\n"
+
+".L_do_loop:\n"
+"        cmpb    $15, %%bl\n"
+"        ja      .L_get_length_code\n"    /* if (15 < bits) */
+
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"        /* hold |= *((ushort *)in)++ << bits */
+
+".L_get_length_code:\n"
+"        movl    56(%%esp), %%eax\n"      /* eax = lmask */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        movl    (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */
+
+".L_dolen:\n"
+"        movb    %%ah, %%cl\n"            /* cl = this.bits */
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrl    %%cl, %%edx\n"           /* hold >>= this.bits */
+
+"        testb   %%al, %%al\n"
+"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
+
+"        shrl    $16, %%eax\n"            /* output this.val char */
+"        stosb\n"
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_length_base:\n"
+"        movl    %%eax, %%ecx\n"          /* len = this */
+"        shrl    $16, %%ecx\n"            /* len = this.val */
+"        movl    %%ecx, 64(%%esp)\n"      /* save len */
+"        movb    %%al, %%cl\n"
+
+"        testb   $16, %%al\n"
+"        jz      .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_decode_distance\n"    /* if (!op) */
+"        cmpb    %%cl, %%bl\n"
+"        jae     .L_add_bits_to_len\n"    /* if (op <= bits) */
+
+"        movb    %%cl, %%ch\n"            /* stash op in ch, freeing cl */
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"         /* hold |= *((ushort *)in)++ << bits */
+"        movb    %%ch, %%cl\n"            /* move op back to ecx */
+
+".L_add_bits_to_len:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrl    %%cl, %%edx\n"
+"        addl    %%eax, 64(%%esp)\n"      /* len += hold & mask[op] */
+
+".L_decode_distance:\n"
+"        cmpb    $15, %%bl\n"
+"        ja      .L_get_distance_code\n"  /* if (15 < bits) */
+
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"         /* hold |= *((ushort *)in)++ << bits */
+
+".L_get_distance_code:\n"
+"        movl    60(%%esp), %%eax\n"      /* eax = dmask */
+"        movl    36(%%esp), %%ecx\n"      /* ecx = dcode */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        movl    (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */
+
+".L_dodist:\n"
+"        movl    %%eax, %%ebp\n"          /* dist = this */
+"        shrl    $16, %%ebp\n"            /* dist = this.val */
+"        movb    %%ah, %%cl\n"
+"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
+"        shrl    %%cl, %%edx\n"           /* hold >>= this.bits */
+"        movb    %%al, %%cl\n"            /* cl = this.op */
+
+"        testb   $16, %%al\n"             /* if ((op & 16) == 0) */
+"        jz      .L_test_for_second_level_dist\n"
+"        andb    $15, %%cl\n"             /* op &= 15 */
+"        jz      .L_check_dist_one\n"
+"        cmpb    %%cl, %%bl\n"
+"        jae     .L_add_bits_to_dist\n"   /* if (op <= bits) 97.6% */
+
+"        movb    %%cl, %%ch\n"            /* stash op in ch, freeing cl */
+"        xorl    %%eax, %%eax\n"
+"        lodsw\n"                         /* al = *(ushort *)in++ */
+"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
+"        addb    $16, %%bl\n"             /* bits += 16 */
+"        shll    %%cl, %%eax\n"
+"        orl     %%eax, %%edx\n"        /* hold |= *((ushort *)in)++ << bits */
+"        movb    %%ch, %%cl\n"            /* move op back to ecx */
+
+".L_add_bits_to_dist:\n"
+"        subb    %%cl, %%bl\n"
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"                 /* (1 << op) - 1 */
+"        andl    %%edx, %%eax\n"          /* eax &= hold */
+"        shrl    %%cl, %%edx\n"
+"        addl    %%eax, %%ebp\n"          /* dist += hold & ((1 << op) - 1) */
+
+".L_check_window:\n"
+"        movl    %%esi, 8(%%esp)\n"       /* save in so from can use it's reg */
+"        movl    %%edi, %%eax\n"
+"        subl    20(%%esp), %%eax\n"      /* nbytes = out - beg */
+
+"        cmpl    %%ebp, %%eax\n"
+"        jb      .L_clip_window\n"        /* if (dist > nbytes) 4.2% */
+
+"        movl    64(%%esp), %%ecx\n"      /* ecx = len */
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"          /* from = out - dist */
+
+"        sarl    %%ecx\n"
+"        jnc     .L_copy_two\n"           /* if len % 2 == 0 */
+
+"        rep     movsw\n"
+"        movb    (%%esi), %%al\n"
+"        movb    %%al, (%%edi)\n"
+"        incl    %%edi\n"
+
+"        movl    8(%%esp), %%esi\n"       /* move in back to %esi, toss from */
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".L_copy_two:\n"
+"        rep     movsw\n"
+"        movl    8(%%esp), %%esi\n"       /* move in back to %esi, toss from */
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_check_dist_one:\n"
+"        cmpl    $1, %%ebp\n"            /* if dist 1, is a memset */
+"        jne     .L_check_window\n"
+"        cmpl    %%edi, 20(%%esp)\n"
+"        je      .L_check_window\n"      /* out == beg, if outside window */
+
+"        movl    64(%%esp), %%ecx\n"      /* ecx = len */
+"        movb    -1(%%edi), %%al\n"
+"        movb    %%al, %%ah\n"
+
+"        sarl    %%ecx\n"
+"        jnc     .L_set_two\n"
+"        movb    %%al, (%%edi)\n"
+"        incl    %%edi\n"
+
+".L_set_two:\n"
+"        rep     stosw\n"
+"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_length:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    64(%%esp), %%eax\n"     /* eax += len */
+"        movl    (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
+"        jmp     .L_dolen\n"
+
+".align 32,0x90\n"
+".L_test_for_second_level_dist:\n"
+"        testb   $64, %%al\n"
+"        jnz     .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
+
+"        xorl    %%eax, %%eax\n"
+"        incl    %%eax\n"
+"        shll    %%cl, %%eax\n"
+"        decl    %%eax\n"
+"        andl    %%edx, %%eax\n"         /* eax &= hold */
+"        addl    %%ebp, %%eax\n"         /* eax += dist */
+"        movl    36(%%esp), %%ecx\n"     /* ecx = dcode */
+"        movl    (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
+"        jmp     .L_dodist\n"
+
+".align 32,0x90\n"
+".L_clip_window:\n"
+"        movl    %%eax, %%ecx\n"
+"        movl    48(%%esp), %%eax\n"     /* eax = wsize */
+"        negl    %%ecx\n"                /* nbytes = -nbytes */
+"        movl    28(%%esp), %%esi\n"     /* from = window */
+
+"        cmpl    %%ebp, %%eax\n"
+"        jb      .L_invalid_distance_too_far\n" /* if (dist > wsize) */
+
+"        addl    %%ebp, %%ecx\n"         /* nbytes = dist - nbytes */
+"        cmpl    $0, 52(%%esp)\n"
+"        jne     .L_wrap_around_window\n" /* if (write != 0) */
+
+"        subl    %%ecx, %%eax\n"
+"        addl    %%eax, %%esi\n"         /* from += wsize - nbytes */
+
+"        movl    64(%%esp), %%eax\n"     /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_wrap_around_window:\n"
+"        movl    52(%%esp), %%eax\n"     /* eax = write */
+"        cmpl    %%eax, %%ecx\n"
+"        jbe     .L_contiguous_in_window\n" /* if (write >= nbytes) */
+
+"        addl    48(%%esp), %%esi\n"     /* from += wsize */
+"        addl    %%eax, %%esi\n"         /* from += write */
+"        subl    %%ecx, %%esi\n"         /* from -= nbytes */
+"        subl    %%eax, %%ecx\n"         /* nbytes -= write */
+
+"        movl    64(%%esp), %%eax\n"     /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    28(%%esp), %%esi\n"     /* from = window */
+"        movl    52(%%esp), %%ecx\n"     /* nbytes = write */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"
+
+".align 32,0x90\n"
+".L_contiguous_in_window:\n"
+"        addl    %%eax, %%esi\n"
+"        subl    %%ecx, %%esi\n"         /* from += write - nbytes */
+
+"        movl    64(%%esp), %%eax\n"     /* eax = len */
+"        cmpl    %%ecx, %%eax\n"
+"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
+
+"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
+"        rep     movsb\n"
+"        movl    %%edi, %%esi\n"
+"        subl    %%ebp, %%esi\n"         /* from = out - dist */
+"        jmp     .L_do_copy\n"           /* if (nbytes >= len) */
+
+".align 32,0x90\n"
+".L_do_copy:\n"
+"        movl    %%eax, %%ecx\n"
+"        rep     movsb\n"
+
+"        movl    8(%%esp), %%esi\n"      /* move in back to %esi, toss from */
+"        movl    32(%%esp), %%ebp\n"     /* ebp = lcode */
+"        jmp     .L_while_test\n"
+
+".L_test_for_end_of_block:\n"
+"        testb   $32, %%al\n"
+"        jz      .L_invalid_literal_length_code\n"
+"        movl    $1, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_literal_length_code:\n"
+"        movl    $2, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_code:\n"
+"        movl    $3, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_invalid_distance_too_far:\n"
+"        movl    8(%%esp), %%esi\n"
+"        movl    $4, 72(%%esp)\n"
+"        jmp     .L_break_loop_with_status\n"
+
+".L_break_loop:\n"
+"        movl    $0, 72(%%esp)\n"
+
+".L_break_loop_with_status:\n"
+/* put in, out, bits, and hold back into ar and pop esp */
+"        movl    %%esi, 8(%%esp)\n"      /* save in */
+"        movl    %%edi, 16(%%esp)\n"     /* save out */
+"        movl    %%ebx, 44(%%esp)\n"     /* save bits */
+"        movl    %%edx, 40(%%esp)\n"     /* save hold */
+"        movl    4(%%esp), %%ebp\n"      /* restore esp, ebp */
+"        movl    (%%esp), %%esp\n"
+          :
+          : "m" (ar)
+          : "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
+    );
+#elif defined( _MSC_VER ) && ! defined( _M_AMD64 )
+    __asm {
+	lea	eax, ar
+	mov	[eax], esp         /* save esp, ebp */
+	mov	[eax+4], ebp
+	mov	esp, eax
+	mov	esi, [esp+8]       /* esi = in */
+	mov	edi, [esp+16]      /* edi = out */
+	mov	edx, [esp+40]      /* edx = hold */
+	mov	ebx, [esp+44]      /* ebx = bits */
+	mov	ebp, [esp+32]      /* ebp = lcode */
+
+	cld
+	jmp	L_do_loop
+
+ALIGN 4
+L_while_test:
+	cmp	[esp+24], edi
+	jbe	L_break_loop
+	cmp	[esp+12], esi
+	jbe	L_break_loop
+
+L_do_loop:
+	cmp	bl, 15
+	ja	L_get_length_code    /* if (15 < bits) */
+
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax        /* hold |= *((ushort *)in)++ << bits */
+
+L_get_length_code:
+	mov	eax, [esp+56]      /* eax = lmask */
+	and	eax, edx          /* eax &= hold */
+	mov	eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */
+
+L_dolen:
+	mov	cl, ah            /* cl = this.bits */
+	sub	bl, ah            /* bits -= this.bits */
+	shr	edx, cl           /* hold >>= this.bits */
+
+	test	al, al
+	jnz	L_test_for_length_base /* if (op != 0) 45.7% */
+
+	shr	eax, 16            /* output this.val char */
+	stosb
+	jmp	L_while_test
+
+ALIGN 4
+L_test_for_length_base:
+	mov	ecx, eax          /* len = this */
+	shr	ecx, 16            /* len = this.val */
+	mov	[esp+64], ecx      /* save len */
+	mov	cl, al
+
+	test	al, 16
+	jz	L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
+	and	cl, 15             /* op &= 15 */
+	jz	L_decode_distance    /* if (!op) */
+	cmp	bl, cl
+	jae	L_add_bits_to_len    /* if (op <= bits) */
+
+	mov	ch, cl            /* stash op in ch, freeing cl */
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax         /* hold |= *((ushort *)in)++ << bits */
+	mov	cl, ch            /* move op back to ecx */
+
+L_add_bits_to_len:
+	sub	bl, cl
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx          /* eax &= hold */
+	shr	edx, cl
+	add	[esp+64], eax      /* len += hold & mask[op] */
+
+L_decode_distance:
+	cmp	bl, 15
+	ja	L_get_distance_code  /* if (15 < bits) */
+
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax         /* hold |= *((ushort *)in)++ << bits */
+
+L_get_distance_code:
+	mov	eax, [esp+60]      /* eax = dmask */
+	mov	ecx, [esp+36]      /* ecx = dcode */
+	and	eax, edx          /* eax &= hold */
+	mov	eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */
+
+L_dodist:
+	mov	ebp, eax          /* dist = this */
+	shr	ebp, 16            /* dist = this.val */
+	mov	cl, ah
+	sub	bl, ah            /* bits -= this.bits */
+	shr	edx, cl           /* hold >>= this.bits */
+	mov	cl, al            /* cl = this.op */
+
+	test	al, 16             /* if ((op & 16) == 0) */
+	jz	L_test_for_second_level_dist
+	and	cl, 15             /* op &= 15 */
+	jz	L_check_dist_one
+	cmp	bl, cl
+	jae	L_add_bits_to_dist   /* if (op <= bits) 97.6% */
+
+	mov	ch, cl            /* stash op in ch, freeing cl */
+	xor	eax, eax
+	lodsw                         /* al = *(ushort *)in++ */
+	mov	cl, bl            /* cl = bits, needs it for shifting */
+	add	bl, 16             /* bits += 16 */
+	shl	eax, cl
+	or	edx, eax        /* hold |= *((ushort *)in)++ << bits */
+	mov	cl, ch            /* move op back to ecx */
+
+L_add_bits_to_dist:
+	sub	bl, cl
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax                 /* (1 << op) - 1 */
+	and	eax, edx          /* eax &= hold */
+	shr	edx, cl
+	add	ebp, eax          /* dist += hold & ((1 << op) - 1) */
+
+L_check_window:
+	mov	[esp+8], esi       /* save in so from can use it's reg */
+	mov	eax, edi
+	sub	eax, [esp+20]      /* nbytes = out - beg */
+
+	cmp	eax, ebp
+	jb	L_clip_window        /* if (dist > nbytes) 4.2% */
+
+	mov	ecx, [esp+64]      /* ecx = len */
+	mov	esi, edi
+	sub	esi, ebp          /* from = out - dist */
+
+	sar	ecx, 1
+	jnc	L_copy_two
+
+	rep     movsw
+	mov	al, [esi]
+	mov	[edi], al
+	inc	edi
+
+	mov	esi, [esp+8]      /* move in back to %esi, toss from */
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+L_copy_two:
+	rep     movsw
+	mov	esi, [esp+8]      /* move in back to %esi, toss from */
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+ALIGN 4
+L_check_dist_one:
+	cmp	ebp, 1            /* if dist 1, is a memset */
+	jne	L_check_window
+	cmp	[esp+20], edi
+	je	L_check_window    /* out == beg, if outside window */
+
+	mov	ecx, [esp+64]     /* ecx = len */
+	mov	al, [edi-1]
+	mov	ah, al
+
+	sar	ecx, 1
+	jnc	L_set_two
+	mov	[edi], al         /* memset out with from[-1] */
+	inc	edi
+
+L_set_two:
+	rep     stosw
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+ALIGN 4
+L_test_for_second_level_length:
+	test	al, 64
+	jnz	L_test_for_end_of_block /* if ((op & 64) != 0) */
+
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx         /* eax &= hold */
+	add	eax, [esp+64]     /* eax += len */
+	mov	eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/
+	jmp	L_dolen
+
+ALIGN 4
+L_test_for_second_level_dist:
+	test	al, 64
+	jnz	L_invalid_distance_code /* if ((op & 64) != 0) */
+
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx         /* eax &= hold */
+	add	eax, ebp         /* eax += dist */
+	mov	ecx, [esp+36]     /* ecx = dcode */
+	mov	eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/
+	jmp	L_dodist
+
+ALIGN 4
+L_clip_window:
+	mov	ecx, eax
+	mov	eax, [esp+48]     /* eax = wsize */
+	neg	ecx                /* nbytes = -nbytes */
+	mov	esi, [esp+28]     /* from = window */
+
+	cmp	eax, ebp
+	jb	L_invalid_distance_too_far /* if (dist > wsize) */
+
+	add	ecx, ebp         /* nbytes = dist - nbytes */
+	cmp	dword ptr [esp+52], 0
+	jne	L_wrap_around_window /* if (write != 0) */
+
+	sub	eax, ecx
+	add	esi, eax         /* from += wsize - nbytes */
+
+	mov	eax, [esp+64]    /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, edi
+	sub	esi, ebp         /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_wrap_around_window:
+	mov	eax, [esp+52]    /* eax = write */
+	cmp	ecx, eax
+	jbe	L_contiguous_in_window /* if (write >= nbytes) */
+
+	add	esi, [esp+48]    /* from += wsize */
+	add	esi, eax         /* from += write */
+	sub	esi, ecx         /* from -= nbytes */
+	sub	ecx, eax         /* nbytes -= write */
+
+	mov	eax, [esp+64]    /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, [esp+28]     /* from = window */
+	mov	ecx, [esp+52]     /* nbytes = write */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, edi
+	sub	esi, ebp         /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_contiguous_in_window:
+	add	esi, eax
+	sub	esi, ecx         /* from += write - nbytes */
+
+	mov	eax, [esp+64]    /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy          /* if (nbytes >= len) */
+
+	sub	eax, ecx         /* len -= nbytes */
+	rep     movsb
+	mov	esi, edi
+	sub	esi, ebp         /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_do_copy:
+	mov	ecx, eax
+	rep     movsb
+
+	mov	esi, [esp+8]      /* move in back to %esi, toss from */
+	mov	ebp, [esp+32]     /* ebp = lcode */
+	jmp	L_while_test
+
+L_test_for_end_of_block:
+	test	al, 32
+	jz	L_invalid_literal_length_code
+	mov	dword ptr [esp+72], 1
+	jmp	L_break_loop_with_status
+
+L_invalid_literal_length_code:
+	mov	dword ptr [esp+72], 2
+	jmp	L_break_loop_with_status
+
+L_invalid_distance_code:
+	mov	dword ptr [esp+72], 3
+	jmp	L_break_loop_with_status
+
+L_invalid_distance_too_far:
+	mov	esi, [esp+4]
+	mov	dword ptr [esp+72], 4
+	jmp	L_break_loop_with_status
+
+L_break_loop:
+	mov	dword ptr [esp+72], 0
+
+L_break_loop_with_status:
+/* put in, out, bits, and hold back into ar and pop esp */
+	mov	[esp+8], esi     /* save in */
+	mov	[esp+16], edi    /* save out */
+	mov	[esp+44], ebx    /* save bits */
+	mov	[esp+40], edx    /* save hold */
+	mov	ebp, [esp+4]     /* restore esp, ebp */
+	mov	esp, [esp]
+    }
+#else
+#error "x86 architecture not defined"
+#endif
+
+    if (ar.status > 1) {
+        if (ar.status == 2)
+            strm->msg = "invalid literal/length code";
+        else if (ar.status == 3)
+            strm->msg = "invalid distance code";
+        else
+            strm->msg = "invalid distance too far back";
+        state->mode = BAD;
+    }
+    else if ( ar.status == 1 ) {
+        state->mode = TYPE;
+    }
+
+    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+    ar.len = ar.bits >> 3;
+    ar.in -= ar.len;
+    ar.bits -= ar.len << 3;
+    ar.hold &= (1U << ar.bits) - 1;
+
+    /* update state and return */
+    strm->next_in = ar.in;
+    strm->next_out = ar.out;
+    strm->avail_in = (unsigned)(ar.in < ar.last ?
+                                PAD_AVAIL_IN + (ar.last - ar.in) :
+                                PAD_AVAIL_IN - (ar.in - ar.last));
+    strm->avail_out = (unsigned)(ar.out < ar.end ?
+                                 PAD_AVAIL_OUT + (ar.end - ar.out) :
+                                 PAD_AVAIL_OUT - (ar.out - ar.end));
+    state->hold = ar.hold;
+    state->bits = ar.bits;
+    return;
+}
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/inflate86/inffast.S b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/inflate86/inffast.S
new file mode 100644
index 000000000..2245a2905
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/inflate86/inffast.S
@@ -0,0 +1,1368 @@
+/*
+ * inffast.S is a hand tuned assembler version of:
+ *
+ * inffast.c -- fast decoding
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+ * Please use the copyright conditions above.
+ *
+ * This version (Jan-23-2003) of inflate_fast was coded and tested under
+ * GNU/Linux on a pentium 3, using the gcc-3.2 compiler distribution.  On that
+ * machine, I found that gzip style archives decompressed about 20% faster than
+ * the gcc-3.2 -O3 -fomit-frame-pointer compiled version.  Your results will
+ * depend on how large of a buffer is used for z_stream.next_in & next_out
+ * (8K-32K worked best for my 256K cpu cache) and how much overhead there is in
+ * stream processing I/O and crc32/addler32.  In my case, this routine used
+ * 70% of the cpu time and crc32 used 20%.
+ *
+ * I am confident that this version will work in the general case, but I have
+ * not tested a wide variety of datasets or a wide variety of platforms.
+ *
+ * Jan-24-2003 -- Added -DUSE_MMX define for slightly faster inflating.
+ * It should be a runtime flag instead of compile time flag...
+ *
+ * Jan-26-2003 -- Added runtime check for MMX support with cpuid instruction.
+ * With -DUSE_MMX, only MMX code is compiled.  With -DNO_MMX, only non-MMX code
+ * is compiled.  Without either option, runtime detection is enabled.  Runtime
+ * detection should work on all modern cpus and the recomended algorithm (flip
+ * ID bit on eflags and then use the cpuid instruction) is used in many
+ * multimedia applications.  Tested under win2k with gcc-2.95 and gas-2.12
+ * distributed with cygwin3.  Compiling with gcc-2.95 -c inffast.S -o
+ * inffast.obj generates a COFF object which can then be linked with MSVC++
+ * compiled code.  Tested under FreeBSD 4.7 with gcc-2.95.
+ *
+ * Jan-28-2003 -- Tested Athlon XP... MMX mode is slower than no MMX (and
+ * slower than compiler generated code).  Adjusted cpuid check to use the MMX
+ * code only for Pentiums < P4 until I have more data on the P4.  Speed
+ * improvment is only about 15% on the Athlon when compared with code generated
+ * with MSVC++.  Not sure yet, but I think the P4 will also be slower using the
+ * MMX mode because many of it's x86 ALU instructions execute in .5 cycles and
+ * have less latency than MMX ops.  Added code to buffer the last 11 bytes of
+ * the input stream since the MMX code grabs bits in chunks of 32, which
+ * differs from the inffast.c algorithm.  I don't think there would have been
+ * read overruns where a page boundary was crossed (a segfault), but there
+ * could have been overruns when next_in ends on unaligned memory (unintialized
+ * memory read).
+ *
+ * Mar-13-2003 -- P4 MMX is slightly slower than P4 NO_MMX.  I created a C
+ * version of the non-MMX code so that it doesn't depend on zstrm and zstate
+ * structure offsets which are hard coded in this file.  This was last tested
+ * with zlib-1.2.0 which is currently in beta testing, newer versions of this
+ * and inffas86.c can be found at http://www.eetbeetee.com/zlib/ and
+ * http://www.charm.net/~christop/zlib/
+ */
+
+
+/*
+ * if you have underscore linking problems (_inflate_fast undefined), try
+ * using -DGAS_COFF
+ */
+#if ! defined( GAS_COFF ) && ! defined( GAS_ELF )
+
+#if defined( WIN32 ) || defined( __CYGWIN__ )
+#define GAS_COFF /* windows object format */
+#else
+#define GAS_ELF
+#endif
+
+#endif /* ! GAS_COFF && ! GAS_ELF */
+
+
+#if defined( GAS_COFF )
+
+/* coff externals have underscores */
+#define inflate_fast _inflate_fast
+#define inflate_fast_use_mmx _inflate_fast_use_mmx
+
+#endif /* GAS_COFF */
+
+
+.file "inffast.S"
+
+.globl inflate_fast
+
+.text
+.align 4,0
+.L_invalid_literal_length_code_msg:
+.string "invalid literal/length code"
+
+.align 4,0
+.L_invalid_distance_code_msg:
+.string "invalid distance code"
+
+.align 4,0
+.L_invalid_distance_too_far_msg:
+.string "invalid distance too far back"
+
+#if ! defined( NO_MMX )
+.align 4,0
+.L_mask: /* mask[N] = ( 1 << N ) - 1 */
+.long 0
+.long 1
+.long 3
+.long 7
+.long 15
+.long 31
+.long 63
+.long 127
+.long 255
+.long 511
+.long 1023
+.long 2047
+.long 4095
+.long 8191
+.long 16383
+.long 32767
+.long 65535
+.long 131071
+.long 262143
+.long 524287
+.long 1048575
+.long 2097151
+.long 4194303
+.long 8388607
+.long 16777215
+.long 33554431
+.long 67108863
+.long 134217727
+.long 268435455
+.long 536870911
+.long 1073741823
+.long 2147483647
+.long 4294967295
+#endif /* NO_MMX */
+
+.text
+
+/*
+ * struct z_stream offsets, in zlib.h
+ */
+#define next_in_strm   0   /* strm->next_in */
+#define avail_in_strm  4   /* strm->avail_in */
+#define next_out_strm  12  /* strm->next_out */
+#define avail_out_strm 16  /* strm->avail_out */
+#define msg_strm       24  /* strm->msg */
+#define state_strm     28  /* strm->state */
+
+/*
+ * struct inflate_state offsets, in inflate.h
+ */
+#define mode_state     0   /* state->mode */
+#define wsize_state    32  /* state->wsize */
+#define write_state    40  /* state->write */
+#define window_state   44  /* state->window */
+#define hold_state     48  /* state->hold */
+#define bits_state     52  /* state->bits */
+#define lencode_state  68  /* state->lencode */
+#define distcode_state 72  /* state->distcode */
+#define lenbits_state  76  /* state->lenbits */
+#define distbits_state 80  /* state->distbits */
+
+/*
+ * inflate_fast's activation record
+ */
+#define local_var_size 64 /* how much local space for vars */
+#define strm_sp        88 /* first arg: z_stream * (local_var_size + 24) */
+#define start_sp       92 /* second arg: unsigned int (local_var_size + 28) */
+
+/*
+ * offsets for local vars on stack
+ */
+#define out            60  /* unsigned char* */
+#define window         56  /* unsigned char* */
+#define wsize          52  /* unsigned int */
+#define write          48  /* unsigned int */
+#define in             44  /* unsigned char* */
+#define beg            40  /* unsigned char* */
+#define buf            28  /* char[ 12 ] */
+#define len            24  /* unsigned int */
+#define last           20  /* unsigned char* */
+#define end            16  /* unsigned char* */
+#define dcode          12  /* code* */
+#define lcode           8  /* code* */
+#define dmask           4  /* unsigned int */
+#define lmask           0  /* unsigned int */
+
+/*
+ * typedef enum inflate_mode consts, in inflate.h
+ */
+#define INFLATE_MODE_TYPE 11  /* state->mode flags enum-ed in inflate.h */
+#define INFLATE_MODE_BAD  26
+
+
+#if ! defined( USE_MMX ) && ! defined( NO_MMX )
+
+#define RUN_TIME_MMX
+
+#define CHECK_MMX    1
+#define DO_USE_MMX   2
+#define DONT_USE_MMX 3
+
+.globl inflate_fast_use_mmx
+
+.data
+
+.align 4,0
+inflate_fast_use_mmx: /* integer flag for run time control 1=check,2=mmx,3=no */
+.long CHECK_MMX
+
+#if defined( GAS_ELF )
+/* elf info */
+.type   inflate_fast_use_mmx,@object
+.size   inflate_fast_use_mmx,4
+#endif
+
+#endif /* RUN_TIME_MMX */
+
+#if defined( GAS_COFF )
+/* coff info: scl 2 = extern, type 32 = function */
+.def inflate_fast; .scl 2; .type 32; .endef
+#endif
+
+.text
+
+.align 32,0x90
+inflate_fast:
+        pushl   %edi
+        pushl   %esi
+        pushl   %ebp
+        pushl   %ebx
+        pushf   /* save eflags (strm_sp, state_sp assumes this is 32 bits) */
+        subl    $local_var_size, %esp
+        cld
+
+#define strm_r  %esi
+#define state_r %edi
+
+        movl    strm_sp(%esp), strm_r
+        movl    state_strm(strm_r), state_r
+
+        /* in = strm->next_in;
+         * out = strm->next_out;
+         * last = in + strm->avail_in - 11;
+         * beg = out - (start - strm->avail_out);
+         * end = out + (strm->avail_out - 257);
+         */
+        movl    avail_in_strm(strm_r), %edx
+        movl    next_in_strm(strm_r), %eax
+
+        addl    %eax, %edx      /* avail_in += next_in */
+        subl    $11, %edx       /* avail_in -= 11 */
+
+        movl    %eax, in(%esp)
+        movl    %edx, last(%esp)
+
+        movl    start_sp(%esp), %ebp
+        movl    avail_out_strm(strm_r), %ecx
+        movl    next_out_strm(strm_r), %ebx
+
+        subl    %ecx, %ebp      /* start -= avail_out */
+        negl    %ebp            /* start = -start */
+        addl    %ebx, %ebp      /* start += next_out */
+
+        subl    $257, %ecx      /* avail_out -= 257 */
+        addl    %ebx, %ecx      /* avail_out += out */
+
+        movl    %ebx, out(%esp)
+        movl    %ebp, beg(%esp)
+        movl    %ecx, end(%esp)
+
+        /* wsize = state->wsize;
+         * write = state->write;
+         * window = state->window;
+         * hold = state->hold;
+         * bits = state->bits;
+         * lcode = state->lencode;
+         * dcode = state->distcode;
+         * lmask = ( 1 << state->lenbits ) - 1;
+         * dmask = ( 1 << state->distbits ) - 1;
+         */
+
+        movl    lencode_state(state_r), %eax
+        movl    distcode_state(state_r), %ecx
+
+        movl    %eax, lcode(%esp)
+        movl    %ecx, dcode(%esp)
+
+        movl    $1, %eax
+        movl    lenbits_state(state_r), %ecx
+        shll    %cl, %eax
+        decl    %eax
+        movl    %eax, lmask(%esp)
+
+        movl    $1, %eax
+        movl    distbits_state(state_r), %ecx
+        shll    %cl, %eax
+        decl    %eax
+        movl    %eax, dmask(%esp)
+
+        movl    wsize_state(state_r), %eax
+        movl    write_state(state_r), %ecx
+        movl    window_state(state_r), %edx
+
+        movl    %eax, wsize(%esp)
+        movl    %ecx, write(%esp)
+        movl    %edx, window(%esp)
+
+        movl    hold_state(state_r), %ebp
+        movl    bits_state(state_r), %ebx
+
+#undef strm_r
+#undef state_r
+
+#define in_r       %esi
+#define from_r     %esi
+#define out_r      %edi
+
+        movl    in(%esp), in_r
+        movl    last(%esp), %ecx
+        cmpl    in_r, %ecx
+        ja      .L_align_long           /* if in < last */
+
+        addl    $11, %ecx               /* ecx = &in[ avail_in ] */
+        subl    in_r, %ecx              /* ecx = avail_in */
+        movl    $12, %eax
+        subl    %ecx, %eax              /* eax = 12 - avail_in */
+        leal    buf(%esp), %edi
+        rep     movsb                   /* memcpy( buf, in, avail_in ) */
+        movl    %eax, %ecx
+        xorl    %eax, %eax
+        rep     stosb         /* memset( &buf[ avail_in ], 0, 12 - avail_in ) */
+        leal    buf(%esp), in_r         /* in = buf */
+        movl    in_r, last(%esp)        /* last = in, do just one iteration */
+        jmp     .L_is_aligned
+
+        /* align in_r on long boundary */
+.L_align_long:
+        testl   $3, in_r
+        jz      .L_is_aligned
+        xorl    %eax, %eax
+        movb    (in_r), %al
+        incl    in_r
+        movl    %ebx, %ecx
+        addl    $8, %ebx
+        shll    %cl, %eax
+        orl     %eax, %ebp
+        jmp     .L_align_long
+
+.L_is_aligned:
+        movl    out(%esp), out_r
+
+#if defined( NO_MMX )
+        jmp     .L_do_loop
+#endif
+
+#if defined( USE_MMX )
+        jmp     .L_init_mmx
+#endif
+
+/*** Runtime MMX check ***/
+
+#if defined( RUN_TIME_MMX )
+.L_check_mmx:
+        cmpl    $DO_USE_MMX, inflate_fast_use_mmx
+        je      .L_init_mmx
+        ja      .L_do_loop /* > 2 */
+
+        pushl   %eax
+        pushl   %ebx
+        pushl   %ecx
+        pushl   %edx
+        pushf
+        movl    (%esp), %eax      /* copy eflags to eax */
+        xorl    $0x200000, (%esp) /* try toggling ID bit of eflags (bit 21)
+                                   * to see if cpu supports cpuid...
+                                   * ID bit method not supported by NexGen but
+                                   * bios may load a cpuid instruction and
+                                   * cpuid may be disabled on Cyrix 5-6x86 */
+        popf
+        pushf
+        popl    %edx              /* copy new eflags to edx */
+        xorl    %eax, %edx        /* test if ID bit is flipped */
+        jz      .L_dont_use_mmx   /* not flipped if zero */
+        xorl    %eax, %eax
+        cpuid
+        cmpl    $0x756e6547, %ebx /* check for GenuineIntel in ebx,ecx,edx */
+        jne     .L_dont_use_mmx
+        cmpl    $0x6c65746e, %ecx
+        jne     .L_dont_use_mmx
+        cmpl    $0x49656e69, %edx
+        jne     .L_dont_use_mmx
+        movl    $1, %eax
+        cpuid                     /* get cpu features */
+        shrl    $8, %eax
+        andl    $15, %eax
+        cmpl    $6, %eax          /* check for Pentium family, is 0xf for P4 */
+        jne     .L_dont_use_mmx
+        testl   $0x800000, %edx   /* test if MMX feature is set (bit 23) */
+        jnz     .L_use_mmx
+        jmp     .L_dont_use_mmx
+.L_use_mmx:
+        movl    $DO_USE_MMX, inflate_fast_use_mmx
+        jmp     .L_check_mmx_pop
+.L_dont_use_mmx:
+        movl    $DONT_USE_MMX, inflate_fast_use_mmx
+.L_check_mmx_pop:
+        popl    %edx
+        popl    %ecx
+        popl    %ebx
+        popl    %eax
+        jmp     .L_check_mmx
+#endif
+
+
+/*** Non-MMX code ***/
+
+#if defined ( NO_MMX ) || defined( RUN_TIME_MMX )
+
+#define hold_r     %ebp
+#define bits_r     %bl
+#define bitslong_r %ebx
+
+.align 32,0x90
+.L_while_test:
+        /* while (in < last && out < end)
+         */
+        cmpl    out_r, end(%esp)
+        jbe     .L_break_loop           /* if (out >= end) */
+
+        cmpl    in_r, last(%esp)
+        jbe     .L_break_loop
+
+.L_do_loop:
+        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out
+         *
+         * do {
+         *   if (bits < 15) {
+         *     hold |= *((unsigned short *)in)++ << bits;
+         *     bits += 16
+         *   }
+         *   this = lcode[hold & lmask]
+         */
+        cmpb    $15, bits_r
+        ja      .L_get_length_code      /* if (15 < bits) */
+
+        xorl    %eax, %eax
+        lodsw                           /* al = *(ushort *)in++ */
+        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
+        addb    $16, bits_r             /* bits += 16 */
+        shll    %cl, %eax
+        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
+
+.L_get_length_code:
+        movl    lmask(%esp), %edx       /* edx = lmask */
+        movl    lcode(%esp), %ecx       /* ecx = lcode */
+        andl    hold_r, %edx            /* edx &= hold */
+        movl    (%ecx,%edx,4), %eax     /* eax = lcode[hold & lmask] */
+
+.L_dolen:
+        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out
+         *
+         * dolen:
+         *    bits -= this.bits;
+         *    hold >>= this.bits
+         */
+        movb    %ah, %cl                /* cl = this.bits */
+        subb    %ah, bits_r             /* bits -= this.bits */
+        shrl    %cl, hold_r             /* hold >>= this.bits */
+
+        /* check if op is a literal
+         * if (op == 0) {
+         *    PUP(out) = this.val;
+         *  }
+         */
+        testb   %al, %al
+        jnz     .L_test_for_length_base /* if (op != 0) 45.7% */
+
+        shrl    $16, %eax               /* output this.val char */
+        stosb
+        jmp     .L_while_test
+
+.L_test_for_length_base:
+        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = len
+         *
+         * else if (op & 16) {
+         *   len = this.val
+         *   op &= 15
+         *   if (op) {
+         *     if (op > bits) {
+         *       hold |= *((unsigned short *)in)++ << bits;
+         *       bits += 16
+         *     }
+         *     len += hold & mask[op];
+         *     bits -= op;
+         *     hold >>= op;
+         *   }
+         */
+#define len_r %edx
+        movl    %eax, len_r             /* len = this */
+        shrl    $16, len_r              /* len = this.val */
+        movb    %al, %cl
+
+        testb   $16, %al
+        jz      .L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
+        andb    $15, %cl                /* op &= 15 */
+        jz      .L_save_len             /* if (!op) */
+        cmpb    %cl, bits_r
+        jae     .L_add_bits_to_len      /* if (op <= bits) */
+
+        movb    %cl, %ch                /* stash op in ch, freeing cl */
+        xorl    %eax, %eax
+        lodsw                           /* al = *(ushort *)in++ */
+        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
+        addb    $16, bits_r             /* bits += 16 */
+        shll    %cl, %eax
+        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
+        movb    %ch, %cl                /* move op back to ecx */
+
+.L_add_bits_to_len:
+        movl    $1, %eax
+        shll    %cl, %eax
+        decl    %eax
+        subb    %cl, bits_r
+        andl    hold_r, %eax            /* eax &= hold */
+        shrl    %cl, hold_r
+        addl    %eax, len_r             /* len += hold & mask[op] */
+
+.L_save_len:
+        movl    len_r, len(%esp)        /* save len */
+#undef  len_r
+
+.L_decode_distance:
+        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = dist
+         *
+         *   if (bits < 15) {
+         *     hold |= *((unsigned short *)in)++ << bits;
+         *     bits += 16
+         *   }
+         *   this = dcode[hold & dmask];
+         * dodist:
+         *   bits -= this.bits;
+         *   hold >>= this.bits;
+         *   op = this.op;
+         */
+
+        cmpb    $15, bits_r
+        ja      .L_get_distance_code    /* if (15 < bits) */
+
+        xorl    %eax, %eax
+        lodsw                           /* al = *(ushort *)in++ */
+        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
+        addb    $16, bits_r             /* bits += 16 */
+        shll    %cl, %eax
+        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
+
+.L_get_distance_code:
+        movl    dmask(%esp), %edx       /* edx = dmask */
+        movl    dcode(%esp), %ecx       /* ecx = dcode */
+        andl    hold_r, %edx            /* edx &= hold */
+        movl    (%ecx,%edx,4), %eax     /* eax = dcode[hold & dmask] */
+
+#define dist_r %edx
+.L_dodist:
+        movl    %eax, dist_r            /* dist = this */
+        shrl    $16, dist_r             /* dist = this.val */
+        movb    %ah, %cl
+        subb    %ah, bits_r             /* bits -= this.bits */
+        shrl    %cl, hold_r             /* hold >>= this.bits */
+
+        /* if (op & 16) {
+         *   dist = this.val
+         *   op &= 15
+         *   if (op > bits) {
+         *     hold |= *((unsigned short *)in)++ << bits;
+         *     bits += 16
+         *   }
+         *   dist += hold & mask[op];
+         *   bits -= op;
+         *   hold >>= op;
+         */
+        movb    %al, %cl                /* cl = this.op */
+
+        testb   $16, %al                /* if ((op & 16) == 0) */
+        jz      .L_test_for_second_level_dist
+        andb    $15, %cl                /* op &= 15 */
+        jz      .L_check_dist_one
+        cmpb    %cl, bits_r
+        jae     .L_add_bits_to_dist     /* if (op <= bits) 97.6% */
+
+        movb    %cl, %ch                /* stash op in ch, freeing cl */
+        xorl    %eax, %eax
+        lodsw                           /* al = *(ushort *)in++ */
+        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
+        addb    $16, bits_r             /* bits += 16 */
+        shll    %cl, %eax
+        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
+        movb    %ch, %cl                /* move op back to ecx */
+
+.L_add_bits_to_dist:
+        movl    $1, %eax
+        shll    %cl, %eax
+        decl    %eax                    /* (1 << op) - 1 */
+        subb    %cl, bits_r
+        andl    hold_r, %eax            /* eax &= hold */
+        shrl    %cl, hold_r
+        addl    %eax, dist_r            /* dist += hold & ((1 << op) - 1) */
+        jmp     .L_check_window
+
+.L_check_window:
+        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
+         *       %ecx = nbytes
+         *
+         * nbytes = out - beg;
+         * if (dist <= nbytes) {
+         *   from = out - dist;
+         *   do {
+         *     PUP(out) = PUP(from);
+         *   } while (--len > 0) {
+         * }
+         */
+
+        movl    in_r, in(%esp)          /* save in so from can use it's reg */
+        movl    out_r, %eax
+        subl    beg(%esp), %eax         /* nbytes = out - beg */
+
+        cmpl    dist_r, %eax
+        jb      .L_clip_window          /* if (dist > nbytes) 4.2% */
+
+        movl    len(%esp), %ecx
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+
+        subl    $3, %ecx
+        movb    (from_r), %al
+        movb    %al, (out_r)
+        movb    1(from_r), %al
+        movb    2(from_r), %dl
+        addl    $3, from_r
+        movb    %al, 1(out_r)
+        movb    %dl, 2(out_r)
+        addl    $3, out_r
+        rep     movsb
+
+        movl    in(%esp), in_r          /* move in back to %esi, toss from */
+        jmp     .L_while_test
+
+.align 16,0x90
+.L_check_dist_one:
+        cmpl    $1, dist_r
+        jne     .L_check_window
+        cmpl    out_r, beg(%esp)
+        je      .L_check_window
+
+        decl    out_r
+        movl    len(%esp), %ecx
+        movb    (out_r), %al
+        subl    $3, %ecx
+
+        movb    %al, 1(out_r)
+        movb    %al, 2(out_r)
+        movb    %al, 3(out_r)
+        addl    $4, out_r
+        rep     stosb
+
+        jmp     .L_while_test
+
+.align 16,0x90
+.L_test_for_second_level_length:
+        /* else if ((op & 64) == 0) {
+         *   this = lcode[this.val + (hold & mask[op])];
+         * }
+         */
+        testb   $64, %al
+        jnz     .L_test_for_end_of_block  /* if ((op & 64) != 0) */
+
+        movl    $1, %eax
+        shll    %cl, %eax
+        decl    %eax
+        andl    hold_r, %eax            /* eax &= hold */
+        addl    %edx, %eax              /* eax += this.val */
+        movl    lcode(%esp), %edx       /* edx = lcode */
+        movl    (%edx,%eax,4), %eax     /* eax = lcode[val + (hold&mask[op])] */
+        jmp     .L_dolen
+
+.align 16,0x90
+.L_test_for_second_level_dist:
+        /* else if ((op & 64) == 0) {
+         *   this = dcode[this.val + (hold & mask[op])];
+         * }
+         */
+        testb   $64, %al
+        jnz     .L_invalid_distance_code  /* if ((op & 64) != 0) */
+
+        movl    $1, %eax
+        shll    %cl, %eax
+        decl    %eax
+        andl    hold_r, %eax            /* eax &= hold */
+        addl    %edx, %eax              /* eax += this.val */
+        movl    dcode(%esp), %edx       /* edx = dcode */
+        movl    (%edx,%eax,4), %eax     /* eax = dcode[val + (hold&mask[op])] */
+        jmp     .L_dodist
+
+.align 16,0x90
+.L_clip_window:
+        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
+         *       %ecx = nbytes
+         *
+         * else {
+         *   if (dist > wsize) {
+         *     invalid distance
+         *   }
+         *   from = window;
+         *   nbytes = dist - nbytes;
+         *   if (write == 0) {
+         *     from += wsize - nbytes;
+         */
+#define nbytes_r %ecx
+        movl    %eax, nbytes_r
+        movl    wsize(%esp), %eax       /* prepare for dist compare */
+        negl    nbytes_r                /* nbytes = -nbytes */
+        movl    window(%esp), from_r    /* from = window */
+
+        cmpl    dist_r, %eax
+        jb      .L_invalid_distance_too_far /* if (dist > wsize) */
+
+        addl    dist_r, nbytes_r        /* nbytes = dist - nbytes */
+        cmpl    $0, write(%esp)
+        jne     .L_wrap_around_window   /* if (write != 0) */
+
+        subl    nbytes_r, %eax
+        addl    %eax, from_r            /* from += wsize - nbytes */
+
+        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
+         *       %ecx = nbytes, %eax = len
+         *
+         *     if (nbytes < len) {
+         *       len -= nbytes;
+         *       do {
+         *         PUP(out) = PUP(from);
+         *       } while (--nbytes);
+         *       from = out - dist;
+         *     }
+         *   }
+         */
+#define len_r %eax
+        movl    len(%esp), len_r
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1             /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+        jmp     .L_do_copy1
+
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1             /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+        jmp     .L_do_copy1
+
+.L_wrap_around_window:
+        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
+         *       %ecx = nbytes, %eax = write, %eax = len
+         *
+         *   else if (write < nbytes) {
+         *     from += wsize + write - nbytes;
+         *     nbytes -= write;
+         *     if (nbytes < len) {
+         *       len -= nbytes;
+         *       do {
+         *         PUP(out) = PUP(from);
+         *       } while (--nbytes);
+         *       from = window;
+         *       nbytes = write;
+         *       if (nbytes < len) {
+         *         len -= nbytes;
+         *         do {
+         *           PUP(out) = PUP(from);
+         *         } while(--nbytes);
+         *         from = out - dist;
+         *       }
+         *     }
+         *   }
+         */
+#define write_r %eax
+        movl    write(%esp), write_r
+        cmpl    write_r, nbytes_r
+        jbe     .L_contiguous_in_window /* if (write >= nbytes) */
+
+        addl    wsize(%esp), from_r
+        addl    write_r, from_r
+        subl    nbytes_r, from_r        /* from += wsize + write - nbytes */
+        subl    write_r, nbytes_r       /* nbytes -= write */
+#undef write_r
+
+        movl    len(%esp), len_r
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1             /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    window(%esp), from_r    /* from = window */
+        movl    write(%esp), nbytes_r   /* nbytes = write */
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1             /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+        jmp     .L_do_copy1
+
+.L_contiguous_in_window:
+        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
+         *       %ecx = nbytes, %eax = write, %eax = len
+         *
+         *   else {
+         *     from += write - nbytes;
+         *     if (nbytes < len) {
+         *       len -= nbytes;
+         *       do {
+         *         PUP(out) = PUP(from);
+         *       } while (--nbytes);
+         *       from = out - dist;
+         *     }
+         *   }
+         */
+#define write_r %eax
+        addl    write_r, from_r
+        subl    nbytes_r, from_r        /* from += write - nbytes */
+#undef write_r
+
+        movl    len(%esp), len_r
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1             /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+
+.L_do_copy1:
+        /* regs: %esi = from, %esi = in, %ebp = hold, %bl = bits, %edi = out
+         *       %eax = len
+         *
+         *     while (len > 0) {
+         *       PUP(out) = PUP(from);
+         *       len--;
+         *     }
+         *   }
+         * } while (in < last && out < end);
+         */
+#undef nbytes_r
+#define in_r %esi
+        movl    len_r, %ecx
+        rep     movsb
+
+        movl    in(%esp), in_r          /* move in back to %esi, toss from */
+        jmp     .L_while_test
+
+#undef len_r
+#undef dist_r
+
+#endif /* NO_MMX || RUN_TIME_MMX */
+
+
+/*** MMX code ***/
+
+#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
+
+.align 32,0x90
+.L_init_mmx:
+        emms
+
+#undef  bits_r
+#undef  bitslong_r
+#define bitslong_r %ebp
+#define hold_mm    %mm0
+        movd    %ebp, hold_mm
+        movl    %ebx, bitslong_r
+
+#define used_mm   %mm1
+#define dmask2_mm %mm2
+#define lmask2_mm %mm3
+#define lmask_mm  %mm4
+#define dmask_mm  %mm5
+#define tmp_mm    %mm6
+
+        movd    lmask(%esp), lmask_mm
+        movq    lmask_mm, lmask2_mm
+        movd    dmask(%esp), dmask_mm
+        movq    dmask_mm, dmask2_mm
+        pxor    used_mm, used_mm
+        movl    lcode(%esp), %ebx       /* ebx = lcode */
+        jmp     .L_do_loop_mmx
+
+.align 32,0x90
+.L_while_test_mmx:
+        /* while (in < last && out < end)
+         */
+        cmpl    out_r, end(%esp)
+        jbe     .L_break_loop           /* if (out >= end) */
+
+        cmpl    in_r, last(%esp)
+        jbe     .L_break_loop
+
+.L_do_loop_mmx:
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+
+        cmpl    $32, bitslong_r
+        ja      .L_get_length_code_mmx  /* if (32 < bits) */
+
+        movd    bitslong_r, tmp_mm
+        movd    (in_r), %mm7
+        addl    $4, in_r
+        psllq   tmp_mm, %mm7
+        addl    $32, bitslong_r
+        por     %mm7, hold_mm           /* hold_mm |= *((uint *)in)++ << bits */
+
+.L_get_length_code_mmx:
+        pand    hold_mm, lmask_mm
+        movd    lmask_mm, %eax
+        movq    lmask2_mm, lmask_mm
+        movl    (%ebx,%eax,4), %eax     /* eax = lcode[hold & lmask] */
+
+.L_dolen_mmx:
+        movzbl  %ah, %ecx               /* ecx = this.bits */
+        movd    %ecx, used_mm
+        subl    %ecx, bitslong_r        /* bits -= this.bits */
+
+        testb   %al, %al
+        jnz     .L_test_for_length_base_mmx /* if (op != 0) 45.7% */
+
+        shrl    $16, %eax               /* output this.val char */
+        stosb
+        jmp     .L_while_test_mmx
+
+.L_test_for_length_base_mmx:
+#define len_r  %edx
+        movl    %eax, len_r             /* len = this */
+        shrl    $16, len_r              /* len = this.val */
+
+        testb   $16, %al
+        jz      .L_test_for_second_level_length_mmx /* if ((op & 16) == 0) 8% */
+        andl    $15, %eax               /* op &= 15 */
+        jz      .L_decode_distance_mmx  /* if (!op) */
+
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+        movd    %eax, used_mm
+        movd    hold_mm, %ecx
+        subl    %eax, bitslong_r
+        andl    .L_mask(,%eax,4), %ecx
+        addl    %ecx, len_r             /* len += hold & mask[op] */
+
+.L_decode_distance_mmx:
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+
+        cmpl    $32, bitslong_r
+        ja      .L_get_dist_code_mmx    /* if (32 < bits) */
+
+        movd    bitslong_r, tmp_mm
+        movd    (in_r), %mm7
+        addl    $4, in_r
+        psllq   tmp_mm, %mm7
+        addl    $32, bitslong_r
+        por     %mm7, hold_mm           /* hold_mm |= *((uint *)in)++ << bits */
+
+.L_get_dist_code_mmx:
+        movl    dcode(%esp), %ebx       /* ebx = dcode */
+        pand    hold_mm, dmask_mm
+        movd    dmask_mm, %eax
+        movq    dmask2_mm, dmask_mm
+        movl    (%ebx,%eax,4), %eax     /* eax = dcode[hold & lmask] */
+
+.L_dodist_mmx:
+#define dist_r %ebx
+        movzbl  %ah, %ecx               /* ecx = this.bits */
+        movl    %eax, dist_r
+        shrl    $16, dist_r             /* dist  = this.val */
+        subl    %ecx, bitslong_r        /* bits -= this.bits */
+        movd    %ecx, used_mm
+
+        testb   $16, %al                /* if ((op & 16) == 0) */
+        jz      .L_test_for_second_level_dist_mmx
+        andl    $15, %eax               /* op &= 15 */
+        jz      .L_check_dist_one_mmx
+
+.L_add_bits_to_dist_mmx:
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+        movd    %eax, used_mm           /* save bit length of current op */
+        movd    hold_mm, %ecx           /* get the next bits on input stream */
+        subl    %eax, bitslong_r        /* bits -= op bits */
+        andl    .L_mask(,%eax,4), %ecx  /* ecx   = hold & mask[op] */
+        addl    %ecx, dist_r            /* dist += hold & mask[op] */
+
+.L_check_window_mmx:
+        movl    in_r, in(%esp)          /* save in so from can use it's reg */
+        movl    out_r, %eax
+        subl    beg(%esp), %eax         /* nbytes = out - beg */
+
+        cmpl    dist_r, %eax
+        jb      .L_clip_window_mmx      /* if (dist > nbytes) 4.2% */
+
+        movl    len_r, %ecx
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+
+        subl    $3, %ecx
+        movb    (from_r), %al
+        movb    %al, (out_r)
+        movb    1(from_r), %al
+        movb    2(from_r), %dl
+        addl    $3, from_r
+        movb    %al, 1(out_r)
+        movb    %dl, 2(out_r)
+        addl    $3, out_r
+        rep     movsb
+
+        movl    in(%esp), in_r          /* move in back to %esi, toss from */
+        movl    lcode(%esp), %ebx       /* move lcode back to %ebx, toss dist */
+        jmp     .L_while_test_mmx
+
+.align 16,0x90
+.L_check_dist_one_mmx:
+        cmpl    $1, dist_r
+        jne     .L_check_window_mmx
+        cmpl    out_r, beg(%esp)
+        je      .L_check_window_mmx
+
+        decl    out_r
+        movl    len_r, %ecx
+        movb    (out_r), %al
+        subl    $3, %ecx
+
+        movb    %al, 1(out_r)
+        movb    %al, 2(out_r)
+        movb    %al, 3(out_r)
+        addl    $4, out_r
+        rep     stosb
+
+        movl    lcode(%esp), %ebx       /* move lcode back to %ebx, toss dist */
+        jmp     .L_while_test_mmx
+
+.align 16,0x90
+.L_test_for_second_level_length_mmx:
+        testb   $64, %al
+        jnz     .L_test_for_end_of_block  /* if ((op & 64) != 0) */
+
+        andl    $15, %eax
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+        movd    hold_mm, %ecx
+        andl    .L_mask(,%eax,4), %ecx
+        addl    len_r, %ecx
+        movl    (%ebx,%ecx,4), %eax     /* eax = lcode[hold & lmask] */
+        jmp     .L_dolen_mmx
+
+.align 16,0x90
+.L_test_for_second_level_dist_mmx:
+        testb   $64, %al
+        jnz     .L_invalid_distance_code  /* if ((op & 64) != 0) */
+
+        andl    $15, %eax
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+        movd    hold_mm, %ecx
+        andl    .L_mask(,%eax,4), %ecx
+        movl    dcode(%esp), %eax       /* ecx = dcode */
+        addl    dist_r, %ecx
+        movl    (%eax,%ecx,4), %eax     /* eax = lcode[hold & lmask] */
+        jmp     .L_dodist_mmx
+
+.align 16,0x90
+.L_clip_window_mmx:
+#define nbytes_r %ecx
+        movl    %eax, nbytes_r
+        movl    wsize(%esp), %eax       /* prepare for dist compare */
+        negl    nbytes_r                /* nbytes = -nbytes */
+        movl    window(%esp), from_r    /* from = window */
+
+        cmpl    dist_r, %eax
+        jb      .L_invalid_distance_too_far /* if (dist > wsize) */
+
+        addl    dist_r, nbytes_r        /* nbytes = dist - nbytes */
+        cmpl    $0, write(%esp)
+        jne     .L_wrap_around_window_mmx /* if (write != 0) */
+
+        subl    nbytes_r, %eax
+        addl    %eax, from_r            /* from += wsize - nbytes */
+
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+        jmp     .L_do_copy1_mmx
+
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+        jmp     .L_do_copy1_mmx
+
+.L_wrap_around_window_mmx:
+#define write_r %eax
+        movl    write(%esp), write_r
+        cmpl    write_r, nbytes_r
+        jbe     .L_contiguous_in_window_mmx /* if (write >= nbytes) */
+
+        addl    wsize(%esp), from_r
+        addl    write_r, from_r
+        subl    nbytes_r, from_r        /* from += wsize + write - nbytes */
+        subl    write_r, nbytes_r       /* nbytes -= write */
+#undef write_r
+
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    window(%esp), from_r    /* from = window */
+        movl    write(%esp), nbytes_r   /* nbytes = write */
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+        jmp     .L_do_copy1_mmx
+
+.L_contiguous_in_window_mmx:
+#define write_r %eax
+        addl    write_r, from_r
+        subl    nbytes_r, from_r        /* from += write - nbytes */
+#undef write_r
+
+        cmpl    nbytes_r, len_r
+        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
+
+        subl    nbytes_r, len_r         /* len -= nbytes */
+        rep     movsb
+        movl    out_r, from_r
+        subl    dist_r, from_r          /* from = out - dist */
+
+.L_do_copy1_mmx:
+#undef nbytes_r
+#define in_r %esi
+        movl    len_r, %ecx
+        rep     movsb
+
+        movl    in(%esp), in_r          /* move in back to %esi, toss from */
+        movl    lcode(%esp), %ebx       /* move lcode back to %ebx, toss dist */
+        jmp     .L_while_test_mmx
+
+#undef hold_r
+#undef bitslong_r
+
+#endif /* USE_MMX || RUN_TIME_MMX */
+
+
+/*** USE_MMX, NO_MMX, and RUNTIME_MMX from here on ***/
+
+.L_invalid_distance_code:
+        /* else {
+         *   strm->msg = "invalid distance code";
+         *   state->mode = BAD;
+         * }
+         */
+        movl    $.L_invalid_distance_code_msg, %ecx
+        movl    $INFLATE_MODE_BAD, %edx
+        jmp     .L_update_stream_state
+
+.L_test_for_end_of_block:
+        /* else if (op & 32) {
+         *   state->mode = TYPE;
+         *   break;
+         * }
+         */
+        testb   $32, %al
+        jz      .L_invalid_literal_length_code  /* if ((op & 32) == 0) */
+
+        movl    $0, %ecx
+        movl    $INFLATE_MODE_TYPE, %edx
+        jmp     .L_update_stream_state
+
+.L_invalid_literal_length_code:
+        /* else {
+         *   strm->msg = "invalid literal/length code";
+         *   state->mode = BAD;
+         * }
+         */
+        movl    $.L_invalid_literal_length_code_msg, %ecx
+        movl    $INFLATE_MODE_BAD, %edx
+        jmp     .L_update_stream_state
+
+.L_invalid_distance_too_far:
+        /* strm->msg = "invalid distance too far back";
+         * state->mode = BAD;
+         */
+        movl    in(%esp), in_r          /* from_r has in's reg, put in back */
+        movl    $.L_invalid_distance_too_far_msg, %ecx
+        movl    $INFLATE_MODE_BAD, %edx
+        jmp     .L_update_stream_state
+
+.L_update_stream_state:
+        /* set strm->msg = %ecx, strm->state->mode = %edx */
+        movl    strm_sp(%esp), %eax
+        testl   %ecx, %ecx              /* if (msg != NULL) */
+        jz      .L_skip_msg
+        movl    %ecx, msg_strm(%eax)    /* strm->msg = msg */
+.L_skip_msg:
+        movl    state_strm(%eax), %eax  /* state = strm->state */
+        movl    %edx, mode_state(%eax)  /* state->mode = edx (BAD | TYPE) */
+        jmp     .L_break_loop
+
+.align 32,0x90
+.L_break_loop:
+
+/*
+ * Regs:
+ *
+ * bits = %ebp when mmx, and in %ebx when non-mmx
+ * hold = %hold_mm when mmx, and in %ebp when non-mmx
+ * in   = %esi
+ * out  = %edi
+ */
+
+#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
+
+#if defined( RUN_TIME_MMX )
+
+        cmpl    $DO_USE_MMX, inflate_fast_use_mmx
+        jne     .L_update_next_in
+
+#endif /* RUN_TIME_MMX */
+
+        movl    %ebp, %ebx
+
+.L_update_next_in:
+
+#endif
+
+#define strm_r  %eax
+#define state_r %edx
+
+        /* len = bits >> 3;
+         * in -= len;
+         * bits -= len << 3;
+         * hold &= (1U << bits) - 1;
+         * state->hold = hold;
+         * state->bits = bits;
+         * strm->next_in = in;
+         * strm->next_out = out;
+         */
+        movl    strm_sp(%esp), strm_r
+        movl    %ebx, %ecx
+        movl    state_strm(strm_r), state_r
+        shrl    $3, %ecx
+        subl    %ecx, in_r
+        shll    $3, %ecx
+        subl    %ecx, %ebx
+        movl    out_r, next_out_strm(strm_r)
+        movl    %ebx, bits_state(state_r)
+        movl    %ebx, %ecx
+
+        leal    buf(%esp), %ebx
+        cmpl    %ebx, last(%esp)
+        jne     .L_buf_not_used         /* if buf != last */
+
+        subl    %ebx, in_r              /* in -= buf */
+        movl    next_in_strm(strm_r), %ebx
+        movl    %ebx, last(%esp)        /* last = strm->next_in */
+        addl    %ebx, in_r              /* in += strm->next_in */
+        movl    avail_in_strm(strm_r), %ebx
+        subl    $11, %ebx
+        addl    %ebx, last(%esp)    /* last = &strm->next_in[ avail_in - 11 ] */
+
+.L_buf_not_used:
+        movl    in_r, next_in_strm(strm_r)
+
+        movl    $1, %ebx
+        shll    %cl, %ebx
+        decl    %ebx
+
+#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
+
+#if defined( RUN_TIME_MMX )
+
+        cmpl    $DO_USE_MMX, inflate_fast_use_mmx
+        jne     .L_update_hold
+
+#endif /* RUN_TIME_MMX */
+
+        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
+        movd    hold_mm, %ebp
+
+        emms
+
+.L_update_hold:
+
+#endif /* USE_MMX || RUN_TIME_MMX */
+
+        andl    %ebx, %ebp
+        movl    %ebp, hold_state(state_r)
+
+#define last_r %ebx
+
+        /* strm->avail_in = in < last ? 11 + (last - in) : 11 - (in - last) */
+        movl    last(%esp), last_r
+        cmpl    in_r, last_r
+        jbe     .L_last_is_smaller     /* if (in >= last) */
+
+        subl    in_r, last_r           /* last -= in */
+        addl    $11, last_r            /* last += 11 */
+        movl    last_r, avail_in_strm(strm_r)
+        jmp     .L_fixup_out
+.L_last_is_smaller:
+        subl    last_r, in_r           /* in -= last */
+        negl    in_r                   /* in = -in */
+        addl    $11, in_r              /* in += 11 */
+        movl    in_r, avail_in_strm(strm_r)
+
+#undef last_r
+#define end_r %ebx
+
+.L_fixup_out:
+        /* strm->avail_out = out < end ? 257 + (end - out) : 257 - (out - end)*/
+        movl    end(%esp), end_r
+        cmpl    out_r, end_r
+        jbe     .L_end_is_smaller      /* if (out >= end) */
+
+        subl    out_r, end_r           /* end -= out */
+        addl    $257, end_r            /* end += 257 */
+        movl    end_r, avail_out_strm(strm_r)
+        jmp     .L_done
+.L_end_is_smaller:
+        subl    end_r, out_r           /* out -= end */
+        negl    out_r                  /* out = -out */
+        addl    $257, out_r            /* out += 257 */
+        movl    out_r, avail_out_strm(strm_r)
+
+#undef end_r
+#undef strm_r
+#undef state_r
+
+.L_done:
+        addl    $local_var_size, %esp
+        popf
+        popl    %ebx
+        popl    %ebp
+        popl    %esi
+        popl    %edi
+        ret
+
+#if defined( GAS_ELF )
+/* elf info */
+.type inflate_fast,@function
+.size inflate_fast,.-inflate_fast
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/test.cpp b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/test.cpp
new file mode 100644
index 000000000..7d265b3b5
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/test.cpp
@@ -0,0 +1,24 @@
+
+#include "zfstream.h"
+
+int main() {
+
+  // Construct a stream object with this filebuffer.  Anything sent
+  // to this stream will go to standard out.
+  gzofstream os( 1, ios::out );
+
+  // This text is getting compressed and sent to stdout.
+  // To prove this, run 'test | zcat'.
+  os << "Hello, Mommy" << endl;
+
+  os << setcompressionlevel( Z_NO_COMPRESSION );
+  os << "hello, hello, hi, ho!" << endl;
+
+  setcompressionlevel( os, Z_DEFAULT_COMPRESSION )
+    << "I'm compressing again" << endl;
+
+  os.close();
+
+  return 0;
+
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/zfstream.cpp b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/zfstream.cpp
new file mode 100644
index 000000000..d0cd85faa
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/zfstream.cpp
@@ -0,0 +1,329 @@
+
+#include "zfstream.h"
+
+gzfilebuf::gzfilebuf() :
+  file(NULL),
+  mode(0),
+  own_file_descriptor(0)
+{ }
+
+gzfilebuf::~gzfilebuf() {
+
+  sync();
+  if ( own_file_descriptor )
+    close();
+
+}
+
+gzfilebuf *gzfilebuf::open( const char *name,
+                            int io_mode ) {
+
+  if ( is_open() )
+    return NULL;
+
+  char char_mode[10];
+  char *p = char_mode;
+
+  if ( io_mode & ios::in ) {
+    mode = ios::in;
+    *p++ = 'r';
+  } else if ( io_mode & ios::app ) {
+    mode = ios::app;
+    *p++ = 'a';
+  } else {
+    mode = ios::out;
+    *p++ = 'w';
+  }
+
+  if ( io_mode & ios::binary ) {
+    mode |= ios::binary;
+    *p++ = 'b';
+  }
+
+  // Hard code the compression level
+  if ( io_mode & (ios::out|ios::app )) {
+    *p++ = '9';
+  }
+
+  // Put the end-of-string indicator
+  *p = '\0';
+
+  if ( (file = gzopen(name, char_mode)) == NULL )
+    return NULL;
+
+  own_file_descriptor = 1;
+
+  return this;
+
+}
+
+gzfilebuf *gzfilebuf::attach( int file_descriptor,
+                              int io_mode ) {
+
+  if ( is_open() )
+    return NULL;
+
+  char char_mode[10];
+  char *p = char_mode;
+
+  if ( io_mode & ios::in ) {
+    mode = ios::in;
+    *p++ = 'r';
+  } else if ( io_mode & ios::app ) {
+    mode = ios::app;
+    *p++ = 'a';
+  } else {
+    mode = ios::out;
+    *p++ = 'w';
+  }
+
+  if ( io_mode & ios::binary ) {
+    mode |= ios::binary;
+    *p++ = 'b';
+  }
+
+  // Hard code the compression level
+  if ( io_mode & (ios::out|ios::app )) {
+    *p++ = '9';
+  }
+
+  // Put the end-of-string indicator
+  *p = '\0';
+
+  if ( (file = gzdopen(file_descriptor, char_mode)) == NULL )
+    return NULL;
+
+  own_file_descriptor = 0;
+
+  return this;
+
+}
+
+gzfilebuf *gzfilebuf::close() {
+
+  if ( is_open() ) {
+
+    sync();
+    gzclose( file );
+    file = NULL;
+
+  }
+
+  return this;
+
+}
+
+int gzfilebuf::setcompressionlevel( int comp_level ) {
+
+  return gzsetparams(file, comp_level, -2);
+
+}
+
+int gzfilebuf::setcompressionstrategy( int comp_strategy ) {
+
+  return gzsetparams(file, -2, comp_strategy);
+
+}
+
+
+streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) {
+
+  return streampos(EOF);
+
+}
+
+int gzfilebuf::underflow() {
+
+  // If the file hasn't been opened for reading, error.
+  if ( !is_open() || !(mode & ios::in) )
+    return EOF;
+
+  // if a buffer doesn't exists, allocate one.
+  if ( !base() ) {
+
+    if ( (allocate()) == EOF )
+      return EOF;
+    setp(0,0);
+
+  } else {
+
+    if ( in_avail() )
+      return (unsigned char) *gptr();
+
+    if ( out_waiting() ) {
+      if ( flushbuf() == EOF )
+        return EOF;
+    }
+
+  }
+
+  // Attempt to fill the buffer.
+
+  int result = fillbuf();
+  if ( result == EOF ) {
+    // disable get area
+    setg(0,0,0);
+    return EOF;
+  }
+
+  return (unsigned char) *gptr();
+
+}
+
+int gzfilebuf::overflow( int c ) {
+
+  if ( !is_open() || !(mode & ios::out) )
+    return EOF;
+
+  if ( !base() ) {
+    if ( allocate() == EOF )
+      return EOF;
+    setg(0,0,0);
+  } else {
+    if (in_avail()) {
+        return EOF;
+    }
+    if (out_waiting()) {
+      if (flushbuf() == EOF)
+        return EOF;
+    }
+  }
+
+  int bl = blen();
+  setp( base(), base() + bl);
+
+  if ( c != EOF ) {
+
+    *pptr() = c;
+    pbump(1);
+
+  }
+
+  return 0;
+
+}
+
+int gzfilebuf::sync() {
+
+  if ( !is_open() )
+    return EOF;
+
+  if ( out_waiting() )
+    return flushbuf();
+
+  return 0;
+
+}
+
+int gzfilebuf::flushbuf() {
+
+  int n;
+  char *q;
+
+  q = pbase();
+  n = pptr() - q;
+
+  if ( gzwrite( file, q, n) < n )
+    return EOF;
+
+  setp(0,0);
+
+  return 0;
+
+}
+
+int gzfilebuf::fillbuf() {
+
+  int required;
+  char *p;
+
+  p = base();
+
+  required = blen();
+
+  int t = gzread( file, p, required );
+
+  if ( t <= 0) return EOF;
+
+  setg( base(), base(), base()+t);
+
+  return t;
+
+}
+
+gzfilestream_common::gzfilestream_common() :
+  ios( gzfilestream_common::rdbuf() )
+{ }
+
+gzfilestream_common::~gzfilestream_common()
+{ }
+
+void gzfilestream_common::attach( int fd, int io_mode ) {
+
+  if ( !buffer.attach( fd, io_mode) )
+    clear( ios::failbit | ios::badbit );
+  else
+    clear();
+
+}
+
+void gzfilestream_common::open( const char *name, int io_mode ) {
+
+  if ( !buffer.open( name, io_mode ) )
+    clear( ios::failbit | ios::badbit );
+  else
+    clear();
+
+}
+
+void gzfilestream_common::close() {
+
+  if ( !buffer.close() )
+    clear( ios::failbit | ios::badbit );
+
+}
+
+gzfilebuf *gzfilestream_common::rdbuf()
+{
+  return &buffer;
+}
+
+gzifstream::gzifstream() :
+  ios( gzfilestream_common::rdbuf() )
+{
+  clear( ios::badbit );
+}
+
+gzifstream::gzifstream( const char *name, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::open( name, io_mode );
+}
+
+gzifstream::gzifstream( int fd, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::attach( fd, io_mode );
+}
+
+gzifstream::~gzifstream() { }
+
+gzofstream::gzofstream() :
+  ios( gzfilestream_common::rdbuf() )
+{
+  clear( ios::badbit );
+}
+
+gzofstream::gzofstream( const char *name, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::open( name, io_mode );
+}
+
+gzofstream::gzofstream( int fd, int io_mode ) :
+  ios( gzfilestream_common::rdbuf() )
+{
+  gzfilestream_common::attach( fd, io_mode );
+}
+
+gzofstream::~gzofstream() { }
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/zfstream.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/zfstream.h
new file mode 100644
index 000000000..ed79098a3
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream/zfstream.h
@@ -0,0 +1,128 @@
+
+#ifndef zfstream_h
+#define zfstream_h
+
+#include <fstream.h>
+#include "zlib.h"
+
+class gzfilebuf : public streambuf {
+
+public:
+
+  gzfilebuf( );
+  virtual ~gzfilebuf();
+
+  gzfilebuf *open( const char *name, int io_mode );
+  gzfilebuf *attach( int file_descriptor, int io_mode );
+  gzfilebuf *close();
+
+  int setcompressionlevel( int comp_level );
+  int setcompressionstrategy( int comp_strategy );
+
+  inline int is_open() const { return (file !=NULL); }
+
+  virtual streampos seekoff( streamoff, ios::seek_dir, int );
+
+  virtual int sync();
+
+protected:
+
+  virtual int underflow();
+  virtual int overflow( int = EOF );
+
+private:
+
+  gzFile file;
+  short mode;
+  short own_file_descriptor;
+
+  int flushbuf();
+  int fillbuf();
+
+};
+
+class gzfilestream_common : virtual public ios {
+
+  friend class gzifstream;
+  friend class gzofstream;
+  friend gzofstream &setcompressionlevel( gzofstream &, int );
+  friend gzofstream &setcompressionstrategy( gzofstream &, int );
+
+public:
+  virtual ~gzfilestream_common();
+
+  void attach( int fd, int io_mode );
+  void open( const char *name, int io_mode );
+  void close();
+
+protected:
+  gzfilestream_common();
+
+private:
+  gzfilebuf *rdbuf();
+
+  gzfilebuf buffer;
+
+};
+
+class gzifstream : public gzfilestream_common, public istream {
+
+public:
+
+  gzifstream();
+  gzifstream( const char *name, int io_mode = ios::in );
+  gzifstream( int fd, int io_mode = ios::in );
+
+  virtual ~gzifstream();
+
+};
+
+class gzofstream : public gzfilestream_common, public ostream {
+
+public:
+
+  gzofstream();
+  gzofstream( const char *name, int io_mode = ios::out );
+  gzofstream( int fd, int io_mode = ios::out );
+
+  virtual ~gzofstream();
+
+};
+
+template<class T> class gzomanip {
+  friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &);
+public:
+  gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { }
+private:
+  gzofstream &(*func)(gzofstream &, T);
+  T val;
+};
+
+template<class T> gzofstream &operator<<(gzofstream &s, const gzomanip<T> &m)
+{
+  return (*m.func)(s, m.val);
+}
+
+inline gzofstream &setcompressionlevel( gzofstream &s, int l )
+{
+  (s.rdbuf())->setcompressionlevel(l);
+  return s;
+}
+
+inline gzofstream &setcompressionstrategy( gzofstream &s, int l )
+{
+  (s.rdbuf())->setcompressionstrategy(l);
+  return s;
+}
+
+inline gzomanip<int> setcompressionlevel(int l)
+{
+  return gzomanip<int>(&setcompressionlevel,l);
+}
+
+inline gzomanip<int> setcompressionstrategy(int l)
+{
+  return gzomanip<int>(&setcompressionstrategy,l);
+}
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream2/zstream.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream2/zstream.h
new file mode 100644
index 000000000..43d2332b7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream2/zstream.h
@@ -0,0 +1,307 @@
+/*
+ *
+ * Copyright (c) 1997
+ * Christian Michelsen Research AS
+ * Advanced Computing
+ * Fantoftvegen 38, 5036 BERGEN, Norway
+ * http://www.cmr.no
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation.  Christian Michelsen Research AS makes no
+ * representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ */
+
+#ifndef ZSTREAM__H
+#define ZSTREAM__H
+
+/*
+ * zstream.h - C++ interface to the 'zlib' general purpose compression library
+ * $Id: zstream.h 1.1 1997-06-25 12:00:56+02 tyge Exp tyge $
+ */
+
+#include <strstream.h>
+#include <string.h>
+#include <stdio.h>
+#include "zlib.h"
+
+#if defined(_WIN32)
+#   include <fcntl.h>
+#   include <io.h>
+#   define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#   define SET_BINARY_MODE(file)
+#endif
+
+class zstringlen {
+public:
+    zstringlen(class izstream&);
+    zstringlen(class ozstream&, const char*);
+    size_t value() const { return val.word; }
+private:
+    struct Val { unsigned char byte; size_t word; } val;
+};
+
+//  ----------------------------- izstream -----------------------------
+
+class izstream
+{
+    public:
+        izstream() : m_fp(0) {}
+        izstream(FILE* fp) : m_fp(0) { open(fp); }
+        izstream(const char* name) : m_fp(0) { open(name); }
+        ~izstream() { close(); }
+
+        /* Opens a gzip (.gz) file for reading.
+         * open() can be used to read a file which is not in gzip format;
+         * in this case read() will directly read from the file without
+         * decompression. errno can be checked to distinguish two error
+         * cases (if errno is zero, the zlib error is Z_MEM_ERROR).
+         */
+        void open(const char* name) {
+            if (m_fp) close();
+            m_fp = ::gzopen(name, "rb");
+        }
+
+        void open(FILE* fp) {
+            SET_BINARY_MODE(fp);
+            if (m_fp) close();
+            m_fp = ::gzdopen(fileno(fp), "rb");
+        }
+
+        /* Flushes all pending input if necessary, closes the compressed file
+         * and deallocates all the (de)compression state. The return value is
+         * the zlib error number (see function error() below).
+         */
+        int close() {
+            int r = ::gzclose(m_fp);
+            m_fp = 0; return r;
+        }
+
+        /* Binary read the given number of bytes from the compressed file.
+         */
+        int read(void* buf, size_t len) {
+            return ::gzread(m_fp, buf, len);
+        }
+
+        /* Returns the error message for the last error which occurred on the
+         * given compressed file. errnum is set to zlib error number. If an
+         * error occurred in the file system and not in the compression library,
+         * errnum is set to Z_ERRNO and the application may consult errno
+         * to get the exact error code.
+         */
+        const char* error(int* errnum) {
+            return ::gzerror(m_fp, errnum);
+        }
+
+        gzFile fp() { return m_fp; }
+
+    private:
+        gzFile m_fp;
+};
+
+/*
+ * Binary read the given (array of) object(s) from the compressed file.
+ * If the input file was not in gzip format, read() copies the objects number
+ * of bytes into the buffer.
+ * returns the number of uncompressed bytes actually read
+ * (0 for end of file, -1 for error).
+ */
+template <class T, class Items>
+inline int read(izstream& zs, T* x, Items items) {
+    return ::gzread(zs.fp(), x, items*sizeof(T));
+}
+
+/*
+ * Binary input with the '>' operator.
+ */
+template <class T>
+inline izstream& operator>(izstream& zs, T& x) {
+    ::gzread(zs.fp(), &x, sizeof(T));
+    return zs;
+}
+
+
+inline zstringlen::zstringlen(izstream& zs) {
+    zs > val.byte;
+    if (val.byte == 255) zs > val.word;
+    else val.word = val.byte;
+}
+
+/*
+ * Read length of string + the string with the '>' operator.
+ */
+inline izstream& operator>(izstream& zs, char* x) {
+    zstringlen len(zs);
+    ::gzread(zs.fp(), x, len.value());
+    x[len.value()] = '\0';
+    return zs;
+}
+
+inline char* read_string(izstream& zs) {
+    zstringlen len(zs);
+    char* x = new char[len.value()+1];
+    ::gzread(zs.fp(), x, len.value());
+    x[len.value()] = '\0';
+    return x;
+}
+
+// ----------------------------- ozstream -----------------------------
+
+class ozstream
+{
+    public:
+        ozstream() : m_fp(0), m_os(0) {
+        }
+        ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION)
+            : m_fp(0), m_os(0) {
+            open(fp, level);
+        }
+        ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION)
+            : m_fp(0), m_os(0) {
+            open(name, level);
+        }
+        ~ozstream() {
+            close();
+        }
+
+        /* Opens a gzip (.gz) file for writing.
+         * The compression level parameter should be in 0..9
+         * errno can be checked to distinguish two error cases
+         * (if errno is zero, the zlib error is Z_MEM_ERROR).
+         */
+        void open(const char* name, int level = Z_DEFAULT_COMPRESSION) {
+            char mode[4] = "wb\0";
+            if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
+            if (m_fp) close();
+            m_fp = ::gzopen(name, mode);
+        }
+
+        /* open from a FILE pointer.
+         */
+        void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) {
+            SET_BINARY_MODE(fp);
+            char mode[4] = "wb\0";
+            if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level;
+            if (m_fp) close();
+            m_fp = ::gzdopen(fileno(fp), mode);
+        }
+
+        /* Flushes all pending output if necessary, closes the compressed file
+         * and deallocates all the (de)compression state. The return value is
+         * the zlib error number (see function error() below).
+         */
+        int close() {
+            if (m_os) {
+                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
+                delete[] m_os->str(); delete m_os; m_os = 0;
+            }
+            int r = ::gzclose(m_fp); m_fp = 0; return r;
+        }
+
+        /* Binary write the given number of bytes into the compressed file.
+         */
+        int write(const void* buf, size_t len) {
+            return ::gzwrite(m_fp, (voidp) buf, len);
+        }
+
+        /* Flushes all pending output into the compressed file. The parameter
+         * _flush is as in the deflate() function. The return value is the zlib
+         * error number (see function gzerror below). flush() returns Z_OK if
+         * the flush_ parameter is Z_FINISH and all output could be flushed.
+         * flush() should be called only when strictly necessary because it can
+         * degrade compression.
+         */
+        int flush(int _flush) {
+            os_flush();
+            return ::gzflush(m_fp, _flush);
+        }
+
+        /* Returns the error message for the last error which occurred on the
+         * given compressed file. errnum is set to zlib error number. If an
+         * error occurred in the file system and not in the compression library,
+         * errnum is set to Z_ERRNO and the application may consult errno
+         * to get the exact error code.
+         */
+        const char* error(int* errnum) {
+            return ::gzerror(m_fp, errnum);
+        }
+
+        gzFile fp() { return m_fp; }
+
+        ostream& os() {
+            if (m_os == 0) m_os = new ostrstream;
+            return *m_os;
+        }
+
+        void os_flush() {
+            if (m_os && m_os->pcount()>0) {
+                ostrstream* oss = new ostrstream;
+                oss->fill(m_os->fill());
+                oss->flags(m_os->flags());
+                oss->precision(m_os->precision());
+                oss->width(m_os->width());
+                ::gzwrite(m_fp, m_os->str(), m_os->pcount());
+                delete[] m_os->str(); delete m_os; m_os = oss;
+            }
+        }
+
+    private:
+        gzFile m_fp;
+        ostrstream* m_os;
+};
+
+/*
+ * Binary write the given (array of) object(s) into the compressed file.
+ * returns the number of uncompressed bytes actually written
+ * (0 in case of error).
+ */
+template <class T, class Items>
+inline int write(ozstream& zs, const T* x, Items items) {
+    return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T));
+}
+
+/*
+ * Binary output with the '<' operator.
+ */
+template <class T>
+inline ozstream& operator<(ozstream& zs, const T& x) {
+    ::gzwrite(zs.fp(), (voidp) &x, sizeof(T));
+    return zs;
+}
+
+inline zstringlen::zstringlen(ozstream& zs, const char* x) {
+    val.byte = 255;  val.word = ::strlen(x);
+    if (val.word < 255) zs < (val.byte = val.word);
+    else zs < val;
+}
+
+/*
+ * Write length of string + the string with the '<' operator.
+ */
+inline ozstream& operator<(ozstream& zs, const char* x) {
+    zstringlen len(zs, x);
+    ::gzwrite(zs.fp(), (voidp) x, len.value());
+    return zs;
+}
+
+#ifdef _MSC_VER
+inline ozstream& operator<(ozstream& zs, char* const& x) {
+    return zs < (const char*) x;
+}
+#endif
+
+/*
+ * Ascii write with the << operator;
+ */
+template <class T>
+inline ostream& operator<<(ozstream& zs, const T& x) {
+    zs.os_flush();
+    return zs.os() << x;
+}
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream2/zstream_test.cpp b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream2/zstream_test.cpp
new file mode 100644
index 000000000..6273f62d6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream2/zstream_test.cpp
@@ -0,0 +1,25 @@
+#include "zstream.h"
+#include <math.h>
+#include <stdlib.h>
+#include <iomanip.h>
+
+void main() {
+    char h[256] = "Hello";
+    char* g = "Goodbye";
+    ozstream out("temp.gz");
+    out < "This works well" < h < g;
+    out.close();
+
+    izstream in("temp.gz"); // read it back
+    char *x = read_string(in), *y = new char[256], z[256];
+    in > y > z;
+    in.close();
+    cout << x << endl << y << endl << z << endl;
+
+    out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results
+    out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl;
+    out << z << endl << y << endl << x << endl;
+    out << 1.1234567890123456789 << endl;
+
+    delete[] x; delete[] y;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/README
new file mode 100644
index 000000000..f7b319ab9
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/README
@@ -0,0 +1,35 @@
+These classes provide a C++ stream interface to the zlib library. It allows you
+to do things like:
+
+  gzofstream outf("blah.gz");
+  outf << "These go into the gzip file " << 123 << endl;
+
+It does this by deriving a specialized stream buffer for gzipped files, which is
+the way Stroustrup would have done it. :->
+
+The gzifstream and gzofstream classes were originally written by Kevin Ruland
+and made available in the zlib contrib/iostream directory. The older version still
+compiles under gcc 2.xx, but not under gcc 3.xx, which sparked the development of
+this version.
+
+The new classes are as standard-compliant as possible, closely following the
+approach of the standard library's fstream classes. It compiles under gcc versions
+3.2 and 3.3, but not under gcc 2.xx. This is mainly due to changes in the standard
+library naming scheme. The new version of gzifstream/gzofstream/gzfilebuf differs
+from the previous one in the following respects:
+- added showmanyc
+- added setbuf, with support for unbuffered output via setbuf(0,0)
+- a few bug fixes of stream behavior
+- gzipped output file opened with default compression level instead of maximum level
+- setcompressionlevel()/strategy() members replaced by single setcompression()
+
+The code is provided "as is", with the permission to use, copy, modify, distribute
+and sell it for any purpose without fee.
+
+Ludwig Schwardt
+<schwardt@sun.ac.za>
+
+DSP Lab
+Electrical & Electronic Engineering Department
+University of Stellenbosch
+South Africa
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/TODO b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/TODO
new file mode 100644
index 000000000..7032f97be
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/TODO
@@ -0,0 +1,17 @@
+Possible upgrades to gzfilebuf:
+
+- The ability to do putback (e.g. putbackfail)
+
+- The ability to seek (zlib supports this, but could be slow/tricky)
+
+- Simultaneous read/write access (does it make sense?)
+
+- Support for ios_base::ate open mode
+
+- Locale support?
+
+- Check public interface to see which calls give problems
+  (due to dependence on library internals)
+
+- Override operator<<(ostream&, gzfilebuf*) to allow direct copying
+  of stream buffer to stream ( i.e. os << is.rdbuf(); )
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/test.cc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/test.cc
new file mode 100644
index 000000000..94235334f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/test.cc
@@ -0,0 +1,50 @@
+/*
+ * Test program for gzifstream and gzofstream
+ *
+ * by Ludwig Schwardt <schwardt@sun.ac.za>
+ * original version by Kevin Ruland <kevin@rodin.wustl.edu>
+ */
+
+#include "zfstream.h"
+#include <iostream>      // for cout
+
+int main() {
+
+  gzofstream outf;
+  gzifstream inf;
+  char buf[80];
+
+  outf.open("test1.txt.gz");
+  outf << "The quick brown fox sidestepped the lazy canine\n"
+       << 1.3 << "\nPlan " << 9 << std::endl;
+  outf.close();
+  std::cout << "Wrote the following message to 'test1.txt.gz' (check with zcat or zless):\n"
+            << "The quick brown fox sidestepped the lazy canine\n"
+            << 1.3 << "\nPlan " << 9 << std::endl;
+
+  std::cout << "\nReading 'test1.txt.gz' (buffered) produces:\n";
+  inf.open("test1.txt.gz");
+  while (inf.getline(buf,80,'\n')) {
+    std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
+  }
+  inf.close();
+
+  outf.rdbuf()->pubsetbuf(0,0);
+  outf.open("test2.txt.gz");
+  outf << setcompression(Z_NO_COMPRESSION)
+       << "The quick brown fox sidestepped the lazy canine\n"
+       << 1.3 << "\nPlan " << 9 << std::endl;
+  outf.close();
+  std::cout << "\nWrote the same message to 'test2.txt.gz' in uncompressed form";
+
+  std::cout << "\nReading 'test2.txt.gz' (unbuffered) produces:\n";
+  inf.rdbuf()->pubsetbuf(0,0);
+  inf.open("test2.txt.gz");
+  while (inf.getline(buf,80,'\n')) {
+    std::cout << buf << "\t(" << inf.rdbuf()->in_avail() << " chars left in buffer)\n";
+  }
+  inf.close();
+
+  return 0;
+
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/zfstream.cc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/zfstream.cc
new file mode 100644
index 000000000..94eb93344
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/zfstream.cc
@@ -0,0 +1,479 @@
+/*
+ * A C++ I/O streams interface to the zlib gz* functions
+ *
+ * by Ludwig Schwardt <schwardt@sun.ac.za>
+ * original version by Kevin Ruland <kevin@rodin.wustl.edu>
+ *
+ * This version is standard-compliant and compatible with gcc 3.x.
+ */
+
+#include "zfstream.h"
+#include <cstring>          // for strcpy, strcat, strlen (mode strings)
+#include <cstdio>           // for BUFSIZ
+
+// Internal buffer sizes (default and "unbuffered" versions)
+#define BIGBUFSIZE BUFSIZ
+#define SMALLBUFSIZE 1
+
+/*****************************************************************************/
+
+// Default constructor
+gzfilebuf::gzfilebuf()
+: file(NULL), io_mode(std::ios_base::openmode(0)), own_fd(false),
+  buffer(NULL), buffer_size(BIGBUFSIZE), own_buffer(true)
+{
+  // No buffers to start with
+  this->disable_buffer();
+}
+
+// Destructor
+gzfilebuf::~gzfilebuf()
+{
+  // Sync output buffer and close only if responsible for file
+  // (i.e. attached streams should be left open at this stage)
+  this->sync();
+  if (own_fd)
+    this->close();
+  // Make sure internal buffer is deallocated
+  this->disable_buffer();
+}
+
+// Set compression level and strategy
+int
+gzfilebuf::setcompression(int comp_level,
+                          int comp_strategy)
+{
+  return gzsetparams(file, comp_level, comp_strategy);
+}
+
+// Open gzipped file
+gzfilebuf*
+gzfilebuf::open(const char *name,
+                std::ios_base::openmode mode)
+{
+  // Fail if file already open
+  if (this->is_open())
+    return NULL;
+  // Don't support simultaneous read/write access (yet)
+  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
+    return NULL;
+
+  // Build mode string for gzopen and check it [27.8.1.3.2]
+  char char_mode[6] = "\0\0\0\0\0";
+  if (!this->open_mode(mode, char_mode))
+    return NULL;
+
+  // Attempt to open file
+  if ((file = gzopen(name, char_mode)) == NULL)
+    return NULL;
+
+  // On success, allocate internal buffer and set flags
+  this->enable_buffer();
+  io_mode = mode;
+  own_fd = true;
+  return this;
+}
+
+// Attach to gzipped file
+gzfilebuf*
+gzfilebuf::attach(int fd,
+                  std::ios_base::openmode mode)
+{
+  // Fail if file already open
+  if (this->is_open())
+    return NULL;
+  // Don't support simultaneous read/write access (yet)
+  if ((mode & std::ios_base::in) && (mode & std::ios_base::out))
+    return NULL;
+
+  // Build mode string for gzdopen and check it [27.8.1.3.2]
+  char char_mode[6] = "\0\0\0\0\0";
+  if (!this->open_mode(mode, char_mode))
+    return NULL;
+
+  // Attempt to attach to file
+  if ((file = gzdopen(fd, char_mode)) == NULL)
+    return NULL;
+
+  // On success, allocate internal buffer and set flags
+  this->enable_buffer();
+  io_mode = mode;
+  own_fd = false;
+  return this;
+}
+
+// Close gzipped file
+gzfilebuf*
+gzfilebuf::close()
+{
+  // Fail immediately if no file is open
+  if (!this->is_open())
+    return NULL;
+  // Assume success
+  gzfilebuf* retval = this;
+  // Attempt to sync and close gzipped file
+  if (this->sync() == -1)
+    retval = NULL;
+  if (gzclose(file) < 0)
+    retval = NULL;
+  // File is now gone anyway (postcondition [27.8.1.3.8])
+  file = NULL;
+  own_fd = false;
+  // Destroy internal buffer if it exists
+  this->disable_buffer();
+  return retval;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+// Convert int open mode to mode string
+bool
+gzfilebuf::open_mode(std::ios_base::openmode mode,
+                     char* c_mode) const
+{
+  bool testb = mode & std::ios_base::binary;
+  bool testi = mode & std::ios_base::in;
+  bool testo = mode & std::ios_base::out;
+  bool testt = mode & std::ios_base::trunc;
+  bool testa = mode & std::ios_base::app;
+
+  // Check for valid flag combinations - see [27.8.1.3.2] (Table 92)
+  // Original zfstream hardcoded the compression level to maximum here...
+  // Double the time for less than 1% size improvement seems
+  // excessive though - keeping it at the default level
+  // To change back, just append "9" to the next three mode strings
+  if (!testi && testo && !testt && !testa)
+    strcpy(c_mode, "w");
+  if (!testi && testo && !testt && testa)
+    strcpy(c_mode, "a");
+  if (!testi && testo && testt && !testa)
+    strcpy(c_mode, "w");
+  if (testi && !testo && !testt && !testa)
+    strcpy(c_mode, "r");
+  // No read/write mode yet
+//  if (testi && testo && !testt && !testa)
+//    strcpy(c_mode, "r+");
+//  if (testi && testo && testt && !testa)
+//    strcpy(c_mode, "w+");
+
+  // Mode string should be empty for invalid combination of flags
+  if (strlen(c_mode) == 0)
+    return false;
+  if (testb)
+    strcat(c_mode, "b");
+  return true;
+}
+
+// Determine number of characters in internal get buffer
+std::streamsize
+gzfilebuf::showmanyc()
+{
+  // Calls to underflow will fail if file not opened for reading
+  if (!this->is_open() || !(io_mode & std::ios_base::in))
+    return -1;
+  // Make sure get area is in use
+  if (this->gptr() && (this->gptr() < this->egptr()))
+    return std::streamsize(this->egptr() - this->gptr());
+  else
+    return 0;
+}
+
+// Fill get area from gzipped file
+gzfilebuf::int_type
+gzfilebuf::underflow()
+{
+  // If something is left in the get area by chance, return it
+  // (this shouldn't normally happen, as underflow is only supposed
+  // to be called when gptr >= egptr, but it serves as error check)
+  if (this->gptr() && (this->gptr() < this->egptr()))
+    return traits_type::to_int_type(*(this->gptr()));
+
+  // If the file hasn't been opened for reading, produce error
+  if (!this->is_open() || !(io_mode & std::ios_base::in))
+    return traits_type::eof();
+
+  // Attempt to fill internal buffer from gzipped file
+  // (buffer must be guaranteed to exist...)
+  int bytes_read = gzread(file, buffer, buffer_size);
+  // Indicates error or EOF
+  if (bytes_read <= 0)
+  {
+    // Reset get area
+    this->setg(buffer, buffer, buffer);
+    return traits_type::eof();
+  }
+  // Make all bytes read from file available as get area
+  this->setg(buffer, buffer, buffer + bytes_read);
+
+  // Return next character in get area
+  return traits_type::to_int_type(*(this->gptr()));
+}
+
+// Write put area to gzipped file
+gzfilebuf::int_type
+gzfilebuf::overflow(int_type c)
+{
+  // Determine whether put area is in use
+  if (this->pbase())
+  {
+    // Double-check pointer range
+    if (this->pptr() > this->epptr() || this->pptr() < this->pbase())
+      return traits_type::eof();
+    // Add extra character to buffer if not EOF
+    if (!traits_type::eq_int_type(c, traits_type::eof()))
+    {
+      *(this->pptr()) = traits_type::to_char_type(c);
+      this->pbump(1);
+    }
+    // Number of characters to write to file
+    int bytes_to_write = this->pptr() - this->pbase();
+    // Overflow doesn't fail if nothing is to be written
+    if (bytes_to_write > 0)
+    {
+      // If the file hasn't been opened for writing, produce error
+      if (!this->is_open() || !(io_mode & std::ios_base::out))
+        return traits_type::eof();
+      // If gzipped file won't accept all bytes written to it, fail
+      if (gzwrite(file, this->pbase(), bytes_to_write) != bytes_to_write)
+        return traits_type::eof();
+      // Reset next pointer to point to pbase on success
+      this->pbump(-bytes_to_write);
+    }
+  }
+  // Write extra character to file if not EOF
+  else if (!traits_type::eq_int_type(c, traits_type::eof()))
+  {
+    // If the file hasn't been opened for writing, produce error
+    if (!this->is_open() || !(io_mode & std::ios_base::out))
+      return traits_type::eof();
+    // Impromptu char buffer (allows "unbuffered" output)
+    char_type last_char = traits_type::to_char_type(c);
+    // If gzipped file won't accept this character, fail
+    if (gzwrite(file, &last_char, 1) != 1)
+      return traits_type::eof();
+  }
+
+  // If you got here, you have succeeded (even if c was EOF)
+  // The return value should therefore be non-EOF
+  if (traits_type::eq_int_type(c, traits_type::eof()))
+    return traits_type::not_eof(c);
+  else
+    return c;
+}
+
+// Assign new buffer
+std::streambuf*
+gzfilebuf::setbuf(char_type* p,
+                  std::streamsize n)
+{
+  // First make sure stuff is sync'ed, for safety
+  if (this->sync() == -1)
+    return NULL;
+  // If buffering is turned off on purpose via setbuf(0,0), still allocate one...
+  // "Unbuffered" only really refers to put [27.8.1.4.10], while get needs at
+  // least a buffer of size 1 (very inefficient though, therefore make it bigger?)
+  // This follows from [27.5.2.4.3]/12 (gptr needs to point at something, it seems)
+  if (!p || !n)
+  {
+    // Replace existing buffer (if any) with small internal buffer
+    this->disable_buffer();
+    buffer = NULL;
+    buffer_size = 0;
+    own_buffer = true;
+    this->enable_buffer();
+  }
+  else
+  {
+    // Replace existing buffer (if any) with external buffer
+    this->disable_buffer();
+    buffer = p;
+    buffer_size = n;
+    own_buffer = false;
+    this->enable_buffer();
+  }
+  return this;
+}
+
+// Write put area to gzipped file (i.e. ensures that put area is empty)
+int
+gzfilebuf::sync()
+{
+  return traits_type::eq_int_type(this->overflow(), traits_type::eof()) ? -1 : 0;
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+// Allocate internal buffer
+void
+gzfilebuf::enable_buffer()
+{
+  // If internal buffer required, allocate one
+  if (own_buffer && !buffer)
+  {
+    // Check for buffered vs. "unbuffered"
+    if (buffer_size > 0)
+    {
+      // Allocate internal buffer
+      buffer = new char_type[buffer_size];
+      // Get area starts empty and will be expanded by underflow as need arises
+      this->setg(buffer, buffer, buffer);
+      // Setup entire internal buffer as put area.
+      // The one-past-end pointer actually points to the last element of the buffer,
+      // so that overflow(c) can safely add the extra character c to the sequence.
+      // These pointers remain in place for the duration of the buffer
+      this->setp(buffer, buffer + buffer_size - 1);
+    }
+    else
+    {
+      // Even in "unbuffered" case, (small?) get buffer is still required
+      buffer_size = SMALLBUFSIZE;
+      buffer = new char_type[buffer_size];
+      this->setg(buffer, buffer, buffer);
+      // "Unbuffered" means no put buffer
+      this->setp(0, 0);
+    }
+  }
+  else
+  {
+    // If buffer already allocated, reset buffer pointers just to make sure no
+    // stale chars are lying around
+    this->setg(buffer, buffer, buffer);
+    this->setp(buffer, buffer + buffer_size - 1);
+  }
+}
+
+// Destroy internal buffer
+void
+gzfilebuf::disable_buffer()
+{
+  // If internal buffer exists, deallocate it
+  if (own_buffer && buffer)
+  {
+    // Preserve unbuffered status by zeroing size
+    if (!this->pbase())
+      buffer_size = 0;
+    delete[] buffer;
+    buffer = NULL;
+    this->setg(0, 0, 0);
+    this->setp(0, 0);
+  }
+  else
+  {
+    // Reset buffer pointers to initial state if external buffer exists
+    this->setg(buffer, buffer, buffer);
+    if (buffer)
+      this->setp(buffer, buffer + buffer_size - 1);
+    else
+      this->setp(0, 0);
+  }
+}
+
+/*****************************************************************************/
+
+// Default constructor initializes stream buffer
+gzifstream::gzifstream()
+: std::istream(NULL), sb()
+{ this->init(&sb); }
+
+// Initialize stream buffer and open file
+gzifstream::gzifstream(const char* name,
+                       std::ios_base::openmode mode)
+: std::istream(NULL), sb()
+{
+  this->init(&sb);
+  this->open(name, mode);
+}
+
+// Initialize stream buffer and attach to file
+gzifstream::gzifstream(int fd,
+                       std::ios_base::openmode mode)
+: std::istream(NULL), sb()
+{
+  this->init(&sb);
+  this->attach(fd, mode);
+}
+
+// Open file and go into fail() state if unsuccessful
+void
+gzifstream::open(const char* name,
+                 std::ios_base::openmode mode)
+{
+  if (!sb.open(name, mode | std::ios_base::in))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Attach to file and go into fail() state if unsuccessful
+void
+gzifstream::attach(int fd,
+                   std::ios_base::openmode mode)
+{
+  if (!sb.attach(fd, mode | std::ios_base::in))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Close file
+void
+gzifstream::close()
+{
+  if (!sb.close())
+    this->setstate(std::ios_base::failbit);
+}
+
+/*****************************************************************************/
+
+// Default constructor initializes stream buffer
+gzofstream::gzofstream()
+: std::ostream(NULL), sb()
+{ this->init(&sb); }
+
+// Initialize stream buffer and open file
+gzofstream::gzofstream(const char* name,
+                       std::ios_base::openmode mode)
+: std::ostream(NULL), sb()
+{
+  this->init(&sb);
+  this->open(name, mode);
+}
+
+// Initialize stream buffer and attach to file
+gzofstream::gzofstream(int fd,
+                       std::ios_base::openmode mode)
+: std::ostream(NULL), sb()
+{
+  this->init(&sb);
+  this->attach(fd, mode);
+}
+
+// Open file and go into fail() state if unsuccessful
+void
+gzofstream::open(const char* name,
+                 std::ios_base::openmode mode)
+{
+  if (!sb.open(name, mode | std::ios_base::out))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Attach to file and go into fail() state if unsuccessful
+void
+gzofstream::attach(int fd,
+                   std::ios_base::openmode mode)
+{
+  if (!sb.attach(fd, mode | std::ios_base::out))
+    this->setstate(std::ios_base::failbit);
+  else
+    this->clear();
+}
+
+// Close file
+void
+gzofstream::close()
+{
+  if (!sb.close())
+    this->setstate(std::ios_base::failbit);
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/zfstream.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/zfstream.h
new file mode 100644
index 000000000..8574479ae
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/iostream3/zfstream.h
@@ -0,0 +1,466 @@
+/*
+ * A C++ I/O streams interface to the zlib gz* functions
+ *
+ * by Ludwig Schwardt <schwardt@sun.ac.za>
+ * original version by Kevin Ruland <kevin@rodin.wustl.edu>
+ *
+ * This version is standard-compliant and compatible with gcc 3.x.
+ */
+
+#ifndef ZFSTREAM_H
+#define ZFSTREAM_H
+
+#include <istream>  // not iostream, since we don't need cin/cout
+#include <ostream>
+#include "zlib.h"
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file stream buffer class.
+ *
+ *  This class implements basic_filebuf for gzipped files. It doesn't yet support
+ *  seeking (allowed by zlib but slow/limited), putback and read/write access
+ *  (tricky). Otherwise, it attempts to be a drop-in replacement for the standard
+ *  file streambuf.
+*/
+class gzfilebuf : public std::streambuf
+{
+public:
+  //  Default constructor.
+  gzfilebuf();
+
+  //  Destructor.
+  virtual
+  ~gzfilebuf();
+
+  /**
+   *  @brief  Set compression level and strategy on the fly.
+   *  @param  comp_level  Compression level (see zlib.h for allowed values)
+   *  @param  comp_strategy  Compression strategy (see zlib.h for allowed values)
+   *  @return  Z_OK on success, Z_STREAM_ERROR otherwise.
+   *
+   *  Unfortunately, these parameters cannot be modified separately, as the
+   *  previous zfstream version assumed. Since the strategy is seldom changed,
+   *  it can default and setcompression(level) then becomes like the old
+   *  setcompressionlevel(level).
+  */
+  int
+  setcompression(int comp_level,
+                 int comp_strategy = Z_DEFAULT_STRATEGY);
+
+  /**
+   *  @brief  Check if file is open.
+   *  @return  True if file is open.
+  */
+  bool
+  is_open() const { return (file != NULL); }
+
+  /**
+   *  @brief  Open gzipped file.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags.
+   *  @return  @c this on success, NULL on failure.
+  */
+  gzfilebuf*
+  open(const char* name,
+       std::ios_base::openmode mode);
+
+  /**
+   *  @brief  Attach to already open gzipped file.
+   *  @param  fd  File descriptor.
+   *  @param  mode  Open mode flags.
+   *  @return  @c this on success, NULL on failure.
+  */
+  gzfilebuf*
+  attach(int fd,
+         std::ios_base::openmode mode);
+
+  /**
+   *  @brief  Close gzipped file.
+   *  @return  @c this on success, NULL on failure.
+  */
+  gzfilebuf*
+  close();
+
+protected:
+  /**
+   *  @brief  Convert ios open mode int to mode string used by zlib.
+   *  @return  True if valid mode flag combination.
+  */
+  bool
+  open_mode(std::ios_base::openmode mode,
+            char* c_mode) const;
+
+  /**
+   *  @brief  Number of characters available in stream buffer.
+   *  @return  Number of characters.
+   *
+   *  This indicates number of characters in get area of stream buffer.
+   *  These characters can be read without accessing the gzipped file.
+  */
+  virtual std::streamsize
+  showmanyc();
+
+  /**
+   *  @brief  Fill get area from gzipped file.
+   *  @return  First character in get area on success, EOF on error.
+   *
+   *  This actually reads characters from gzipped file to stream
+   *  buffer. Always buffered.
+  */
+  virtual int_type
+  underflow();
+
+  /**
+   *  @brief  Write put area to gzipped file.
+   *  @param  c  Extra character to add to buffer contents.
+   *  @return  Non-EOF on success, EOF on error.
+   *
+   *  This actually writes characters in stream buffer to
+   *  gzipped file. With unbuffered output this is done one
+   *  character at a time.
+  */
+  virtual int_type
+  overflow(int_type c = traits_type::eof());
+
+  /**
+   *  @brief  Installs external stream buffer.
+   *  @param  p  Pointer to char buffer.
+   *  @param  n  Size of external buffer.
+   *  @return  @c this on success, NULL on failure.
+   *
+   *  Call setbuf(0,0) to enable unbuffered output.
+  */
+  virtual std::streambuf*
+  setbuf(char_type* p,
+         std::streamsize n);
+
+  /**
+   *  @brief  Flush stream buffer to file.
+   *  @return  0 on success, -1 on error.
+   *
+   *  This calls underflow(EOF) to do the job.
+  */
+  virtual int
+  sync();
+
+//
+// Some future enhancements
+//
+//  virtual int_type uflow();
+//  virtual int_type pbackfail(int_type c = traits_type::eof());
+//  virtual pos_type
+//  seekoff(off_type off,
+//          std::ios_base::seekdir way,
+//          std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
+//  virtual pos_type
+//  seekpos(pos_type sp,
+//          std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);
+
+private:
+  /**
+   *  @brief  Allocate internal buffer.
+   *
+   *  This function is safe to call multiple times. It will ensure
+   *  that a proper internal buffer exists if it is required. If the
+   *  buffer already exists or is external, the buffer pointers will be
+   *  reset to their original state.
+  */
+  void
+  enable_buffer();
+
+  /**
+   *  @brief  Destroy internal buffer.
+   *
+   *  This function is safe to call multiple times. It will ensure
+   *  that the internal buffer is deallocated if it exists. In any
+   *  case, it will also reset the buffer pointers.
+  */
+  void
+  disable_buffer();
+
+  /**
+   *  Underlying file pointer.
+  */
+  gzFile file;
+
+  /**
+   *  Mode in which file was opened.
+  */
+  std::ios_base::openmode io_mode;
+
+  /**
+   *  @brief  True if this object owns file descriptor.
+   *
+   *  This makes the class responsible for closing the file
+   *  upon destruction.
+  */
+  bool own_fd;
+
+  /**
+   *  @brief  Stream buffer.
+   *
+   *  For simplicity this remains allocated on the free store for the
+   *  entire life span of the gzfilebuf object, unless replaced by setbuf.
+  */
+  char_type* buffer;
+
+  /**
+   *  @brief  Stream buffer size.
+   *
+   *  Defaults to system default buffer size (typically 8192 bytes).
+   *  Modified by setbuf.
+  */
+  std::streamsize buffer_size;
+
+  /**
+   *  @brief  True if this object owns stream buffer.
+   *
+   *  This makes the class responsible for deleting the buffer
+   *  upon destruction.
+  */
+  bool own_buffer;
+};
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file input stream class.
+ *
+ *  This class implements ifstream for gzipped files. Seeking and putback
+ *  is not supported yet.
+*/
+class gzifstream : public std::istream
+{
+public:
+  //  Default constructor
+  gzifstream();
+
+  /**
+   *  @brief  Construct stream on gzipped file to be opened.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+  */
+  explicit
+  gzifstream(const char* name,
+             std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  @brief  Construct stream on already open gzipped file.
+   *  @param  fd    File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+  */
+  explicit
+  gzifstream(int fd,
+             std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  Obtain underlying stream buffer.
+  */
+  gzfilebuf*
+  rdbuf() const
+  { return const_cast<gzfilebuf*>(&sb); }
+
+  /**
+   *  @brief  Check if file is open.
+   *  @return  True if file is open.
+  */
+  bool
+  is_open() { return sb.is_open(); }
+
+  /**
+   *  @brief  Open gzipped file.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+   *
+   *  Stream will be in state good() if file opens successfully;
+   *  otherwise in state fail(). This differs from the behavior of
+   *  ifstream, which never sets the state to good() and therefore
+   *  won't allow you to reuse the stream for a second file unless
+   *  you manually clear() the state. The choice is a matter of
+   *  convenience.
+  */
+  void
+  open(const char* name,
+       std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  @brief  Attach to already open gzipped file.
+   *  @param  fd  File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::in).
+   *
+   *  Stream will be in state good() if attach succeeded; otherwise
+   *  in state fail().
+  */
+  void
+  attach(int fd,
+         std::ios_base::openmode mode = std::ios_base::in);
+
+  /**
+   *  @brief  Close gzipped file.
+   *
+   *  Stream will be in state fail() if close failed.
+  */
+  void
+  close();
+
+private:
+  /**
+   *  Underlying stream buffer.
+  */
+  gzfilebuf sb;
+};
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file output stream class.
+ *
+ *  This class implements ofstream for gzipped files. Seeking and putback
+ *  is not supported yet.
+*/
+class gzofstream : public std::ostream
+{
+public:
+  //  Default constructor
+  gzofstream();
+
+  /**
+   *  @brief  Construct stream on gzipped file to be opened.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+  */
+  explicit
+  gzofstream(const char* name,
+             std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  @brief  Construct stream on already open gzipped file.
+   *  @param  fd    File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+  */
+  explicit
+  gzofstream(int fd,
+             std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  Obtain underlying stream buffer.
+  */
+  gzfilebuf*
+  rdbuf() const
+  { return const_cast<gzfilebuf*>(&sb); }
+
+  /**
+   *  @brief  Check if file is open.
+   *  @return  True if file is open.
+  */
+  bool
+  is_open() { return sb.is_open(); }
+
+  /**
+   *  @brief  Open gzipped file.
+   *  @param  name  File name.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+   *
+   *  Stream will be in state good() if file opens successfully;
+   *  otherwise in state fail(). This differs from the behavior of
+   *  ofstream, which never sets the state to good() and therefore
+   *  won't allow you to reuse the stream for a second file unless
+   *  you manually clear() the state. The choice is a matter of
+   *  convenience.
+  */
+  void
+  open(const char* name,
+       std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  @brief  Attach to already open gzipped file.
+   *  @param  fd  File descriptor.
+   *  @param  mode  Open mode flags (forced to contain ios::out).
+   *
+   *  Stream will be in state good() if attach succeeded; otherwise
+   *  in state fail().
+  */
+  void
+  attach(int fd,
+         std::ios_base::openmode mode = std::ios_base::out);
+
+  /**
+   *  @brief  Close gzipped file.
+   *
+   *  Stream will be in state fail() if close failed.
+  */
+  void
+  close();
+
+private:
+  /**
+   *  Underlying stream buffer.
+  */
+  gzfilebuf sb;
+};
+
+/*****************************************************************************/
+
+/**
+ *  @brief  Gzipped file output stream manipulator class.
+ *
+ *  This class defines a two-argument manipulator for gzofstream. It is used
+ *  as base for the setcompression(int,int) manipulator.
+*/
+template<typename T1, typename T2>
+  class gzomanip2
+  {
+  public:
+    // Allows insertor to peek at internals
+    template <typename Ta, typename Tb>
+      friend gzofstream&
+      operator<<(gzofstream&,
+                 const gzomanip2<Ta,Tb>&);
+
+    // Constructor
+    gzomanip2(gzofstream& (*f)(gzofstream&, T1, T2),
+              T1 v1,
+              T2 v2);
+  private:
+    // Underlying manipulator function
+    gzofstream&
+    (*func)(gzofstream&, T1, T2);
+
+    // Arguments for manipulator function
+    T1 val1;
+    T2 val2;
+  };
+
+/*****************************************************************************/
+
+// Manipulator function thunks through to stream buffer
+inline gzofstream&
+setcompression(gzofstream &gzs, int l, int s = Z_DEFAULT_STRATEGY)
+{
+  (gzs.rdbuf())->setcompression(l, s);
+  return gzs;
+}
+
+// Manipulator constructor stores arguments
+template<typename T1, typename T2>
+  inline
+  gzomanip2<T1,T2>::gzomanip2(gzofstream &(*f)(gzofstream &, T1, T2),
+                              T1 v1,
+                              T2 v2)
+  : func(f), val1(v1), val2(v2)
+  { }
+
+// Insertor applies underlying manipulator function to stream
+template<typename T1, typename T2>
+  inline gzofstream&
+  operator<<(gzofstream& s, const gzomanip2<T1,T2>& m)
+  { return (*m.func)(s, m.val1, m.val2); }
+
+// Insert this onto stream to simplify setting of compression level
+inline gzomanip2<int,int>
+setcompression(int l, int s = Z_DEFAULT_STRATEGY)
+{ return gzomanip2<int,int>(&setcompression, l, s); }
+
+#endif // ZFSTREAM_H
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/bld_ml64.bat b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/bld_ml64.bat
new file mode 100644
index 000000000..f74bcef5b
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/bld_ml64.bat
@@ -0,0 +1,2 @@
+ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
+ml64.exe /Flgvmat64   /c /Zi gvmat64.asm
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/gvmat64.asm b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/gvmat64.asm
new file mode 100644
index 000000000..c1817f1be
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/gvmat64.asm
@@ -0,0 +1,553 @@
+;uInt longest_match_x64(
+;    deflate_state *s,
+;    IPos cur_match);                             /* current match */
+
+; gvmat64.asm -- Asm portion of the optimized longest_match for 32 bits x86_64
+;  (AMD64 on Athlon 64, Opteron, Phenom
+;     and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
+; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+;
+; File written by Gilles Vollant, by converting to assembly the longest_match
+;  from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
+;
+;  and by taking inspiration on asm686 with masm, optimised assembly code
+;        from Brian Raiter, written 1998
+;
+;  This software is provided 'as-is', without any express or implied
+;  warranty.  In no event will the authors be held liable for any damages
+;  arising from the use of this software.
+;
+;  Permission is granted to anyone to use this software for any purpose,
+;  including commercial applications, and to alter it and redistribute it
+;  freely, subject to the following restrictions:
+;
+;  1. The origin of this software must not be misrepresented; you must not
+;     claim that you wrote the original software. If you use this software
+;     in a product, an acknowledgment in the product documentation would be
+;     appreciated but is not required.
+;  2. Altered source versions must be plainly marked as such, and must not be
+;     misrepresented as being the original software
+;  3. This notice may not be removed or altered from any source distribution.
+;
+;
+;
+;         http://www.zlib.net
+;         http://www.winimage.com/zLibDll
+;         http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; to compile this file for infozip Zip, I use option:
+;   ml64.exe /Flgvmat64 /c /Zi /DINFOZIP gvmat64.asm
+;
+; to compile this file for zLib, I use option:
+;   ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
+; Be carrefull to adapt zlib1222add below to your version of zLib
+;   (if you use a version of zLib before 1.0.4 or after 1.2.2.2, change
+;    value of zlib1222add later)
+;
+; This file compile with Microsoft Macro Assembler (x64) for AMD64
+;
+;   ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
+;
+;   (you can get Windows WDK with ml64 for AMD64 from
+;      http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
+;
+
+
+;uInt longest_match(s, cur_match)
+;    deflate_state *s;
+;    IPos cur_match;                             /* current match */
+.code
+longest_match PROC
+
+
+;LocalVarsSize   equ 88
+ LocalVarsSize   equ 72
+
+; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
+; free register :  r14,r15
+; register can be saved : rsp
+
+ chainlenwmask   equ  rsp + 8 - LocalVarsSize    ; high word: current chain len
+                                                 ; low word: s->wmask
+;window          equ  rsp + xx - LocalVarsSize   ; local copy of s->window ; stored in r10
+;windowbestlen   equ  rsp + xx - LocalVarsSize   ; s->window + bestlen , use r10+r11
+;scanstart       equ  rsp + xx - LocalVarsSize   ; first two bytes of string ; stored in r12w
+;scanend         equ  rsp + xx - LocalVarsSize   ; last two bytes of string use ebx
+;scanalign       equ  rsp + xx - LocalVarsSize   ; dword-misalignment of string r13
+;bestlen         equ  rsp + xx - LocalVarsSize   ; size of best match so far -> r11d
+;scan            equ  rsp + xx - LocalVarsSize   ; ptr to string wanting match -> r9
+IFDEF INFOZIP
+ELSE
+ nicematch       equ  (rsp + 16 - LocalVarsSize) ; a good enough match size
+ENDIF
+
+save_rdi        equ  rsp + 24 - LocalVarsSize
+save_rsi        equ  rsp + 32 - LocalVarsSize
+save_rbx        equ  rsp + 40 - LocalVarsSize
+save_rbp        equ  rsp + 48 - LocalVarsSize
+save_r12        equ  rsp + 56 - LocalVarsSize
+save_r13        equ  rsp + 64 - LocalVarsSize
+;save_r14        equ  rsp + 72 - LocalVarsSize
+;save_r15        equ  rsp + 80 - LocalVarsSize
+
+
+; summary of register usage
+; scanend     ebx
+; scanendw    bx
+; chainlenwmask   edx
+; curmatch    rsi
+; curmatchd   esi
+; windowbestlen   r8
+; scanalign   r9
+; scanalignd  r9d
+; window      r10
+; bestlen     r11
+; bestlend    r11d
+; scanstart   r12d
+; scanstartw  r12w
+; scan        r13
+; nicematch   r14d
+; limit       r15
+; limitd      r15d
+; prev        rcx
+
+;  all the +4 offsets are due to the addition of pending_buf_size (in zlib
+;  in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, remove the +4).
+;  Note : these value are good with a 8 bytes boundary pack structure
+
+
+    MAX_MATCH           equ     258
+    MIN_MATCH           equ     3
+    MIN_LOOKAHEAD       equ     (MAX_MATCH+MIN_MATCH+1)
+
+
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+;  all the +zlib1222add offsets are due to the addition of fields
+;  in zlib in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+;  (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+;  if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+
+
+IFDEF INFOZIP
+
+_DATA   SEGMENT
+COMM    window_size:DWORD
+; WMask ; 7fff
+COMM    window:BYTE:010040H
+COMM    prev:WORD:08000H
+; MatchLen : unused
+; PrevMatch : unused
+COMM    strstart:DWORD
+COMM    match_start:DWORD
+; Lookahead : ignore
+COMM    prev_length:DWORD ; PrevLen
+COMM    max_chain_length:DWORD
+COMM    good_match:DWORD
+COMM    nice_match:DWORD
+prev_ad equ OFFSET prev
+window_ad equ OFFSET window
+nicematch equ nice_match
+_DATA ENDS
+WMask equ 07fffh
+
+ELSE
+
+  IFNDEF zlib1222add
+    zlib1222add equ 8
+  ENDIF
+dsWSize         equ 56+zlib1222add+(zlib1222add/2)
+dsWMask         equ 64+zlib1222add+(zlib1222add/2)
+dsWindow        equ 72+zlib1222add
+dsPrev          equ 88+zlib1222add
+dsMatchLen      equ 128+zlib1222add
+dsPrevMatch     equ 132+zlib1222add
+dsStrStart      equ 140+zlib1222add
+dsMatchStart    equ 144+zlib1222add
+dsLookahead     equ 148+zlib1222add
+dsPrevLen       equ 152+zlib1222add
+dsMaxChainLen   equ 156+zlib1222add
+dsGoodMatch     equ 172+zlib1222add
+dsNiceMatch     equ 176+zlib1222add
+
+window_size     equ [ rcx + dsWSize]
+WMask           equ [ rcx + dsWMask]
+window_ad       equ [ rcx + dsWindow]
+prev_ad         equ [ rcx + dsPrev]
+strstart        equ [ rcx + dsStrStart]
+match_start     equ [ rcx + dsMatchStart]
+Lookahead       equ [ rcx + dsLookahead] ; 0ffffffffh on infozip
+prev_length     equ [ rcx + dsPrevLen]
+max_chain_length equ [ rcx + dsMaxChainLen]
+good_match      equ [ rcx + dsGoodMatch]
+nice_match      equ [ rcx + dsNiceMatch]
+ENDIF
+
+; parameter 1 in r8(deflate state s), param 2 in rdx (cur match)
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+;   rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
+
+
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+
+;;; Retrieve the function arguments. r8d will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+; parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
+
+; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
+
+        mov [save_rdi],rdi
+        mov [save_rsi],rsi
+        mov [save_rbx],rbx
+        mov [save_rbp],rbp
+IFDEF INFOZIP
+        mov r8d,ecx
+ELSE
+        mov r8d,edx
+ENDIF
+        mov [save_r12],r12
+        mov [save_r13],r13
+;        mov [save_r14],r14
+;        mov [save_r15],r15
+
+
+;;; uInt wmask = s->w_mask;
+;;; unsigned chain_length = s->max_chain_length;
+;;; if (s->prev_length >= s->good_match) {
+;;;     chain_length >>= 2;
+;;; }
+
+        mov edi, prev_length
+        mov esi, good_match
+        mov eax, WMask
+        mov ebx, max_chain_length
+        cmp edi, esi
+        jl  LastMatchGood
+        shr ebx, 2
+LastMatchGood:
+
+;;; chainlen is decremented once beforehand so that the function can
+;;; use the sign flag instead of the zero flag for the exit test.
+;;; It is then shifted into the high word, to make room for the wmask
+;;; value, which it will always accompany.
+
+        dec ebx
+        shl ebx, 16
+        or  ebx, eax
+
+;;; on zlib only
+;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+IFDEF INFOZIP
+        mov [chainlenwmask], ebx
+; on infozip nice_match = [nice_match]
+ELSE
+        mov eax, nice_match
+        mov [chainlenwmask], ebx
+        mov r10d, Lookahead
+        cmp r10d, eax
+        cmovnl r10d, eax
+        mov [nicematch],r10d
+ENDIF
+
+;;; register Bytef *scan = s->window + s->strstart;
+        mov r10, window_ad
+        mov ebp, strstart
+        lea r13, [r10 + rbp]
+
+;;; Determine how many bytes the scan ptr is off from being
+;;; dword-aligned.
+
+         mov r9,r13
+         neg r13
+         and r13,3
+
+;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+;;;     s->strstart - (IPos)MAX_DIST(s) : NIL;
+IFDEF INFOZIP
+        mov eax,07efah ; MAX_DIST = (WSIZE-MIN_LOOKAHEAD) (0x8000-(3+8+1))
+ELSE
+        mov eax, window_size
+        sub eax, MIN_LOOKAHEAD
+ENDIF
+        xor edi,edi
+        sub ebp, eax
+
+        mov r11d, prev_length
+
+        cmovng ebp,edi
+
+;;; int best_len = s->prev_length;
+
+
+;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+       lea  rsi,[r10+r11]
+
+;;; register ush scan_start = *(ushf*)scan;
+;;; register ush scan_end   = *(ushf*)(scan+best_len-1);
+;;; Posf *prev = s->prev;
+
+        movzx r12d,word ptr [r9]
+        movzx ebx, word ptr [r9 + r11 - 1]
+
+        mov rdi, prev_ad
+
+;;; Jump into the main loop.
+
+        mov edx, [chainlenwmask]
+
+        cmp bx,word ptr [rsi + r8 - 1]
+        jz  LookupLoopIsZero
+
+LookupLoop1:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+        jbe LeaveNow
+        sub edx, 00010000h
+        js  LeaveNow
+
+LoopEntry1:
+        cmp bx,word ptr [rsi + r8 - 1]
+        jz  LookupLoopIsZero
+
+LookupLoop2:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+        jbe LeaveNow
+        sub edx, 00010000h
+        js  LeaveNow
+
+LoopEntry2:
+        cmp bx,word ptr [rsi + r8 - 1]
+        jz  LookupLoopIsZero
+
+LookupLoop4:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+        jbe LeaveNow
+        sub edx, 00010000h
+        js  LeaveNow
+
+LoopEntry4:
+
+        cmp bx,word ptr [rsi + r8 - 1]
+        jnz LookupLoop1
+        jmp LookupLoopIsZero
+
+
+;;; do {
+;;;     match = s->window + cur_match;
+;;;     if (*(ushf*)(match+best_len-1) != scan_end ||
+;;;         *(ushf*)match != scan_start) continue;
+;;;     [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;;          && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; r8d = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+
+LookupLoop:
+        and r8d, edx
+
+        movzx   r8d, word ptr [rdi + r8*2]
+        cmp r8d, ebp
+        jbe LeaveNow
+        sub edx, 00010000h
+        js  LeaveNow
+
+LoopEntry:
+
+        cmp bx,word ptr [rsi + r8 - 1]
+        jnz LookupLoop1
+LookupLoopIsZero:
+        cmp     r12w, word ptr [r10 + r8]
+        jnz LookupLoop1
+
+
+;;; Store the current value of chainlen.
+        mov [chainlenwmask], edx
+
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+
+        lea rsi,[r8+r10]
+        mov rdx, 0fffffffffffffef8h; -(MAX_MATCH_8)
+        lea rsi, [rsi + r13 + 0108h] ;MAX_MATCH_8]
+        lea rdi, [r9 + r13 + 0108h] ;MAX_MATCH_8]
+
+        prefetcht1 [rsi+rdx]
+        prefetcht1 [rdi+rdx]
+
+
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust rdx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (rsi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+
+
+LoopCmps:
+        mov rax, [rsi + rdx]
+        xor rax, [rdi + rdx]
+        jnz LeaveLoopCmps
+
+        mov rax, [rsi + rdx + 8]
+        xor rax, [rdi + rdx + 8]
+        jnz LeaveLoopCmps8
+
+
+        mov rax, [rsi + rdx + 8+8]
+        xor rax, [rdi + rdx + 8+8]
+        jnz LeaveLoopCmps16
+
+        add rdx,8+8+8
+
+        jnz short LoopCmps
+        jmp short LenMaximum
+LeaveLoopCmps16: add rdx,8
+LeaveLoopCmps8: add rdx,8
+LeaveLoopCmps:
+
+        test    eax, 0000FFFFh
+        jnz LenLower
+
+        test eax,0ffffffffh
+
+        jnz LenLower32
+
+        add rdx,4
+        shr rax,32
+        or ax,ax
+        jnz LenLower
+
+LenLower32:
+        shr eax,16
+        add rdx,2
+LenLower:   sub al, 1
+        adc rdx, 0
+;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+;;; then automatically accept it as the best possible match and leave.
+
+        lea rax, [rdi + rdx]
+        sub rax, r9
+        cmp eax, MAX_MATCH
+        jge LenMaximum
+
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+;///////////////////////////////////
+
+        cmp eax, r11d
+        jg  LongerMatch
+
+        lea rsi,[r10+r11]
+
+        mov rdi, prev_ad
+        mov edx, [chainlenwmask]
+        jmp LookupLoop
+
+;;;         s->match_start = cur_match;
+;;;         best_len = len;
+;;;         if (len >= nice_match) break;
+;;;         scan_end = *(ushf*)(scan+best_len-1);
+
+LongerMatch:
+        mov r11d, eax
+        mov match_start, r8d
+        cmp eax, [nicematch]
+        jge LeaveNow
+
+        lea rsi,[r10+rax]
+
+        movzx   ebx, word ptr [r9 + rax - 1]
+        mov rdi, prev_ad
+        mov edx, [chainlenwmask]
+        jmp LookupLoop
+
+;;; Accept the current string, with the maximum possible length.
+
+LenMaximum:
+        mov r11d,MAX_MATCH
+        mov match_start, r8d
+
+;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+;;; return s->lookahead;
+
+LeaveNow:
+IFDEF INFOZIP
+        mov eax,r11d
+ELSE
+        mov eax, Lookahead
+        cmp r11d, eax
+        cmovng eax, r11d
+ENDIF
+
+;;; Restore the stack and return from whence we came.
+
+
+        mov rsi,[save_rsi]
+        mov rdi,[save_rdi]
+        mov rbx,[save_rbx]
+        mov rbp,[save_rbp]
+        mov r12,[save_r12]
+        mov r13,[save_r13]
+;        mov r14,[save_r14]
+;        mov r15,[save_r15]
+
+
+        ret 0
+; please don't remove this string !
+; Your can freely use gvmat64 in any free or commercial app
+; but it is far better don't remove the string in the binary!
+    db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
+longest_match   ENDP
+
+match_init PROC
+  ret 0
+match_init ENDP
+
+
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/inffas8664.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/inffas8664.c
new file mode 100644
index 000000000..aa861a333
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/inffas8664.c
@@ -0,0 +1,186 @@
+/* inffas8664.c is a hand tuned assembler version of inffast.c - fast decoding
+ * version for AMD64 on Windows using Microsoft C compiler
+ *
+ * Copyright (C) 1995-2003 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+ * Please use the copyright conditions above.
+ *
+ * 2005 - Adaptation to Microsoft C Compiler for AMD64 by Gilles Vollant
+ *
+ * inffas8664.c call function inffas8664fnc in inffasx64.asm
+ *  inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
+ *
+ * Dec-29-2003 -- I added AMD64 inflate asm support.  This version is also
+ * slightly quicker on x86 systems because, instead of using rep movsb to copy
+ * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
+ * bytes.  I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
+ * from http://fedora.linux.duke.edu/fc1_x86_64
+ * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
+ * 1GB ram.  The 64-bit version is about 4% faster than the 32-bit version,
+ * when decompressing mozilla-source-1.3.tar.gz.
+ *
+ * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
+ * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
+ * the moment.  I have successfully compiled and tested this code with gcc2.96,
+ * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
+ * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
+ * enabled.  I will attempt to merge the MMX code into this version.  Newer
+ * versions of this and inffast.S can be found at
+ * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
+ *
+ */
+
+#include <stdio.h>
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+/* Mark Adler's comments from inffast.c: */
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state->mode == LEN
+        strm->avail_in >= 6
+        strm->avail_out >= 258
+        start >= strm->avail_out
+        state->bits < 8
+
+   On return, state->mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm->avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm->avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+
+
+
+    typedef struct inffast_ar {
+/* 64   32                               x86  x86_64 */
+/* ar offset                              register */
+/*  0    0 */ void *esp;                /* esp save */
+/*  8    4 */ void *ebp;                /* ebp save */
+/* 16    8 */ unsigned char FAR *in;    /* esi rsi  local strm->next_in */
+/* 24   12 */ unsigned char FAR *last;  /*     r9   while in < last */
+/* 32   16 */ unsigned char FAR *out;   /* edi rdi  local strm->next_out */
+/* 40   20 */ unsigned char FAR *beg;   /*          inflate()'s init next_out */
+/* 48   24 */ unsigned char FAR *end;   /*     r10  while out < end */
+/* 56   28 */ unsigned char FAR *window;/*          size of window, wsize!=0 */
+/* 64   32 */ code const FAR *lcode;    /* ebp rbp  local strm->lencode */
+/* 72   36 */ code const FAR *dcode;    /*     r11  local strm->distcode */
+/* 80   40 */ size_t /*unsigned long */hold;       /* edx rdx  local strm->hold */
+/* 88   44 */ unsigned bits;            /* ebx rbx  local strm->bits */
+/* 92   48 */ unsigned wsize;           /*          window size */
+/* 96   52 */ unsigned write;           /*          window write index */
+/*100   56 */ unsigned lmask;           /*     r12  mask for lcode */
+/*104   60 */ unsigned dmask;           /*     r13  mask for dcode */
+/*108   64 */ unsigned len;             /*     r14  match length */
+/*112   68 */ unsigned dist;            /*     r15  match distance */
+/*116   72 */ unsigned status;          /*          set when state chng*/
+    } type_ar;
+#ifdef ASMINF
+
+void inflate_fast(strm, start)
+z_streamp strm;
+unsigned start;         /* inflate()'s starting value for strm->avail_out */
+{
+    struct inflate_state FAR *state;
+    type_ar ar;
+    void inffas8664fnc(struct inffast_ar * par);
+
+
+
+#if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))
+#define PAD_AVAIL_IN 6
+#define PAD_AVAIL_OUT 258
+#else
+#define PAD_AVAIL_IN 5
+#define PAD_AVAIL_OUT 257
+#endif
+
+    /* copy state to local variables */
+    state = (struct inflate_state FAR *)strm->state;
+
+    ar.in = strm->next_in;
+    ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
+    ar.out = strm->next_out;
+    ar.beg = ar.out - (start - strm->avail_out);
+    ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
+    ar.wsize = state->wsize;
+    ar.write = state->wnext;
+    ar.window = state->window;
+    ar.hold = state->hold;
+    ar.bits = state->bits;
+    ar.lcode = state->lencode;
+    ar.dcode = state->distcode;
+    ar.lmask = (1U << state->lenbits) - 1;
+    ar.dmask = (1U << state->distbits) - 1;
+
+    /* decode literals and length/distances until end-of-block or not enough
+       input data or output space */
+
+    /* align in on 1/2 hold size boundary */
+    while (((size_t)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
+        ar.hold += (unsigned long)*ar.in++ << ar.bits;
+        ar.bits += 8;
+    }
+
+    inffas8664fnc(&ar);
+
+    if (ar.status > 1) {
+        if (ar.status == 2)
+            strm->msg = "invalid literal/length code";
+        else if (ar.status == 3)
+            strm->msg = "invalid distance code";
+        else
+            strm->msg = "invalid distance too far back";
+        state->mode = BAD;
+    }
+    else if ( ar.status == 1 ) {
+        state->mode = TYPE;
+    }
+
+    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+    ar.len = ar.bits >> 3;
+    ar.in -= ar.len;
+    ar.bits -= ar.len << 3;
+    ar.hold &= (1U << ar.bits) - 1;
+
+    /* update state and return */
+    strm->next_in = ar.in;
+    strm->next_out = ar.out;
+    strm->avail_in = (unsigned)(ar.in < ar.last ?
+                                PAD_AVAIL_IN + (ar.last - ar.in) :
+                                PAD_AVAIL_IN - (ar.in - ar.last));
+    strm->avail_out = (unsigned)(ar.out < ar.end ?
+                                 PAD_AVAIL_OUT + (ar.end - ar.out) :
+                                 PAD_AVAIL_OUT - (ar.out - ar.end));
+    state->hold = (unsigned long)ar.hold;
+    state->bits = ar.bits;
+    return;
+}
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/inffasx64.asm b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/inffasx64.asm
new file mode 100644
index 000000000..41ec82392
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/inffasx64.asm
@@ -0,0 +1,396 @@
+; inffasx64.asm is a hand tuned assembler version of inffast.c - fast decoding
+; version for AMD64 on Windows using Microsoft C compiler
+;
+; inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
+; inffasx64.asm is called by inffas8664.c, which contain more info.
+
+
+; to compile this file, I use option
+;   ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
+;   with Microsoft Macro Assembler (x64) for AMD64
+;
+
+; This file compile with Microsoft Macro Assembler (x64) for AMD64
+;
+;   ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
+;
+;   (you can get Windows WDK with ml64 for AMD64 from
+;      http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
+;
+
+
+.code
+inffas8664fnc PROC
+
+; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
+; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
+;
+; All registers must be preserved across the call, except for
+;   rax, rcx, rdx, r8, r-9, r10, and r11, which are scratch.
+
+
+	mov [rsp-8],rsi
+	mov [rsp-16],rdi
+	mov [rsp-24],r12
+	mov [rsp-32],r13
+	mov [rsp-40],r14
+	mov [rsp-48],r15
+	mov [rsp-56],rbx
+
+	mov rax,rcx
+
+	mov	[rax+8], rbp       ; /* save regs rbp and rsp */
+	mov	[rax], rsp
+
+	mov	rsp, rax          ; /* make rsp point to &ar */
+
+	mov	rsi, [rsp+16]      ; /* rsi  = in */
+	mov	rdi, [rsp+32]      ; /* rdi  = out */
+	mov	r9, [rsp+24]       ; /* r9   = last */
+	mov	r10, [rsp+48]      ; /* r10  = end */
+	mov	rbp, [rsp+64]      ; /* rbp  = lcode */
+	mov	r11, [rsp+72]      ; /* r11  = dcode */
+	mov	rdx, [rsp+80]      ; /* rdx  = hold */
+	mov	ebx, [rsp+88]      ; /* ebx  = bits */
+	mov	r12d, [rsp+100]    ; /* r12d = lmask */
+	mov	r13d, [rsp+104]    ; /* r13d = dmask */
+                                          ; /* r14d = len */
+                                          ; /* r15d = dist */
+
+
+	cld
+	cmp	r10, rdi
+	je	L_one_time           ; /* if only one decode left */
+	cmp	r9, rsi
+
+    jne L_do_loop
+
+
+L_one_time:
+	mov	r8, r12           ; /* r8 = lmask */
+	cmp	bl, 32
+	ja	L_get_length_code_one_time
+
+	lodsd                         ; /* eax = *(uint *)in++ */
+	mov	cl, bl            ; /* cl = bits, needs it for shifting */
+	add	bl, 32             ; /* bits += 32 */
+	shl	rax, cl
+	or	rdx, rax          ; /* hold |= *((uint *)in)++ << bits */
+	jmp	L_get_length_code_one_time
+
+ALIGN 4
+L_while_test:
+	cmp	r10, rdi
+	jbe	L_break_loop
+	cmp	r9, rsi
+	jbe	L_break_loop
+
+L_do_loop:
+	mov	r8, r12           ; /* r8 = lmask */
+	cmp	bl, 32
+	ja	L_get_length_code    ; /* if (32 < bits) */
+
+	lodsd                         ; /* eax = *(uint *)in++ */
+	mov	cl, bl            ; /* cl = bits, needs it for shifting */
+	add	bl, 32             ; /* bits += 32 */
+	shl	rax, cl
+	or	rdx, rax          ; /* hold |= *((uint *)in)++ << bits */
+
+L_get_length_code:
+	and	r8, rdx            ; /* r8 &= hold */
+	mov	eax, [rbp+r8*4]  ; /* eax = lcode[hold & lmask] */
+
+	mov	cl, ah            ; /* cl = this.bits */
+	sub	bl, ah            ; /* bits -= this.bits */
+	shr	rdx, cl           ; /* hold >>= this.bits */
+
+	test	al, al
+	jnz	L_test_for_length_base ; /* if (op != 0) 45.7% */
+
+	mov	r8, r12            ; /* r8 = lmask */
+	shr	eax, 16            ; /* output this.val char */
+	stosb
+
+L_get_length_code_one_time:
+	and	r8, rdx            ; /* r8 &= hold */
+	mov	eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */
+
+L_dolen:
+	mov	cl, ah            ; /* cl = this.bits */
+	sub	bl, ah            ; /* bits -= this.bits */
+	shr	rdx, cl           ; /* hold >>= this.bits */
+
+	test	al, al
+	jnz	L_test_for_length_base ; /* if (op != 0) 45.7% */
+
+	shr	eax, 16            ; /* output this.val char */
+	stosb
+	jmp	L_while_test
+
+ALIGN 4
+L_test_for_length_base:
+	mov	r14d, eax         ; /* len = this */
+	shr	r14d, 16           ; /* len = this.val */
+	mov	cl, al
+
+	test	al, 16
+	jz	L_test_for_second_level_length ; /* if ((op & 16) == 0) 8% */
+	and	cl, 15             ; /* op &= 15 */
+	jz	L_decode_distance    ; /* if (!op) */
+
+L_add_bits_to_len:
+	sub	bl, cl
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx          ; /* eax &= hold */
+	shr	rdx, cl
+	add	r14d, eax         ; /* len += hold & mask[op] */
+
+L_decode_distance:
+	mov	r8, r13           ; /* r8 = dmask */
+	cmp	bl, 32
+	ja	L_get_distance_code  ; /* if (32 < bits) */
+
+	lodsd                         ; /* eax = *(uint *)in++ */
+	mov	cl, bl            ; /* cl = bits, needs it for shifting */
+	add	bl, 32             ; /* bits += 32 */
+	shl	rax, cl
+	or	rdx, rax          ; /* hold |= *((uint *)in)++ << bits */
+
+L_get_distance_code:
+	and	r8, rdx           ; /* r8 &= hold */
+	mov	eax, [r11+r8*4] ; /* eax = dcode[hold & dmask] */
+
+L_dodist:
+	mov	r15d, eax         ; /* dist = this */
+	shr	r15d, 16           ; /* dist = this.val */
+	mov	cl, ah
+	sub	bl, ah            ; /* bits -= this.bits */
+	shr	rdx, cl           ; /* hold >>= this.bits */
+	mov	cl, al            ; /* cl = this.op */
+
+	test	al, 16             ; /* if ((op & 16) == 0) */
+	jz	L_test_for_second_level_dist
+	and	cl, 15             ; /* op &= 15 */
+	jz	L_check_dist_one
+
+L_add_bits_to_dist:
+	sub	bl, cl
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax                 ; /* (1 << op) - 1 */
+	and	eax, edx          ; /* eax &= hold */
+	shr	rdx, cl
+	add	r15d, eax         ; /* dist += hold & ((1 << op) - 1) */
+
+L_check_window:
+	mov	r8, rsi           ; /* save in so from can use it's reg */
+	mov	rax, rdi
+	sub	rax, [rsp+40]      ; /* nbytes = out - beg */
+
+	cmp	eax, r15d
+	jb	L_clip_window        ; /* if (dist > nbytes) 4.2% */
+
+	mov	ecx, r14d         ; /* ecx = len */
+	mov	rsi, rdi
+	sub	rsi, r15          ; /* from = out - dist */
+
+	sar	ecx, 1
+	jnc	L_copy_two           ; /* if len % 2 == 0 */
+
+	rep     movsw
+	mov	al, [rsi]
+	mov	[rdi], al
+	inc	rdi
+
+	mov	rsi, r8           ; /* move in back to %rsi, toss from */
+	jmp	L_while_test
+
+L_copy_two:
+	rep     movsw
+	mov	rsi, r8           ; /* move in back to %rsi, toss from */
+	jmp	L_while_test
+
+ALIGN 4
+L_check_dist_one:
+	cmp	r15d, 1            ; /* if dist 1, is a memset */
+	jne	L_check_window
+	cmp	[rsp+40], rdi      ; /* if out == beg, outside window */
+	je	L_check_window
+
+	mov	ecx, r14d         ; /* ecx = len */
+	mov	al, [rdi-1]
+	mov	ah, al
+
+	sar	ecx, 1
+	jnc	L_set_two
+	mov	[rdi], al
+	inc	rdi
+
+L_set_two:
+	rep     stosw
+	jmp	L_while_test
+
+ALIGN 4
+L_test_for_second_level_length:
+	test	al, 64
+	jnz	L_test_for_end_of_block ; /* if ((op & 64) != 0) */
+
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx         ; /* eax &= hold */
+	add	eax, r14d        ; /* eax += len */
+	mov	eax, [rbp+rax*4] ; /* eax = lcode[val+(hold&mask[op])]*/
+	jmp	L_dolen
+
+ALIGN 4
+L_test_for_second_level_dist:
+	test	al, 64
+	jnz	L_invalid_distance_code ; /* if ((op & 64) != 0) */
+
+	xor	eax, eax
+	inc	eax
+	shl	eax, cl
+	dec	eax
+	and	eax, edx         ; /* eax &= hold */
+	add	eax, r15d        ; /* eax += dist */
+	mov	eax, [r11+rax*4] ; /* eax = dcode[val+(hold&mask[op])]*/
+	jmp	L_dodist
+
+ALIGN 4
+L_clip_window:
+	mov	ecx, eax         ; /* ecx = nbytes */
+	mov	eax, [rsp+92]     ; /* eax = wsize, prepare for dist cmp */
+	neg	ecx                ; /* nbytes = -nbytes */
+
+	cmp	eax, r15d
+	jb	L_invalid_distance_too_far ; /* if (dist > wsize) */
+
+	add	ecx, r15d         ; /* nbytes = dist - nbytes */
+	cmp	dword ptr [rsp+96], 0
+	jne	L_wrap_around_window ; /* if (write != 0) */
+
+	mov	rsi, [rsp+56]     ; /* from  = window */
+	sub	eax, ecx         ; /* eax  -= nbytes */
+	add	rsi, rax         ; /* from += wsize - nbytes */
+
+	mov	eax, r14d        ; /* eax = len */
+	cmp	r14d, ecx
+	jbe	L_do_copy           ; /* if (nbytes >= len) */
+
+	sub	eax, ecx         ; /* eax -= nbytes */
+	rep     movsb
+	mov	rsi, rdi
+	sub	rsi, r15         ; /* from = &out[ -dist ] */
+	jmp	L_do_copy
+
+ALIGN 4
+L_wrap_around_window:
+	mov	eax, [rsp+96]     ; /* eax = write */
+	cmp	ecx, eax
+	jbe	L_contiguous_in_window ; /* if (write >= nbytes) */
+
+	mov	esi, [rsp+92]     ; /* from  = wsize */
+	add	rsi, [rsp+56]     ; /* from += window */
+	add	rsi, rax         ; /* from += write */
+	sub	rsi, rcx         ; /* from -= nbytes */
+	sub	ecx, eax         ; /* nbytes -= write */
+
+	mov	eax, r14d        ; /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy           ; /* if (nbytes >= len) */
+
+	sub	eax, ecx         ; /* len -= nbytes */
+	rep     movsb
+	mov	rsi, [rsp+56]     ; /* from = window */
+	mov	ecx, [rsp+96]     ; /* nbytes = write */
+	cmp	eax, ecx
+	jbe	L_do_copy           ; /* if (nbytes >= len) */
+
+	sub	eax, ecx         ; /* len -= nbytes */
+	rep     movsb
+	mov	rsi, rdi
+	sub	rsi, r15         ; /* from = out - dist */
+	jmp	L_do_copy
+
+ALIGN 4
+L_contiguous_in_window:
+	mov	rsi, [rsp+56]     ; /* rsi = window */
+	add	rsi, rax
+	sub	rsi, rcx         ; /* from += write - nbytes */
+
+	mov	eax, r14d        ; /* eax = len */
+	cmp	eax, ecx
+	jbe	L_do_copy           ; /* if (nbytes >= len) */
+
+	sub	eax, ecx         ; /* len -= nbytes */
+	rep     movsb
+	mov	rsi, rdi
+	sub	rsi, r15         ; /* from = out - dist */
+	jmp	L_do_copy           ; /* if (nbytes >= len) */
+
+ALIGN 4
+L_do_copy:
+	mov	ecx, eax         ; /* ecx = len */
+	rep     movsb
+
+	mov	rsi, r8          ; /* move in back to %esi, toss from */
+	jmp	L_while_test
+
+L_test_for_end_of_block:
+	test	al, 32
+	jz	L_invalid_literal_length_code
+	mov	dword ptr [rsp+116], 1
+	jmp	L_break_loop_with_status
+
+L_invalid_literal_length_code:
+	mov	dword ptr [rsp+116], 2
+	jmp	L_break_loop_with_status
+
+L_invalid_distance_code:
+	mov	dword ptr [rsp+116], 3
+	jmp	L_break_loop_with_status
+
+L_invalid_distance_too_far:
+	mov	dword ptr [rsp+116], 4
+	jmp	L_break_loop_with_status
+
+L_break_loop:
+	mov	dword ptr [rsp+116], 0
+
+L_break_loop_with_status:
+; /* put in, out, bits, and hold back into ar and pop esp */
+	mov	[rsp+16], rsi     ; /* in */
+	mov	[rsp+32], rdi     ; /* out */
+	mov	[rsp+88], ebx     ; /* bits */
+	mov	[rsp+80], rdx     ; /* hold */
+
+	mov	rax, [rsp]       ; /* restore rbp and rsp */
+	mov	rbp, [rsp+8]
+	mov	rsp, rax
+
+
+
+	mov rsi,[rsp-8]
+	mov rdi,[rsp-16]
+	mov r12,[rsp-24]
+	mov r13,[rsp-32]
+	mov r14,[rsp-40]
+	mov r15,[rsp-48]
+	mov rbx,[rsp-56]
+
+    ret 0
+;          :
+;          : "m" (ar)
+;          : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
+;            "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
+;    );
+
+inffas8664fnc 	ENDP
+;_TEXT	ENDS
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/readme.txt
new file mode 100644
index 000000000..652571c7a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx64/readme.txt
@@ -0,0 +1,31 @@
+Summary
+-------
+This directory contains ASM implementations of the functions
+longest_match() and inflate_fast(), for 64 bits x86 (both AMD64 and Intel EM64t),
+for use with Microsoft Macro Assembler (x64) for AMD64 and Microsoft C++ 64 bits.
+
+gvmat64.asm is written by Gilles Vollant (2005), by using Brian Raiter 686/32 bits
+   assembly optimized version from Jean-loup Gailly original longest_match function
+
+inffasx64.asm and inffas8664.c were written by Chris Anderson, by optimizing
+   original function from Mark Adler
+
+Use instructions
+----------------
+Assemble the .asm files using MASM and put the object files into the zlib source
+directory.  You can also get object files here:
+
+     http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
+
+define ASMV and ASMINF in your project. Include inffas8664.c in your source tree,
+and inffasx64.obj and gvmat64.obj as object to link.
+
+
+Build instructions
+------------------
+run bld_64.bat with Microsoft Macro Assembler (x64) for AMD64 (ml64.exe)
+
+ml64.exe is given with Visual Studio 2005, Windows 2003 server DDK
+
+You can get Windows 2003 server DDK with ml64 and cl for AMD64 from
+  http://www.microsoft.com/whdc/devtools/ddk/default.mspx for low price)
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/bld_ml32.bat b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/bld_ml32.bat
new file mode 100644
index 000000000..fcf5755e4
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/bld_ml32.bat
@@ -0,0 +1,2 @@
+ml /coff /Zi /c /Flmatch686.lst match686.asm
+ml /coff /Zi /c /Flinffas32.lst inffas32.asm
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/inffas32.asm b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/inffas32.asm
new file mode 100644
index 000000000..cb37a81e4
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/inffas32.asm
@@ -0,0 +1,1080 @@
+;/* inffas32.asm is a hand tuned assembler version of inffast.c -- fast decoding
+; *
+; * inffas32.asm is derivated from inffas86.c, with translation of assembly code
+; *
+; * Copyright (C) 1995-2003 Mark Adler
+; * For conditions of distribution and use, see copyright notice in zlib.h
+; *
+; * Copyright (C) 2003 Chris Anderson <christop@charm.net>
+; * Please use the copyright conditions above.
+; *
+; * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
+; * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
+; * the moment.  I have successfully compiled and tested this code with gcc2.96,
+; * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
+; * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
+; * enabled.  I will attempt to merge the MMX code into this version.  Newer
+; * versions of this and inffast.S can be found at
+; * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
+; *
+; * 2005 : modification by Gilles Vollant
+; */
+; For Visual C++ 4.x and higher and ML 6.x and higher
+;   ml.exe is in directory \MASM611C of Win95 DDK
+;   ml.exe is also distributed in http://www.masm32.com/masmdl.htm
+;    and in VC++2003 toolkit at http://msdn.microsoft.com/visualc/vctoolkit2003/
+;
+;
+;   compile with command line option
+;   ml  /coff /Zi /c /Flinffas32.lst inffas32.asm
+
+;   if you define NO_GZIP (see inflate.h), compile with
+;   ml  /coff /Zi /c /Flinffas32.lst /DNO_GUNZIP inffas32.asm
+
+
+; zlib122sup is 0 fort zlib 1.2.2.1 and lower
+; zlib122sup is 8 fort zlib 1.2.2.2 and more (with addition of dmax and head
+;        in inflate_state in inflate.h)
+zlib1222sup      equ    8
+
+
+IFDEF GUNZIP
+  INFLATE_MODE_TYPE    equ 11
+  INFLATE_MODE_BAD     equ 26
+ELSE
+  IFNDEF NO_GUNZIP
+    INFLATE_MODE_TYPE    equ 11
+    INFLATE_MODE_BAD     equ 26
+  ELSE
+    INFLATE_MODE_TYPE    equ 3
+    INFLATE_MODE_BAD     equ 17
+  ENDIF
+ENDIF
+
+
+; 75 "inffast.S"
+;FILE "inffast.S"
+
+;;;GLOBAL _inflate_fast
+
+;;;SECTION .text
+
+
+
+	.586p
+	.mmx
+
+	name	inflate_fast_x86
+	.MODEL	FLAT
+
+_DATA			segment
+inflate_fast_use_mmx:
+	dd	1
+
+
+_TEXT			segment
+
+
+
+ALIGN 4
+	db	'Fast decoding Code from Chris Anderson'
+	db	0
+
+ALIGN 4
+invalid_literal_length_code_msg:
+	db	'invalid literal/length code'
+	db	0
+
+ALIGN 4
+invalid_distance_code_msg:
+	db	'invalid distance code'
+	db	0
+
+ALIGN 4
+invalid_distance_too_far_msg:
+	db	'invalid distance too far back'
+	db	0
+
+
+ALIGN 4
+inflate_fast_mask:
+dd	0
+dd	1
+dd	3
+dd	7
+dd	15
+dd	31
+dd	63
+dd	127
+dd	255
+dd	511
+dd	1023
+dd	2047
+dd	4095
+dd	8191
+dd	16383
+dd	32767
+dd	65535
+dd	131071
+dd	262143
+dd	524287
+dd	1048575
+dd	2097151
+dd	4194303
+dd	8388607
+dd	16777215
+dd	33554431
+dd	67108863
+dd	134217727
+dd	268435455
+dd	536870911
+dd	1073741823
+dd	2147483647
+dd	4294967295
+
+
+mode_state	 equ	0	;/* state->mode	*/
+wsize_state	 equ	(32+zlib1222sup)	;/* state->wsize */
+write_state	 equ	(36+4+zlib1222sup)	;/* state->write */
+window_state	 equ	(40+4+zlib1222sup)	;/* state->window */
+hold_state	 equ	(44+4+zlib1222sup)	;/* state->hold	*/
+bits_state	 equ	(48+4+zlib1222sup)	;/* state->bits	*/
+lencode_state	 equ	(64+4+zlib1222sup)	;/* state->lencode */
+distcode_state	 equ	(68+4+zlib1222sup)	;/* state->distcode */
+lenbits_state	 equ	(72+4+zlib1222sup)	;/* state->lenbits */
+distbits_state	 equ	(76+4+zlib1222sup)	;/* state->distbits */
+
+
+;;SECTION .text
+; 205 "inffast.S"
+;GLOBAL	inflate_fast_use_mmx
+
+;SECTION .data
+
+
+; GLOBAL inflate_fast_use_mmx:object
+;.size inflate_fast_use_mmx, 4
+; 226 "inffast.S"
+;SECTION .text
+
+ALIGN 4
+_inflate_fast proc near
+.FPO (16, 4, 0, 0, 1, 0)
+	push  edi
+	push  esi
+	push  ebp
+	push  ebx
+	pushfd
+	sub  esp,64
+	cld
+
+
+
+
+	mov  esi, [esp+88]
+	mov  edi, [esi+28]
+
+
+
+
+
+
+
+	mov  edx, [esi+4]
+	mov  eax, [esi+0]
+
+	add  edx,eax
+	sub  edx,11
+
+	mov  [esp+44],eax
+	mov  [esp+20],edx
+
+	mov  ebp, [esp+92]
+	mov  ecx, [esi+16]
+	mov  ebx, [esi+12]
+
+	sub  ebp,ecx
+	neg  ebp
+	add  ebp,ebx
+
+	sub  ecx,257
+	add  ecx,ebx
+
+	mov  [esp+60],ebx
+	mov  [esp+40],ebp
+	mov  [esp+16],ecx
+; 285 "inffast.S"
+	mov  eax, [edi+lencode_state]
+	mov  ecx, [edi+distcode_state]
+
+	mov  [esp+8],eax
+	mov  [esp+12],ecx
+
+	mov  eax,1
+	mov  ecx, [edi+lenbits_state]
+	shl  eax,cl
+	dec  eax
+	mov  [esp+0],eax
+
+	mov  eax,1
+	mov  ecx, [edi+distbits_state]
+	shl  eax,cl
+	dec  eax
+	mov  [esp+4],eax
+
+	mov  eax, [edi+wsize_state]
+	mov  ecx, [edi+write_state]
+	mov  edx, [edi+window_state]
+
+	mov  [esp+52],eax
+	mov  [esp+48],ecx
+	mov  [esp+56],edx
+
+	mov  ebp, [edi+hold_state]
+	mov  ebx, [edi+bits_state]
+; 321 "inffast.S"
+	mov  esi, [esp+44]
+	mov  ecx, [esp+20]
+	cmp  ecx,esi
+	ja   L_align_long
+
+	add  ecx,11
+	sub  ecx,esi
+	mov  eax,12
+	sub  eax,ecx
+	lea  edi, [esp+28]
+	rep movsb
+	mov  ecx,eax
+	xor  eax,eax
+	rep stosb
+	lea  esi, [esp+28]
+	mov  [esp+20],esi
+	jmp  L_is_aligned
+
+
+L_align_long:
+	test  esi,3
+	jz   L_is_aligned
+	xor  eax,eax
+	mov  al, [esi]
+	inc  esi
+	mov  ecx,ebx
+	add  ebx,8
+	shl  eax,cl
+	or  ebp,eax
+	jmp L_align_long
+
+L_is_aligned:
+	mov  edi, [esp+60]
+; 366 "inffast.S"
+L_check_mmx:
+	cmp  dword ptr [inflate_fast_use_mmx],2
+	je   L_init_mmx
+	ja   L_do_loop
+
+	push  eax
+	push  ebx
+	push  ecx
+	push  edx
+	pushfd
+	mov  eax, [esp]
+	xor  dword ptr [esp],0200000h
+
+
+
+
+	popfd
+	pushfd
+	pop  edx
+	xor  edx,eax
+	jz   L_dont_use_mmx
+	xor  eax,eax
+	cpuid
+	cmp  ebx,0756e6547h
+	jne  L_dont_use_mmx
+	cmp  ecx,06c65746eh
+	jne  L_dont_use_mmx
+	cmp  edx,049656e69h
+	jne  L_dont_use_mmx
+	mov  eax,1
+	cpuid
+	shr  eax,8
+	and  eax,15
+	cmp  eax,6
+	jne  L_dont_use_mmx
+	test  edx,0800000h
+	jnz  L_use_mmx
+	jmp  L_dont_use_mmx
+L_use_mmx:
+	mov  dword ptr [inflate_fast_use_mmx],2
+	jmp  L_check_mmx_pop
+L_dont_use_mmx:
+	mov  dword ptr [inflate_fast_use_mmx],3
+L_check_mmx_pop:
+	pop  edx
+	pop  ecx
+	pop  ebx
+	pop  eax
+	jmp  L_check_mmx
+; 426 "inffast.S"
+ALIGN 4
+L_do_loop:
+; 437 "inffast.S"
+	cmp  bl,15
+	ja   L_get_length_code
+
+	xor  eax,eax
+	lodsw
+	mov  cl,bl
+	add  bl,16
+	shl  eax,cl
+	or  ebp,eax
+
+L_get_length_code:
+	mov  edx, [esp+0]
+	mov  ecx, [esp+8]
+	and  edx,ebp
+	mov  eax, [ecx+edx*4]
+
+L_dolen:
+
+
+
+
+
+
+	mov  cl,ah
+	sub  bl,ah
+	shr  ebp,cl
+
+
+
+
+
+
+	test  al,al
+	jnz   L_test_for_length_base
+
+	shr  eax,16
+	stosb
+
+L_while_test:
+
+
+	cmp  [esp+16],edi
+	jbe  L_break_loop
+
+	cmp  [esp+20],esi
+	ja   L_do_loop
+	jmp  L_break_loop
+
+L_test_for_length_base:
+; 502 "inffast.S"
+	mov  edx,eax
+	shr  edx,16
+	mov  cl,al
+
+	test  al,16
+	jz   L_test_for_second_level_length
+	and  cl,15
+	jz   L_save_len
+	cmp  bl,cl
+	jae  L_add_bits_to_len
+
+	mov  ch,cl
+	xor  eax,eax
+	lodsw
+	mov  cl,bl
+	add  bl,16
+	shl  eax,cl
+	or  ebp,eax
+	mov  cl,ch
+
+L_add_bits_to_len:
+	mov  eax,1
+	shl  eax,cl
+	dec  eax
+	sub  bl,cl
+	and  eax,ebp
+	shr  ebp,cl
+	add  edx,eax
+
+L_save_len:
+	mov  [esp+24],edx
+
+
+L_decode_distance:
+; 549 "inffast.S"
+	cmp  bl,15
+	ja   L_get_distance_code
+
+	xor  eax,eax
+	lodsw
+	mov  cl,bl
+	add  bl,16
+	shl  eax,cl
+	or  ebp,eax
+
+L_get_distance_code:
+	mov  edx, [esp+4]
+	mov  ecx, [esp+12]
+	and  edx,ebp
+	mov  eax, [ecx+edx*4]
+
+
+L_dodist:
+	mov  edx,eax
+	shr  edx,16
+	mov  cl,ah
+	sub  bl,ah
+	shr  ebp,cl
+; 584 "inffast.S"
+	mov  cl,al
+
+	test  al,16
+	jz  L_test_for_second_level_dist
+	and  cl,15
+	jz  L_check_dist_one
+	cmp  bl,cl
+	jae  L_add_bits_to_dist
+
+	mov  ch,cl
+	xor  eax,eax
+	lodsw
+	mov  cl,bl
+	add  bl,16
+	shl  eax,cl
+	or  ebp,eax
+	mov  cl,ch
+
+L_add_bits_to_dist:
+	mov  eax,1
+	shl  eax,cl
+	dec  eax
+	sub  bl,cl
+	and  eax,ebp
+	shr  ebp,cl
+	add  edx,eax
+	jmp  L_check_window
+
+L_check_window:
+; 625 "inffast.S"
+	mov  [esp+44],esi
+	mov  eax,edi
+	sub  eax, [esp+40]
+
+	cmp  eax,edx
+	jb   L_clip_window
+
+	mov  ecx, [esp+24]
+	mov  esi,edi
+	sub  esi,edx
+
+	sub  ecx,3
+	mov  al, [esi]
+	mov  [edi],al
+	mov  al, [esi+1]
+	mov  dl, [esi+2]
+	add  esi,3
+	mov  [edi+1],al
+	mov  [edi+2],dl
+	add  edi,3
+	rep movsb
+
+	mov  esi, [esp+44]
+	jmp  L_while_test
+
+ALIGN 4
+L_check_dist_one:
+	cmp  edx,1
+	jne  L_check_window
+	cmp  [esp+40],edi
+	je  L_check_window
+
+	dec  edi
+	mov  ecx, [esp+24]
+	mov  al, [edi]
+	sub  ecx,3
+
+	mov  [edi+1],al
+	mov  [edi+2],al
+	mov  [edi+3],al
+	add  edi,4
+	rep stosb
+
+	jmp  L_while_test
+
+ALIGN 4
+L_test_for_second_level_length:
+
+
+
+
+	test  al,64
+	jnz   L_test_for_end_of_block
+
+	mov  eax,1
+	shl  eax,cl
+	dec  eax
+	and  eax,ebp
+	add  eax,edx
+	mov  edx, [esp+8]
+	mov  eax, [edx+eax*4]
+	jmp  L_dolen
+
+ALIGN 4
+L_test_for_second_level_dist:
+
+
+
+
+	test  al,64
+	jnz   L_invalid_distance_code
+
+	mov  eax,1
+	shl  eax,cl
+	dec  eax
+	and  eax,ebp
+	add  eax,edx
+	mov  edx, [esp+12]
+	mov  eax, [edx+eax*4]
+	jmp  L_dodist
+
+ALIGN 4
+L_clip_window:
+; 721 "inffast.S"
+	mov  ecx,eax
+	mov  eax, [esp+52]
+	neg  ecx
+	mov  esi, [esp+56]
+
+	cmp  eax,edx
+	jb   L_invalid_distance_too_far
+
+	add  ecx,edx
+	cmp  dword ptr [esp+48],0
+	jne  L_wrap_around_window
+
+	sub  eax,ecx
+	add  esi,eax
+; 749 "inffast.S"
+	mov  eax, [esp+24]
+	cmp  eax,ecx
+	jbe  L_do_copy1
+
+	sub  eax,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,edx
+	jmp  L_do_copy1
+
+	cmp  eax,ecx
+	jbe  L_do_copy1
+
+	sub  eax,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,edx
+	jmp  L_do_copy1
+
+L_wrap_around_window:
+; 793 "inffast.S"
+	mov  eax, [esp+48]
+	cmp  ecx,eax
+	jbe  L_contiguous_in_window
+
+	add  esi, [esp+52]
+	add  esi,eax
+	sub  esi,ecx
+	sub  ecx,eax
+
+
+	mov  eax, [esp+24]
+	cmp  eax,ecx
+	jbe  L_do_copy1
+
+	sub  eax,ecx
+	rep movsb
+	mov  esi, [esp+56]
+	mov  ecx, [esp+48]
+	cmp  eax,ecx
+	jbe  L_do_copy1
+
+	sub  eax,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,edx
+	jmp  L_do_copy1
+
+L_contiguous_in_window:
+; 836 "inffast.S"
+	add  esi,eax
+	sub  esi,ecx
+
+
+	mov  eax, [esp+24]
+	cmp  eax,ecx
+	jbe  L_do_copy1
+
+	sub  eax,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,edx
+
+L_do_copy1:
+; 862 "inffast.S"
+	mov  ecx,eax
+	rep movsb
+
+	mov  esi, [esp+44]
+	jmp  L_while_test
+; 878 "inffast.S"
+ALIGN 4
+L_init_mmx:
+	emms
+
+
+
+
+
+	movd mm0,ebp
+	mov  ebp,ebx
+; 896 "inffast.S"
+	movd mm4,dword ptr [esp+0]
+	movq mm3,mm4
+	movd mm5,dword ptr [esp+4]
+	movq mm2,mm5
+	pxor mm1,mm1
+	mov  ebx, [esp+8]
+	jmp  L_do_loop_mmx
+
+ALIGN 4
+L_do_loop_mmx:
+	psrlq mm0,mm1
+
+	cmp  ebp,32
+	ja  L_get_length_code_mmx
+
+	movd mm6,ebp
+	movd mm7,dword ptr [esi]
+	add  esi,4
+	psllq mm7,mm6
+	add  ebp,32
+	por mm0,mm7
+
+L_get_length_code_mmx:
+	pand mm4,mm0
+	movd eax,mm4
+	movq mm4,mm3
+	mov  eax, [ebx+eax*4]
+
+L_dolen_mmx:
+	movzx  ecx,ah
+	movd mm1,ecx
+	sub  ebp,ecx
+
+	test  al,al
+	jnz L_test_for_length_base_mmx
+
+	shr  eax,16
+	stosb
+
+L_while_test_mmx:
+
+
+	cmp  [esp+16],edi
+	jbe L_break_loop
+
+	cmp  [esp+20],esi
+	ja L_do_loop_mmx
+	jmp L_break_loop
+
+L_test_for_length_base_mmx:
+
+	mov  edx,eax
+	shr  edx,16
+
+	test  al,16
+	jz  L_test_for_second_level_length_mmx
+	and  eax,15
+	jz L_decode_distance_mmx
+
+	psrlq mm0,mm1
+	movd mm1,eax
+	movd ecx,mm0
+	sub  ebp,eax
+	and  ecx, [inflate_fast_mask+eax*4]
+	add  edx,ecx
+
+L_decode_distance_mmx:
+	psrlq mm0,mm1
+
+	cmp  ebp,32
+	ja L_get_dist_code_mmx
+
+	movd mm6,ebp
+	movd mm7,dword ptr [esi]
+	add  esi,4
+	psllq mm7,mm6
+	add  ebp,32
+	por mm0,mm7
+
+L_get_dist_code_mmx:
+	mov  ebx, [esp+12]
+	pand mm5,mm0
+	movd eax,mm5
+	movq mm5,mm2
+	mov  eax, [ebx+eax*4]
+
+L_dodist_mmx:
+
+	movzx  ecx,ah
+	mov  ebx,eax
+	shr  ebx,16
+	sub  ebp,ecx
+	movd mm1,ecx
+
+	test  al,16
+	jz L_test_for_second_level_dist_mmx
+	and  eax,15
+	jz L_check_dist_one_mmx
+
+L_add_bits_to_dist_mmx:
+	psrlq mm0,mm1
+	movd mm1,eax
+	movd ecx,mm0
+	sub  ebp,eax
+	and  ecx, [inflate_fast_mask+eax*4]
+	add  ebx,ecx
+
+L_check_window_mmx:
+	mov  [esp+44],esi
+	mov  eax,edi
+	sub  eax, [esp+40]
+
+	cmp  eax,ebx
+	jb L_clip_window_mmx
+
+	mov  ecx,edx
+	mov  esi,edi
+	sub  esi,ebx
+
+	sub  ecx,3
+	mov  al, [esi]
+	mov  [edi],al
+	mov  al, [esi+1]
+	mov  dl, [esi+2]
+	add  esi,3
+	mov  [edi+1],al
+	mov  [edi+2],dl
+	add  edi,3
+	rep movsb
+
+	mov  esi, [esp+44]
+	mov  ebx, [esp+8]
+	jmp  L_while_test_mmx
+
+ALIGN 4
+L_check_dist_one_mmx:
+	cmp  ebx,1
+	jne  L_check_window_mmx
+	cmp  [esp+40],edi
+	je   L_check_window_mmx
+
+	dec  edi
+	mov  ecx,edx
+	mov  al, [edi]
+	sub  ecx,3
+
+	mov  [edi+1],al
+	mov  [edi+2],al
+	mov  [edi+3],al
+	add  edi,4
+	rep stosb
+
+	mov  ebx, [esp+8]
+	jmp  L_while_test_mmx
+
+ALIGN 4
+L_test_for_second_level_length_mmx:
+	test  al,64
+	jnz L_test_for_end_of_block
+
+	and  eax,15
+	psrlq mm0,mm1
+	movd ecx,mm0
+	and  ecx, [inflate_fast_mask+eax*4]
+	add  ecx,edx
+	mov  eax, [ebx+ecx*4]
+	jmp L_dolen_mmx
+
+ALIGN 4
+L_test_for_second_level_dist_mmx:
+	test  al,64
+	jnz L_invalid_distance_code
+
+	and  eax,15
+	psrlq mm0,mm1
+	movd ecx,mm0
+	and  ecx, [inflate_fast_mask+eax*4]
+	mov  eax, [esp+12]
+	add  ecx,ebx
+	mov  eax, [eax+ecx*4]
+	jmp  L_dodist_mmx
+
+ALIGN 4
+L_clip_window_mmx:
+
+	mov  ecx,eax
+	mov  eax, [esp+52]
+	neg  ecx
+	mov  esi, [esp+56]
+
+	cmp  eax,ebx
+	jb  L_invalid_distance_too_far
+
+	add  ecx,ebx
+	cmp  dword ptr [esp+48],0
+	jne  L_wrap_around_window_mmx
+
+	sub  eax,ecx
+	add  esi,eax
+
+	cmp  edx,ecx
+	jbe  L_do_copy1_mmx
+
+	sub  edx,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,ebx
+	jmp  L_do_copy1_mmx
+
+	cmp  edx,ecx
+	jbe  L_do_copy1_mmx
+
+	sub  edx,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,ebx
+	jmp  L_do_copy1_mmx
+
+L_wrap_around_window_mmx:
+
+	mov  eax, [esp+48]
+	cmp  ecx,eax
+	jbe  L_contiguous_in_window_mmx
+
+	add  esi, [esp+52]
+	add  esi,eax
+	sub  esi,ecx
+	sub  ecx,eax
+
+
+	cmp  edx,ecx
+	jbe  L_do_copy1_mmx
+
+	sub  edx,ecx
+	rep movsb
+	mov  esi, [esp+56]
+	mov  ecx, [esp+48]
+	cmp  edx,ecx
+	jbe  L_do_copy1_mmx
+
+	sub  edx,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,ebx
+	jmp  L_do_copy1_mmx
+
+L_contiguous_in_window_mmx:
+
+	add  esi,eax
+	sub  esi,ecx
+
+
+	cmp  edx,ecx
+	jbe  L_do_copy1_mmx
+
+	sub  edx,ecx
+	rep movsb
+	mov  esi,edi
+	sub  esi,ebx
+
+L_do_copy1_mmx:
+
+
+	mov  ecx,edx
+	rep movsb
+
+	mov  esi, [esp+44]
+	mov  ebx, [esp+8]
+	jmp  L_while_test_mmx
+; 1174 "inffast.S"
+L_invalid_distance_code:
+
+
+
+
+
+	mov  ecx, invalid_distance_code_msg
+	mov  edx,INFLATE_MODE_BAD
+	jmp  L_update_stream_state
+
+L_test_for_end_of_block:
+
+
+
+
+
+	test  al,32
+	jz  L_invalid_literal_length_code
+
+	mov  ecx,0
+	mov  edx,INFLATE_MODE_TYPE
+	jmp  L_update_stream_state
+
+L_invalid_literal_length_code:
+
+
+
+
+
+	mov  ecx, invalid_literal_length_code_msg
+	mov  edx,INFLATE_MODE_BAD
+	jmp  L_update_stream_state
+
+L_invalid_distance_too_far:
+
+
+
+	mov  esi, [esp+44]
+	mov  ecx, invalid_distance_too_far_msg
+	mov  edx,INFLATE_MODE_BAD
+	jmp  L_update_stream_state
+
+L_update_stream_state:
+
+	mov  eax, [esp+88]
+	test  ecx,ecx
+	jz  L_skip_msg
+	mov  [eax+24],ecx
+L_skip_msg:
+	mov  eax, [eax+28]
+	mov  [eax+mode_state],edx
+	jmp  L_break_loop
+
+ALIGN 4
+L_break_loop:
+; 1243 "inffast.S"
+	cmp  dword ptr [inflate_fast_use_mmx],2
+	jne  L_update_next_in
+
+
+
+	mov  ebx,ebp
+
+L_update_next_in:
+; 1266 "inffast.S"
+	mov  eax, [esp+88]
+	mov  ecx,ebx
+	mov  edx, [eax+28]
+	shr  ecx,3
+	sub  esi,ecx
+	shl  ecx,3
+	sub  ebx,ecx
+	mov  [eax+12],edi
+	mov  [edx+bits_state],ebx
+	mov  ecx,ebx
+
+	lea  ebx, [esp+28]
+	cmp  [esp+20],ebx
+	jne  L_buf_not_used
+
+	sub  esi,ebx
+	mov  ebx, [eax+0]
+	mov  [esp+20],ebx
+	add  esi,ebx
+	mov  ebx, [eax+4]
+	sub  ebx,11
+	add  [esp+20],ebx
+
+L_buf_not_used:
+	mov  [eax+0],esi
+
+	mov  ebx,1
+	shl  ebx,cl
+	dec  ebx
+
+
+
+
+
+	cmp  dword ptr [inflate_fast_use_mmx],2
+	jne  L_update_hold
+
+
+
+	psrlq mm0,mm1
+	movd ebp,mm0
+
+	emms
+
+L_update_hold:
+
+
+
+	and  ebp,ebx
+	mov  [edx+hold_state],ebp
+
+
+
+
+	mov  ebx, [esp+20]
+	cmp  ebx,esi
+	jbe  L_last_is_smaller
+
+	sub  ebx,esi
+	add  ebx,11
+	mov  [eax+4],ebx
+	jmp  L_fixup_out
+L_last_is_smaller:
+	sub  esi,ebx
+	neg  esi
+	add  esi,11
+	mov  [eax+4],esi
+
+
+
+
+L_fixup_out:
+
+	mov  ebx, [esp+16]
+	cmp  ebx,edi
+	jbe  L_end_is_smaller
+
+	sub  ebx,edi
+	add  ebx,257
+	mov  [eax+16],ebx
+	jmp  L_done
+L_end_is_smaller:
+	sub  edi,ebx
+	neg  edi
+	add  edi,257
+	mov  [eax+16],edi
+
+
+
+
+
+L_done:
+	add  esp,64
+	popfd
+	pop  ebx
+	pop  ebp
+	pop  esi
+	pop  edi
+	ret
+_inflate_fast endp
+
+_TEXT	ends
+end
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/match686.asm b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/match686.asm
new file mode 100644
index 000000000..69e0eed01
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/match686.asm
@@ -0,0 +1,479 @@
+; match686.asm -- Asm portion of the optimized longest_match for 32 bits x86
+; Copyright (C) 1995-1996 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
+; File written by Gilles Vollant, by converting match686.S from Brian Raiter
+; for MASM. This is as assembly version of longest_match
+;  from Jean-loup Gailly in deflate.c
+;
+;         http://www.zlib.net
+;         http://www.winimage.com/zLibDll
+;         http://www.muppetlabs.com/~breadbox/software/assembly.html
+;
+; For Visual C++ 4.x and higher and ML 6.x and higher
+;   ml.exe is distributed in
+;  http://www.microsoft.com/downloads/details.aspx?FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
+;
+; this file contain two implementation of longest_match
+;
+;  this longest_match was written by Brian raiter (1998), optimized for Pentium Pro
+;   (and the faster known version of match_init on modern Core 2 Duo and AMD Phenom)
+;
+;  for using an assembly version of longest_match, you need define ASMV in project
+;
+;    compile the asm file running
+;           ml /coff /Zi /c /Flmatch686.lst match686.asm
+;    and do not include match686.obj in your project
+;
+; note: contrib of zLib 1.2.3 and earlier contained both a deprecated version for
+;  Pentium (prior Pentium Pro) and this version for Pentium Pro and modern processor
+;  with autoselect (with cpu detection code)
+;  if you want support the old pentium optimization, you can still use these version
+;
+; this file is not optimized for old pentium, but it compatible with all x86 32 bits
+; processor (starting 80386)
+;
+;
+; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2
+
+;uInt longest_match(s, cur_match)
+;    deflate_state *s;
+;    IPos cur_match;                             /* current match */
+
+    NbStack         equ     76
+    cur_match       equ     dword ptr[esp+NbStack-0]
+    str_s           equ     dword ptr[esp+NbStack-4]
+; 5 dword on top (ret,ebp,esi,edi,ebx)
+    adrret          equ     dword ptr[esp+NbStack-8]
+    pushebp         equ     dword ptr[esp+NbStack-12]
+    pushedi         equ     dword ptr[esp+NbStack-16]
+    pushesi         equ     dword ptr[esp+NbStack-20]
+    pushebx         equ     dword ptr[esp+NbStack-24]
+
+    chain_length    equ     dword ptr [esp+NbStack-28]
+    limit           equ     dword ptr [esp+NbStack-32]
+    best_len        equ     dword ptr [esp+NbStack-36]
+    window          equ     dword ptr [esp+NbStack-40]
+    prev            equ     dword ptr [esp+NbStack-44]
+    scan_start      equ      word ptr [esp+NbStack-48]
+    wmask           equ     dword ptr [esp+NbStack-52]
+    match_start_ptr equ     dword ptr [esp+NbStack-56]
+    nice_match      equ     dword ptr [esp+NbStack-60]
+    scan            equ     dword ptr [esp+NbStack-64]
+
+    windowlen       equ     dword ptr [esp+NbStack-68]
+    match_start     equ     dword ptr [esp+NbStack-72]
+    strend          equ     dword ptr [esp+NbStack-76]
+    NbStackAdd      equ     (NbStack-24)
+
+    .386p
+
+    name    gvmatch
+    .MODEL  FLAT
+
+
+
+;  all the +zlib1222add offsets are due to the addition of fields
+;  in zlib in the deflate_state structure since the asm code was first written
+;  (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
+;  (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
+;  if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
+
+    zlib1222add         equ     8
+
+;  Note : these value are good with a 8 bytes boundary pack structure
+    dep_chain_length    equ     74h+zlib1222add
+    dep_window          equ     30h+zlib1222add
+    dep_strstart        equ     64h+zlib1222add
+    dep_prev_length     equ     70h+zlib1222add
+    dep_nice_match      equ     88h+zlib1222add
+    dep_w_size          equ     24h+zlib1222add
+    dep_prev            equ     38h+zlib1222add
+    dep_w_mask          equ     2ch+zlib1222add
+    dep_good_match      equ     84h+zlib1222add
+    dep_match_start     equ     68h+zlib1222add
+    dep_lookahead       equ     6ch+zlib1222add
+
+
+_TEXT                   segment
+
+IFDEF NOUNDERLINE
+            public  longest_match
+            public  match_init
+ELSE
+            public  _longest_match
+            public  _match_init
+ENDIF
+
+    MAX_MATCH           equ     258
+    MIN_MATCH           equ     3
+    MIN_LOOKAHEAD       equ     (MAX_MATCH+MIN_MATCH+1)
+
+
+
+MAX_MATCH       equ     258
+MIN_MATCH       equ     3
+MIN_LOOKAHEAD   equ     (MAX_MATCH + MIN_MATCH + 1)
+MAX_MATCH_8_     equ     ((MAX_MATCH + 7) AND 0FFF0h)
+
+
+;;; stack frame offsets
+
+chainlenwmask   equ  esp + 0    ; high word: current chain len
+                    ; low word: s->wmask
+window      equ  esp + 4    ; local copy of s->window
+windowbestlen   equ  esp + 8    ; s->window + bestlen
+scanstart   equ  esp + 16   ; first two bytes of string
+scanend     equ  esp + 12   ; last two bytes of string
+scanalign   equ  esp + 20   ; dword-misalignment of string
+nicematch   equ  esp + 24   ; a good enough match size
+bestlen     equ  esp + 28   ; size of best match so far
+scan        equ  esp + 32   ; ptr to string wanting match
+
+LocalVarsSize   equ 36
+;   saved ebx   byte esp + 36
+;   saved edi   byte esp + 40
+;   saved esi   byte esp + 44
+;   saved ebp   byte esp + 48
+;   return address  byte esp + 52
+deflatestate    equ  esp + 56   ; the function arguments
+curmatch    equ  esp + 60
+
+;;; Offsets for fields in the deflate_state structure. These numbers
+;;; are calculated from the definition of deflate_state, with the
+;;; assumption that the compiler will dword-align the fields. (Thus,
+;;; changing the definition of deflate_state could easily cause this
+;;; program to crash horribly, without so much as a warning at
+;;; compile time. Sigh.)
+
+dsWSize     equ 36+zlib1222add
+dsWMask     equ 44+zlib1222add
+dsWindow    equ 48+zlib1222add
+dsPrev      equ 56+zlib1222add
+dsMatchLen  equ 88+zlib1222add
+dsPrevMatch equ 92+zlib1222add
+dsStrStart  equ 100+zlib1222add
+dsMatchStart    equ 104+zlib1222add
+dsLookahead equ 108+zlib1222add
+dsPrevLen   equ 112+zlib1222add
+dsMaxChainLen   equ 116+zlib1222add
+dsGoodMatch equ 132+zlib1222add
+dsNiceMatch equ 136+zlib1222add
+
+
+;;; match686.asm -- Pentium-Pro-optimized version of longest_match()
+;;; Written for zlib 1.1.2
+;;; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
+;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html
+;;;
+;;
+;;  This software is provided 'as-is', without any express or implied
+;;  warranty.  In no event will the authors be held liable for any damages
+;;  arising from the use of this software.
+;;
+;;  Permission is granted to anyone to use this software for any purpose,
+;;  including commercial applications, and to alter it and redistribute it
+;;  freely, subject to the following restrictions:
+;;
+;;  1. The origin of this software must not be misrepresented; you must not
+;;     claim that you wrote the original software. If you use this software
+;;     in a product, an acknowledgment in the product documentation would be
+;;     appreciated but is not required.
+;;  2. Altered source versions must be plainly marked as such, and must not be
+;;     misrepresented as being the original software
+;;  3. This notice may not be removed or altered from any source distribution.
+;;
+
+;GLOBAL _longest_match, _match_init
+
+
+;SECTION    .text
+
+;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
+
+;_longest_match:
+    IFDEF NOUNDERLINE
+    longest_match       proc near
+    ELSE
+    _longest_match      proc near
+    ENDIF
+.FPO (9, 4, 0, 0, 1, 0)
+
+;;; Save registers that the compiler may be using, and adjust esp to
+;;; make room for our stack frame.
+
+        push    ebp
+        push    edi
+        push    esi
+        push    ebx
+        sub esp, LocalVarsSize
+
+;;; Retrieve the function arguments. ecx will hold cur_match
+;;; throughout the entire function. edx will hold the pointer to the
+;;; deflate_state structure during the function's setup (before
+;;; entering the main loop.
+
+        mov edx, [deflatestate]
+        mov ecx, [curmatch]
+
+;;; uInt wmask = s->w_mask;
+;;; unsigned chain_length = s->max_chain_length;
+;;; if (s->prev_length >= s->good_match) {
+;;;     chain_length >>= 2;
+;;; }
+
+        mov eax, [edx + dsPrevLen]
+        mov ebx, [edx + dsGoodMatch]
+        cmp eax, ebx
+        mov eax, [edx + dsWMask]
+        mov ebx, [edx + dsMaxChainLen]
+        jl  LastMatchGood
+        shr ebx, 2
+LastMatchGood:
+
+;;; chainlen is decremented once beforehand so that the function can
+;;; use the sign flag instead of the zero flag for the exit test.
+;;; It is then shifted into the high word, to make room for the wmask
+;;; value, which it will always accompany.
+
+        dec ebx
+        shl ebx, 16
+        or  ebx, eax
+        mov [chainlenwmask], ebx
+
+;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+
+        mov eax, [edx + dsNiceMatch]
+        mov ebx, [edx + dsLookahead]
+        cmp ebx, eax
+        jl  LookaheadLess
+        mov ebx, eax
+LookaheadLess:  mov [nicematch], ebx
+
+;;; register Bytef *scan = s->window + s->strstart;
+
+        mov esi, [edx + dsWindow]
+        mov [window], esi
+        mov ebp, [edx + dsStrStart]
+        lea edi, [esi + ebp]
+        mov [scan], edi
+
+;;; Determine how many bytes the scan ptr is off from being
+;;; dword-aligned.
+
+        mov eax, edi
+        neg eax
+        and eax, 3
+        mov [scanalign], eax
+
+;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+;;;     s->strstart - (IPos)MAX_DIST(s) : NIL;
+
+        mov eax, [edx + dsWSize]
+        sub eax, MIN_LOOKAHEAD
+        sub ebp, eax
+        jg  LimitPositive
+        xor ebp, ebp
+LimitPositive:
+
+;;; int best_len = s->prev_length;
+
+        mov eax, [edx + dsPrevLen]
+        mov [bestlen], eax
+
+;;; Store the sum of s->window + best_len in esi locally, and in esi.
+
+        add esi, eax
+        mov [windowbestlen], esi
+
+;;; register ush scan_start = *(ushf*)scan;
+;;; register ush scan_end   = *(ushf*)(scan+best_len-1);
+;;; Posf *prev = s->prev;
+
+        movzx   ebx, word ptr [edi]
+        mov [scanstart], ebx
+        movzx   ebx, word ptr [edi + eax - 1]
+        mov [scanend], ebx
+        mov edi, [edx + dsPrev]
+
+;;; Jump into the main loop.
+
+        mov edx, [chainlenwmask]
+        jmp short LoopEntry
+
+align 4
+
+;;; do {
+;;;     match = s->window + cur_match;
+;;;     if (*(ushf*)(match+best_len-1) != scan_end ||
+;;;         *(ushf*)match != scan_start) continue;
+;;;     [...]
+;;; } while ((cur_match = prev[cur_match & wmask]) > limit
+;;;          && --chain_length != 0);
+;;;
+;;; Here is the inner loop of the function. The function will spend the
+;;; majority of its time in this loop, and majority of that time will
+;;; be spent in the first ten instructions.
+;;;
+;;; Within this loop:
+;;; ebx = scanend
+;;; ecx = curmatch
+;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
+;;; esi = windowbestlen - i.e., (window + bestlen)
+;;; edi = prev
+;;; ebp = limit
+
+LookupLoop:
+        and ecx, edx
+        movzx   ecx, word ptr [edi + ecx*2]
+        cmp ecx, ebp
+        jbe LeaveNow
+        sub edx, 00010000h
+        js  LeaveNow
+LoopEntry:  movzx   eax, word ptr [esi + ecx - 1]
+        cmp eax, ebx
+        jnz LookupLoop
+        mov eax, [window]
+        movzx   eax, word ptr [eax + ecx]
+        cmp eax, [scanstart]
+        jnz LookupLoop
+
+;;; Store the current value of chainlen.
+
+        mov [chainlenwmask], edx
+
+;;; Point edi to the string under scrutiny, and esi to the string we
+;;; are hoping to match it up with. In actuality, esi and edi are
+;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
+;;; initialized to -(MAX_MATCH_8 - scanalign).
+
+        mov esi, [window]
+        mov edi, [scan]
+        add esi, ecx
+        mov eax, [scanalign]
+        mov edx, 0fffffef8h; -(MAX_MATCH_8)
+        lea edi, [edi + eax + 0108h] ;MAX_MATCH_8]
+        lea esi, [esi + eax + 0108h] ;MAX_MATCH_8]
+
+;;; Test the strings for equality, 8 bytes at a time. At the end,
+;;; adjust edx so that it is offset to the exact byte that mismatched.
+;;;
+;;; We already know at this point that the first three bytes of the
+;;; strings match each other, and they can be safely passed over before
+;;; starting the compare loop. So what this code does is skip over 0-3
+;;; bytes, as much as necessary in order to dword-align the edi
+;;; pointer. (esi will still be misaligned three times out of four.)
+;;;
+;;; It should be confessed that this loop usually does not represent
+;;; much of the total running time. Replacing it with a more
+;;; straightforward "rep cmpsb" would not drastically degrade
+;;; performance.
+
+LoopCmps:
+        mov eax, [esi + edx]
+        xor eax, [edi + edx]
+        jnz LeaveLoopCmps
+        mov eax, [esi + edx + 4]
+        xor eax, [edi + edx + 4]
+        jnz LeaveLoopCmps4
+        add edx, 8
+        jnz LoopCmps
+        jmp short LenMaximum
+LeaveLoopCmps4: add edx, 4
+LeaveLoopCmps:  test    eax, 0000FFFFh
+        jnz LenLower
+        add edx,  2
+        shr eax, 16
+LenLower:   sub al, 1
+        adc edx, 0
+
+;;; Calculate the length of the match. If it is longer than MAX_MATCH,
+;;; then automatically accept it as the best possible match and leave.
+
+        lea eax, [edi + edx]
+        mov edi, [scan]
+        sub eax, edi
+        cmp eax, MAX_MATCH
+        jge LenMaximum
+
+;;; If the length of the match is not longer than the best match we
+;;; have so far, then forget it and return to the lookup loop.
+
+        mov edx, [deflatestate]
+        mov ebx, [bestlen]
+        cmp eax, ebx
+        jg  LongerMatch
+        mov esi, [windowbestlen]
+        mov edi, [edx + dsPrev]
+        mov ebx, [scanend]
+        mov edx, [chainlenwmask]
+        jmp LookupLoop
+
+;;;         s->match_start = cur_match;
+;;;         best_len = len;
+;;;         if (len >= nice_match) break;
+;;;         scan_end = *(ushf*)(scan+best_len-1);
+
+LongerMatch:    mov ebx, [nicematch]
+        mov [bestlen], eax
+        mov [edx + dsMatchStart], ecx
+        cmp eax, ebx
+        jge LeaveNow
+        mov esi, [window]
+        add esi, eax
+        mov [windowbestlen], esi
+        movzx   ebx, word ptr [edi + eax - 1]
+        mov edi, [edx + dsPrev]
+        mov [scanend], ebx
+        mov edx, [chainlenwmask]
+        jmp LookupLoop
+
+;;; Accept the current string, with the maximum possible length.
+
+LenMaximum: mov edx, [deflatestate]
+        mov dword ptr [bestlen], MAX_MATCH
+        mov [edx + dsMatchStart], ecx
+
+;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+;;; return s->lookahead;
+
+LeaveNow:
+        mov edx, [deflatestate]
+        mov ebx, [bestlen]
+        mov eax, [edx + dsLookahead]
+        cmp ebx, eax
+        jg  LookaheadRet
+        mov eax, ebx
+LookaheadRet:
+
+;;; Restore the stack and return from whence we came.
+
+        add esp, LocalVarsSize
+        pop ebx
+        pop esi
+        pop edi
+        pop ebp
+
+        ret
+; please don't remove this string !
+; Your can freely use match686 in any free or commercial app if you don't remove the string in the binary!
+    db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah
+
+
+    IFDEF NOUNDERLINE
+    longest_match       endp
+    ELSE
+    _longest_match      endp
+    ENDIF
+
+    IFDEF NOUNDERLINE
+    match_init      proc near
+                    ret
+    match_init      endp
+    ELSE
+    _match_init     proc near
+                    ret
+    _match_init     endp
+    ENDIF
+
+
+_TEXT   ends
+end
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/readme.txt
new file mode 100644
index 000000000..3f8888679
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/masmx86/readme.txt
@@ -0,0 +1,27 @@
+
+Summary
+-------
+This directory contains ASM implementations of the functions
+longest_match() and inflate_fast().
+
+
+Use instructions
+----------------
+Assemble using MASM, and copy the object files into the zlib source
+directory, then run the appropriate makefile, as suggested below.  You can
+donwload MASM from here:
+
+    http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
+
+You can also get objects files here:
+
+    http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
+
+Build instructions
+------------------
+* With Microsoft C and MASM:
+nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj"
+
+* With Borland C and TASM:
+make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj" OBJPA="+match686c.obj+match686.obj+inffas32.obj"
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/Makefile b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/Makefile
new file mode 100644
index 000000000..84eaad20d
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/Makefile
@@ -0,0 +1,25 @@
+CC=cc
+CFLAGS=-O -I../..
+
+UNZ_OBJS = miniunz.o unzip.o ioapi.o ../../libz.a
+ZIP_OBJS = minizip.o zip.o   ioapi.o ../../libz.a
+
+.c.o:
+	$(CC) -c $(CFLAGS) $*.c
+
+all: miniunz minizip
+
+miniunz:  $(UNZ_OBJS)
+	$(CC) $(CFLAGS) -o $@ $(UNZ_OBJS)
+
+minizip:  $(ZIP_OBJS)
+	$(CC) $(CFLAGS) -o $@ $(ZIP_OBJS)
+
+test:	miniunz minizip
+	./minizip test readme.txt
+	./miniunz -l test.zip
+	mv readme.txt readme.old
+	./miniunz test.zip
+
+clean:
+	/bin/rm -f *.o *~ minizip miniunz
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/Makefile.am b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/Makefile.am
new file mode 100644
index 000000000..d343011eb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/Makefile.am
@@ -0,0 +1,45 @@
+lib_LTLIBRARIES = libminizip.la
+
+if COND_DEMOS
+bin_PROGRAMS = miniunzip minizip
+endif
+
+zlib_top_srcdir = $(top_srcdir)/../..
+zlib_top_builddir = $(top_builddir)/../..
+
+AM_CPPFLAGS = -I$(zlib_top_srcdir)
+AM_LDFLAGS = -L$(zlib_top_builddir)
+
+if WIN32
+iowin32_src = iowin32.c
+iowin32_h = iowin32.h
+endif
+
+libminizip_la_SOURCES = \
+	ioapi.c \
+	mztools.c \
+	unzip.c \
+	zip.c \
+	${iowin32_src}
+
+libminizip_la_LDFLAGS = $(AM_LDFLAGS) -version-info 1:0:0 -lz
+
+minizip_includedir = $(includedir)/minizip
+minizip_include_HEADERS = \
+	crypt.h \
+	ioapi.h \
+	mztools.h \
+	unzip.h \
+	zip.h \
+	${iowin32_h}
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = minizip.pc
+
+EXTRA_PROGRAMS = miniunzip minizip
+
+miniunzip_SOURCES = miniunz.c
+miniunzip_LDADD = libminizip.la
+
+minizip_SOURCES = minizip.c
+minizip_LDADD = libminizip.la -lz
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/MiniZip64_Changes.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/MiniZip64_Changes.txt
new file mode 100644
index 000000000..13a1bd91a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/MiniZip64_Changes.txt
@@ -0,0 +1,6 @@
+
+MiniZip 1.1 was derrived from MiniZip at version 1.01f
+
+Change in 1.0 (Okt 2009)
+ - **TODO - Add history**
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/MiniZip64_info.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/MiniZip64_info.txt
new file mode 100644
index 000000000..57d715242
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/MiniZip64_info.txt
@@ -0,0 +1,74 @@
+MiniZip - Copyright (c) 1998-2010 - by Gilles Vollant - version 1.1 64 bits from Mathias Svensson
+
+Introduction
+---------------------
+MiniZip 1.1 is built from MiniZip 1.0 by Gilles Vollant ( http://www.winimage.com/zLibDll/minizip.html )
+
+When adding ZIP64 support into minizip it would result into risk of breaking compatibility with minizip 1.0.
+All possible work was done for compatibility.
+
+
+Background
+---------------------
+When adding ZIP64 support Mathias Svensson found that Even Rouault have added ZIP64 
+support for unzip.c into minizip for a open source project called gdal ( http://www.gdal.org/ )
+
+That was used as a starting point. And after that ZIP64 support was added to zip.c
+some refactoring and code cleanup was also done.
+
+
+Changed from MiniZip 1.0 to MiniZip 1.1
+---------------------------------------
+* Added ZIP64 support for unzip ( by Even Rouault )
+* Added ZIP64 support for zip ( by Mathias Svensson )
+* Reverted some changed that Even Rouault did.
+* Bunch of patches received from Gulles Vollant that he received for MiniZip from various users.
+* Added unzip patch for BZIP Compression method (patch create by Daniel Borca)
+* Added BZIP Compress method for zip
+* Did some refactoring and code cleanup
+
+
+Credits
+
+ Gilles Vollant    - Original MiniZip author
+ Even Rouault      - ZIP64 unzip Support
+ Daniel Borca      - BZip Compression method support in unzip
+ Mathias Svensson  - ZIP64 zip support
+ Mathias Svensson  - BZip Compression method support in zip
+
+ Resources
+
+ ZipLayout   http://result42.com/projects/ZipFileLayout
+             Command line tool for Windows that shows the layout and information of the headers in a zip archive.
+             Used when debugging and validating the creation of zip files using MiniZip64
+
+
+ ZIP App Note  http://www.pkware.com/documents/casestudies/APPNOTE.TXT
+               Zip File specification
+
+
+Notes.
+ * To be able to use BZip compression method in zip64.c or unzip64.c the BZIP2 lib is needed and HAVE_BZIP2 need to be defined.
+
+License
+----------------------------------------------------------
+   Condition of use and distribution are the same than zlib :
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+----------------------------------------------------------
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/configure.ac b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/configure.ac
new file mode 100644
index 000000000..5b1197097
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/configure.ac
@@ -0,0 +1,32 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_INIT([minizip], [1.2.11], [bugzilla.redhat.com])
+AC_CONFIG_SRCDIR([minizip.c])
+AM_INIT_AUTOMAKE([foreign])
+LT_INIT
+
+AC_MSG_CHECKING([whether to build example programs])
+AC_ARG_ENABLE([demos], AC_HELP_STRING([--enable-demos], [build example programs]))
+AM_CONDITIONAL([COND_DEMOS], [test "$enable_demos" = yes])
+if test "$enable_demos" = yes
+then
+	AC_MSG_RESULT([yes])
+else
+	AC_MSG_RESULT([no])
+fi
+
+case "${host}" in
+	*-mingw* | mingw*)
+		WIN32="yes"
+		;;
+	*)
+		;;
+esac
+AM_CONDITIONAL([WIN32], [test "${WIN32}" = "yes"])
+
+
+AC_SUBST([HAVE_UNISTD_H], [0])
+AC_CHECK_HEADER([unistd.h], [HAVE_UNISTD_H=1], [])
+AC_CONFIG_FILES([Makefile minizip.pc])
+AC_OUTPUT
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/crypt.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/crypt.h
new file mode 100644
index 000000000..1e9e8200b
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/crypt.h
@@ -0,0 +1,131 @@
+/* crypt.h -- base code for crypt/uncrypt ZIPfile
+
+
+   Version 1.01e, February 12th, 2005
+
+   Copyright (C) 1998-2005 Gilles Vollant
+
+   This code is a modified version of crypting code in Infozip distribution
+
+   The encryption/decryption parts of this source code (as opposed to the
+   non-echoing password parts) were originally written in Europe.  The
+   whole source package can be freely distributed, including from the USA.
+   (Prior to January 2000, re-export from the US was a violation of US law.)
+
+   This encryption code is a direct transcription of the algorithm from
+   Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
+   file (appnote.txt) is distributed with the PKZIP program (even in the
+   version without encryption capabilities).
+
+   If you don't need crypting in your application, just define symbols
+   NOCRYPT and NOUNCRYPT.
+
+   This code support the "Traditional PKWARE Encryption".
+
+   The new AES encryption added on Zip format by Winzip (see the page
+   http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong
+   Encryption is not supported.
+*/
+
+#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
+
+/***********************************************************************
+ * Return the next byte in the pseudo-random sequence
+ */
+static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
+{
+    unsigned temp;  /* POTENTIAL BUG:  temp*(temp^1) may overflow in an
+                     * unpredictable manner on 16-bit systems; not a problem
+                     * with any known compiler so far, though */
+
+    temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
+    return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
+}
+
+/***********************************************************************
+ * Update the encryption keys with the next byte of plain text
+ */
+static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c)
+{
+    (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
+    (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
+    (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
+    {
+      register int keyshift = (int)((*(pkeys+1)) >> 24);
+      (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
+    }
+    return c;
+}
+
+
+/***********************************************************************
+ * Initialize the encryption keys and the random header according to
+ * the given password.
+ */
+static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab)
+{
+    *(pkeys+0) = 305419896L;
+    *(pkeys+1) = 591751049L;
+    *(pkeys+2) = 878082192L;
+    while (*passwd != '\0') {
+        update_keys(pkeys,pcrc_32_tab,(int)*passwd);
+        passwd++;
+    }
+}
+
+#define zdecode(pkeys,pcrc_32_tab,c) \
+    (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
+
+#define zencode(pkeys,pcrc_32_tab,c,t) \
+    (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
+
+#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
+
+#define RAND_HEAD_LEN  12
+   /* "last resort" source for second part of crypt seed pattern */
+#  ifndef ZCR_SEED2
+#    define ZCR_SEED2 3141592654UL     /* use PI as default pattern */
+#  endif
+
+static int crypthead(const char* passwd,      /* password string */
+                     unsigned char* buf,      /* where to write header */
+                     int bufSize,
+                     unsigned long* pkeys,
+                     const z_crc_t* pcrc_32_tab,
+                     unsigned long crcForCrypting)
+{
+    int n;                       /* index in random header */
+    int t;                       /* temporary */
+    int c;                       /* random byte */
+    unsigned char header[RAND_HEAD_LEN-2]; /* random header */
+    static unsigned calls = 0;   /* ensure different random header each time */
+
+    if (bufSize<RAND_HEAD_LEN)
+      return 0;
+
+    /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
+     * output of rand() to get less predictability, since rand() is
+     * often poorly implemented.
+     */
+    if (++calls == 1)
+    {
+        srand((unsigned)(time(NULL) ^ ZCR_SEED2));
+    }
+    init_keys(passwd, pkeys, pcrc_32_tab);
+    for (n = 0; n < RAND_HEAD_LEN-2; n++)
+    {
+        c = (rand() >> 7) & 0xff;
+        header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
+    }
+    /* Encrypt random header (last two bytes is high word of crc) */
+    init_keys(passwd, pkeys, pcrc_32_tab);
+    for (n = 0; n < RAND_HEAD_LEN-2; n++)
+    {
+        buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
+    }
+    buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
+    buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
+    return n;
+}
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/ioapi.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/ioapi.c
new file mode 100644
index 000000000..7f5c191b2
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/ioapi.c
@@ -0,0 +1,247 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+*/
+
+#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
+        #define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#if defined(__APPLE__) || defined(IOAPI_NO_64)
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+#include "ioapi.h"
+
+voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
+{
+    if (pfilefunc->zfile_func64.zopen64_file != NULL)
+        return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
+    else
+    {
+        return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
+    }
+}
+
+long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
+{
+    if (pfilefunc->zfile_func64.zseek64_file != NULL)
+        return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+    else
+    {
+        uLong offsetTruncated = (uLong)offset;
+        if (offsetTruncated != offset)
+            return -1;
+        else
+            return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
+    }
+}
+
+ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
+{
+    if (pfilefunc->zfile_func64.zseek64_file != NULL)
+        return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
+    else
+    {
+        uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
+        if ((tell_uLong) == MAXU32)
+            return (ZPOS64_T)-1;
+        else
+            return tell_uLong;
+    }
+}
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
+{
+    p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+    p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+    p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+    p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+    p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+    p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+    p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+    p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+    p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+    p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+    p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+    p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
+
+
+
+static voidpf  ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
+static uLong   ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+static uLong   ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
+static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
+static long    ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+static int     ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
+static int     ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
+
+static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
+{
+    FILE* file = NULL;
+    const char* mode_fopen = NULL;
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+        mode_fopen = "rb";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+        mode_fopen = "r+b";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+        mode_fopen = "wb";
+
+    if ((filename!=NULL) && (mode_fopen != NULL))
+        file = fopen(filename, mode_fopen);
+    return file;
+}
+
+static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
+{
+    FILE* file = NULL;
+    const char* mode_fopen = NULL;
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+        mode_fopen = "rb";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+        mode_fopen = "r+b";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+        mode_fopen = "wb";
+
+    if ((filename!=NULL) && (mode_fopen != NULL))
+        file = FOPEN_FUNC((const char*)filename, mode_fopen);
+    return file;
+}
+
+
+static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
+{
+    uLong ret;
+    ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
+    return ret;
+}
+
+static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
+{
+    uLong ret;
+    ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
+    return ret;
+}
+
+static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
+{
+    long ret;
+    ret = ftell((FILE *)stream);
+    return ret;
+}
+
+
+static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
+{
+    ZPOS64_T ret;
+    ret = FTELLO_FUNC((FILE *)stream);
+    return ret;
+}
+
+static long ZCALLBACK fseek_file_func (voidpf  opaque, voidpf stream, uLong offset, int origin)
+{
+    int fseek_origin=0;
+    long ret;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        fseek_origin = SEEK_CUR;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        fseek_origin = SEEK_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        fseek_origin = SEEK_SET;
+        break;
+    default: return -1;
+    }
+    ret = 0;
+    if (fseek((FILE *)stream, offset, fseek_origin) != 0)
+        ret = -1;
+    return ret;
+}
+
+static long ZCALLBACK fseek64_file_func (voidpf  opaque, voidpf stream, ZPOS64_T offset, int origin)
+{
+    int fseek_origin=0;
+    long ret;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        fseek_origin = SEEK_CUR;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        fseek_origin = SEEK_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        fseek_origin = SEEK_SET;
+        break;
+    default: return -1;
+    }
+    ret = 0;
+
+    if(FSEEKO_FUNC((FILE *)stream, offset, fseek_origin) != 0)
+                        ret = -1;
+
+    return ret;
+}
+
+
+static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
+{
+    int ret;
+    ret = fclose((FILE *)stream);
+    return ret;
+}
+
+static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
+{
+    int ret;
+    ret = ferror((FILE *)stream);
+    return ret;
+}
+
+void fill_fopen_filefunc (pzlib_filefunc_def)
+  zlib_filefunc_def* pzlib_filefunc_def;
+{
+    pzlib_filefunc_def->zopen_file = fopen_file_func;
+    pzlib_filefunc_def->zread_file = fread_file_func;
+    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+    pzlib_filefunc_def->ztell_file = ftell_file_func;
+    pzlib_filefunc_def->zseek_file = fseek_file_func;
+    pzlib_filefunc_def->zclose_file = fclose_file_func;
+    pzlib_filefunc_def->zerror_file = ferror_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_fopen64_filefunc (zlib_filefunc64_def*  pzlib_filefunc_def)
+{
+    pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+    pzlib_filefunc_def->zread_file = fread_file_func;
+    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+    pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+    pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+    pzlib_filefunc_def->zclose_file = fclose_file_func;
+    pzlib_filefunc_def->zerror_file = ferror_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/ioapi.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/ioapi.h
new file mode 100644
index 000000000..8dcbdb06e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/ioapi.h
@@ -0,0 +1,208 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         Changes
+
+    Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this)
+    Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux.
+               More if/def section may be needed to support other platforms
+    Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows.
+                          (but you should use iowin32.c for windows instead)
+
+*/
+
+#ifndef _ZLIBIOAPI64_H
+#define _ZLIBIOAPI64_H
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+
+  // Linux needs this to support file operation on files larger then 4+GB
+  // But might need better if/def to select just the platforms that needs them.
+
+        #ifndef __USE_FILE_OFFSET64
+                #define __USE_FILE_OFFSET64
+        #endif
+        #ifndef __USE_LARGEFILE64
+                #define __USE_LARGEFILE64
+        #endif
+        #ifndef _LARGEFILE64_SOURCE
+                #define _LARGEFILE64_SOURCE
+        #endif
+        #ifndef _FILE_OFFSET_BIT
+                #define _FILE_OFFSET_BIT 64
+        #endif
+
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "zlib.h"
+
+#if defined(USE_FILE32API)
+#define fopen64 fopen
+#define ftello64 ftell
+#define fseeko64 fseek
+#else
+#ifdef __FreeBSD__
+#define fopen64 fopen
+#define ftello64 ftello
+#define fseeko64 fseeko
+#endif
+#ifdef _MSC_VER
+ #define fopen64 fopen
+ #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
+  #define ftello64 _ftelli64
+  #define fseeko64 _fseeki64
+ #else // old MSC
+  #define ftello64 ftell
+  #define fseeko64 fseek
+ #endif
+#endif
+#endif
+
+/*
+#ifndef ZPOS64_T
+  #ifdef _WIN32
+                #define ZPOS64_T fpos_t
+  #else
+    #include <stdint.h>
+    #define ZPOS64_T uint64_t
+  #endif
+#endif
+*/
+
+#ifdef HAVE_MINIZIP64_CONF_H
+#include "mz64conf.h"
+#endif
+
+/* a type choosen by DEFINE */
+#ifdef HAVE_64BIT_INT_CUSTOM
+typedef  64BIT_INT_CUSTOM_TYPE ZPOS64_T;
+#else
+#ifdef HAS_STDINT_H
+#include "stdint.h"
+typedef uint64_t ZPOS64_T;
+#else
+
+/* Maximum unsigned 32-bit value used as placeholder for zip64 */
+#define MAXU32 0xffffffff
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+typedef unsigned __int64 ZPOS64_T;
+#else
+typedef unsigned long long int ZPOS64_T;
+#endif
+#endif
+#endif
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#define ZLIB_FILEFUNC_SEEK_CUR (1)
+#define ZLIB_FILEFUNC_SEEK_END (2)
+#define ZLIB_FILEFUNC_SEEK_SET (0)
+
+#define ZLIB_FILEFUNC_MODE_READ      (1)
+#define ZLIB_FILEFUNC_MODE_WRITE     (2)
+#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
+
+#define ZLIB_FILEFUNC_MODE_EXISTING (4)
+#define ZLIB_FILEFUNC_MODE_CREATE   (8)
+
+
+#ifndef ZCALLBACK
+ #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
+   #define ZCALLBACK CALLBACK
+ #else
+   #define ZCALLBACK
+ #endif
+#endif
+
+
+
+
+typedef voidpf   (ZCALLBACK *open_file_func)      OF((voidpf opaque, const char* filename, int mode));
+typedef uLong    (ZCALLBACK *read_file_func)      OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+typedef uLong    (ZCALLBACK *write_file_func)     OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
+typedef int      (ZCALLBACK *close_file_func)     OF((voidpf opaque, voidpf stream));
+typedef int      (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
+
+typedef long     (ZCALLBACK *tell_file_func)      OF((voidpf opaque, voidpf stream));
+typedef long     (ZCALLBACK *seek_file_func)      OF((voidpf opaque, voidpf stream, uLong offset, int origin));
+
+
+/* here is the "old" 32 bits structure structure */
+typedef struct zlib_filefunc_def_s
+{
+    open_file_func      zopen_file;
+    read_file_func      zread_file;
+    write_file_func     zwrite_file;
+    tell_file_func      ztell_file;
+    seek_file_func      zseek_file;
+    close_file_func     zclose_file;
+    testerror_file_func zerror_file;
+    voidpf              opaque;
+} zlib_filefunc_def;
+
+typedef ZPOS64_T (ZCALLBACK *tell64_file_func)    OF((voidpf opaque, voidpf stream));
+typedef long     (ZCALLBACK *seek64_file_func)    OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+typedef voidpf   (ZCALLBACK *open64_file_func)    OF((voidpf opaque, const void* filename, int mode));
+
+typedef struct zlib_filefunc64_def_s
+{
+    open64_file_func    zopen64_file;
+    read_file_func      zread_file;
+    write_file_func     zwrite_file;
+    tell64_file_func    ztell64_file;
+    seek64_file_func    zseek64_file;
+    close_file_func     zclose_file;
+    testerror_file_func zerror_file;
+    voidpf              opaque;
+} zlib_filefunc64_def;
+
+void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
+void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
+
+/* now internal definition, only for zip.c and unzip.h */
+typedef struct zlib_filefunc64_32_def_s
+{
+    zlib_filefunc64_def zfile_func64;
+    open_file_func      zopen32_file;
+    tell_file_func      ztell32_file;
+    seek_file_func      zseek32_file;
+} zlib_filefunc64_32_def;
+
+
+#define ZREAD64(filefunc,filestream,buf,size)     ((*((filefunc).zfile_func64.zread_file))   ((filefunc).zfile_func64.opaque,filestream,buf,size))
+#define ZWRITE64(filefunc,filestream,buf,size)    ((*((filefunc).zfile_func64.zwrite_file))  ((filefunc).zfile_func64.opaque,filestream,buf,size))
+//#define ZTELL64(filefunc,filestream)            ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
+//#define ZSEEK64(filefunc,filestream,pos,mode)   ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))
+#define ZCLOSE64(filefunc,filestream)             ((*((filefunc).zfile_func64.zclose_file))  ((filefunc).zfile_func64.opaque,filestream))
+#define ZERROR64(filefunc,filestream)             ((*((filefunc).zfile_func64.zerror_file))  ((filefunc).zfile_func64.opaque,filestream))
+
+voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode));
+long    call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
+ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
+
+void    fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32);
+
+#define ZOPEN64(filefunc,filename,mode)         (call_zopen64((&(filefunc)),(filename),(mode)))
+#define ZTELL64(filefunc,filestream)            (call_ztell64((&(filefunc)),(filestream)))
+#define ZSEEK64(filefunc,filestream,pos,mode)   (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/iowin32.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/iowin32.c
new file mode 100644
index 000000000..274f39eb1
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/iowin32.c
@@ -0,0 +1,462 @@
+/* iowin32.c -- IO base function header for compress/uncompress .zip
+     Version 1.1, February 14h, 2010
+     part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+     For more info read MiniZip_info.txt
+
+*/
+
+#include <stdlib.h>
+
+#include "zlib.h"
+#include "ioapi.h"
+#include "iowin32.h"
+
+#ifndef INVALID_HANDLE_VALUE
+#define INVALID_HANDLE_VALUE (0xFFFFFFFF)
+#endif
+
+#ifndef INVALID_SET_FILE_POINTER
+#define INVALID_SET_FILE_POINTER ((DWORD)-1)
+#endif
+
+
+// see Include/shared/winapifamily.h in the Windows Kit
+#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
+#if WINAPI_FAMILY_ONE_PARTITION(WINAPI_FAMILY, WINAPI_PARTITION_APP)
+#define IOWIN32_USING_WINRT_API 1
+#endif
+#endif
+
+voidpf  ZCALLBACK win32_open_file_func  OF((voidpf opaque, const char* filename, int mode));
+uLong   ZCALLBACK win32_read_file_func  OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+uLong   ZCALLBACK win32_write_file_func OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
+ZPOS64_T ZCALLBACK win32_tell64_file_func  OF((voidpf opaque, voidpf stream));
+long    ZCALLBACK win32_seek64_file_func  OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+int     ZCALLBACK win32_close_file_func OF((voidpf opaque, voidpf stream));
+int     ZCALLBACK win32_error_file_func OF((voidpf opaque, voidpf stream));
+
+typedef struct
+{
+    HANDLE hf;
+    int error;
+} WIN32FILE_IOWIN;
+
+
+static void win32_translate_open_mode(int mode,
+                                      DWORD* lpdwDesiredAccess,
+                                      DWORD* lpdwCreationDisposition,
+                                      DWORD* lpdwShareMode,
+                                      DWORD* lpdwFlagsAndAttributes)
+{
+    *lpdwDesiredAccess = *lpdwShareMode = *lpdwFlagsAndAttributes = *lpdwCreationDisposition = 0;
+
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+    {
+        *lpdwDesiredAccess = GENERIC_READ;
+        *lpdwCreationDisposition = OPEN_EXISTING;
+        *lpdwShareMode = FILE_SHARE_READ;
+    }
+    else if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+    {
+        *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
+        *lpdwCreationDisposition = OPEN_EXISTING;
+    }
+    else if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+    {
+        *lpdwDesiredAccess = GENERIC_WRITE | GENERIC_READ;
+        *lpdwCreationDisposition = CREATE_ALWAYS;
+    }
+}
+
+static voidpf win32_build_iowin(HANDLE hFile)
+{
+    voidpf ret=NULL;
+
+    if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
+    {
+        WIN32FILE_IOWIN w32fiow;
+        w32fiow.hf = hFile;
+        w32fiow.error = 0;
+        ret = malloc(sizeof(WIN32FILE_IOWIN));
+
+        if (ret==NULL)
+            CloseHandle(hFile);
+        else
+            *((WIN32FILE_IOWIN*)ret) = w32fiow;
+    }
+    return ret;
+}
+
+voidpf ZCALLBACK win32_open64_file_func (voidpf opaque,const void* filename,int mode)
+{
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+#ifdef UNICODE
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#endif
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open64_file_funcA (voidpf opaque,const void* filename,int mode)
+{
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFileA((LPCSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open64_file_funcW (voidpf opaque,const void* filename,int mode)
+{
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCWSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition,NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFileW((LPCWSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+voidpf ZCALLBACK win32_open_file_func (voidpf opaque,const char* filename,int mode)
+{
+    const char* mode_fopen = NULL;
+    DWORD dwDesiredAccess,dwCreationDisposition,dwShareMode,dwFlagsAndAttributes ;
+    HANDLE hFile = NULL;
+
+    win32_translate_open_mode(mode,&dwDesiredAccess,&dwCreationDisposition,&dwShareMode,&dwFlagsAndAttributes);
+
+#ifdef IOWIN32_USING_WINRT_API
+#ifdef UNICODE
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile2((LPCTSTR)filename, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+    {
+        WCHAR filenameW[FILENAME_MAX + 0x200 + 1];
+        MultiByteToWideChar(CP_ACP,0,(const char*)filename,-1,filenameW,FILENAME_MAX + 0x200);
+        hFile = CreateFile2(filenameW, dwDesiredAccess, dwShareMode, dwCreationDisposition, NULL);
+    }
+#endif
+#else
+    if ((filename!=NULL) && (dwDesiredAccess != 0))
+        hFile = CreateFile((LPCTSTR)filename, dwDesiredAccess, dwShareMode, NULL, dwCreationDisposition, dwFlagsAndAttributes, NULL);
+#endif
+
+    return win32_build_iowin(hFile);
+}
+
+
+uLong ZCALLBACK win32_read_file_func (voidpf opaque, voidpf stream, void* buf,uLong size)
+{
+    uLong ret=0;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+
+    if (hFile != NULL)
+    {
+        if (!ReadFile(hFile, buf, size, &ret, NULL))
+        {
+            DWORD dwErr = GetLastError();
+            if (dwErr == ERROR_HANDLE_EOF)
+                dwErr = 0;
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+        }
+    }
+
+    return ret;
+}
+
+
+uLong ZCALLBACK win32_write_file_func (voidpf opaque,voidpf stream,const void* buf,uLong size)
+{
+    uLong ret=0;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+
+    if (hFile != NULL)
+    {
+        if (!WriteFile(hFile, buf, size, &ret, NULL))
+        {
+            DWORD dwErr = GetLastError();
+            if (dwErr == ERROR_HANDLE_EOF)
+                dwErr = 0;
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+        }
+    }
+
+    return ret;
+}
+
+static BOOL MySetFilePointerEx(HANDLE hFile, LARGE_INTEGER pos, LARGE_INTEGER *newPos,  DWORD dwMoveMethod)
+{
+#ifdef IOWIN32_USING_WINRT_API
+    return SetFilePointerEx(hFile, pos, newPos, dwMoveMethod);
+#else
+    LONG lHigh = pos.HighPart;
+    DWORD dwNewPos = SetFilePointer(hFile, pos.LowPart, &lHigh, dwMoveMethod);
+    BOOL fOk = TRUE;
+    if (dwNewPos == 0xFFFFFFFF)
+        if (GetLastError() != NO_ERROR)
+            fOk = FALSE;
+    if ((newPos != NULL) && (fOk))
+    {
+        newPos->LowPart = dwNewPos;
+        newPos->HighPart = lHigh;
+    }
+    return fOk;
+#endif
+}
+
+long ZCALLBACK win32_tell_file_func (voidpf opaque,voidpf stream)
+{
+    long ret=-1;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+    if (hFile != NULL)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = 0;
+
+        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = -1;
+        }
+        else
+            ret=(long)pos.LowPart;
+    }
+    return ret;
+}
+
+ZPOS64_T ZCALLBACK win32_tell64_file_func (voidpf opaque, voidpf stream)
+{
+    ZPOS64_T ret= (ZPOS64_T)-1;
+    HANDLE hFile = NULL;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream)->hf;
+
+    if (hFile)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = 0;
+
+        if (!MySetFilePointerEx(hFile, pos, &pos, FILE_CURRENT))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = (ZPOS64_T)-1;
+        }
+        else
+            ret=pos.QuadPart;
+    }
+    return ret;
+}
+
+
+long ZCALLBACK win32_seek_file_func (voidpf opaque,voidpf stream,uLong offset,int origin)
+{
+    DWORD dwMoveMethod=0xFFFFFFFF;
+    HANDLE hFile = NULL;
+
+    long ret=-1;
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        dwMoveMethod = FILE_CURRENT;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        dwMoveMethod = FILE_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        dwMoveMethod = FILE_BEGIN;
+        break;
+    default: return -1;
+    }
+
+    if (hFile != NULL)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = offset;
+        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = -1;
+        }
+        else
+            ret=0;
+    }
+    return ret;
+}
+
+long ZCALLBACK win32_seek64_file_func (voidpf opaque, voidpf stream,ZPOS64_T offset,int origin)
+{
+    DWORD dwMoveMethod=0xFFFFFFFF;
+    HANDLE hFile = NULL;
+    long ret=-1;
+
+    if (stream!=NULL)
+        hFile = ((WIN32FILE_IOWIN*)stream)->hf;
+
+    switch (origin)
+    {
+        case ZLIB_FILEFUNC_SEEK_CUR :
+            dwMoveMethod = FILE_CURRENT;
+            break;
+        case ZLIB_FILEFUNC_SEEK_END :
+            dwMoveMethod = FILE_END;
+            break;
+        case ZLIB_FILEFUNC_SEEK_SET :
+            dwMoveMethod = FILE_BEGIN;
+            break;
+        default: return -1;
+    }
+
+    if (hFile)
+    {
+        LARGE_INTEGER pos;
+        pos.QuadPart = offset;
+        if (!MySetFilePointerEx(hFile, pos, NULL, dwMoveMethod))
+        {
+            DWORD dwErr = GetLastError();
+            ((WIN32FILE_IOWIN*)stream) -> error=(int)dwErr;
+            ret = -1;
+        }
+        else
+            ret=0;
+    }
+    return ret;
+}
+
+int ZCALLBACK win32_close_file_func (voidpf opaque, voidpf stream)
+{
+    int ret=-1;
+
+    if (stream!=NULL)
+    {
+        HANDLE hFile;
+        hFile = ((WIN32FILE_IOWIN*)stream) -> hf;
+        if (hFile != NULL)
+        {
+            CloseHandle(hFile);
+            ret=0;
+        }
+        free(stream);
+    }
+    return ret;
+}
+
+int ZCALLBACK win32_error_file_func (voidpf opaque,voidpf stream)
+{
+    int ret=-1;
+    if (stream!=NULL)
+    {
+        ret = ((WIN32FILE_IOWIN*)stream) -> error;
+    }
+    return ret;
+}
+
+void fill_win32_filefunc (zlib_filefunc_def* pzlib_filefunc_def)
+{
+    pzlib_filefunc_def->zopen_file = win32_open_file_func;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell_file = win32_tell_file_func;
+    pzlib_filefunc_def->zseek_file = win32_seek_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_win32_filefunc64(zlib_filefunc64_def* pzlib_filefunc_def)
+{
+    pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+
+void fill_win32_filefunc64A(zlib_filefunc64_def* pzlib_filefunc_def)
+{
+    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
+
+
+void fill_win32_filefunc64W(zlib_filefunc64_def* pzlib_filefunc_def)
+{
+    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
+    pzlib_filefunc_def->zread_file = win32_read_file_func;
+    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
+    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
+    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
+    pzlib_filefunc_def->zclose_file = win32_close_file_func;
+    pzlib_filefunc_def->zerror_file = win32_error_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/iowin32.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/iowin32.h
new file mode 100644
index 000000000..0ca0969a7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/iowin32.h
@@ -0,0 +1,28 @@
+/* iowin32.h -- IO base function header for compress/uncompress .zip
+     Version 1.1, February 14h, 2010
+     part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+*/
+
+#include <windows.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void fill_win32_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
+void fill_win32_filefunc64 OF((zlib_filefunc64_def* pzlib_filefunc_def));
+void fill_win32_filefunc64A OF((zlib_filefunc64_def* pzlib_filefunc_def));
+void fill_win32_filefunc64W OF((zlib_filefunc64_def* pzlib_filefunc_def));
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/make_vms.com b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/make_vms.com
new file mode 100644
index 000000000..9ac13a98f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/make_vms.com
@@ -0,0 +1,25 @@
+$ if f$search("ioapi.h_orig") .eqs. "" then copy ioapi.h ioapi.h_orig
+$ open/write zdef vmsdefs.h
+$ copy sys$input: zdef
+$ deck
+#define unix
+#define fill_zlib_filefunc64_32_def_from_filefunc32 fillzffunc64from
+#define Write_Zip64EndOfCentralDirectoryLocator Write_Zip64EoDLocator
+#define Write_Zip64EndOfCentralDirectoryRecord Write_Zip64EoDRecord
+#define Write_EndOfCentralDirectoryRecord Write_EoDRecord
+$ eod
+$ close zdef
+$ copy vmsdefs.h,ioapi.h_orig ioapi.h
+$ cc/include=[--]/prefix=all ioapi.c
+$ cc/include=[--]/prefix=all miniunz.c
+$ cc/include=[--]/prefix=all unzip.c
+$ cc/include=[--]/prefix=all minizip.c
+$ cc/include=[--]/prefix=all zip.c
+$ link miniunz,unzip,ioapi,[--]libz.olb/lib
+$ link minizip,zip,ioapi,[--]libz.olb/lib
+$ mcr []minizip test minizip_info.txt
+$ mcr []miniunz -l test.zip
+$ rename minizip_info.txt; minizip_info.txt_old
+$ mcr []miniunz test.zip
+$ delete test.zip;*
+$exit
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/miniunz.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/miniunz.c
new file mode 100644
index 000000000..3d65401be
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/miniunz.c
@@ -0,0 +1,660 @@
+/*
+   miniunz.c
+   Version 1.1, February 14h, 2010
+   sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+*/
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+        #ifndef __USE_FILE_OFFSET64
+                #define __USE_FILE_OFFSET64
+        #endif
+        #ifndef __USE_LARGEFILE64
+                #define __USE_LARGEFILE64
+        #endif
+        #ifndef _LARGEFILE64_SOURCE
+                #define _LARGEFILE64_SOURCE
+        #endif
+        #ifndef _FILE_OFFSET_BIT
+                #define _FILE_OFFSET_BIT 64
+        #endif
+#endif
+
+#ifdef __APPLE__
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#ifdef _WIN32
+# include <direct.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <utime.h>
+#endif
+
+
+#include "unzip.h"
+
+#define CASESENSITIVITY (0)
+#define WRITEBUFFERSIZE (8192)
+#define MAXFILENAME (256)
+
+#ifdef _WIN32
+#define USEWIN32IOAPI
+#include "iowin32.h"
+#endif
+/*
+  mini unzip, demo of unzip package
+
+  usage :
+  Usage : miniunz [-exvlo] file.zip [file_to_extract] [-d extractdir]
+
+  list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT
+    if it exists
+*/
+
+
+/* change_file_date : change the date/time of a file
+    filename : the filename of the file where date/time must be modified
+    dosdate : the new date at the MSDos format (4 bytes)
+    tmu_date : the SAME new date at the tm_unz format */
+void change_file_date(filename,dosdate,tmu_date)
+    const char *filename;
+    uLong dosdate;
+    tm_unz tmu_date;
+{
+#ifdef _WIN32
+  HANDLE hFile;
+  FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite;
+
+  hFile = CreateFileA(filename,GENERIC_READ | GENERIC_WRITE,
+                      0,NULL,OPEN_EXISTING,0,NULL);
+  GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite);
+  DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal);
+  LocalFileTimeToFileTime(&ftLocal,&ftm);
+  SetFileTime(hFile,&ftm,&ftLastAcc,&ftm);
+  CloseHandle(hFile);
+#else
+#ifdef unix || __APPLE__
+  struct utimbuf ut;
+  struct tm newdate;
+  newdate.tm_sec = tmu_date.tm_sec;
+  newdate.tm_min=tmu_date.tm_min;
+  newdate.tm_hour=tmu_date.tm_hour;
+  newdate.tm_mday=tmu_date.tm_mday;
+  newdate.tm_mon=tmu_date.tm_mon;
+  if (tmu_date.tm_year > 1900)
+      newdate.tm_year=tmu_date.tm_year - 1900;
+  else
+      newdate.tm_year=tmu_date.tm_year ;
+  newdate.tm_isdst=-1;
+
+  ut.actime=ut.modtime=mktime(&newdate);
+  utime(filename,&ut);
+#endif
+#endif
+}
+
+
+/* mymkdir and change_file_date are not 100 % portable
+   As I don't know well Unix, I wait feedback for the unix portion */
+
+int mymkdir(dirname)
+    const char* dirname;
+{
+    int ret=0;
+#ifdef _WIN32
+    ret = _mkdir(dirname);
+#elif unix
+    ret = mkdir (dirname,0775);
+#elif __APPLE__
+    ret = mkdir (dirname,0775);
+#endif
+    return ret;
+}
+
+int makedir (newdir)
+    char *newdir;
+{
+  char *buffer ;
+  char *p;
+  int  len = (int)strlen(newdir);
+
+  if (len <= 0)
+    return 0;
+
+  buffer = (char*)malloc(len+1);
+        if (buffer==NULL)
+        {
+                printf("Error allocating memory\n");
+                return UNZ_INTERNALERROR;
+        }
+  strcpy(buffer,newdir);
+
+  if (buffer[len-1] == '/') {
+    buffer[len-1] = '\0';
+  }
+  if (mymkdir(buffer) == 0)
+    {
+      free(buffer);
+      return 1;
+    }
+
+  p = buffer+1;
+  while (1)
+    {
+      char hold;
+
+      while(*p && *p != '\\' && *p != '/')
+        p++;
+      hold = *p;
+      *p = 0;
+      if ((mymkdir(buffer) == -1) && (errno == ENOENT))
+        {
+          printf("couldn't create directory %s\n",buffer);
+          free(buffer);
+          return 0;
+        }
+      if (hold == 0)
+        break;
+      *p++ = hold;
+    }
+  free(buffer);
+  return 1;
+}
+
+void do_banner()
+{
+    printf("MiniUnz 1.01b, demo of zLib + Unz package written by Gilles Vollant\n");
+    printf("more info at http://www.winimage.com/zLibDll/unzip.html\n\n");
+}
+
+void do_help()
+{
+    printf("Usage : miniunz [-e] [-x] [-v] [-l] [-o] [-p password] file.zip [file_to_extr.] [-d extractdir]\n\n" \
+           "  -e  Extract without pathname (junk paths)\n" \
+           "  -x  Extract with pathname\n" \
+           "  -v  list files\n" \
+           "  -l  list files\n" \
+           "  -d  directory to extract into\n" \
+           "  -o  overwrite files without prompting\n" \
+           "  -p  extract crypted file using password\n\n");
+}
+
+void Display64BitsSize(ZPOS64_T n, int size_char)
+{
+  /* to avoid compatibility problem , we do here the conversion */
+  char number[21];
+  int offset=19;
+  int pos_string = 19;
+  number[20]=0;
+  for (;;) {
+      number[offset]=(char)((n%10)+'0');
+      if (number[offset] != '0')
+          pos_string=offset;
+      n/=10;
+      if (offset==0)
+          break;
+      offset--;
+  }
+  {
+      int size_display_string = 19-pos_string;
+      while (size_char > size_display_string)
+      {
+          size_char--;
+          printf(" ");
+      }
+  }
+
+  printf("%s",&number[pos_string]);
+}
+
+int do_list(uf)
+    unzFile uf;
+{
+    uLong i;
+    unz_global_info64 gi;
+    int err;
+
+    err = unzGetGlobalInfo64(uf,&gi);
+    if (err!=UNZ_OK)
+        printf("error %d with zipfile in unzGetGlobalInfo \n",err);
+    printf("  Length  Method     Size Ratio   Date    Time   CRC-32     Name\n");
+    printf("  ------  ------     ---- -----   ----    ----   ------     ----\n");
+    for (i=0;i<gi.number_entry;i++)
+    {
+        char filename_inzip[256];
+        unz_file_info64 file_info;
+        uLong ratio=0;
+        const char *string_method;
+        char charCrypt=' ';
+        err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
+        if (err!=UNZ_OK)
+        {
+            printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
+            break;
+        }
+        if (file_info.uncompressed_size>0)
+            ratio = (uLong)((file_info.compressed_size*100)/file_info.uncompressed_size);
+
+        /* display a '*' if the file is crypted */
+        if ((file_info.flag & 1) != 0)
+            charCrypt='*';
+
+        if (file_info.compression_method==0)
+            string_method="Stored";
+        else
+        if (file_info.compression_method==Z_DEFLATED)
+        {
+            uInt iLevel=(uInt)((file_info.flag & 0x6)/2);
+            if (iLevel==0)
+              string_method="Defl:N";
+            else if (iLevel==1)
+              string_method="Defl:X";
+            else if ((iLevel==2) || (iLevel==3))
+              string_method="Defl:F"; /* 2:fast , 3 : extra fast*/
+        }
+        else
+        if (file_info.compression_method==Z_BZIP2ED)
+        {
+              string_method="BZip2 ";
+        }
+        else
+            string_method="Unkn. ";
+
+        Display64BitsSize(file_info.uncompressed_size,7);
+        printf("  %6s%c",string_method,charCrypt);
+        Display64BitsSize(file_info.compressed_size,7);
+        printf(" %3lu%%  %2.2lu-%2.2lu-%2.2lu  %2.2lu:%2.2lu  %8.8lx   %s\n",
+                ratio,
+                (uLong)file_info.tmu_date.tm_mon + 1,
+                (uLong)file_info.tmu_date.tm_mday,
+                (uLong)file_info.tmu_date.tm_year % 100,
+                (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min,
+                (uLong)file_info.crc,filename_inzip);
+        if ((i+1)<gi.number_entry)
+        {
+            err = unzGoToNextFile(uf);
+            if (err!=UNZ_OK)
+            {
+                printf("error %d with zipfile in unzGoToNextFile\n",err);
+                break;
+            }
+        }
+    }
+
+    return 0;
+}
+
+
+int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite,password)
+    unzFile uf;
+    const int* popt_extract_without_path;
+    int* popt_overwrite;
+    const char* password;
+{
+    char filename_inzip[256];
+    char* filename_withoutpath;
+    char* p;
+    int err=UNZ_OK;
+    FILE *fout=NULL;
+    void* buf;
+    uInt size_buf;
+
+    unz_file_info64 file_info;
+    uLong ratio=0;
+    err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
+
+    if (err!=UNZ_OK)
+    {
+        printf("error %d with zipfile in unzGetCurrentFileInfo\n",err);
+        return err;
+    }
+
+    size_buf = WRITEBUFFERSIZE;
+    buf = (void*)malloc(size_buf);
+    if (buf==NULL)
+    {
+        printf("Error allocating memory\n");
+        return UNZ_INTERNALERROR;
+    }
+
+    p = filename_withoutpath = filename_inzip;
+    while ((*p) != '\0')
+    {
+        if (((*p)=='/') || ((*p)=='\\'))
+            filename_withoutpath = p+1;
+        p++;
+    }
+
+    if ((*filename_withoutpath)=='\0')
+    {
+        if ((*popt_extract_without_path)==0)
+        {
+            printf("creating directory: %s\n",filename_inzip);
+            mymkdir(filename_inzip);
+        }
+    }
+    else
+    {
+        const char* write_filename;
+        int skip=0;
+
+        if ((*popt_extract_without_path)==0)
+            write_filename = filename_inzip;
+        else
+            write_filename = filename_withoutpath;
+
+        err = unzOpenCurrentFilePassword(uf,password);
+        if (err!=UNZ_OK)
+        {
+            printf("error %d with zipfile in unzOpenCurrentFilePassword\n",err);
+        }
+
+        if (((*popt_overwrite)==0) && (err==UNZ_OK))
+        {
+            char rep=0;
+            FILE* ftestexist;
+            ftestexist = FOPEN_FUNC(write_filename,"rb");
+            if (ftestexist!=NULL)
+            {
+                fclose(ftestexist);
+                do
+                {
+                    char answer[128];
+                    int ret;
+
+                    printf("The file %s exists. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename);
+                    ret = scanf("%1s",answer);
+                    if (ret != 1)
+                    {
+                       exit(EXIT_FAILURE);
+                    }
+                    rep = answer[0] ;
+                    if ((rep>='a') && (rep<='z'))
+                        rep -= 0x20;
+                }
+                while ((rep!='Y') && (rep!='N') && (rep!='A'));
+            }
+
+            if (rep == 'N')
+                skip = 1;
+
+            if (rep == 'A')
+                *popt_overwrite=1;
+        }
+
+        if ((skip==0) && (err==UNZ_OK))
+        {
+            fout=FOPEN_FUNC(write_filename,"wb");
+            /* some zipfile don't contain directory alone before file */
+            if ((fout==NULL) && ((*popt_extract_without_path)==0) &&
+                                (filename_withoutpath!=(char*)filename_inzip))
+            {
+                char c=*(filename_withoutpath-1);
+                *(filename_withoutpath-1)='\0';
+                makedir(write_filename);
+                *(filename_withoutpath-1)=c;
+                fout=FOPEN_FUNC(write_filename,"wb");
+            }
+
+            if (fout==NULL)
+            {
+                printf("error opening %s\n",write_filename);
+            }
+        }
+
+        if (fout!=NULL)
+        {
+            printf(" extracting: %s\n",write_filename);
+
+            do
+            {
+                err = unzReadCurrentFile(uf,buf,size_buf);
+                if (err<0)
+                {
+                    printf("error %d with zipfile in unzReadCurrentFile\n",err);
+                    break;
+                }
+                if (err>0)
+                    if (fwrite(buf,err,1,fout)!=1)
+                    {
+                        printf("error in writing extracted file\n");
+                        err=UNZ_ERRNO;
+                        break;
+                    }
+            }
+            while (err>0);
+            if (fout)
+                    fclose(fout);
+
+            if (err==0)
+                change_file_date(write_filename,file_info.dosDate,
+                                 file_info.tmu_date);
+        }
+
+        if (err==UNZ_OK)
+        {
+            err = unzCloseCurrentFile (uf);
+            if (err!=UNZ_OK)
+            {
+                printf("error %d with zipfile in unzCloseCurrentFile\n",err);
+            }
+        }
+        else
+            unzCloseCurrentFile(uf); /* don't lose the error */
+    }
+
+    free(buf);
+    return err;
+}
+
+
+int do_extract(uf,opt_extract_without_path,opt_overwrite,password)
+    unzFile uf;
+    int opt_extract_without_path;
+    int opt_overwrite;
+    const char* password;
+{
+    uLong i;
+    unz_global_info64 gi;
+    int err;
+    FILE* fout=NULL;
+
+    err = unzGetGlobalInfo64(uf,&gi);
+    if (err!=UNZ_OK)
+        printf("error %d with zipfile in unzGetGlobalInfo \n",err);
+
+    for (i=0;i<gi.number_entry;i++)
+    {
+        if (do_extract_currentfile(uf,&opt_extract_without_path,
+                                      &opt_overwrite,
+                                      password) != UNZ_OK)
+            break;
+
+        if ((i+1)<gi.number_entry)
+        {
+            err = unzGoToNextFile(uf);
+            if (err!=UNZ_OK)
+            {
+                printf("error %d with zipfile in unzGoToNextFile\n",err);
+                break;
+            }
+        }
+    }
+
+    return 0;
+}
+
+int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite,password)
+    unzFile uf;
+    const char* filename;
+    int opt_extract_without_path;
+    int opt_overwrite;
+    const char* password;
+{
+    int err = UNZ_OK;
+    if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK)
+    {
+        printf("file %s not found in the zipfile\n",filename);
+        return 2;
+    }
+
+    if (do_extract_currentfile(uf,&opt_extract_without_path,
+                                      &opt_overwrite,
+                                      password) == UNZ_OK)
+        return 0;
+    else
+        return 1;
+}
+
+
+int main(argc,argv)
+    int argc;
+    char *argv[];
+{
+    const char *zipfilename=NULL;
+    const char *filename_to_extract=NULL;
+    const char *password=NULL;
+    char filename_try[MAXFILENAME+16] = "";
+    int i;
+    int ret_value=0;
+    int opt_do_list=0;
+    int opt_do_extract=1;
+    int opt_do_extract_withoutpath=0;
+    int opt_overwrite=0;
+    int opt_extractdir=0;
+    const char *dirname=NULL;
+    unzFile uf=NULL;
+
+    do_banner();
+    if (argc==1)
+    {
+        do_help();
+        return 0;
+    }
+    else
+    {
+        for (i=1;i<argc;i++)
+        {
+            if ((*argv[i])=='-')
+            {
+                const char *p=argv[i]+1;
+
+                while ((*p)!='\0')
+                {
+                    char c=*(p++);;
+                    if ((c=='l') || (c=='L'))
+                        opt_do_list = 1;
+                    if ((c=='v') || (c=='V'))
+                        opt_do_list = 1;
+                    if ((c=='x') || (c=='X'))
+                        opt_do_extract = 1;
+                    if ((c=='e') || (c=='E'))
+                        opt_do_extract = opt_do_extract_withoutpath = 1;
+                    if ((c=='o') || (c=='O'))
+                        opt_overwrite=1;
+                    if ((c=='d') || (c=='D'))
+                    {
+                        opt_extractdir=1;
+                        dirname=argv[i+1];
+                    }
+
+                    if (((c=='p') || (c=='P')) && (i+1<argc))
+                    {
+                        password=argv[i+1];
+                        i++;
+                    }
+                }
+            }
+            else
+            {
+                if (zipfilename == NULL)
+                    zipfilename = argv[i];
+                else if ((filename_to_extract==NULL) && (!opt_extractdir))
+                        filename_to_extract = argv[i] ;
+            }
+        }
+    }
+
+    if (zipfilename!=NULL)
+    {
+
+#        ifdef USEWIN32IOAPI
+        zlib_filefunc64_def ffunc;
+#        endif
+
+        strncpy(filename_try, zipfilename,MAXFILENAME-1);
+        /* strncpy doesnt append the trailing NULL, of the string is too long. */
+        filename_try[ MAXFILENAME ] = '\0';
+
+#        ifdef USEWIN32IOAPI
+        fill_win32_filefunc64A(&ffunc);
+        uf = unzOpen2_64(zipfilename,&ffunc);
+#        else
+        uf = unzOpen64(zipfilename);
+#        endif
+        if (uf==NULL)
+        {
+            strcat(filename_try,".zip");
+#            ifdef USEWIN32IOAPI
+            uf = unzOpen2_64(filename_try,&ffunc);
+#            else
+            uf = unzOpen64(filename_try);
+#            endif
+        }
+    }
+
+    if (uf==NULL)
+    {
+        printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename);
+        return 1;
+    }
+    printf("%s opened\n",filename_try);
+
+    if (opt_do_list==1)
+        ret_value = do_list(uf);
+    else if (opt_do_extract==1)
+    {
+#ifdef _WIN32
+        if (opt_extractdir && _chdir(dirname))
+#else
+        if (opt_extractdir && chdir(dirname))
+#endif
+        {
+          printf("Error changing into %s, aborting\n", dirname);
+          exit(-1);
+        }
+
+        if (filename_to_extract == NULL)
+            ret_value = do_extract(uf, opt_do_extract_withoutpath, opt_overwrite, password);
+        else
+            ret_value = do_extract_onefile(uf, filename_to_extract, opt_do_extract_withoutpath, opt_overwrite, password);
+    }
+
+    unzClose(uf);
+
+    return ret_value;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/miniunzip.1 b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/miniunzip.1
new file mode 100644
index 000000000..111ac6919
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/miniunzip.1
@@ -0,0 +1,63 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.TH miniunzip 1 "Nov 7, 2001"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+miniunzip - uncompress and examine ZIP archives
+.SH SYNOPSIS
+.B miniunzip
+.RI [ -exvlo ]
+zipfile [ files_to_extract ] [-d tempdir]
+.SH DESCRIPTION
+.B minizip
+is a simple tool which allows the extraction of compressed file
+archives in the ZIP format used by the MS-DOS utility PKZIP.  It was
+written as a demonstration of the
+.IR zlib (3)
+library and therefore lack many of the features of the
+.IR unzip (1)
+program.
+.SH OPTIONS
+A number of options are supported.  With the exception of
+.BI \-d\  tempdir
+these must be supplied before any
+other arguments and are:
+.TP
+.BI \-l\ ,\ \-\-v
+List the files in the archive without extracting them.
+.TP
+.B \-o
+Overwrite files without prompting for confirmation.
+.TP
+.B \-x
+Extract files (default).
+.PP
+The
+.I zipfile
+argument is the name of the archive to process. The next argument can be used
+to specify a single file to extract from the archive.
+
+Lastly, the following option can be specified at the end of the command-line:
+.TP
+.BI \-d\  tempdir
+Extract the archive in the directory
+.I tempdir
+rather than the current directory.
+.SH SEE ALSO
+.BR minizip (1),
+.BR zlib (3),
+.BR unzip (1).
+.SH AUTHOR
+This program was written by Gilles Vollant.  This manual page was
+written by Mark Brown <broonie@sirena.org.uk>. The -d tempdir option
+was added by Dirk Eddelbuettel <edd@debian.org>.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.1 b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.1
new file mode 100644
index 000000000..1154484c1
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.1
@@ -0,0 +1,46 @@
+.\"                                      Hey, EMACS: -*- nroff -*-
+.TH minizip 1 "May 2, 2001"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+minizip - create ZIP archives
+.SH SYNOPSIS
+.B minizip
+.RI [ -o ]
+zipfile [ " files" ... ]
+.SH DESCRIPTION
+.B minizip
+is a simple tool which allows the creation of compressed file archives
+in the ZIP format used by the MS-DOS utility PKZIP.  It was written as
+a demonstration of the
+.IR zlib (3)
+library and therefore lack many of the features of the
+.IR zip (1)
+program.
+.SH OPTIONS
+The first argument supplied is the name of the ZIP archive to create or
+.RI -o
+in which case it is ignored and the second argument treated as the
+name of the ZIP file.  If the ZIP file already exists it will be
+overwritten.
+.PP
+Subsequent arguments specify a list of files to place in the ZIP
+archive.  If none are specified then an empty archive will be created.
+.SH SEE ALSO
+.BR miniunzip (1),
+.BR zlib (3),
+.BR zip (1).
+.SH AUTHOR
+This program was written by Gilles Vollant.  This manual page was
+written by Mark Brown <broonie@sirena.org.uk>.
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.c
new file mode 100644
index 000000000..4288962ec
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.c
@@ -0,0 +1,520 @@
+/*
+   minizip.c
+   Version 1.1, February 14h, 2010
+   sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+*/
+
+
+#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+        #ifndef __USE_FILE_OFFSET64
+                #define __USE_FILE_OFFSET64
+        #endif
+        #ifndef __USE_LARGEFILE64
+                #define __USE_LARGEFILE64
+        #endif
+        #ifndef _LARGEFILE64_SOURCE
+                #define _LARGEFILE64_SOURCE
+        #endif
+        #ifndef _FILE_OFFSET_BIT
+                #define _FILE_OFFSET_BIT 64
+        #endif
+#endif
+
+#ifdef __APPLE__
+// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
+#define FOPEN_FUNC(filename, mode) fopen(filename, mode)
+#define FTELLO_FUNC(stream) ftello(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin)
+#else
+#define FOPEN_FUNC(filename, mode) fopen64(filename, mode)
+#define FTELLO_FUNC(stream) ftello64(stream)
+#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin)
+#endif
+
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#ifdef _WIN32
+# include <direct.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <utime.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+#endif
+
+#include "zip.h"
+
+#ifdef _WIN32
+        #define USEWIN32IOAPI
+        #include "iowin32.h"
+#endif
+
+
+
+#define WRITEBUFFERSIZE (16384)
+#define MAXFILENAME (256)
+
+#ifdef _WIN32
+uLong filetime(f, tmzip, dt)
+    char *f;                /* name of file to get info on */
+    tm_zip *tmzip;             /* return value: access, modific. and creation times */
+    uLong *dt;             /* dostime */
+{
+  int ret = 0;
+  {
+      FILETIME ftLocal;
+      HANDLE hFind;
+      WIN32_FIND_DATAA ff32;
+
+      hFind = FindFirstFileA(f,&ff32);
+      if (hFind != INVALID_HANDLE_VALUE)
+      {
+        FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
+        FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
+        FindClose(hFind);
+        ret = 1;
+      }
+  }
+  return ret;
+}
+#else
+#ifdef unix || __APPLE__
+uLong filetime(f, tmzip, dt)
+    char *f;               /* name of file to get info on */
+    tm_zip *tmzip;         /* return value: access, modific. and creation times */
+    uLong *dt;             /* dostime */
+{
+  int ret=0;
+  struct stat s;        /* results of stat() */
+  struct tm* filedate;
+  time_t tm_t=0;
+
+  if (strcmp(f,"-")!=0)
+  {
+    char name[MAXFILENAME+1];
+    int len = strlen(f);
+    if (len > MAXFILENAME)
+      len = MAXFILENAME;
+
+    strncpy(name, f,MAXFILENAME-1);
+    /* strncpy doesnt append the trailing NULL, of the string is too long. */
+    name[ MAXFILENAME ] = '\0';
+
+    if (name[len - 1] == '/')
+      name[len - 1] = '\0';
+    /* not all systems allow stat'ing a file with / appended */
+    if (stat(name,&s)==0)
+    {
+      tm_t = s.st_mtime;
+      ret = 1;
+    }
+  }
+  filedate = localtime(&tm_t);
+
+  tmzip->tm_sec  = filedate->tm_sec;
+  tmzip->tm_min  = filedate->tm_min;
+  tmzip->tm_hour = filedate->tm_hour;
+  tmzip->tm_mday = filedate->tm_mday;
+  tmzip->tm_mon  = filedate->tm_mon ;
+  tmzip->tm_year = filedate->tm_year;
+
+  return ret;
+}
+#else
+uLong filetime(f, tmzip, dt)
+    char *f;                /* name of file to get info on */
+    tm_zip *tmzip;             /* return value: access, modific. and creation times */
+    uLong *dt;             /* dostime */
+{
+    return 0;
+}
+#endif
+#endif
+
+
+
+
+int check_exist_file(filename)
+    const char* filename;
+{
+    FILE* ftestexist;
+    int ret = 1;
+    ftestexist = FOPEN_FUNC(filename,"rb");
+    if (ftestexist==NULL)
+        ret = 0;
+    else
+        fclose(ftestexist);
+    return ret;
+}
+
+void do_banner()
+{
+    printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
+    printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
+}
+
+void do_help()
+{
+    printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
+           "  -o  Overwrite existing file.zip\n" \
+           "  -a  Append to existing file.zip\n" \
+           "  -0  Store only\n" \
+           "  -1  Compress faster\n" \
+           "  -9  Compress better\n\n" \
+           "  -j  exclude path. store only the file name.\n\n");
+}
+
+/* calculate the CRC32 of a file,
+   because to encrypt a file, we need known the CRC32 of the file before */
+int getFileCrc(const char* filenameinzip,void*buf,unsigned long size_buf,unsigned long* result_crc)
+{
+   unsigned long calculate_crc=0;
+   int err=ZIP_OK;
+   FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
+
+   unsigned long size_read = 0;
+   unsigned long total_read = 0;
+   if (fin==NULL)
+   {
+       err = ZIP_ERRNO;
+   }
+
+    if (err == ZIP_OK)
+        do
+        {
+            err = ZIP_OK;
+            size_read = (int)fread(buf,1,size_buf,fin);
+            if (size_read < size_buf)
+                if (feof(fin)==0)
+            {
+                printf("error in reading %s\n",filenameinzip);
+                err = ZIP_ERRNO;
+            }
+
+            if (size_read>0)
+                calculate_crc = crc32(calculate_crc,buf,size_read);
+            total_read += size_read;
+
+        } while ((err == ZIP_OK) && (size_read>0));
+
+    if (fin)
+        fclose(fin);
+
+    *result_crc=calculate_crc;
+    printf("file %s crc %lx\n", filenameinzip, calculate_crc);
+    return err;
+}
+
+int isLargeFile(const char* filename)
+{
+  int largeFile = 0;
+  ZPOS64_T pos = 0;
+  FILE* pFile = FOPEN_FUNC(filename, "rb");
+
+  if(pFile != NULL)
+  {
+    int n = FSEEKO_FUNC(pFile, 0, SEEK_END);
+    pos = FTELLO_FUNC(pFile);
+
+                printf("File : %s is %lld bytes\n", filename, pos);
+
+    if(pos >= 0xffffffff)
+     largeFile = 1;
+
+                fclose(pFile);
+  }
+
+ return largeFile;
+}
+
+int main(argc,argv)
+    int argc;
+    char *argv[];
+{
+    int i;
+    int opt_overwrite=0;
+    int opt_compress_level=Z_DEFAULT_COMPRESSION;
+    int opt_exclude_path=0;
+    int zipfilenamearg = 0;
+    char filename_try[MAXFILENAME+16];
+    int zipok;
+    int err=0;
+    int size_buf=0;
+    void* buf=NULL;
+    const char* password=NULL;
+
+
+    do_banner();
+    if (argc==1)
+    {
+        do_help();
+        return 0;
+    }
+    else
+    {
+        for (i=1;i<argc;i++)
+        {
+            if ((*argv[i])=='-')
+            {
+                const char *p=argv[i]+1;
+
+                while ((*p)!='\0')
+                {
+                    char c=*(p++);;
+                    if ((c=='o') || (c=='O'))
+                        opt_overwrite = 1;
+                    if ((c=='a') || (c=='A'))
+                        opt_overwrite = 2;
+                    if ((c>='0') && (c<='9'))
+                        opt_compress_level = c-'0';
+                    if ((c=='j') || (c=='J'))
+                        opt_exclude_path = 1;
+
+                    if (((c=='p') || (c=='P')) && (i+1<argc))
+                    {
+                        password=argv[i+1];
+                        i++;
+                    }
+                }
+            }
+            else
+            {
+                if (zipfilenamearg == 0)
+                {
+                    zipfilenamearg = i ;
+                }
+            }
+        }
+    }
+
+    size_buf = WRITEBUFFERSIZE;
+    buf = (void*)malloc(size_buf);
+    if (buf==NULL)
+    {
+        printf("Error allocating memory\n");
+        return ZIP_INTERNALERROR;
+    }
+
+    if (zipfilenamearg==0)
+    {
+        zipok=0;
+    }
+    else
+    {
+        int i,len;
+        int dot_found=0;
+
+        zipok = 1 ;
+        strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
+        /* strncpy doesnt append the trailing NULL, of the string is too long. */
+        filename_try[ MAXFILENAME ] = '\0';
+
+        len=(int)strlen(filename_try);
+        for (i=0;i<len;i++)
+            if (filename_try[i]=='.')
+                dot_found=1;
+
+        if (dot_found==0)
+            strcat(filename_try,".zip");
+
+        if (opt_overwrite==2)
+        {
+            /* if the file don't exist, we not append file */
+            if (check_exist_file(filename_try)==0)
+                opt_overwrite=1;
+        }
+        else
+        if (opt_overwrite==0)
+            if (check_exist_file(filename_try)!=0)
+            {
+                char rep=0;
+                do
+                {
+                    char answer[128];
+                    int ret;
+                    printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
+                    ret = scanf("%1s",answer);
+                    if (ret != 1)
+                    {
+                       exit(EXIT_FAILURE);
+                    }
+                    rep = answer[0] ;
+                    if ((rep>='a') && (rep<='z'))
+                        rep -= 0x20;
+                }
+                while ((rep!='Y') && (rep!='N') && (rep!='A'));
+                if (rep=='N')
+                    zipok = 0;
+                if (rep=='A')
+                    opt_overwrite = 2;
+            }
+    }
+
+    if (zipok==1)
+    {
+        zipFile zf;
+        int errclose;
+#        ifdef USEWIN32IOAPI
+        zlib_filefunc64_def ffunc;
+        fill_win32_filefunc64A(&ffunc);
+        zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
+#        else
+        zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
+#        endif
+
+        if (zf == NULL)
+        {
+            printf("error opening %s\n",filename_try);
+            err= ZIP_ERRNO;
+        }
+        else
+            printf("creating %s\n",filename_try);
+
+        for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
+        {
+            if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
+                  ((argv[i][1]=='o') || (argv[i][1]=='O') ||
+                   (argv[i][1]=='a') || (argv[i][1]=='A') ||
+                   (argv[i][1]=='p') || (argv[i][1]=='P') ||
+                   ((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
+                  (strlen(argv[i]) == 2)))
+            {
+                FILE * fin;
+                int size_read;
+                const char* filenameinzip = argv[i];
+                const char *savefilenameinzip;
+                zip_fileinfo zi;
+                unsigned long crcFile=0;
+                int zip64 = 0;
+
+                zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
+                zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
+                zi.dosDate = 0;
+                zi.internal_fa = 0;
+                zi.external_fa = 0;
+                filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
+
+/*
+                err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
+                                 NULL,0,NULL,0,NULL / * comment * /,
+                                 (opt_compress_level != 0) ? Z_DEFLATED : 0,
+                                 opt_compress_level);
+*/
+                if ((password != NULL) && (err==ZIP_OK))
+                    err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
+
+                zip64 = isLargeFile(filenameinzip);
+
+                                                         /* The path name saved, should not include a leading slash. */
+               /*if it did, windows/xp and dynazip couldn't read the zip file. */
+                 savefilenameinzip = filenameinzip;
+                 while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
+                 {
+                     savefilenameinzip++;
+                 }
+
+                 /*should the zip file contain any path at all?*/
+                 if( opt_exclude_path )
+                 {
+                     const char *tmpptr;
+                     const char *lastslash = 0;
+                     for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
+                     {
+                         if( *tmpptr == '\\' || *tmpptr == '/')
+                         {
+                             lastslash = tmpptr;
+                         }
+                     }
+                     if( lastslash != NULL )
+                     {
+                         savefilenameinzip = lastslash+1; // base filename follows last slash.
+                     }
+                 }
+
+                 /**/
+                err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
+                                 NULL,0,NULL,0,NULL /* comment*/,
+                                 (opt_compress_level != 0) ? Z_DEFLATED : 0,
+                                 opt_compress_level,0,
+                                 /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
+                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                 password,crcFile, zip64);
+
+                if (err != ZIP_OK)
+                    printf("error in opening %s in zipfile\n",filenameinzip);
+                else
+                {
+                    fin = FOPEN_FUNC(filenameinzip,"rb");
+                    if (fin==NULL)
+                    {
+                        err=ZIP_ERRNO;
+                        printf("error in opening %s for reading\n",filenameinzip);
+                    }
+                }
+
+                if (err == ZIP_OK)
+                    do
+                    {
+                        err = ZIP_OK;
+                        size_read = (int)fread(buf,1,size_buf,fin);
+                        if (size_read < size_buf)
+                            if (feof(fin)==0)
+                        {
+                            printf("error in reading %s\n",filenameinzip);
+                            err = ZIP_ERRNO;
+                        }
+
+                        if (size_read>0)
+                        {
+                            err = zipWriteInFileInZip (zf,buf,size_read);
+                            if (err<0)
+                            {
+                                printf("error in writing %s in the zipfile\n",
+                                                 filenameinzip);
+                            }
+
+                        }
+                    } while ((err == ZIP_OK) && (size_read>0));
+
+                if (fin)
+                    fclose(fin);
+
+                if (err<0)
+                    err=ZIP_ERRNO;
+                else
+                {
+                    err = zipCloseFileInZip(zf);
+                    if (err!=ZIP_OK)
+                        printf("error in closing %s in the zipfile\n",
+                                    filenameinzip);
+                }
+            }
+        }
+        errclose = zipClose(zf,NULL);
+        if (errclose != ZIP_OK)
+            printf("error in closing %s\n",filename_try);
+    }
+    else
+    {
+       do_help();
+    }
+
+    free(buf);
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.pc.in b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.pc.in
new file mode 100644
index 000000000..69b5b7fdc
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/minizip.pc.in
@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@/minizip
+
+Name: minizip
+Description: Minizip zip file manipulation library
+Requires:
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lminizip
+Libs.private: -lz
+Cflags: -I${includedir}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/mztools.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/mztools.c
new file mode 100644
index 000000000..96891c2e0
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/mztools.c
@@ -0,0 +1,291 @@
+/*
+  Additional tools for Minizip
+  Code: Xavier Roche '2004
+  License: Same as ZLIB (www.gzip.org)
+*/
+
+/* Code */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "zlib.h"
+#include "unzip.h"
+
+#define READ_8(adr)  ((unsigned char)*(adr))
+#define READ_16(adr) ( READ_8(adr) | (READ_8(adr+1) << 8) )
+#define READ_32(adr) ( READ_16(adr) | (READ_16((adr)+2) << 16) )
+
+#define WRITE_8(buff, n) do { \
+  *((unsigned char*)(buff)) = (unsigned char) ((n) & 0xff); \
+} while(0)
+#define WRITE_16(buff, n) do { \
+  WRITE_8((unsigned char*)(buff), n); \
+  WRITE_8(((unsigned char*)(buff)) + 1, (n) >> 8); \
+} while(0)
+#define WRITE_32(buff, n) do { \
+  WRITE_16((unsigned char*)(buff), (n) & 0xffff); \
+  WRITE_16((unsigned char*)(buff) + 2, (n) >> 16); \
+} while(0)
+
+extern int ZEXPORT unzRepair(file, fileOut, fileOutTmp, nRecovered, bytesRecovered)
+const char* file;
+const char* fileOut;
+const char* fileOutTmp;
+uLong* nRecovered;
+uLong* bytesRecovered;
+{
+  int err = Z_OK;
+  FILE* fpZip = fopen(file, "rb");
+  FILE* fpOut = fopen(fileOut, "wb");
+  FILE* fpOutCD = fopen(fileOutTmp, "wb");
+  if (fpZip != NULL &&  fpOut != NULL) {
+    int entries = 0;
+    uLong totalBytes = 0;
+    char header[30];
+    char filename[1024];
+    char extra[1024];
+    int offset = 0;
+    int offsetCD = 0;
+    while ( fread(header, 1, 30, fpZip) == 30 ) {
+      int currentOffset = offset;
+
+      /* File entry */
+      if (READ_32(header) == 0x04034b50) {
+        unsigned int version = READ_16(header + 4);
+        unsigned int gpflag = READ_16(header + 6);
+        unsigned int method = READ_16(header + 8);
+        unsigned int filetime = READ_16(header + 10);
+        unsigned int filedate = READ_16(header + 12);
+        unsigned int crc = READ_32(header + 14); /* crc */
+        unsigned int cpsize = READ_32(header + 18); /* compressed size */
+        unsigned int uncpsize = READ_32(header + 22); /* uncompressed sz */
+        unsigned int fnsize = READ_16(header + 26); /* file name length */
+        unsigned int extsize = READ_16(header + 28); /* extra field length */
+        filename[0] = extra[0] = '\0';
+
+        /* Header */
+        if (fwrite(header, 1, 30, fpOut) == 30) {
+          offset += 30;
+        } else {
+          err = Z_ERRNO;
+          break;
+        }
+
+        /* Filename */
+        if (fnsize > 0) {
+          if (fnsize < sizeof(filename)) {
+            if (fread(filename, 1, fnsize, fpZip) == fnsize) {
+                if (fwrite(filename, 1, fnsize, fpOut) == fnsize) {
+                offset += fnsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            } else {
+              err = Z_ERRNO;
+              break;
+            }
+          } else {
+            err = Z_ERRNO;
+            break;
+          }
+        } else {
+          err = Z_STREAM_ERROR;
+          break;
+        }
+
+        /* Extra field */
+        if (extsize > 0) {
+          if (extsize < sizeof(extra)) {
+            if (fread(extra, 1, extsize, fpZip) == extsize) {
+              if (fwrite(extra, 1, extsize, fpOut) == extsize) {
+                offset += extsize;
+                } else {
+                err = Z_ERRNO;
+                break;
+              }
+            } else {
+              err = Z_ERRNO;
+              break;
+            }
+          } else {
+            err = Z_ERRNO;
+            break;
+          }
+        }
+
+        /* Data */
+        {
+          int dataSize = cpsize;
+          if (dataSize == 0) {
+            dataSize = uncpsize;
+          }
+          if (dataSize > 0) {
+            char* data = malloc(dataSize);
+            if (data != NULL) {
+              if ((int)fread(data, 1, dataSize, fpZip) == dataSize) {
+                if ((int)fwrite(data, 1, dataSize, fpOut) == dataSize) {
+                  offset += dataSize;
+                  totalBytes += dataSize;
+                } else {
+                  err = Z_ERRNO;
+                }
+              } else {
+                err = Z_ERRNO;
+              }
+              free(data);
+              if (err != Z_OK) {
+                break;
+              }
+            } else {
+              err = Z_MEM_ERROR;
+              break;
+            }
+          }
+        }
+
+        /* Central directory entry */
+        {
+          char header[46];
+          char* comment = "";
+          int comsize = (int) strlen(comment);
+          WRITE_32(header, 0x02014b50);
+          WRITE_16(header + 4, version);
+          WRITE_16(header + 6, version);
+          WRITE_16(header + 8, gpflag);
+          WRITE_16(header + 10, method);
+          WRITE_16(header + 12, filetime);
+          WRITE_16(header + 14, filedate);
+          WRITE_32(header + 16, crc);
+          WRITE_32(header + 20, cpsize);
+          WRITE_32(header + 24, uncpsize);
+          WRITE_16(header + 28, fnsize);
+          WRITE_16(header + 30, extsize);
+          WRITE_16(header + 32, comsize);
+          WRITE_16(header + 34, 0);     /* disk # */
+          WRITE_16(header + 36, 0);     /* int attrb */
+          WRITE_32(header + 38, 0);     /* ext attrb */
+          WRITE_32(header + 42, currentOffset);
+          /* Header */
+          if (fwrite(header, 1, 46, fpOutCD) == 46) {
+            offsetCD += 46;
+
+            /* Filename */
+            if (fnsize > 0) {
+              if (fwrite(filename, 1, fnsize, fpOutCD) == fnsize) {
+                offsetCD += fnsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            } else {
+              err = Z_STREAM_ERROR;
+              break;
+            }
+
+            /* Extra field */
+            if (extsize > 0) {
+              if (fwrite(extra, 1, extsize, fpOutCD) == extsize) {
+                offsetCD += extsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            }
+
+            /* Comment field */
+            if (comsize > 0) {
+              if ((int)fwrite(comment, 1, comsize, fpOutCD) == comsize) {
+                offsetCD += comsize;
+              } else {
+                err = Z_ERRNO;
+                break;
+              }
+            }
+
+
+          } else {
+            err = Z_ERRNO;
+            break;
+          }
+        }
+
+        /* Success */
+        entries++;
+
+      } else {
+        break;
+      }
+    }
+
+    /* Final central directory  */
+    {
+      int entriesZip = entries;
+      char header[22];
+      char* comment = ""; // "ZIP File recovered by zlib/minizip/mztools";
+      int comsize = (int) strlen(comment);
+      if (entriesZip > 0xffff) {
+        entriesZip = 0xffff;
+      }
+      WRITE_32(header, 0x06054b50);
+      WRITE_16(header + 4, 0);    /* disk # */
+      WRITE_16(header + 6, 0);    /* disk # */
+      WRITE_16(header + 8, entriesZip);   /* hack */
+      WRITE_16(header + 10, entriesZip);  /* hack */
+      WRITE_32(header + 12, offsetCD);    /* size of CD */
+      WRITE_32(header + 16, offset);      /* offset to CD */
+      WRITE_16(header + 20, comsize);     /* comment */
+
+      /* Header */
+      if (fwrite(header, 1, 22, fpOutCD) == 22) {
+
+        /* Comment field */
+        if (comsize > 0) {
+          if ((int)fwrite(comment, 1, comsize, fpOutCD) != comsize) {
+            err = Z_ERRNO;
+          }
+        }
+
+      } else {
+        err = Z_ERRNO;
+      }
+    }
+
+    /* Final merge (file + central directory) */
+    fclose(fpOutCD);
+    if (err == Z_OK) {
+      fpOutCD = fopen(fileOutTmp, "rb");
+      if (fpOutCD != NULL) {
+        int nRead;
+        char buffer[8192];
+        while ( (nRead = (int)fread(buffer, 1, sizeof(buffer), fpOutCD)) > 0) {
+          if ((int)fwrite(buffer, 1, nRead, fpOut) != nRead) {
+            err = Z_ERRNO;
+            break;
+          }
+        }
+        fclose(fpOutCD);
+      }
+    }
+
+    /* Close */
+    fclose(fpZip);
+    fclose(fpOut);
+
+    /* Wipe temporary file */
+    (void)remove(fileOutTmp);
+
+    /* Number of recovered entries */
+    if (err == Z_OK) {
+      if (nRecovered != NULL) {
+        *nRecovered = entries;
+      }
+      if (bytesRecovered != NULL) {
+        *bytesRecovered = totalBytes;
+      }
+    }
+  } else {
+    err = Z_STREAM_ERROR;
+  }
+  return err;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/mztools.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/mztools.h
new file mode 100644
index 000000000..a49a426ec
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/mztools.h
@@ -0,0 +1,37 @@
+/*
+  Additional tools for Minizip
+  Code: Xavier Roche '2004
+  License: Same as ZLIB (www.gzip.org)
+*/
+
+#ifndef _zip_tools_H
+#define _zip_tools_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#include "unzip.h"
+
+/* Repair a ZIP file (missing central directory)
+   file: file to recover
+   fileOut: output file after recovery
+   fileOutTmp: temporary file name used for recovery
+*/
+extern int ZEXPORT unzRepair(const char* file,
+                             const char* fileOut,
+                             const char* fileOutTmp,
+                             uLong* nRecovered,
+                             uLong* bytesRecovered);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/unzip.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/unzip.c
new file mode 100644
index 000000000..bcfb9416e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/unzip.c
@@ -0,0 +1,2125 @@
+/* unzip.c -- IO for uncompress .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+
+  ------------------------------------------------------------------------------------
+  Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
+  compatibility with older software. The following is from the original crypt.c.
+  Code woven in by Terry Thorsen 1/2003.
+
+  Copyright (c) 1990-2000 Info-ZIP.  All rights reserved.
+
+  See the accompanying file LICENSE, version 2000-Apr-09 or later
+  (the contents of which are also included in zip.h) for terms of use.
+  If, for some reason, all these files are missing, the Info-ZIP license
+  also may be found at:  ftp://ftp.info-zip.org/pub/infozip/license.html
+
+        crypt.c (full version) by Info-ZIP.      Last revised:  [see crypt.h]
+
+  The encryption/decryption parts of this source code (as opposed to the
+  non-echoing password parts) were originally written in Europe.  The
+  whole source package can be freely distributed, including from the USA.
+  (Prior to January 2000, re-export from the US was a violation of US law.)
+
+        This encryption code is a direct transcription of the algorithm from
+  Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
+  file (appnote.txt) is distributed with the PKZIP program (even in the
+  version without encryption capabilities).
+
+        ------------------------------------------------------------------------------------
+
+        Changes in unzip.c
+
+        2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos
+  2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz*
+  2007-2008 - Even Rouault - Remove old C style function prototypes
+  2007-2008 - Even Rouault - Add unzip support for ZIP64
+
+        Copyright (C) 2007-2008 Even Rouault
+
+
+        Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again).
+  Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G
+                                should only read the compressed/uncompressed size from the Zip64 format if
+                                the size from normal header was 0xFFFFFFFF
+  Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant
+        Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required)
+                                Patch created by Daniel Borca
+
+  Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
+  Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson
+
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef NOUNCRYPT
+        #define NOUNCRYPT
+#endif
+
+#include "zlib.h"
+#include "unzip.h"
+
+#ifdef STDC
+#  include <stddef.h>
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+#ifdef NO_ERRNO_H
+    extern int errno;
+#else
+#   include <errno.h>
+#endif
+
+
+#ifndef local
+#  define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+
+#ifndef CASESENSITIVITYDEFAULT_NO
+#  if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
+#    define CASESENSITIVITYDEFAULT_NO
+#  endif
+#endif
+
+
+#ifndef UNZ_BUFSIZE
+#define UNZ_BUFSIZE (16384)
+#endif
+
+#ifndef UNZ_MAXFILENAMEINZIP
+#define UNZ_MAXFILENAMEINZIP (256)
+#endif
+
+#ifndef ALLOC
+# define ALLOC(size) (malloc(size))
+#endif
+#ifndef TRYFREE
+# define TRYFREE(p) {if (p) free(p);}
+#endif
+
+#define SIZECENTRALDIRITEM (0x2e)
+#define SIZEZIPLOCALHEADER (0x1e)
+
+
+const char unz_copyright[] =
+   " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+
+/* unz_file_info_interntal contain internal info about a file in zipfile*/
+typedef struct unz_file_info64_internal_s
+{
+    ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */
+} unz_file_info64_internal;
+
+
+/* file_in_zip_read_info_s contain internal information about a file in zipfile,
+    when reading and decompress it */
+typedef struct
+{
+    char  *read_buffer;         /* internal buffer for compressed data */
+    z_stream stream;            /* zLib stream structure for inflate */
+
+#ifdef HAVE_BZIP2
+    bz_stream bstream;          /* bzLib stream structure for bziped */
+#endif
+
+    ZPOS64_T pos_in_zipfile;       /* position in byte on the zipfile, for fseek*/
+    uLong stream_initialised;   /* flag set if stream structure is initialised*/
+
+    ZPOS64_T offset_local_extrafield;/* offset of the local extra field */
+    uInt  size_local_extrafield;/* size of the local extra field */
+    ZPOS64_T pos_local_extrafield;   /* position in the local extra field in read*/
+    ZPOS64_T total_out_64;
+
+    uLong crc32;                /* crc32 of all data uncompressed */
+    uLong crc32_wait;           /* crc32 we must obtain after decompress all */
+    ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */
+    ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/
+    zlib_filefunc64_32_def z_filefunc;
+    voidpf filestream;        /* io structore of the zipfile */
+    uLong compression_method;   /* compression method (0==store) */
+    ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+    int   raw;
+} file_in_zip64_read_info_s;
+
+
+/* unz64_s contain internal information about the zipfile
+*/
+typedef struct
+{
+    zlib_filefunc64_32_def z_filefunc;
+    int is64bitOpenFunction;
+    voidpf filestream;        /* io structore of the zipfile */
+    unz_global_info64 gi;       /* public global information */
+    ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+    ZPOS64_T num_file;             /* number of the current file in the zipfile*/
+    ZPOS64_T pos_in_central_dir;   /* pos of the current file in the central dir*/
+    ZPOS64_T current_file_ok;      /* flag about the usability of the current file*/
+    ZPOS64_T central_pos;          /* position of the beginning of the central dir*/
+
+    ZPOS64_T size_central_dir;     /* size of the central directory  */
+    ZPOS64_T offset_central_dir;   /* offset of start of central directory with
+                                   respect to the starting disk number */
+
+    unz_file_info64 cur_file_info; /* public info about the current file in zip*/
+    unz_file_info64_internal cur_file_info_internal; /* private info about it*/
+    file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current
+                                        file if we are decompressing it */
+    int encrypted;
+
+    int isZip64;
+
+#    ifndef NOUNCRYPT
+    unsigned long keys[3];     /* keys defining the pseudo-random sequence */
+    const z_crc_t* pcrc_32_tab;
+#    endif
+} unz64_s;
+
+
+#ifndef NOUNCRYPT
+#include "crypt.h"
+#endif
+
+/* ===========================================================================
+     Read a byte from a gz_stream; update next_in and avail_in. Return EOF
+   for end of file.
+   IN assertion: the stream s has been successfully opened for reading.
+*/
+
+
+local int unz64local_getByte OF((
+    const zlib_filefunc64_32_def* pzlib_filefunc_def,
+    voidpf filestream,
+    int *pi));
+
+local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)
+{
+    unsigned char c;
+    int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
+    if (err==1)
+    {
+        *pi = (int)c;
+        return UNZ_OK;
+    }
+    else
+    {
+        if (ZERROR64(*pzlib_filefunc_def,filestream))
+            return UNZ_ERRNO;
+        else
+            return UNZ_EOF;
+    }
+}
+
+
+/* ===========================================================================
+   Reads a long in LSB order from the given gz_stream. Sets
+*/
+local int unz64local_getShort OF((
+    const zlib_filefunc64_32_def* pzlib_filefunc_def,
+    voidpf filestream,
+    uLong *pX));
+
+local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                             voidpf filestream,
+                             uLong *pX)
+{
+    uLong x ;
+    int i = 0;
+    int err;
+
+    err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (uLong)i;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((uLong)i)<<8;
+
+    if (err==UNZ_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+local int unz64local_getLong OF((
+    const zlib_filefunc64_32_def* pzlib_filefunc_def,
+    voidpf filestream,
+    uLong *pX));
+
+local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                            voidpf filestream,
+                            uLong *pX)
+{
+    uLong x ;
+    int i = 0;
+    int err;
+
+    err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (uLong)i;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((uLong)i)<<8;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((uLong)i)<<16;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<24;
+
+    if (err==UNZ_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+local int unz64local_getLong64 OF((
+    const zlib_filefunc64_32_def* pzlib_filefunc_def,
+    voidpf filestream,
+    ZPOS64_T *pX));
+
+
+local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                            voidpf filestream,
+                            ZPOS64_T *pX)
+{
+    ZPOS64_T x ;
+    int i = 0;
+    int err;
+
+    err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (ZPOS64_T)i;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<8;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<16;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<24;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<32;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<40;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<48;
+
+    if (err==UNZ_OK)
+        err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x |= ((ZPOS64_T)i)<<56;
+
+    if (err==UNZ_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+/* My own strcmpi / strcasecmp */
+local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2)
+{
+    for (;;)
+    {
+        char c1=*(fileName1++);
+        char c2=*(fileName2++);
+        if ((c1>='a') && (c1<='z'))
+            c1 -= 0x20;
+        if ((c2>='a') && (c2<='z'))
+            c2 -= 0x20;
+        if (c1=='\0')
+            return ((c2=='\0') ? 0 : -1);
+        if (c2=='\0')
+            return 1;
+        if (c1<c2)
+            return -1;
+        if (c1>c2)
+            return 1;
+    }
+}
+
+
+#ifdef  CASESENSITIVITYDEFAULT_NO
+#define CASESENSITIVITYDEFAULTVALUE 2
+#else
+#define CASESENSITIVITYDEFAULTVALUE 1
+#endif
+
+#ifndef STRCMPCASENOSENTIVEFUNCTION
+#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
+#endif
+
+/*
+   Compare two filename (fileName1,fileName2).
+   If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
+   If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
+                                                                or strcasecmp)
+   If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
+        (like 1 on Unix, 2 on Windows)
+
+*/
+extern int ZEXPORT unzStringFileNameCompare (const char*  fileName1,
+                                                 const char*  fileName2,
+                                                 int iCaseSensitivity)
+
+{
+    if (iCaseSensitivity==0)
+        iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
+
+    if (iCaseSensitivity==1)
+        return strcmp(fileName1,fileName2);
+
+    return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
+}
+
+#ifndef BUFREADCOMMENT
+#define BUFREADCOMMENT (0x400)
+#endif
+
+/*
+  Locate the Central directory of a zipfile (at the end, just before
+    the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
+local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
+{
+    unsigned char* buf;
+    ZPOS64_T uSizeFile;
+    ZPOS64_T uBackRead;
+    ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+    ZPOS64_T uPosFound=0;
+
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+        return 0;
+
+
+    uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+    if (uMaxBack>uSizeFile)
+        uMaxBack = uSizeFile;
+
+    buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+    if (buf==NULL)
+        return 0;
+
+    uBackRead = 4;
+    while (uBackRead<uMaxBack)
+    {
+        uLong uReadSize;
+        ZPOS64_T uReadPos ;
+        int i;
+        if (uBackRead+BUFREADCOMMENT>uMaxBack)
+            uBackRead = uMaxBack;
+        else
+            uBackRead+=BUFREADCOMMENT;
+        uReadPos = uSizeFile-uBackRead ;
+
+        uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+                     (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+        if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            break;
+
+        if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+            break;
+
+        for (i=(int)uReadSize-3; (i--)>0;)
+            if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+                ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+            {
+                uPosFound = uReadPos+i;
+                break;
+            }
+
+        if (uPosFound!=0)
+            break;
+    }
+    TRYFREE(buf);
+    return uPosFound;
+}
+
+
+/*
+  Locate the Central directory 64 of a zipfile (at the end, just before
+    the global comment)
+*/
+local ZPOS64_T unz64local_SearchCentralDir64 OF((
+    const zlib_filefunc64_32_def* pzlib_filefunc_def,
+    voidpf filestream));
+
+local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def,
+                                      voidpf filestream)
+{
+    unsigned char* buf;
+    ZPOS64_T uSizeFile;
+    ZPOS64_T uBackRead;
+    ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+    ZPOS64_T uPosFound=0;
+    uLong uL;
+                ZPOS64_T relativeOffset;
+
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+        return 0;
+
+
+    uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+    if (uMaxBack>uSizeFile)
+        uMaxBack = uSizeFile;
+
+    buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+    if (buf==NULL)
+        return 0;
+
+    uBackRead = 4;
+    while (uBackRead<uMaxBack)
+    {
+        uLong uReadSize;
+        ZPOS64_T uReadPos;
+        int i;
+        if (uBackRead+BUFREADCOMMENT>uMaxBack)
+            uBackRead = uMaxBack;
+        else
+            uBackRead+=BUFREADCOMMENT;
+        uReadPos = uSizeFile-uBackRead ;
+
+        uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+                     (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+        if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            break;
+
+        if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+            break;
+
+        for (i=(int)uReadSize-3; (i--)>0;)
+            if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+                ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+            {
+                uPosFound = uReadPos+i;
+                break;
+            }
+
+        if (uPosFound!=0)
+            break;
+    }
+    TRYFREE(buf);
+    if (uPosFound == 0)
+        return 0;
+
+    /* Zip64 end of central directory locator */
+    if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return 0;
+
+    /* the signature, already checked */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return 0;
+
+    /* number of the disk with the start of the zip64 end of  central directory */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return 0;
+    if (uL != 0)
+        return 0;
+
+    /* relative offset of the zip64 end of central directory record */
+    if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
+        return 0;
+
+    /* total number of disks */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return 0;
+    if (uL != 1)
+        return 0;
+
+    /* Goto end of central directory record */
+    if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return 0;
+
+     /* the signature */
+    if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
+        return 0;
+
+    if (uL != 0x06064b50)
+        return 0;
+
+    return relativeOffset;
+}
+
+/*
+  Open a Zip file. path contain the full pathname (by example,
+     on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
+     "zlib/zlib114.zip".
+     If the zipfile cannot be opened (file doesn't exist or in not valid), the
+       return value is NULL.
+     Else, the return value is a unzFile Handle, usable with other function
+       of this unzip package.
+*/
+local unzFile unzOpenInternal (const void *path,
+                               zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
+                               int is64bitOpenFunction)
+{
+    unz64_s us;
+    unz64_s *s;
+    ZPOS64_T central_pos;
+    uLong   uL;
+
+    uLong number_disk;          /* number of the current dist, used for
+                                   spaning ZIP, unsupported, always 0*/
+    uLong number_disk_with_CD;  /* number the the disk with central dir, used
+                                   for spaning ZIP, unsupported, always 0*/
+    ZPOS64_T number_entry_CD;      /* total number of entries in
+                                   the central dir
+                                   (same than number_entry on nospan) */
+
+    int err=UNZ_OK;
+
+    if (unz_copyright[0]!=' ')
+        return NULL;
+
+    us.z_filefunc.zseek32_file = NULL;
+    us.z_filefunc.ztell32_file = NULL;
+    if (pzlib_filefunc64_32_def==NULL)
+        fill_fopen64_filefunc(&us.z_filefunc.zfile_func64);
+    else
+        us.z_filefunc = *pzlib_filefunc64_32_def;
+    us.is64bitOpenFunction = is64bitOpenFunction;
+
+
+
+    us.filestream = ZOPEN64(us.z_filefunc,
+                                                 path,
+                                                 ZLIB_FILEFUNC_MODE_READ |
+                                                 ZLIB_FILEFUNC_MODE_EXISTING);
+    if (us.filestream==NULL)
+        return NULL;
+
+    central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
+    if (central_pos)
+    {
+        uLong uS;
+        ZPOS64_T uL64;
+
+        us.isZip64 = 1;
+
+        if (ZSEEK64(us.z_filefunc, us.filestream,
+                                      central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        err=UNZ_ERRNO;
+
+        /* the signature, already checked */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* size of zip64 end of central directory record */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* version made by */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* version needed to extract */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of this disk */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of the disk with the start of the central directory */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* total number of entries in the central directory on this disk */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* total number of entries in the central directory */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        if ((number_entry_CD!=us.gi.number_entry) ||
+            (number_disk_with_CD!=0) ||
+            (number_disk!=0))
+            err=UNZ_BADZIPFILE;
+
+        /* size of the central directory */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* offset of start of central directory with respect to the
+          starting disk number */
+        if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        us.gi.size_comment = 0;
+    }
+    else
+    {
+        central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
+        if (central_pos==0)
+            err=UNZ_ERRNO;
+
+        us.isZip64 = 0;
+
+        if (ZSEEK64(us.z_filefunc, us.filestream,
+                                        central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            err=UNZ_ERRNO;
+
+        /* the signature, already checked */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of this disk */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* number of the disk with the start of the central directory */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+            err=UNZ_ERRNO;
+
+        /* total number of entries in the central dir on this disk */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        us.gi.number_entry = uL;
+
+        /* total number of entries in the central dir */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        number_entry_CD = uL;
+
+        if ((number_entry_CD!=us.gi.number_entry) ||
+            (number_disk_with_CD!=0) ||
+            (number_disk!=0))
+            err=UNZ_BADZIPFILE;
+
+        /* size of the central directory */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        us.size_central_dir = uL;
+
+        /* offset of start of central directory with respect to the
+            starting disk number */
+        if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+            err=UNZ_ERRNO;
+        us.offset_central_dir = uL;
+
+        /* zipfile comment length */
+        if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
+            err=UNZ_ERRNO;
+    }
+
+    if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
+        (err==UNZ_OK))
+        err=UNZ_BADZIPFILE;
+
+    if (err!=UNZ_OK)
+    {
+        ZCLOSE64(us.z_filefunc, us.filestream);
+        return NULL;
+    }
+
+    us.byte_before_the_zipfile = central_pos -
+                            (us.offset_central_dir+us.size_central_dir);
+    us.central_pos = central_pos;
+    us.pfile_in_zip_read = NULL;
+    us.encrypted = 0;
+
+
+    s=(unz64_s*)ALLOC(sizeof(unz64_s));
+    if( s != NULL)
+    {
+        *s=us;
+        unzGoToFirstFile((unzFile)s);
+    }
+    return (unzFile)s;
+}
+
+
+extern unzFile ZEXPORT unzOpen2 (const char *path,
+                                        zlib_filefunc_def* pzlib_filefunc32_def)
+{
+    if (pzlib_filefunc32_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+        return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0);
+    }
+    else
+        return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen2_64 (const void *path,
+                                     zlib_filefunc64_def* pzlib_filefunc_def)
+{
+    if (pzlib_filefunc_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+        zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+        zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+        return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1);
+    }
+    else
+        return unzOpenInternal(path, NULL, 1);
+}
+
+extern unzFile ZEXPORT unzOpen (const char *path)
+{
+    return unzOpenInternal(path, NULL, 0);
+}
+
+extern unzFile ZEXPORT unzOpen64 (const void *path)
+{
+    return unzOpenInternal(path, NULL, 1);
+}
+
+/*
+  Close a ZipFile opened with unzOpen.
+  If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
+  return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzClose (unzFile file)
+{
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    if (s->pfile_in_zip_read!=NULL)
+        unzCloseCurrentFile(file);
+
+    ZCLOSE64(s->z_filefunc, s->filestream);
+    TRYFREE(s);
+    return UNZ_OK;
+}
+
+
+/*
+  Write info about the ZipFile in the *pglobal_info structure.
+  No preparation of the structure is needed
+  return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info)
+{
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    *pglobal_info=s->gi;
+    return UNZ_OK;
+}
+
+extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32)
+{
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    /* to do : check if number_entry is not truncated */
+    pglobal_info32->number_entry = (uLong)s->gi.number_entry;
+    pglobal_info32->size_comment = s->gi.size_comment;
+    return UNZ_OK;
+}
+/*
+   Translate date/time from Dos format to tm_unz (readable more easilty)
+*/
+local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm)
+{
+    ZPOS64_T uDate;
+    uDate = (ZPOS64_T)(ulDosDate>>16);
+    ptm->tm_mday = (uInt)(uDate&0x1f) ;
+    ptm->tm_mon =  (uInt)((((uDate)&0x1E0)/0x20)-1) ;
+    ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
+
+    ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
+    ptm->tm_min =  (uInt) ((ulDosDate&0x7E0)/0x20) ;
+    ptm->tm_sec =  (uInt) (2*(ulDosDate&0x1f)) ;
+}
+
+/*
+  Get Info about the current file in the zipfile, with internal only info
+*/
+local int unz64local_GetCurrentFileInfoInternal OF((unzFile file,
+                                                  unz_file_info64 *pfile_info,
+                                                  unz_file_info64_internal
+                                                  *pfile_info_internal,
+                                                  char *szFileName,
+                                                  uLong fileNameBufferSize,
+                                                  void *extraField,
+                                                  uLong extraFieldBufferSize,
+                                                  char *szComment,
+                                                  uLong commentBufferSize));
+
+local int unz64local_GetCurrentFileInfoInternal (unzFile file,
+                                                  unz_file_info64 *pfile_info,
+                                                  unz_file_info64_internal
+                                                  *pfile_info_internal,
+                                                  char *szFileName,
+                                                  uLong fileNameBufferSize,
+                                                  void *extraField,
+                                                  uLong extraFieldBufferSize,
+                                                  char *szComment,
+                                                  uLong commentBufferSize)
+{
+    unz64_s* s;
+    unz_file_info64 file_info;
+    unz_file_info64_internal file_info_internal;
+    int err=UNZ_OK;
+    uLong uMagic;
+    long lSeek=0;
+    uLong uL;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (ZSEEK64(s->z_filefunc, s->filestream,
+              s->pos_in_central_dir+s->byte_before_the_zipfile,
+              ZLIB_FILEFUNC_SEEK_SET)!=0)
+        err=UNZ_ERRNO;
+
+
+    /* we check the magic */
+    if (err==UNZ_OK)
+    {
+        if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+            err=UNZ_ERRNO;
+        else if (uMagic!=0x02014b50)
+            err=UNZ_BADZIPFILE;
+    }
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+        err=UNZ_ERRNO;
+    file_info.compressed_size = uL;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+        err=UNZ_ERRNO;
+    file_info.uncompressed_size = uL;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+                // relative offset of local header
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+        err=UNZ_ERRNO;
+    file_info_internal.offset_curfile = uL;
+
+    lSeek+=file_info.size_filename;
+    if ((err==UNZ_OK) && (szFileName!=NULL))
+    {
+        uLong uSizeRead ;
+        if (file_info.size_filename<fileNameBufferSize)
+        {
+            *(szFileName+file_info.size_filename)='\0';
+            uSizeRead = file_info.size_filename;
+        }
+        else
+            uSizeRead = fileNameBufferSize;
+
+        if ((file_info.size_filename>0) && (fileNameBufferSize>0))
+            if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
+                err=UNZ_ERRNO;
+        lSeek -= uSizeRead;
+    }
+
+    // Read extrafield
+    if ((err==UNZ_OK) && (extraField!=NULL))
+    {
+        ZPOS64_T uSizeRead ;
+        if (file_info.size_file_extra<extraFieldBufferSize)
+            uSizeRead = file_info.size_file_extra;
+        else
+            uSizeRead = extraFieldBufferSize;
+
+        if (lSeek!=0)
+        {
+            if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+                lSeek=0;
+            else
+                err=UNZ_ERRNO;
+        }
+
+        if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
+            if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead)
+                err=UNZ_ERRNO;
+
+        lSeek += file_info.size_file_extra - (uLong)uSizeRead;
+    }
+    else
+        lSeek += file_info.size_file_extra;
+
+
+    if ((err==UNZ_OK) && (file_info.size_file_extra != 0))
+    {
+                                uLong acc = 0;
+
+        // since lSeek now points to after the extra field we need to move back
+        lSeek -= file_info.size_file_extra;
+
+        if (lSeek!=0)
+        {
+            if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+                lSeek=0;
+            else
+                err=UNZ_ERRNO;
+        }
+
+        while(acc < file_info.size_file_extra)
+        {
+            uLong headerId;
+                                                uLong dataSize;
+
+            if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK)
+                err=UNZ_ERRNO;
+
+            if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK)
+                err=UNZ_ERRNO;
+
+            /* ZIP64 extra fields */
+            if (headerId == 0x0001)
+            {
+                                                        uLong uL;
+
+                                                                if(file_info.uncompressed_size == MAXU32)
+                                                                {
+                                                                        if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
+                                                                                        err=UNZ_ERRNO;
+                                                                }
+
+                                                                if(file_info.compressed_size == MAXU32)
+                                                                {
+                                                                        if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
+                                                                                  err=UNZ_ERRNO;
+                                                                }
+
+                                                                if(file_info_internal.offset_curfile == MAXU32)
+                                                                {
+                                                                        /* Relative Header offset */
+                                                                        if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
+                                                                                err=UNZ_ERRNO;
+                                                                }
+
+                                                                if(file_info.disk_num_start == MAXU32)
+                                                                {
+                                                                        /* Disk Start Number */
+                                                                        if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK)
+                                                                                err=UNZ_ERRNO;
+                                                                }
+
+            }
+            else
+            {
+                if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
+                    err=UNZ_ERRNO;
+            }
+
+            acc += 2 + 2 + dataSize;
+        }
+    }
+
+    if ((err==UNZ_OK) && (szComment!=NULL))
+    {
+        uLong uSizeRead ;
+        if (file_info.size_file_comment<commentBufferSize)
+        {
+            *(szComment+file_info.size_file_comment)='\0';
+            uSizeRead = file_info.size_file_comment;
+        }
+        else
+            uSizeRead = commentBufferSize;
+
+        if (lSeek!=0)
+        {
+            if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+                lSeek=0;
+            else
+                err=UNZ_ERRNO;
+        }
+
+        if ((file_info.size_file_comment>0) && (commentBufferSize>0))
+            if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
+                err=UNZ_ERRNO;
+        lSeek+=file_info.size_file_comment - uSizeRead;
+    }
+    else
+        lSeek+=file_info.size_file_comment;
+
+
+    if ((err==UNZ_OK) && (pfile_info!=NULL))
+        *pfile_info=file_info;
+
+    if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
+        *pfile_info_internal=file_info_internal;
+
+    return err;
+}
+
+
+
+/*
+  Write info about the ZipFile in the *pglobal_info structure.
+  No preparation of the structure is needed
+  return UNZ_OK if there is no problem.
+*/
+extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file,
+                                          unz_file_info64 * pfile_info,
+                                          char * szFileName, uLong fileNameBufferSize,
+                                          void *extraField, uLong extraFieldBufferSize,
+                                          char* szComment,  uLong commentBufferSize)
+{
+    return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL,
+                                                szFileName,fileNameBufferSize,
+                                                extraField,extraFieldBufferSize,
+                                                szComment,commentBufferSize);
+}
+
+extern int ZEXPORT unzGetCurrentFileInfo (unzFile file,
+                                          unz_file_info * pfile_info,
+                                          char * szFileName, uLong fileNameBufferSize,
+                                          void *extraField, uLong extraFieldBufferSize,
+                                          char* szComment,  uLong commentBufferSize)
+{
+    int err;
+    unz_file_info64 file_info64;
+    err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
+                                                szFileName,fileNameBufferSize,
+                                                extraField,extraFieldBufferSize,
+                                                szComment,commentBufferSize);
+    if ((err==UNZ_OK) && (pfile_info != NULL))
+    {
+        pfile_info->version = file_info64.version;
+        pfile_info->version_needed = file_info64.version_needed;
+        pfile_info->flag = file_info64.flag;
+        pfile_info->compression_method = file_info64.compression_method;
+        pfile_info->dosDate = file_info64.dosDate;
+        pfile_info->crc = file_info64.crc;
+
+        pfile_info->size_filename = file_info64.size_filename;
+        pfile_info->size_file_extra = file_info64.size_file_extra;
+        pfile_info->size_file_comment = file_info64.size_file_comment;
+
+        pfile_info->disk_num_start = file_info64.disk_num_start;
+        pfile_info->internal_fa = file_info64.internal_fa;
+        pfile_info->external_fa = file_info64.external_fa;
+
+        pfile_info->tmu_date = file_info64.tmu_date,
+
+
+        pfile_info->compressed_size = (uLong)file_info64.compressed_size;
+        pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size;
+
+    }
+    return err;
+}
+/*
+  Set the current file of the zipfile to the first file.
+  return UNZ_OK if there is no problem
+*/
+extern int ZEXPORT unzGoToFirstFile (unzFile file)
+{
+    int err=UNZ_OK;
+    unz64_s* s;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    s->pos_in_central_dir=s->offset_central_dir;
+    s->num_file=0;
+    err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                             &s->cur_file_info_internal,
+                                             NULL,0,NULL,0,NULL,0);
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+/*
+  Set the current file of the zipfile to the next file.
+  return UNZ_OK if there is no problem
+  return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+extern int ZEXPORT unzGoToNextFile (unzFile  file)
+{
+    unz64_s* s;
+    int err;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_END_OF_LIST_OF_FILE;
+    if (s->gi.number_entry != 0xffff)    /* 2^16 files overflow hack */
+      if (s->num_file+1==s->gi.number_entry)
+        return UNZ_END_OF_LIST_OF_FILE;
+
+    s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
+            s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
+    s->num_file++;
+    err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                               &s->cur_file_info_internal,
+                                               NULL,0,NULL,0,NULL,0);
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+
+/*
+  Try locate the file szFileName in the zipfile.
+  For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+  return value :
+  UNZ_OK if the file is found. It becomes the current file.
+  UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity)
+{
+    unz64_s* s;
+    int err;
+
+    /* We remember the 'current' position in the file so that we can jump
+     * back there if we fail.
+     */
+    unz_file_info64 cur_file_infoSaved;
+    unz_file_info64_internal cur_file_info_internalSaved;
+    ZPOS64_T num_fileSaved;
+    ZPOS64_T pos_in_central_dirSaved;
+
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+
+    if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
+        return UNZ_PARAMERROR;
+
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_END_OF_LIST_OF_FILE;
+
+    /* Save the current state */
+    num_fileSaved = s->num_file;
+    pos_in_central_dirSaved = s->pos_in_central_dir;
+    cur_file_infoSaved = s->cur_file_info;
+    cur_file_info_internalSaved = s->cur_file_info_internal;
+
+    err = unzGoToFirstFile(file);
+
+    while (err == UNZ_OK)
+    {
+        char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
+        err = unzGetCurrentFileInfo64(file,NULL,
+                                    szCurrentFileName,sizeof(szCurrentFileName)-1,
+                                    NULL,0,NULL,0);
+        if (err == UNZ_OK)
+        {
+            if (unzStringFileNameCompare(szCurrentFileName,
+                                            szFileName,iCaseSensitivity)==0)
+                return UNZ_OK;
+            err = unzGoToNextFile(file);
+        }
+    }
+
+    /* We failed, so restore the state of the 'current file' to where we
+     * were.
+     */
+    s->num_file = num_fileSaved ;
+    s->pos_in_central_dir = pos_in_central_dirSaved ;
+    s->cur_file_info = cur_file_infoSaved;
+    s->cur_file_info_internal = cur_file_info_internalSaved;
+    return err;
+}
+
+
+/*
+///////////////////////////////////////////
+// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net)
+// I need random access
+//
+// Further optimization could be realized by adding an ability
+// to cache the directory in memory. The goal being a single
+// comprehensive file read to put the file I need in a memory.
+*/
+
+/*
+typedef struct unz_file_pos_s
+{
+    ZPOS64_T pos_in_zip_directory;   // offset in file
+    ZPOS64_T num_of_file;            // # of file
+} unz_file_pos;
+*/
+
+extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos*  file_pos)
+{
+    unz64_s* s;
+
+    if (file==NULL || file_pos==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_END_OF_LIST_OF_FILE;
+
+    file_pos->pos_in_zip_directory  = s->pos_in_central_dir;
+    file_pos->num_of_file           = s->num_file;
+
+    return UNZ_OK;
+}
+
+extern int ZEXPORT unzGetFilePos(
+    unzFile file,
+    unz_file_pos* file_pos)
+{
+    unz64_file_pos file_pos64;
+    int err = unzGetFilePos64(file,&file_pos64);
+    if (err==UNZ_OK)
+    {
+        file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory;
+        file_pos->num_of_file = (uLong)file_pos64.num_of_file;
+    }
+    return err;
+}
+
+extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos)
+{
+    unz64_s* s;
+    int err;
+
+    if (file==NULL || file_pos==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    /* jump to the right spot */
+    s->pos_in_central_dir = file_pos->pos_in_zip_directory;
+    s->num_file           = file_pos->num_of_file;
+
+    /* set the current file */
+    err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                               &s->cur_file_info_internal,
+                                               NULL,0,NULL,0,NULL,0);
+    /* return results */
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+extern int ZEXPORT unzGoToFilePos(
+    unzFile file,
+    unz_file_pos* file_pos)
+{
+    unz64_file_pos file_pos64;
+    if (file_pos == NULL)
+        return UNZ_PARAMERROR;
+
+    file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory;
+    file_pos64.num_of_file = file_pos->num_of_file;
+    return unzGoToFilePos64(file,&file_pos64);
+}
+
+/*
+// Unzip Helper Functions - should be here?
+///////////////////////////////////////////
+*/
+
+/*
+  Read the local header of the current zipfile
+  Check the coherency of the local header and info in the end of central
+        directory about this file
+  store in *piSizeVar the size of extra info in local header
+        (filename and size of extra field data)
+*/
+local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar,
+                                                    ZPOS64_T * poffset_local_extrafield,
+                                                    uInt  * psize_local_extrafield)
+{
+    uLong uMagic,uData,uFlags;
+    uLong size_filename;
+    uLong size_extra_field;
+    int err=UNZ_OK;
+
+    *piSizeVar = 0;
+    *poffset_local_extrafield = 0;
+    *psize_local_extrafield = 0;
+
+    if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
+                                s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return UNZ_ERRNO;
+
+
+    if (err==UNZ_OK)
+    {
+        if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+            err=UNZ_ERRNO;
+        else if (uMagic!=0x04034b50)
+            err=UNZ_BADZIPFILE;
+    }
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+        err=UNZ_ERRNO;
+/*
+    else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
+        err=UNZ_BADZIPFILE;
+*/
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
+        err=UNZ_ERRNO;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+        err=UNZ_ERRNO;
+    else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
+        err=UNZ_BADZIPFILE;
+
+    if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+                         (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
+                         (s->cur_file_info.compression_method!=Z_DEFLATED))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
+        err=UNZ_ERRNO;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
+        err=UNZ_ERRNO;
+    else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
+        err=UNZ_ERRNO;
+    else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
+        err=UNZ_ERRNO;
+    else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0))
+        err=UNZ_BADZIPFILE;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
+        err=UNZ_ERRNO;
+    else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
+        err=UNZ_BADZIPFILE;
+
+    *piSizeVar += (uInt)size_filename;
+
+    if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
+        err=UNZ_ERRNO;
+    *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
+                                    SIZEZIPLOCALHEADER + size_filename;
+    *psize_local_extrafield = (uInt)size_extra_field;
+
+    *piSizeVar += (uInt)size_extra_field;
+
+    return err;
+}
+
+/*
+  Open for reading data the current file in the zipfile.
+  If there is no error and the file is opened, the return value is UNZ_OK.
+*/
+extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
+                                            int* level, int raw, const char* password)
+{
+    int err=UNZ_OK;
+    uInt iSizeVar;
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    ZPOS64_T offset_local_extrafield;  /* offset of the local extra field */
+    uInt  size_local_extrafield;    /* size of the local extra field */
+#    ifndef NOUNCRYPT
+    char source[12];
+#    else
+    if (password != NULL)
+        return UNZ_PARAMERROR;
+#    endif
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+        return UNZ_PARAMERROR;
+
+    if (s->pfile_in_zip_read != NULL)
+        unzCloseCurrentFile(file);
+
+    if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
+        return UNZ_BADZIPFILE;
+
+    pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s));
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_INTERNALERROR;
+
+    pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
+    pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
+    pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
+    pfile_in_zip_read_info->pos_local_extrafield=0;
+    pfile_in_zip_read_info->raw=raw;
+
+    if (pfile_in_zip_read_info->read_buffer==NULL)
+    {
+        TRYFREE(pfile_in_zip_read_info);
+        return UNZ_INTERNALERROR;
+    }
+
+    pfile_in_zip_read_info->stream_initialised=0;
+
+    if (method!=NULL)
+        *method = (int)s->cur_file_info.compression_method;
+
+    if (level!=NULL)
+    {
+        *level = 6;
+        switch (s->cur_file_info.flag & 0x06)
+        {
+          case 6 : *level = 1; break;
+          case 4 : *level = 2; break;
+          case 2 : *level = 9; break;
+        }
+    }
+
+    if ((s->cur_file_info.compression_method!=0) &&
+/* #ifdef HAVE_BZIP2 */
+        (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
+/* #endif */
+        (s->cur_file_info.compression_method!=Z_DEFLATED))
+
+        err=UNZ_BADZIPFILE;
+
+    pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
+    pfile_in_zip_read_info->crc32=0;
+    pfile_in_zip_read_info->total_out_64=0;
+    pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method;
+    pfile_in_zip_read_info->filestream=s->filestream;
+    pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
+    pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
+
+    pfile_in_zip_read_info->stream.total_out = 0;
+
+    if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw))
+    {
+#ifdef HAVE_BZIP2
+      pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0;
+      pfile_in_zip_read_info->bstream.bzfree = (free_func)0;
+      pfile_in_zip_read_info->bstream.opaque = (voidpf)0;
+      pfile_in_zip_read_info->bstream.state = (voidpf)0;
+
+      pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+      pfile_in_zip_read_info->stream.zfree = (free_func)0;
+      pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+      pfile_in_zip_read_info->stream.next_in = (voidpf)0;
+      pfile_in_zip_read_info->stream.avail_in = 0;
+
+      err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0);
+      if (err == Z_OK)
+        pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED;
+      else
+      {
+        TRYFREE(pfile_in_zip_read_info);
+        return err;
+      }
+#else
+      pfile_in_zip_read_info->raw=1;
+#endif
+    }
+    else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw))
+    {
+      pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+      pfile_in_zip_read_info->stream.zfree = (free_func)0;
+      pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+      pfile_in_zip_read_info->stream.next_in = 0;
+      pfile_in_zip_read_info->stream.avail_in = 0;
+
+      err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
+      if (err == Z_OK)
+        pfile_in_zip_read_info->stream_initialised=Z_DEFLATED;
+      else
+      {
+        TRYFREE(pfile_in_zip_read_info);
+        return err;
+      }
+        /* windowBits is passed < 0 to tell that there is no zlib header.
+         * Note that in this case inflate *requires* an extra "dummy" byte
+         * after the compressed stream in order to complete decompression and
+         * return Z_STREAM_END.
+         * In unzip, i don't wait absolutely Z_STREAM_END because I known the
+         * size of both compressed and uncompressed data
+         */
+    }
+    pfile_in_zip_read_info->rest_read_compressed =
+            s->cur_file_info.compressed_size ;
+    pfile_in_zip_read_info->rest_read_uncompressed =
+            s->cur_file_info.uncompressed_size ;
+
+
+    pfile_in_zip_read_info->pos_in_zipfile =
+            s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +
+              iSizeVar;
+
+    pfile_in_zip_read_info->stream.avail_in = (uInt)0;
+
+    s->pfile_in_zip_read = pfile_in_zip_read_info;
+                s->encrypted = 0;
+
+#    ifndef NOUNCRYPT
+    if (password != NULL)
+    {
+        int i;
+        s->pcrc_32_tab = get_crc_table();
+        init_keys(password,s->keys,s->pcrc_32_tab);
+        if (ZSEEK64(s->z_filefunc, s->filestream,
+                  s->pfile_in_zip_read->pos_in_zipfile +
+                     s->pfile_in_zip_read->byte_before_the_zipfile,
+                  SEEK_SET)!=0)
+            return UNZ_INTERNALERROR;
+        if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12)
+            return UNZ_INTERNALERROR;
+
+        for (i = 0; i<12; i++)
+            zdecode(s->keys,s->pcrc_32_tab,source[i]);
+
+        s->pfile_in_zip_read->pos_in_zipfile+=12;
+        s->encrypted=1;
+    }
+#    endif
+
+
+    return UNZ_OK;
+}
+
+extern int ZEXPORT unzOpenCurrentFile (unzFile file)
+{
+    return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
+}
+
+extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char*  password)
+{
+    return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
+}
+
+extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw)
+{
+    return unzOpenCurrentFile3(file, method, level, raw, NULL);
+}
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file)
+{
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    s=(unz64_s*)file;
+    if (file==NULL)
+        return 0; //UNZ_PARAMERROR;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+    if (pfile_in_zip_read_info==NULL)
+        return 0; //UNZ_PARAMERROR;
+    return pfile_in_zip_read_info->pos_in_zipfile +
+                         pfile_in_zip_read_info->byte_before_the_zipfile;
+}
+
+/** Addition for GDAL : END */
+
+/*
+  Read bytes from the current file.
+  buf contain buffer where data must be copied
+  len the size of buf.
+
+  return the number of byte copied if somes bytes are copied
+  return 0 if the end of file was reached
+  return <0 with error code if there is an error
+    (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+extern int ZEXPORT unzReadCurrentFile  (unzFile file, voidp buf, unsigned len)
+{
+    int err=UNZ_OK;
+    uInt iRead = 0;
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+
+    if (pfile_in_zip_read_info->read_buffer == NULL)
+        return UNZ_END_OF_LIST_OF_FILE;
+    if (len==0)
+        return 0;
+
+    pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
+
+    pfile_in_zip_read_info->stream.avail_out = (uInt)len;
+
+    if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&
+        (!(pfile_in_zip_read_info->raw)))
+        pfile_in_zip_read_info->stream.avail_out =
+            (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
+
+    if ((len>pfile_in_zip_read_info->rest_read_compressed+
+           pfile_in_zip_read_info->stream.avail_in) &&
+         (pfile_in_zip_read_info->raw))
+        pfile_in_zip_read_info->stream.avail_out =
+            (uInt)pfile_in_zip_read_info->rest_read_compressed+
+            pfile_in_zip_read_info->stream.avail_in;
+
+    while (pfile_in_zip_read_info->stream.avail_out>0)
+    {
+        if ((pfile_in_zip_read_info->stream.avail_in==0) &&
+            (pfile_in_zip_read_info->rest_read_compressed>0))
+        {
+            uInt uReadThis = UNZ_BUFSIZE;
+            if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
+                uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
+            if (uReadThis == 0)
+                return UNZ_EOF;
+            if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
+                      pfile_in_zip_read_info->filestream,
+                      pfile_in_zip_read_info->pos_in_zipfile +
+                         pfile_in_zip_read_info->byte_before_the_zipfile,
+                         ZLIB_FILEFUNC_SEEK_SET)!=0)
+                return UNZ_ERRNO;
+            if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
+                      pfile_in_zip_read_info->filestream,
+                      pfile_in_zip_read_info->read_buffer,
+                      uReadThis)!=uReadThis)
+                return UNZ_ERRNO;
+
+
+#            ifndef NOUNCRYPT
+            if(s->encrypted)
+            {
+                uInt i;
+                for(i=0;i<uReadThis;i++)
+                  pfile_in_zip_read_info->read_buffer[i] =
+                      zdecode(s->keys,s->pcrc_32_tab,
+                              pfile_in_zip_read_info->read_buffer[i]);
+            }
+#            endif
+
+
+            pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
+
+            pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
+
+            pfile_in_zip_read_info->stream.next_in =
+                (Bytef*)pfile_in_zip_read_info->read_buffer;
+            pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
+        }
+
+        if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
+        {
+            uInt uDoCopy,i ;
+
+            if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
+                (pfile_in_zip_read_info->rest_read_compressed == 0))
+                return (iRead==0) ? UNZ_EOF : iRead;
+
+            if (pfile_in_zip_read_info->stream.avail_out <
+                            pfile_in_zip_read_info->stream.avail_in)
+                uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
+            else
+                uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
+
+            for (i=0;i<uDoCopy;i++)
+                *(pfile_in_zip_read_info->stream.next_out+i) =
+                        *(pfile_in_zip_read_info->stream.next_in+i);
+
+            pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
+
+            pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
+                                pfile_in_zip_read_info->stream.next_out,
+                                uDoCopy);
+            pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
+            pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
+            pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
+            pfile_in_zip_read_info->stream.next_out += uDoCopy;
+            pfile_in_zip_read_info->stream.next_in += uDoCopy;
+            pfile_in_zip_read_info->stream.total_out += uDoCopy;
+            iRead += uDoCopy;
+        }
+        else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED)
+        {
+#ifdef HAVE_BZIP2
+            uLong uTotalOutBefore,uTotalOutAfter;
+            const Bytef *bufBefore;
+            uLong uOutThis;
+
+            pfile_in_zip_read_info->bstream.next_in        = (char*)pfile_in_zip_read_info->stream.next_in;
+            pfile_in_zip_read_info->bstream.avail_in       = pfile_in_zip_read_info->stream.avail_in;
+            pfile_in_zip_read_info->bstream.total_in_lo32  = pfile_in_zip_read_info->stream.total_in;
+            pfile_in_zip_read_info->bstream.total_in_hi32  = 0;
+            pfile_in_zip_read_info->bstream.next_out       = (char*)pfile_in_zip_read_info->stream.next_out;
+            pfile_in_zip_read_info->bstream.avail_out      = pfile_in_zip_read_info->stream.avail_out;
+            pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out;
+            pfile_in_zip_read_info->bstream.total_out_hi32 = 0;
+
+            uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32;
+            bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out;
+
+            err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream);
+
+            uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32;
+            uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+            pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+            pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis));
+            pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis;
+            iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+            pfile_in_zip_read_info->stream.next_in   = (Bytef*)pfile_in_zip_read_info->bstream.next_in;
+            pfile_in_zip_read_info->stream.avail_in  = pfile_in_zip_read_info->bstream.avail_in;
+            pfile_in_zip_read_info->stream.total_in  = pfile_in_zip_read_info->bstream.total_in_lo32;
+            pfile_in_zip_read_info->stream.next_out  = (Bytef*)pfile_in_zip_read_info->bstream.next_out;
+            pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out;
+            pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32;
+
+            if (err==BZ_STREAM_END)
+              return (iRead==0) ? UNZ_EOF : iRead;
+            if (err!=BZ_OK)
+              break;
+#endif
+        } // end Z_BZIP2ED
+        else
+        {
+            ZPOS64_T uTotalOutBefore,uTotalOutAfter;
+            const Bytef *bufBefore;
+            ZPOS64_T uOutThis;
+            int flush=Z_SYNC_FLUSH;
+
+            uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
+            bufBefore = pfile_in_zip_read_info->stream.next_out;
+
+            /*
+            if ((pfile_in_zip_read_info->rest_read_uncompressed ==
+                     pfile_in_zip_read_info->stream.avail_out) &&
+                (pfile_in_zip_read_info->rest_read_compressed == 0))
+                flush = Z_FINISH;
+            */
+            err=inflate(&pfile_in_zip_read_info->stream,flush);
+
+            if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
+              err = Z_DATA_ERROR;
+
+            uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
+            uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+            pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
+
+            pfile_in_zip_read_info->crc32 =
+                crc32(pfile_in_zip_read_info->crc32,bufBefore,
+                        (uInt)(uOutThis));
+
+            pfile_in_zip_read_info->rest_read_uncompressed -=
+                uOutThis;
+
+            iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+            if (err==Z_STREAM_END)
+                return (iRead==0) ? UNZ_EOF : iRead;
+            if (err!=Z_OK)
+                break;
+        }
+    }
+
+    if (err==Z_OK)
+        return iRead;
+    return err;
+}
+
+
+/*
+  Give the current position in uncompressed data
+*/
+extern z_off_t ZEXPORT unztell (unzFile file)
+{
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+    return (z_off_t)pfile_in_zip_read_info->stream.total_out;
+}
+
+extern ZPOS64_T ZEXPORT unztell64 (unzFile file)
+{
+
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return (ZPOS64_T)-1;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return (ZPOS64_T)-1;
+
+    return pfile_in_zip_read_info->total_out_64;
+}
+
+
+/*
+  return 1 if the end of file was reached, 0 elsewhere
+*/
+extern int ZEXPORT unzeof (unzFile file)
+{
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+    if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
+        return 1;
+    else
+        return 0;
+}
+
+
+
+/*
+Read extra field from the current file (opened by unzOpenCurrentFile)
+This is the local-header version of the extra field (sometimes, there is
+more info in the local-header version than in the central-header)
+
+  if buf==NULL, it return the size of the local extra field that can be read
+
+  if buf!=NULL, len is the size of the buffer, the extra header is copied in
+    buf.
+  the return value is the number of bytes copied in buf, or (if <0)
+    the error code
+*/
+extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len)
+{
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    uInt read_now;
+    ZPOS64_T size_to_read;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+    size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
+                pfile_in_zip_read_info->pos_local_extrafield);
+
+    if (buf==NULL)
+        return (int)size_to_read;
+
+    if (len>size_to_read)
+        read_now = (uInt)size_to_read;
+    else
+        read_now = (uInt)len ;
+
+    if (read_now==0)
+        return 0;
+
+    if (ZSEEK64(pfile_in_zip_read_info->z_filefunc,
+              pfile_in_zip_read_info->filestream,
+              pfile_in_zip_read_info->offset_local_extrafield +
+              pfile_in_zip_read_info->pos_local_extrafield,
+              ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return UNZ_ERRNO;
+
+    if (ZREAD64(pfile_in_zip_read_info->z_filefunc,
+              pfile_in_zip_read_info->filestream,
+              buf,read_now)!=read_now)
+        return UNZ_ERRNO;
+
+    return (int)read_now;
+}
+
+/*
+  Close the file in zip opened with unzOpenCurrentFile
+  Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+extern int ZEXPORT unzCloseCurrentFile (unzFile file)
+{
+    int err=UNZ_OK;
+
+    unz64_s* s;
+    file_in_zip64_read_info_s* pfile_in_zip_read_info;
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+    if (pfile_in_zip_read_info==NULL)
+        return UNZ_PARAMERROR;
+
+
+    if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&
+        (!pfile_in_zip_read_info->raw))
+    {
+        if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
+            err=UNZ_CRCERROR;
+    }
+
+
+    TRYFREE(pfile_in_zip_read_info->read_buffer);
+    pfile_in_zip_read_info->read_buffer = NULL;
+    if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED)
+        inflateEnd(&pfile_in_zip_read_info->stream);
+#ifdef HAVE_BZIP2
+    else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED)
+        BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream);
+#endif
+
+
+    pfile_in_zip_read_info->stream_initialised = 0;
+    TRYFREE(pfile_in_zip_read_info);
+
+    s->pfile_in_zip_read=NULL;
+
+    return err;
+}
+
+
+/*
+  Get the global comment string of the ZipFile, in the szComment buffer.
+  uSizeBuf is the size of the szComment buffer.
+  return the number of byte copied or an error code <0
+*/
+extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf)
+{
+    unz64_s* s;
+    uLong uReadThis ;
+    if (file==NULL)
+        return (int)UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    uReadThis = uSizeBuf;
+    if (uReadThis>s->gi.size_comment)
+        uReadThis = s->gi.size_comment;
+
+    if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
+        return UNZ_ERRNO;
+
+    if (uReadThis>0)
+    {
+      *szComment='\0';
+      if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
+        return UNZ_ERRNO;
+    }
+
+    if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
+        *(szComment+s->gi.size_comment)='\0';
+    return (int)uReadThis;
+}
+
+/* Additions by RX '2004 */
+extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file)
+{
+    unz64_s* s;
+
+    if (file==NULL)
+          return 0; //UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+    if (!s->current_file_ok)
+      return 0;
+    if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
+      if (s->num_file==s->gi.number_entry)
+         return 0;
+    return s->pos_in_central_dir;
+}
+
+extern uLong ZEXPORT unzGetOffset (unzFile file)
+{
+    ZPOS64_T offset64;
+
+    if (file==NULL)
+          return 0; //UNZ_PARAMERROR;
+    offset64 = unzGetOffset64(file);
+    return (uLong)offset64;
+}
+
+extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos)
+{
+    unz64_s* s;
+    int err;
+
+    if (file==NULL)
+        return UNZ_PARAMERROR;
+    s=(unz64_s*)file;
+
+    s->pos_in_central_dir = pos;
+    s->num_file = s->gi.number_entry;      /* hack */
+    err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+                                              &s->cur_file_info_internal,
+                                              NULL,0,NULL,0,NULL,0);
+    s->current_file_ok = (err == UNZ_OK);
+    return err;
+}
+
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos)
+{
+    return unzSetOffset64(file,pos);
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/unzip.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/unzip.h
new file mode 100644
index 000000000..2104e3915
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/unzip.h
@@ -0,0 +1,437 @@
+/* unzip.h -- IO for uncompress .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications of Unzip for Zip64
+         Copyright (C) 2007-2008 Even Rouault
+
+         Modifications for Zip64 support on both zip and unzip
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         ---------------------------------------------------------------------------------
+
+        Condition of use and distribution are the same than zlib :
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  ---------------------------------------------------------------------------------
+
+        Changes
+
+        See header of unzip64.c
+
+*/
+
+#ifndef _unz64_H
+#define _unz64_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#ifndef  _ZLIBIOAPI_H
+#include "ioapi.h"
+#endif
+
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
+#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
+/* like the STRICT of WIN32, we define a pointer that cannot be converted
+    from (void*) without cast */
+typedef struct TagunzFile__ { int unused; } unzFile__;
+typedef unzFile__ *unzFile;
+#else
+typedef voidp unzFile;
+#endif
+
+
+#define UNZ_OK                          (0)
+#define UNZ_END_OF_LIST_OF_FILE         (-100)
+#define UNZ_ERRNO                       (Z_ERRNO)
+#define UNZ_EOF                         (0)
+#define UNZ_PARAMERROR                  (-102)
+#define UNZ_BADZIPFILE                  (-103)
+#define UNZ_INTERNALERROR               (-104)
+#define UNZ_CRCERROR                    (-105)
+
+/* tm_unz contain date/time info */
+typedef struct tm_unz_s
+{
+    uInt tm_sec;            /* seconds after the minute - [0,59] */
+    uInt tm_min;            /* minutes after the hour - [0,59] */
+    uInt tm_hour;           /* hours since midnight - [0,23] */
+    uInt tm_mday;           /* day of the month - [1,31] */
+    uInt tm_mon;            /* months since January - [0,11] */
+    uInt tm_year;           /* years - [1980..2044] */
+} tm_unz;
+
+/* unz_global_info structure contain global data about the ZIPfile
+   These data comes from the end of central dir */
+typedef struct unz_global_info64_s
+{
+    ZPOS64_T number_entry;         /* total number of entries in
+                                     the central dir on this disk */
+    uLong size_comment;         /* size of the global comment of the zipfile */
+} unz_global_info64;
+
+typedef struct unz_global_info_s
+{
+    uLong number_entry;         /* total number of entries in
+                                     the central dir on this disk */
+    uLong size_comment;         /* size of the global comment of the zipfile */
+} unz_global_info;
+
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_info64_s
+{
+    uLong version;              /* version made by                 2 bytes */
+    uLong version_needed;       /* version needed to extract       2 bytes */
+    uLong flag;                 /* general purpose bit flag        2 bytes */
+    uLong compression_method;   /* compression method              2 bytes */
+    uLong dosDate;              /* last mod file date in Dos fmt   4 bytes */
+    uLong crc;                  /* crc-32                          4 bytes */
+    ZPOS64_T compressed_size;   /* compressed size                 8 bytes */
+    ZPOS64_T uncompressed_size; /* uncompressed size               8 bytes */
+    uLong size_filename;        /* filename length                 2 bytes */
+    uLong size_file_extra;      /* extra field length              2 bytes */
+    uLong size_file_comment;    /* file comment length             2 bytes */
+
+    uLong disk_num_start;       /* disk number start               2 bytes */
+    uLong internal_fa;          /* internal file attributes        2 bytes */
+    uLong external_fa;          /* external file attributes        4 bytes */
+
+    tm_unz tmu_date;
+} unz_file_info64;
+
+typedef struct unz_file_info_s
+{
+    uLong version;              /* version made by                 2 bytes */
+    uLong version_needed;       /* version needed to extract       2 bytes */
+    uLong flag;                 /* general purpose bit flag        2 bytes */
+    uLong compression_method;   /* compression method              2 bytes */
+    uLong dosDate;              /* last mod file date in Dos fmt   4 bytes */
+    uLong crc;                  /* crc-32                          4 bytes */
+    uLong compressed_size;      /* compressed size                 4 bytes */
+    uLong uncompressed_size;    /* uncompressed size               4 bytes */
+    uLong size_filename;        /* filename length                 2 bytes */
+    uLong size_file_extra;      /* extra field length              2 bytes */
+    uLong size_file_comment;    /* file comment length             2 bytes */
+
+    uLong disk_num_start;       /* disk number start               2 bytes */
+    uLong internal_fa;          /* internal file attributes        2 bytes */
+    uLong external_fa;          /* external file attributes        4 bytes */
+
+    tm_unz tmu_date;
+} unz_file_info;
+
+extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
+                                                 const char* fileName2,
+                                                 int iCaseSensitivity));
+/*
+   Compare two filename (fileName1,fileName2).
+   If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
+   If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
+                                or strcasecmp)
+   If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
+    (like 1 on Unix, 2 on Windows)
+*/
+
+
+extern unzFile ZEXPORT unzOpen OF((const char *path));
+extern unzFile ZEXPORT unzOpen64 OF((const void *path));
+/*
+  Open a Zip file. path contain the full pathname (by example,
+     on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
+     "zlib/zlib113.zip".
+     If the zipfile cannot be opened (file don't exist or in not valid), the
+       return value is NULL.
+     Else, the return value is a unzFile Handle, usable with other function
+       of this unzip package.
+     the "64" function take a const void* pointer, because the path is just the
+       value passed to the open64_file_func callback.
+     Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
+       is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
+       does not describe the reality
+*/
+
+
+extern unzFile ZEXPORT unzOpen2 OF((const char *path,
+                                    zlib_filefunc_def* pzlib_filefunc_def));
+/*
+   Open a Zip file, like unzOpen, but provide a set of file low level API
+      for read/write the zip file (see ioapi.h)
+*/
+
+extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
+                                    zlib_filefunc64_def* pzlib_filefunc_def));
+/*
+   Open a Zip file, like unz64Open, but provide a set of file low level API
+      for read/write the zip file (see ioapi.h)
+*/
+
+extern int ZEXPORT unzClose OF((unzFile file));
+/*
+  Close a ZipFile opened with unzOpen.
+  If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
+  return UNZ_OK if there is no problem. */
+
+extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
+                                        unz_global_info *pglobal_info));
+
+extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
+                                        unz_global_info64 *pglobal_info));
+/*
+  Write info about the ZipFile in the *pglobal_info structure.
+  No preparation of the structure is needed
+  return UNZ_OK if there is no problem. */
+
+
+extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
+                                           char *szComment,
+                                           uLong uSizeBuf));
+/*
+  Get the global comment string of the ZipFile, in the szComment buffer.
+  uSizeBuf is the size of the szComment buffer.
+  return the number of byte copied or an error code <0
+*/
+
+
+/***************************************************************************/
+/* Unzip package allow you browse the directory of the zipfile */
+
+extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
+/*
+  Set the current file of the zipfile to the first file.
+  return UNZ_OK if there is no problem
+*/
+
+extern int ZEXPORT unzGoToNextFile OF((unzFile file));
+/*
+  Set the current file of the zipfile to the next file.
+  return UNZ_OK if there is no problem
+  return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+
+extern int ZEXPORT unzLocateFile OF((unzFile file,
+                     const char *szFileName,
+                     int iCaseSensitivity));
+/*
+  Try locate the file szFileName in the zipfile.
+  For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+  return value :
+  UNZ_OK if the file is found. It becomes the current file.
+  UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+
+
+/* ****************************************** */
+/* Ryan supplied functions */
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_pos_s
+{
+    uLong pos_in_zip_directory;   /* offset in zip file directory */
+    uLong num_of_file;            /* # of file */
+} unz_file_pos;
+
+extern int ZEXPORT unzGetFilePos(
+    unzFile file,
+    unz_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos(
+    unzFile file,
+    unz_file_pos* file_pos);
+
+typedef struct unz64_file_pos_s
+{
+    ZPOS64_T pos_in_zip_directory;   /* offset in zip file directory */
+    ZPOS64_T num_of_file;            /* # of file */
+} unz64_file_pos;
+
+extern int ZEXPORT unzGetFilePos64(
+    unzFile file,
+    unz64_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos64(
+    unzFile file,
+    const unz64_file_pos* file_pos);
+
+/* ****************************************** */
+
+extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
+                         unz_file_info64 *pfile_info,
+                         char *szFileName,
+                         uLong fileNameBufferSize,
+                         void *extraField,
+                         uLong extraFieldBufferSize,
+                         char *szComment,
+                         uLong commentBufferSize));
+
+extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
+                         unz_file_info *pfile_info,
+                         char *szFileName,
+                         uLong fileNameBufferSize,
+                         void *extraField,
+                         uLong extraFieldBufferSize,
+                         char *szComment,
+                         uLong commentBufferSize));
+/*
+  Get Info about the current file
+  if pfile_info!=NULL, the *pfile_info structure will contain somes info about
+        the current file
+  if szFileName!=NULL, the filemane string will be copied in szFileName
+            (fileNameBufferSize is the size of the buffer)
+  if extraField!=NULL, the extra field information will be copied in extraField
+            (extraFieldBufferSize is the size of the buffer).
+            This is the Central-header version of the extra field
+  if szComment!=NULL, the comment string of the file will be copied in szComment
+            (commentBufferSize is the size of the buffer)
+*/
+
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file));
+
+/** Addition for GDAL : END */
+
+
+/***************************************************************************/
+/* for reading the content of the current zipfile, you can open it, read data
+   from it, and close it (you can close it before reading all the file)
+   */
+
+extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
+/*
+  Open for reading data the current file in the zipfile.
+  If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
+                                                  const char* password));
+/*
+  Open for reading data the current file in the zipfile.
+  password is a crypting password
+  If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
+                                           int* method,
+                                           int* level,
+                                           int raw));
+/*
+  Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+    if raw==1
+  *method will receive method of compression, *level will receive level of
+     compression
+  note : you can set level parameter as NULL (if you did not want known level,
+         but you CANNOT set method parameter as NULL
+*/
+
+extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
+                                           int* method,
+                                           int* level,
+                                           int raw,
+                                           const char* password));
+/*
+  Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+    if raw==1
+  *method will receive method of compression, *level will receive level of
+     compression
+  note : you can set level parameter as NULL (if you did not want known level,
+         but you CANNOT set method parameter as NULL
+*/
+
+
+extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
+/*
+  Close the file in zip opened with unzOpenCurrentFile
+  Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+
+extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
+                      voidp buf,
+                      unsigned len));
+/*
+  Read bytes from the current file (opened by unzOpenCurrentFile)
+  buf contain buffer where data must be copied
+  len the size of buf.
+
+  return the number of byte copied if somes bytes are copied
+  return 0 if the end of file was reached
+  return <0 with error code if there is an error
+    (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+
+extern z_off_t ZEXPORT unztell OF((unzFile file));
+
+extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
+/*
+  Give the current position in uncompressed data
+*/
+
+extern int ZEXPORT unzeof OF((unzFile file));
+/*
+  return 1 if the end of file was reached, 0 elsewhere
+*/
+
+extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
+                                             voidp buf,
+                                             unsigned len));
+/*
+  Read extra field from the current file (opened by unzOpenCurrentFile)
+  This is the local-header version of the extra field (sometimes, there is
+    more info in the local-header version than in the central-header)
+
+  if buf==NULL, it return the size of the local extra field
+
+  if buf!=NULL, len is the size of the buffer, the extra header is copied in
+    buf.
+  the return value is the number of bytes copied in buf, or (if <0)
+    the error code
+*/
+
+/***************************************************************************/
+
+/* Get the current file offset */
+extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
+extern uLong ZEXPORT unzGetOffset (unzFile file);
+
+/* Set the current file offset */
+extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _unz64_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/zip.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/zip.c
new file mode 100644
index 000000000..44e88a9cb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/zip.c
@@ -0,0 +1,2007 @@
+/* zip.c -- IO on .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         Changes
+   Oct-2009 - Mathias Svensson - Remove old C style function prototypes
+   Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives
+   Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions.
+   Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data
+                                 It is used when recreting zip archive with RAW when deleting items from a zip.
+                                 ZIP64 data is automatically added to items that needs it, and existing ZIP64 data need to be removed.
+   Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required)
+   Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer
+
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "zlib.h"
+#include "zip.h"
+
+#ifdef STDC
+#  include <stddef.h>
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+#ifdef NO_ERRNO_H
+    extern int errno;
+#else
+#   include <errno.h>
+#endif
+
+
+#ifndef local
+#  define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+#ifndef VERSIONMADEBY
+# define VERSIONMADEBY   (0x0) /* platform depedent */
+#endif
+
+#ifndef Z_BUFSIZE
+#define Z_BUFSIZE (64*1024) //(16384)
+#endif
+
+#ifndef Z_MAXFILENAMEINZIP
+#define Z_MAXFILENAMEINZIP (256)
+#endif
+
+#ifndef ALLOC
+# define ALLOC(size) (malloc(size))
+#endif
+#ifndef TRYFREE
+# define TRYFREE(p) {if (p) free(p);}
+#endif
+
+/*
+#define SIZECENTRALDIRITEM (0x2e)
+#define SIZEZIPLOCALHEADER (0x1e)
+*/
+
+/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+
+
+// NOT sure that this work on ALL platform
+#define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32))
+
+#ifndef SEEK_CUR
+#define SEEK_CUR    1
+#endif
+
+#ifndef SEEK_END
+#define SEEK_END    2
+#endif
+
+#ifndef SEEK_SET
+#define SEEK_SET    0
+#endif
+
+#ifndef DEF_MEM_LEVEL
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+#endif
+const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+
+
+#define SIZEDATA_INDATABLOCK (4096-(4*4))
+
+#define LOCALHEADERMAGIC    (0x04034b50)
+#define CENTRALHEADERMAGIC  (0x02014b50)
+#define ENDHEADERMAGIC      (0x06054b50)
+#define ZIP64ENDHEADERMAGIC      (0x6064b50)
+#define ZIP64ENDLOCHEADERMAGIC   (0x7064b50)
+
+#define FLAG_LOCALHEADER_OFFSET (0x06)
+#define CRC_LOCALHEADER_OFFSET  (0x0e)
+
+#define SIZECENTRALHEADER (0x2e) /* 46 */
+
+typedef struct linkedlist_datablock_internal_s
+{
+  struct linkedlist_datablock_internal_s* next_datablock;
+  uLong  avail_in_this_block;
+  uLong  filled_in_this_block;
+  uLong  unused; /* for future use and alignment */
+  unsigned char data[SIZEDATA_INDATABLOCK];
+} linkedlist_datablock_internal;
+
+typedef struct linkedlist_data_s
+{
+    linkedlist_datablock_internal* first_block;
+    linkedlist_datablock_internal* last_block;
+} linkedlist_data;
+
+
+typedef struct
+{
+    z_stream stream;            /* zLib stream structure for inflate */
+#ifdef HAVE_BZIP2
+    bz_stream bstream;          /* bzLib stream structure for bziped */
+#endif
+
+    int  stream_initialised;    /* 1 is stream is initialised */
+    uInt pos_in_buffered_data;  /* last written byte in buffered_data */
+
+    ZPOS64_T pos_local_header;     /* offset of the local header of the file
+                                     currenty writing */
+    char* central_header;       /* central header data for the current file */
+    uLong size_centralExtra;
+    uLong size_centralheader;   /* size of the central header for cur file */
+    uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */
+    uLong flag;                 /* flag of the file currently writing */
+
+    int  method;                /* compression method of file currenty wr.*/
+    int  raw;                   /* 1 for directly writing raw data */
+    Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/
+    uLong dosDate;
+    uLong crc32;
+    int  encrypt;
+    int  zip64;               /* Add ZIP64 extened information in the extra field */
+    ZPOS64_T pos_zip64extrainfo;
+    ZPOS64_T totalCompressedData;
+    ZPOS64_T totalUncompressedData;
+#ifndef NOCRYPT
+    unsigned long keys[3];     /* keys defining the pseudo-random sequence */
+    const z_crc_t* pcrc_32_tab;
+    int crypt_header_size;
+#endif
+} curfile64_info;
+
+typedef struct
+{
+    zlib_filefunc64_32_def z_filefunc;
+    voidpf filestream;        /* io structore of the zipfile */
+    linkedlist_data central_dir;/* datablock with central dir in construction*/
+    int  in_opened_file_inzip;  /* 1 if a file in the zip is currently writ.*/
+    curfile64_info ci;            /* info on the file curretly writing */
+
+    ZPOS64_T begin_pos;            /* position of the beginning of the zipfile */
+    ZPOS64_T add_position_when_writing_offset;
+    ZPOS64_T number_entry;
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+    char *globalcomment;
+#endif
+
+} zip64_internal;
+
+
+#ifndef NOCRYPT
+#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED
+#include "crypt.h"
+#endif
+
+local linkedlist_datablock_internal* allocate_new_datablock()
+{
+    linkedlist_datablock_internal* ldi;
+    ldi = (linkedlist_datablock_internal*)
+                 ALLOC(sizeof(linkedlist_datablock_internal));
+    if (ldi!=NULL)
+    {
+        ldi->next_datablock = NULL ;
+        ldi->filled_in_this_block = 0 ;
+        ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ;
+    }
+    return ldi;
+}
+
+local void free_datablock(linkedlist_datablock_internal* ldi)
+{
+    while (ldi!=NULL)
+    {
+        linkedlist_datablock_internal* ldinext = ldi->next_datablock;
+        TRYFREE(ldi);
+        ldi = ldinext;
+    }
+}
+
+local void init_linkedlist(linkedlist_data* ll)
+{
+    ll->first_block = ll->last_block = NULL;
+}
+
+local void free_linkedlist(linkedlist_data* ll)
+{
+    free_datablock(ll->first_block);
+    ll->first_block = ll->last_block = NULL;
+}
+
+
+local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len)
+{
+    linkedlist_datablock_internal* ldi;
+    const unsigned char* from_copy;
+
+    if (ll==NULL)
+        return ZIP_INTERNALERROR;
+
+    if (ll->last_block == NULL)
+    {
+        ll->first_block = ll->last_block = allocate_new_datablock();
+        if (ll->first_block == NULL)
+            return ZIP_INTERNALERROR;
+    }
+
+    ldi = ll->last_block;
+    from_copy = (unsigned char*)buf;
+
+    while (len>0)
+    {
+        uInt copy_this;
+        uInt i;
+        unsigned char* to_copy;
+
+        if (ldi->avail_in_this_block==0)
+        {
+            ldi->next_datablock = allocate_new_datablock();
+            if (ldi->next_datablock == NULL)
+                return ZIP_INTERNALERROR;
+            ldi = ldi->next_datablock ;
+            ll->last_block = ldi;
+        }
+
+        if (ldi->avail_in_this_block < len)
+            copy_this = (uInt)ldi->avail_in_this_block;
+        else
+            copy_this = (uInt)len;
+
+        to_copy = &(ldi->data[ldi->filled_in_this_block]);
+
+        for (i=0;i<copy_this;i++)
+            *(to_copy+i)=*(from_copy+i);
+
+        ldi->filled_in_this_block += copy_this;
+        ldi->avail_in_this_block -= copy_this;
+        from_copy += copy_this ;
+        len -= copy_this;
+    }
+    return ZIP_OK;
+}
+
+
+
+/****************************************************************************/
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+/* ===========================================================================
+   Inputs a long in LSB order to the given file
+   nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T)
+*/
+
+local int zip64local_putValue OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte));
+local int zip64local_putValue (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte)
+{
+    unsigned char buf[8];
+    int n;
+    for (n = 0; n < nbByte; n++)
+    {
+        buf[n] = (unsigned char)(x & 0xff);
+        x >>= 8;
+    }
+    if (x != 0)
+      {     /* data overflow - hack for ZIP64 (X Roche) */
+      for (n = 0; n < nbByte; n++)
+        {
+          buf[n] = 0xff;
+        }
+      }
+
+    if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte)
+        return ZIP_ERRNO;
+    else
+        return ZIP_OK;
+}
+
+local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte));
+local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte)
+{
+    unsigned char* buf=(unsigned char*)dest;
+    int n;
+    for (n = 0; n < nbByte; n++) {
+        buf[n] = (unsigned char)(x & 0xff);
+        x >>= 8;
+    }
+
+    if (x != 0)
+    {     /* data overflow - hack for ZIP64 */
+       for (n = 0; n < nbByte; n++)
+       {
+          buf[n] = 0xff;
+       }
+    }
+}
+
+/****************************************************************************/
+
+
+local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm)
+{
+    uLong year = (uLong)ptm->tm_year;
+    if (year>=1980)
+        year-=1980;
+    else if (year>=80)
+        year-=80;
+    return
+      (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) |
+        ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour));
+}
+
+
+/****************************************************************************/
+
+local int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi));
+
+local int zip64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def,voidpf filestream,int* pi)
+{
+    unsigned char c;
+    int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
+    if (err==1)
+    {
+        *pi = (int)c;
+        return ZIP_OK;
+    }
+    else
+    {
+        if (ZERROR64(*pzlib_filefunc_def,filestream))
+            return ZIP_ERRNO;
+        else
+            return ZIP_EOF;
+    }
+}
+
+
+/* ===========================================================================
+   Reads a long in LSB order from the given gz_stream. Sets
+*/
+local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
+
+local int zip64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
+{
+    uLong x ;
+    int i = 0;
+    int err;
+
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (uLong)i;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<8;
+
+    if (err==ZIP_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+local int zip64local_getLong OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX));
+
+local int zip64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX)
+{
+    uLong x ;
+    int i = 0;
+    int err;
+
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x = (uLong)i;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<8;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<16;
+
+    if (err==ZIP_OK)
+        err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+    x += ((uLong)i)<<24;
+
+    if (err==ZIP_OK)
+        *pX = x;
+    else
+        *pX = 0;
+    return err;
+}
+
+local int zip64local_getLong64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX));
+
+
+local int zip64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)
+{
+  ZPOS64_T x;
+  int i = 0;
+  int err;
+
+  err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x = (ZPOS64_T)i;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<8;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<16;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<24;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<32;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<40;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<48;
+
+  if (err==ZIP_OK)
+    err = zip64local_getByte(pzlib_filefunc_def,filestream,&i);
+  x += ((ZPOS64_T)i)<<56;
+
+  if (err==ZIP_OK)
+    *pX = x;
+  else
+    *pX = 0;
+
+  return err;
+}
+
+#ifndef BUFREADCOMMENT
+#define BUFREADCOMMENT (0x400)
+#endif
+/*
+  Locate the Central directory of a zipfile (at the end, just before
+    the global comment)
+*/
+local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
+
+local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
+{
+  unsigned char* buf;
+  ZPOS64_T uSizeFile;
+  ZPOS64_T uBackRead;
+  ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+  ZPOS64_T uPosFound=0;
+
+  if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+    return 0;
+
+
+  uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+  if (uMaxBack>uSizeFile)
+    uMaxBack = uSizeFile;
+
+  buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+  if (buf==NULL)
+    return 0;
+
+  uBackRead = 4;
+  while (uBackRead<uMaxBack)
+  {
+    uLong uReadSize;
+    ZPOS64_T uReadPos ;
+    int i;
+    if (uBackRead+BUFREADCOMMENT>uMaxBack)
+      uBackRead = uMaxBack;
+    else
+      uBackRead+=BUFREADCOMMENT;
+    uReadPos = uSizeFile-uBackRead ;
+
+    uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+      (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+      break;
+
+    if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+      break;
+
+    for (i=(int)uReadSize-3; (i--)>0;)
+      if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+        ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+      {
+        uPosFound = uReadPos+i;
+        break;
+      }
+
+      if (uPosFound!=0)
+        break;
+  }
+  TRYFREE(buf);
+  return uPosFound;
+}
+
+/*
+Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before
+the global comment)
+*/
+local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream));
+
+local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)
+{
+  unsigned char* buf;
+  ZPOS64_T uSizeFile;
+  ZPOS64_T uBackRead;
+  ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */
+  ZPOS64_T uPosFound=0;
+  uLong uL;
+  ZPOS64_T relativeOffset;
+
+  if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+    return 0;
+
+  uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream);
+
+  if (uMaxBack>uSizeFile)
+    uMaxBack = uSizeFile;
+
+  buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+  if (buf==NULL)
+    return 0;
+
+  uBackRead = 4;
+  while (uBackRead<uMaxBack)
+  {
+    uLong uReadSize;
+    ZPOS64_T uReadPos;
+    int i;
+    if (uBackRead+BUFREADCOMMENT>uMaxBack)
+      uBackRead = uMaxBack;
+    else
+      uBackRead+=BUFREADCOMMENT;
+    uReadPos = uSizeFile-uBackRead ;
+
+    uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
+      (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos);
+    if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+      break;
+
+    if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+      break;
+
+    for (i=(int)uReadSize-3; (i--)>0;)
+    {
+      // Signature "0x07064b50" Zip64 end of central directory locater
+      if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07))
+      {
+        uPosFound = uReadPos+i;
+        break;
+      }
+    }
+
+      if (uPosFound!=0)
+        break;
+  }
+
+  TRYFREE(buf);
+  if (uPosFound == 0)
+    return 0;
+
+  /* Zip64 end of central directory locator */
+  if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
+    return 0;
+
+  /* the signature, already checked */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+
+  /* number of the disk with the start of the zip64 end of  central directory */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+  if (uL != 0)
+    return 0;
+
+  /* relative offset of the zip64 end of central directory record */
+  if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK)
+    return 0;
+
+  /* total number of disks */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+  if (uL != 1)
+    return 0;
+
+  /* Goto Zip64 end of central directory record */
+  if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
+    return 0;
+
+  /* the signature */
+  if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK)
+    return 0;
+
+  if (uL != 0x06064b50) // signature of 'Zip64 end of central directory'
+    return 0;
+
+  return relativeOffset;
+}
+
+int LoadCentralDirectoryRecord(zip64_internal* pziinit)
+{
+  int err=ZIP_OK;
+  ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+
+  ZPOS64_T size_central_dir;     /* size of the central directory  */
+  ZPOS64_T offset_central_dir;   /* offset of start of central directory */
+  ZPOS64_T central_pos;
+  uLong uL;
+
+  uLong number_disk;          /* number of the current dist, used for
+                              spaning ZIP, unsupported, always 0*/
+  uLong number_disk_with_CD;  /* number the the disk with central dir, used
+                              for spaning ZIP, unsupported, always 0*/
+  ZPOS64_T number_entry;
+  ZPOS64_T number_entry_CD;      /* total number of entries in
+                                the central dir
+                                (same than number_entry on nospan) */
+  uLong VersionMadeBy;
+  uLong VersionNeeded;
+  uLong size_comment;
+
+  int hasZIP64Record = 0;
+
+  // check first if we find a ZIP64 record
+  central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream);
+  if(central_pos > 0)
+  {
+    hasZIP64Record = 1;
+  }
+  else if(central_pos == 0)
+  {
+    central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream);
+  }
+
+/* disable to allow appending to empty ZIP archive
+        if (central_pos==0)
+            err=ZIP_ERRNO;
+*/
+
+  if(hasZIP64Record)
+  {
+    ZPOS64_T sizeEndOfCentralDirectory;
+    if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0)
+      err=ZIP_ERRNO;
+
+    /* the signature, already checked */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* size of zip64 end of central directory record */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* version made by */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* version needed to extract */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of this disk */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of the disk with the start of the central directory */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* total number of entries in the central directory on this disk */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* total number of entries in the central directory */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
+      err=ZIP_BADZIPFILE;
+
+    /* size of the central directory */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* offset of start of central directory with respect to the
+    starting disk number */
+    if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    // TODO..
+    // read the comment from the standard central header.
+    size_comment = 0;
+  }
+  else
+  {
+    // Read End of central Directory info
+    if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+      err=ZIP_ERRNO;
+
+    /* the signature, already checked */
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of this disk */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* number of the disk with the start of the central directory */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK)
+      err=ZIP_ERRNO;
+
+    /* total number of entries in the central dir on this disk */
+    number_entry = 0;
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      number_entry = uL;
+
+    /* total number of entries in the central dir */
+    number_entry_CD = 0;
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      number_entry_CD = uL;
+
+    if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0))
+      err=ZIP_BADZIPFILE;
+
+    /* size of the central directory */
+    size_central_dir = 0;
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      size_central_dir = uL;
+
+    /* offset of start of central directory with respect to the starting disk number */
+    offset_central_dir = 0;
+    if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK)
+      err=ZIP_ERRNO;
+    else
+      offset_central_dir = uL;
+
+
+    /* zipfile global comment length */
+    if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK)
+      err=ZIP_ERRNO;
+  }
+
+  if ((central_pos<offset_central_dir+size_central_dir) &&
+    (err==ZIP_OK))
+    err=ZIP_BADZIPFILE;
+
+  if (err!=ZIP_OK)
+  {
+    ZCLOSE64(pziinit->z_filefunc, pziinit->filestream);
+    return ZIP_ERRNO;
+  }
+
+  if (size_comment>0)
+  {
+    pziinit->globalcomment = (char*)ALLOC(size_comment+1);
+    if (pziinit->globalcomment)
+    {
+      size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment);
+      pziinit->globalcomment[size_comment]=0;
+    }
+  }
+
+  byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir);
+  pziinit->add_position_when_writing_offset = byte_before_the_zipfile;
+
+  {
+    ZPOS64_T size_central_dir_to_read = size_central_dir;
+    size_t buf_size = SIZEDATA_INDATABLOCK;
+    void* buf_read = (void*)ALLOC(buf_size);
+    if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0)
+      err=ZIP_ERRNO;
+
+    while ((size_central_dir_to_read>0) && (err==ZIP_OK))
+    {
+      ZPOS64_T read_this = SIZEDATA_INDATABLOCK;
+      if (read_this > size_central_dir_to_read)
+        read_this = size_central_dir_to_read;
+
+      if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this)
+        err=ZIP_ERRNO;
+
+      if (err==ZIP_OK)
+        err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this);
+
+      size_central_dir_to_read-=read_this;
+    }
+    TRYFREE(buf_read);
+  }
+  pziinit->begin_pos = byte_before_the_zipfile;
+  pziinit->number_entry = number_entry_CD;
+
+  if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0)
+    err=ZIP_ERRNO;
+
+  return err;
+}
+
+
+#endif /* !NO_ADDFILEINEXISTINGZIP*/
+
+
+/************************************************************/
+extern zipFile ZEXPORT zipOpen3 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def)
+{
+    zip64_internal ziinit;
+    zip64_internal* zi;
+    int err=ZIP_OK;
+
+    ziinit.z_filefunc.zseek32_file = NULL;
+    ziinit.z_filefunc.ztell32_file = NULL;
+    if (pzlib_filefunc64_32_def==NULL)
+        fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64);
+    else
+        ziinit.z_filefunc = *pzlib_filefunc64_32_def;
+
+    ziinit.filestream = ZOPEN64(ziinit.z_filefunc,
+                  pathname,
+                  (append == APPEND_STATUS_CREATE) ?
+                  (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) :
+                    (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING));
+
+    if (ziinit.filestream == NULL)
+        return NULL;
+
+    if (append == APPEND_STATUS_CREATEAFTER)
+        ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END);
+
+    ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream);
+    ziinit.in_opened_file_inzip = 0;
+    ziinit.ci.stream_initialised = 0;
+    ziinit.number_entry = 0;
+    ziinit.add_position_when_writing_offset = 0;
+    init_linkedlist(&(ziinit.central_dir));
+
+
+
+    zi = (zip64_internal*)ALLOC(sizeof(zip64_internal));
+    if (zi==NULL)
+    {
+        ZCLOSE64(ziinit.z_filefunc,ziinit.filestream);
+        return NULL;
+    }
+
+    /* now we add file in a zipfile */
+#    ifndef NO_ADDFILEINEXISTINGZIP
+    ziinit.globalcomment = NULL;
+    if (append == APPEND_STATUS_ADDINZIP)
+    {
+      // Read and Cache Central Directory Records
+      err = LoadCentralDirectoryRecord(&ziinit);
+    }
+
+    if (globalcomment)
+    {
+      *globalcomment = ziinit.globalcomment;
+    }
+#    endif /* !NO_ADDFILEINEXISTINGZIP*/
+
+    if (err != ZIP_OK)
+    {
+#    ifndef NO_ADDFILEINEXISTINGZIP
+        TRYFREE(ziinit.globalcomment);
+#    endif /* !NO_ADDFILEINEXISTINGZIP*/
+        TRYFREE(zi);
+        return NULL;
+    }
+    else
+    {
+        *zi = ziinit;
+        return (zipFile)zi;
+    }
+}
+
+extern zipFile ZEXPORT zipOpen2 (const char *pathname, int append, zipcharpc* globalcomment, zlib_filefunc_def* pzlib_filefunc32_def)
+{
+    if (pzlib_filefunc32_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def);
+        return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
+    }
+    else
+        return zipOpen3(pathname, append, globalcomment, NULL);
+}
+
+extern zipFile ZEXPORT zipOpen2_64 (const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_def* pzlib_filefunc_def)
+{
+    if (pzlib_filefunc_def != NULL)
+    {
+        zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
+        zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def;
+        zlib_filefunc64_32_def_fill.ztell32_file = NULL;
+        zlib_filefunc64_32_def_fill.zseek32_file = NULL;
+        return zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill);
+    }
+    else
+        return zipOpen3(pathname, append, globalcomment, NULL);
+}
+
+
+
+extern zipFile ZEXPORT zipOpen (const char* pathname, int append)
+{
+    return zipOpen3((const void*)pathname,append,NULL,NULL);
+}
+
+extern zipFile ZEXPORT zipOpen64 (const void* pathname, int append)
+{
+    return zipOpen3(pathname,append,NULL,NULL);
+}
+
+int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local)
+{
+  /* write the local header */
+  int err;
+  uInt size_filename = (uInt)strlen(filename);
+  uInt size_extrafield = size_extrafield_local;
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4);
+
+  if (err==ZIP_OK)
+  {
+    if(zi->ci.zip64)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */
+  }
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2);
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2);
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4);
+
+  // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */
+  if (err==ZIP_OK)
+  {
+    if(zi->ci.zip64)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */
+  }
+  if (err==ZIP_OK)
+  {
+    if(zi->ci.zip64)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */
+  }
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2);
+
+  if(zi->ci.zip64)
+  {
+    size_extrafield += 20;
+  }
+
+  if (err==ZIP_OK)
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2);
+
+  if ((err==ZIP_OK) && (size_filename > 0))
+  {
+    if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename)
+      err = ZIP_ERRNO;
+  }
+
+  if ((err==ZIP_OK) && (size_extrafield_local > 0))
+  {
+    if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local)
+      err = ZIP_ERRNO;
+  }
+
+
+  if ((err==ZIP_OK) && (zi->ci.zip64))
+  {
+      // write the Zip64 extended info
+      short HeaderID = 1;
+      short DataSize = 16;
+      ZPOS64_T CompressedSize = 0;
+      ZPOS64_T UncompressedSize = 0;
+
+      // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file)
+      zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream);
+
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)HeaderID,2);
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)DataSize,2);
+
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8);
+      err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8);
+  }
+
+  return err;
+}
+
+/*
+ NOTE.
+ When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped
+ before calling this function it can be done with zipRemoveExtraInfoBlock
+
+ It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize
+ unnecessary allocations.
+ */
+extern int ZEXPORT zipOpenNewFileInZip4_64 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                         const void* extrafield_local, uInt size_extrafield_local,
+                                         const void* extrafield_global, uInt size_extrafield_global,
+                                         const char* comment, int method, int level, int raw,
+                                         int windowBits,int memLevel, int strategy,
+                                         const char* password, uLong crcForCrypting,
+                                         uLong versionMadeBy, uLong flagBase, int zip64)
+{
+    zip64_internal* zi;
+    uInt size_filename;
+    uInt size_comment;
+    uInt i;
+    int err = ZIP_OK;
+
+#    ifdef NOCRYPT
+    (crcForCrypting);
+    if (password != NULL)
+        return ZIP_PARAMERROR;
+#    endif
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+
+#ifdef HAVE_BZIP2
+    if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED))
+      return ZIP_PARAMERROR;
+#else
+    if ((method!=0) && (method!=Z_DEFLATED))
+      return ZIP_PARAMERROR;
+#endif
+
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 1)
+    {
+        err = zipCloseFileInZip (file);
+        if (err != ZIP_OK)
+            return err;
+    }
+
+    if (filename==NULL)
+        filename="-";
+
+    if (comment==NULL)
+        size_comment = 0;
+    else
+        size_comment = (uInt)strlen(comment);
+
+    size_filename = (uInt)strlen(filename);
+
+    if (zipfi == NULL)
+        zi->ci.dosDate = 0;
+    else
+    {
+        if (zipfi->dosDate != 0)
+            zi->ci.dosDate = zipfi->dosDate;
+        else
+          zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date);
+    }
+
+    zi->ci.flag = flagBase;
+    if ((level==8) || (level==9))
+      zi->ci.flag |= 2;
+    if (level==2)
+      zi->ci.flag |= 4;
+    if (level==1)
+      zi->ci.flag |= 6;
+    if (password != NULL)
+      zi->ci.flag |= 1;
+
+    zi->ci.crc32 = 0;
+    zi->ci.method = method;
+    zi->ci.encrypt = 0;
+    zi->ci.stream_initialised = 0;
+    zi->ci.pos_in_buffered_data = 0;
+    zi->ci.raw = raw;
+    zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream);
+
+    zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment;
+    zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data
+
+    zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree);
+
+    zi->ci.size_centralExtra = size_extrafield_global;
+    zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4);
+    /* version info */
+    zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4);
+    zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/
+    zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/
+    zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/
+    zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2);
+    zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/
+
+    if (zipfi==NULL)
+        zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2);
+    else
+        zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2);
+
+    if (zipfi==NULL)
+        zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4);
+    else
+        zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4);
+
+    if(zi->ci.pos_local_header >= 0xffffffff)
+      zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4);
+    else
+      zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writing_offset,4);
+
+    for (i=0;i<size_filename;i++)
+        *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i);
+
+    for (i=0;i<size_extrafield_global;i++)
+        *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) =
+              *(((const char*)extrafield_global)+i);
+
+    for (i=0;i<size_comment;i++)
+        *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+
+              size_extrafield_global+i) = *(comment+i);
+    if (zi->ci.central_header == NULL)
+        return ZIP_INTERNALERROR;
+
+    zi->ci.zip64 = zip64;
+    zi->ci.totalCompressedData = 0;
+    zi->ci.totalUncompressedData = 0;
+    zi->ci.pos_zip64extrainfo = 0;
+
+    err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local);
+
+#ifdef HAVE_BZIP2
+    zi->ci.bstream.avail_in = (uInt)0;
+    zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+    zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+    zi->ci.bstream.total_in_hi32 = 0;
+    zi->ci.bstream.total_in_lo32 = 0;
+    zi->ci.bstream.total_out_hi32 = 0;
+    zi->ci.bstream.total_out_lo32 = 0;
+#endif
+
+    zi->ci.stream.avail_in = (uInt)0;
+    zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+    zi->ci.stream.next_out = zi->ci.buffered_data;
+    zi->ci.stream.total_in = 0;
+    zi->ci.stream.total_out = 0;
+    zi->ci.stream.data_type = Z_BINARY;
+
+#ifdef HAVE_BZIP2
+    if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+#else
+    if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+#endif
+    {
+        if(zi->ci.method == Z_DEFLATED)
+        {
+          zi->ci.stream.zalloc = (alloc_func)0;
+          zi->ci.stream.zfree = (free_func)0;
+          zi->ci.stream.opaque = (voidpf)0;
+
+          if (windowBits>0)
+              windowBits = -windowBits;
+
+          err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy);
+
+          if (err==Z_OK)
+              zi->ci.stream_initialised = Z_DEFLATED;
+        }
+        else if(zi->ci.method == Z_BZIP2ED)
+        {
+#ifdef HAVE_BZIP2
+            // Init BZip stuff here
+          zi->ci.bstream.bzalloc = 0;
+          zi->ci.bstream.bzfree = 0;
+          zi->ci.bstream.opaque = (voidpf)0;
+
+          err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35);
+          if(err == BZ_OK)
+            zi->ci.stream_initialised = Z_BZIP2ED;
+#endif
+        }
+
+    }
+
+#    ifndef NOCRYPT
+    zi->ci.crypt_header_size = 0;
+    if ((err==Z_OK) && (password != NULL))
+    {
+        unsigned char bufHead[RAND_HEAD_LEN];
+        unsigned int sizeHead;
+        zi->ci.encrypt = 1;
+        zi->ci.pcrc_32_tab = get_crc_table();
+        /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/
+
+        sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting);
+        zi->ci.crypt_header_size = sizeHead;
+
+        if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead)
+                err = ZIP_ERRNO;
+    }
+#    endif
+
+    if (err==Z_OK)
+        zi->in_opened_file_inzip = 1;
+    return err;
+}
+
+extern int ZEXPORT zipOpenNewFileInZip4 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                         const void* extrafield_local, uInt size_extrafield_local,
+                                         const void* extrafield_global, uInt size_extrafield_global,
+                                         const char* comment, int method, int level, int raw,
+                                         int windowBits,int memLevel, int strategy,
+                                         const char* password, uLong crcForCrypting,
+                                         uLong versionMadeBy, uLong flagBase)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, raw,
+                                 windowBits, memLevel, strategy,
+                                 password, crcForCrypting, versionMadeBy, flagBase, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip3 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                         const void* extrafield_local, uInt size_extrafield_local,
+                                         const void* extrafield_global, uInt size_extrafield_global,
+                                         const char* comment, int method, int level, int raw,
+                                         int windowBits,int memLevel, int strategy,
+                                         const char* password, uLong crcForCrypting)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, raw,
+                                 windowBits, memLevel, strategy,
+                                 password, crcForCrypting, VERSIONMADEBY, 0, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                         const void* extrafield_local, uInt size_extrafield_local,
+                                         const void* extrafield_global, uInt size_extrafield_global,
+                                         const char* comment, int method, int level, int raw,
+                                         int windowBits,int memLevel, int strategy,
+                                         const char* password, uLong crcForCrypting, int zip64)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, raw,
+                                 windowBits, memLevel, strategy,
+                                 password, crcForCrypting, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void* extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level, int raw)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, raw,
+                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                 NULL, 0, VERSIONMADEBY, 0, 0);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void* extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level, int raw, int zip64)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, raw,
+                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                 NULL, 0, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip64 (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void*extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level, int zip64)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, 0,
+                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                 NULL, 0, VERSIONMADEBY, 0, zip64);
+}
+
+extern int ZEXPORT zipOpenNewFileInZip (zipFile file, const char* filename, const zip_fileinfo* zipfi,
+                                        const void* extrafield_local, uInt size_extrafield_local,
+                                        const void*extrafield_global, uInt size_extrafield_global,
+                                        const char* comment, int method, int level)
+{
+    return zipOpenNewFileInZip4_64 (file, filename, zipfi,
+                                 extrafield_local, size_extrafield_local,
+                                 extrafield_global, size_extrafield_global,
+                                 comment, method, level, 0,
+                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
+                                 NULL, 0, VERSIONMADEBY, 0, 0);
+}
+
+local int zip64FlushWriteBuffer(zip64_internal* zi)
+{
+    int err=ZIP_OK;
+
+    if (zi->ci.encrypt != 0)
+    {
+#ifndef NOCRYPT
+        uInt i;
+        int t;
+        for (i=0;i<zi->ci.pos_in_buffered_data;i++)
+            zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t);
+#endif
+    }
+
+    if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data)
+      err = ZIP_ERRNO;
+
+    zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data;
+
+#ifdef HAVE_BZIP2
+    if(zi->ci.method == Z_BZIP2ED)
+    {
+      zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32;
+      zi->ci.bstream.total_in_lo32 = 0;
+      zi->ci.bstream.total_in_hi32 = 0;
+    }
+    else
+#endif
+    {
+      zi->ci.totalUncompressedData += zi->ci.stream.total_in;
+      zi->ci.stream.total_in = 0;
+    }
+
+
+    zi->ci.pos_in_buffered_data = 0;
+
+    return err;
+}
+
+extern int ZEXPORT zipWriteInFileInZip (zipFile file,const void* buf,unsigned int len)
+{
+    zip64_internal* zi;
+    int err=ZIP_OK;
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 0)
+        return ZIP_PARAMERROR;
+
+    zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len);
+
+#ifdef HAVE_BZIP2
+    if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw))
+    {
+      zi->ci.bstream.next_in = (void*)buf;
+      zi->ci.bstream.avail_in = len;
+      err = BZ_RUN_OK;
+
+      while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0))
+      {
+        if (zi->ci.bstream.avail_out == 0)
+        {
+          if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+            err = ZIP_ERRNO;
+          zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+          zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+        }
+
+
+        if(err != BZ_RUN_OK)
+          break;
+
+        if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+        {
+          uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32;
+//          uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32;
+          err=BZ2_bzCompress(&zi->ci.bstream,  BZ_RUN);
+
+          zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ;
+        }
+      }
+
+      if(err == BZ_RUN_OK)
+        err = ZIP_OK;
+    }
+    else
+#endif
+    {
+      zi->ci.stream.next_in = (Bytef*)buf;
+      zi->ci.stream.avail_in = len;
+
+      while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0))
+      {
+          if (zi->ci.stream.avail_out == 0)
+          {
+              if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+                  err = ZIP_ERRNO;
+              zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+              zi->ci.stream.next_out = zi->ci.buffered_data;
+          }
+
+
+          if(err != ZIP_OK)
+              break;
+
+          if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+          {
+              uLong uTotalOutBefore = zi->ci.stream.total_out;
+              err=deflate(&zi->ci.stream,  Z_NO_FLUSH);
+              if(uTotalOutBefore > zi->ci.stream.total_out)
+              {
+                int bBreak = 0;
+                bBreak++;
+              }
+
+              zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+          }
+          else
+          {
+              uInt copy_this,i;
+              if (zi->ci.stream.avail_in < zi->ci.stream.avail_out)
+                  copy_this = zi->ci.stream.avail_in;
+              else
+                  copy_this = zi->ci.stream.avail_out;
+
+              for (i = 0; i < copy_this; i++)
+                  *(((char*)zi->ci.stream.next_out)+i) =
+                      *(((const char*)zi->ci.stream.next_in)+i);
+              {
+                  zi->ci.stream.avail_in -= copy_this;
+                  zi->ci.stream.avail_out-= copy_this;
+                  zi->ci.stream.next_in+= copy_this;
+                  zi->ci.stream.next_out+= copy_this;
+                  zi->ci.stream.total_in+= copy_this;
+                  zi->ci.stream.total_out+= copy_this;
+                  zi->ci.pos_in_buffered_data += copy_this;
+              }
+          }
+      }// while(...)
+    }
+
+    return err;
+}
+
+extern int ZEXPORT zipCloseFileInZipRaw (zipFile file, uLong uncompressed_size, uLong crc32)
+{
+    return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32);
+}
+
+extern int ZEXPORT zipCloseFileInZipRaw64 (zipFile file, ZPOS64_T uncompressed_size, uLong crc32)
+{
+    zip64_internal* zi;
+    ZPOS64_T compressed_size;
+    uLong invalidValue = 0xffffffff;
+    short datasize = 0;
+    int err=ZIP_OK;
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 0)
+        return ZIP_PARAMERROR;
+    zi->ci.stream.avail_in = 0;
+
+    if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+                {
+                        while (err==ZIP_OK)
+                        {
+                                uLong uTotalOutBefore;
+                                if (zi->ci.stream.avail_out == 0)
+                                {
+                                        if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+                                                err = ZIP_ERRNO;
+                                        zi->ci.stream.avail_out = (uInt)Z_BUFSIZE;
+                                        zi->ci.stream.next_out = zi->ci.buffered_data;
+                                }
+                                uTotalOutBefore = zi->ci.stream.total_out;
+                                err=deflate(&zi->ci.stream,  Z_FINISH);
+                                zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ;
+                        }
+                }
+    else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+    {
+#ifdef HAVE_BZIP2
+      err = BZ_FINISH_OK;
+      while (err==BZ_FINISH_OK)
+      {
+        uLong uTotalOutBefore;
+        if (zi->ci.bstream.avail_out == 0)
+        {
+          if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO)
+            err = ZIP_ERRNO;
+          zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE;
+          zi->ci.bstream.next_out = (char*)zi->ci.buffered_data;
+        }
+        uTotalOutBefore = zi->ci.bstream.total_out_lo32;
+        err=BZ2_bzCompress(&zi->ci.bstream,  BZ_FINISH);
+        if(err == BZ_STREAM_END)
+          err = Z_STREAM_END;
+
+        zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore);
+      }
+
+      if(err == BZ_FINISH_OK)
+        err = ZIP_OK;
+#endif
+    }
+
+    if (err==Z_STREAM_END)
+        err=ZIP_OK; /* this is normal */
+
+    if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK))
+                {
+        if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO)
+            err = ZIP_ERRNO;
+                }
+
+    if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw))
+    {
+        int tmp_err = deflateEnd(&zi->ci.stream);
+        if (err == ZIP_OK)
+            err = tmp_err;
+        zi->ci.stream_initialised = 0;
+    }
+#ifdef HAVE_BZIP2
+    else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw))
+    {
+      int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream);
+                        if (err==ZIP_OK)
+                                err = tmperr;
+                        zi->ci.stream_initialised = 0;
+    }
+#endif
+
+    if (!zi->ci.raw)
+    {
+        crc32 = (uLong)zi->ci.crc32;
+        uncompressed_size = zi->ci.totalUncompressedData;
+    }
+    compressed_size = zi->ci.totalCompressedData;
+
+#    ifndef NOCRYPT
+    compressed_size += zi->ci.crypt_header_size;
+#    endif
+
+    // update Current Item crc and sizes,
+    if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff)
+    {
+      /*version Made by*/
+      zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2);
+      /*version needed*/
+      zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2);
+
+    }
+
+    zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/
+
+
+    if(compressed_size >= 0xffffffff)
+      zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/
+    else
+      zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/
+
+    /// set internal file attributes field
+    if (zi->ci.stream.data_type == Z_ASCII)
+        zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2);
+
+    if(uncompressed_size >= 0xffffffff)
+      zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/
+    else
+      zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/
+
+    // Add ZIP64 extra info field for uncompressed size
+    if(uncompressed_size >= 0xffffffff)
+      datasize += 8;
+
+    // Add ZIP64 extra info field for compressed size
+    if(compressed_size >= 0xffffffff)
+      datasize += 8;
+
+    // Add ZIP64 extra info field for relative offset to local file header of current file
+    if(zi->ci.pos_local_header >= 0xffffffff)
+      datasize += 8;
+
+    if(datasize > 0)
+    {
+      char* p = NULL;
+
+      if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree)
+      {
+        // we can not write more data to the buffer that we have room for.
+        return ZIP_BADZIPFILE;
+      }
+
+      p = zi->ci.central_header + zi->ci.size_centralheader;
+
+      // Add Extra Information Header for 'ZIP64 information'
+      zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID
+      p += 2;
+      zip64local_putValue_inmemory(p, datasize, 2); // DataSize
+      p += 2;
+
+      if(uncompressed_size >= 0xffffffff)
+      {
+        zip64local_putValue_inmemory(p, uncompressed_size, 8);
+        p += 8;
+      }
+
+      if(compressed_size >= 0xffffffff)
+      {
+        zip64local_putValue_inmemory(p, compressed_size, 8);
+        p += 8;
+      }
+
+      if(zi->ci.pos_local_header >= 0xffffffff)
+      {
+        zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8);
+        p += 8;
+      }
+
+      // Update how much extra free space we got in the memory buffer
+      // and increase the centralheader size so the new ZIP64 fields are included
+      // ( 4 below is the size of HeaderID and DataSize field )
+      zi->ci.size_centralExtraFree -= datasize + 4;
+      zi->ci.size_centralheader += datasize + 4;
+
+      // Update the extra info size field
+      zi->ci.size_centralExtra += datasize + 4;
+      zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2);
+    }
+
+    if (err==ZIP_OK)
+        err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader);
+
+    free(zi->ci.central_header);
+
+    if (err==ZIP_OK)
+    {
+        // Update the LocalFileHeader with the new values.
+
+        ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
+
+        if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            err = ZIP_ERRNO;
+
+        if (err==ZIP_OK)
+            err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */
+
+        if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff )
+        {
+          if(zi->ci.pos_zip64extrainfo > 0)
+          {
+            // Update the size in the ZIP64 extended field.
+            if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0)
+              err = ZIP_ERRNO;
+
+            if (err==ZIP_OK) /* compressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8);
+
+            if (err==ZIP_OK) /* uncompressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8);
+          }
+          else
+              err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal
+        }
+        else
+        {
+          if (err==ZIP_OK) /* compressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4);
+
+          if (err==ZIP_OK) /* uncompressed size, unknown */
+              err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4);
+        }
+
+        if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0)
+            err = ZIP_ERRNO;
+    }
+
+    zi->number_entry ++;
+    zi->in_opened_file_inzip = 0;
+
+    return err;
+}
+
+extern int ZEXPORT zipCloseFileInZip (zipFile file)
+{
+    return zipCloseFileInZipRaw (file,0,0);
+}
+
+int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip)
+{
+  int err = ZIP_OK;
+  ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writing_offset;
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4);
+
+  /*num disks*/
+    if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+  /*relative offset*/
+    if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8);
+
+  /*total disks*/ /* Do not support spawning of disk so always say 1 here*/
+    if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4);
+
+    return err;
+}
+
+int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip)
+{
+  int err = ZIP_OK;
+
+  uLong Zip64DataSize = 44;
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4);
+
+  if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ?
+
+  if (err==ZIP_OK) /* version made by */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
+
+  if (err==ZIP_OK) /* version needed */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);
+
+  if (err==ZIP_OK) /* number of this disk */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+  if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4);
+
+  if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
+    err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
+
+  if (err==ZIP_OK) /* total number of entries in the central dir */
+    err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8);
+
+  if (err==ZIP_OK) /* size of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8);
+
+  if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
+  {
+    ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset;
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8);
+  }
+  return err;
+}
+int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip)
+{
+  int err = ZIP_OK;
+
+  /*signature*/
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4);
+
+  if (err==ZIP_OK) /* number of this disk */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+
+  if (err==ZIP_OK) /* number of the disk with the start of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2);
+
+  if (err==ZIP_OK) /* total number of entries in the central dir on this disk */
+  {
+    {
+      if(zi->number_entry >= 0xFFFF)
+        err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
+      else
+        err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+    }
+  }
+
+  if (err==ZIP_OK) /* total number of entries in the central dir */
+  {
+    if(zi->number_entry >= 0xFFFF)
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2);
+  }
+
+  if (err==ZIP_OK) /* size of the central directory */
+    err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4);
+
+  if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */
+  {
+    ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset;
+    if(pos >= 0xffffffff)
+    {
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4);
+    }
+    else
+      err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writing_offset),4);
+  }
+
+   return err;
+}
+
+int Write_GlobalComment(zip64_internal* zi, const char* global_comment)
+{
+  int err = ZIP_OK;
+  uInt size_global_comment = 0;
+
+  if(global_comment != NULL)
+    size_global_comment = (uInt)strlen(global_comment);
+
+  err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2);
+
+  if (err == ZIP_OK && size_global_comment > 0)
+  {
+    if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment)
+      err = ZIP_ERRNO;
+  }
+  return err;
+}
+
+extern int ZEXPORT zipClose (zipFile file, const char* global_comment)
+{
+    zip64_internal* zi;
+    int err = 0;
+    uLong size_centraldir = 0;
+    ZPOS64_T centraldir_pos_inzip;
+    ZPOS64_T pos;
+
+    if (file == NULL)
+        return ZIP_PARAMERROR;
+
+    zi = (zip64_internal*)file;
+
+    if (zi->in_opened_file_inzip == 1)
+    {
+        err = zipCloseFileInZip (file);
+    }
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+    if (global_comment==NULL)
+        global_comment = zi->globalcomment;
+#endif
+
+    centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream);
+
+    if (err==ZIP_OK)
+    {
+        linkedlist_datablock_internal* ldi = zi->central_dir.first_block;
+        while (ldi!=NULL)
+        {
+            if ((err==ZIP_OK) && (ldi->filled_in_this_block>0))
+            {
+                if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block)
+                    err = ZIP_ERRNO;
+            }
+
+            size_centraldir += ldi->filled_in_this_block;
+            ldi = ldi->next_datablock;
+        }
+    }
+    free_linkedlist(&(zi->central_dir));
+
+    pos = centraldir_pos_inzip - zi->add_position_when_writing_offset;
+    if(pos >= 0xffffffff || zi->number_entry > 0xFFFF)
+    {
+      ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream);
+      Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
+
+      Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos);
+    }
+
+    if (err==ZIP_OK)
+      err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip);
+
+    if(err == ZIP_OK)
+      err = Write_GlobalComment(zi, global_comment);
+
+    if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0)
+        if (err == ZIP_OK)
+            err = ZIP_ERRNO;
+
+#ifndef NO_ADDFILEINEXISTINGZIP
+    TRYFREE(zi->globalcomment);
+#endif
+    TRYFREE(zi);
+
+    return err;
+}
+
+extern int ZEXPORT zipRemoveExtraInfoBlock (char* pData, int* dataLen, short sHeader)
+{
+  char* p = pData;
+  int size = 0;
+  char* pNewHeader;
+  char* pTmp;
+  short header;
+  short dataSize;
+
+  int retVal = ZIP_OK;
+
+  if(pData == NULL || *dataLen < 4)
+    return ZIP_PARAMERROR;
+
+  pNewHeader = (char*)ALLOC(*dataLen);
+  pTmp = pNewHeader;
+
+  while(p < (pData + *dataLen))
+  {
+    header = *(short*)p;
+    dataSize = *(((short*)p)+1);
+
+    if( header == sHeader ) // Header found.
+    {
+      p += dataSize + 4; // skip it. do not copy to temp buffer
+    }
+    else
+    {
+      // Extra Info block should not be removed, So copy it to the temp buffer.
+      memcpy(pTmp, p, dataSize + 4);
+      p += dataSize + 4;
+      size += dataSize + 4;
+    }
+
+  }
+
+  if(size < *dataLen)
+  {
+    // clean old extra info block.
+    memset(pData,0, *dataLen);
+
+    // copy the new extra info block over the old
+    if(size > 0)
+      memcpy(pData, pNewHeader, size);
+
+    // set the new extra info size
+    *dataLen = size;
+
+    retVal = ZIP_OK;
+  }
+  else
+    retVal = ZIP_ERRNO;
+
+  TRYFREE(pNewHeader);
+
+  return retVal;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/zip.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/zip.h
new file mode 100644
index 000000000..8aaebb623
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/minizip/zip.h
@@ -0,0 +1,362 @@
+/* zip.h -- IO on .zip files using zlib
+   Version 1.1, February 14h, 2010
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+         Modifications for Zip64 support
+         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+         For more info read MiniZip_info.txt
+
+         ---------------------------------------------------------------------------
+
+   Condition of use and distribution are the same than zlib :
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+        ---------------------------------------------------------------------------
+
+        Changes
+
+        See header of zip.h
+
+*/
+
+#ifndef _zip12_H
+#define _zip12_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//#define HAVE_BZIP2
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#ifndef _ZLIBIOAPI_H
+#include "ioapi.h"
+#endif
+
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
+#if defined(STRICTZIP) || defined(STRICTZIPUNZIP)
+/* like the STRICT of WIN32, we define a pointer that cannot be converted
+    from (void*) without cast */
+typedef struct TagzipFile__ { int unused; } zipFile__;
+typedef zipFile__ *zipFile;
+#else
+typedef voidp zipFile;
+#endif
+
+#define ZIP_OK                          (0)
+#define ZIP_EOF                         (0)
+#define ZIP_ERRNO                       (Z_ERRNO)
+#define ZIP_PARAMERROR                  (-102)
+#define ZIP_BADZIPFILE                  (-103)
+#define ZIP_INTERNALERROR               (-104)
+
+#ifndef DEF_MEM_LEVEL
+#  if MAX_MEM_LEVEL >= 8
+#    define DEF_MEM_LEVEL 8
+#  else
+#    define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#  endif
+#endif
+/* default memLevel */
+
+/* tm_zip contain date/time info */
+typedef struct tm_zip_s
+{
+    uInt tm_sec;            /* seconds after the minute - [0,59] */
+    uInt tm_min;            /* minutes after the hour - [0,59] */
+    uInt tm_hour;           /* hours since midnight - [0,23] */
+    uInt tm_mday;           /* day of the month - [1,31] */
+    uInt tm_mon;            /* months since January - [0,11] */
+    uInt tm_year;           /* years - [1980..2044] */
+} tm_zip;
+
+typedef struct
+{
+    tm_zip      tmz_date;       /* date in understandable format           */
+    uLong       dosDate;       /* if dos_date == 0, tmu_date is used      */
+/*    uLong       flag;        */   /* general purpose bit flag        2 bytes */
+
+    uLong       internal_fa;    /* internal file attributes        2 bytes */
+    uLong       external_fa;    /* external file attributes        4 bytes */
+} zip_fileinfo;
+
+typedef const char* zipcharpc;
+
+
+#define APPEND_STATUS_CREATE        (0)
+#define APPEND_STATUS_CREATEAFTER   (1)
+#define APPEND_STATUS_ADDINZIP      (2)
+
+extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append));
+extern zipFile ZEXPORT zipOpen64 OF((const void *pathname, int append));
+/*
+  Create a zipfile.
+     pathname contain on Windows XP a filename like "c:\\zlib\\zlib113.zip" or on
+       an Unix computer "zlib/zlib113.zip".
+     if the file pathname exist and append==APPEND_STATUS_CREATEAFTER, the zip
+       will be created at the end of the file.
+         (useful if the file contain a self extractor code)
+     if the file pathname exist and append==APPEND_STATUS_ADDINZIP, we will
+       add files in existing zip (be sure you don't add file that doesn't exist)
+     If the zipfile cannot be opened, the return value is NULL.
+     Else, the return value is a zipFile Handle, usable with other function
+       of this zip package.
+*/
+
+/* Note : there is no delete function into a zipfile.
+   If you want delete file into a zipfile, you must open a zipfile, and create another
+   Of couse, you can use RAW reading and writing to copy the file you did not want delte
+*/
+
+extern zipFile ZEXPORT zipOpen2 OF((const char *pathname,
+                                   int append,
+                                   zipcharpc* globalcomment,
+                                   zlib_filefunc_def* pzlib_filefunc_def));
+
+extern zipFile ZEXPORT zipOpen2_64 OF((const void *pathname,
+                                   int append,
+                                   zipcharpc* globalcomment,
+                                   zlib_filefunc64_def* pzlib_filefunc_def));
+
+extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file,
+                       const char* filename,
+                       const zip_fileinfo* zipfi,
+                       const void* extrafield_local,
+                       uInt size_extrafield_local,
+                       const void* extrafield_global,
+                       uInt size_extrafield_global,
+                       const char* comment,
+                       int method,
+                       int level));
+
+extern int ZEXPORT zipOpenNewFileInZip64 OF((zipFile file,
+                       const char* filename,
+                       const zip_fileinfo* zipfi,
+                       const void* extrafield_local,
+                       uInt size_extrafield_local,
+                       const void* extrafield_global,
+                       uInt size_extrafield_global,
+                       const char* comment,
+                       int method,
+                       int level,
+                       int zip64));
+
+/*
+  Open a file in the ZIP for writing.
+  filename : the filename in zip (if NULL, '-' without quote will be used
+  *zipfi contain supplemental information
+  if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local
+    contains the extrafield data the the local header
+  if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global
+    contains the extrafield data the the local header
+  if comment != NULL, comment contain the comment string
+  method contain the compression method (0 for store, Z_DEFLATED for deflate)
+  level contain the level of compression (can be Z_DEFAULT_COMPRESSION)
+  zip64 is set to 1 if a zip64 extended information block should be added to the local file header.
+                    this MUST be '1' if the uncompressed size is >= 0xffffffff.
+
+*/
+
+
+extern int ZEXPORT zipOpenNewFileInZip2 OF((zipFile file,
+                                            const char* filename,
+                                            const zip_fileinfo* zipfi,
+                                            const void* extrafield_local,
+                                            uInt size_extrafield_local,
+                                            const void* extrafield_global,
+                                            uInt size_extrafield_global,
+                                            const char* comment,
+                                            int method,
+                                            int level,
+                                            int raw));
+
+
+extern int ZEXPORT zipOpenNewFileInZip2_64 OF((zipFile file,
+                                            const char* filename,
+                                            const zip_fileinfo* zipfi,
+                                            const void* extrafield_local,
+                                            uInt size_extrafield_local,
+                                            const void* extrafield_global,
+                                            uInt size_extrafield_global,
+                                            const char* comment,
+                                            int method,
+                                            int level,
+                                            int raw,
+                                            int zip64));
+/*
+  Same than zipOpenNewFileInZip, except if raw=1, we write raw file
+ */
+
+extern int ZEXPORT zipOpenNewFileInZip3 OF((zipFile file,
+                                            const char* filename,
+                                            const zip_fileinfo* zipfi,
+                                            const void* extrafield_local,
+                                            uInt size_extrafield_local,
+                                            const void* extrafield_global,
+                                            uInt size_extrafield_global,
+                                            const char* comment,
+                                            int method,
+                                            int level,
+                                            int raw,
+                                            int windowBits,
+                                            int memLevel,
+                                            int strategy,
+                                            const char* password,
+                                            uLong crcForCrypting));
+
+extern int ZEXPORT zipOpenNewFileInZip3_64 OF((zipFile file,
+                                            const char* filename,
+                                            const zip_fileinfo* zipfi,
+                                            const void* extrafield_local,
+                                            uInt size_extrafield_local,
+                                            const void* extrafield_global,
+                                            uInt size_extrafield_global,
+                                            const char* comment,
+                                            int method,
+                                            int level,
+                                            int raw,
+                                            int windowBits,
+                                            int memLevel,
+                                            int strategy,
+                                            const char* password,
+                                            uLong crcForCrypting,
+                                            int zip64
+                                            ));
+
+/*
+  Same than zipOpenNewFileInZip2, except
+    windowBits,memLevel,,strategy : see parameter strategy in deflateInit2
+    password : crypting password (NULL for no crypting)
+    crcForCrypting : crc of file to compress (needed for crypting)
+ */
+
+extern int ZEXPORT zipOpenNewFileInZip4 OF((zipFile file,
+                                            const char* filename,
+                                            const zip_fileinfo* zipfi,
+                                            const void* extrafield_local,
+                                            uInt size_extrafield_local,
+                                            const void* extrafield_global,
+                                            uInt size_extrafield_global,
+                                            const char* comment,
+                                            int method,
+                                            int level,
+                                            int raw,
+                                            int windowBits,
+                                            int memLevel,
+                                            int strategy,
+                                            const char* password,
+                                            uLong crcForCrypting,
+                                            uLong versionMadeBy,
+                                            uLong flagBase
+                                            ));
+
+
+extern int ZEXPORT zipOpenNewFileInZip4_64 OF((zipFile file,
+                                            const char* filename,
+                                            const zip_fileinfo* zipfi,
+                                            const void* extrafield_local,
+                                            uInt size_extrafield_local,
+                                            const void* extrafield_global,
+                                            uInt size_extrafield_global,
+                                            const char* comment,
+                                            int method,
+                                            int level,
+                                            int raw,
+                                            int windowBits,
+                                            int memLevel,
+                                            int strategy,
+                                            const char* password,
+                                            uLong crcForCrypting,
+                                            uLong versionMadeBy,
+                                            uLong flagBase,
+                                            int zip64
+                                            ));
+/*
+  Same than zipOpenNewFileInZip4, except
+    versionMadeBy : value for Version made by field
+    flag : value for flag field (compression level info will be added)
+ */
+
+
+extern int ZEXPORT zipWriteInFileInZip OF((zipFile file,
+                       const void* buf,
+                       unsigned len));
+/*
+  Write data in the zipfile
+*/
+
+extern int ZEXPORT zipCloseFileInZip OF((zipFile file));
+/*
+  Close the current file in the zipfile
+*/
+
+extern int ZEXPORT zipCloseFileInZipRaw OF((zipFile file,
+                                            uLong uncompressed_size,
+                                            uLong crc32));
+
+extern int ZEXPORT zipCloseFileInZipRaw64 OF((zipFile file,
+                                            ZPOS64_T uncompressed_size,
+                                            uLong crc32));
+
+/*
+  Close the current file in the zipfile, for file opened with
+    parameter raw=1 in zipOpenNewFileInZip2
+  uncompressed_size and crc32 are value for the uncompressed size
+*/
+
+extern int ZEXPORT zipClose OF((zipFile file,
+                const char* global_comment));
+/*
+  Close the zipfile
+*/
+
+
+extern int ZEXPORT zipRemoveExtraInfoBlock OF((char* pData, int* dataLen, short sHeader));
+/*
+  zipRemoveExtraInfoBlock -  Added by Mathias Svensson
+
+  Remove extra information block from a extra information data for the local file header or central directory header
+
+  It is needed to remove ZIP64 extra information blocks when before data is written if using RAW mode.
+
+  0x0001 is the signature header for the ZIP64 extra information blocks
+
+  usage.
+                        Remove ZIP64 Extra information from a central director extra field data
+              zipRemoveExtraInfoBlock(pCenDirExtraFieldData, &nCenDirExtraFieldDataLen, 0x0001);
+
+                        Remove ZIP64 Extra information from a Local File Header extra field data
+        zipRemoveExtraInfoBlock(pLocalHeaderExtraFieldData, &nLocalHeaderExtraFieldDataLen, 0x0001);
+*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _zip64_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/example.pas b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/example.pas
new file mode 100644
index 000000000..5518b36a7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/example.pas
@@ -0,0 +1,599 @@
+(* example.c -- usage example of the zlib compression library
+ * Copyright (C) 1995-2003 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Pascal translation
+ * Copyright (C) 1998 by Jacques Nomssi Nzali.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *
+ * Adaptation to the zlibpas interface
+ * Copyright (C) 2003 by Cosmin Truta.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *)
+
+program example;
+
+{$DEFINE TEST_COMPRESS}
+{DO NOT $DEFINE TEST_GZIO}
+{$DEFINE TEST_DEFLATE}
+{$DEFINE TEST_INFLATE}
+{$DEFINE TEST_FLUSH}
+{$DEFINE TEST_SYNC}
+{$DEFINE TEST_DICT}
+
+uses SysUtils, zlibpas;
+
+const TESTFILE = 'foo.gz';
+
+(* "hello world" would be more standard, but the repeated "hello"
+ * stresses the compression code better, sorry...
+ *)
+const hello: PChar = 'hello, hello!';
+
+const dictionary: PChar = 'hello';
+
+var dictId: LongInt; (* Adler32 value of the dictionary *)
+
+procedure CHECK_ERR(err: Integer; msg: String);
+begin
+  if err <> Z_OK then
+  begin
+    WriteLn(msg, ' error: ', err);
+    Halt(1);
+  end;
+end;
+
+procedure EXIT_ERR(const msg: String);
+begin
+  WriteLn('Error: ', msg);
+  Halt(1);
+end;
+
+(* ===========================================================================
+ * Test compress and uncompress
+ *)
+{$IFDEF TEST_COMPRESS}
+procedure test_compress(compr: Pointer; comprLen: LongInt;
+                        uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    len: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  err := compress(compr, comprLen, hello, len);
+  CHECK_ERR(err, 'compress');
+
+  StrCopy(PChar(uncompr), 'garbage');
+
+  err := uncompress(uncompr, uncomprLen, compr, comprLen);
+  CHECK_ERR(err, 'uncompress');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad uncompress')
+  else
+    WriteLn('uncompress(): ', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test read/write of .gz files
+ *)
+{$IFDEF TEST_GZIO}
+procedure test_gzio(const fname: PChar; (* compressed file name *)
+                    uncompr: Pointer;
+                    uncomprLen: LongInt);
+var err: Integer;
+    len: Integer;
+    zfile: gzFile;
+    pos: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  zfile := gzopen(fname, 'wb');
+  if zfile = NIL then
+  begin
+    WriteLn('gzopen error');
+    Halt(1);
+  end;
+  gzputc(zfile, 'h');
+  if gzputs(zfile, 'ello') <> 4 then
+  begin
+    WriteLn('gzputs err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$IFDEF GZ_FORMAT_STRING}
+  if gzprintf(zfile, ', %s!', 'hello') <> 8 then
+  begin
+    WriteLn('gzprintf err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$ELSE}
+  if gzputs(zfile, ', hello!') <> 8 then
+  begin
+    WriteLn('gzputs err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  {$ENDIF}
+  gzseek(zfile, 1, SEEK_CUR); (* add one zero byte *)
+  gzclose(zfile);
+
+  zfile := gzopen(fname, 'rb');
+  if zfile = NIL then
+  begin
+    WriteLn('gzopen error');
+    Halt(1);
+  end;
+
+  StrCopy(PChar(uncompr), 'garbage');
+
+  if gzread(zfile, uncompr, uncomprLen) <> len then
+  begin
+    WriteLn('gzread err: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  if StrComp(PChar(uncompr), hello) <> 0 then
+  begin
+    WriteLn('bad gzread: ', PChar(uncompr));
+    Halt(1);
+  end
+  else
+    WriteLn('gzread(): ', PChar(uncompr));
+
+  pos := gzseek(zfile, -8, SEEK_CUR);
+  if (pos <> 6) or (gztell(zfile) <> pos) then
+  begin
+    WriteLn('gzseek error, pos=', pos, ', gztell=', gztell(zfile));
+    Halt(1);
+  end;
+
+  if gzgetc(zfile) <> ' ' then
+  begin
+    WriteLn('gzgetc error');
+    Halt(1);
+  end;
+
+  if gzungetc(' ', zfile) <> ' ' then
+  begin
+    WriteLn('gzungetc error');
+    Halt(1);
+  end;
+
+  gzgets(zfile, PChar(uncompr), uncomprLen);
+  uncomprLen := StrLen(PChar(uncompr));
+  if uncomprLen <> 7 then (* " hello!" *)
+  begin
+    WriteLn('gzgets err after gzseek: ', gzerror(zfile, err));
+    Halt(1);
+  end;
+  if StrComp(PChar(uncompr), hello + 6) <> 0 then
+  begin
+    WriteLn('bad gzgets after gzseek');
+    Halt(1);
+  end
+  else
+    WriteLn('gzgets() after gzseek: ', PChar(uncompr));
+
+  gzclose(zfile);
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with small buffers
+ *)
+{$IFDEF TEST_DEFLATE}
+procedure test_deflate(compr: Pointer; comprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+    len: LongInt;
+begin
+  len := StrLen(hello)+1;
+
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_in := hello;
+  c_stream.next_out := compr;
+
+  while (c_stream.total_in <> len) and
+        (c_stream.total_out < comprLen) do
+  begin
+    c_stream.avail_out := 1; { force small buffers }
+    c_stream.avail_in := 1;
+    err := deflate(c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, 'deflate');
+  end;
+
+  (* Finish the stream, still forcing small buffers: *)
+  while TRUE do
+  begin
+    c_stream.avail_out := 1;
+    err := deflate(c_stream, Z_FINISH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'deflate');
+  end;
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with small buffers
+ *)
+{$IFDEF TEST_INFLATE}
+procedure test_inflate(compr: Pointer; comprLen : LongInt;
+                       uncompr: Pointer; uncomprLen : LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := 0;
+  d_stream.next_out := uncompr;
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  while (d_stream.total_out < uncomprLen) and
+        (d_stream.total_in < comprLen) do
+  begin
+    d_stream.avail_out := 1; (* force small buffers *)
+    d_stream.avail_in := 1;
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'inflate');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad inflate')
+  else
+    WriteLn('inflate(): ', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with large buffers and dynamic change of compression level
+ *)
+{$IFDEF TEST_DEFLATE}
+procedure test_large_deflate(compr: Pointer; comprLen: LongInt;
+                             uncompr: Pointer; uncomprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+begin
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_BEST_SPEED);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_out := compr;
+  c_stream.avail_out := Integer(comprLen);
+
+  (* At this point, uncompr is still mostly zeroes, so it should compress
+   * very well:
+   *)
+  c_stream.next_in := uncompr;
+  c_stream.avail_in := Integer(uncomprLen);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+  if c_stream.avail_in <> 0 then
+    EXIT_ERR('deflate not greedy');
+
+  (* Feed in already compressed data and switch to no compression: *)
+  deflateParams(c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
+  c_stream.next_in := compr;
+  c_stream.avail_in := Integer(comprLen div 2);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  (* Switch back to compressing mode: *)
+  deflateParams(c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
+  c_stream.next_in := uncompr;
+  c_stream.avail_in := Integer(uncomprLen);
+  err := deflate(c_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    EXIT_ERR('deflate should report Z_STREAM_END');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with large buffers
+ *)
+{$IFDEF TEST_INFLATE}
+procedure test_large_inflate(compr: Pointer; comprLen: LongInt;
+                             uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := Integer(comprLen);
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  while TRUE do
+  begin
+    d_stream.next_out := uncompr;            (* discard the output *)
+    d_stream.avail_out := Integer(uncomprLen);
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    CHECK_ERR(err, 'large inflate');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if d_stream.total_out <> 2 * uncomprLen + comprLen div 2 then
+  begin
+    WriteLn('bad large inflate: ', d_stream.total_out);
+    Halt(1);
+  end
+  else
+    WriteLn('large_inflate(): OK');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with full flush
+ *)
+{$IFDEF TEST_FLUSH}
+procedure test_flush(compr: Pointer; var comprLen : LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+    len: Integer;
+begin
+  len := StrLen(hello)+1;
+
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_DEFAULT_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  c_stream.next_in := hello;
+  c_stream.next_out := compr;
+  c_stream.avail_in := 3;
+  c_stream.avail_out := Integer(comprLen);
+  err := deflate(c_stream, Z_FULL_FLUSH);
+  CHECK_ERR(err, 'deflate');
+
+  Inc(PByteArray(compr)^[3]); (* force an error in first compressed block *)
+  c_stream.avail_in := len - 3;
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    CHECK_ERR(err, 'deflate');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+
+  comprLen := c_stream.total_out;
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflateSync()
+ *)
+{$IFDEF TEST_SYNC}
+procedure test_sync(compr: Pointer; comprLen: LongInt;
+                    uncompr: Pointer; uncomprLen : LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := 2; (* just read the zlib header *)
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  d_stream.next_out := uncompr;
+  d_stream.avail_out := Integer(uncomprLen);
+
+  inflate(d_stream, Z_NO_FLUSH);
+  CHECK_ERR(err, 'inflate');
+
+  d_stream.avail_in := Integer(comprLen-2);   (* read all compressed data *)
+  err := inflateSync(d_stream);               (* but skip the damaged part *)
+  CHECK_ERR(err, 'inflateSync');
+
+  err := inflate(d_stream, Z_FINISH);
+  if err <> Z_DATA_ERROR then
+    EXIT_ERR('inflate should report DATA_ERROR');
+    (* Because of incorrect adler32 *)
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  WriteLn('after inflateSync(): hel', PChar(uncompr));
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test deflate with preset dictionary
+ *)
+{$IFDEF TEST_DICT}
+procedure test_dict_deflate(compr: Pointer; comprLen: LongInt);
+var c_stream: z_stream; (* compression stream *)
+    err: Integer;
+begin
+  c_stream.zalloc := NIL;
+  c_stream.zfree := NIL;
+  c_stream.opaque := NIL;
+
+  err := deflateInit(c_stream, Z_BEST_COMPRESSION);
+  CHECK_ERR(err, 'deflateInit');
+
+  err := deflateSetDictionary(c_stream, dictionary, StrLen(dictionary));
+  CHECK_ERR(err, 'deflateSetDictionary');
+
+  dictId := c_stream.adler;
+  c_stream.next_out := compr;
+  c_stream.avail_out := Integer(comprLen);
+
+  c_stream.next_in := hello;
+  c_stream.avail_in := StrLen(hello)+1;
+
+  err := deflate(c_stream, Z_FINISH);
+  if err <> Z_STREAM_END then
+    EXIT_ERR('deflate should report Z_STREAM_END');
+
+  err := deflateEnd(c_stream);
+  CHECK_ERR(err, 'deflateEnd');
+end;
+{$ENDIF}
+
+(* ===========================================================================
+ * Test inflate with a preset dictionary
+ *)
+{$IFDEF TEST_DICT}
+procedure test_dict_inflate(compr: Pointer; comprLen: LongInt;
+                            uncompr: Pointer; uncomprLen: LongInt);
+var err: Integer;
+    d_stream: z_stream; (* decompression stream *)
+begin
+  StrCopy(PChar(uncompr), 'garbage');
+
+  d_stream.zalloc := NIL;
+  d_stream.zfree := NIL;
+  d_stream.opaque := NIL;
+
+  d_stream.next_in := compr;
+  d_stream.avail_in := Integer(comprLen);
+
+  err := inflateInit(d_stream);
+  CHECK_ERR(err, 'inflateInit');
+
+  d_stream.next_out := uncompr;
+  d_stream.avail_out := Integer(uncomprLen);
+
+  while TRUE do
+  begin
+    err := inflate(d_stream, Z_NO_FLUSH);
+    if err = Z_STREAM_END then
+      break;
+    if err = Z_NEED_DICT then
+    begin
+      if d_stream.adler <> dictId then
+        EXIT_ERR('unexpected dictionary');
+      err := inflateSetDictionary(d_stream, dictionary, StrLen(dictionary));
+    end;
+    CHECK_ERR(err, 'inflate with dict');
+  end;
+
+  err := inflateEnd(d_stream);
+  CHECK_ERR(err, 'inflateEnd');
+
+  if StrComp(PChar(uncompr), hello) <> 0 then
+    EXIT_ERR('bad inflate with dict')
+  else
+    WriteLn('inflate with dictionary: ', PChar(uncompr));
+end;
+{$ENDIF}
+
+var compr, uncompr: Pointer;
+    comprLen, uncomprLen: LongInt;
+
+begin
+  if zlibVersion^ <> ZLIB_VERSION[1] then
+    EXIT_ERR('Incompatible zlib version');
+
+  WriteLn('zlib version: ', zlibVersion);
+  WriteLn('zlib compile flags: ', Format('0x%x', [zlibCompileFlags]));
+
+  comprLen := 10000 * SizeOf(Integer); (* don't overflow on MSDOS *)
+  uncomprLen := comprLen;
+  GetMem(compr, comprLen);
+  GetMem(uncompr, uncomprLen);
+  if (compr = NIL) or (uncompr = NIL) then
+    EXIT_ERR('Out of memory');
+  (* compr and uncompr are cleared to avoid reading uninitialized
+   * data and to ensure that uncompr compresses well.
+   *)
+  FillChar(compr^, comprLen, 0);
+  FillChar(uncompr^, uncomprLen, 0);
+
+  {$IFDEF TEST_COMPRESS}
+  WriteLn('** Testing compress');
+  test_compress(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_GZIO}
+  WriteLn('** Testing gzio');
+  if ParamCount >= 1 then
+    test_gzio(ParamStr(1), uncompr, uncomprLen)
+  else
+    test_gzio(TESTFILE, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_DEFLATE}
+  WriteLn('** Testing deflate with small buffers');
+  test_deflate(compr, comprLen);
+  {$ENDIF}
+  {$IFDEF TEST_INFLATE}
+  WriteLn('** Testing inflate with small buffers');
+  test_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_DEFLATE}
+  WriteLn('** Testing deflate with large buffers');
+  test_large_deflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+  {$IFDEF TEST_INFLATE}
+  WriteLn('** Testing inflate with large buffers');
+  test_large_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  {$IFDEF TEST_FLUSH}
+  WriteLn('** Testing deflate with full flush');
+  test_flush(compr, comprLen);
+  {$ENDIF}
+  {$IFDEF TEST_SYNC}
+  WriteLn('** Testing inflateSync');
+  test_sync(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+  comprLen := uncomprLen;
+
+  {$IFDEF TEST_DICT}
+  WriteLn('** Testing deflate and inflate with preset dictionary');
+  test_dict_deflate(compr, comprLen);
+  test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
+  {$ENDIF}
+
+  FreeMem(compr, comprLen);
+  FreeMem(uncompr, uncomprLen);
+end.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/readme.txt
new file mode 100644
index 000000000..60e87c8a3
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/readme.txt
@@ -0,0 +1,76 @@
+
+This directory contains a Pascal (Delphi, Kylix) interface to the
+zlib data compression library.
+
+
+Directory listing
+=================
+
+zlibd32.mak     makefile for Borland C++
+example.pas     usage example of zlib
+zlibpas.pas     the Pascal interface to zlib
+readme.txt      this file
+
+
+Compatibility notes
+===================
+
+- Although the name "zlib" would have been more normal for the
+  zlibpas unit, this name is already taken by Borland's ZLib unit.
+  This is somehow unfortunate, because that unit is not a genuine
+  interface to the full-fledged zlib functionality, but a suite of
+  class wrappers around zlib streams.  Other essential features,
+  such as checksums, are missing.
+  It would have been more appropriate for that unit to have a name
+  like "ZStreams", or something similar.
+
+- The C and zlib-supplied types int, uInt, long, uLong, etc. are
+  translated directly into Pascal types of similar sizes (Integer,
+  LongInt, etc.), to avoid namespace pollution.  In particular,
+  there is no conversion of unsigned int into a Pascal unsigned
+  integer.  The Word type is non-portable and has the same size
+  (16 bits) both in a 16-bit and in a 32-bit environment, unlike
+  Integer.  Even if there is a 32-bit Cardinal type, there is no
+  real need for unsigned int in zlib under a 32-bit environment.
+
+- Except for the callbacks, the zlib function interfaces are
+  assuming the calling convention normally used in Pascal
+  (__pascal for DOS and Windows16, __fastcall for Windows32).
+  Since the cdecl keyword is used, the old Turbo Pascal does
+  not work with this interface.
+
+- The gz* function interfaces are not translated, to avoid
+  interfacing problems with the C runtime library.  Besides,
+    gzprintf(gzFile file, const char *format, ...)
+  cannot be translated into Pascal.
+
+
+Legal issues
+============
+
+The zlibpas interface is:
+  Copyright (C) 1995-2003 Jean-loup Gailly and Mark Adler.
+  Copyright (C) 1998 by Bob Dellaca.
+  Copyright (C) 2003 by Cosmin Truta.
+
+The example program is:
+  Copyright (C) 1995-2003 by Jean-loup Gailly.
+  Copyright (C) 1998,1999,2000 by Jacques Nomssi Nzali.
+  Copyright (C) 2003 by Cosmin Truta.
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/zlibd32.mak b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/zlibd32.mak
new file mode 100644
index 000000000..9bb00b7cc
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/zlibd32.mak
@@ -0,0 +1,99 @@
+# Makefile for zlib
+# For use with Delphi and C++ Builder under Win32
+# Updated for zlib 1.2.x by Cosmin Truta
+
+# ------------ Borland C++ ------------
+
+# This project uses the Delphi (fastcall/register) calling convention:
+LOC = -DZEXPORT=__fastcall -DZEXPORTVA=__cdecl
+
+CC = bcc32
+LD = bcc32
+AR = tlib
+# do not use "-pr" in CFLAGS
+CFLAGS = -a -d -k- -O2 $(LOC)
+LDFLAGS =
+
+
+# variables
+ZLIB_LIB = zlib.lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# For the sake of the old Borland make,
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+
+# testing
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+
+# cleanup
+clean:
+	-del *.obj
+	-del *.exe
+	-del *.lib
+	-del *.tds
+	-del zlib.bak
+	-del foo.gz
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/zlibpas.pas b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/zlibpas.pas
new file mode 100644
index 000000000..a0dff11b5
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/pascal/zlibpas.pas
@@ -0,0 +1,276 @@
+(* zlibpas -- Pascal interface to the zlib data compression library
+ *
+ * Copyright (C) 2003 Cosmin Truta.
+ * Derived from original sources by Bob Dellaca.
+ * For conditions of distribution and use, see copyright notice in readme.txt
+ *)
+
+unit zlibpas;
+
+interface
+
+const
+  ZLIB_VERSION = '1.2.11';
+  ZLIB_VERNUM  = $12a0;
+
+type
+  alloc_func = function(opaque: Pointer; items, size: Integer): Pointer;
+                 cdecl;
+  free_func  = procedure(opaque, address: Pointer);
+                 cdecl;
+
+  in_func    = function(opaque: Pointer; var buf: PByte): Integer;
+                 cdecl;
+  out_func   = function(opaque: Pointer; buf: PByte; size: Integer): Integer;
+                 cdecl;
+
+  z_streamp = ^z_stream;
+  z_stream = packed record
+    next_in: PChar;       (* next input byte *)
+    avail_in: Integer;    (* number of bytes available at next_in *)
+    total_in: LongInt;    (* total nb of input bytes read so far *)
+
+    next_out: PChar;      (* next output byte should be put there *)
+    avail_out: Integer;   (* remaining free space at next_out *)
+    total_out: LongInt;   (* total nb of bytes output so far *)
+
+    msg: PChar;           (* last error message, NULL if no error *)
+    state: Pointer;       (* not visible by applications *)
+
+    zalloc: alloc_func;   (* used to allocate the internal state *)
+    zfree: free_func;     (* used to free the internal state *)
+    opaque: Pointer;      (* private data object passed to zalloc and zfree *)
+
+    data_type: Integer;   (* best guess about the data type: ascii or binary *)
+    adler: LongInt;       (* adler32 value of the uncompressed data *)
+    reserved: LongInt;    (* reserved for future use *)
+  end;
+
+  gz_headerp = ^gz_header;
+  gz_header = packed record
+    text: Integer;        (* true if compressed data believed to be text *)
+    time: LongInt;        (* modification time *)
+    xflags: Integer;      (* extra flags (not used when writing a gzip file) *)
+    os: Integer;          (* operating system *)
+    extra: PChar;         (* pointer to extra field or Z_NULL if none *)
+    extra_len: Integer;   (* extra field length (valid if extra != Z_NULL) *)
+    extra_max: Integer;   (* space at extra (only when reading header) *)
+    name: PChar;          (* pointer to zero-terminated file name or Z_NULL *)
+    name_max: Integer;    (* space at name (only when reading header) *)
+    comment: PChar;       (* pointer to zero-terminated comment or Z_NULL *)
+    comm_max: Integer;    (* space at comment (only when reading header) *)
+    hcrc: Integer;        (* true if there was or will be a header crc *)
+    done: Integer;        (* true when done reading gzip header *)
+  end;
+
+(* constants *)
+const
+  Z_NO_FLUSH      = 0;
+  Z_PARTIAL_FLUSH = 1;
+  Z_SYNC_FLUSH    = 2;
+  Z_FULL_FLUSH    = 3;
+  Z_FINISH        = 4;
+  Z_BLOCK         = 5;
+  Z_TREES         = 6;
+
+  Z_OK            =  0;
+  Z_STREAM_END    =  1;
+  Z_NEED_DICT     =  2;
+  Z_ERRNO         = -1;
+  Z_STREAM_ERROR  = -2;
+  Z_DATA_ERROR    = -3;
+  Z_MEM_ERROR     = -4;
+  Z_BUF_ERROR     = -5;
+  Z_VERSION_ERROR = -6;
+
+  Z_NO_COMPRESSION       =  0;
+  Z_BEST_SPEED           =  1;
+  Z_BEST_COMPRESSION     =  9;
+  Z_DEFAULT_COMPRESSION  = -1;
+
+  Z_FILTERED            = 1;
+  Z_HUFFMAN_ONLY        = 2;
+  Z_RLE                 = 3;
+  Z_FIXED               = 4;
+  Z_DEFAULT_STRATEGY    = 0;
+
+  Z_BINARY   = 0;
+  Z_TEXT     = 1;
+  Z_ASCII    = 1;
+  Z_UNKNOWN  = 2;
+
+  Z_DEFLATED = 8;
+
+(* basic functions *)
+function zlibVersion: PChar;
+function deflateInit(var strm: z_stream; level: Integer): Integer;
+function deflate(var strm: z_stream; flush: Integer): Integer;
+function deflateEnd(var strm: z_stream): Integer;
+function inflateInit(var strm: z_stream): Integer;
+function inflate(var strm: z_stream; flush: Integer): Integer;
+function inflateEnd(var strm: z_stream): Integer;
+
+(* advanced functions *)
+function deflateInit2(var strm: z_stream; level, method, windowBits,
+                      memLevel, strategy: Integer): Integer;
+function deflateSetDictionary(var strm: z_stream; const dictionary: PChar;
+                              dictLength: Integer): Integer;
+function deflateCopy(var dest, source: z_stream): Integer;
+function deflateReset(var strm: z_stream): Integer;
+function deflateParams(var strm: z_stream; level, strategy: Integer): Integer;
+function deflateTune(var strm: z_stream; good_length, max_lazy, nice_length, max_chain: Integer): Integer;
+function deflateBound(var strm: z_stream; sourceLen: LongInt): LongInt;
+function deflatePending(var strm: z_stream; var pending: Integer; var bits: Integer): Integer;
+function deflatePrime(var strm: z_stream; bits, value: Integer): Integer;
+function deflateSetHeader(var strm: z_stream; head: gz_header): Integer;
+function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
+function inflateSetDictionary(var strm: z_stream; const dictionary: PChar;
+                              dictLength: Integer): Integer;
+function inflateSync(var strm: z_stream): Integer;
+function inflateCopy(var dest, source: z_stream): Integer;
+function inflateReset(var strm: z_stream): Integer;
+function inflateReset2(var strm: z_stream; windowBits: Integer): Integer;
+function inflatePrime(var strm: z_stream; bits, value: Integer): Integer;
+function inflateMark(var strm: z_stream): LongInt;
+function inflateGetHeader(var strm: z_stream; var head: gz_header): Integer;
+function inflateBackInit(var strm: z_stream;
+                         windowBits: Integer; window: PChar): Integer;
+function inflateBack(var strm: z_stream; in_fn: in_func; in_desc: Pointer;
+                     out_fn: out_func; out_desc: Pointer): Integer;
+function inflateBackEnd(var strm: z_stream): Integer;
+function zlibCompileFlags: LongInt;
+
+(* utility functions *)
+function compress(dest: PChar; var destLen: LongInt;
+                  const source: PChar; sourceLen: LongInt): Integer;
+function compress2(dest: PChar; var destLen: LongInt;
+                  const source: PChar; sourceLen: LongInt;
+                  level: Integer): Integer;
+function compressBound(sourceLen: LongInt): LongInt;
+function uncompress(dest: PChar; var destLen: LongInt;
+                    const source: PChar; sourceLen: LongInt): Integer;
+
+(* checksum functions *)
+function adler32(adler: LongInt; const buf: PChar; len: Integer): LongInt;
+function adler32_combine(adler1, adler2, len2: LongInt): LongInt;
+function crc32(crc: LongInt; const buf: PChar; len: Integer): LongInt;
+function crc32_combine(crc1, crc2, len2: LongInt): LongInt;
+
+(* various hacks, don't look :) *)
+function deflateInit_(var strm: z_stream; level: Integer;
+                      const version: PChar; stream_size: Integer): Integer;
+function inflateInit_(var strm: z_stream; const version: PChar;
+                      stream_size: Integer): Integer;
+function deflateInit2_(var strm: z_stream;
+                       level, method, windowBits, memLevel, strategy: Integer;
+                       const version: PChar; stream_size: Integer): Integer;
+function inflateInit2_(var strm: z_stream; windowBits: Integer;
+                       const version: PChar; stream_size: Integer): Integer;
+function inflateBackInit_(var strm: z_stream;
+                          windowBits: Integer; window: PChar;
+                          const version: PChar; stream_size: Integer): Integer;
+
+
+implementation
+
+{$L adler32.obj}
+{$L compress.obj}
+{$L crc32.obj}
+{$L deflate.obj}
+{$L infback.obj}
+{$L inffast.obj}
+{$L inflate.obj}
+{$L inftrees.obj}
+{$L trees.obj}
+{$L uncompr.obj}
+{$L zutil.obj}
+
+function adler32; external;
+function adler32_combine; external;
+function compress; external;
+function compress2; external;
+function compressBound; external;
+function crc32; external;
+function crc32_combine; external;
+function deflate; external;
+function deflateBound; external;
+function deflateCopy; external;
+function deflateEnd; external;
+function deflateInit_; external;
+function deflateInit2_; external;
+function deflateParams; external;
+function deflatePending; external;
+function deflatePrime; external;
+function deflateReset; external;
+function deflateSetDictionary; external;
+function deflateSetHeader; external;
+function deflateTune; external;
+function inflate; external;
+function inflateBack; external;
+function inflateBackEnd; external;
+function inflateBackInit_; external;
+function inflateCopy; external;
+function inflateEnd; external;
+function inflateGetHeader; external;
+function inflateInit_; external;
+function inflateInit2_; external;
+function inflateMark; external;
+function inflatePrime; external;
+function inflateReset; external;
+function inflateReset2; external;
+function inflateSetDictionary; external;
+function inflateSync; external;
+function uncompress; external;
+function zlibCompileFlags; external;
+function zlibVersion; external;
+
+function deflateInit(var strm: z_stream; level: Integer): Integer;
+begin
+  Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function deflateInit2(var strm: z_stream; level, method, windowBits, memLevel,
+                      strategy: Integer): Integer;
+begin
+  Result := deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
+                          ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateInit(var strm: z_stream): Integer;
+begin
+  Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateInit2(var strm: z_stream; windowBits: Integer): Integer;
+begin
+  Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function inflateBackInit(var strm: z_stream;
+                         windowBits: Integer; window: PChar): Integer;
+begin
+  Result := inflateBackInit_(strm, windowBits, window,
+                             ZLIB_VERSION, sizeof(z_stream));
+end;
+
+function _malloc(Size: Integer): Pointer; cdecl;
+begin
+  GetMem(Result, Size);
+end;
+
+procedure _free(Block: Pointer); cdecl;
+begin
+  FreeMem(Block);
+end;
+
+procedure _memset(P: Pointer; B: Byte; count: Integer); cdecl;
+begin
+  FillChar(P^, count, B);
+end;
+
+procedure _memcpy(dest, source: Pointer; count: Integer); cdecl;
+begin
+  Move(source^, dest^, count);
+end;
+
+end.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/Makefile b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/Makefile
new file mode 100644
index 000000000..0e2594c80
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/Makefile
@@ -0,0 +1,42 @@
+CFLAGS=-O
+
+puff: puff.o pufftest.o
+
+puff.o: puff.h
+
+pufftest.o: puff.h
+
+test: puff
+	puff zeros.raw
+
+puft: puff.c puff.h pufftest.o
+	cc -fprofile-arcs -ftest-coverage -o puft puff.c pufftest.o
+
+# puff full coverage test (should say 100%)
+cov: puft
+	@rm -f *.gcov *.gcda
+	@puft -w zeros.raw 2>&1 | cat > /dev/null
+	@echo '04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '00 00 00 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 254
+	@echo '00 01 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '01 01 00 fe ff 0a' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
+	@echo '02 7e ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+	@echo '02' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 2
+	@echo '04 80 49 92 24 49 92 24 71 ff ff 93 11 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 249
+	@echo '04 c0 81 08 00 00 00 00 20 7f eb 0b 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+	@echo '0b 00 00' | xxd -r -p | puft -f 2>&1 | cat > /dev/null
+	@echo '1a 07' | xxd -r -p | puft 2> /dev/null || test $$? -eq 246
+	@echo '0c c0 81 00 00 00 00 00 90 ff 6b 04' | xxd -r -p | puft 2> /dev/null || test $$? -eq 245
+	@puft -f zeros.raw 2>&1 | cat > /dev/null
+	@echo 'fc 00 00' | xxd -r -p | puft 2> /dev/null || test $$? -eq 253
+	@echo '04 00 fe ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 252
+	@echo '04 00 24 49' | xxd -r -p | puft 2> /dev/null || test $$? -eq 251
+	@echo '04 80 49 92 24 49 92 24 0f b4 ff ff c3 84' | xxd -r -p | puft 2> /dev/null || test $$? -eq 248
+	@echo '04 00 24 e9 ff ff' | xxd -r -p | puft 2> /dev/null || test $$? -eq 250
+	@echo '04 00 24 e9 ff 6d' | xxd -r -p | puft 2> /dev/null || test $$? -eq 247
+	@gcov -n puff.c
+
+clean:
+	rm -f puff puft *.o *.gc*
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/README
new file mode 100644
index 000000000..bbc4cb595
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/README
@@ -0,0 +1,63 @@
+Puff -- A Simple Inflate
+3 Mar 2003
+Mark Adler
+madler@alumni.caltech.edu
+
+What this is --
+
+puff.c provides the routine puff() to decompress the deflate data format.  It
+does so more slowly than zlib, but the code is about one-fifth the size of the
+inflate code in zlib, and written to be very easy to read.
+
+Why I wrote this --
+
+puff.c was written to document the deflate format unambiguously, by virtue of
+being working C code.  It is meant to supplement RFC 1951, which formally
+describes the deflate format.  I have received many questions on details of the
+deflate format, and I hope that reading this code will answer those questions.
+puff.c is heavily commented with details of the deflate format, especially
+those little nooks and cranies of the format that might not be obvious from a
+specification.
+
+puff.c may also be useful in applications where code size or memory usage is a
+very limited resource, and speed is not as important.
+
+How to use it --
+
+Well, most likely you should just be reading puff.c and using zlib for actual
+applications, but if you must ...
+
+Include puff.h in your code, which provides this prototype:
+
+int puff(unsigned char *dest,           /* pointer to destination pointer */
+         unsigned long *destlen,        /* amount of output space */
+         unsigned char *source,         /* pointer to source data pointer */
+         unsigned long *sourcelen);     /* amount of input available */
+
+Then you can call puff() to decompress a deflate stream that is in memory in
+its entirety at source, to a sufficiently sized block of memory for the
+decompressed data at dest.  puff() is the only external symbol in puff.c  The
+only C library functions that puff.c needs are setjmp() and longjmp(), which
+are used to simplify error checking in the code to improve readabilty.  puff.c
+does no memory allocation, and uses less than 2K bytes off of the stack.
+
+If destlen is not enough space for the uncompressed data, then inflate will
+return an error without writing more than destlen bytes.  Note that this means
+that in order to decompress the deflate data successfully, you need to know
+the size of the uncompressed data ahead of time.
+
+If needed, puff() can determine the size of the uncompressed data with no
+output space.  This is done by passing dest equal to (unsigned char *)0.  Then
+the initial value of *destlen is ignored and *destlen is set to the length of
+the uncompressed data.  So if the size of the uncompressed data is not known,
+then two passes of puff() can be used--first to determine the size, and second
+to do the actual inflation after allocating the appropriate memory.  Not
+pretty, but it works.  (This is one of the reasons you should be using zlib.)
+
+The deflate format is self-terminating.  If the deflate stream does not end
+in *sourcelen bytes, puff() will return an error without reading at or past
+endsource.
+
+On return, *sourcelen is updated to the amount of input data consumed, and
+*destlen is updated to the size of the uncompressed data.  See the comments
+in puff.c for the possible return codes for puff().
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/puff.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/puff.c
new file mode 100644
index 000000000..c6c90d714
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/puff.c
@@ -0,0 +1,840 @@
+/*
+ * puff.c
+ * Copyright (C) 2002-2013 Mark Adler
+ * For conditions of distribution and use, see copyright notice in puff.h
+ * version 2.3, 21 Jan 2013
+ *
+ * puff.c is a simple inflate written to be an unambiguous way to specify the
+ * deflate format.  It is not written for speed but rather simplicity.  As a
+ * side benefit, this code might actually be useful when small code is more
+ * important than speed, such as bootstrap applications.  For typical deflate
+ * data, zlib's inflate() is about four times as fast as puff().  zlib's
+ * inflate compiles to around 20K on my machine, whereas puff.c compiles to
+ * around 4K on my machine (a PowerPC using GNU cc).  If the faster decode()
+ * function here is used, then puff() is only twice as slow as zlib's
+ * inflate().
+ *
+ * All dynamically allocated memory comes from the stack.  The stack required
+ * is less than 2K bytes.  This code is compatible with 16-bit int's and
+ * assumes that long's are at least 32 bits.  puff.c uses the short data type,
+ * assumed to be 16 bits, for arrays in order to conserve memory.  The code
+ * works whether integers are stored big endian or little endian.
+ *
+ * In the comments below are "Format notes" that describe the inflate process
+ * and document some of the less obvious aspects of the format.  This source
+ * code is meant to supplement RFC 1951, which formally describes the deflate
+ * format:
+ *
+ *    http://www.zlib.org/rfc-deflate.html
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  10 Feb 2002     - First version
+ * 1.1  17 Feb 2002     - Clarifications of some comments and notes
+ *                      - Update puff() dest and source pointers on negative
+ *                        errors to facilitate debugging deflators
+ *                      - Remove longest from struct huffman -- not needed
+ *                      - Simplify offs[] index in construct()
+ *                      - Add input size and checking, using longjmp() to
+ *                        maintain easy readability
+ *                      - Use short data type for large arrays
+ *                      - Use pointers instead of long to specify source and
+ *                        destination sizes to avoid arbitrary 4 GB limits
+ * 1.2  17 Mar 2002     - Add faster version of decode(), doubles speed (!),
+ *                        but leave simple version for readabilty
+ *                      - Make sure invalid distances detected if pointers
+ *                        are 16 bits
+ *                      - Fix fixed codes table error
+ *                      - Provide a scanning mode for determining size of
+ *                        uncompressed data
+ * 1.3  20 Mar 2002     - Go back to lengths for puff() parameters [Gailly]
+ *                      - Add a puff.h file for the interface
+ *                      - Add braces in puff() for else do [Gailly]
+ *                      - Use indexes instead of pointers for readability
+ * 1.4  31 Mar 2002     - Simplify construct() code set check
+ *                      - Fix some comments
+ *                      - Add FIXLCODES #define
+ * 1.5   6 Apr 2002     - Minor comment fixes
+ * 1.6   7 Aug 2002     - Minor format changes
+ * 1.7   3 Mar 2003     - Added test code for distribution
+ *                      - Added zlib-like license
+ * 1.8   9 Jan 2004     - Added some comments on no distance codes case
+ * 1.9  21 Feb 2008     - Fix bug on 16-bit integer architectures [Pohland]
+ *                      - Catch missing end-of-block symbol error
+ * 2.0  25 Jul 2008     - Add #define to permit distance too far back
+ *                      - Add option in TEST code for puff to write the data
+ *                      - Add option in TEST code to skip input bytes
+ *                      - Allow TEST code to read from piped stdin
+ * 2.1   4 Apr 2010     - Avoid variable initialization for happier compilers
+ *                      - Avoid unsigned comparisons for even happier compilers
+ * 2.2  25 Apr 2010     - Fix bug in variable initializations [Oberhumer]
+ *                      - Add const where appropriate [Oberhumer]
+ *                      - Split if's and ?'s for coverage testing
+ *                      - Break out test code to separate file
+ *                      - Move NIL to puff.h
+ *                      - Allow incomplete code only if single code length is 1
+ *                      - Add full code coverage test to Makefile
+ * 2.3  21 Jan 2013     - Check for invalid code length codes in dynamic blocks
+ */
+
+#include <setjmp.h>             /* for setjmp(), longjmp(), and jmp_buf */
+#include "puff.h"               /* prototype for puff() */
+
+#define local static            /* for local function definitions */
+
+/*
+ * Maximums for allocations and loops.  It is not useful to change these --
+ * they are fixed by the deflate format.
+ */
+#define MAXBITS 15              /* maximum bits in a code */
+#define MAXLCODES 286           /* maximum number of literal/length codes */
+#define MAXDCODES 30            /* maximum number of distance codes */
+#define MAXCODES (MAXLCODES+MAXDCODES)  /* maximum codes lengths to read */
+#define FIXLCODES 288           /* number of fixed literal/length codes */
+
+/* input and output state */
+struct state {
+    /* output state */
+    unsigned char *out;         /* output buffer */
+    unsigned long outlen;       /* available space at out */
+    unsigned long outcnt;       /* bytes written to out so far */
+
+    /* input state */
+    const unsigned char *in;    /* input buffer */
+    unsigned long inlen;        /* available input at in */
+    unsigned long incnt;        /* bytes read so far */
+    int bitbuf;                 /* bit buffer */
+    int bitcnt;                 /* number of bits in bit buffer */
+
+    /* input limit error return state for bits() and decode() */
+    jmp_buf env;
+};
+
+/*
+ * Return need bits from the input stream.  This always leaves less than
+ * eight bits in the buffer.  bits() works properly for need == 0.
+ *
+ * Format notes:
+ *
+ * - Bits are stored in bytes from the least significant bit to the most
+ *   significant bit.  Therefore bits are dropped from the bottom of the bit
+ *   buffer, using shift right, and new bytes are appended to the top of the
+ *   bit buffer, using shift left.
+ */
+local int bits(struct state *s, int need)
+{
+    long val;           /* bit accumulator (can use up to 20 bits) */
+
+    /* load at least need bits into val */
+    val = s->bitbuf;
+    while (s->bitcnt < need) {
+        if (s->incnt == s->inlen)
+            longjmp(s->env, 1);         /* out of input */
+        val |= (long)(s->in[s->incnt++]) << s->bitcnt;  /* load eight bits */
+        s->bitcnt += 8;
+    }
+
+    /* drop need bits and update buffer, always zero to seven bits left */
+    s->bitbuf = (int)(val >> need);
+    s->bitcnt -= need;
+
+    /* return need bits, zeroing the bits above that */
+    return (int)(val & ((1L << need) - 1));
+}
+
+/*
+ * Process a stored block.
+ *
+ * Format notes:
+ *
+ * - After the two-bit stored block type (00), the stored block length and
+ *   stored bytes are byte-aligned for fast copying.  Therefore any leftover
+ *   bits in the byte that has the last bit of the type, as many as seven, are
+ *   discarded.  The value of the discarded bits are not defined and should not
+ *   be checked against any expectation.
+ *
+ * - The second inverted copy of the stored block length does not have to be
+ *   checked, but it's probably a good idea to do so anyway.
+ *
+ * - A stored block can have zero length.  This is sometimes used to byte-align
+ *   subsets of the compressed data for random access or partial recovery.
+ */
+local int stored(struct state *s)
+{
+    unsigned len;       /* length of stored block */
+
+    /* discard leftover bits from current byte (assumes s->bitcnt < 8) */
+    s->bitbuf = 0;
+    s->bitcnt = 0;
+
+    /* get length and check against its one's complement */
+    if (s->incnt + 4 > s->inlen)
+        return 2;                               /* not enough input */
+    len = s->in[s->incnt++];
+    len |= s->in[s->incnt++] << 8;
+    if (s->in[s->incnt++] != (~len & 0xff) ||
+        s->in[s->incnt++] != ((~len >> 8) & 0xff))
+        return -2;                              /* didn't match complement! */
+
+    /* copy len bytes from in to out */
+    if (s->incnt + len > s->inlen)
+        return 2;                               /* not enough input */
+    if (s->out != NIL) {
+        if (s->outcnt + len > s->outlen)
+            return 1;                           /* not enough output space */
+        while (len--)
+            s->out[s->outcnt++] = s->in[s->incnt++];
+    }
+    else {                                      /* just scanning */
+        s->outcnt += len;
+        s->incnt += len;
+    }
+
+    /* done with a valid stored block */
+    return 0;
+}
+
+/*
+ * Huffman code decoding tables.  count[1..MAXBITS] is the number of symbols of
+ * each length, which for a canonical code are stepped through in order.
+ * symbol[] are the symbol values in canonical order, where the number of
+ * entries is the sum of the counts in count[].  The decoding process can be
+ * seen in the function decode() below.
+ */
+struct huffman {
+    short *count;       /* number of symbols of each length */
+    short *symbol;      /* canonically ordered symbols */
+};
+
+/*
+ * Decode a code from the stream s using huffman table h.  Return the symbol or
+ * a negative value if there is an error.  If all of the lengths are zero, i.e.
+ * an empty code, or if the code is incomplete and an invalid code is received,
+ * then -10 is returned after reading MAXBITS bits.
+ *
+ * Format notes:
+ *
+ * - The codes as stored in the compressed data are bit-reversed relative to
+ *   a simple integer ordering of codes of the same lengths.  Hence below the
+ *   bits are pulled from the compressed data one at a time and used to
+ *   build the code value reversed from what is in the stream in order to
+ *   permit simple integer comparisons for decoding.  A table-based decoding
+ *   scheme (as used in zlib) does not need to do this reversal.
+ *
+ * - The first code for the shortest length is all zeros.  Subsequent codes of
+ *   the same length are simply integer increments of the previous code.  When
+ *   moving up a length, a zero bit is appended to the code.  For a complete
+ *   code, the last code of the longest length will be all ones.
+ *
+ * - Incomplete codes are handled by this decoder, since they are permitted
+ *   in the deflate format.  See the format notes for fixed() and dynamic().
+ */
+#ifdef SLOW
+local int decode(struct state *s, const struct huffman *h)
+{
+    int len;            /* current number of bits in code */
+    int code;           /* len bits being decoded */
+    int first;          /* first code of length len */
+    int count;          /* number of codes of length len */
+    int index;          /* index of first code of length len in symbol table */
+
+    code = first = index = 0;
+    for (len = 1; len <= MAXBITS; len++) {
+        code |= bits(s, 1);             /* get next bit */
+        count = h->count[len];
+        if (code - count < first)       /* if length len, return symbol */
+            return h->symbol[index + (code - first)];
+        index += count;                 /* else update for next length */
+        first += count;
+        first <<= 1;
+        code <<= 1;
+    }
+    return -10;                         /* ran out of codes */
+}
+
+/*
+ * A faster version of decode() for real applications of this code.   It's not
+ * as readable, but it makes puff() twice as fast.  And it only makes the code
+ * a few percent larger.
+ */
+#else /* !SLOW */
+local int decode(struct state *s, const struct huffman *h)
+{
+    int len;            /* current number of bits in code */
+    int code;           /* len bits being decoded */
+    int first;          /* first code of length len */
+    int count;          /* number of codes of length len */
+    int index;          /* index of first code of length len in symbol table */
+    int bitbuf;         /* bits from stream */
+    int left;           /* bits left in next or left to process */
+    short *next;        /* next number of codes */
+
+    bitbuf = s->bitbuf;
+    left = s->bitcnt;
+    code = first = index = 0;
+    len = 1;
+    next = h->count + 1;
+    while (1) {
+        while (left--) {
+            code |= bitbuf & 1;
+            bitbuf >>= 1;
+            count = *next++;
+            if (code - count < first) { /* if length len, return symbol */
+                s->bitbuf = bitbuf;
+                s->bitcnt = (s->bitcnt - len) & 7;
+                return h->symbol[index + (code - first)];
+            }
+            index += count;             /* else update for next length */
+            first += count;
+            first <<= 1;
+            code <<= 1;
+            len++;
+        }
+        left = (MAXBITS+1) - len;
+        if (left == 0)
+            break;
+        if (s->incnt == s->inlen)
+            longjmp(s->env, 1);         /* out of input */
+        bitbuf = s->in[s->incnt++];
+        if (left > 8)
+            left = 8;
+    }
+    return -10;                         /* ran out of codes */
+}
+#endif /* SLOW */
+
+/*
+ * Given the list of code lengths length[0..n-1] representing a canonical
+ * Huffman code for n symbols, construct the tables required to decode those
+ * codes.  Those tables are the number of codes of each length, and the symbols
+ * sorted by length, retaining their original order within each length.  The
+ * return value is zero for a complete code set, negative for an over-
+ * subscribed code set, and positive for an incomplete code set.  The tables
+ * can be used if the return value is zero or positive, but they cannot be used
+ * if the return value is negative.  If the return value is zero, it is not
+ * possible for decode() using that table to return an error--any stream of
+ * enough bits will resolve to a symbol.  If the return value is positive, then
+ * it is possible for decode() using that table to return an error for received
+ * codes past the end of the incomplete lengths.
+ *
+ * Not used by decode(), but used for error checking, h->count[0] is the number
+ * of the n symbols not in the code.  So n - h->count[0] is the number of
+ * codes.  This is useful for checking for incomplete codes that have more than
+ * one symbol, which is an error in a dynamic block.
+ *
+ * Assumption: for all i in 0..n-1, 0 <= length[i] <= MAXBITS
+ * This is assured by the construction of the length arrays in dynamic() and
+ * fixed() and is not verified by construct().
+ *
+ * Format notes:
+ *
+ * - Permitted and expected examples of incomplete codes are one of the fixed
+ *   codes and any code with a single symbol which in deflate is coded as one
+ *   bit instead of zero bits.  See the format notes for fixed() and dynamic().
+ *
+ * - Within a given code length, the symbols are kept in ascending order for
+ *   the code bits definition.
+ */
+local int construct(struct huffman *h, const short *length, int n)
+{
+    int symbol;         /* current symbol when stepping through length[] */
+    int len;            /* current length when stepping through h->count[] */
+    int left;           /* number of possible codes left of current length */
+    short offs[MAXBITS+1];      /* offsets in symbol table for each length */
+
+    /* count number of codes of each length */
+    for (len = 0; len <= MAXBITS; len++)
+        h->count[len] = 0;
+    for (symbol = 0; symbol < n; symbol++)
+        (h->count[length[symbol]])++;   /* assumes lengths are within bounds */
+    if (h->count[0] == n)               /* no codes! */
+        return 0;                       /* complete, but decode() will fail */
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;                           /* one possible code of zero length */
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;                     /* one more bit, double codes left */
+        left -= h->count[len];          /* deduct count from possible codes */
+        if (left < 0)
+            return left;                /* over-subscribed--return negative */
+    }                                   /* left > 0 means incomplete */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + h->count[len];
+
+    /*
+     * put symbols in table sorted by length, by symbol order within each
+     * length
+     */
+    for (symbol = 0; symbol < n; symbol++)
+        if (length[symbol] != 0)
+            h->symbol[offs[length[symbol]]++] = symbol;
+
+    /* return zero for complete set, positive for incomplete set */
+    return left;
+}
+
+/*
+ * Decode literal/length and distance codes until an end-of-block code.
+ *
+ * Format notes:
+ *
+ * - Compressed data that is after the block type if fixed or after the code
+ *   description if dynamic is a combination of literals and length/distance
+ *   pairs terminated by and end-of-block code.  Literals are simply Huffman
+ *   coded bytes.  A length/distance pair is a coded length followed by a
+ *   coded distance to represent a string that occurs earlier in the
+ *   uncompressed data that occurs again at the current location.
+ *
+ * - Literals, lengths, and the end-of-block code are combined into a single
+ *   code of up to 286 symbols.  They are 256 literals (0..255), 29 length
+ *   symbols (257..285), and the end-of-block symbol (256).
+ *
+ * - There are 256 possible lengths (3..258), and so 29 symbols are not enough
+ *   to represent all of those.  Lengths 3..10 and 258 are in fact represented
+ *   by just a length symbol.  Lengths 11..257 are represented as a symbol and
+ *   some number of extra bits that are added as an integer to the base length
+ *   of the length symbol.  The number of extra bits is determined by the base
+ *   length symbol.  These are in the static arrays below, lens[] for the base
+ *   lengths and lext[] for the corresponding number of extra bits.
+ *
+ * - The reason that 258 gets its own symbol is that the longest length is used
+ *   often in highly redundant files.  Note that 258 can also be coded as the
+ *   base value 227 plus the maximum extra value of 31.  While a good deflate
+ *   should never do this, it is not an error, and should be decoded properly.
+ *
+ * - If a length is decoded, including its extra bits if any, then it is
+ *   followed a distance code.  There are up to 30 distance symbols.  Again
+ *   there are many more possible distances (1..32768), so extra bits are added
+ *   to a base value represented by the symbol.  The distances 1..4 get their
+ *   own symbol, but the rest require extra bits.  The base distances and
+ *   corresponding number of extra bits are below in the static arrays dist[]
+ *   and dext[].
+ *
+ * - Literal bytes are simply written to the output.  A length/distance pair is
+ *   an instruction to copy previously uncompressed bytes to the output.  The
+ *   copy is from distance bytes back in the output stream, copying for length
+ *   bytes.
+ *
+ * - Distances pointing before the beginning of the output data are not
+ *   permitted.
+ *
+ * - Overlapped copies, where the length is greater than the distance, are
+ *   allowed and common.  For example, a distance of one and a length of 258
+ *   simply copies the last byte 258 times.  A distance of four and a length of
+ *   twelve copies the last four bytes three times.  A simple forward copy
+ *   ignoring whether the length is greater than the distance or not implements
+ *   this correctly.  You should not use memcpy() since its behavior is not
+ *   defined for overlapped arrays.  You should not use memmove() or bcopy()
+ *   since though their behavior -is- defined for overlapping arrays, it is
+ *   defined to do the wrong thing in this case.
+ */
+local int codes(struct state *s,
+                const struct huffman *lencode,
+                const struct huffman *distcode)
+{
+    int symbol;         /* decoded symbol */
+    int len;            /* length for copy */
+    unsigned dist;      /* distance for copy */
+    static const short lens[29] = { /* Size base for length codes 257..285 */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258};
+    static const short lext[29] = { /* Extra bits for length codes 257..285 */
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+        3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0};
+    static const short dists[30] = { /* Offset base for distance codes 0..29 */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+        8193, 12289, 16385, 24577};
+    static const short dext[30] = { /* Extra bits for distance codes 0..29 */
+        0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+        7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
+        12, 12, 13, 13};
+
+    /* decode literals and length/distance pairs */
+    do {
+        symbol = decode(s, lencode);
+        if (symbol < 0)
+            return symbol;              /* invalid symbol */
+        if (symbol < 256) {             /* literal: symbol is the byte */
+            /* write out the literal */
+            if (s->out != NIL) {
+                if (s->outcnt == s->outlen)
+                    return 1;
+                s->out[s->outcnt] = symbol;
+            }
+            s->outcnt++;
+        }
+        else if (symbol > 256) {        /* length */
+            /* get and compute length */
+            symbol -= 257;
+            if (symbol >= 29)
+                return -10;             /* invalid fixed code */
+            len = lens[symbol] + bits(s, lext[symbol]);
+
+            /* get and check distance */
+            symbol = decode(s, distcode);
+            if (symbol < 0)
+                return symbol;          /* invalid symbol */
+            dist = dists[symbol] + bits(s, dext[symbol]);
+#ifndef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+            if (dist > s->outcnt)
+                return -11;     /* distance too far back */
+#endif
+
+            /* copy length bytes from distance bytes back */
+            if (s->out != NIL) {
+                if (s->outcnt + len > s->outlen)
+                    return 1;
+                while (len--) {
+                    s->out[s->outcnt] =
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+                        dist > s->outcnt ?
+                            0 :
+#endif
+                            s->out[s->outcnt - dist];
+                    s->outcnt++;
+                }
+            }
+            else
+                s->outcnt += len;
+        }
+    } while (symbol != 256);            /* end of block symbol */
+
+    /* done with a valid fixed or dynamic block */
+    return 0;
+}
+
+/*
+ * Process a fixed codes block.
+ *
+ * Format notes:
+ *
+ * - This block type can be useful for compressing small amounts of data for
+ *   which the size of the code descriptions in a dynamic block exceeds the
+ *   benefit of custom codes for that block.  For fixed codes, no bits are
+ *   spent on code descriptions.  Instead the code lengths for literal/length
+ *   codes and distance codes are fixed.  The specific lengths for each symbol
+ *   can be seen in the "for" loops below.
+ *
+ * - The literal/length code is complete, but has two symbols that are invalid
+ *   and should result in an error if received.  This cannot be implemented
+ *   simply as an incomplete code since those two symbols are in the "middle"
+ *   of the code.  They are eight bits long and the longest literal/length\
+ *   code is nine bits.  Therefore the code must be constructed with those
+ *   symbols, and the invalid symbols must be detected after decoding.
+ *
+ * - The fixed distance codes also have two invalid symbols that should result
+ *   in an error if received.  Since all of the distance codes are the same
+ *   length, this can be implemented as an incomplete code.  Then the invalid
+ *   codes are detected while decoding.
+ */
+local int fixed(struct state *s)
+{
+    static int virgin = 1;
+    static short lencnt[MAXBITS+1], lensym[FIXLCODES];
+    static short distcnt[MAXBITS+1], distsym[MAXDCODES];
+    static struct huffman lencode, distcode;
+
+    /* build fixed huffman tables if first call (may not be thread safe) */
+    if (virgin) {
+        int symbol;
+        short lengths[FIXLCODES];
+
+        /* construct lencode and distcode */
+        lencode.count = lencnt;
+        lencode.symbol = lensym;
+        distcode.count = distcnt;
+        distcode.symbol = distsym;
+
+        /* literal/length table */
+        for (symbol = 0; symbol < 144; symbol++)
+            lengths[symbol] = 8;
+        for (; symbol < 256; symbol++)
+            lengths[symbol] = 9;
+        for (; symbol < 280; symbol++)
+            lengths[symbol] = 7;
+        for (; symbol < FIXLCODES; symbol++)
+            lengths[symbol] = 8;
+        construct(&lencode, lengths, FIXLCODES);
+
+        /* distance table */
+        for (symbol = 0; symbol < MAXDCODES; symbol++)
+            lengths[symbol] = 5;
+        construct(&distcode, lengths, MAXDCODES);
+
+        /* do this just once */
+        virgin = 0;
+    }
+
+    /* decode data until end-of-block code */
+    return codes(s, &lencode, &distcode);
+}
+
+/*
+ * Process a dynamic codes block.
+ *
+ * Format notes:
+ *
+ * - A dynamic block starts with a description of the literal/length and
+ *   distance codes for that block.  New dynamic blocks allow the compressor to
+ *   rapidly adapt to changing data with new codes optimized for that data.
+ *
+ * - The codes used by the deflate format are "canonical", which means that
+ *   the actual bits of the codes are generated in an unambiguous way simply
+ *   from the number of bits in each code.  Therefore the code descriptions
+ *   are simply a list of code lengths for each symbol.
+ *
+ * - The code lengths are stored in order for the symbols, so lengths are
+ *   provided for each of the literal/length symbols, and for each of the
+ *   distance symbols.
+ *
+ * - If a symbol is not used in the block, this is represented by a zero as
+ *   as the code length.  This does not mean a zero-length code, but rather
+ *   that no code should be created for this symbol.  There is no way in the
+ *   deflate format to represent a zero-length code.
+ *
+ * - The maximum number of bits in a code is 15, so the possible lengths for
+ *   any code are 1..15.
+ *
+ * - The fact that a length of zero is not permitted for a code has an
+ *   interesting consequence.  Normally if only one symbol is used for a given
+ *   code, then in fact that code could be represented with zero bits.  However
+ *   in deflate, that code has to be at least one bit.  So for example, if
+ *   only a single distance base symbol appears in a block, then it will be
+ *   represented by a single code of length one, in particular one 0 bit.  This
+ *   is an incomplete code, since if a 1 bit is received, it has no meaning,
+ *   and should result in an error.  So incomplete distance codes of one symbol
+ *   should be permitted, and the receipt of invalid codes should be handled.
+ *
+ * - It is also possible to have a single literal/length code, but that code
+ *   must be the end-of-block code, since every dynamic block has one.  This
+ *   is not the most efficient way to create an empty block (an empty fixed
+ *   block is fewer bits), but it is allowed by the format.  So incomplete
+ *   literal/length codes of one symbol should also be permitted.
+ *
+ * - If there are only literal codes and no lengths, then there are no distance
+ *   codes.  This is represented by one distance code with zero bits.
+ *
+ * - The list of up to 286 length/literal lengths and up to 30 distance lengths
+ *   are themselves compressed using Huffman codes and run-length encoding.  In
+ *   the list of code lengths, a 0 symbol means no code, a 1..15 symbol means
+ *   that length, and the symbols 16, 17, and 18 are run-length instructions.
+ *   Each of 16, 17, and 18 are follwed by extra bits to define the length of
+ *   the run.  16 copies the last length 3 to 6 times.  17 represents 3 to 10
+ *   zero lengths, and 18 represents 11 to 138 zero lengths.  Unused symbols
+ *   are common, hence the special coding for zero lengths.
+ *
+ * - The symbols for 0..18 are Huffman coded, and so that code must be
+ *   described first.  This is simply a sequence of up to 19 three-bit values
+ *   representing no code (0) or the code length for that symbol (1..7).
+ *
+ * - A dynamic block starts with three fixed-size counts from which is computed
+ *   the number of literal/length code lengths, the number of distance code
+ *   lengths, and the number of code length code lengths (ok, you come up with
+ *   a better name!) in the code descriptions.  For the literal/length and
+ *   distance codes, lengths after those provided are considered zero, i.e. no
+ *   code.  The code length code lengths are received in a permuted order (see
+ *   the order[] array below) to make a short code length code length list more
+ *   likely.  As it turns out, very short and very long codes are less likely
+ *   to be seen in a dynamic code description, hence what may appear initially
+ *   to be a peculiar ordering.
+ *
+ * - Given the number of literal/length code lengths (nlen) and distance code
+ *   lengths (ndist), then they are treated as one long list of nlen + ndist
+ *   code lengths.  Therefore run-length coding can and often does cross the
+ *   boundary between the two sets of lengths.
+ *
+ * - So to summarize, the code description at the start of a dynamic block is
+ *   three counts for the number of code lengths for the literal/length codes,
+ *   the distance codes, and the code length codes.  This is followed by the
+ *   code length code lengths, three bits each.  This is used to construct the
+ *   code length code which is used to read the remainder of the lengths.  Then
+ *   the literal/length code lengths and distance lengths are read as a single
+ *   set of lengths using the code length codes.  Codes are constructed from
+ *   the resulting two sets of lengths, and then finally you can start
+ *   decoding actual compressed data in the block.
+ *
+ * - For reference, a "typical" size for the code description in a dynamic
+ *   block is around 80 bytes.
+ */
+local int dynamic(struct state *s)
+{
+    int nlen, ndist, ncode;             /* number of lengths in descriptor */
+    int index;                          /* index of lengths[] */
+    int err;                            /* construct() return value */
+    short lengths[MAXCODES];            /* descriptor code lengths */
+    short lencnt[MAXBITS+1], lensym[MAXLCODES];         /* lencode memory */
+    short distcnt[MAXBITS+1], distsym[MAXDCODES];       /* distcode memory */
+    struct huffman lencode, distcode;   /* length and distance codes */
+    static const short order[19] =      /* permutation of code length codes */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+    /* construct lencode and distcode */
+    lencode.count = lencnt;
+    lencode.symbol = lensym;
+    distcode.count = distcnt;
+    distcode.symbol = distsym;
+
+    /* get number of lengths in each table, check lengths */
+    nlen = bits(s, 5) + 257;
+    ndist = bits(s, 5) + 1;
+    ncode = bits(s, 4) + 4;
+    if (nlen > MAXLCODES || ndist > MAXDCODES)
+        return -3;                      /* bad counts */
+
+    /* read code length code lengths (really), missing lengths are zero */
+    for (index = 0; index < ncode; index++)
+        lengths[order[index]] = bits(s, 3);
+    for (; index < 19; index++)
+        lengths[order[index]] = 0;
+
+    /* build huffman table for code lengths codes (use lencode temporarily) */
+    err = construct(&lencode, lengths, 19);
+    if (err != 0)               /* require complete code set here */
+        return -4;
+
+    /* read length/literal and distance code length tables */
+    index = 0;
+    while (index < nlen + ndist) {
+        int symbol;             /* decoded value */
+        int len;                /* last length to repeat */
+
+        symbol = decode(s, &lencode);
+        if (symbol < 0)
+            return symbol;          /* invalid symbol */
+        if (symbol < 16)                /* length in 0..15 */
+            lengths[index++] = symbol;
+        else {                          /* repeat instruction */
+            len = 0;                    /* assume repeating zeros */
+            if (symbol == 16) {         /* repeat last length 3..6 times */
+                if (index == 0)
+                    return -5;          /* no last length! */
+                len = lengths[index - 1];       /* last length */
+                symbol = 3 + bits(s, 2);
+            }
+            else if (symbol == 17)      /* repeat zero 3..10 times */
+                symbol = 3 + bits(s, 3);
+            else                        /* == 18, repeat zero 11..138 times */
+                symbol = 11 + bits(s, 7);
+            if (index + symbol > nlen + ndist)
+                return -6;              /* too many lengths! */
+            while (symbol--)            /* repeat last or zero symbol times */
+                lengths[index++] = len;
+        }
+    }
+
+    /* check for end-of-block code -- there better be one! */
+    if (lengths[256] == 0)
+        return -9;
+
+    /* build huffman table for literal/length codes */
+    err = construct(&lencode, lengths, nlen);
+    if (err && (err < 0 || nlen != lencode.count[0] + lencode.count[1]))
+        return -7;      /* incomplete code ok only for single length 1 code */
+
+    /* build huffman table for distance codes */
+    err = construct(&distcode, lengths + nlen, ndist);
+    if (err && (err < 0 || ndist != distcode.count[0] + distcode.count[1]))
+        return -8;      /* incomplete code ok only for single length 1 code */
+
+    /* decode data until end-of-block code */
+    return codes(s, &lencode, &distcode);
+}
+
+/*
+ * Inflate source to dest.  On return, destlen and sourcelen are updated to the
+ * size of the uncompressed data and the size of the deflate data respectively.
+ * On success, the return value of puff() is zero.  If there is an error in the
+ * source data, i.e. it is not in the deflate format, then a negative value is
+ * returned.  If there is not enough input available or there is not enough
+ * output space, then a positive error is returned.  In that case, destlen and
+ * sourcelen are not updated to facilitate retrying from the beginning with the
+ * provision of more input data or more output space.  In the case of invalid
+ * inflate data (a negative error), the dest and source pointers are updated to
+ * facilitate the debugging of deflators.
+ *
+ * puff() also has a mode to determine the size of the uncompressed output with
+ * no output written.  For this dest must be (unsigned char *)0.  In this case,
+ * the input value of *destlen is ignored, and on return *destlen is set to the
+ * size of the uncompressed output.
+ *
+ * The return codes are:
+ *
+ *   2:  available inflate data did not terminate
+ *   1:  output space exhausted before completing inflate
+ *   0:  successful inflate
+ *  -1:  invalid block type (type == 3)
+ *  -2:  stored block length did not match one's complement
+ *  -3:  dynamic block code description: too many length or distance codes
+ *  -4:  dynamic block code description: code lengths codes incomplete
+ *  -5:  dynamic block code description: repeat lengths with no first length
+ *  -6:  dynamic block code description: repeat more than specified lengths
+ *  -7:  dynamic block code description: invalid literal/length code lengths
+ *  -8:  dynamic block code description: invalid distance code lengths
+ *  -9:  dynamic block code description: missing end-of-block code
+ * -10:  invalid literal/length or distance code in fixed or dynamic block
+ * -11:  distance is too far back in fixed or dynamic block
+ *
+ * Format notes:
+ *
+ * - Three bits are read for each block to determine the kind of block and
+ *   whether or not it is the last block.  Then the block is decoded and the
+ *   process repeated if it was not the last block.
+ *
+ * - The leftover bits in the last byte of the deflate data after the last
+ *   block (if it was a fixed or dynamic block) are undefined and have no
+ *   expected values to check.
+ */
+int puff(unsigned char *dest,           /* pointer to destination pointer */
+         unsigned long *destlen,        /* amount of output space */
+         const unsigned char *source,   /* pointer to source data pointer */
+         unsigned long *sourcelen)      /* amount of input available */
+{
+    struct state s;             /* input/output state */
+    int last, type;             /* block information */
+    int err;                    /* return value */
+
+    /* initialize output state */
+    s.out = dest;
+    s.outlen = *destlen;                /* ignored if dest is NIL */
+    s.outcnt = 0;
+
+    /* initialize input state */
+    s.in = source;
+    s.inlen = *sourcelen;
+    s.incnt = 0;
+    s.bitbuf = 0;
+    s.bitcnt = 0;
+
+    /* return if bits() or decode() tries to read past available input */
+    if (setjmp(s.env) != 0)             /* if came back here via longjmp() */
+        err = 2;                        /* then skip do-loop, return error */
+    else {
+        /* process blocks until last block or error */
+        do {
+            last = bits(&s, 1);         /* one if last block */
+            type = bits(&s, 2);         /* block type 0..3 */
+            err = type == 0 ?
+                    stored(&s) :
+                    (type == 1 ?
+                        fixed(&s) :
+                        (type == 2 ?
+                            dynamic(&s) :
+                            -1));       /* type == 3, invalid */
+            if (err != 0)
+                break;                  /* return with error */
+        } while (!last);
+    }
+
+    /* update the lengths and return */
+    if (err <= 0) {
+        *destlen = s.outcnt;
+        *sourcelen = s.incnt;
+    }
+    return err;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/puff.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/puff.h
new file mode 100644
index 000000000..e23a24543
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/puff.h
@@ -0,0 +1,35 @@
+/* puff.h
+  Copyright (C) 2002-2013 Mark Adler, all rights reserved
+  version 2.3, 21 Jan 2013
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+
+/*
+ * See puff.c for purpose and usage.
+ */
+#ifndef NIL
+#  define NIL ((unsigned char *)0)      /* for no output option */
+#endif
+
+int puff(unsigned char *dest,           /* pointer to destination pointer */
+         unsigned long *destlen,        /* amount of output space */
+         const unsigned char *source,   /* pointer to source data pointer */
+         unsigned long *sourcelen);     /* amount of input available */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/pufftest.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/pufftest.c
new file mode 100644
index 000000000..776481488
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/pufftest.c
@@ -0,0 +1,165 @@
+/*
+ * pufftest.c
+ * Copyright (C) 2002-2013 Mark Adler
+ * For conditions of distribution and use, see copyright notice in puff.h
+ * version 2.3, 21 Jan 2013
+ */
+
+/* Example of how to use puff().
+
+   Usage: puff [-w] [-f] [-nnn] file
+          ... | puff [-w] [-f] [-nnn]
+
+   where file is the input file with deflate data, nnn is the number of bytes
+   of input to skip before inflating (e.g. to skip a zlib or gzip header), and
+   -w is used to write the decompressed data to stdout.  -f is for coverage
+   testing, and causes pufftest to fail with not enough output space (-f does
+   a write like -w, so -w is not required). */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "puff.h"
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#define local static
+
+/* Return size times approximately the cube root of 2, keeping the result as 1,
+   3, or 5 times a power of 2 -- the result is always > size, until the result
+   is the maximum value of an unsigned long, where it remains.  This is useful
+   to keep reallocations less than ~33% over the actual data. */
+local size_t bythirds(size_t size)
+{
+    int n;
+    size_t m;
+
+    m = size;
+    for (n = 0; m; n++)
+        m >>= 1;
+    if (n < 3)
+        return size + 1;
+    n -= 3;
+    m = size >> n;
+    m += m == 6 ? 2 : 1;
+    m <<= n;
+    return m > size ? m : (size_t)(-1);
+}
+
+/* Read the input file *name, or stdin if name is NULL, into allocated memory.
+   Reallocate to larger buffers until the entire file is read in.  Return a
+   pointer to the allocated data, or NULL if there was a memory allocation
+   failure.  *len is the number of bytes of data read from the input file (even
+   if load() returns NULL).  If the input file was empty or could not be opened
+   or read, *len is zero. */
+local void *load(const char *name, size_t *len)
+{
+    size_t size;
+    void *buf, *swap;
+    FILE *in;
+
+    *len = 0;
+    buf = malloc(size = 4096);
+    if (buf == NULL)
+        return NULL;
+    in = name == NULL ? stdin : fopen(name, "rb");
+    if (in != NULL) {
+        for (;;) {
+            *len += fread((char *)buf + *len, 1, size - *len, in);
+            if (*len < size) break;
+            size = bythirds(size);
+            if (size == *len || (swap = realloc(buf, size)) == NULL) {
+                free(buf);
+                buf = NULL;
+                break;
+            }
+            buf = swap;
+        }
+        fclose(in);
+    }
+    return buf;
+}
+
+int main(int argc, char **argv)
+{
+    int ret, put = 0, fail = 0;
+    unsigned skip = 0;
+    char *arg, *name = NULL;
+    unsigned char *source = NULL, *dest;
+    size_t len = 0;
+    unsigned long sourcelen, destlen;
+
+    /* process arguments */
+    while (arg = *++argv, --argc)
+        if (arg[0] == '-') {
+            if (arg[1] == 'w' && arg[2] == 0)
+                put = 1;
+            else if (arg[1] == 'f' && arg[2] == 0)
+                fail = 1, put = 1;
+            else if (arg[1] >= '0' && arg[1] <= '9')
+                skip = (unsigned)atoi(arg + 1);
+            else {
+                fprintf(stderr, "invalid option %s\n", arg);
+                return 3;
+            }
+        }
+        else if (name != NULL) {
+            fprintf(stderr, "only one file name allowed\n");
+            return 3;
+        }
+        else
+            name = arg;
+    source = load(name, &len);
+    if (source == NULL) {
+        fprintf(stderr, "memory allocation failure\n");
+        return 4;
+    }
+    if (len == 0) {
+        fprintf(stderr, "could not read %s, or it was empty\n",
+                name == NULL ? "<stdin>" : name);
+        free(source);
+        return 3;
+    }
+    if (skip >= len) {
+        fprintf(stderr, "skip request of %d leaves no input\n", skip);
+        free(source);
+        return 3;
+    }
+
+    /* test inflate data with offset skip */
+    len -= skip;
+    sourcelen = (unsigned long)len;
+    ret = puff(NIL, &destlen, source + skip, &sourcelen);
+    if (ret)
+        fprintf(stderr, "puff() failed with return code %d\n", ret);
+    else {
+        fprintf(stderr, "puff() succeeded uncompressing %lu bytes\n", destlen);
+        if (sourcelen < len) fprintf(stderr, "%lu compressed bytes unused\n",
+                                     len - sourcelen);
+    }
+
+    /* if requested, inflate again and write decompressd data to stdout */
+    if (put && ret == 0) {
+        if (fail)
+            destlen >>= 1;
+        dest = malloc(destlen);
+        if (dest == NULL) {
+            fprintf(stderr, "memory allocation failure\n");
+            free(source);
+            return 4;
+        }
+        puff(dest, &destlen, source + skip, &sourcelen);
+        SET_BINARY_MODE(stdout);
+        fwrite(dest, 1, destlen, stdout);
+        free(dest);
+    }
+
+    /* clean up */
+    free(source);
+    return ret;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/zeros.raw b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/zeros.raw
new file mode 100644
index 000000000..0a90e76b3
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/puff/zeros.raw
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/testzlib/testzlib.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/testzlib/testzlib.c
new file mode 100644
index 000000000..8626c92ad
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/testzlib/testzlib.c
@@ -0,0 +1,275 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <windows.h>
+
+#include "zlib.h"
+
+
+void MyDoMinus64(LARGE_INTEGER *R,LARGE_INTEGER A,LARGE_INTEGER B)
+{
+    R->HighPart = A.HighPart - B.HighPart;
+    if (A.LowPart >= B.LowPart)
+        R->LowPart = A.LowPart - B.LowPart;
+    else
+    {
+        R->LowPart = A.LowPart - B.LowPart;
+        R->HighPart --;
+    }
+}
+
+#ifdef _M_X64
+// see http://msdn2.microsoft.com/library/twchhe95(en-us,vs.80).aspx for __rdtsc
+unsigned __int64 __rdtsc(void);
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+ //   printf("rdtsc = %I64x\n",__rdtsc());
+   pbeginTime64->QuadPart=__rdtsc();
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER LIres;
+    unsigned _int64 res=__rdtsc()-((unsigned _int64)(beginTime64.QuadPart));
+    LIres.QuadPart=res;
+   // printf("rdtsc = %I64x\n",__rdtsc());
+    return LIres;
+}
+#else
+#ifdef _M_IX86
+void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)
+{
+    DWORD dwEdx,dwEax;
+    _asm
+    {
+        rdtsc
+        mov dwEax,eax
+        mov dwEdx,edx
+    }
+    pbeginTime64->LowPart=dwEax;
+    pbeginTime64->HighPart=dwEdx;
+}
+
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+    myGetRDTSC32(pbeginTime64);
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER LIres,endTime64;
+    myGetRDTSC32(&endTime64);
+
+    LIres.LowPart=LIres.HighPart=0;
+    MyDoMinus64(&LIres,endTime64,beginTime64);
+    return LIres;
+}
+#else
+void myGetRDTSC32(LARGE_INTEGER * pbeginTime64)
+{
+}
+
+void BeginCountRdtsc(LARGE_INTEGER * pbeginTime64)
+{
+}
+
+LARGE_INTEGER GetResRdtsc(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER lr;
+    lr.QuadPart=0;
+    return lr;
+}
+#endif
+#endif
+
+void BeginCountPerfCounter(LARGE_INTEGER * pbeginTime64,BOOL fComputeTimeQueryPerf)
+{
+    if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(pbeginTime64)))
+    {
+        pbeginTime64->LowPart = GetTickCount();
+        pbeginTime64->HighPart = 0;
+    }
+}
+
+DWORD GetMsecSincePerfCounter(LARGE_INTEGER beginTime64,BOOL fComputeTimeQueryPerf)
+{
+    LARGE_INTEGER endTime64,ticksPerSecond,ticks;
+    DWORDLONG ticksShifted,tickSecShifted;
+    DWORD dwLog=16+0;
+    DWORD dwRet;
+    if ((!fComputeTimeQueryPerf) || (!QueryPerformanceCounter(&endTime64)))
+        dwRet = (GetTickCount() - beginTime64.LowPart)*1;
+    else
+    {
+        MyDoMinus64(&ticks,endTime64,beginTime64);
+        QueryPerformanceFrequency(&ticksPerSecond);
+
+
+        {
+            ticksShifted = Int64ShrlMod32(*(DWORDLONG*)&ticks,dwLog);
+            tickSecShifted = Int64ShrlMod32(*(DWORDLONG*)&ticksPerSecond,dwLog);
+
+        }
+
+        dwRet = (DWORD)((((DWORD)ticksShifted)*1000)/(DWORD)(tickSecShifted));
+        dwRet *=1;
+    }
+    return dwRet;
+}
+
+int ReadFileMemory(const char* filename,long* plFileSize,unsigned char** pFilePtr)
+{
+    FILE* stream;
+    unsigned char* ptr;
+    int retVal=1;
+    stream=fopen(filename, "rb");
+    if (stream==NULL)
+        return 0;
+
+    fseek(stream,0,SEEK_END);
+
+    *plFileSize=ftell(stream);
+    fseek(stream,0,SEEK_SET);
+    ptr=malloc((*plFileSize)+1);
+    if (ptr==NULL)
+        retVal=0;
+    else
+    {
+        if (fread(ptr, 1, *plFileSize,stream) != (*plFileSize))
+            retVal=0;
+    }
+    fclose(stream);
+    *pFilePtr=ptr;
+    return retVal;
+}
+
+int main(int argc, char *argv[])
+{
+    int BlockSizeCompress=0x8000;
+    int BlockSizeUncompress=0x8000;
+    int cprLevel=Z_DEFAULT_COMPRESSION ;
+    long lFileSize;
+    unsigned char* FilePtr;
+    long lBufferSizeCpr;
+    long lBufferSizeUncpr;
+    long lCompressedSize=0;
+    unsigned char* CprPtr;
+    unsigned char* UncprPtr;
+    long lSizeCpr,lSizeUncpr;
+    DWORD dwGetTick,dwMsecQP;
+    LARGE_INTEGER li_qp,li_rdtsc,dwResRdtsc;
+
+    if (argc<=1)
+    {
+        printf("run TestZlib <File> [BlockSizeCompress] [BlockSizeUncompress] [compres. level]\n");
+        return 0;
+    }
+
+    if (ReadFileMemory(argv[1],&lFileSize,&FilePtr)==0)
+    {
+        printf("error reading %s\n",argv[1]);
+        return 1;
+    }
+    else printf("file %s read, %u bytes\n",argv[1],lFileSize);
+
+    if (argc>=3)
+        BlockSizeCompress=atol(argv[2]);
+
+    if (argc>=4)
+        BlockSizeUncompress=atol(argv[3]);
+
+    if (argc>=5)
+        cprLevel=(int)atol(argv[4]);
+
+    lBufferSizeCpr = lFileSize + (lFileSize/0x10) + 0x200;
+    lBufferSizeUncpr = lBufferSizeCpr;
+
+    CprPtr=(unsigned char*)malloc(lBufferSizeCpr + BlockSizeCompress);
+
+    BeginCountPerfCounter(&li_qp,TRUE);
+    dwGetTick=GetTickCount();
+    BeginCountRdtsc(&li_rdtsc);
+    {
+        z_stream zcpr;
+        int ret=Z_OK;
+        long lOrigToDo = lFileSize;
+        long lOrigDone = 0;
+        int step=0;
+        memset(&zcpr,0,sizeof(z_stream));
+        deflateInit(&zcpr,cprLevel);
+
+        zcpr.next_in = FilePtr;
+        zcpr.next_out = CprPtr;
+
+
+        do
+        {
+            long all_read_before = zcpr.total_in;
+            zcpr.avail_in = min(lOrigToDo,BlockSizeCompress);
+            zcpr.avail_out = BlockSizeCompress;
+            ret=deflate(&zcpr,(zcpr.avail_in==lOrigToDo) ? Z_FINISH : Z_SYNC_FLUSH);
+            lOrigDone += (zcpr.total_in-all_read_before);
+            lOrigToDo -= (zcpr.total_in-all_read_before);
+            step++;
+        } while (ret==Z_OK);
+
+        lSizeCpr=zcpr.total_out;
+        deflateEnd(&zcpr);
+        dwGetTick=GetTickCount()-dwGetTick;
+        dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);
+        dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);
+        printf("total compress size = %u, in %u step\n",lSizeCpr,step);
+        printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);
+        printf("defcpr time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);
+        printf("defcpr result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);
+    }
+
+    CprPtr=(unsigned char*)realloc(CprPtr,lSizeCpr);
+    UncprPtr=(unsigned char*)malloc(lBufferSizeUncpr + BlockSizeUncompress);
+
+    BeginCountPerfCounter(&li_qp,TRUE);
+    dwGetTick=GetTickCount();
+    BeginCountRdtsc(&li_rdtsc);
+    {
+        z_stream zcpr;
+        int ret=Z_OK;
+        long lOrigToDo = lSizeCpr;
+        long lOrigDone = 0;
+        int step=0;
+        memset(&zcpr,0,sizeof(z_stream));
+        inflateInit(&zcpr);
+
+        zcpr.next_in = CprPtr;
+        zcpr.next_out = UncprPtr;
+
+
+        do
+        {
+            long all_read_before = zcpr.total_in;
+            zcpr.avail_in = min(lOrigToDo,BlockSizeUncompress);
+            zcpr.avail_out = BlockSizeUncompress;
+            ret=inflate(&zcpr,Z_SYNC_FLUSH);
+            lOrigDone += (zcpr.total_in-all_read_before);
+            lOrigToDo -= (zcpr.total_in-all_read_before);
+            step++;
+        } while (ret==Z_OK);
+
+        lSizeUncpr=zcpr.total_out;
+        inflateEnd(&zcpr);
+        dwGetTick=GetTickCount()-dwGetTick;
+        dwMsecQP=GetMsecSincePerfCounter(li_qp,TRUE);
+        dwResRdtsc=GetResRdtsc(li_rdtsc,TRUE);
+        printf("total uncompress size = %u, in %u step\n",lSizeUncpr,step);
+        printf("time = %u msec = %f sec\n",dwGetTick,dwGetTick/(double)1000.);
+        printf("uncpr  time QP = %u msec = %f sec\n",dwMsecQP,dwMsecQP/(double)1000.);
+        printf("uncpr  result rdtsc = %I64x\n\n",dwResRdtsc.QuadPart);
+    }
+
+    if (lSizeUncpr==lFileSize)
+    {
+        if (memcmp(FilePtr,UncprPtr,lFileSize)==0)
+            printf("compare ok\n");
+
+    }
+
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/testzlib/testzlib.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/testzlib/testzlib.txt
new file mode 100644
index 000000000..e508bb22f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/testzlib/testzlib.txt
@@ -0,0 +1,10 @@
+To build testzLib with Visual Studio 2005:
+
+copy to a directory file from :
+- root of zLib tree
+- contrib/testzlib
+- contrib/masmx86
+- contrib/masmx64
+- contrib/vstudio/vc7
+
+and open testzlib8.sln
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/Makefile b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/Makefile
new file mode 100644
index 000000000..b54266fba
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/Makefile
@@ -0,0 +1,14 @@
+CC=cc
+CFLAGS=-g
+
+untgz: untgz.o ../../libz.a
+	$(CC) $(CFLAGS) -o untgz untgz.o -L../.. -lz
+
+untgz.o: untgz.c ../../zlib.h
+	$(CC) $(CFLAGS) -c -I../.. untgz.c
+
+../../libz.a:
+	cd ../..; ./configure; make
+
+clean:
+	rm -f untgz untgz.o *~
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/Makefile.msc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/Makefile.msc
new file mode 100644
index 000000000..77b860221
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/Makefile.msc
@@ -0,0 +1,17 @@
+CC=cl
+CFLAGS=-MD
+
+untgz.exe: untgz.obj ..\..\zlib.lib
+	$(CC) $(CFLAGS) untgz.obj ..\..\zlib.lib
+
+untgz.obj: untgz.c ..\..\zlib.h
+	$(CC) $(CFLAGS) -c -I..\.. untgz.c
+
+..\..\zlib.lib:
+	cd ..\..
+	$(MAKE) -f win32\makefile.msc
+	cd contrib\untgz
+
+clean:
+	-del untgz.obj
+	-del untgz.exe
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/untgz.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/untgz.c
new file mode 100644
index 000000000..2c391e598
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/untgz/untgz.c
@@ -0,0 +1,674 @@
+/*
+ * untgz.c -- Display contents and extract files from a gzip'd TAR file
+ *
+ * written by Pedro A. Aranda Gutierrez <paag@tid.es>
+ * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org>
+ * various fixes by Cosmin Truta <cosmint@cs.ubbcluj.ro>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+
+#include "zlib.h"
+
+#ifdef unix
+#  include <unistd.h>
+#else
+#  include <direct.h>
+#  include <io.h>
+#endif
+
+#ifdef WIN32
+#include <windows.h>
+#  ifndef F_OK
+#    define F_OK  0
+#  endif
+#  define mkdir(dirname,mode)   _mkdir(dirname)
+#  ifdef _MSC_VER
+#    define access(path,mode)   _access(path,mode)
+#    define chmod(path,mode)    _chmod(path,mode)
+#    define strdup(str)         _strdup(str)
+#  endif
+#else
+#  include <utime.h>
+#endif
+
+
+/* values used in typeflag field */
+
+#define REGTYPE  '0'            /* regular file */
+#define AREGTYPE '\0'           /* regular file */
+#define LNKTYPE  '1'            /* link */
+#define SYMTYPE  '2'            /* reserved */
+#define CHRTYPE  '3'            /* character special */
+#define BLKTYPE  '4'            /* block special */
+#define DIRTYPE  '5'            /* directory */
+#define FIFOTYPE '6'            /* FIFO special */
+#define CONTTYPE '7'            /* reserved */
+
+/* GNU tar extensions */
+
+#define GNUTYPE_DUMPDIR  'D'    /* file names from dumped directory */
+#define GNUTYPE_LONGLINK 'K'    /* long link name */
+#define GNUTYPE_LONGNAME 'L'    /* long file name */
+#define GNUTYPE_MULTIVOL 'M'    /* continuation of file from another volume */
+#define GNUTYPE_NAMES    'N'    /* file name that does not fit into main hdr */
+#define GNUTYPE_SPARSE   'S'    /* sparse file */
+#define GNUTYPE_VOLHDR   'V'    /* tape/volume header */
+
+
+/* tar header */
+
+#define BLOCKSIZE     512
+#define SHORTNAMESIZE 100
+
+struct tar_header
+{                               /* byte offset */
+  char name[100];               /*   0 */
+  char mode[8];                 /* 100 */
+  char uid[8];                  /* 108 */
+  char gid[8];                  /* 116 */
+  char size[12];                /* 124 */
+  char mtime[12];               /* 136 */
+  char chksum[8];               /* 148 */
+  char typeflag;                /* 156 */
+  char linkname[100];           /* 157 */
+  char magic[6];                /* 257 */
+  char version[2];              /* 263 */
+  char uname[32];               /* 265 */
+  char gname[32];               /* 297 */
+  char devmajor[8];             /* 329 */
+  char devminor[8];             /* 337 */
+  char prefix[155];             /* 345 */
+                                /* 500 */
+};
+
+union tar_buffer
+{
+  char               buffer[BLOCKSIZE];
+  struct tar_header  header;
+};
+
+struct attr_item
+{
+  struct attr_item  *next;
+  char              *fname;
+  int                mode;
+  time_t             time;
+};
+
+enum { TGZ_EXTRACT, TGZ_LIST, TGZ_INVALID };
+
+char *TGZfname          OF((const char *));
+void TGZnotfound        OF((const char *));
+
+int getoct              OF((char *, int));
+char *strtime           OF((time_t *));
+int setfiletime         OF((char *, time_t));
+void push_attr          OF((struct attr_item **, char *, int, time_t));
+void restore_attr       OF((struct attr_item **));
+
+int ExprMatch           OF((char *, char *));
+
+int makedir             OF((char *));
+int matchname           OF((int, int, char **, char *));
+
+void error              OF((const char *));
+int tar                 OF((gzFile, int, int, int, char **));
+
+void help               OF((int));
+int main                OF((int, char **));
+
+char *prog;
+
+const char *TGZsuffix[] = { "\0", ".tar", ".tar.gz", ".taz", ".tgz", NULL };
+
+/* return the file name of the TGZ archive */
+/* or NULL if it does not exist */
+
+char *TGZfname (const char *arcname)
+{
+  static char buffer[1024];
+  int origlen,i;
+
+  strcpy(buffer,arcname);
+  origlen = strlen(buffer);
+
+  for (i=0; TGZsuffix[i]; i++)
+    {
+       strcpy(buffer+origlen,TGZsuffix[i]);
+       if (access(buffer,F_OK) == 0)
+         return buffer;
+    }
+  return NULL;
+}
+
+
+/* error message for the filename */
+
+void TGZnotfound (const char *arcname)
+{
+  int i;
+
+  fprintf(stderr,"%s: Couldn't find ",prog);
+  for (i=0;TGZsuffix[i];i++)
+    fprintf(stderr,(TGZsuffix[i+1]) ? "%s%s, " : "or %s%s\n",
+            arcname,
+            TGZsuffix[i]);
+  exit(1);
+}
+
+
+/* convert octal digits to int */
+/* on error return -1 */
+
+int getoct (char *p,int width)
+{
+  int result = 0;
+  char c;
+
+  while (width--)
+    {
+      c = *p++;
+      if (c == 0)
+        break;
+      if (c == ' ')
+        continue;
+      if (c < '0' || c > '7')
+        return -1;
+      result = result * 8 + (c - '0');
+    }
+  return result;
+}
+
+
+/* convert time_t to string */
+/* use the "YYYY/MM/DD hh:mm:ss" format */
+
+char *strtime (time_t *t)
+{
+  struct tm   *local;
+  static char result[32];
+
+  local = localtime(t);
+  sprintf(result,"%4d/%02d/%02d %02d:%02d:%02d",
+          local->tm_year+1900, local->tm_mon+1, local->tm_mday,
+          local->tm_hour, local->tm_min, local->tm_sec);
+  return result;
+}
+
+
+/* set file time */
+
+int setfiletime (char *fname,time_t ftime)
+{
+#ifdef WIN32
+  static int isWinNT = -1;
+  SYSTEMTIME st;
+  FILETIME locft, modft;
+  struct tm *loctm;
+  HANDLE hFile;
+  int result;
+
+  loctm = localtime(&ftime);
+  if (loctm == NULL)
+    return -1;
+
+  st.wYear         = (WORD)loctm->tm_year + 1900;
+  st.wMonth        = (WORD)loctm->tm_mon + 1;
+  st.wDayOfWeek    = (WORD)loctm->tm_wday;
+  st.wDay          = (WORD)loctm->tm_mday;
+  st.wHour         = (WORD)loctm->tm_hour;
+  st.wMinute       = (WORD)loctm->tm_min;
+  st.wSecond       = (WORD)loctm->tm_sec;
+  st.wMilliseconds = 0;
+  if (!SystemTimeToFileTime(&st, &locft) ||
+      !LocalFileTimeToFileTime(&locft, &modft))
+    return -1;
+
+  if (isWinNT < 0)
+    isWinNT = (GetVersion() < 0x80000000) ? 1 : 0;
+  hFile = CreateFile(fname, GENERIC_WRITE, 0, NULL, OPEN_EXISTING,
+                     (isWinNT ? FILE_FLAG_BACKUP_SEMANTICS : 0),
+                     NULL);
+  if (hFile == INVALID_HANDLE_VALUE)
+    return -1;
+  result = SetFileTime(hFile, NULL, NULL, &modft) ? 0 : -1;
+  CloseHandle(hFile);
+  return result;
+#else
+  struct utimbuf settime;
+
+  settime.actime = settime.modtime = ftime;
+  return utime(fname,&settime);
+#endif
+}
+
+
+/* push file attributes */
+
+void push_attr(struct attr_item **list,char *fname,int mode,time_t time)
+{
+  struct attr_item *item;
+
+  item = (struct attr_item *)malloc(sizeof(struct attr_item));
+  if (item == NULL)
+    error("Out of memory");
+  item->fname = strdup(fname);
+  item->mode  = mode;
+  item->time  = time;
+  item->next  = *list;
+  *list       = item;
+}
+
+
+/* restore file attributes */
+
+void restore_attr(struct attr_item **list)
+{
+  struct attr_item *item, *prev;
+
+  for (item = *list; item != NULL; )
+    {
+      setfiletime(item->fname,item->time);
+      chmod(item->fname,item->mode);
+      prev = item;
+      item = item->next;
+      free(prev);
+    }
+  *list = NULL;
+}
+
+
+/* match regular expression */
+
+#define ISSPECIAL(c) (((c) == '*') || ((c) == '/'))
+
+int ExprMatch (char *string,char *expr)
+{
+  while (1)
+    {
+      if (ISSPECIAL(*expr))
+        {
+          if (*expr == '/')
+            {
+              if (*string != '\\' && *string != '/')
+                return 0;
+              string ++; expr++;
+            }
+          else if (*expr == '*')
+            {
+              if (*expr ++ == 0)
+                return 1;
+              while (*++string != *expr)
+                if (*string == 0)
+                  return 0;
+            }
+        }
+      else
+        {
+          if (*string != *expr)
+            return 0;
+          if (*expr++ == 0)
+            return 1;
+          string++;
+        }
+    }
+}
+
+
+/* recursive mkdir */
+/* abort on ENOENT; ignore other errors like "directory already exists" */
+/* return 1 if OK */
+/*        0 on error */
+
+int makedir (char *newdir)
+{
+  char *buffer = strdup(newdir);
+  char *p;
+  int  len = strlen(buffer);
+
+  if (len <= 0) {
+    free(buffer);
+    return 0;
+  }
+  if (buffer[len-1] == '/') {
+    buffer[len-1] = '\0';
+  }
+  if (mkdir(buffer, 0755) == 0)
+    {
+      free(buffer);
+      return 1;
+    }
+
+  p = buffer+1;
+  while (1)
+    {
+      char hold;
+
+      while(*p && *p != '\\' && *p != '/')
+        p++;
+      hold = *p;
+      *p = 0;
+      if ((mkdir(buffer, 0755) == -1) && (errno == ENOENT))
+        {
+          fprintf(stderr,"%s: Couldn't create directory %s\n",prog,buffer);
+          free(buffer);
+          return 0;
+        }
+      if (hold == 0)
+        break;
+      *p++ = hold;
+    }
+  free(buffer);
+  return 1;
+}
+
+
+int matchname (int arg,int argc,char **argv,char *fname)
+{
+  if (arg == argc)      /* no arguments given (untgz tgzarchive) */
+    return 1;
+
+  while (arg < argc)
+    if (ExprMatch(fname,argv[arg++]))
+      return 1;
+
+  return 0; /* ignore this for the moment being */
+}
+
+
+/* tar file list or extract */
+
+int tar (gzFile in,int action,int arg,int argc,char **argv)
+{
+  union  tar_buffer buffer;
+  int    len;
+  int    err;
+  int    getheader = 1;
+  int    remaining = 0;
+  FILE   *outfile = NULL;
+  char   fname[BLOCKSIZE];
+  int    tarmode;
+  time_t tartime;
+  struct attr_item *attributes = NULL;
+
+  if (action == TGZ_LIST)
+    printf("    date      time     size                       file\n"
+           " ---------- -------- --------- -------------------------------------\n");
+  while (1)
+    {
+      len = gzread(in, &buffer, BLOCKSIZE);
+      if (len < 0)
+        error(gzerror(in, &err));
+      /*
+       * Always expect complete blocks to process
+       * the tar information.
+       */
+      if (len != BLOCKSIZE)
+        {
+          action = TGZ_INVALID; /* force error exit */
+          remaining = 0;        /* force I/O cleanup */
+        }
+
+      /*
+       * If we have to get a tar header
+       */
+      if (getheader >= 1)
+        {
+          /*
+           * if we met the end of the tar
+           * or the end-of-tar block,
+           * we are done
+           */
+          if (len == 0 || buffer.header.name[0] == 0)
+            break;
+
+          tarmode = getoct(buffer.header.mode,8);
+          tartime = (time_t)getoct(buffer.header.mtime,12);
+          if (tarmode == -1 || tartime == (time_t)-1)
+            {
+              buffer.header.name[0] = 0;
+              action = TGZ_INVALID;
+            }
+
+          if (getheader == 1)
+            {
+              strncpy(fname,buffer.header.name,SHORTNAMESIZE);
+              if (fname[SHORTNAMESIZE-1] != 0)
+                  fname[SHORTNAMESIZE] = 0;
+            }
+          else
+            {
+              /*
+               * The file name is longer than SHORTNAMESIZE
+               */
+              if (strncmp(fname,buffer.header.name,SHORTNAMESIZE-1) != 0)
+                  error("bad long name");
+              getheader = 1;
+            }
+
+          /*
+           * Act according to the type flag
+           */
+          switch (buffer.header.typeflag)
+            {
+            case DIRTYPE:
+              if (action == TGZ_LIST)
+                printf(" %s     <dir> %s\n",strtime(&tartime),fname);
+              if (action == TGZ_EXTRACT)
+                {
+                  makedir(fname);
+                  push_attr(&attributes,fname,tarmode,tartime);
+                }
+              break;
+            case REGTYPE:
+            case AREGTYPE:
+              remaining = getoct(buffer.header.size,12);
+              if (remaining == -1)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
+              if (action == TGZ_LIST)
+                printf(" %s %9d %s\n",strtime(&tartime),remaining,fname);
+              else if (action == TGZ_EXTRACT)
+                {
+                  if (matchname(arg,argc,argv,fname))
+                    {
+                      outfile = fopen(fname,"wb");
+                      if (outfile == NULL) {
+                        /* try creating directory */
+                        char *p = strrchr(fname, '/');
+                        if (p != NULL) {
+                          *p = '\0';
+                          makedir(fname);
+                          *p = '/';
+                          outfile = fopen(fname,"wb");
+                        }
+                      }
+                      if (outfile != NULL)
+                        printf("Extracting %s\n",fname);
+                      else
+                        fprintf(stderr, "%s: Couldn't create %s",prog,fname);
+                    }
+                  else
+                    outfile = NULL;
+                }
+              getheader = 0;
+              break;
+            case GNUTYPE_LONGLINK:
+            case GNUTYPE_LONGNAME:
+              remaining = getoct(buffer.header.size,12);
+              if (remaining < 0 || remaining >= BLOCKSIZE)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
+              len = gzread(in, fname, BLOCKSIZE);
+              if (len < 0)
+                error(gzerror(in, &err));
+              if (fname[BLOCKSIZE-1] != 0 || (int)strlen(fname) > remaining)
+                {
+                  action = TGZ_INVALID;
+                  break;
+                }
+              getheader = 2;
+              break;
+            default:
+              if (action == TGZ_LIST)
+                printf(" %s     <---> %s\n",strtime(&tartime),fname);
+              break;
+            }
+        }
+      else
+        {
+          unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining;
+
+          if (outfile != NULL)
+            {
+              if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes)
+                {
+                  fprintf(stderr,
+                    "%s: Error writing %s -- skipping\n",prog,fname);
+                  fclose(outfile);
+                  outfile = NULL;
+                  remove(fname);
+                }
+            }
+          remaining -= bytes;
+        }
+
+      if (remaining == 0)
+        {
+          getheader = 1;
+          if (outfile != NULL)
+            {
+              fclose(outfile);
+              outfile = NULL;
+              if (action != TGZ_INVALID)
+                push_attr(&attributes,fname,tarmode,tartime);
+            }
+        }
+
+      /*
+       * Abandon if errors are found
+       */
+      if (action == TGZ_INVALID)
+        {
+          error("broken archive");
+          break;
+        }
+    }
+
+  /*
+   * Restore file modes and time stamps
+   */
+  restore_attr(&attributes);
+
+  if (gzclose(in) != Z_OK)
+    error("failed gzclose");
+
+  return 0;
+}
+
+
+/* ============================================================ */
+
+void help(int exitval)
+{
+  printf("untgz version 0.2.1\n"
+         "  using zlib version %s\n\n",
+         zlibVersion());
+  printf("Usage: untgz file.tgz            extract all files\n"
+         "       untgz file.tgz fname ...  extract selected files\n"
+         "       untgz -l file.tgz         list archive contents\n"
+         "       untgz -h                  display this help\n");
+  exit(exitval);
+}
+
+void error(const char *msg)
+{
+  fprintf(stderr, "%s: %s\n", prog, msg);
+  exit(1);
+}
+
+
+/* ============================================================ */
+
+#if defined(WIN32) && defined(__GNUC__)
+int _CRT_glob = 0;      /* disable argument globbing in MinGW */
+#endif
+
+int main(int argc,char **argv)
+{
+    int         action = TGZ_EXTRACT;
+    int         arg = 1;
+    char        *TGZfile;
+    gzFile      *f;
+
+    prog = strrchr(argv[0],'\\');
+    if (prog == NULL)
+      {
+        prog = strrchr(argv[0],'/');
+        if (prog == NULL)
+          {
+            prog = strrchr(argv[0],':');
+            if (prog == NULL)
+              prog = argv[0];
+            else
+              prog++;
+          }
+        else
+          prog++;
+      }
+    else
+      prog++;
+
+    if (argc == 1)
+      help(0);
+
+    if (strcmp(argv[arg],"-l") == 0)
+      {
+        action = TGZ_LIST;
+        if (argc == ++arg)
+          help(0);
+      }
+    else if (strcmp(argv[arg],"-h") == 0)
+      {
+        help(0);
+      }
+
+    if ((TGZfile = TGZfname(argv[arg])) == NULL)
+      TGZnotfound(argv[arg]);
+
+    ++arg;
+    if ((action == TGZ_LIST) && (arg != argc))
+      help(1);
+
+/*
+ *  Process the TGZ file
+ */
+    switch(action)
+      {
+      case TGZ_LIST:
+      case TGZ_EXTRACT:
+        f = gzopen(TGZfile,"rb");
+        if (f == NULL)
+          {
+            fprintf(stderr,"%s: Couldn't gzopen %s\n",prog,TGZfile);
+            return 1;
+          }
+        exit(tar(f, action, arg, argc, argv));
+      break;
+
+      default:
+        error("Unknown option");
+        exit(1);
+      }
+
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/readme.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/readme.txt
new file mode 100644
index 000000000..48cccc0d2
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/readme.txt
@@ -0,0 +1,78 @@
+Building instructions for the DLL versions of Zlib 1.2.11
+========================================================
+
+This directory contains projects that build zlib and minizip using
+Microsoft Visual C++ 9.0/10.0.
+
+You don't need to build these projects yourself. You can download the
+binaries from:
+  http://www.winimage.com/zLibDll
+
+More information can be found at this site.
+
+
+
+
+
+Build instructions for Visual Studio 2008 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Compile assembly code (with Visual Studio Command Prompt) by running:
+   bld_ml64.bat (in contrib\masmx64)
+   bld_ml32.bat (in contrib\masmx86)
+- Open contrib\vstudio\vc9\zlibvc.sln with Microsoft Visual C++ 2008
+- Or run: vcbuild /rebuild contrib\vstudio\vc9\zlibvc.sln "Release|Win32"
+
+Build instructions for Visual Studio 2010 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc10\zlibvc.sln with Microsoft Visual C++ 2010
+
+Build instructions for Visual Studio 2012 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc11\zlibvc.sln with Microsoft Visual C++ 2012
+
+Build instructions for Visual Studio 2013 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc12\zlibvc.sln with Microsoft Visual C++ 2013
+
+Build instructions for Visual Studio 2015 (32 bits or 64 bits)
+--------------------------------------------------------------
+- Decompress current zlib, including all contrib/* files
+- Open contrib\vstudio\vc14\zlibvc.sln with Microsoft Visual C++ 2015
+
+
+Important
+---------
+- To use zlibwapi.dll in your application, you must define the
+  macro ZLIB_WINAPI when compiling your application's source files.
+
+
+Additional notes
+----------------
+- This DLL, named zlibwapi.dll, is compatible to the old zlib.dll built
+  by Gilles Vollant from the zlib 1.1.x sources, and distributed at
+    http://www.winimage.com/zLibDll
+  It uses the WINAPI calling convention for the exported functions, and
+  includes the minizip functionality. If your application needs that
+  particular build of zlib.dll, you can rename zlibwapi.dll to zlib.dll.
+
+- The new DLL was renamed because there exist several incompatible
+  versions of zlib.dll on the Internet.
+
+- There is also an official DLL build of zlib, named zlib1.dll. This one
+  is exporting the functions using the CDECL convention. See the file
+  win32\DLL_FAQ.txt found in this zlib distribution.
+
+- There used to be a ZLIB_DLL macro in zlib 1.1.x, but now this symbol
+  has a slightly different effect. To avoid compatibility problems, do
+  not define it here.
+
+
+Gilles Vollant
+info@winimage.com
+
+Visual Studio 2013 and 2015 Projects from Sean Hunt
+seandhunt_7@yahoo.com
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/miniunz.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/miniunz.vcxproj
new file mode 100644
index 000000000..74e15c90d
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/miniunz.vcxproj
@@ -0,0 +1,310 @@
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+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

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+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Itanium">

+      <Configuration>Release</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

+      <Configuration>Release</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|x64">

+      <Configuration>Release</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <ProjectGuid>{C52F9E7B-498A-42BE-8DB4-85A15694382A}</ProjectGuid>

+    <Keyword>Win32Proj</Keyword>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

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+    <ConfigurationType>Application</ConfigurationType>

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+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

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+  <ImportGroup Label="ExtensionSettings">

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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

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+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>

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diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlib.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlib.vcxproj
new file mode 100644
index 000000000..9088d176f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlib.vcxproj
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+    <ClCompile Include="..\..\..\inftrees.c" />

+    <ClCompile Include="..\..\testzlib\testzlib.c" />

+    <ClCompile Include="..\..\..\trees.c" />

+    <ClCompile Include="..\..\..\uncompr.c" />

+    <ClCompile Include="..\..\..\zutil.c" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlib.vcxproj.filters b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlib.vcxproj.filters
new file mode 100644
index 000000000..249daa89c
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlib.vcxproj.filters
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup>

+    <Filter Include="Source Files">

+      <UniqueIdentifier>{c1f6a2e3-5da5-4955-8653-310d3efe05a9}</UniqueIdentifier>

+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm</Extensions>

+    </Filter>

+    <Filter Include="Header Files">

+      <UniqueIdentifier>{c2aaffdc-2c95-4d6f-8466-4bec5890af2c}</UniqueIdentifier>

+      <Extensions>h;hpp;hxx;hm;inl;inc</Extensions>

+    </Filter>

+    <Filter Include="Resource Files">

+      <UniqueIdentifier>{c274fe07-05f2-461c-964b-f6341e4e7eb5}</UniqueIdentifier>

+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>

+    </Filter>

+  </ItemGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\..\adler32.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\compress.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\crc32.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\deflate.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\infback.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inflate.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inftrees.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\testzlib\testzlib.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\trees.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\uncompr.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\zutil.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+  </ItemGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlibdll.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlibdll.vcxproj
new file mode 100644
index 000000000..bcb08ff95
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlibdll.vcxproj
@@ -0,0 +1,310 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup Label="ProjectConfigurations">

+    <ProjectConfiguration Include="Debug|Itanium">

+      <Configuration>Debug</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|Win32">

+      <Configuration>Debug</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

+      <Configuration>Debug</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Itanium">

+      <Configuration>Release</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

+      <Configuration>Release</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|x64">

+      <Configuration>Release</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <ProjectGuid>{C52F9E7B-498A-42BE-8DB4-85A15694366A}</ProjectGuid>

+    <Keyword>Win32Proj</Keyword>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

+    <ConfigurationType>Application</ConfigurationType>

+    <CharacterSet>MultiByte</CharacterSet>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />

+  <ImportGroup Label="ExtensionSettings">

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <PropertyGroup Label="UserMacros" />

+  <PropertyGroup>

+    <_ProjectFileVersion>10.0.30128.1</_ProjectFileVersion>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\TestZlibDll$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">x86\TestZlibDll$(Configuration)\Tmp\</IntDir>

+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>

+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</GenerateManifest>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\TestZlibDll$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">x86\TestZlibDll$(Configuration)\Tmp\</IntDir>

+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>

+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</GenerateManifest>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\TestZlibDll$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">x64\TestZlibDll$(Configuration)\Tmp\</IntDir>

+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</LinkIncremental>

+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</GenerateManifest>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\TestZlibDll$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">ia64\TestZlibDll$(Configuration)\Tmp\</IntDir>

+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</LinkIncremental>

+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">false</GenerateManifest>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\TestZlibDll$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">x64\TestZlibDll$(Configuration)\Tmp\</IntDir>

+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>

+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</GenerateManifest>

+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\TestZlibDll$(Configuration)\</OutDir>

+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">ia64\TestZlibDll$(Configuration)\Tmp\</IntDir>

+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">false</LinkIncremental>

+    <GenerateManifest Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">false</GenerateManifest>

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />

+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>

+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />

+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />

+  </PropertyGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MinimalRebuild>true</MinimalRebuild>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>x86\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>

+      <SubSystem>Console</SubSystem>

+      <RandomizedBaseAddress>false</RandomizedBaseAddress>

+      <DataExecutionPrevention>

+      </DataExecutionPrevention>

+      <TargetMachine>MachineX86</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

+    <ClCompile>

+      <Optimization>MaxSpeed</Optimization>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

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+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>

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+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

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+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

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+    <Link>

+      <AdditionalDependencies>x86\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <SubSystem>Console</SubSystem>

+      <OptimizeReferences>true</OptimizeReferences>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <RandomizedBaseAddress>false</RandomizedBaseAddress>

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+      <TargetMachine>MachineX86</TargetMachine>

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+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

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+      <Optimization>Disabled</Optimization>

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+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MinimalRebuild>true</MinimalRebuild>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>x64\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>

+      <SubSystem>Console</SubSystem>

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+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

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+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <MinimalRebuild>true</MinimalRebuild>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>ia64\ZlibDllDebug\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <ProgramDatabaseFile>$(OutDir)testzlib.pdb</ProgramDatabaseFile>

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+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>x64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <SubSystem>Console</SubSystem>

+      <OptimizeReferences>true</OptimizeReferences>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <TargetMachine>MachineX64</TargetMachine>

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+    <Midl>

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+    <ClCompile>

+      <Optimization>MaxSpeed</Optimization>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <OmitFramePointers>true</OmitFramePointers>

+      <AdditionalIncludeDirectories>..\..\..;..\..\minizip;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <BasicRuntimeChecks>Default</BasicRuntimeChecks>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeader>

+      </PrecompiledHeader>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <WarningLevel>Level3</WarningLevel>

+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>

+    </ClCompile>

+    <Link>

+      <AdditionalDependencies>ia64\ZlibDllRelease\zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)testzlibdll.exe</OutputFile>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+      <SubSystem>Console</SubSystem>

+      <OptimizeReferences>true</OptimizeReferences>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <TargetMachine>MachineIA64</TargetMachine>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\testzlib\testzlib.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ProjectReference Include="zlibvc.vcxproj">

+      <Project>{8fd826f8-3739-44e6-8cc8-997122e53b8d}</Project>

+    </ProjectReference>

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlibdll.vcxproj.filters b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
new file mode 100644
index 000000000..53a8693bb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/testzlibdll.vcxproj.filters
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup>

+    <Filter Include="Source Files">

+      <UniqueIdentifier>{fa61a89f-93fc-4c89-b29e-36224b7592f4}</UniqueIdentifier>

+      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm</Extensions>

+    </Filter>

+    <Filter Include="Header Files">

+      <UniqueIdentifier>{d4b85da0-2ba2-4934-b57f-e2584e3848ee}</UniqueIdentifier>

+      <Extensions>h;hpp;hxx;hm;inl;inc</Extensions>

+    </Filter>

+    <Filter Include="Resource Files">

+      <UniqueIdentifier>{e573e075-00bd-4a7d-bd67-a8cc9bfc5aca}</UniqueIdentifier>

+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe</Extensions>

+    </Filter>

+  </ItemGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\testzlib\testzlib.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+  </ItemGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlib.rc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlib.rc
new file mode 100644
index 000000000..c4e4b016e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 2, 11, 0
+  PRODUCTVERSION 1, 2, 11, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.2.11\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibstat.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibstat.vcxproj
new file mode 100644
index 000000000..b9f2bbe5f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibstat.vcxproj
@@ -0,0 +1,473 @@
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+    <ClCompile Include="..\..\..\crc32.c" />

+    <ClCompile Include="..\..\..\deflate.c" />

+    <ClCompile Include="..\..\..\gzclose.c" />

+    <ClCompile Include="..\..\..\gzlib.c" />

+    <ClCompile Include="..\..\..\gzread.c" />

+    <ClCompile Include="..\..\..\gzwrite.c" />

+    <ClCompile Include="..\..\..\infback.c" />

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c" />

+    <ClCompile Include="..\..\..\inflate.c" />

+    <ClCompile Include="..\..\..\inftrees.c" />

+    <ClCompile Include="..\..\minizip\ioapi.c" />

+    <ClCompile Include="..\..\..\trees.c" />

+    <ClCompile Include="..\..\..\uncompr.c" />

+    <ClCompile Include="..\..\minizip\unzip.c" />

+    <ClCompile Include="..\..\minizip\zip.c" />

+    <ClCompile Include="..\..\..\zutil.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ResourceCompile Include="zlib.rc" />

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibstat.vcxproj.filters b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibstat.vcxproj.filters
new file mode 100644
index 000000000..c8c7f7ea3
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibstat.vcxproj.filters
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup>

+    <Filter Include="Source Files">

+      <UniqueIdentifier>{174213f6-7f66-4ae8-a3a8-a1e0a1e6ffdd}</UniqueIdentifier>

+    </Filter>

+  </ItemGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\..\adler32.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\compress.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\crc32.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\deflate.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\gzclose.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\gzlib.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\gzread.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\gzwrite.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\infback.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inflate.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inftrees.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\minizip\ioapi.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\trees.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\uncompr.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\minizip\unzip.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\minizip\zip.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\zutil.c">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+  </ItemGroup>

+  <ItemGroup>

+    <ResourceCompile Include="zlib.rc">

+      <Filter>Source Files</Filter>

+    </ResourceCompile>

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def">

+      <Filter>Source Files</Filter>

+    </None>

+  </ItemGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.def b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.def
new file mode 100644
index 000000000..f876c3bca
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.def
@@ -0,0 +1,153 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.2
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.sln b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.sln
new file mode 100644
index 000000000..6f6ffd5ee
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.sln
@@ -0,0 +1,135 @@
+

+Microsoft Visual Studio Solution File, Format Version 11.00

+# Visual Studio 2010

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Itanium = Debug|Itanium

+		Debug|Win32 = Debug|Win32

+		Debug|x64 = Debug|x64

+		Release|Itanium = Release|Itanium

+		Release|Win32 = Release|Win32

+		Release|x64 = Release|x64

+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium

+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32

+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.Build.0 = Debug|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.Build.0 = Release|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Itanium

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.Build.0 = Debug|Itanium

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Itanium

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.Build.0 = Release|Itanium

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Itanium

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.Build.0 = ReleaseWithoutAsm|Itanium

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Itanium

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.Build.0 = Debug|Itanium

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Itanium

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.Build.0 = Release|Itanium

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Itanium

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.Build.0 = Release|Itanium

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Itanium

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.Build.0 = Debug|Itanium

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Itanium

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.Build.0 = Release|Itanium

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

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new file mode 100644
index 000000000..6ff9ddb07
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc10/zlibvc.vcxproj
@@ -0,0 +1,657 @@
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new file mode 100644
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new file mode 100644
index 000000000..6d5595401
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diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/testzlibdll.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/testzlibdll.vcxproj
new file mode 100644
index 000000000..9f20c78f6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/testzlibdll.vcxproj
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+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlib.rc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlib.rc
new file mode 100644
index 000000000..c4e4b016e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 2, 11, 0
+  PRODUCTVERSION 1, 2, 11, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.2.11\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibstat.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibstat.vcxproj
new file mode 100644
index 000000000..806b76a88
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibstat.vcxproj
@@ -0,0 +1,464 @@
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+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\..\adler32.c" />

+    <ClCompile Include="..\..\..\compress.c" />

+    <ClCompile Include="..\..\..\crc32.c" />

+    <ClCompile Include="..\..\..\deflate.c" />

+    <ClCompile Include="..\..\..\gzclose.c" />

+    <ClCompile Include="..\..\..\gzlib.c" />

+    <ClCompile Include="..\..\..\gzread.c" />

+    <ClCompile Include="..\..\..\gzwrite.c" />

+    <ClCompile Include="..\..\..\infback.c" />

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c" />

+    <ClCompile Include="..\..\..\inflate.c" />

+    <ClCompile Include="..\..\..\inftrees.c" />

+    <ClCompile Include="..\..\minizip\ioapi.c" />

+    <ClCompile Include="..\..\..\trees.c" />

+    <ClCompile Include="..\..\..\uncompr.c" />

+    <ClCompile Include="..\..\minizip\unzip.c" />

+    <ClCompile Include="..\..\minizip\zip.c" />

+    <ClCompile Include="..\..\..\zutil.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ResourceCompile Include="zlib.rc" />

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.def b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.def
new file mode 100644
index 000000000..f876c3bca
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.def
@@ -0,0 +1,153 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.2
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.sln b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.sln
new file mode 100644
index 000000000..9fcbafdd0
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.sln
@@ -0,0 +1,117 @@
+

+Microsoft Visual Studio Solution File, Format Version 12.00

+# Visual Studio 2012

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Itanium = Debug|Itanium

+		Debug|Win32 = Debug|Win32

+		Debug|x64 = Debug|x64

+		Release|Itanium = Release|Itanium

+		Release|Win32 = Release|Win32

+		Release|x64 = Release|x64

+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium

+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32

+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.Build.0 = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.Build.0 = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.Build.0 = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+	EndGlobalSection

+	GlobalSection(SolutionProperties) = preSolution

+		HideSolutionNode = FALSE

+	EndGlobalSection

+EndGlobal

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.vcxproj
new file mode 100644
index 000000000..c65b95fdb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc11/zlibvc.vcxproj
@@ -0,0 +1,688 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup Label="ProjectConfigurations">

+    <ProjectConfiguration Include="Debug|Itanium">

+      <Configuration>Debug</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|Win32">

+      <Configuration>Debug</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

+      <Configuration>Debug</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|Itanium">

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diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/miniunz.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/miniunz.vcxproj
new file mode 100644
index 000000000..8eee81660
--- /dev/null
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@@ -0,0 +1,316 @@
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new file mode 100644
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diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/testzlibdll.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/testzlibdll.vcxproj
new file mode 100644
index 000000000..0bac3420e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/testzlibdll.vcxproj
@@ -0,0 +1,316 @@
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\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlib.rc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlib.rc
new file mode 100644
index 000000000..c4e4b016e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 2, 11, 0
+  PRODUCTVERSION 1, 2, 11, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.2.11\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibstat.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibstat.vcxproj
new file mode 100644
index 000000000..4168bdf17
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibstat.vcxproj
@@ -0,0 +1,467 @@
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+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.def b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.def
new file mode 100644
index 000000000..f876c3bca
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.def
@@ -0,0 +1,153 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.2
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.sln b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.sln
new file mode 100644
index 000000000..273b7686b
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.sln
@@ -0,0 +1,119 @@
+

+Microsoft Visual Studio Solution File, Format Version 12.00

+# Visual Studio 2013

+VisualStudioVersion = 12.0.40629.0

+MinimumVisualStudioVersion = 10.0.40219.1

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Itanium = Debug|Itanium

+		Debug|Win32 = Debug|Win32

+		Debug|x64 = Debug|x64

+		Release|Itanium = Release|Itanium

+		Release|Win32 = Release|Win32

+		Release|x64 = Release|x64

+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium

+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32

+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.ActiveCfg = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|Win32.Build.0 = Debug|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.ActiveCfg = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Debug|x64.Build.0 = Debug|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Itanium.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.Build.0 = ReleaseWithoutAsm|Win32

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = ReleaseWithoutAsm|x64

+		{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.Build.0 = ReleaseWithoutAsm|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|Win32.Build.0 = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.ActiveCfg = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Debug|x64.Build.0 = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|Win32.Build.0 = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.Release|x64.Build.0 = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694366A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.ActiveCfg = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|Win32.Build.0 = Debug|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.ActiveCfg = Debug|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Debug|x64.Build.0 = Debug|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Itanium.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|Win32.Build.0 = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.ActiveCfg = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.Release|x64.Build.0 = Release|x64

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.ActiveCfg = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|Win32.Build.0 = Debug|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.ActiveCfg = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Debug|x64.Build.0 = Debug|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|Win32.Build.0 = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.ActiveCfg = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.Release|x64.Build.0 = Release|x64

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Itanium.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32

+		{C52F9E7B-498A-42BE-8DB4-85A15694382A}.ReleaseWithoutAsm|x64.ActiveCfg = Release|x64

+	EndGlobalSection

+	GlobalSection(SolutionProperties) = preSolution

+		HideSolutionNode = FALSE

+	EndGlobalSection

+EndGlobal

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.vcxproj
new file mode 100644
index 000000000..099c094e6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc12/zlibvc.vcxproj
@@ -0,0 +1,692 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup Label="ProjectConfigurations">

+    <ProjectConfiguration Include="Debug|Itanium">

+      <Configuration>Debug</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|Win32">

+      <Configuration>Debug</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Debug|x64">

+      <Configuration>Debug</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|Itanium">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|Win32">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="ReleaseWithoutAsm|x64">

+      <Configuration>ReleaseWithoutAsm</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Itanium">

+      <Configuration>Release</Configuration>

+      <Platform>Itanium</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|Win32">

+      <Configuration>Release</Configuration>

+      <Platform>Win32</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|x64">

+      <Configuration>Release</Configuration>

+      <Platform>x64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <ProjectGuid>{8FD826F8-3739-44E6-8CC8-997122E53B8D}</ProjectGuid>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <PlatformToolset>v120</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <PlatformToolset>v120</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v120</PlatformToolset>

+    <CharacterSet>Unicode</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <PlatformToolset>v120</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <PlatformToolset>v120</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <PlatformToolset>v120</PlatformToolset>

+  </PropertyGroup>

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+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

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+    <PlatformToolset>v120</PlatformToolset>

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+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <PlatformToolset>v120</PlatformToolset>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">

+    <ConfigurationType>DynamicLibrary</ConfigurationType>

+    <UseOfMfc>false</UseOfMfc>

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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

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+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

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+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">

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+    <_ProjectFileVersion>10.0.30128.1</_ProjectFileVersion>

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new file mode 100644
index 000000000..9d6f52ecd
--- /dev/null
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new file mode 100644
index 000000000..196f3833e
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diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlib.rc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlib.rc
new file mode 100644
index 000000000..c4e4b016e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 2, 11, 0
+  PRODUCTVERSION 1, 2, 11, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.2.11\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibstat.vcxproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibstat.vcxproj
new file mode 100644
index 000000000..a3dcf79fa
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibstat.vcxproj
@@ -0,0 +1,467 @@
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+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>OldStyle</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:X86 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>OldStyle</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <Optimization>Disabled</Optimization>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+      <DebugInformationFormat>OldStyle</DebugInformationFormat>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <AdditionalDependencies>..\..\masmx64\gvmat64.obj;..\..\masmx64\inffasx64.obj;%(AdditionalDependencies)</AdditionalDependencies>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|x64'">

+    <Midl>

+      <TargetEnvironment>X64</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:AMD64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">

+    <Midl>

+      <TargetEnvironment>Itanium</TargetEnvironment>

+    </Midl>

+    <ClCompile>

+      <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>

+      <AdditionalIncludeDirectories>..\..\..;..\..\masmx86;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <PreprocessorDefinitions>ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <StringPooling>true</StringPooling>

+      <ExceptionHandling>

+      </ExceptionHandling>

+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>

+      <BufferSecurityCheck>false</BufferSecurityCheck>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <PrecompiledHeaderOutputFile>$(IntDir)zlibstat.pch</PrecompiledHeaderOutputFile>

+      <AssemblerListingLocation>$(IntDir)</AssemblerListingLocation>

+      <ObjectFileName>$(IntDir)</ObjectFileName>

+      <ProgramDataBaseFileName>$(OutDir)</ProgramDataBaseFileName>

+      <WarningLevel>Level3</WarningLevel>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </ClCompile>

+    <ResourceCompile>

+      <Culture>0x040c</Culture>

+    </ResourceCompile>

+    <Lib>

+      <AdditionalOptions>/MACHINE:IA64 /NODEFAULTLIB %(AdditionalOptions)</AdditionalOptions>

+      <OutputFile>$(OutDir)zlibstat.lib</OutputFile>

+      <SuppressStartupBanner>true</SuppressStartupBanner>

+    </Lib>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\..\adler32.c" />

+    <ClCompile Include="..\..\..\compress.c" />

+    <ClCompile Include="..\..\..\crc32.c" />

+    <ClCompile Include="..\..\..\deflate.c" />

+    <ClCompile Include="..\..\..\gzclose.c" />

+    <ClCompile Include="..\..\..\gzlib.c" />

+    <ClCompile Include="..\..\..\gzread.c" />

+    <ClCompile Include="..\..\..\gzwrite.c" />

+    <ClCompile Include="..\..\..\infback.c" />

+    <ClCompile Include="..\..\masmx64\inffas8664.c">

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Itanium'">true</ExcludedFromBuild>

+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>

+    </ClCompile>

+    <ClCompile Include="..\..\..\inffast.c" />

+    <ClCompile Include="..\..\..\inflate.c" />

+    <ClCompile Include="..\..\..\inftrees.c" />

+    <ClCompile Include="..\..\minizip\ioapi.c" />

+    <ClCompile Include="..\..\..\trees.c" />

+    <ClCompile Include="..\..\..\uncompr.c" />

+    <ClCompile Include="..\..\minizip\unzip.c" />

+    <ClCompile Include="..\..\minizip\zip.c" />

+    <ClCompile Include="..\..\..\zutil.c" />

+  </ItemGroup>

+  <ItemGroup>

+    <ResourceCompile Include="zlib.rc" />

+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.def b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.def
new file mode 100644
index 000000000..f876c3bca
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.def
@@ -0,0 +1,153 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.2
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.sln b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.sln
new file mode 100644
index 000000000..a90cf5131
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.sln
@@ -0,0 +1,119 @@
+

+Microsoft Visual Studio Solution File, Format Version 12.00

+# Visual Studio 14

+VisualStudioVersion = 14.0.25420.1

+MinimumVisualStudioVersion = 10.0.40219.1

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcxproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlibdll", "testzlibdll.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcxproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcxproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Itanium = Debug|Itanium

+		Debug|Win32 = Debug|Win32

+		Debug|x64 = Debug|x64

+		Release|Itanium = Release|Itanium

+		Release|Win32 = Release|Win32

+		Release|x64 = Release|x64

+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium

+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32

+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.Build.0 = Debug|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.ActiveCfg = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|x64.Build.0 = Debug|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Itanium.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.ActiveCfg = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|Win32.Build.0 = Release|Win32

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.ActiveCfg = Release|x64

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Release|x64.Build.0 = Release|x64

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new file mode 100644
index 000000000..55ae5af60
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc14/zlibvc.vcxproj
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+  </ItemGroup>

+  <ItemGroup>

+    <None Include="zlibvc.def" />

+  </ItemGroup>

+  <ItemGroup>

+    <ClInclude Include="..\..\..\deflate.h" />

+    <ClInclude Include="..\..\..\infblock.h" />

+    <ClInclude Include="..\..\..\infcodes.h" />

+    <ClInclude Include="..\..\..\inffast.h" />

+    <ClInclude Include="..\..\..\inftrees.h" />

+    <ClInclude Include="..\..\..\infutil.h" />

+    <ClInclude Include="..\..\..\zconf.h" />

+    <ClInclude Include="..\..\..\zlib.h" />

+    <ClInclude Include="..\..\..\zutil.h" />

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
\ No newline at end of file
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/miniunz.vcproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/miniunz.vcproj
new file mode 100644
index 000000000..7da32b91e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/miniunz.vcproj
@@ -0,0 +1,565 @@
+<?xml version="1.0" encoding="Windows-1252"?>

+<VisualStudioProject

+	ProjectType="Visual C++"

+	Version="9.00"

+	Name="miniunz"

+	ProjectGUID="{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+	Keyword="Win32Proj"

+	TargetFrameworkVersion="131072"

+	>

+	<Platforms>

+		<Platform

+			Name="Win32"

+		/>

+		<Platform

+			Name="x64"

+		/>

+		<Platform

+			Name="Itanium"

+		/>

+	</Platforms>

+	<ToolFiles>

+	</ToolFiles>

+	<Configurations>

+		<Configuration

+			Name="Debug|Win32"

+			OutputDirectory="x86\MiniUnzip$(ConfigurationName)"

+			IntermediateDirectory="x86\MiniUnzip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="1"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="4"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/miniunz.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/miniunz.pdb"

+				SubSystem="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Win32"

+			OutputDirectory="x86\MiniUnzip$(ConfigurationName)"

+			IntermediateDirectory="x86\MiniUnzip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/miniunz.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|x64"

+			OutputDirectory="x64\MiniUnzip$(ConfigurationName)"

+			IntermediateDirectory="x64\MiniUnzip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/miniunz.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/miniunz.pdb"

+				SubSystem="1"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|Itanium"

+			OutputDirectory="ia64\MiniUnzip$(ConfigurationName)"

+			IntermediateDirectory="ia64\MiniUnzip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/miniunz.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/miniunz.pdb"

+				SubSystem="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|x64"

+			OutputDirectory="x64\MiniUnzip$(ConfigurationName)"

+			IntermediateDirectory="x64\MiniUnzip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/miniunz.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Itanium"

+			OutputDirectory="ia64\MiniUnzip$(ConfigurationName)"

+			IntermediateDirectory="ia64\MiniUnzip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/miniunz.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+	</Configurations>

+	<References>

+	</References>

+	<Files>

+		<Filter

+			Name="Source Files"

+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"

+			>

+			<File

+				RelativePath="..\..\minizip\miniunz.c"

+				>

+			</File>

+		</Filter>

+		<Filter

+			Name="Header Files"

+			Filter="h;hpp;hxx;hm;inl;inc"

+			>

+		</Filter>

+		<Filter

+			Name="Resource Files"

+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"

+			>

+		</Filter>

+	</Files>

+	<Globals>

+	</Globals>

+</VisualStudioProject>

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/minizip.vcproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/minizip.vcproj
new file mode 100644
index 000000000..e57e07d90
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/minizip.vcproj
@@ -0,0 +1,562 @@
+<?xml version="1.0" encoding="Windows-1252"?>

+<VisualStudioProject

+	ProjectType="Visual C++"

+	Version="9.00"

+	Name="minizip"

+	ProjectGUID="{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+	Keyword="Win32Proj"

+	TargetFrameworkVersion="131072"

+	>

+	<Platforms>

+		<Platform

+			Name="Win32"

+		/>

+		<Platform

+			Name="x64"

+		/>

+		<Platform

+			Name="Itanium"

+		/>

+	</Platforms>

+	<ToolFiles>

+	</ToolFiles>

+	<Configurations>

+		<Configuration

+			Name="Debug|Win32"

+			OutputDirectory="x86\MiniZip$(ConfigurationName)"

+			IntermediateDirectory="x86\MiniZip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="1"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="4"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/minizip.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/minizip.pdb"

+				SubSystem="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Win32"

+			OutputDirectory="x86\MiniZip$(ConfigurationName)"

+			IntermediateDirectory="x86\MiniZip$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/minizip.exe"

+				LinkIncremental="1"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|x64"

+			OutputDirectory="x64\$(ConfigurationName)"

+			IntermediateDirectory="x64\$(ConfigurationName)"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/minizip.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/minizip.pdb"

+				SubSystem="1"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|Itanium"

+			OutputDirectory="ia64\$(ConfigurationName)"

+			IntermediateDirectory="ia64\$(ConfigurationName)"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/minizip.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/minizip.pdb"

+				SubSystem="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|x64"

+			OutputDirectory="x64\$(ConfigurationName)"

+			IntermediateDirectory="x64\$(ConfigurationName)"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/minizip.exe"

+				LinkIncremental="1"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Itanium"

+			OutputDirectory="ia64\$(ConfigurationName)"

+			IntermediateDirectory="ia64\$(ConfigurationName)"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/minizip.exe"

+				LinkIncremental="1"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+	</Configurations>

+	<References>

+	</References>

+	<Files>

+		<Filter

+			Name="Source Files"

+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"

+			>

+			<File

+				RelativePath="..\..\minizip\minizip.c"

+				>

+			</File>

+		</Filter>

+		<Filter

+			Name="Header Files"

+			Filter="h;hpp;hxx;hm;inl;inc"

+			>

+		</Filter>

+		<Filter

+			Name="Resource Files"

+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"

+			>

+		</Filter>

+	</Files>

+	<Globals>

+	</Globals>

+</VisualStudioProject>

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/testzlib.vcproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/testzlib.vcproj
new file mode 100644
index 000000000..9cb0bf877
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/testzlib.vcproj
@@ -0,0 +1,852 @@
+<?xml version="1.0" encoding="Windows-1252"?>

+<VisualStudioProject

+	ProjectType="Visual C++"

+	Version="9,00"

+	Name="testzlib"

+	ProjectGUID="{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+	RootNamespace="testzlib"

+	Keyword="Win32Proj"

+	TargetFrameworkVersion="131072"

+	>

+	<Platforms>

+		<Platform

+			Name="Win32"

+		/>

+		<Platform

+			Name="x64"

+		/>

+		<Platform

+			Name="Itanium"

+		/>

+	</Platforms>

+	<ToolFiles>

+	</ToolFiles>

+	<Configurations>

+		<Configuration

+			Name="Debug|Win32"

+			OutputDirectory="x86\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="1"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerOutput="4"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="4"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"

+				SubSystem="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|x64"

+			OutputDirectory="x64\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				AssemblerListingLocation="$(IntDir)\"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj"

+				GenerateManifest="false"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|Itanium"

+			OutputDirectory="ia64\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ZLIB_WINAPI;_DEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerOutput="4"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"

+				SubSystem="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|Win32"

+			OutputDirectory="x86\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			CharacterSet="2"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|x64"

+			OutputDirectory="x64\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				AssemblerListingLocation="$(IntDir)\"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies=""

+				GenerateManifest="false"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|Itanium"

+			OutputDirectory="ia64\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			CharacterSet="2"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Win32"

+			OutputDirectory="x86\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="x86\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			CharacterSet="2"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|x64"

+			OutputDirectory="x64\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="x64\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ASMV;ASMINF;WIN32;ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				AssemblerListingLocation="$(IntDir)\"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj"

+				GenerateManifest="false"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Itanium"

+			OutputDirectory="ia64\TestZlib$(ConfigurationName)"

+			IntermediateDirectory="ia64\TestZlib$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			CharacterSet="2"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\.."

+				PreprocessorDefinitions="ZLIB_WINAPI;NDEBUG;_CONSOLE;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+	</Configurations>

+	<References>

+	</References>

+	<Files>

+		<Filter

+			Name="Source Files"

+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"

+			>

+			<File

+				RelativePath="..\..\..\adler32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\compress.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\crc32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\deflate.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\infback.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\masmx64\inffas8664.c"

+				>

+				<FileConfiguration

+					Name="Debug|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Debug|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="ReleaseWithoutAsm|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="ReleaseWithoutAsm|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+			</File>

+			<File

+				RelativePath="..\..\..\inffast.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inflate.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inftrees.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\testzlib\testzlib.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\trees.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\uncompr.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\zutil.c"

+				>

+			</File>

+		</Filter>

+		<Filter

+			Name="Header Files"

+			Filter="h;hpp;hxx;hm;inl;inc"

+			>

+		</Filter>

+		<Filter

+			Name="Resource Files"

+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"

+			>

+		</Filter>

+	</Files>

+	<Globals>

+	</Globals>

+</VisualStudioProject>

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/testzlibdll.vcproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/testzlibdll.vcproj
new file mode 100644
index 000000000..b1ddde05f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/testzlibdll.vcproj
@@ -0,0 +1,565 @@
+<?xml version="1.0" encoding="Windows-1252"?>

+<VisualStudioProject

+	ProjectType="Visual C++"

+	Version="9.00"

+	Name="TestZlibDll"

+	ProjectGUID="{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+	Keyword="Win32Proj"

+	TargetFrameworkVersion="131072"

+	>

+	<Platforms>

+		<Platform

+			Name="Win32"

+		/>

+		<Platform

+			Name="x64"

+		/>

+		<Platform

+			Name="Itanium"

+		/>

+	</Platforms>

+	<ToolFiles>

+	</ToolFiles>

+	<Configurations>

+		<Configuration

+			Name="Debug|Win32"

+			OutputDirectory="x86\TestZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x86\TestZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="1"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="4"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x86\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"

+				SubSystem="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Win32"

+			OutputDirectory="x86\TestZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x86\TestZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x86\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				TargetMachine="1"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|x64"

+			OutputDirectory="x64\TestZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x64\TestZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x64\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"

+				SubSystem="1"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|Itanium"

+			OutputDirectory="ia64\TestZlibDll$(ConfigurationName)"

+			IntermediateDirectory="ia64\TestZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;_DEBUG;_CONSOLE;WIN64"

+				MinimalRebuild="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="ia64\ZlibDllDebug\zlibwapi.lib"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="2"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/testzlib.pdb"

+				SubSystem="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|x64"

+			OutputDirectory="x64\TestZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x64\TestZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="x64\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Itanium"

+			OutputDirectory="ia64\TestZlibDll$(ConfigurationName)"

+			IntermediateDirectory="ia64\TestZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="1"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			CharacterSet="2"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="2"

+				InlineFunctionExpansion="1"

+				OmitFramePointers="true"

+				AdditionalIncludeDirectories="..\..\..;..\..\minizip"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;ZLIB_WINAPI;NDEBUG;_CONSOLE;WIN64"

+				StringPooling="true"

+				BasicRuntimeChecks="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				UsePrecompiledHeader="0"

+				AssemblerListingLocation="$(IntDir)\"

+				WarningLevel="3"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="ia64\ZlibDllRelease\zlibwapi.lib"

+				OutputFile="$(OutDir)/testzlib.exe"

+				LinkIncremental="1"

+				GenerateManifest="false"

+				GenerateDebugInformation="true"

+				SubSystem="1"

+				OptimizeReferences="2"

+				EnableCOMDATFolding="2"

+				OptimizeForWindows98="1"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCWebDeploymentTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+	</Configurations>

+	<References>

+	</References>

+	<Files>

+		<Filter

+			Name="Source Files"

+			Filter="cpp;c;cxx;def;odl;idl;hpj;bat;asm"

+			>

+			<File

+				RelativePath="..\..\testzlib\testzlib.c"

+				>

+			</File>

+		</Filter>

+		<Filter

+			Name="Header Files"

+			Filter="h;hpp;hxx;hm;inl;inc"

+			>

+		</Filter>

+		<Filter

+			Name="Resource Files"

+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"

+			>

+		</Filter>

+	</Files>

+	<Globals>

+	</Globals>

+</VisualStudioProject>

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlib.rc b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlib.rc
new file mode 100644
index 000000000..c4e4b016e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlib.rc
@@ -0,0 +1,32 @@
+#include <windows.h>
+
+#define IDR_VERSION1  1
+IDR_VERSION1	VERSIONINFO	MOVEABLE IMPURE LOADONCALL DISCARDABLE
+  FILEVERSION	 1, 2, 11, 0
+  PRODUCTVERSION 1, 2, 11, 0
+  FILEFLAGSMASK	VS_FFI_FILEFLAGSMASK
+  FILEFLAGS	0
+  FILEOS	VOS_DOS_WINDOWS32
+  FILETYPE	VFT_DLL
+  FILESUBTYPE	0	// not used
+BEGIN
+  BLOCK "StringFileInfo"
+  BEGIN
+    BLOCK "040904E4"
+    //language ID = U.S. English, char set = Windows, Multilingual
+
+    BEGIN
+      VALUE "FileDescription", "zlib data compression and ZIP file I/O library\0"
+      VALUE "FileVersion",	"1.2.11\0"
+      VALUE "InternalName",	"zlib\0"
+      VALUE "OriginalFilename",	"zlibwapi.dll\0"
+      VALUE "ProductName",	"ZLib.DLL\0"
+      VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0"
+      VALUE "LegalCopyright", "(C) 1995-2017 Jean-loup Gailly & Mark Adler\0"
+    END
+  END
+  BLOCK "VarFileInfo"
+  BEGIN
+    VALUE "Translation", 0x0409, 1252
+  END
+END
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibstat.vcproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibstat.vcproj
new file mode 100644
index 000000000..61c76c7c5
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibstat.vcproj
@@ -0,0 +1,835 @@
+<?xml version="1.0" encoding="Windows-1252"?>

+<VisualStudioProject

+	ProjectType="Visual C++"

+	Version="9,00"

+	Name="zlibstat"

+	ProjectGUID="{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+	TargetFrameworkVersion="131072"

+	>

+	<Platforms>

+		<Platform

+			Name="Win32"

+		/>

+		<Platform

+			Name="x64"

+		/>

+		<Platform

+			Name="Itanium"

+		/>

+	</Platforms>

+	<ToolFiles>

+	</ToolFiles>

+	<Configurations>

+		<Configuration

+			Name="Debug|Win32"

+			OutputDirectory="x86\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				ExceptionHandling="0"

+				RuntimeLibrary="1"

+				BufferSecurityCheck="false"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="1"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|x64"

+			OutputDirectory="x64\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="x64\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				ExceptionHandling="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="1"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|Itanium"

+			OutputDirectory="ia64\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="ia64\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				ExceptionHandling="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+				Detect64BitPortabilityProblems="true"

+				DebugInformationFormat="1"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:IA64 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Win32"

+			OutputDirectory="x86\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"

+				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj "

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|x64"

+			OutputDirectory="x64\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="x64\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ASMV;ASMINF;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"

+				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj "

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Itanium"

+			OutputDirectory="ia64\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="ia64\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:IA64 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|Win32"

+			OutputDirectory="x86\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="x86\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:X86 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|x64"

+			OutputDirectory="x64\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="x64\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="3"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:AMD64 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|Itanium"

+			OutputDirectory="ia64\ZlibStat$(ConfigurationName)"

+			IntermediateDirectory="ia64\ZlibStat$(ConfigurationName)\Tmp"

+			ConfigurationType="4"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				TargetEnvironment="2"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="ZLIB_WINAPI;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibstat.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLibrarianTool"

+				AdditionalOptions="/MACHINE:IA64 /NODEFAULTLIB"

+				OutputFile="$(OutDir)\zlibstat.lib"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+	</Configurations>

+	<References>

+	</References>

+	<Files>

+		<Filter

+			Name="Source Files"

+			>

+			<File

+				RelativePath="..\..\..\adler32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\compress.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\crc32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\deflate.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzclose.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzguts.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzlib.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzread.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzwrite.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\infback.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\masmx64\inffas8664.c"

+				>

+				<FileConfiguration

+					Name="Debug|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Debug|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="ReleaseWithoutAsm|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="ReleaseWithoutAsm|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+			</File>

+			<File

+				RelativePath="..\..\..\inffast.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inflate.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inftrees.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\minizip\ioapi.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\trees.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\uncompr.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\minizip\unzip.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\minizip\zip.c"

+				>

+			</File>

+			<File

+				RelativePath=".\zlib.rc"

+				>

+			</File>

+			<File

+				RelativePath=".\zlibvc.def"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\zutil.c"

+				>

+			</File>

+		</Filter>

+	</Files>

+	<Globals>

+	</Globals>

+</VisualStudioProject>

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.def b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.def
new file mode 100644
index 000000000..f876c3bca
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.def
@@ -0,0 +1,153 @@
+LIBRARY
+; zlib data compression and ZIP file I/O library
+
+VERSION		1.2
+
+EXPORTS
+        adler32                                  @1
+        compress                                 @2
+        crc32                                    @3
+        deflate                                  @4
+        deflateCopy                              @5
+        deflateEnd                               @6
+        deflateInit2_                            @7
+        deflateInit_                             @8
+        deflateParams                            @9
+        deflateReset                             @10
+        deflateSetDictionary                     @11
+        gzclose                                  @12
+        gzdopen                                  @13
+        gzerror                                  @14
+        gzflush                                  @15
+        gzopen                                   @16
+        gzread                                   @17
+        gzwrite                                  @18
+        inflate                                  @19
+        inflateEnd                               @20
+        inflateInit2_                            @21
+        inflateInit_                             @22
+        inflateReset                             @23
+        inflateSetDictionary                     @24
+        inflateSync                              @25
+        uncompress                               @26
+        zlibVersion                              @27
+        gzprintf                                 @28
+        gzputc                                   @29
+        gzgetc                                   @30
+        gzseek                                   @31
+        gzrewind                                 @32
+        gztell                                   @33
+        gzeof                                    @34
+        gzsetparams                              @35
+        zError                                   @36
+        inflateSyncPoint                         @37
+        get_crc_table                            @38
+        compress2                                @39
+        gzputs                                   @40
+        gzgets                                   @41
+        inflateCopy                              @42
+        inflateBackInit_                         @43
+        inflateBack                              @44
+        inflateBackEnd                           @45
+        compressBound                            @46
+        deflateBound                             @47
+        gzclearerr                               @48
+        gzungetc                                 @49
+        zlibCompileFlags                         @50
+        deflatePrime                             @51
+        deflatePending                           @52
+
+        unzOpen                                  @61
+        unzClose                                 @62
+        unzGetGlobalInfo                         @63
+        unzGetCurrentFileInfo                    @64
+        unzGoToFirstFile                         @65
+        unzGoToNextFile                          @66
+        unzOpenCurrentFile                       @67
+        unzReadCurrentFile                       @68
+        unzOpenCurrentFile3                      @69
+        unztell                                  @70
+        unzeof                                   @71
+        unzCloseCurrentFile                      @72
+        unzGetGlobalComment                      @73
+        unzStringFileNameCompare                 @74
+        unzLocateFile                            @75
+        unzGetLocalExtrafield                    @76
+        unzOpen2                                 @77
+        unzOpenCurrentFile2                      @78
+        unzOpenCurrentFilePassword               @79
+
+        zipOpen                                  @80
+        zipOpenNewFileInZip                      @81
+        zipWriteInFileInZip                      @82
+        zipCloseFileInZip                        @83
+        zipClose                                 @84
+        zipOpenNewFileInZip2                     @86
+        zipCloseFileInZipRaw                     @87
+        zipOpen2                                 @88
+        zipOpenNewFileInZip3                     @89
+
+        unzGetFilePos                            @100
+        unzGoToFilePos                           @101
+
+        fill_win32_filefunc                      @110
+
+; zlibwapi v1.2.4 added:
+        fill_win32_filefunc64                   @111
+        fill_win32_filefunc64A                  @112
+        fill_win32_filefunc64W                  @113
+
+        unzOpen64                               @120
+        unzOpen2_64                             @121
+        unzGetGlobalInfo64                      @122
+        unzGetCurrentFileInfo64                 @124
+        unzGetCurrentFileZStreamPos64           @125
+        unztell64                               @126
+        unzGetFilePos64                         @127
+        unzGoToFilePos64                        @128
+
+        zipOpen64                               @130
+        zipOpen2_64                             @131
+        zipOpenNewFileInZip64                   @132
+        zipOpenNewFileInZip2_64                 @133
+        zipOpenNewFileInZip3_64                 @134
+        zipOpenNewFileInZip4_64                 @135
+        zipCloseFileInZipRaw64                  @136
+
+; zlib1 v1.2.4 added:
+        adler32_combine                         @140
+        crc32_combine                           @142
+        deflateSetHeader                        @144
+        deflateTune                             @145
+        gzbuffer                                @146
+        gzclose_r                               @147
+        gzclose_w                               @148
+        gzdirect                                @149
+        gzoffset                                @150
+        inflateGetHeader                        @156
+        inflateMark                             @157
+        inflatePrime                            @158
+        inflateReset2                           @159
+        inflateUndermine                        @160
+
+; zlib1 v1.2.6 added:
+        gzgetc_                                 @161
+        inflateResetKeep                        @163
+        deflateResetKeep                        @164
+
+; zlib1 v1.2.7 added:
+        gzopen_w                                @165
+
+; zlib1 v1.2.8 added:
+        inflateGetDictionary                    @166
+        gzvprintf                               @167
+
+; zlib1 v1.2.9 added:
+        inflateCodesUsed                        @168
+        inflateValidate                         @169
+        uncompress2                             @170
+        gzfread                                 @171
+        gzfwrite                                @172
+        deflateGetDictionary                    @173
+        adler32_z                               @174
+        crc32_z                                 @175
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.sln b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.sln
new file mode 100644
index 000000000..b4829671f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.sln
@@ -0,0 +1,144 @@
+

+Microsoft Visual Studio Solution File, Format Version 10.00

+# Visual Studio 2008

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "zlibvc.vcproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "zlibstat.vcproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "testzlib", "testzlib.vcproj", "{AA6666AA-E09F-4135-9C0C-4FE50C3C654B}"

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "TestZlibDll", "testzlibdll.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694366A}"

+	ProjectSection(ProjectDependencies) = postProject

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}

+	EndProjectSection

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "minizip", "minizip.vcproj", "{48CDD9DC-E09F-4135-9C0C-4FE50C3C654B}"

+	ProjectSection(ProjectDependencies) = postProject

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}

+	EndProjectSection

+EndProject

+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "miniunz", "miniunz.vcproj", "{C52F9E7B-498A-42BE-8DB4-85A15694382A}"

+	ProjectSection(ProjectDependencies) = postProject

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}

+	EndProjectSection

+EndProject

+Global

+	GlobalSection(SolutionConfigurationPlatforms) = preSolution

+		Debug|Itanium = Debug|Itanium

+		Debug|Win32 = Debug|Win32

+		Debug|x64 = Debug|x64

+		Release|Itanium = Release|Itanium

+		Release|Win32 = Release|Win32

+		Release|x64 = Release|x64

+		ReleaseWithoutAsm|Itanium = ReleaseWithoutAsm|Itanium

+		ReleaseWithoutAsm|Win32 = ReleaseWithoutAsm|Win32

+		ReleaseWithoutAsm|x64 = ReleaseWithoutAsm|x64

+	EndGlobalSection

+	GlobalSection(ProjectConfigurationPlatforms) = postSolution

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.ActiveCfg = Debug|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Itanium.Build.0 = Debug|Itanium

+		{8FD826F8-3739-44E6-8CC8-997122E53B8D}.Debug|Win32.ActiveCfg = Debug|Win32

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+	EndGlobalSection

+	GlobalSection(SolutionProperties) = preSolution

+		HideSolutionNode = FALSE

+	EndGlobalSection

+EndGlobal

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.vcproj b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.vcproj
new file mode 100644
index 000000000..c9a89471e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/contrib/vstudio/vc9/zlibvc.vcproj
@@ -0,0 +1,1156 @@
+<?xml version="1.0" encoding="Windows-1252"?>

+<VisualStudioProject

+	ProjectType="Visual C++"

+	Version="9,00"

+	Name="zlibvc"

+	ProjectGUID="{8FD826F8-3739-44E6-8CC8-997122E53B8D}"

+	RootNamespace="zlibvc"

+	TargetFrameworkVersion="131072"

+	>

+	<Platforms>

+		<Platform

+			Name="Win32"

+		/>

+		<Platform

+			Name="x64"

+		/>

+		<Platform

+			Name="Itanium"

+		/>

+	</Platforms>

+	<ToolFiles>

+	</ToolFiles>

+	<Configurations>

+		<Configuration

+			Name="Debug|Win32"

+			OutputDirectory="x86\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="_DEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="1"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"

+				ExceptionHandling="0"

+				RuntimeLibrary="1"

+				BufferSecurityCheck="false"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+				DebugInformationFormat="4"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="_DEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalOptions="/MACHINE:I386"

+				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj"

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="2"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|x64"

+			OutputDirectory="x64\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="_DEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="3"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64"

+				ExceptionHandling="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="_DEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj "

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="2"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Debug|Itanium"

+			OutputDirectory="ia64\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="ia64\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="_DEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="2"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				Optimization="0"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"

+				ExceptionHandling="0"

+				RuntimeLibrary="3"

+				BufferSecurityCheck="false"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+				DebugInformationFormat="3"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="_DEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="2"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				GenerateDebugInformation="true"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|Win32"

+			OutputDirectory="x86\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="NDEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="1"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerOutput="2"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="NDEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalOptions="/MACHINE:I386"

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="1"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				IgnoreAllDefaultLibraries="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|x64"

+			OutputDirectory="x64\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="NDEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="3"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerOutput="2"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="NDEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="1"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				IgnoreAllDefaultLibraries="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				OptimizeForWindows98="1"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="ReleaseWithoutAsm|Itanium"

+			OutputDirectory="ia64\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="ia64\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="NDEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="2"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerOutput="2"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="NDEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="1"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				IgnoreAllDefaultLibraries="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				OptimizeForWindows98="1"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Win32"

+			OutputDirectory="x86\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x86\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="NDEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="1"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="WIN32;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="0"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerOutput="2"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="NDEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalOptions="/MACHINE:I386"

+				AdditionalDependencies="..\..\masmx86\match686.obj ..\..\masmx86\inffas32.obj "

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="1"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				IgnoreAllDefaultLibraries="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				OptimizeForWindows98="1"

+				RandomizedBaseAddress="1"

+				DataExecutionPrevention="0"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|x64"

+			OutputDirectory="x64\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="x64\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="NDEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="3"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;ASMV;ASMINF;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerOutput="2"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="NDEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				AdditionalDependencies="..\..\masmx64\gvmat64.obj ..\..\masmx64\inffasx64.obj "

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="1"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				IgnoreAllDefaultLibraries="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				OptimizeForWindows98="1"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+				TargetMachine="17"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+		<Configuration

+			Name="Release|Itanium"

+			OutputDirectory="ia64\ZlibDll$(ConfigurationName)"

+			IntermediateDirectory="ia64\ZlibDll$(ConfigurationName)\Tmp"

+			ConfigurationType="2"

+			InheritedPropertySheets="UpgradeFromVC70.vsprops"

+			UseOfMFC="0"

+			ATLMinimizesCRunTimeLibraryUsage="false"

+			WholeProgramOptimization="1"

+			>

+			<Tool

+				Name="VCPreBuildEventTool"

+			/>

+			<Tool

+				Name="VCCustomBuildTool"

+			/>

+			<Tool

+				Name="VCXMLDataGeneratorTool"

+			/>

+			<Tool

+				Name="VCWebServiceProxyGeneratorTool"

+			/>

+			<Tool

+				Name="VCMIDLTool"

+				PreprocessorDefinitions="NDEBUG"

+				MkTypLibCompatible="true"

+				SuppressStartupBanner="true"

+				TargetEnvironment="2"

+				TypeLibraryName="$(OutDir)/zlibvc.tlb"

+			/>

+			<Tool

+				Name="VCCLCompilerTool"

+				InlineFunctionExpansion="1"

+				AdditionalIncludeDirectories="..\..\..;..\..\masmx86"

+				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;ZLIB_WINAPI;WIN64"

+				StringPooling="true"

+				ExceptionHandling="0"

+				RuntimeLibrary="2"

+				BufferSecurityCheck="false"

+				EnableFunctionLevelLinking="true"

+				PrecompiledHeaderFile="$(IntDir)/zlibvc.pch"

+				AssemblerOutput="2"

+				AssemblerListingLocation="$(IntDir)\"

+				ObjectFile="$(IntDir)\"

+				ProgramDataBaseFileName="$(OutDir)\"

+				BrowseInformation="0"

+				WarningLevel="3"

+				SuppressStartupBanner="true"

+			/>

+			<Tool

+				Name="VCManagedResourceCompilerTool"

+			/>

+			<Tool

+				Name="VCResourceCompilerTool"

+				PreprocessorDefinitions="NDEBUG"

+				Culture="1036"

+			/>

+			<Tool

+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				Name="VCLinkerTool"

+				OutputFile="$(OutDir)\zlibwapi.dll"

+				LinkIncremental="1"

+				SuppressStartupBanner="true"

+				GenerateManifest="false"

+				IgnoreAllDefaultLibraries="false"

+				ModuleDefinitionFile=".\zlibvc.def"

+				ProgramDatabaseFile="$(OutDir)/zlibwapi.pdb"

+				GenerateMapFile="true"

+				MapFileName="$(OutDir)/zlibwapi.map"

+				SubSystem="2"

+				OptimizeForWindows98="1"

+				ImportLibrary="$(OutDir)/zlibwapi.lib"

+				TargetMachine="5"

+			/>

+			<Tool

+				Name="VCALinkTool"

+			/>

+			<Tool

+				Name="VCManifestTool"

+			/>

+			<Tool

+				Name="VCXDCMakeTool"

+			/>

+			<Tool

+				Name="VCBscMakeTool"

+			/>

+			<Tool

+				Name="VCFxCopTool"

+			/>

+			<Tool

+				Name="VCAppVerifierTool"

+			/>

+			<Tool

+				Name="VCPostBuildEventTool"

+			/>

+		</Configuration>

+	</Configurations>

+	<References>

+	</References>

+	<Files>

+		<Filter

+			Name="Source Files"

+			Filter="cpp;c;cxx;rc;def;r;odl;hpj;bat;for;f90"

+			>

+			<File

+				RelativePath="..\..\..\adler32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\compress.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\crc32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\deflate.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzclose.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzguts.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzlib.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzread.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\gzwrite.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\infback.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\masmx64\inffas8664.c"

+				>

+				<FileConfiguration

+					Name="Debug|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Debug|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="ReleaseWithoutAsm|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="ReleaseWithoutAsm|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Win32"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Itanium"

+					ExcludedFromBuild="true"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+					/>

+				</FileConfiguration>

+			</File>

+			<File

+				RelativePath="..\..\..\inffast.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inflate.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inftrees.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\minizip\ioapi.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\minizip\iowin32.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\trees.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\uncompr.c"

+				>

+			</File>

+			<File

+				RelativePath="..\..\minizip\unzip.c"

+				>

+				<FileConfiguration

+					Name="Release|Win32"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+						AdditionalIncludeDirectories=""

+						PreprocessorDefinitions="ZLIB_INTERNAL"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|x64"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+						AdditionalIncludeDirectories=""

+						PreprocessorDefinitions="ZLIB_INTERNAL"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Itanium"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+						AdditionalIncludeDirectories=""

+						PreprocessorDefinitions="ZLIB_INTERNAL"

+					/>

+				</FileConfiguration>

+			</File>

+			<File

+				RelativePath="..\..\minizip\zip.c"

+				>

+				<FileConfiguration

+					Name="Release|Win32"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+						AdditionalIncludeDirectories=""

+						PreprocessorDefinitions="ZLIB_INTERNAL"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|x64"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+						AdditionalIncludeDirectories=""

+						PreprocessorDefinitions="ZLIB_INTERNAL"

+					/>

+				</FileConfiguration>

+				<FileConfiguration

+					Name="Release|Itanium"

+					>

+					<Tool

+						Name="VCCLCompilerTool"

+						AdditionalIncludeDirectories=""

+						PreprocessorDefinitions="ZLIB_INTERNAL"

+					/>

+				</FileConfiguration>

+			</File>

+			<File

+				RelativePath=".\zlib.rc"

+				>

+			</File>

+			<File

+				RelativePath=".\zlibvc.def"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\zutil.c"

+				>

+			</File>

+		</Filter>

+		<Filter

+			Name="Header Files"

+			Filter="h;hpp;hxx;hm;inl;fi;fd"

+			>

+			<File

+				RelativePath="..\..\..\deflate.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\infblock.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\infcodes.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inffast.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\inftrees.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\infutil.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\zconf.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\zlib.h"

+				>

+			</File>

+			<File

+				RelativePath="..\..\..\zutil.h"

+				>

+			</File>

+		</Filter>

+		<Filter

+			Name="Resource Files"

+			Filter="ico;cur;bmp;dlg;rc2;rct;bin;cnt;rtf;gif;jpg;jpeg;jpe"

+			>

+		</Filter>

+	</Files>

+	<Globals>

+	</Globals>

+</VisualStudioProject>

diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/crc32.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/crc32.c
new file mode 100644
index 000000000..9580440c0
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/crc32.c
@@ -0,0 +1,442 @@
+/* crc32.c -- compute the CRC-32 of a data stream
+ * Copyright (C) 1995-2006, 2010, 2011, 2012, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ *
+ * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
+ * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing
+ * tables for updating the shift register in one step with three exclusive-ors
+ * instead of four steps with four exclusive-ors.  This results in about a
+ * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
+ */
+
+/* @(#) $Id$ */
+
+/*
+  Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore
+  protection on the static variables used to control the first-use generation
+  of the crc tables.  Therefore, if you #define DYNAMIC_CRC_TABLE, you should
+  first call get_crc_table() to initialize the tables before allowing more than
+  one thread to use crc32().
+
+  DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h.
+ */
+
+#ifdef MAKECRCH
+#  include <stdio.h>
+#  ifndef DYNAMIC_CRC_TABLE
+#    define DYNAMIC_CRC_TABLE
+#  endif /* !DYNAMIC_CRC_TABLE */
+#endif /* MAKECRCH */
+
+#include "zutil.h"      /* for STDC and FAR definitions */
+
+/* Definitions for doing the crc four data bytes at a time. */
+#if !defined(NOBYFOUR) && defined(Z_U4)
+#  define BYFOUR
+#endif
+#ifdef BYFOUR
+   local unsigned long crc32_little OF((unsigned long,
+                        const unsigned char FAR *, z_size_t));
+   local unsigned long crc32_big OF((unsigned long,
+                        const unsigned char FAR *, z_size_t));
+#  define TBLS 8
+#else
+#  define TBLS 1
+#endif /* BYFOUR */
+
+/* Local functions for crc concatenation */
+local unsigned long gf2_matrix_times OF((unsigned long *mat,
+                                         unsigned long vec));
+local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat));
+local uLong crc32_combine_ OF((uLong crc1, uLong crc2, z_off64_t len2));
+
+
+#ifdef DYNAMIC_CRC_TABLE
+
+local volatile int crc_table_empty = 1;
+local z_crc_t FAR crc_table[TBLS][256];
+local void make_crc_table OF((void));
+#ifdef MAKECRCH
+   local void write_table OF((FILE *, const z_crc_t FAR *));
+#endif /* MAKECRCH */
+/*
+  Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
+  x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
+
+  Polynomials over GF(2) are represented in binary, one bit per coefficient,
+  with the lowest powers in the most significant bit.  Then adding polynomials
+  is just exclusive-or, and multiplying a polynomial by x is a right shift by
+  one.  If we call the above polynomial p, and represent a byte as the
+  polynomial q, also with the lowest power in the most significant bit (so the
+  byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,
+  where a mod b means the remainder after dividing a by b.
+
+  This calculation is done using the shift-register method of multiplying and
+  taking the remainder.  The register is initialized to zero, and for each
+  incoming bit, x^32 is added mod p to the register if the bit is a one (where
+  x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by
+  x (which is shifting right by one and adding x^32 mod p if the bit shifted
+  out is a one).  We start with the highest power (least significant bit) of
+  q and repeat for all eight bits of q.
+
+  The first table is simply the CRC of all possible eight bit values.  This is
+  all the information needed to generate CRCs on data a byte at a time for all
+  combinations of CRC register values and incoming bytes.  The remaining tables
+  allow for word-at-a-time CRC calculation for both big-endian and little-
+  endian machines, where a word is four bytes.
+*/
+local void make_crc_table()
+{
+    z_crc_t c;
+    int n, k;
+    z_crc_t poly;                       /* polynomial exclusive-or pattern */
+    /* terms of polynomial defining this crc (except x^32): */
+    static volatile int first = 1;      /* flag to limit concurrent making */
+    static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
+
+    /* See if another task is already doing this (not thread-safe, but better
+       than nothing -- significantly reduces duration of vulnerability in
+       case the advice about DYNAMIC_CRC_TABLE is ignored) */
+    if (first) {
+        first = 0;
+
+        /* make exclusive-or pattern from polynomial (0xedb88320UL) */
+        poly = 0;
+        for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++)
+            poly |= (z_crc_t)1 << (31 - p[n]);
+
+        /* generate a crc for every 8-bit value */
+        for (n = 0; n < 256; n++) {
+            c = (z_crc_t)n;
+            for (k = 0; k < 8; k++)
+                c = c & 1 ? poly ^ (c >> 1) : c >> 1;
+            crc_table[0][n] = c;
+        }
+
+#ifdef BYFOUR
+        /* generate crc for each value followed by one, two, and three zeros,
+           and then the byte reversal of those as well as the first table */
+        for (n = 0; n < 256; n++) {
+            c = crc_table[0][n];
+            crc_table[4][n] = ZSWAP32(c);
+            for (k = 1; k < 4; k++) {
+                c = crc_table[0][c & 0xff] ^ (c >> 8);
+                crc_table[k][n] = c;
+                crc_table[k + 4][n] = ZSWAP32(c);
+            }
+        }
+#endif /* BYFOUR */
+
+        crc_table_empty = 0;
+    }
+    else {      /* not first */
+        /* wait for the other guy to finish (not efficient, but rare) */
+        while (crc_table_empty)
+            ;
+    }
+
+#ifdef MAKECRCH
+    /* write out CRC tables to crc32.h */
+    {
+        FILE *out;
+
+        out = fopen("crc32.h", "w");
+        if (out == NULL) return;
+        fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n");
+        fprintf(out, " * Generated automatically by crc32.c\n */\n\n");
+        fprintf(out, "local const z_crc_t FAR ");
+        fprintf(out, "crc_table[TBLS][256] =\n{\n  {\n");
+        write_table(out, crc_table[0]);
+#  ifdef BYFOUR
+        fprintf(out, "#ifdef BYFOUR\n");
+        for (k = 1; k < 8; k++) {
+            fprintf(out, "  },\n  {\n");
+            write_table(out, crc_table[k]);
+        }
+        fprintf(out, "#endif\n");
+#  endif /* BYFOUR */
+        fprintf(out, "  }\n};\n");
+        fclose(out);
+    }
+#endif /* MAKECRCH */
+}
+
+#ifdef MAKECRCH
+local void write_table(out, table)
+    FILE *out;
+    const z_crc_t FAR *table;
+{
+    int n;
+
+    for (n = 0; n < 256; n++)
+        fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : "    ",
+                (unsigned long)(table[n]),
+                n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", "));
+}
+#endif /* MAKECRCH */
+
+#else /* !DYNAMIC_CRC_TABLE */
+/* ========================================================================
+ * Tables of CRC-32s of all single-byte values, made by make_crc_table().
+ */
+#include "crc32.h"
+#endif /* DYNAMIC_CRC_TABLE */
+
+/* =========================================================================
+ * This function can be used by asm versions of crc32()
+ */
+const z_crc_t FAR * ZEXPORT get_crc_table()
+{
+#ifdef DYNAMIC_CRC_TABLE
+    if (crc_table_empty)
+        make_crc_table();
+#endif /* DYNAMIC_CRC_TABLE */
+    return (const z_crc_t FAR *)crc_table;
+}
+
+/* ========================================================================= */
+#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8)
+#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
+
+/* ========================================================================= */
+unsigned long ZEXPORT crc32_z(crc, buf, len)
+    unsigned long crc;
+    const unsigned char FAR *buf;
+    z_size_t len;
+{
+    if (buf == Z_NULL) return 0UL;
+
+#ifdef DYNAMIC_CRC_TABLE
+    if (crc_table_empty)
+        make_crc_table();
+#endif /* DYNAMIC_CRC_TABLE */
+
+#ifdef BYFOUR
+    if (sizeof(void *) == sizeof(ptrdiff_t)) {
+        z_crc_t endian;
+
+        endian = 1;
+        if (*((unsigned char *)(&endian)))
+            return crc32_little(crc, buf, len);
+        else
+            return crc32_big(crc, buf, len);
+    }
+#endif /* BYFOUR */
+    crc = crc ^ 0xffffffffUL;
+    while (len >= 8) {
+        DO8;
+        len -= 8;
+    }
+    if (len) do {
+        DO1;
+    } while (--len);
+    return crc ^ 0xffffffffUL;
+}
+
+/* ========================================================================= */
+unsigned long ZEXPORT crc32(crc, buf, len)
+    unsigned long crc;
+    const unsigned char FAR *buf;
+    uInt len;
+{
+    return crc32_z(crc, buf, len);
+}
+
+#ifdef BYFOUR
+
+/*
+   This BYFOUR code accesses the passed unsigned char * buffer with a 32-bit
+   integer pointer type. This violates the strict aliasing rule, where a
+   compiler can assume, for optimization purposes, that two pointers to
+   fundamentally different types won't ever point to the same memory. This can
+   manifest as a problem only if one of the pointers is written to. This code
+   only reads from those pointers. So long as this code remains isolated in
+   this compilation unit, there won't be a problem. For this reason, this code
+   should not be copied and pasted into a compilation unit in which other code
+   writes to the buffer that is passed to these routines.
+ */
+
+/* ========================================================================= */
+#define DOLIT4 c ^= *buf4++; \
+        c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \
+            crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24]
+#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4
+
+/* ========================================================================= */
+local unsigned long crc32_little(crc, buf, len)
+    unsigned long crc;
+    const unsigned char FAR *buf;
+    z_size_t len;
+{
+    register z_crc_t c;
+    register const z_crc_t FAR *buf4;
+
+    c = (z_crc_t)crc;
+    c = ~c;
+    while (len && ((ptrdiff_t)buf & 3)) {
+        c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
+        len--;
+    }
+
+    buf4 = (const z_crc_t FAR *)(const void FAR *)buf;
+    while (len >= 32) {
+        DOLIT32;
+        len -= 32;
+    }
+    while (len >= 4) {
+        DOLIT4;
+        len -= 4;
+    }
+    buf = (const unsigned char FAR *)buf4;
+
+    if (len) do {
+        c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8);
+    } while (--len);
+    c = ~c;
+    return (unsigned long)c;
+}
+
+/* ========================================================================= */
+#define DOBIG4 c ^= *buf4++; \
+        c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \
+            crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24]
+#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4
+
+/* ========================================================================= */
+local unsigned long crc32_big(crc, buf, len)
+    unsigned long crc;
+    const unsigned char FAR *buf;
+    z_size_t len;
+{
+    register z_crc_t c;
+    register const z_crc_t FAR *buf4;
+
+    c = ZSWAP32((z_crc_t)crc);
+    c = ~c;
+    while (len && ((ptrdiff_t)buf & 3)) {
+        c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
+        len--;
+    }
+
+    buf4 = (const z_crc_t FAR *)(const void FAR *)buf;
+    while (len >= 32) {
+        DOBIG32;
+        len -= 32;
+    }
+    while (len >= 4) {
+        DOBIG4;
+        len -= 4;
+    }
+    buf = (const unsigned char FAR *)buf4;
+
+    if (len) do {
+        c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8);
+    } while (--len);
+    c = ~c;
+    return (unsigned long)(ZSWAP32(c));
+}
+
+#endif /* BYFOUR */
+
+#define GF2_DIM 32      /* dimension of GF(2) vectors (length of CRC) */
+
+/* ========================================================================= */
+local unsigned long gf2_matrix_times(mat, vec)
+    unsigned long *mat;
+    unsigned long vec;
+{
+    unsigned long sum;
+
+    sum = 0;
+    while (vec) {
+        if (vec & 1)
+            sum ^= *mat;
+        vec >>= 1;
+        mat++;
+    }
+    return sum;
+}
+
+/* ========================================================================= */
+local void gf2_matrix_square(square, mat)
+    unsigned long *square;
+    unsigned long *mat;
+{
+    int n;
+
+    for (n = 0; n < GF2_DIM; n++)
+        square[n] = gf2_matrix_times(mat, mat[n]);
+}
+
+/* ========================================================================= */
+local uLong crc32_combine_(crc1, crc2, len2)
+    uLong crc1;
+    uLong crc2;
+    z_off64_t len2;
+{
+    int n;
+    unsigned long row;
+    unsigned long even[GF2_DIM];    /* even-power-of-two zeros operator */
+    unsigned long odd[GF2_DIM];     /* odd-power-of-two zeros operator */
+
+    /* degenerate case (also disallow negative lengths) */
+    if (len2 <= 0)
+        return crc1;
+
+    /* put operator for one zero bit in odd */
+    odd[0] = 0xedb88320UL;          /* CRC-32 polynomial */
+    row = 1;
+    for (n = 1; n < GF2_DIM; n++) {
+        odd[n] = row;
+        row <<= 1;
+    }
+
+    /* put operator for two zero bits in even */
+    gf2_matrix_square(even, odd);
+
+    /* put operator for four zero bits in odd */
+    gf2_matrix_square(odd, even);
+
+    /* apply len2 zeros to crc1 (first square will put the operator for one
+       zero byte, eight zero bits, in even) */
+    do {
+        /* apply zeros operator for this bit of len2 */
+        gf2_matrix_square(even, odd);
+        if (len2 & 1)
+            crc1 = gf2_matrix_times(even, crc1);
+        len2 >>= 1;
+
+        /* if no more bits set, then done */
+        if (len2 == 0)
+            break;
+
+        /* another iteration of the loop with odd and even swapped */
+        gf2_matrix_square(odd, even);
+        if (len2 & 1)
+            crc1 = gf2_matrix_times(odd, crc1);
+        len2 >>= 1;
+
+        /* if no more bits set, then done */
+    } while (len2 != 0);
+
+    /* return combined crc */
+    crc1 ^= crc2;
+    return crc1;
+}
+
+/* ========================================================================= */
+uLong ZEXPORT crc32_combine(crc1, crc2, len2)
+    uLong crc1;
+    uLong crc2;
+    z_off_t len2;
+{
+    return crc32_combine_(crc1, crc2, len2);
+}
+
+uLong ZEXPORT crc32_combine64(crc1, crc2, len2)
+    uLong crc1;
+    uLong crc2;
+    z_off64_t len2;
+{
+    return crc32_combine_(crc1, crc2, len2);
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/crc32.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/crc32.h
new file mode 100644
index 000000000..9e0c77810
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/crc32.h
@@ -0,0 +1,441 @@
+/* crc32.h -- tables for rapid CRC calculation
+ * Generated automatically by crc32.c
+ */
+
+local const z_crc_t FAR crc_table[TBLS][256] =
+{
+  {
+    0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
+    0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
+    0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
+    0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
+    0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
+    0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
+    0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
+    0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
+    0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
+    0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
+    0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
+    0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
+    0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
+    0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
+    0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
+    0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
+    0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
+    0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
+    0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
+    0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
+    0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
+    0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
+    0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
+    0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
+    0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
+    0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
+    0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
+    0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
+    0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
+    0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
+    0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
+    0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
+    0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
+    0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
+    0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
+    0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
+    0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
+    0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
+    0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
+    0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
+    0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
+    0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
+    0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
+    0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
+    0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
+    0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
+    0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
+    0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
+    0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
+    0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
+    0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
+    0x2d02ef8dUL
+#ifdef BYFOUR
+  },
+  {
+    0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL,
+    0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL,
+    0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL,
+    0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL,
+    0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL,
+    0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL,
+    0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL,
+    0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL,
+    0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL,
+    0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL,
+    0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL,
+    0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL,
+    0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL,
+    0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL,
+    0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL,
+    0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL,
+    0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL,
+    0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL,
+    0x4054b5deUL, 0x594f849fUL, 0x160e1258UL, 0x0f152319UL, 0x243870daUL,
+    0x3d23419bUL, 0x65fd6ba7UL, 0x7ce65ae6UL, 0x57cb0925UL, 0x4ed03864UL,
+    0x0191aea3UL, 0x188a9fe2UL, 0x33a7cc21UL, 0x2abcfd60UL, 0xad24e1afUL,
+    0xb43fd0eeUL, 0x9f12832dUL, 0x8609b26cUL, 0xc94824abUL, 0xd05315eaUL,
+    0xfb7e4629UL, 0xe2657768UL, 0x2f3f79f6UL, 0x362448b7UL, 0x1d091b74UL,
+    0x04122a35UL, 0x4b53bcf2UL, 0x52488db3UL, 0x7965de70UL, 0x607eef31UL,
+    0xe7e6f3feUL, 0xfefdc2bfUL, 0xd5d0917cUL, 0xcccba03dUL, 0x838a36faUL,
+    0x9a9107bbUL, 0xb1bc5478UL, 0xa8a76539UL, 0x3b83984bUL, 0x2298a90aUL,
+    0x09b5fac9UL, 0x10aecb88UL, 0x5fef5d4fUL, 0x46f46c0eUL, 0x6dd93fcdUL,
+    0x74c20e8cUL, 0xf35a1243UL, 0xea412302UL, 0xc16c70c1UL, 0xd8774180UL,
+    0x9736d747UL, 0x8e2de606UL, 0xa500b5c5UL, 0xbc1b8484UL, 0x71418a1aUL,
+    0x685abb5bUL, 0x4377e898UL, 0x5a6cd9d9UL, 0x152d4f1eUL, 0x0c367e5fUL,
+    0x271b2d9cUL, 0x3e001cddUL, 0xb9980012UL, 0xa0833153UL, 0x8bae6290UL,
+    0x92b553d1UL, 0xddf4c516UL, 0xc4eff457UL, 0xefc2a794UL, 0xf6d996d5UL,
+    0xae07bce9UL, 0xb71c8da8UL, 0x9c31de6bUL, 0x852aef2aUL, 0xca6b79edUL,
+    0xd37048acUL, 0xf85d1b6fUL, 0xe1462a2eUL, 0x66de36e1UL, 0x7fc507a0UL,
+    0x54e85463UL, 0x4df36522UL, 0x02b2f3e5UL, 0x1ba9c2a4UL, 0x30849167UL,
+    0x299fa026UL, 0xe4c5aeb8UL, 0xfdde9ff9UL, 0xd6f3cc3aUL, 0xcfe8fd7bUL,
+    0x80a96bbcUL, 0x99b25afdUL, 0xb29f093eUL, 0xab84387fUL, 0x2c1c24b0UL,
+    0x350715f1UL, 0x1e2a4632UL, 0x07317773UL, 0x4870e1b4UL, 0x516bd0f5UL,
+    0x7a468336UL, 0x635db277UL, 0xcbfad74eUL, 0xd2e1e60fUL, 0xf9ccb5ccUL,
+    0xe0d7848dUL, 0xaf96124aUL, 0xb68d230bUL, 0x9da070c8UL, 0x84bb4189UL,
+    0x03235d46UL, 0x1a386c07UL, 0x31153fc4UL, 0x280e0e85UL, 0x674f9842UL,
+    0x7e54a903UL, 0x5579fac0UL, 0x4c62cb81UL, 0x8138c51fUL, 0x9823f45eUL,
+    0xb30ea79dUL, 0xaa1596dcUL, 0xe554001bUL, 0xfc4f315aUL, 0xd7626299UL,
+    0xce7953d8UL, 0x49e14f17UL, 0x50fa7e56UL, 0x7bd72d95UL, 0x62cc1cd4UL,
+    0x2d8d8a13UL, 0x3496bb52UL, 0x1fbbe891UL, 0x06a0d9d0UL, 0x5e7ef3ecUL,
+    0x4765c2adUL, 0x6c48916eUL, 0x7553a02fUL, 0x3a1236e8UL, 0x230907a9UL,
+    0x0824546aUL, 0x113f652bUL, 0x96a779e4UL, 0x8fbc48a5UL, 0xa4911b66UL,
+    0xbd8a2a27UL, 0xf2cbbce0UL, 0xebd08da1UL, 0xc0fdde62UL, 0xd9e6ef23UL,
+    0x14bce1bdUL, 0x0da7d0fcUL, 0x268a833fUL, 0x3f91b27eUL, 0x70d024b9UL,
+    0x69cb15f8UL, 0x42e6463bUL, 0x5bfd777aUL, 0xdc656bb5UL, 0xc57e5af4UL,
+    0xee530937UL, 0xf7483876UL, 0xb809aeb1UL, 0xa1129ff0UL, 0x8a3fcc33UL,
+    0x9324fd72UL
+  },
+  {
+    0x00000000UL, 0x01c26a37UL, 0x0384d46eUL, 0x0246be59UL, 0x0709a8dcUL,
+    0x06cbc2ebUL, 0x048d7cb2UL, 0x054f1685UL, 0x0e1351b8UL, 0x0fd13b8fUL,
+    0x0d9785d6UL, 0x0c55efe1UL, 0x091af964UL, 0x08d89353UL, 0x0a9e2d0aUL,
+    0x0b5c473dUL, 0x1c26a370UL, 0x1de4c947UL, 0x1fa2771eUL, 0x1e601d29UL,
+    0x1b2f0bacUL, 0x1aed619bUL, 0x18abdfc2UL, 0x1969b5f5UL, 0x1235f2c8UL,
+    0x13f798ffUL, 0x11b126a6UL, 0x10734c91UL, 0x153c5a14UL, 0x14fe3023UL,
+    0x16b88e7aUL, 0x177ae44dUL, 0x384d46e0UL, 0x398f2cd7UL, 0x3bc9928eUL,
+    0x3a0bf8b9UL, 0x3f44ee3cUL, 0x3e86840bUL, 0x3cc03a52UL, 0x3d025065UL,
+    0x365e1758UL, 0x379c7d6fUL, 0x35dac336UL, 0x3418a901UL, 0x3157bf84UL,
+    0x3095d5b3UL, 0x32d36beaUL, 0x331101ddUL, 0x246be590UL, 0x25a98fa7UL,
+    0x27ef31feUL, 0x262d5bc9UL, 0x23624d4cUL, 0x22a0277bUL, 0x20e69922UL,
+    0x2124f315UL, 0x2a78b428UL, 0x2bbade1fUL, 0x29fc6046UL, 0x283e0a71UL,
+    0x2d711cf4UL, 0x2cb376c3UL, 0x2ef5c89aUL, 0x2f37a2adUL, 0x709a8dc0UL,
+    0x7158e7f7UL, 0x731e59aeUL, 0x72dc3399UL, 0x7793251cUL, 0x76514f2bUL,
+    0x7417f172UL, 0x75d59b45UL, 0x7e89dc78UL, 0x7f4bb64fUL, 0x7d0d0816UL,
+    0x7ccf6221UL, 0x798074a4UL, 0x78421e93UL, 0x7a04a0caUL, 0x7bc6cafdUL,
+    0x6cbc2eb0UL, 0x6d7e4487UL, 0x6f38fadeUL, 0x6efa90e9UL, 0x6bb5866cUL,
+    0x6a77ec5bUL, 0x68315202UL, 0x69f33835UL, 0x62af7f08UL, 0x636d153fUL,
+    0x612bab66UL, 0x60e9c151UL, 0x65a6d7d4UL, 0x6464bde3UL, 0x662203baUL,
+    0x67e0698dUL, 0x48d7cb20UL, 0x4915a117UL, 0x4b531f4eUL, 0x4a917579UL,
+    0x4fde63fcUL, 0x4e1c09cbUL, 0x4c5ab792UL, 0x4d98dda5UL, 0x46c49a98UL,
+    0x4706f0afUL, 0x45404ef6UL, 0x448224c1UL, 0x41cd3244UL, 0x400f5873UL,
+    0x4249e62aUL, 0x438b8c1dUL, 0x54f16850UL, 0x55330267UL, 0x5775bc3eUL,
+    0x56b7d609UL, 0x53f8c08cUL, 0x523aaabbUL, 0x507c14e2UL, 0x51be7ed5UL,
+    0x5ae239e8UL, 0x5b2053dfUL, 0x5966ed86UL, 0x58a487b1UL, 0x5deb9134UL,
+    0x5c29fb03UL, 0x5e6f455aUL, 0x5fad2f6dUL, 0xe1351b80UL, 0xe0f771b7UL,
+    0xe2b1cfeeUL, 0xe373a5d9UL, 0xe63cb35cUL, 0xe7fed96bUL, 0xe5b86732UL,
+    0xe47a0d05UL, 0xef264a38UL, 0xeee4200fUL, 0xeca29e56UL, 0xed60f461UL,
+    0xe82fe2e4UL, 0xe9ed88d3UL, 0xebab368aUL, 0xea695cbdUL, 0xfd13b8f0UL,
+    0xfcd1d2c7UL, 0xfe976c9eUL, 0xff5506a9UL, 0xfa1a102cUL, 0xfbd87a1bUL,
+    0xf99ec442UL, 0xf85cae75UL, 0xf300e948UL, 0xf2c2837fUL, 0xf0843d26UL,
+    0xf1465711UL, 0xf4094194UL, 0xf5cb2ba3UL, 0xf78d95faUL, 0xf64fffcdUL,
+    0xd9785d60UL, 0xd8ba3757UL, 0xdafc890eUL, 0xdb3ee339UL, 0xde71f5bcUL,
+    0xdfb39f8bUL, 0xddf521d2UL, 0xdc374be5UL, 0xd76b0cd8UL, 0xd6a966efUL,
+    0xd4efd8b6UL, 0xd52db281UL, 0xd062a404UL, 0xd1a0ce33UL, 0xd3e6706aUL,
+    0xd2241a5dUL, 0xc55efe10UL, 0xc49c9427UL, 0xc6da2a7eUL, 0xc7184049UL,
+    0xc25756ccUL, 0xc3953cfbUL, 0xc1d382a2UL, 0xc011e895UL, 0xcb4dafa8UL,
+    0xca8fc59fUL, 0xc8c97bc6UL, 0xc90b11f1UL, 0xcc440774UL, 0xcd866d43UL,
+    0xcfc0d31aUL, 0xce02b92dUL, 0x91af9640UL, 0x906dfc77UL, 0x922b422eUL,
+    0x93e92819UL, 0x96a63e9cUL, 0x976454abUL, 0x9522eaf2UL, 0x94e080c5UL,
+    0x9fbcc7f8UL, 0x9e7eadcfUL, 0x9c381396UL, 0x9dfa79a1UL, 0x98b56f24UL,
+    0x99770513UL, 0x9b31bb4aUL, 0x9af3d17dUL, 0x8d893530UL, 0x8c4b5f07UL,
+    0x8e0de15eUL, 0x8fcf8b69UL, 0x8a809decUL, 0x8b42f7dbUL, 0x89044982UL,
+    0x88c623b5UL, 0x839a6488UL, 0x82580ebfUL, 0x801eb0e6UL, 0x81dcdad1UL,
+    0x8493cc54UL, 0x8551a663UL, 0x8717183aUL, 0x86d5720dUL, 0xa9e2d0a0UL,
+    0xa820ba97UL, 0xaa6604ceUL, 0xaba46ef9UL, 0xaeeb787cUL, 0xaf29124bUL,
+    0xad6fac12UL, 0xacadc625UL, 0xa7f18118UL, 0xa633eb2fUL, 0xa4755576UL,
+    0xa5b73f41UL, 0xa0f829c4UL, 0xa13a43f3UL, 0xa37cfdaaUL, 0xa2be979dUL,
+    0xb5c473d0UL, 0xb40619e7UL, 0xb640a7beUL, 0xb782cd89UL, 0xb2cddb0cUL,
+    0xb30fb13bUL, 0xb1490f62UL, 0xb08b6555UL, 0xbbd72268UL, 0xba15485fUL,
+    0xb853f606UL, 0xb9919c31UL, 0xbcde8ab4UL, 0xbd1ce083UL, 0xbf5a5edaUL,
+    0xbe9834edUL
+  },
+  {
+    0x00000000UL, 0xb8bc6765UL, 0xaa09c88bUL, 0x12b5afeeUL, 0x8f629757UL,
+    0x37def032UL, 0x256b5fdcUL, 0x9dd738b9UL, 0xc5b428efUL, 0x7d084f8aUL,
+    0x6fbde064UL, 0xd7018701UL, 0x4ad6bfb8UL, 0xf26ad8ddUL, 0xe0df7733UL,
+    0x58631056UL, 0x5019579fUL, 0xe8a530faUL, 0xfa109f14UL, 0x42acf871UL,
+    0xdf7bc0c8UL, 0x67c7a7adUL, 0x75720843UL, 0xcdce6f26UL, 0x95ad7f70UL,
+    0x2d111815UL, 0x3fa4b7fbUL, 0x8718d09eUL, 0x1acfe827UL, 0xa2738f42UL,
+    0xb0c620acUL, 0x087a47c9UL, 0xa032af3eUL, 0x188ec85bUL, 0x0a3b67b5UL,
+    0xb28700d0UL, 0x2f503869UL, 0x97ec5f0cUL, 0x8559f0e2UL, 0x3de59787UL,
+    0x658687d1UL, 0xdd3ae0b4UL, 0xcf8f4f5aUL, 0x7733283fUL, 0xeae41086UL,
+    0x525877e3UL, 0x40edd80dUL, 0xf851bf68UL, 0xf02bf8a1UL, 0x48979fc4UL,
+    0x5a22302aUL, 0xe29e574fUL, 0x7f496ff6UL, 0xc7f50893UL, 0xd540a77dUL,
+    0x6dfcc018UL, 0x359fd04eUL, 0x8d23b72bUL, 0x9f9618c5UL, 0x272a7fa0UL,
+    0xbafd4719UL, 0x0241207cUL, 0x10f48f92UL, 0xa848e8f7UL, 0x9b14583dUL,
+    0x23a83f58UL, 0x311d90b6UL, 0x89a1f7d3UL, 0x1476cf6aUL, 0xaccaa80fUL,
+    0xbe7f07e1UL, 0x06c36084UL, 0x5ea070d2UL, 0xe61c17b7UL, 0xf4a9b859UL,
+    0x4c15df3cUL, 0xd1c2e785UL, 0x697e80e0UL, 0x7bcb2f0eUL, 0xc377486bUL,
+    0xcb0d0fa2UL, 0x73b168c7UL, 0x6104c729UL, 0xd9b8a04cUL, 0x446f98f5UL,
+    0xfcd3ff90UL, 0xee66507eUL, 0x56da371bUL, 0x0eb9274dUL, 0xb6054028UL,
+    0xa4b0efc6UL, 0x1c0c88a3UL, 0x81dbb01aUL, 0x3967d77fUL, 0x2bd27891UL,
+    0x936e1ff4UL, 0x3b26f703UL, 0x839a9066UL, 0x912f3f88UL, 0x299358edUL,
+    0xb4446054UL, 0x0cf80731UL, 0x1e4da8dfUL, 0xa6f1cfbaUL, 0xfe92dfecUL,
+    0x462eb889UL, 0x549b1767UL, 0xec277002UL, 0x71f048bbUL, 0xc94c2fdeUL,
+    0xdbf98030UL, 0x6345e755UL, 0x6b3fa09cUL, 0xd383c7f9UL, 0xc1366817UL,
+    0x798a0f72UL, 0xe45d37cbUL, 0x5ce150aeUL, 0x4e54ff40UL, 0xf6e89825UL,
+    0xae8b8873UL, 0x1637ef16UL, 0x048240f8UL, 0xbc3e279dUL, 0x21e91f24UL,
+    0x99557841UL, 0x8be0d7afUL, 0x335cb0caUL, 0xed59b63bUL, 0x55e5d15eUL,
+    0x47507eb0UL, 0xffec19d5UL, 0x623b216cUL, 0xda874609UL, 0xc832e9e7UL,
+    0x708e8e82UL, 0x28ed9ed4UL, 0x9051f9b1UL, 0x82e4565fUL, 0x3a58313aUL,
+    0xa78f0983UL, 0x1f336ee6UL, 0x0d86c108UL, 0xb53aa66dUL, 0xbd40e1a4UL,
+    0x05fc86c1UL, 0x1749292fUL, 0xaff54e4aUL, 0x322276f3UL, 0x8a9e1196UL,
+    0x982bbe78UL, 0x2097d91dUL, 0x78f4c94bUL, 0xc048ae2eUL, 0xd2fd01c0UL,
+    0x6a4166a5UL, 0xf7965e1cUL, 0x4f2a3979UL, 0x5d9f9697UL, 0xe523f1f2UL,
+    0x4d6b1905UL, 0xf5d77e60UL, 0xe762d18eUL, 0x5fdeb6ebUL, 0xc2098e52UL,
+    0x7ab5e937UL, 0x680046d9UL, 0xd0bc21bcUL, 0x88df31eaUL, 0x3063568fUL,
+    0x22d6f961UL, 0x9a6a9e04UL, 0x07bda6bdUL, 0xbf01c1d8UL, 0xadb46e36UL,
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+    0xe9dbf6c3UL, 0x516791a6UL, 0xccb0a91fUL, 0x740cce7aUL, 0x66b96194UL,
+    0xde0506f1UL
+  },
+  {
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+    0x021b685dUL, 0x942b6f2aUL, 0x37be0bb4UL, 0xa18e0cc3UL, 0x1bdf055aUL,
+    0x8def022dUL
+  },
+  {
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+    0x370953eeUL, 0x763848f7UL, 0xb1ae09b8UL, 0xf09f12a1UL, 0x33cc3f8aUL,
+    0x72fd2493UL
+  },
+  {
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+    0xd073c4b5UL, 0xe71906b4UL, 0xbea740b6UL, 0x89cd82b7UL, 0x0cdbcdb2UL,
+    0x3bb10fb3UL, 0x620f49b1UL, 0x55658bb0UL, 0x6822d7bbUL, 0x5f4815baUL,
+    0x06f653b8UL, 0x319c91b9UL, 0xb48adebcUL, 0x83e01cbdUL, 0xda5e5abfUL,
+    0xed3498beUL
+  },
+  {
+    0x00000000UL, 0x6567bcb8UL, 0x8bc809aaUL, 0xeeafb512UL, 0x5797628fUL,
+    0x32f0de37UL, 0xdc5f6b25UL, 0xb938d79dUL, 0xef28b4c5UL, 0x8a4f087dUL,
+    0x64e0bd6fUL, 0x018701d7UL, 0xb8bfd64aUL, 0xddd86af2UL, 0x3377dfe0UL,
+    0x56106358UL, 0x9f571950UL, 0xfa30a5e8UL, 0x149f10faUL, 0x71f8ac42UL,
+    0xc8c07bdfUL, 0xada7c767UL, 0x43087275UL, 0x266fcecdUL, 0x707fad95UL,
+    0x1518112dUL, 0xfbb7a43fUL, 0x9ed01887UL, 0x27e8cf1aUL, 0x428f73a2UL,
+    0xac20c6b0UL, 0xc9477a08UL, 0x3eaf32a0UL, 0x5bc88e18UL, 0xb5673b0aUL,
+    0xd00087b2UL, 0x6938502fUL, 0x0c5fec97UL, 0xe2f05985UL, 0x8797e53dUL,
+    0xd1878665UL, 0xb4e03addUL, 0x5a4f8fcfUL, 0x3f283377UL, 0x8610e4eaUL,
+    0xe3775852UL, 0x0dd8ed40UL, 0x68bf51f8UL, 0xa1f82bf0UL, 0xc49f9748UL,
+    0x2a30225aUL, 0x4f579ee2UL, 0xf66f497fUL, 0x9308f5c7UL, 0x7da740d5UL,
+    0x18c0fc6dUL, 0x4ed09f35UL, 0x2bb7238dUL, 0xc518969fUL, 0xa07f2a27UL,
+    0x1947fdbaUL, 0x7c204102UL, 0x928ff410UL, 0xf7e848a8UL, 0x3d58149bUL,
+    0x583fa823UL, 0xb6901d31UL, 0xd3f7a189UL, 0x6acf7614UL, 0x0fa8caacUL,
+    0xe1077fbeUL, 0x8460c306UL, 0xd270a05eUL, 0xb7171ce6UL, 0x59b8a9f4UL,
+    0x3cdf154cUL, 0x85e7c2d1UL, 0xe0807e69UL, 0x0e2fcb7bUL, 0x6b4877c3UL,
+    0xa20f0dcbUL, 0xc768b173UL, 0x29c70461UL, 0x4ca0b8d9UL, 0xf5986f44UL,
+    0x90ffd3fcUL, 0x7e5066eeUL, 0x1b37da56UL, 0x4d27b90eUL, 0x284005b6UL,
+    0xc6efb0a4UL, 0xa3880c1cUL, 0x1ab0db81UL, 0x7fd76739UL, 0x9178d22bUL,
+    0xf41f6e93UL, 0x03f7263bUL, 0x66909a83UL, 0x883f2f91UL, 0xed589329UL,
+    0x546044b4UL, 0x3107f80cUL, 0xdfa84d1eUL, 0xbacff1a6UL, 0xecdf92feUL,
+    0x89b82e46UL, 0x67179b54UL, 0x027027ecUL, 0xbb48f071UL, 0xde2f4cc9UL,
+    0x3080f9dbUL, 0x55e74563UL, 0x9ca03f6bUL, 0xf9c783d3UL, 0x176836c1UL,
+    0x720f8a79UL, 0xcb375de4UL, 0xae50e15cUL, 0x40ff544eUL, 0x2598e8f6UL,
+    0x73888baeUL, 0x16ef3716UL, 0xf8408204UL, 0x9d273ebcUL, 0x241fe921UL,
+    0x41785599UL, 0xafd7e08bUL, 0xcab05c33UL, 0x3bb659edUL, 0x5ed1e555UL,
+    0xb07e5047UL, 0xd519ecffUL, 0x6c213b62UL, 0x094687daUL, 0xe7e932c8UL,
+    0x828e8e70UL, 0xd49eed28UL, 0xb1f95190UL, 0x5f56e482UL, 0x3a31583aUL,
+    0x83098fa7UL, 0xe66e331fUL, 0x08c1860dUL, 0x6da63ab5UL, 0xa4e140bdUL,
+    0xc186fc05UL, 0x2f294917UL, 0x4a4ef5afUL, 0xf3762232UL, 0x96119e8aUL,
+    0x78be2b98UL, 0x1dd99720UL, 0x4bc9f478UL, 0x2eae48c0UL, 0xc001fdd2UL,
+    0xa566416aUL, 0x1c5e96f7UL, 0x79392a4fUL, 0x97969f5dUL, 0xf2f123e5UL,
+    0x05196b4dUL, 0x607ed7f5UL, 0x8ed162e7UL, 0xebb6de5fUL, 0x528e09c2UL,
+    0x37e9b57aUL, 0xd9460068UL, 0xbc21bcd0UL, 0xea31df88UL, 0x8f566330UL,
+    0x61f9d622UL, 0x049e6a9aUL, 0xbda6bd07UL, 0xd8c101bfUL, 0x366eb4adUL,
+    0x53090815UL, 0x9a4e721dUL, 0xff29cea5UL, 0x11867bb7UL, 0x74e1c70fUL,
+    0xcdd91092UL, 0xa8beac2aUL, 0x46111938UL, 0x2376a580UL, 0x7566c6d8UL,
+    0x10017a60UL, 0xfeaecf72UL, 0x9bc973caUL, 0x22f1a457UL, 0x479618efUL,
+    0xa939adfdUL, 0xcc5e1145UL, 0x06ee4d76UL, 0x6389f1ceUL, 0x8d2644dcUL,
+    0xe841f864UL, 0x51792ff9UL, 0x341e9341UL, 0xdab12653UL, 0xbfd69aebUL,
+    0xe9c6f9b3UL, 0x8ca1450bUL, 0x620ef019UL, 0x07694ca1UL, 0xbe519b3cUL,
+    0xdb362784UL, 0x35999296UL, 0x50fe2e2eUL, 0x99b95426UL, 0xfcdee89eUL,
+    0x12715d8cUL, 0x7716e134UL, 0xce2e36a9UL, 0xab498a11UL, 0x45e63f03UL,
+    0x208183bbUL, 0x7691e0e3UL, 0x13f65c5bUL, 0xfd59e949UL, 0x983e55f1UL,
+    0x2106826cUL, 0x44613ed4UL, 0xaace8bc6UL, 0xcfa9377eUL, 0x38417fd6UL,
+    0x5d26c36eUL, 0xb389767cUL, 0xd6eecac4UL, 0x6fd61d59UL, 0x0ab1a1e1UL,
+    0xe41e14f3UL, 0x8179a84bUL, 0xd769cb13UL, 0xb20e77abUL, 0x5ca1c2b9UL,
+    0x39c67e01UL, 0x80fea99cUL, 0xe5991524UL, 0x0b36a036UL, 0x6e511c8eUL,
+    0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL,
+    0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL,
+    0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL,
+    0xf10605deUL
+#endif
+  }
+};
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/deflate.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/deflate.c
new file mode 100644
index 000000000..1ec761448
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/deflate.c
@@ -0,0 +1,2163 @@
+/* deflate.c -- compress data using the deflation algorithm
+ * Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ *  ALGORITHM
+ *
+ *      The "deflation" process depends on being able to identify portions
+ *      of the input text which are identical to earlier input (within a
+ *      sliding window trailing behind the input currently being processed).
+ *
+ *      The most straightforward technique turns out to be the fastest for
+ *      most input files: try all possible matches and select the longest.
+ *      The key feature of this algorithm is that insertions into the string
+ *      dictionary are very simple and thus fast, and deletions are avoided
+ *      completely. Insertions are performed at each input character, whereas
+ *      string matches are performed only when the previous match ends. So it
+ *      is preferable to spend more time in matches to allow very fast string
+ *      insertions and avoid deletions. The matching algorithm for small
+ *      strings is inspired from that of Rabin & Karp. A brute force approach
+ *      is used to find longer strings when a small match has been found.
+ *      A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
+ *      (by Leonid Broukhis).
+ *         A previous version of this file used a more sophisticated algorithm
+ *      (by Fiala and Greene) which is guaranteed to run in linear amortized
+ *      time, but has a larger average cost, uses more memory and is patented.
+ *      However the F&G algorithm may be faster for some highly redundant
+ *      files if the parameter max_chain_length (described below) is too large.
+ *
+ *  ACKNOWLEDGEMENTS
+ *
+ *      The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
+ *      I found it in 'freeze' written by Leonid Broukhis.
+ *      Thanks to many people for bug reports and testing.
+ *
+ *  REFERENCES
+ *
+ *      Deutsch, L.P.,"DEFLATE Compressed Data Format Specification".
+ *      Available in http://tools.ietf.org/html/rfc1951
+ *
+ *      A description of the Rabin and Karp algorithm is given in the book
+ *         "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
+ *
+ *      Fiala,E.R., and Greene,D.H.
+ *         Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
+ *
+ */
+
+/* @(#) $Id$ */
+
+#include "deflate.h"
+
+const char deflate_copyright[] =
+   " deflate 1.2.11 Copyright 1995-2017 Jean-loup Gailly and Mark Adler ";
+/*
+  If you use the zlib library in a product, an acknowledgment is welcome
+  in the documentation of your product. If for some reason you cannot
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+/* ===========================================================================
+ *  Function prototypes.
+ */
+typedef enum {
+    need_more,      /* block not completed, need more input or more output */
+    block_done,     /* block flush performed */
+    finish_started, /* finish started, need only more output at next deflate */
+    finish_done     /* finish done, accept no more input or output */
+} block_state;
+
+typedef block_state (*compress_func) OF((deflate_state *s, int flush));
+/* Compression function. Returns the block state after the call. */
+
+local int deflateStateCheck      OF((z_streamp strm));
+local void slide_hash     OF((deflate_state *s));
+local void fill_window    OF((deflate_state *s));
+local block_state deflate_stored OF((deflate_state *s, int flush));
+local block_state deflate_fast   OF((deflate_state *s, int flush));
+#ifndef FASTEST
+local block_state deflate_slow   OF((deflate_state *s, int flush));
+#endif
+local block_state deflate_rle    OF((deflate_state *s, int flush));
+local block_state deflate_huff   OF((deflate_state *s, int flush));
+local void lm_init        OF((deflate_state *s));
+local void putShortMSB    OF((deflate_state *s, uInt b));
+local void flush_pending  OF((z_streamp strm));
+local unsigned read_buf   OF((z_streamp strm, Bytef *buf, unsigned size));
+#ifdef ASMV
+#  pragma message("Assembler code may have bugs -- use at your own risk")
+      void match_init OF((void)); /* asm code initialization */
+      uInt longest_match  OF((deflate_state *s, IPos cur_match));
+#else
+local uInt longest_match  OF((deflate_state *s, IPos cur_match));
+#endif
+
+#ifdef ZLIB_DEBUG
+local  void check_match OF((deflate_state *s, IPos start, IPos match,
+                            int length));
+#endif
+
+/* ===========================================================================
+ * Local data
+ */
+
+#define NIL 0
+/* Tail of hash chains */
+
+#ifndef TOO_FAR
+#  define TOO_FAR 4096
+#endif
+/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+
+/* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+ * exclude worst case performance for pathological files. Better values may be
+ * found for specific files.
+ */
+typedef struct config_s {
+   ush good_length; /* reduce lazy search above this match length */
+   ush max_lazy;    /* do not perform lazy search above this match length */
+   ush nice_length; /* quit search above this match length */
+   ush max_chain;
+   compress_func func;
+} config;
+
+#ifdef FASTEST
+local const config configuration_table[2] = {
+/*      good lazy nice chain */
+/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
+/* 1 */ {4,    4,  8,    4, deflate_fast}}; /* max speed, no lazy matches */
+#else
+local const config configuration_table[10] = {
+/*      good lazy nice chain */
+/* 0 */ {0,    0,  0,    0, deflate_stored},  /* store only */
+/* 1 */ {4,    4,  8,    4, deflate_fast}, /* max speed, no lazy matches */
+/* 2 */ {4,    5, 16,    8, deflate_fast},
+/* 3 */ {4,    6, 32,   32, deflate_fast},
+
+/* 4 */ {4,    4, 16,   16, deflate_slow},  /* lazy matches */
+/* 5 */ {8,   16, 32,   32, deflate_slow},
+/* 6 */ {8,   16, 128, 128, deflate_slow},
+/* 7 */ {8,   32, 128, 256, deflate_slow},
+/* 8 */ {32, 128, 258, 1024, deflate_slow},
+/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */
+#endif
+
+/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
+ * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
+ * meaning.
+ */
+
+/* rank Z_BLOCK between Z_NO_FLUSH and Z_PARTIAL_FLUSH */
+#define RANK(f) (((f) * 2) - ((f) > 4 ? 9 : 0))
+
+/* ===========================================================================
+ * Update a hash value with the given input byte
+ * IN  assertion: all calls to UPDATE_HASH are made with consecutive input
+ *    characters, so that a running hash key can be computed from the previous
+ *    key instead of complete recalculation each time.
+ */
+#define UPDATE_HASH(s,h,c) (h = (((h)<<s->hash_shift) ^ (c)) & s->hash_mask)
+
+
+/* ===========================================================================
+ * Insert string str in the dictionary and set match_head to the previous head
+ * of the hash chain (the most recent string with same hash key). Return
+ * the previous length of the hash chain.
+ * If this file is compiled with -DFASTEST, the compression level is forced
+ * to 1, and no hash chains are maintained.
+ * IN  assertion: all calls to INSERT_STRING are made with consecutive input
+ *    characters and the first MIN_MATCH bytes of str are valid (except for
+ *    the last MIN_MATCH-1 bytes of the input file).
+ */
+#ifdef FASTEST
+#define INSERT_STRING(s, str, match_head) \
+   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
+    match_head = s->head[s->ins_h], \
+    s->head[s->ins_h] = (Pos)(str))
+#else
+#define INSERT_STRING(s, str, match_head) \
+   (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \
+    match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \
+    s->head[s->ins_h] = (Pos)(str))
+#endif
+
+/* ===========================================================================
+ * Initialize the hash table (avoiding 64K overflow for 16 bit systems).
+ * prev[] will be initialized on the fly.
+ */
+#define CLEAR_HASH(s) \
+    s->head[s->hash_size-1] = NIL; \
+    zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head));
+
+/* ===========================================================================
+ * Slide the hash table when sliding the window down (could be avoided with 32
+ * bit values at the expense of memory usage). We slide even when level == 0 to
+ * keep the hash table consistent if we switch back to level > 0 later.
+ */
+local void slide_hash(s)
+    deflate_state *s;
+{
+    unsigned n, m;
+    Posf *p;
+    uInt wsize = s->w_size;
+
+    n = s->hash_size;
+    p = &s->head[n];
+    do {
+        m = *--p;
+        *p = (Pos)(m >= wsize ? m - wsize : NIL);
+    } while (--n);
+    n = wsize;
+#ifndef FASTEST
+    p = &s->prev[n];
+    do {
+        m = *--p;
+        *p = (Pos)(m >= wsize ? m - wsize : NIL);
+        /* If n is not on any hash chain, prev[n] is garbage but
+         * its value will never be used.
+         */
+    } while (--n);
+#endif
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateInit_(strm, level, version, stream_size)
+    z_streamp strm;
+    int level;
+    const char *version;
+    int stream_size;
+{
+    return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL,
+                         Z_DEFAULT_STRATEGY, version, stream_size);
+    /* To do: ignore strm->next_in if we use it as window */
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy,
+                  version, stream_size)
+    z_streamp strm;
+    int  level;
+    int  method;
+    int  windowBits;
+    int  memLevel;
+    int  strategy;
+    const char *version;
+    int stream_size;
+{
+    deflate_state *s;
+    int wrap = 1;
+    static const char my_version[] = ZLIB_VERSION;
+
+    ushf *overlay;
+    /* We overlay pending_buf and d_buf+l_buf. This works since the average
+     * output size for (length,distance) codes is <= 24 bits.
+     */
+
+    if (version == Z_NULL || version[0] != my_version[0] ||
+        stream_size != sizeof(z_stream)) {
+        return Z_VERSION_ERROR;
+    }
+    if (strm == Z_NULL) return Z_STREAM_ERROR;
+
+    strm->msg = Z_NULL;
+    if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+#endif
+    }
+    if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zfree = zcfree;
+#endif
+
+#ifdef FASTEST
+    if (level != 0) level = 1;
+#else
+    if (level == Z_DEFAULT_COMPRESSION) level = 6;
+#endif
+
+    if (windowBits < 0) { /* suppress zlib wrapper */
+        wrap = 0;
+        windowBits = -windowBits;
+    }
+#ifdef GZIP
+    else if (windowBits > 15) {
+        wrap = 2;       /* write gzip wrapper instead */
+        windowBits -= 16;
+    }
+#endif
+    if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED ||
+        windowBits < 8 || windowBits > 15 || level < 0 || level > 9 ||
+        strategy < 0 || strategy > Z_FIXED || (windowBits == 8 && wrap != 1)) {
+        return Z_STREAM_ERROR;
+    }
+    if (windowBits == 8) windowBits = 9;  /* until 256-byte window bug fixed */
+    s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state));
+    if (s == Z_NULL) return Z_MEM_ERROR;
+    strm->state = (struct internal_state FAR *)s;
+    s->strm = strm;
+    s->status = INIT_STATE;     /* to pass state test in deflateReset() */
+
+    s->wrap = wrap;
+    s->gzhead = Z_NULL;
+    s->w_bits = (uInt)windowBits;
+    s->w_size = 1 << s->w_bits;
+    s->w_mask = s->w_size - 1;
+
+    s->hash_bits = (uInt)memLevel + 7;
+    s->hash_size = 1 << s->hash_bits;
+    s->hash_mask = s->hash_size - 1;
+    s->hash_shift =  ((s->hash_bits+MIN_MATCH-1)/MIN_MATCH);
+
+    s->window = (Bytef *) ZALLOC(strm, s->w_size, 2*sizeof(Byte));
+    s->prev   = (Posf *)  ZALLOC(strm, s->w_size, sizeof(Pos));
+    s->head   = (Posf *)  ZALLOC(strm, s->hash_size, sizeof(Pos));
+
+    s->high_water = 0;      /* nothing written to s->window yet */
+
+    s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */
+
+    overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2);
+    s->pending_buf = (uchf *) overlay;
+    s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L);
+
+    if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL ||
+        s->pending_buf == Z_NULL) {
+        s->status = FINISH_STATE;
+        strm->msg = ERR_MSG(Z_MEM_ERROR);
+        deflateEnd (strm);
+        return Z_MEM_ERROR;
+    }
+    s->d_buf = overlay + s->lit_bufsize/sizeof(ush);
+    s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize;
+
+    s->level = level;
+    s->strategy = strategy;
+    s->method = (Byte)method;
+
+    return deflateReset(strm);
+}
+
+/* =========================================================================
+ * Check for a valid deflate stream state. Return 0 if ok, 1 if not.
+ */
+local int deflateStateCheck (strm)
+    z_streamp strm;
+{
+    deflate_state *s;
+    if (strm == Z_NULL ||
+        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
+        return 1;
+    s = strm->state;
+    if (s == Z_NULL || s->strm != strm || (s->status != INIT_STATE &&
+#ifdef GZIP
+                                           s->status != GZIP_STATE &&
+#endif
+                                           s->status != EXTRA_STATE &&
+                                           s->status != NAME_STATE &&
+                                           s->status != COMMENT_STATE &&
+                                           s->status != HCRC_STATE &&
+                                           s->status != BUSY_STATE &&
+                                           s->status != FINISH_STATE))
+        return 1;
+    return 0;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength)
+    z_streamp strm;
+    const Bytef *dictionary;
+    uInt  dictLength;
+{
+    deflate_state *s;
+    uInt str, n;
+    int wrap;
+    unsigned avail;
+    z_const unsigned char *next;
+
+    if (deflateStateCheck(strm) || dictionary == Z_NULL)
+        return Z_STREAM_ERROR;
+    s = strm->state;
+    wrap = s->wrap;
+    if (wrap == 2 || (wrap == 1 && s->status != INIT_STATE) || s->lookahead)
+        return Z_STREAM_ERROR;
+
+    /* when using zlib wrappers, compute Adler-32 for provided dictionary */
+    if (wrap == 1)
+        strm->adler = adler32(strm->adler, dictionary, dictLength);
+    s->wrap = 0;                    /* avoid computing Adler-32 in read_buf */
+
+    /* if dictionary would fill window, just replace the history */
+    if (dictLength >= s->w_size) {
+        if (wrap == 0) {            /* already empty otherwise */
+            CLEAR_HASH(s);
+            s->strstart = 0;
+            s->block_start = 0L;
+            s->insert = 0;
+        }
+        dictionary += dictLength - s->w_size;  /* use the tail */
+        dictLength = s->w_size;
+    }
+
+    /* insert dictionary into window and hash */
+    avail = strm->avail_in;
+    next = strm->next_in;
+    strm->avail_in = dictLength;
+    strm->next_in = (z_const Bytef *)dictionary;
+    fill_window(s);
+    while (s->lookahead >= MIN_MATCH) {
+        str = s->strstart;
+        n = s->lookahead - (MIN_MATCH-1);
+        do {
+            UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+            s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+            s->head[s->ins_h] = (Pos)str;
+            str++;
+        } while (--n);
+        s->strstart = str;
+        s->lookahead = MIN_MATCH-1;
+        fill_window(s);
+    }
+    s->strstart += s->lookahead;
+    s->block_start = (long)s->strstart;
+    s->insert = s->lookahead;
+    s->lookahead = 0;
+    s->match_length = s->prev_length = MIN_MATCH-1;
+    s->match_available = 0;
+    strm->next_in = next;
+    strm->avail_in = avail;
+    s->wrap = wrap;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateGetDictionary (strm, dictionary, dictLength)
+    z_streamp strm;
+    Bytef *dictionary;
+    uInt  *dictLength;
+{
+    deflate_state *s;
+    uInt len;
+
+    if (deflateStateCheck(strm))
+        return Z_STREAM_ERROR;
+    s = strm->state;
+    len = s->strstart + s->lookahead;
+    if (len > s->w_size)
+        len = s->w_size;
+    if (dictionary != Z_NULL && len)
+        zmemcpy(dictionary, s->window + s->strstart + s->lookahead - len, len);
+    if (dictLength != Z_NULL)
+        *dictLength = len;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateResetKeep (strm)
+    z_streamp strm;
+{
+    deflate_state *s;
+
+    if (deflateStateCheck(strm)) {
+        return Z_STREAM_ERROR;
+    }
+
+    strm->total_in = strm->total_out = 0;
+    strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */
+    strm->data_type = Z_UNKNOWN;
+
+    s = (deflate_state *)strm->state;
+    s->pending = 0;
+    s->pending_out = s->pending_buf;
+
+    if (s->wrap < 0) {
+        s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */
+    }
+    s->status =
+#ifdef GZIP
+        s->wrap == 2 ? GZIP_STATE :
+#endif
+        s->wrap ? INIT_STATE : BUSY_STATE;
+    strm->adler =
+#ifdef GZIP
+        s->wrap == 2 ? crc32(0L, Z_NULL, 0) :
+#endif
+        adler32(0L, Z_NULL, 0);
+    s->last_flush = Z_NO_FLUSH;
+
+    _tr_init(s);
+
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateReset (strm)
+    z_streamp strm;
+{
+    int ret;
+
+    ret = deflateResetKeep(strm);
+    if (ret == Z_OK)
+        lm_init(strm->state);
+    return ret;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateSetHeader (strm, head)
+    z_streamp strm;
+    gz_headerp head;
+{
+    if (deflateStateCheck(strm) || strm->state->wrap != 2)
+        return Z_STREAM_ERROR;
+    strm->state->gzhead = head;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflatePending (strm, pending, bits)
+    unsigned *pending;
+    int *bits;
+    z_streamp strm;
+{
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    if (pending != Z_NULL)
+        *pending = strm->state->pending;
+    if (bits != Z_NULL)
+        *bits = strm->state->bi_valid;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflatePrime (strm, bits, value)
+    z_streamp strm;
+    int bits;
+    int value;
+{
+    deflate_state *s;
+    int put;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    s = strm->state;
+    if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3))
+        return Z_BUF_ERROR;
+    do {
+        put = Buf_size - s->bi_valid;
+        if (put > bits)
+            put = bits;
+        s->bi_buf |= (ush)((value & ((1 << put) - 1)) << s->bi_valid);
+        s->bi_valid += put;
+        _tr_flush_bits(s);
+        value >>= put;
+        bits -= put;
+    } while (bits);
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateParams(strm, level, strategy)
+    z_streamp strm;
+    int level;
+    int strategy;
+{
+    deflate_state *s;
+    compress_func func;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    s = strm->state;
+
+#ifdef FASTEST
+    if (level != 0) level = 1;
+#else
+    if (level == Z_DEFAULT_COMPRESSION) level = 6;
+#endif
+    if (level < 0 || level > 9 || strategy < 0 || strategy > Z_FIXED) {
+        return Z_STREAM_ERROR;
+    }
+    func = configuration_table[s->level].func;
+
+    if ((strategy != s->strategy || func != configuration_table[level].func) &&
+        s->high_water) {
+        /* Flush the last buffer: */
+        int err = deflate(strm, Z_BLOCK);
+        if (err == Z_STREAM_ERROR)
+            return err;
+        if (strm->avail_out == 0)
+            return Z_BUF_ERROR;
+    }
+    if (s->level != level) {
+        if (s->level == 0 && s->matches != 0) {
+            if (s->matches == 1)
+                slide_hash(s);
+            else
+                CLEAR_HASH(s);
+            s->matches = 0;
+        }
+        s->level = level;
+        s->max_lazy_match   = configuration_table[level].max_lazy;
+        s->good_match       = configuration_table[level].good_length;
+        s->nice_match       = configuration_table[level].nice_length;
+        s->max_chain_length = configuration_table[level].max_chain;
+    }
+    s->strategy = strategy;
+    return Z_OK;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateTune(strm, good_length, max_lazy, nice_length, max_chain)
+    z_streamp strm;
+    int good_length;
+    int max_lazy;
+    int nice_length;
+    int max_chain;
+{
+    deflate_state *s;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+    s = strm->state;
+    s->good_match = (uInt)good_length;
+    s->max_lazy_match = (uInt)max_lazy;
+    s->nice_match = nice_length;
+    s->max_chain_length = (uInt)max_chain;
+    return Z_OK;
+}
+
+/* =========================================================================
+ * For the default windowBits of 15 and memLevel of 8, this function returns
+ * a close to exact, as well as small, upper bound on the compressed size.
+ * They are coded as constants here for a reason--if the #define's are
+ * changed, then this function needs to be changed as well.  The return
+ * value for 15 and 8 only works for those exact settings.
+ *
+ * For any setting other than those defaults for windowBits and memLevel,
+ * the value returned is a conservative worst case for the maximum expansion
+ * resulting from using fixed blocks instead of stored blocks, which deflate
+ * can emit on compressed data for some combinations of the parameters.
+ *
+ * This function could be more sophisticated to provide closer upper bounds for
+ * every combination of windowBits and memLevel.  But even the conservative
+ * upper bound of about 14% expansion does not seem onerous for output buffer
+ * allocation.
+ */
+uLong ZEXPORT deflateBound(strm, sourceLen)
+    z_streamp strm;
+    uLong sourceLen;
+{
+    deflate_state *s;
+    uLong complen, wraplen;
+
+    /* conservative upper bound for compressed data */
+    complen = sourceLen +
+              ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 5;
+
+    /* if can't get parameters, return conservative bound plus zlib wrapper */
+    if (deflateStateCheck(strm))
+        return complen + 6;
+
+    /* compute wrapper length */
+    s = strm->state;
+    switch (s->wrap) {
+    case 0:                                 /* raw deflate */
+        wraplen = 0;
+        break;
+    case 1:                                 /* zlib wrapper */
+        wraplen = 6 + (s->strstart ? 4 : 0);
+        break;
+#ifdef GZIP
+    case 2:                                 /* gzip wrapper */
+        wraplen = 18;
+        if (s->gzhead != Z_NULL) {          /* user-supplied gzip header */
+            Bytef *str;
+            if (s->gzhead->extra != Z_NULL)
+                wraplen += 2 + s->gzhead->extra_len;
+            str = s->gzhead->name;
+            if (str != Z_NULL)
+                do {
+                    wraplen++;
+                } while (*str++);
+            str = s->gzhead->comment;
+            if (str != Z_NULL)
+                do {
+                    wraplen++;
+                } while (*str++);
+            if (s->gzhead->hcrc)
+                wraplen += 2;
+        }
+        break;
+#endif
+    default:                                /* for compiler happiness */
+        wraplen = 6;
+    }
+
+    /* if not default parameters, return conservative bound */
+    if (s->w_bits != 15 || s->hash_bits != 8 + 7)
+        return complen + wraplen;
+
+    /* default settings: return tight bound for that case */
+    return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) +
+           (sourceLen >> 25) + 13 - 6 + wraplen;
+}
+
+/* =========================================================================
+ * Put a short in the pending buffer. The 16-bit value is put in MSB order.
+ * IN assertion: the stream state is correct and there is enough room in
+ * pending_buf.
+ */
+local void putShortMSB (s, b)
+    deflate_state *s;
+    uInt b;
+{
+    put_byte(s, (Byte)(b >> 8));
+    put_byte(s, (Byte)(b & 0xff));
+}
+
+/* =========================================================================
+ * Flush as much pending output as possible. All deflate() output, except for
+ * some deflate_stored() output, goes through this function so some
+ * applications may wish to modify it to avoid allocating a large
+ * strm->next_out buffer and copying into it. (See also read_buf()).
+ */
+local void flush_pending(strm)
+    z_streamp strm;
+{
+    unsigned len;
+    deflate_state *s = strm->state;
+
+    _tr_flush_bits(s);
+    len = s->pending;
+    if (len > strm->avail_out) len = strm->avail_out;
+    if (len == 0) return;
+
+    zmemcpy(strm->next_out, s->pending_out, len);
+    strm->next_out  += len;
+    s->pending_out  += len;
+    strm->total_out += len;
+    strm->avail_out -= len;
+    s->pending      -= len;
+    if (s->pending == 0) {
+        s->pending_out = s->pending_buf;
+    }
+}
+
+/* ===========================================================================
+ * Update the header CRC with the bytes s->pending_buf[beg..s->pending - 1].
+ */
+#define HCRC_UPDATE(beg) \
+    do { \
+        if (s->gzhead->hcrc && s->pending > (beg)) \
+            strm->adler = crc32(strm->adler, s->pending_buf + (beg), \
+                                s->pending - (beg)); \
+    } while (0)
+
+/* ========================================================================= */
+int ZEXPORT deflate (strm, flush)
+    z_streamp strm;
+    int flush;
+{
+    int old_flush; /* value of flush param for previous deflate call */
+    deflate_state *s;
+
+    if (deflateStateCheck(strm) || flush > Z_BLOCK || flush < 0) {
+        return Z_STREAM_ERROR;
+    }
+    s = strm->state;
+
+    if (strm->next_out == Z_NULL ||
+        (strm->avail_in != 0 && strm->next_in == Z_NULL) ||
+        (s->status == FINISH_STATE && flush != Z_FINISH)) {
+        ERR_RETURN(strm, Z_STREAM_ERROR);
+    }
+    if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
+
+    old_flush = s->last_flush;
+    s->last_flush = flush;
+
+    /* Flush as much pending output as possible */
+    if (s->pending != 0) {
+        flush_pending(strm);
+        if (strm->avail_out == 0) {
+            /* Since avail_out is 0, deflate will be called again with
+             * more output space, but possibly with both pending and
+             * avail_in equal to zero. There won't be anything to do,
+             * but this is not an error situation so make sure we
+             * return OK instead of BUF_ERROR at next call of deflate:
+             */
+            s->last_flush = -1;
+            return Z_OK;
+        }
+
+    /* Make sure there is something to do and avoid duplicate consecutive
+     * flushes. For repeated and useless calls with Z_FINISH, we keep
+     * returning Z_STREAM_END instead of Z_BUF_ERROR.
+     */
+    } else if (strm->avail_in == 0 && RANK(flush) <= RANK(old_flush) &&
+               flush != Z_FINISH) {
+        ERR_RETURN(strm, Z_BUF_ERROR);
+    }
+
+    /* User must not provide more input after the first FINISH: */
+    if (s->status == FINISH_STATE && strm->avail_in != 0) {
+        ERR_RETURN(strm, Z_BUF_ERROR);
+    }
+
+    /* Write the header */
+    if (s->status == INIT_STATE) {
+        /* zlib header */
+        uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8;
+        uInt level_flags;
+
+        if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2)
+            level_flags = 0;
+        else if (s->level < 6)
+            level_flags = 1;
+        else if (s->level == 6)
+            level_flags = 2;
+        else
+            level_flags = 3;
+        header |= (level_flags << 6);
+        if (s->strstart != 0) header |= PRESET_DICT;
+        header += 31 - (header % 31);
+
+        putShortMSB(s, header);
+
+        /* Save the adler32 of the preset dictionary: */
+        if (s->strstart != 0) {
+            putShortMSB(s, (uInt)(strm->adler >> 16));
+            putShortMSB(s, (uInt)(strm->adler & 0xffff));
+        }
+        strm->adler = adler32(0L, Z_NULL, 0);
+        s->status = BUSY_STATE;
+
+        /* Compression must start with an empty pending buffer */
+        flush_pending(strm);
+        if (s->pending != 0) {
+            s->last_flush = -1;
+            return Z_OK;
+        }
+    }
+#ifdef GZIP
+    if (s->status == GZIP_STATE) {
+        /* gzip header */
+        strm->adler = crc32(0L, Z_NULL, 0);
+        put_byte(s, 31);
+        put_byte(s, 139);
+        put_byte(s, 8);
+        if (s->gzhead == Z_NULL) {
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, 0);
+            put_byte(s, s->level == 9 ? 2 :
+                     (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+                      4 : 0));
+            put_byte(s, OS_CODE);
+            s->status = BUSY_STATE;
+
+            /* Compression must start with an empty pending buffer */
+            flush_pending(strm);
+            if (s->pending != 0) {
+                s->last_flush = -1;
+                return Z_OK;
+            }
+        }
+        else {
+            put_byte(s, (s->gzhead->text ? 1 : 0) +
+                     (s->gzhead->hcrc ? 2 : 0) +
+                     (s->gzhead->extra == Z_NULL ? 0 : 4) +
+                     (s->gzhead->name == Z_NULL ? 0 : 8) +
+                     (s->gzhead->comment == Z_NULL ? 0 : 16)
+                     );
+            put_byte(s, (Byte)(s->gzhead->time & 0xff));
+            put_byte(s, (Byte)((s->gzhead->time >> 8) & 0xff));
+            put_byte(s, (Byte)((s->gzhead->time >> 16) & 0xff));
+            put_byte(s, (Byte)((s->gzhead->time >> 24) & 0xff));
+            put_byte(s, s->level == 9 ? 2 :
+                     (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ?
+                      4 : 0));
+            put_byte(s, s->gzhead->os & 0xff);
+            if (s->gzhead->extra != Z_NULL) {
+                put_byte(s, s->gzhead->extra_len & 0xff);
+                put_byte(s, (s->gzhead->extra_len >> 8) & 0xff);
+            }
+            if (s->gzhead->hcrc)
+                strm->adler = crc32(strm->adler, s->pending_buf,
+                                    s->pending);
+            s->gzindex = 0;
+            s->status = EXTRA_STATE;
+        }
+    }
+    if (s->status == EXTRA_STATE) {
+        if (s->gzhead->extra != Z_NULL) {
+            ulg beg = s->pending;   /* start of bytes to update crc */
+            uInt left = (s->gzhead->extra_len & 0xffff) - s->gzindex;
+            while (s->pending + left > s->pending_buf_size) {
+                uInt copy = s->pending_buf_size - s->pending;
+                zmemcpy(s->pending_buf + s->pending,
+                        s->gzhead->extra + s->gzindex, copy);
+                s->pending = s->pending_buf_size;
+                HCRC_UPDATE(beg);
+                s->gzindex += copy;
+                flush_pending(strm);
+                if (s->pending != 0) {
+                    s->last_flush = -1;
+                    return Z_OK;
+                }
+                beg = 0;
+                left -= copy;
+            }
+            zmemcpy(s->pending_buf + s->pending,
+                    s->gzhead->extra + s->gzindex, left);
+            s->pending += left;
+            HCRC_UPDATE(beg);
+            s->gzindex = 0;
+        }
+        s->status = NAME_STATE;
+    }
+    if (s->status == NAME_STATE) {
+        if (s->gzhead->name != Z_NULL) {
+            ulg beg = s->pending;   /* start of bytes to update crc */
+            int val;
+            do {
+                if (s->pending == s->pending_buf_size) {
+                    HCRC_UPDATE(beg);
+                    flush_pending(strm);
+                    if (s->pending != 0) {
+                        s->last_flush = -1;
+                        return Z_OK;
+                    }
+                    beg = 0;
+                }
+                val = s->gzhead->name[s->gzindex++];
+                put_byte(s, val);
+            } while (val != 0);
+            HCRC_UPDATE(beg);
+            s->gzindex = 0;
+        }
+        s->status = COMMENT_STATE;
+    }
+    if (s->status == COMMENT_STATE) {
+        if (s->gzhead->comment != Z_NULL) {
+            ulg beg = s->pending;   /* start of bytes to update crc */
+            int val;
+            do {
+                if (s->pending == s->pending_buf_size) {
+                    HCRC_UPDATE(beg);
+                    flush_pending(strm);
+                    if (s->pending != 0) {
+                        s->last_flush = -1;
+                        return Z_OK;
+                    }
+                    beg = 0;
+                }
+                val = s->gzhead->comment[s->gzindex++];
+                put_byte(s, val);
+            } while (val != 0);
+            HCRC_UPDATE(beg);
+        }
+        s->status = HCRC_STATE;
+    }
+    if (s->status == HCRC_STATE) {
+        if (s->gzhead->hcrc) {
+            if (s->pending + 2 > s->pending_buf_size) {
+                flush_pending(strm);
+                if (s->pending != 0) {
+                    s->last_flush = -1;
+                    return Z_OK;
+                }
+            }
+            put_byte(s, (Byte)(strm->adler & 0xff));
+            put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
+            strm->adler = crc32(0L, Z_NULL, 0);
+        }
+        s->status = BUSY_STATE;
+
+        /* Compression must start with an empty pending buffer */
+        flush_pending(strm);
+        if (s->pending != 0) {
+            s->last_flush = -1;
+            return Z_OK;
+        }
+    }
+#endif
+
+    /* Start a new block or continue the current one.
+     */
+    if (strm->avail_in != 0 || s->lookahead != 0 ||
+        (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) {
+        block_state bstate;
+
+        bstate = s->level == 0 ? deflate_stored(s, flush) :
+                 s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) :
+                 s->strategy == Z_RLE ? deflate_rle(s, flush) :
+                 (*(configuration_table[s->level].func))(s, flush);
+
+        if (bstate == finish_started || bstate == finish_done) {
+            s->status = FINISH_STATE;
+        }
+        if (bstate == need_more || bstate == finish_started) {
+            if (strm->avail_out == 0) {
+                s->last_flush = -1; /* avoid BUF_ERROR next call, see above */
+            }
+            return Z_OK;
+            /* If flush != Z_NO_FLUSH && avail_out == 0, the next call
+             * of deflate should use the same flush parameter to make sure
+             * that the flush is complete. So we don't have to output an
+             * empty block here, this will be done at next call. This also
+             * ensures that for a very small output buffer, we emit at most
+             * one empty block.
+             */
+        }
+        if (bstate == block_done) {
+            if (flush == Z_PARTIAL_FLUSH) {
+                _tr_align(s);
+            } else if (flush != Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */
+                _tr_stored_block(s, (char*)0, 0L, 0);
+                /* For a full flush, this empty block will be recognized
+                 * as a special marker by inflate_sync().
+                 */
+                if (flush == Z_FULL_FLUSH) {
+                    CLEAR_HASH(s);             /* forget history */
+                    if (s->lookahead == 0) {
+                        s->strstart = 0;
+                        s->block_start = 0L;
+                        s->insert = 0;
+                    }
+                }
+            }
+            flush_pending(strm);
+            if (strm->avail_out == 0) {
+              s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */
+              return Z_OK;
+            }
+        }
+    }
+
+    if (flush != Z_FINISH) return Z_OK;
+    if (s->wrap <= 0) return Z_STREAM_END;
+
+    /* Write the trailer */
+#ifdef GZIP
+    if (s->wrap == 2) {
+        put_byte(s, (Byte)(strm->adler & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 8) & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 16) & 0xff));
+        put_byte(s, (Byte)((strm->adler >> 24) & 0xff));
+        put_byte(s, (Byte)(strm->total_in & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 8) & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 16) & 0xff));
+        put_byte(s, (Byte)((strm->total_in >> 24) & 0xff));
+    }
+    else
+#endif
+    {
+        putShortMSB(s, (uInt)(strm->adler >> 16));
+        putShortMSB(s, (uInt)(strm->adler & 0xffff));
+    }
+    flush_pending(strm);
+    /* If avail_out is zero, the application will call deflate again
+     * to flush the rest.
+     */
+    if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */
+    return s->pending != 0 ? Z_OK : Z_STREAM_END;
+}
+
+/* ========================================================================= */
+int ZEXPORT deflateEnd (strm)
+    z_streamp strm;
+{
+    int status;
+
+    if (deflateStateCheck(strm)) return Z_STREAM_ERROR;
+
+    status = strm->state->status;
+
+    /* Deallocate in reverse order of allocations: */
+    TRY_FREE(strm, strm->state->pending_buf);
+    TRY_FREE(strm, strm->state->head);
+    TRY_FREE(strm, strm->state->prev);
+    TRY_FREE(strm, strm->state->window);
+
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+
+    return status == BUSY_STATE ? Z_DATA_ERROR : Z_OK;
+}
+
+/* =========================================================================
+ * Copy the source state to the destination state.
+ * To simplify the source, this is not supported for 16-bit MSDOS (which
+ * doesn't have enough memory anyway to duplicate compression states).
+ */
+int ZEXPORT deflateCopy (dest, source)
+    z_streamp dest;
+    z_streamp source;
+{
+#ifdef MAXSEG_64K
+    return Z_STREAM_ERROR;
+#else
+    deflate_state *ds;
+    deflate_state *ss;
+    ushf *overlay;
+
+
+    if (deflateStateCheck(source) || dest == Z_NULL) {
+        return Z_STREAM_ERROR;
+    }
+
+    ss = source->state;
+
+    zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
+
+    ds = (deflate_state *) ZALLOC(dest, 1, sizeof(deflate_state));
+    if (ds == Z_NULL) return Z_MEM_ERROR;
+    dest->state = (struct internal_state FAR *) ds;
+    zmemcpy((voidpf)ds, (voidpf)ss, sizeof(deflate_state));
+    ds->strm = dest;
+
+    ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte));
+    ds->prev   = (Posf *)  ZALLOC(dest, ds->w_size, sizeof(Pos));
+    ds->head   = (Posf *)  ZALLOC(dest, ds->hash_size, sizeof(Pos));
+    overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2);
+    ds->pending_buf = (uchf *) overlay;
+
+    if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL ||
+        ds->pending_buf == Z_NULL) {
+        deflateEnd (dest);
+        return Z_MEM_ERROR;
+    }
+    /* following zmemcpy do not work for 16-bit MSDOS */
+    zmemcpy(ds->window, ss->window, ds->w_size * 2 * sizeof(Byte));
+    zmemcpy((voidpf)ds->prev, (voidpf)ss->prev, ds->w_size * sizeof(Pos));
+    zmemcpy((voidpf)ds->head, (voidpf)ss->head, ds->hash_size * sizeof(Pos));
+    zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size);
+
+    ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf);
+    ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush);
+    ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize;
+
+    ds->l_desc.dyn_tree = ds->dyn_ltree;
+    ds->d_desc.dyn_tree = ds->dyn_dtree;
+    ds->bl_desc.dyn_tree = ds->bl_tree;
+
+    return Z_OK;
+#endif /* MAXSEG_64K */
+}
+
+/* ===========================================================================
+ * Read a new buffer from the current input stream, update the adler32
+ * and total number of bytes read.  All deflate() input goes through
+ * this function so some applications may wish to modify it to avoid
+ * allocating a large strm->next_in buffer and copying from it.
+ * (See also flush_pending()).
+ */
+local unsigned read_buf(strm, buf, size)
+    z_streamp strm;
+    Bytef *buf;
+    unsigned size;
+{
+    unsigned len = strm->avail_in;
+
+    if (len > size) len = size;
+    if (len == 0) return 0;
+
+    strm->avail_in  -= len;
+
+    zmemcpy(buf, strm->next_in, len);
+    if (strm->state->wrap == 1) {
+        strm->adler = adler32(strm->adler, buf, len);
+    }
+#ifdef GZIP
+    else if (strm->state->wrap == 2) {
+        strm->adler = crc32(strm->adler, buf, len);
+    }
+#endif
+    strm->next_in  += len;
+    strm->total_in += len;
+
+    return len;
+}
+
+/* ===========================================================================
+ * Initialize the "longest match" routines for a new zlib stream
+ */
+local void lm_init (s)
+    deflate_state *s;
+{
+    s->window_size = (ulg)2L*s->w_size;
+
+    CLEAR_HASH(s);
+
+    /* Set the default configuration parameters:
+     */
+    s->max_lazy_match   = configuration_table[s->level].max_lazy;
+    s->good_match       = configuration_table[s->level].good_length;
+    s->nice_match       = configuration_table[s->level].nice_length;
+    s->max_chain_length = configuration_table[s->level].max_chain;
+
+    s->strstart = 0;
+    s->block_start = 0L;
+    s->lookahead = 0;
+    s->insert = 0;
+    s->match_length = s->prev_length = MIN_MATCH-1;
+    s->match_available = 0;
+    s->ins_h = 0;
+#ifndef FASTEST
+#ifdef ASMV
+    match_init(); /* initialize the asm code */
+#endif
+#endif
+}
+
+#ifndef FASTEST
+/* ===========================================================================
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ *   string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ * OUT assertion: the match length is not greater than s->lookahead.
+ */
+#ifndef ASMV
+/* For 80x86 and 680x0, an optimized version will be provided in match.asm or
+ * match.S. The code will be functionally equivalent.
+ */
+local uInt longest_match(s, cur_match)
+    deflate_state *s;
+    IPos cur_match;                             /* current match */
+{
+    unsigned chain_length = s->max_chain_length;/* max hash chain length */
+    register Bytef *scan = s->window + s->strstart; /* current string */
+    register Bytef *match;                      /* matched string */
+    register int len;                           /* length of current match */
+    int best_len = (int)s->prev_length;         /* best match length so far */
+    int nice_match = s->nice_match;             /* stop if match long enough */
+    IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+        s->strstart - (IPos)MAX_DIST(s) : NIL;
+    /* Stop when cur_match becomes <= limit. To simplify the code,
+     * we prevent matches with the string of window index 0.
+     */
+    Posf *prev = s->prev;
+    uInt wmask = s->w_mask;
+
+#ifdef UNALIGNED_OK
+    /* Compare two bytes at a time. Note: this is not always beneficial.
+     * Try with and without -DUNALIGNED_OK to check.
+     */
+    register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1;
+    register ush scan_start = *(ushf*)scan;
+    register ush scan_end   = *(ushf*)(scan+best_len-1);
+#else
+    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
+    register Byte scan_end1  = scan[best_len-1];
+    register Byte scan_end   = scan[best_len];
+#endif
+
+    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+     * It is easy to get rid of this optimization if necessary.
+     */
+    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
+
+    /* Do not waste too much time if we already have a good match: */
+    if (s->prev_length >= s->good_match) {
+        chain_length >>= 2;
+    }
+    /* Do not look for matches beyond the end of the input. This is necessary
+     * to make deflate deterministic.
+     */
+    if ((uInt)nice_match > s->lookahead) nice_match = (int)s->lookahead;
+
+    Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
+
+    do {
+        Assert(cur_match < s->strstart, "no future");
+        match = s->window + cur_match;
+
+        /* Skip to next match if the match length cannot increase
+         * or if the match length is less than 2.  Note that the checks below
+         * for insufficient lookahead only occur occasionally for performance
+         * reasons.  Therefore uninitialized memory will be accessed, and
+         * conditional jumps will be made that depend on those values.
+         * However the length of the match is limited to the lookahead, so
+         * the output of deflate is not affected by the uninitialized values.
+         */
+#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
+        /* This code assumes sizeof(unsigned short) == 2. Do not use
+         * UNALIGNED_OK if your compiler uses a different size.
+         */
+        if (*(ushf*)(match+best_len-1) != scan_end ||
+            *(ushf*)match != scan_start) continue;
+
+        /* It is not necessary to compare scan[2] and match[2] since they are
+         * always equal when the other bytes match, given that the hash keys
+         * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
+         * strstart+3, +5, ... up to strstart+257. We check for insufficient
+         * lookahead only every 4th comparison; the 128th check will be made
+         * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
+         * necessary to put more guard bytes at the end of the window, or
+         * to check more often for insufficient lookahead.
+         */
+        Assert(scan[2] == match[2], "scan[2]?");
+        scan++, match++;
+        do {
+        } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
+                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
+                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
+                 *(ushf*)(scan+=2) == *(ushf*)(match+=2) &&
+                 scan < strend);
+        /* The funny "do {}" generates better code on most compilers */
+
+        /* Here, scan <= window+strstart+257 */
+        Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
+        if (*scan == *match) scan++;
+
+        len = (MAX_MATCH - 1) - (int)(strend-scan);
+        scan = strend - (MAX_MATCH-1);
+
+#else /* UNALIGNED_OK */
+
+        if (match[best_len]   != scan_end  ||
+            match[best_len-1] != scan_end1 ||
+            *match            != *scan     ||
+            *++match          != scan[1])      continue;
+
+        /* The check at best_len-1 can be removed because it will be made
+         * again later. (This heuristic is not always a win.)
+         * It is not necessary to compare scan[2] and match[2] since they
+         * are always equal when the other bytes match, given that
+         * the hash keys are equal and that HASH_BITS >= 8.
+         */
+        scan += 2, match++;
+        Assert(*scan == *match, "match[2]?");
+
+        /* We check for insufficient lookahead only every 8th comparison;
+         * the 256th check will be made at strstart+258.
+         */
+        do {
+        } while (*++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 *++scan == *++match && *++scan == *++match &&
+                 scan < strend);
+
+        Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
+
+        len = MAX_MATCH - (int)(strend - scan);
+        scan = strend - MAX_MATCH;
+
+#endif /* UNALIGNED_OK */
+
+        if (len > best_len) {
+            s->match_start = cur_match;
+            best_len = len;
+            if (len >= nice_match) break;
+#ifdef UNALIGNED_OK
+            scan_end = *(ushf*)(scan+best_len-1);
+#else
+            scan_end1  = scan[best_len-1];
+            scan_end   = scan[best_len];
+#endif
+        }
+    } while ((cur_match = prev[cur_match & wmask]) > limit
+             && --chain_length != 0);
+
+    if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
+    return s->lookahead;
+}
+#endif /* ASMV */
+
+#else /* FASTEST */
+
+/* ---------------------------------------------------------------------------
+ * Optimized version for FASTEST only
+ */
+local uInt longest_match(s, cur_match)
+    deflate_state *s;
+    IPos cur_match;                             /* current match */
+{
+    register Bytef *scan = s->window + s->strstart; /* current string */
+    register Bytef *match;                       /* matched string */
+    register int len;                           /* length of current match */
+    register Bytef *strend = s->window + s->strstart + MAX_MATCH;
+
+    /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+     * It is easy to get rid of this optimization if necessary.
+     */
+    Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever");
+
+    Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead");
+
+    Assert(cur_match < s->strstart, "no future");
+
+    match = s->window + cur_match;
+
+    /* Return failure if the match length is less than 2:
+     */
+    if (match[0] != scan[0] || match[1] != scan[1]) return MIN_MATCH-1;
+
+    /* The check at best_len-1 can be removed because it will be made
+     * again later. (This heuristic is not always a win.)
+     * It is not necessary to compare scan[2] and match[2] since they
+     * are always equal when the other bytes match, given that
+     * the hash keys are equal and that HASH_BITS >= 8.
+     */
+    scan += 2, match += 2;
+    Assert(*scan == *match, "match[2]?");
+
+    /* We check for insufficient lookahead only every 8th comparison;
+     * the 256th check will be made at strstart+258.
+     */
+    do {
+    } while (*++scan == *++match && *++scan == *++match &&
+             *++scan == *++match && *++scan == *++match &&
+             *++scan == *++match && *++scan == *++match &&
+             *++scan == *++match && *++scan == *++match &&
+             scan < strend);
+
+    Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan");
+
+    len = MAX_MATCH - (int)(strend - scan);
+
+    if (len < MIN_MATCH) return MIN_MATCH - 1;
+
+    s->match_start = cur_match;
+    return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead;
+}
+
+#endif /* FASTEST */
+
+#ifdef ZLIB_DEBUG
+
+#define EQUAL 0
+/* result of memcmp for equal strings */
+
+/* ===========================================================================
+ * Check that the match at match_start is indeed a match.
+ */
+local void check_match(s, start, match, length)
+    deflate_state *s;
+    IPos start, match;
+    int length;
+{
+    /* check that the match is indeed a match */
+    if (zmemcmp(s->window + match,
+                s->window + start, length) != EQUAL) {
+        fprintf(stderr, " start %u, match %u, length %d\n",
+                start, match, length);
+        do {
+            fprintf(stderr, "%c%c", s->window[match++], s->window[start++]);
+        } while (--length != 0);
+        z_error("invalid match");
+    }
+    if (z_verbose > 1) {
+        fprintf(stderr,"\\[%d,%d]", start-match, length);
+        do { putc(s->window[start++], stderr); } while (--length != 0);
+    }
+}
+#else
+#  define check_match(s, start, match, length)
+#endif /* ZLIB_DEBUG */
+
+/* ===========================================================================
+ * Fill the window when the lookahead becomes insufficient.
+ * Updates strstart and lookahead.
+ *
+ * IN assertion: lookahead < MIN_LOOKAHEAD
+ * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD
+ *    At least one byte has been read, or avail_in == 0; reads are
+ *    performed for at least two bytes (required for the zip translate_eol
+ *    option -- not supported here).
+ */
+local void fill_window(s)
+    deflate_state *s;
+{
+    unsigned n;
+    unsigned more;    /* Amount of free space at the end of the window. */
+    uInt wsize = s->w_size;
+
+    Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead");
+
+    do {
+        more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart);
+
+        /* Deal with !@#$% 64K limit: */
+        if (sizeof(int) <= 2) {
+            if (more == 0 && s->strstart == 0 && s->lookahead == 0) {
+                more = wsize;
+
+            } else if (more == (unsigned)(-1)) {
+                /* Very unlikely, but possible on 16 bit machine if
+                 * strstart == 0 && lookahead == 1 (input done a byte at time)
+                 */
+                more--;
+            }
+        }
+
+        /* If the window is almost full and there is insufficient lookahead,
+         * move the upper half to the lower one to make room in the upper half.
+         */
+        if (s->strstart >= wsize+MAX_DIST(s)) {
+
+            zmemcpy(s->window, s->window+wsize, (unsigned)wsize - more);
+            s->match_start -= wsize;
+            s->strstart    -= wsize; /* we now have strstart >= MAX_DIST */
+            s->block_start -= (long) wsize;
+            slide_hash(s);
+            more += wsize;
+        }
+        if (s->strm->avail_in == 0) break;
+
+        /* If there was no sliding:
+         *    strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 &&
+         *    more == window_size - lookahead - strstart
+         * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1)
+         * => more >= window_size - 2*WSIZE + 2
+         * In the BIG_MEM or MMAP case (not yet supported),
+         *   window_size == input_size + MIN_LOOKAHEAD  &&
+         *   strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD.
+         * Otherwise, window_size == 2*WSIZE so more >= 2.
+         * If there was sliding, more >= WSIZE. So in all cases, more >= 2.
+         */
+        Assert(more >= 2, "more < 2");
+
+        n = read_buf(s->strm, s->window + s->strstart + s->lookahead, more);
+        s->lookahead += n;
+
+        /* Initialize the hash value now that we have some input: */
+        if (s->lookahead + s->insert >= MIN_MATCH) {
+            uInt str = s->strstart - s->insert;
+            s->ins_h = s->window[str];
+            UPDATE_HASH(s, s->ins_h, s->window[str + 1]);
+#if MIN_MATCH != 3
+            Call UPDATE_HASH() MIN_MATCH-3 more times
+#endif
+            while (s->insert) {
+                UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]);
+#ifndef FASTEST
+                s->prev[str & s->w_mask] = s->head[s->ins_h];
+#endif
+                s->head[s->ins_h] = (Pos)str;
+                str++;
+                s->insert--;
+                if (s->lookahead + s->insert < MIN_MATCH)
+                    break;
+            }
+        }
+        /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage,
+         * but this is not important since only literal bytes will be emitted.
+         */
+
+    } while (s->lookahead < MIN_LOOKAHEAD && s->strm->avail_in != 0);
+
+    /* If the WIN_INIT bytes after the end of the current data have never been
+     * written, then zero those bytes in order to avoid memory check reports of
+     * the use of uninitialized (or uninitialised as Julian writes) bytes by
+     * the longest match routines.  Update the high water mark for the next
+     * time through here.  WIN_INIT is set to MAX_MATCH since the longest match
+     * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead.
+     */
+    if (s->high_water < s->window_size) {
+        ulg curr = s->strstart + (ulg)(s->lookahead);
+        ulg init;
+
+        if (s->high_water < curr) {
+            /* Previous high water mark below current data -- zero WIN_INIT
+             * bytes or up to end of window, whichever is less.
+             */
+            init = s->window_size - curr;
+            if (init > WIN_INIT)
+                init = WIN_INIT;
+            zmemzero(s->window + curr, (unsigned)init);
+            s->high_water = curr + init;
+        }
+        else if (s->high_water < (ulg)curr + WIN_INIT) {
+            /* High water mark at or above current data, but below current data
+             * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up
+             * to end of window, whichever is less.
+             */
+            init = (ulg)curr + WIN_INIT - s->high_water;
+            if (init > s->window_size - s->high_water)
+                init = s->window_size - s->high_water;
+            zmemzero(s->window + s->high_water, (unsigned)init);
+            s->high_water += init;
+        }
+    }
+
+    Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD,
+           "not enough room for search");
+}
+
+/* ===========================================================================
+ * Flush the current block, with given end-of-file flag.
+ * IN assertion: strstart is set to the end of the current match.
+ */
+#define FLUSH_BLOCK_ONLY(s, last) { \
+   _tr_flush_block(s, (s->block_start >= 0L ? \
+                   (charf *)&s->window[(unsigned)s->block_start] : \
+                   (charf *)Z_NULL), \
+                (ulg)((long)s->strstart - s->block_start), \
+                (last)); \
+   s->block_start = s->strstart; \
+   flush_pending(s->strm); \
+   Tracev((stderr,"[FLUSH]")); \
+}
+
+/* Same but force premature exit if necessary. */
+#define FLUSH_BLOCK(s, last) { \
+   FLUSH_BLOCK_ONLY(s, last); \
+   if (s->strm->avail_out == 0) return (last) ? finish_started : need_more; \
+}
+
+/* Maximum stored block length in deflate format (not including header). */
+#define MAX_STORED 65535
+
+/* Minimum of a and b. */
+#define MIN(a, b) ((a) > (b) ? (b) : (a))
+
+/* ===========================================================================
+ * Copy without compression as much as possible from the input stream, return
+ * the current block state.
+ *
+ * In case deflateParams() is used to later switch to a non-zero compression
+ * level, s->matches (otherwise unused when storing) keeps track of the number
+ * of hash table slides to perform. If s->matches is 1, then one hash table
+ * slide will be done when switching. If s->matches is 2, the maximum value
+ * allowed here, then the hash table will be cleared, since two or more slides
+ * is the same as a clear.
+ *
+ * deflate_stored() is written to minimize the number of times an input byte is
+ * copied. It is most efficient with large input and output buffers, which
+ * maximizes the opportunites to have a single copy from next_in to next_out.
+ */
+local block_state deflate_stored(s, flush)
+    deflate_state *s;
+    int flush;
+{
+    /* Smallest worthy block size when not flushing or finishing. By default
+     * this is 32K. This can be as small as 507 bytes for memLevel == 1. For
+     * large input and output buffers, the stored block size will be larger.
+     */
+    unsigned min_block = MIN(s->pending_buf_size - 5, s->w_size);
+
+    /* Copy as many min_block or larger stored blocks directly to next_out as
+     * possible. If flushing, copy the remaining available input to next_out as
+     * stored blocks, if there is enough space.
+     */
+    unsigned len, left, have, last = 0;
+    unsigned used = s->strm->avail_in;
+    do {
+        /* Set len to the maximum size block that we can copy directly with the
+         * available input data and output space. Set left to how much of that
+         * would be copied from what's left in the window.
+         */
+        len = MAX_STORED;       /* maximum deflate stored block length */
+        have = (s->bi_valid + 42) >> 3;         /* number of header bytes */
+        if (s->strm->avail_out < have)          /* need room for header */
+            break;
+            /* maximum stored block length that will fit in avail_out: */
+        have = s->strm->avail_out - have;
+        left = s->strstart - s->block_start;    /* bytes left in window */
+        if (len > (ulg)left + s->strm->avail_in)
+            len = left + s->strm->avail_in;     /* limit len to the input */
+        if (len > have)
+            len = have;                         /* limit len to the output */
+
+        /* If the stored block would be less than min_block in length, or if
+         * unable to copy all of the available input when flushing, then try
+         * copying to the window and the pending buffer instead. Also don't
+         * write an empty block when flushing -- deflate() does that.
+         */
+        if (len < min_block && ((len == 0 && flush != Z_FINISH) ||
+                                flush == Z_NO_FLUSH ||
+                                len != left + s->strm->avail_in))
+            break;
+
+        /* Make a dummy stored block in pending to get the header bytes,
+         * including any pending bits. This also updates the debugging counts.
+         */
+        last = flush == Z_FINISH && len == left + s->strm->avail_in ? 1 : 0;
+        _tr_stored_block(s, (char *)0, 0L, last);
+
+        /* Replace the lengths in the dummy stored block with len. */
+        s->pending_buf[s->pending - 4] = len;
+        s->pending_buf[s->pending - 3] = len >> 8;
+        s->pending_buf[s->pending - 2] = ~len;
+        s->pending_buf[s->pending - 1] = ~len >> 8;
+
+        /* Write the stored block header bytes. */
+        flush_pending(s->strm);
+
+#ifdef ZLIB_DEBUG
+        /* Update debugging counts for the data about to be copied. */
+        s->compressed_len += len << 3;
+        s->bits_sent += len << 3;
+#endif
+
+        /* Copy uncompressed bytes from the window to next_out. */
+        if (left) {
+            if (left > len)
+                left = len;
+            zmemcpy(s->strm->next_out, s->window + s->block_start, left);
+            s->strm->next_out += left;
+            s->strm->avail_out -= left;
+            s->strm->total_out += left;
+            s->block_start += left;
+            len -= left;
+        }
+
+        /* Copy uncompressed bytes directly from next_in to next_out, updating
+         * the check value.
+         */
+        if (len) {
+            read_buf(s->strm, s->strm->next_out, len);
+            s->strm->next_out += len;
+            s->strm->avail_out -= len;
+            s->strm->total_out += len;
+        }
+    } while (last == 0);
+
+    /* Update the sliding window with the last s->w_size bytes of the copied
+     * data, or append all of the copied data to the existing window if less
+     * than s->w_size bytes were copied. Also update the number of bytes to
+     * insert in the hash tables, in the event that deflateParams() switches to
+     * a non-zero compression level.
+     */
+    used -= s->strm->avail_in;      /* number of input bytes directly copied */
+    if (used) {
+        /* If any input was used, then no unused input remains in the window,
+         * therefore s->block_start == s->strstart.
+         */
+        if (used >= s->w_size) {    /* supplant the previous history */
+            s->matches = 2;         /* clear hash */
+            zmemcpy(s->window, s->strm->next_in - s->w_size, s->w_size);
+            s->strstart = s->w_size;
+        }
+        else {
+            if (s->window_size - s->strstart <= used) {
+                /* Slide the window down. */
+                s->strstart -= s->w_size;
+                zmemcpy(s->window, s->window + s->w_size, s->strstart);
+                if (s->matches < 2)
+                    s->matches++;   /* add a pending slide_hash() */
+            }
+            zmemcpy(s->window + s->strstart, s->strm->next_in - used, used);
+            s->strstart += used;
+        }
+        s->block_start = s->strstart;
+        s->insert += MIN(used, s->w_size - s->insert);
+    }
+    if (s->high_water < s->strstart)
+        s->high_water = s->strstart;
+
+    /* If the last block was written to next_out, then done. */
+    if (last)
+        return finish_done;
+
+    /* If flushing and all input has been consumed, then done. */
+    if (flush != Z_NO_FLUSH && flush != Z_FINISH &&
+        s->strm->avail_in == 0 && (long)s->strstart == s->block_start)
+        return block_done;
+
+    /* Fill the window with any remaining input. */
+    have = s->window_size - s->strstart - 1;
+    if (s->strm->avail_in > have && s->block_start >= (long)s->w_size) {
+        /* Slide the window down. */
+        s->block_start -= s->w_size;
+        s->strstart -= s->w_size;
+        zmemcpy(s->window, s->window + s->w_size, s->strstart);
+        if (s->matches < 2)
+            s->matches++;           /* add a pending slide_hash() */
+        have += s->w_size;          /* more space now */
+    }
+    if (have > s->strm->avail_in)
+        have = s->strm->avail_in;
+    if (have) {
+        read_buf(s->strm, s->window + s->strstart, have);
+        s->strstart += have;
+    }
+    if (s->high_water < s->strstart)
+        s->high_water = s->strstart;
+
+    /* There was not enough avail_out to write a complete worthy or flushed
+     * stored block to next_out. Write a stored block to pending instead, if we
+     * have enough input for a worthy block, or if flushing and there is enough
+     * room for the remaining input as a stored block in the pending buffer.
+     */
+    have = (s->bi_valid + 42) >> 3;         /* number of header bytes */
+        /* maximum stored block length that will fit in pending: */
+    have = MIN(s->pending_buf_size - have, MAX_STORED);
+    min_block = MIN(have, s->w_size);
+    left = s->strstart - s->block_start;
+    if (left >= min_block ||
+        ((left || flush == Z_FINISH) && flush != Z_NO_FLUSH &&
+         s->strm->avail_in == 0 && left <= have)) {
+        len = MIN(left, have);
+        last = flush == Z_FINISH && s->strm->avail_in == 0 &&
+               len == left ? 1 : 0;
+        _tr_stored_block(s, (charf *)s->window + s->block_start, len, last);
+        s->block_start += len;
+        flush_pending(s->strm);
+    }
+
+    /* We've done all we can with the available input and output. */
+    return last ? finish_started : need_more;
+}
+
+/* ===========================================================================
+ * Compress as much as possible from the input stream, return the current
+ * block state.
+ * This function does not perform lazy evaluation of matches and inserts
+ * new strings in the dictionary only for unmatched strings or for short
+ * matches. It is used only for the fast compression options.
+ */
+local block_state deflate_fast(s, flush)
+    deflate_state *s;
+    int flush;
+{
+    IPos hash_head;       /* head of the hash chain */
+    int bflush;           /* set if current block must be flushed */
+
+    for (;;) {
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the next match, plus MIN_MATCH bytes to insert the
+         * string following the next match.
+         */
+        if (s->lookahead < MIN_LOOKAHEAD) {
+            fill_window(s);
+            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
+                return need_more;
+            }
+            if (s->lookahead == 0) break; /* flush the current block */
+        }
+
+        /* Insert the string window[strstart .. strstart+2] in the
+         * dictionary, and set hash_head to the head of the hash chain:
+         */
+        hash_head = NIL;
+        if (s->lookahead >= MIN_MATCH) {
+            INSERT_STRING(s, s->strstart, hash_head);
+        }
+
+        /* Find the longest match, discarding those <= prev_length.
+         * At this point we have always match_length < MIN_MATCH
+         */
+        if (hash_head != NIL && s->strstart - hash_head <= MAX_DIST(s)) {
+            /* To simplify the code, we prevent matches with the string
+             * of window index 0 (in particular we have to avoid a match
+             * of the string with itself at the start of the input file).
+             */
+            s->match_length = longest_match (s, hash_head);
+            /* longest_match() sets match_start */
+        }
+        if (s->match_length >= MIN_MATCH) {
+            check_match(s, s->strstart, s->match_start, s->match_length);
+
+            _tr_tally_dist(s, s->strstart - s->match_start,
+                           s->match_length - MIN_MATCH, bflush);
+
+            s->lookahead -= s->match_length;
+
+            /* Insert new strings in the hash table only if the match length
+             * is not too large. This saves time but degrades compression.
+             */
+#ifndef FASTEST
+            if (s->match_length <= s->max_insert_length &&
+                s->lookahead >= MIN_MATCH) {
+                s->match_length--; /* string at strstart already in table */
+                do {
+                    s->strstart++;
+                    INSERT_STRING(s, s->strstart, hash_head);
+                    /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+                     * always MIN_MATCH bytes ahead.
+                     */
+                } while (--s->match_length != 0);
+                s->strstart++;
+            } else
+#endif
+            {
+                s->strstart += s->match_length;
+                s->match_length = 0;
+                s->ins_h = s->window[s->strstart];
+                UPDATE_HASH(s, s->ins_h, s->window[s->strstart+1]);
+#if MIN_MATCH != 3
+                Call UPDATE_HASH() MIN_MATCH-3 more times
+#endif
+                /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not
+                 * matter since it will be recomputed at next deflate call.
+                 */
+            }
+        } else {
+            /* No match, output a literal byte */
+            Tracevv((stderr,"%c", s->window[s->strstart]));
+            _tr_tally_lit (s, s->window[s->strstart], bflush);
+            s->lookahead--;
+            s->strstart++;
+        }
+        if (bflush) FLUSH_BLOCK(s, 0);
+    }
+    s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->last_lit)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
+
+#ifndef FASTEST
+/* ===========================================================================
+ * Same as above, but achieves better compression. We use a lazy
+ * evaluation for matches: a match is finally adopted only if there is
+ * no better match at the next window position.
+ */
+local block_state deflate_slow(s, flush)
+    deflate_state *s;
+    int flush;
+{
+    IPos hash_head;          /* head of hash chain */
+    int bflush;              /* set if current block must be flushed */
+
+    /* Process the input block. */
+    for (;;) {
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the next match, plus MIN_MATCH bytes to insert the
+         * string following the next match.
+         */
+        if (s->lookahead < MIN_LOOKAHEAD) {
+            fill_window(s);
+            if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) {
+                return need_more;
+            }
+            if (s->lookahead == 0) break; /* flush the current block */
+        }
+
+        /* Insert the string window[strstart .. strstart+2] in the
+         * dictionary, and set hash_head to the head of the hash chain:
+         */
+        hash_head = NIL;
+        if (s->lookahead >= MIN_MATCH) {
+            INSERT_STRING(s, s->strstart, hash_head);
+        }
+
+        /* Find the longest match, discarding those <= prev_length.
+         */
+        s->prev_length = s->match_length, s->prev_match = s->match_start;
+        s->match_length = MIN_MATCH-1;
+
+        if (hash_head != NIL && s->prev_length < s->max_lazy_match &&
+            s->strstart - hash_head <= MAX_DIST(s)) {
+            /* To simplify the code, we prevent matches with the string
+             * of window index 0 (in particular we have to avoid a match
+             * of the string with itself at the start of the input file).
+             */
+            s->match_length = longest_match (s, hash_head);
+            /* longest_match() sets match_start */
+
+            if (s->match_length <= 5 && (s->strategy == Z_FILTERED
+#if TOO_FAR <= 32767
+                || (s->match_length == MIN_MATCH &&
+                    s->strstart - s->match_start > TOO_FAR)
+#endif
+                )) {
+
+                /* If prev_match is also MIN_MATCH, match_start is garbage
+                 * but we will ignore the current match anyway.
+                 */
+                s->match_length = MIN_MATCH-1;
+            }
+        }
+        /* If there was a match at the previous step and the current
+         * match is not better, output the previous match:
+         */
+        if (s->prev_length >= MIN_MATCH && s->match_length <= s->prev_length) {
+            uInt max_insert = s->strstart + s->lookahead - MIN_MATCH;
+            /* Do not insert strings in hash table beyond this. */
+
+            check_match(s, s->strstart-1, s->prev_match, s->prev_length);
+
+            _tr_tally_dist(s, s->strstart -1 - s->prev_match,
+                           s->prev_length - MIN_MATCH, bflush);
+
+            /* Insert in hash table all strings up to the end of the match.
+             * strstart-1 and strstart are already inserted. If there is not
+             * enough lookahead, the last two strings are not inserted in
+             * the hash table.
+             */
+            s->lookahead -= s->prev_length-1;
+            s->prev_length -= 2;
+            do {
+                if (++s->strstart <= max_insert) {
+                    INSERT_STRING(s, s->strstart, hash_head);
+                }
+            } while (--s->prev_length != 0);
+            s->match_available = 0;
+            s->match_length = MIN_MATCH-1;
+            s->strstart++;
+
+            if (bflush) FLUSH_BLOCK(s, 0);
+
+        } else if (s->match_available) {
+            /* If there was no match at the previous position, output a
+             * single literal. If there was a match but the current match
+             * is longer, truncate the previous match to a single literal.
+             */
+            Tracevv((stderr,"%c", s->window[s->strstart-1]));
+            _tr_tally_lit(s, s->window[s->strstart-1], bflush);
+            if (bflush) {
+                FLUSH_BLOCK_ONLY(s, 0);
+            }
+            s->strstart++;
+            s->lookahead--;
+            if (s->strm->avail_out == 0) return need_more;
+        } else {
+            /* There is no previous match to compare with, wait for
+             * the next step to decide.
+             */
+            s->match_available = 1;
+            s->strstart++;
+            s->lookahead--;
+        }
+    }
+    Assert (flush != Z_NO_FLUSH, "no flush?");
+    if (s->match_available) {
+        Tracevv((stderr,"%c", s->window[s->strstart-1]));
+        _tr_tally_lit(s, s->window[s->strstart-1], bflush);
+        s->match_available = 0;
+    }
+    s->insert = s->strstart < MIN_MATCH-1 ? s->strstart : MIN_MATCH-1;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->last_lit)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
+#endif /* FASTEST */
+
+/* ===========================================================================
+ * For Z_RLE, simply look for runs of bytes, generate matches only of distance
+ * one.  Do not maintain a hash table.  (It will be regenerated if this run of
+ * deflate switches away from Z_RLE.)
+ */
+local block_state deflate_rle(s, flush)
+    deflate_state *s;
+    int flush;
+{
+    int bflush;             /* set if current block must be flushed */
+    uInt prev;              /* byte at distance one to match */
+    Bytef *scan, *strend;   /* scan goes up to strend for length of run */
+
+    for (;;) {
+        /* Make sure that we always have enough lookahead, except
+         * at the end of the input file. We need MAX_MATCH bytes
+         * for the longest run, plus one for the unrolled loop.
+         */
+        if (s->lookahead <= MAX_MATCH) {
+            fill_window(s);
+            if (s->lookahead <= MAX_MATCH && flush == Z_NO_FLUSH) {
+                return need_more;
+            }
+            if (s->lookahead == 0) break; /* flush the current block */
+        }
+
+        /* See how many times the previous byte repeats */
+        s->match_length = 0;
+        if (s->lookahead >= MIN_MATCH && s->strstart > 0) {
+            scan = s->window + s->strstart - 1;
+            prev = *scan;
+            if (prev == *++scan && prev == *++scan && prev == *++scan) {
+                strend = s->window + s->strstart + MAX_MATCH;
+                do {
+                } while (prev == *++scan && prev == *++scan &&
+                         prev == *++scan && prev == *++scan &&
+                         prev == *++scan && prev == *++scan &&
+                         prev == *++scan && prev == *++scan &&
+                         scan < strend);
+                s->match_length = MAX_MATCH - (uInt)(strend - scan);
+                if (s->match_length > s->lookahead)
+                    s->match_length = s->lookahead;
+            }
+            Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan");
+        }
+
+        /* Emit match if have run of MIN_MATCH or longer, else emit literal */
+        if (s->match_length >= MIN_MATCH) {
+            check_match(s, s->strstart, s->strstart - 1, s->match_length);
+
+            _tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
+
+            s->lookahead -= s->match_length;
+            s->strstart += s->match_length;
+            s->match_length = 0;
+        } else {
+            /* No match, output a literal byte */
+            Tracevv((stderr,"%c", s->window[s->strstart]));
+            _tr_tally_lit (s, s->window[s->strstart], bflush);
+            s->lookahead--;
+            s->strstart++;
+        }
+        if (bflush) FLUSH_BLOCK(s, 0);
+    }
+    s->insert = 0;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->last_lit)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
+
+/* ===========================================================================
+ * For Z_HUFFMAN_ONLY, do not look for matches.  Do not maintain a hash table.
+ * (It will be regenerated if this run of deflate switches away from Huffman.)
+ */
+local block_state deflate_huff(s, flush)
+    deflate_state *s;
+    int flush;
+{
+    int bflush;             /* set if current block must be flushed */
+
+    for (;;) {
+        /* Make sure that we have a literal to write. */
+        if (s->lookahead == 0) {
+            fill_window(s);
+            if (s->lookahead == 0) {
+                if (flush == Z_NO_FLUSH)
+                    return need_more;
+                break;      /* flush the current block */
+            }
+        }
+
+        /* Output a literal byte */
+        s->match_length = 0;
+        Tracevv((stderr,"%c", s->window[s->strstart]));
+        _tr_tally_lit (s, s->window[s->strstart], bflush);
+        s->lookahead--;
+        s->strstart++;
+        if (bflush) FLUSH_BLOCK(s, 0);
+    }
+    s->insert = 0;
+    if (flush == Z_FINISH) {
+        FLUSH_BLOCK(s, 1);
+        return finish_done;
+    }
+    if (s->last_lit)
+        FLUSH_BLOCK(s, 0);
+    return block_done;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/deflate.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/deflate.h
new file mode 100644
index 000000000..23ecdd312
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/deflate.h
@@ -0,0 +1,349 @@
+/* deflate.h -- internal compression state
+ * Copyright (C) 1995-2016 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id$ */
+
+#ifndef DEFLATE_H
+#define DEFLATE_H
+
+#include "zutil.h"
+
+/* define NO_GZIP when compiling if you want to disable gzip header and
+   trailer creation by deflate().  NO_GZIP would be used to avoid linking in
+   the crc code when it is not needed.  For shared libraries, gzip encoding
+   should be left enabled. */
+#ifndef NO_GZIP
+#  define GZIP
+#endif
+
+/* ===========================================================================
+ * Internal compression state.
+ */
+
+#define LENGTH_CODES 29
+/* number of length codes, not counting the special END_BLOCK code */
+
+#define LITERALS  256
+/* number of literal bytes 0..255 */
+
+#define L_CODES (LITERALS+1+LENGTH_CODES)
+/* number of Literal or Length codes, including the END_BLOCK code */
+
+#define D_CODES   30
+/* number of distance codes */
+
+#define BL_CODES  19
+/* number of codes used to transfer the bit lengths */
+
+#define HEAP_SIZE (2*L_CODES+1)
+/* maximum heap size */
+
+#define MAX_BITS 15
+/* All codes must not exceed MAX_BITS bits */
+
+#define Buf_size 16
+/* size of bit buffer in bi_buf */
+
+#define INIT_STATE    42    /* zlib header -> BUSY_STATE */
+#ifdef GZIP
+#  define GZIP_STATE  57    /* gzip header -> BUSY_STATE | EXTRA_STATE */
+#endif
+#define EXTRA_STATE   69    /* gzip extra block -> NAME_STATE */
+#define NAME_STATE    73    /* gzip file name -> COMMENT_STATE */
+#define COMMENT_STATE 91    /* gzip comment -> HCRC_STATE */
+#define HCRC_STATE   103    /* gzip header CRC -> BUSY_STATE */
+#define BUSY_STATE   113    /* deflate -> FINISH_STATE */
+#define FINISH_STATE 666    /* stream complete */
+/* Stream status */
+
+
+/* Data structure describing a single value and its code string. */
+typedef struct ct_data_s {
+    union {
+        ush  freq;       /* frequency count */
+        ush  code;       /* bit string */
+    } fc;
+    union {
+        ush  dad;        /* father node in Huffman tree */
+        ush  len;        /* length of bit string */
+    } dl;
+} FAR ct_data;
+
+#define Freq fc.freq
+#define Code fc.code
+#define Dad  dl.dad
+#define Len  dl.len
+
+typedef struct static_tree_desc_s  static_tree_desc;
+
+typedef struct tree_desc_s {
+    ct_data *dyn_tree;           /* the dynamic tree */
+    int     max_code;            /* largest code with non zero frequency */
+    const static_tree_desc *stat_desc;  /* the corresponding static tree */
+} FAR tree_desc;
+
+typedef ush Pos;
+typedef Pos FAR Posf;
+typedef unsigned IPos;
+
+/* A Pos is an index in the character window. We use short instead of int to
+ * save space in the various tables. IPos is used only for parameter passing.
+ */
+
+typedef struct internal_state {
+    z_streamp strm;      /* pointer back to this zlib stream */
+    int   status;        /* as the name implies */
+    Bytef *pending_buf;  /* output still pending */
+    ulg   pending_buf_size; /* size of pending_buf */
+    Bytef *pending_out;  /* next pending byte to output to the stream */
+    ulg   pending;       /* nb of bytes in the pending buffer */
+    int   wrap;          /* bit 0 true for zlib, bit 1 true for gzip */
+    gz_headerp  gzhead;  /* gzip header information to write */
+    ulg   gzindex;       /* where in extra, name, or comment */
+    Byte  method;        /* can only be DEFLATED */
+    int   last_flush;    /* value of flush param for previous deflate call */
+
+                /* used by deflate.c: */
+
+    uInt  w_size;        /* LZ77 window size (32K by default) */
+    uInt  w_bits;        /* log2(w_size)  (8..16) */
+    uInt  w_mask;        /* w_size - 1 */
+
+    Bytef *window;
+    /* Sliding window. Input bytes are read into the second half of the window,
+     * and move to the first half later to keep a dictionary of at least wSize
+     * bytes. With this organization, matches are limited to a distance of
+     * wSize-MAX_MATCH bytes, but this ensures that IO is always
+     * performed with a length multiple of the block size. Also, it limits
+     * the window size to 64K, which is quite useful on MSDOS.
+     * To do: use the user input buffer as sliding window.
+     */
+
+    ulg window_size;
+    /* Actual size of window: 2*wSize, except when the user input buffer
+     * is directly used as sliding window.
+     */
+
+    Posf *prev;
+    /* Link to older string with same hash index. To limit the size of this
+     * array to 64K, this link is maintained only for the last 32K strings.
+     * An index in this array is thus a window index modulo 32K.
+     */
+
+    Posf *head; /* Heads of the hash chains or NIL. */
+
+    uInt  ins_h;          /* hash index of string to be inserted */
+    uInt  hash_size;      /* number of elements in hash table */
+    uInt  hash_bits;      /* log2(hash_size) */
+    uInt  hash_mask;      /* hash_size-1 */
+
+    uInt  hash_shift;
+    /* Number of bits by which ins_h must be shifted at each input
+     * step. It must be such that after MIN_MATCH steps, the oldest
+     * byte no longer takes part in the hash key, that is:
+     *   hash_shift * MIN_MATCH >= hash_bits
+     */
+
+    long block_start;
+    /* Window position at the beginning of the current output block. Gets
+     * negative when the window is moved backwards.
+     */
+
+    uInt match_length;           /* length of best match */
+    IPos prev_match;             /* previous match */
+    int match_available;         /* set if previous match exists */
+    uInt strstart;               /* start of string to insert */
+    uInt match_start;            /* start of matching string */
+    uInt lookahead;              /* number of valid bytes ahead in window */
+
+    uInt prev_length;
+    /* Length of the best match at previous step. Matches not greater than this
+     * are discarded. This is used in the lazy match evaluation.
+     */
+
+    uInt max_chain_length;
+    /* To speed up deflation, hash chains are never searched beyond this
+     * length.  A higher limit improves compression ratio but degrades the
+     * speed.
+     */
+
+    uInt max_lazy_match;
+    /* Attempt to find a better match only when the current match is strictly
+     * smaller than this value. This mechanism is used only for compression
+     * levels >= 4.
+     */
+#   define max_insert_length  max_lazy_match
+    /* Insert new strings in the hash table only if the match length is not
+     * greater than this length. This saves time but degrades compression.
+     * max_insert_length is used only for compression levels <= 3.
+     */
+
+    int level;    /* compression level (1..9) */
+    int strategy; /* favor or force Huffman coding*/
+
+    uInt good_match;
+    /* Use a faster search when the previous match is longer than this */
+
+    int nice_match; /* Stop searching when current match exceeds this */
+
+                /* used by trees.c: */
+    /* Didn't use ct_data typedef below to suppress compiler warning */
+    struct ct_data_s dyn_ltree[HEAP_SIZE];   /* literal and length tree */
+    struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */
+    struct ct_data_s bl_tree[2*BL_CODES+1];  /* Huffman tree for bit lengths */
+
+    struct tree_desc_s l_desc;               /* desc. for literal tree */
+    struct tree_desc_s d_desc;               /* desc. for distance tree */
+    struct tree_desc_s bl_desc;              /* desc. for bit length tree */
+
+    ush bl_count[MAX_BITS+1];
+    /* number of codes at each bit length for an optimal tree */
+
+    int heap[2*L_CODES+1];      /* heap used to build the Huffman trees */
+    int heap_len;               /* number of elements in the heap */
+    int heap_max;               /* element of largest frequency */
+    /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
+     * The same heap array is used to build all trees.
+     */
+
+    uch depth[2*L_CODES+1];
+    /* Depth of each subtree used as tie breaker for trees of equal frequency
+     */
+
+    uchf *l_buf;          /* buffer for literals or lengths */
+
+    uInt  lit_bufsize;
+    /* Size of match buffer for literals/lengths.  There are 4 reasons for
+     * limiting lit_bufsize to 64K:
+     *   - frequencies can be kept in 16 bit counters
+     *   - if compression is not successful for the first block, all input
+     *     data is still in the window so we can still emit a stored block even
+     *     when input comes from standard input.  (This can also be done for
+     *     all blocks if lit_bufsize is not greater than 32K.)
+     *   - if compression is not successful for a file smaller than 64K, we can
+     *     even emit a stored file instead of a stored block (saving 5 bytes).
+     *     This is applicable only for zip (not gzip or zlib).
+     *   - creating new Huffman trees less frequently may not provide fast
+     *     adaptation to changes in the input data statistics. (Take for
+     *     example a binary file with poorly compressible code followed by
+     *     a highly compressible string table.) Smaller buffer sizes give
+     *     fast adaptation but have of course the overhead of transmitting
+     *     trees more frequently.
+     *   - I can't count above 4
+     */
+
+    uInt last_lit;      /* running index in l_buf */
+
+    ushf *d_buf;
+    /* Buffer for distances. To simplify the code, d_buf and l_buf have
+     * the same number of elements. To use different lengths, an extra flag
+     * array would be necessary.
+     */
+
+    ulg opt_len;        /* bit length of current block with optimal trees */
+    ulg static_len;     /* bit length of current block with static trees */
+    uInt matches;       /* number of string matches in current block */
+    uInt insert;        /* bytes at end of window left to insert */
+
+#ifdef ZLIB_DEBUG
+    ulg compressed_len; /* total bit length of compressed file mod 2^32 */
+    ulg bits_sent;      /* bit length of compressed data sent mod 2^32 */
+#endif
+
+    ush bi_buf;
+    /* Output buffer. bits are inserted starting at the bottom (least
+     * significant bits).
+     */
+    int bi_valid;
+    /* Number of valid bits in bi_buf.  All bits above the last valid bit
+     * are always zero.
+     */
+
+    ulg high_water;
+    /* High water mark offset in window for initialized bytes -- bytes above
+     * this are set to zero in order to avoid memory check warnings when
+     * longest match routines access bytes past the input.  This is then
+     * updated to the new high water mark.
+     */
+
+} FAR deflate_state;
+
+/* Output a byte on the stream.
+ * IN assertion: there is enough room in pending_buf.
+ */
+#define put_byte(s, c) {s->pending_buf[s->pending++] = (Bytef)(c);}
+
+
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+/* Minimum amount of lookahead, except at the end of the input file.
+ * See deflate.c for comments about the MIN_MATCH+1.
+ */
+
+#define MAX_DIST(s)  ((s)->w_size-MIN_LOOKAHEAD)
+/* In order to simplify the code, particularly on 16 bit machines, match
+ * distances are limited to MAX_DIST instead of WSIZE.
+ */
+
+#define WIN_INIT MAX_MATCH
+/* Number of bytes after end of data in window to initialize in order to avoid
+   memory checker errors from longest match routines */
+
+        /* in trees.c */
+void ZLIB_INTERNAL _tr_init OF((deflate_state *s));
+int ZLIB_INTERNAL _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc));
+void ZLIB_INTERNAL _tr_flush_block OF((deflate_state *s, charf *buf,
+                        ulg stored_len, int last));
+void ZLIB_INTERNAL _tr_flush_bits OF((deflate_state *s));
+void ZLIB_INTERNAL _tr_align OF((deflate_state *s));
+void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf,
+                        ulg stored_len, int last));
+
+#define d_code(dist) \
+   ((dist) < 256 ? _dist_code[dist] : _dist_code[256+((dist)>>7)])
+/* Mapping from a distance to a distance code. dist is the distance - 1 and
+ * must not have side effects. _dist_code[256] and _dist_code[257] are never
+ * used.
+ */
+
+#ifndef ZLIB_DEBUG
+/* Inline versions of _tr_tally for speed: */
+
+#if defined(GEN_TREES_H) || !defined(STDC)
+  extern uch ZLIB_INTERNAL _length_code[];
+  extern uch ZLIB_INTERNAL _dist_code[];
+#else
+  extern const uch ZLIB_INTERNAL _length_code[];
+  extern const uch ZLIB_INTERNAL _dist_code[];
+#endif
+
+# define _tr_tally_lit(s, c, flush) \
+  { uch cc = (c); \
+    s->d_buf[s->last_lit] = 0; \
+    s->l_buf[s->last_lit++] = cc; \
+    s->dyn_ltree[cc].Freq++; \
+    flush = (s->last_lit == s->lit_bufsize-1); \
+   }
+# define _tr_tally_dist(s, distance, length, flush) \
+  { uch len = (uch)(length); \
+    ush dist = (ush)(distance); \
+    s->d_buf[s->last_lit] = dist; \
+    s->l_buf[s->last_lit++] = len; \
+    dist--; \
+    s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \
+    s->dyn_dtree[d_code(dist)].Freq++; \
+    flush = (s->last_lit == s->lit_bufsize-1); \
+  }
+#else
+# define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c)
+# define _tr_tally_dist(s, distance, length, flush) \
+              flush = _tr_tally(s, distance, length)
+#endif
+
+#endif /* DEFLATE_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/README.examples b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/README.examples
new file mode 100644
index 000000000..56a31714e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/README.examples
@@ -0,0 +1,49 @@
+This directory contains examples of the use of zlib and other relevant
+programs and documentation.
+
+enough.c
+    calculation and justification of ENOUGH parameter in inftrees.h
+    - calculates the maximum table space used in inflate tree
+      construction over all possible Huffman codes
+
+fitblk.c
+    compress just enough input to nearly fill a requested output size
+    - zlib isn't designed to do this, but fitblk does it anyway
+
+gun.c
+    uncompress a gzip file
+    - illustrates the use of inflateBack() for high speed file-to-file
+      decompression using call-back functions
+    - is approximately twice as fast as gzip -d
+    - also provides Unix uncompress functionality, again twice as fast
+
+gzappend.c
+    append to a gzip file
+    - illustrates the use of the Z_BLOCK flush parameter for inflate()
+    - illustrates the use of deflatePrime() to start at any bit
+
+gzjoin.c
+    join gzip files without recalculating the crc or recompressing
+    - illustrates the use of the Z_BLOCK flush parameter for inflate()
+    - illustrates the use of crc32_combine()
+
+gzlog.c
+gzlog.h
+    efficiently and robustly maintain a message log file in gzip format
+    - illustrates use of raw deflate, Z_PARTIAL_FLUSH, deflatePrime(),
+      and deflateSetDictionary()
+    - illustrates use of a gzip header extra field
+
+zlib_how.html
+    painfully comprehensive description of zpipe.c (see below)
+    - describes in excruciating detail the use of deflate() and inflate()
+
+zpipe.c
+    reads and writes zlib streams from stdin to stdout
+    - illustrates the proper use of deflate() and inflate()
+    - deeply commented in zlib_how.html (see above)
+
+zran.c
+    index a zlib or gzip stream and randomly access it
+    - illustrates the use of Z_BLOCK, inflatePrime(), and
+      inflateSetDictionary() to provide random access
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/enough.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/enough.c
new file mode 100644
index 000000000..b99114430
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/enough.c
@@ -0,0 +1,572 @@
+/* enough.c -- determine the maximum size of inflate's Huffman code tables over
+ * all possible valid and complete Huffman codes, subject to a length limit.
+ * Copyright (C) 2007, 2008, 2012 Mark Adler
+ * Version 1.4  18 August 2012  Mark Adler
+ */
+
+/* Version history:
+   1.0   3 Jan 2007  First version (derived from codecount.c version 1.4)
+   1.1   4 Jan 2007  Use faster incremental table usage computation
+                     Prune examine() search on previously visited states
+   1.2   5 Jan 2007  Comments clean up
+                     As inflate does, decrease root for short codes
+                     Refuse cases where inflate would increase root
+   1.3  17 Feb 2008  Add argument for initial root table size
+                     Fix bug for initial root table size == max - 1
+                     Use a macro to compute the history index
+   1.4  18 Aug 2012  Avoid shifts more than bits in type (caused endless loop!)
+                     Clean up comparisons of different types
+                     Clean up code indentation
+ */
+
+/*
+   Examine all possible Huffman codes for a given number of symbols and a
+   maximum code length in bits to determine the maximum table size for zilb's
+   inflate.  Only complete Huffman codes are counted.
+
+   Two codes are considered distinct if the vectors of the number of codes per
+   length are not identical.  So permutations of the symbol assignments result
+   in the same code for the counting, as do permutations of the assignments of
+   the bit values to the codes (i.e. only canonical codes are counted).
+
+   We build a code from shorter to longer lengths, determining how many symbols
+   are coded at each length.  At each step, we have how many symbols remain to
+   be coded, what the last code length used was, and how many bit patterns of
+   that length remain unused. Then we add one to the code length and double the
+   number of unused patterns to graduate to the next code length.  We then
+   assign all portions of the remaining symbols to that code length that
+   preserve the properties of a correct and eventually complete code.  Those
+   properties are: we cannot use more bit patterns than are available; and when
+   all the symbols are used, there are exactly zero possible bit patterns
+   remaining.
+
+   The inflate Huffman decoding algorithm uses two-level lookup tables for
+   speed.  There is a single first-level table to decode codes up to root bits
+   in length (root == 9 in the current inflate implementation).  The table
+   has 1 << root entries and is indexed by the next root bits of input.  Codes
+   shorter than root bits have replicated table entries, so that the correct
+   entry is pointed to regardless of the bits that follow the short code.  If
+   the code is longer than root bits, then the table entry points to a second-
+   level table.  The size of that table is determined by the longest code with
+   that root-bit prefix.  If that longest code has length len, then the table
+   has size 1 << (len - root), to index the remaining bits in that set of
+   codes.  Each subsequent root-bit prefix then has its own sub-table.  The
+   total number of table entries required by the code is calculated
+   incrementally as the number of codes at each bit length is populated.  When
+   all of the codes are shorter than root bits, then root is reduced to the
+   longest code length, resulting in a single, smaller, one-level table.
+
+   The inflate algorithm also provides for small values of root (relative to
+   the log2 of the number of symbols), where the shortest code has more bits
+   than root.  In that case, root is increased to the length of the shortest
+   code.  This program, by design, does not handle that case, so it is verified
+   that the number of symbols is less than 2^(root + 1).
+
+   In order to speed up the examination (by about ten orders of magnitude for
+   the default arguments), the intermediate states in the build-up of a code
+   are remembered and previously visited branches are pruned.  The memory
+   required for this will increase rapidly with the total number of symbols and
+   the maximum code length in bits.  However this is a very small price to pay
+   for the vast speedup.
+
+   First, all of the possible Huffman codes are counted, and reachable
+   intermediate states are noted by a non-zero count in a saved-results array.
+   Second, the intermediate states that lead to (root + 1) bit or longer codes
+   are used to look at all sub-codes from those junctures for their inflate
+   memory usage.  (The amount of memory used is not affected by the number of
+   codes of root bits or less in length.)  Third, the visited states in the
+   construction of those sub-codes and the associated calculation of the table
+   size is recalled in order to avoid recalculating from the same juncture.
+   Beginning the code examination at (root + 1) bit codes, which is enabled by
+   identifying the reachable nodes, accounts for about six of the orders of
+   magnitude of improvement for the default arguments.  About another four
+   orders of magnitude come from not revisiting previous states.  Out of
+   approximately 2x10^16 possible Huffman codes, only about 2x10^6 sub-codes
+   need to be examined to cover all of the possible table memory usage cases
+   for the default arguments of 286 symbols limited to 15-bit codes.
+
+   Note that an unsigned long long type is used for counting.  It is quite easy
+   to exceed the capacity of an eight-byte integer with a large number of
+   symbols and a large maximum code length, so multiple-precision arithmetic
+   would need to replace the unsigned long long arithmetic in that case.  This
+   program will abort if an overflow occurs.  The big_t type identifies where
+   the counting takes place.
+
+   An unsigned long long type is also used for calculating the number of
+   possible codes remaining at the maximum length.  This limits the maximum
+   code length to the number of bits in a long long minus the number of bits
+   needed to represent the symbols in a flat code.  The code_t type identifies
+   where the bit pattern counting takes place.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#define local static
+
+/* special data types */
+typedef unsigned long long big_t;   /* type for code counting */
+typedef unsigned long long code_t;  /* type for bit pattern counting */
+struct tab {                        /* type for been here check */
+    size_t len;         /* length of bit vector in char's */
+    char *vec;          /* allocated bit vector */
+};
+
+/* The array for saving results, num[], is indexed with this triplet:
+
+      syms: number of symbols remaining to code
+      left: number of available bit patterns at length len
+      len: number of bits in the codes currently being assigned
+
+   Those indices are constrained thusly when saving results:
+
+      syms: 3..totsym (totsym == total symbols to code)
+      left: 2..syms - 1, but only the evens (so syms == 8 -> 2, 4, 6)
+      len: 1..max - 1 (max == maximum code length in bits)
+
+   syms == 2 is not saved since that immediately leads to a single code.  left
+   must be even, since it represents the number of available bit patterns at
+   the current length, which is double the number at the previous length.
+   left ends at syms-1 since left == syms immediately results in a single code.
+   (left > sym is not allowed since that would result in an incomplete code.)
+   len is less than max, since the code completes immediately when len == max.
+
+   The offset into the array is calculated for the three indices with the
+   first one (syms) being outermost, and the last one (len) being innermost.
+   We build the array with length max-1 lists for the len index, with syms-3
+   of those for each symbol.  There are totsym-2 of those, with each one
+   varying in length as a function of sym.  See the calculation of index in
+   count() for the index, and the calculation of size in main() for the size
+   of the array.
+
+   For the deflate example of 286 symbols limited to 15-bit codes, the array
+   has 284,284 entries, taking up 2.17 MB for an 8-byte big_t.  More than
+   half of the space allocated for saved results is actually used -- not all
+   possible triplets are reached in the generation of valid Huffman codes.
+ */
+
+/* The array for tracking visited states, done[], is itself indexed identically
+   to the num[] array as described above for the (syms, left, len) triplet.
+   Each element in the array is further indexed by the (mem, rem) doublet,
+   where mem is the amount of inflate table space used so far, and rem is the
+   remaining unused entries in the current inflate sub-table.  Each indexed
+   element is simply one bit indicating whether the state has been visited or
+   not.  Since the ranges for mem and rem are not known a priori, each bit
+   vector is of a variable size, and grows as needed to accommodate the visited
+   states.  mem and rem are used to calculate a single index in a triangular
+   array.  Since the range of mem is expected in the default case to be about
+   ten times larger than the range of rem, the array is skewed to reduce the
+   memory usage, with eight times the range for mem than for rem.  See the
+   calculations for offset and bit in beenhere() for the details.
+
+   For the deflate example of 286 symbols limited to 15-bit codes, the bit
+   vectors grow to total approximately 21 MB, in addition to the 4.3 MB done[]
+   array itself.
+ */
+
+/* Globals to avoid propagating constants or constant pointers recursively */
+local int max;          /* maximum allowed bit length for the codes */
+local int root;         /* size of base code table in bits */
+local int large;        /* largest code table so far */
+local size_t size;      /* number of elements in num and done */
+local int *code;        /* number of symbols assigned to each bit length */
+local big_t *num;       /* saved results array for code counting */
+local struct tab *done; /* states already evaluated array */
+
+/* Index function for num[] and done[] */
+#define INDEX(i,j,k) (((size_t)((i-1)>>1)*((i-2)>>1)+(j>>1)-1)*(max-1)+k-1)
+
+/* Free allocated space.  Uses globals code, num, and done. */
+local void cleanup(void)
+{
+    size_t n;
+
+    if (done != NULL) {
+        for (n = 0; n < size; n++)
+            if (done[n].len)
+                free(done[n].vec);
+        free(done);
+    }
+    if (num != NULL)
+        free(num);
+    if (code != NULL)
+        free(code);
+}
+
+/* Return the number of possible Huffman codes using bit patterns of lengths
+   len through max inclusive, coding syms symbols, with left bit patterns of
+   length len unused -- return -1 if there is an overflow in the counting.
+   Keep a record of previous results in num to prevent repeating the same
+   calculation.  Uses the globals max and num. */
+local big_t count(int syms, int len, int left)
+{
+    big_t sum;          /* number of possible codes from this juncture */
+    big_t got;          /* value returned from count() */
+    int least;          /* least number of syms to use at this juncture */
+    int most;           /* most number of syms to use at this juncture */
+    int use;            /* number of bit patterns to use in next call */
+    size_t index;       /* index of this case in *num */
+
+    /* see if only one possible code */
+    if (syms == left)
+        return 1;
+
+    /* note and verify the expected state */
+    assert(syms > left && left > 0 && len < max);
+
+    /* see if we've done this one already */
+    index = INDEX(syms, left, len);
+    got = num[index];
+    if (got)
+        return got;         /* we have -- return the saved result */
+
+    /* we need to use at least this many bit patterns so that the code won't be
+       incomplete at the next length (more bit patterns than symbols) */
+    least = (left << 1) - syms;
+    if (least < 0)
+        least = 0;
+
+    /* we can use at most this many bit patterns, lest there not be enough
+       available for the remaining symbols at the maximum length (if there were
+       no limit to the code length, this would become: most = left - 1) */
+    most = (((code_t)left << (max - len)) - syms) /
+            (((code_t)1 << (max - len)) - 1);
+
+    /* count all possible codes from this juncture and add them up */
+    sum = 0;
+    for (use = least; use <= most; use++) {
+        got = count(syms - use, len + 1, (left - use) << 1);
+        sum += got;
+        if (got == (big_t)0 - 1 || sum < got)   /* overflow */
+            return (big_t)0 - 1;
+    }
+
+    /* verify that all recursive calls are productive */
+    assert(sum != 0);
+
+    /* save the result and return it */
+    num[index] = sum;
+    return sum;
+}
+
+/* Return true if we've been here before, set to true if not.  Set a bit in a
+   bit vector to indicate visiting this state.  Each (syms,len,left) state
+   has a variable size bit vector indexed by (mem,rem).  The bit vector is
+   lengthened if needed to allow setting the (mem,rem) bit. */
+local int beenhere(int syms, int len, int left, int mem, int rem)
+{
+    size_t index;       /* index for this state's bit vector */
+    size_t offset;      /* offset in this state's bit vector */
+    int bit;            /* mask for this state's bit */
+    size_t length;      /* length of the bit vector in bytes */
+    char *vector;       /* new or enlarged bit vector */
+
+    /* point to vector for (syms,left,len), bit in vector for (mem,rem) */
+    index = INDEX(syms, left, len);
+    mem -= 1 << root;
+    offset = (mem >> 3) + rem;
+    offset = ((offset * (offset + 1)) >> 1) + rem;
+    bit = 1 << (mem & 7);
+
+    /* see if we've been here */
+    length = done[index].len;
+    if (offset < length && (done[index].vec[offset] & bit) != 0)
+        return 1;       /* done this! */
+
+    /* we haven't been here before -- set the bit to show we have now */
+
+    /* see if we need to lengthen the vector in order to set the bit */
+    if (length <= offset) {
+        /* if we have one already, enlarge it, zero out the appended space */
+        if (length) {
+            do {
+                length <<= 1;
+            } while (length <= offset);
+            vector = realloc(done[index].vec, length);
+            if (vector != NULL)
+                memset(vector + done[index].len, 0, length - done[index].len);
+        }
+
+        /* otherwise we need to make a new vector and zero it out */
+        else {
+            length = 1 << (len - root);
+            while (length <= offset)
+                length <<= 1;
+            vector = calloc(length, sizeof(char));
+        }
+
+        /* in either case, bail if we can't get the memory */
+        if (vector == NULL) {
+            fputs("abort: unable to allocate enough memory\n", stderr);
+            cleanup();
+            exit(1);
+        }
+
+        /* install the new vector */
+        done[index].len = length;
+        done[index].vec = vector;
+    }
+
+    /* set the bit */
+    done[index].vec[offset] |= bit;
+    return 0;
+}
+
+/* Examine all possible codes from the given node (syms, len, left).  Compute
+   the amount of memory required to build inflate's decoding tables, where the
+   number of code structures used so far is mem, and the number remaining in
+   the current sub-table is rem.  Uses the globals max, code, root, large, and
+   done. */
+local void examine(int syms, int len, int left, int mem, int rem)
+{
+    int least;          /* least number of syms to use at this juncture */
+    int most;           /* most number of syms to use at this juncture */
+    int use;            /* number of bit patterns to use in next call */
+
+    /* see if we have a complete code */
+    if (syms == left) {
+        /* set the last code entry */
+        code[len] = left;
+
+        /* complete computation of memory used by this code */
+        while (rem < left) {
+            left -= rem;
+            rem = 1 << (len - root);
+            mem += rem;
+        }
+        assert(rem == left);
+
+        /* if this is a new maximum, show the entries used and the sub-code */
+        if (mem > large) {
+            large = mem;
+            printf("max %d: ", mem);
+            for (use = root + 1; use <= max; use++)
+                if (code[use])
+                    printf("%d[%d] ", code[use], use);
+            putchar('\n');
+            fflush(stdout);
+        }
+
+        /* remove entries as we drop back down in the recursion */
+        code[len] = 0;
+        return;
+    }
+
+    /* prune the tree if we can */
+    if (beenhere(syms, len, left, mem, rem))
+        return;
+
+    /* we need to use at least this many bit patterns so that the code won't be
+       incomplete at the next length (more bit patterns than symbols) */
+    least = (left << 1) - syms;
+    if (least < 0)
+        least = 0;
+
+    /* we can use at most this many bit patterns, lest there not be enough
+       available for the remaining symbols at the maximum length (if there were
+       no limit to the code length, this would become: most = left - 1) */
+    most = (((code_t)left << (max - len)) - syms) /
+            (((code_t)1 << (max - len)) - 1);
+
+    /* occupy least table spaces, creating new sub-tables as needed */
+    use = least;
+    while (rem < use) {
+        use -= rem;
+        rem = 1 << (len - root);
+        mem += rem;
+    }
+    rem -= use;
+
+    /* examine codes from here, updating table space as we go */
+    for (use = least; use <= most; use++) {
+        code[len] = use;
+        examine(syms - use, len + 1, (left - use) << 1,
+                mem + (rem ? 1 << (len - root) : 0), rem << 1);
+        if (rem == 0) {
+            rem = 1 << (len - root);
+            mem += rem;
+        }
+        rem--;
+    }
+
+    /* remove entries as we drop back down in the recursion */
+    code[len] = 0;
+}
+
+/* Look at all sub-codes starting with root + 1 bits.  Look at only the valid
+   intermediate code states (syms, left, len).  For each completed code,
+   calculate the amount of memory required by inflate to build the decoding
+   tables. Find the maximum amount of memory required and show the code that
+   requires that maximum.  Uses the globals max, root, and num. */
+local void enough(int syms)
+{
+    int n;              /* number of remaing symbols for this node */
+    int left;           /* number of unused bit patterns at this length */
+    size_t index;       /* index of this case in *num */
+
+    /* clear code */
+    for (n = 0; n <= max; n++)
+        code[n] = 0;
+
+    /* look at all (root + 1) bit and longer codes */
+    large = 1 << root;              /* base table */
+    if (root < max)                 /* otherwise, there's only a base table */
+        for (n = 3; n <= syms; n++)
+            for (left = 2; left < n; left += 2)
+            {
+                /* look at all reachable (root + 1) bit nodes, and the
+                   resulting codes (complete at root + 2 or more) */
+                index = INDEX(n, left, root + 1);
+                if (root + 1 < max && num[index])       /* reachable node */
+                    examine(n, root + 1, left, 1 << root, 0);
+
+                /* also look at root bit codes with completions at root + 1
+                   bits (not saved in num, since complete), just in case */
+                if (num[index - 1] && n <= left << 1)
+                    examine((n - left) << 1, root + 1, (n - left) << 1,
+                            1 << root, 0);
+            }
+
+    /* done */
+    printf("done: maximum of %d table entries\n", large);
+}
+
+/*
+   Examine and show the total number of possible Huffman codes for a given
+   maximum number of symbols, initial root table size, and maximum code length
+   in bits -- those are the command arguments in that order.  The default
+   values are 286, 9, and 15 respectively, for the deflate literal/length code.
+   The possible codes are counted for each number of coded symbols from two to
+   the maximum.  The counts for each of those and the total number of codes are
+   shown.  The maximum number of inflate table entires is then calculated
+   across all possible codes.  Each new maximum number of table entries and the
+   associated sub-code (starting at root + 1 == 10 bits) is shown.
+
+   To count and examine Huffman codes that are not length-limited, provide a
+   maximum length equal to the number of symbols minus one.
+
+   For the deflate literal/length code, use "enough".  For the deflate distance
+   code, use "enough 30 6".
+
+   This uses the %llu printf format to print big_t numbers, which assumes that
+   big_t is an unsigned long long.  If the big_t type is changed (for example
+   to a multiple precision type), the method of printing will also need to be
+   updated.
+ */
+int main(int argc, char **argv)
+{
+    int syms;           /* total number of symbols to code */
+    int n;              /* number of symbols to code for this run */
+    big_t got;          /* return value of count() */
+    big_t sum;          /* accumulated number of codes over n */
+    code_t word;        /* for counting bits in code_t */
+
+    /* set up globals for cleanup() */
+    code = NULL;
+    num = NULL;
+    done = NULL;
+
+    /* get arguments -- default to the deflate literal/length code */
+    syms = 286;
+    root = 9;
+    max = 15;
+    if (argc > 1) {
+        syms = atoi(argv[1]);
+        if (argc > 2) {
+            root = atoi(argv[2]);
+            if (argc > 3)
+                max = atoi(argv[3]);
+        }
+    }
+    if (argc > 4 || syms < 2 || root < 1 || max < 1) {
+        fputs("invalid arguments, need: [sym >= 2 [root >= 1 [max >= 1]]]\n",
+              stderr);
+        return 1;
+    }
+
+    /* if not restricting the code length, the longest is syms - 1 */
+    if (max > syms - 1)
+        max = syms - 1;
+
+    /* determine the number of bits in a code_t */
+    for (n = 0, word = 1; word; n++, word <<= 1)
+        ;
+
+    /* make sure that the calculation of most will not overflow */
+    if (max > n || (code_t)(syms - 2) >= (((code_t)0 - 1) >> (max - 1))) {
+        fputs("abort: code length too long for internal types\n", stderr);
+        return 1;
+    }
+
+    /* reject impossible code requests */
+    if ((code_t)(syms - 1) > ((code_t)1 << max) - 1) {
+        fprintf(stderr, "%d symbols cannot be coded in %d bits\n",
+                syms, max);
+        return 1;
+    }
+
+    /* allocate code vector */
+    code = calloc(max + 1, sizeof(int));
+    if (code == NULL) {
+        fputs("abort: unable to allocate enough memory\n", stderr);
+        return 1;
+    }
+
+    /* determine size of saved results array, checking for overflows,
+       allocate and clear the array (set all to zero with calloc()) */
+    if (syms == 2)              /* iff max == 1 */
+        num = NULL;             /* won't be saving any results */
+    else {
+        size = syms >> 1;
+        if (size > ((size_t)0 - 1) / (n = (syms - 1) >> 1) ||
+                (size *= n, size > ((size_t)0 - 1) / (n = max - 1)) ||
+                (size *= n, size > ((size_t)0 - 1) / sizeof(big_t)) ||
+                (num = calloc(size, sizeof(big_t))) == NULL) {
+            fputs("abort: unable to allocate enough memory\n", stderr);
+            cleanup();
+            return 1;
+        }
+    }
+
+    /* count possible codes for all numbers of symbols, add up counts */
+    sum = 0;
+    for (n = 2; n <= syms; n++) {
+        got = count(n, 1, 2);
+        sum += got;
+        if (got == (big_t)0 - 1 || sum < got) {     /* overflow */
+            fputs("abort: can't count that high!\n", stderr);
+            cleanup();
+            return 1;
+        }
+        printf("%llu %d-codes\n", got, n);
+    }
+    printf("%llu total codes for 2 to %d symbols", sum, syms);
+    if (max < syms - 1)
+        printf(" (%d-bit length limit)\n", max);
+    else
+        puts(" (no length limit)");
+
+    /* allocate and clear done array for beenhere() */
+    if (syms == 2)
+        done = NULL;
+    else if (size > ((size_t)0 - 1) / sizeof(struct tab) ||
+             (done = calloc(size, sizeof(struct tab))) == NULL) {
+        fputs("abort: unable to allocate enough memory\n", stderr);
+        cleanup();
+        return 1;
+    }
+
+    /* find and show maximum inflate table usage */
+    if (root > max)                 /* reduce root to max length */
+        root = max;
+    if ((code_t)syms < ((code_t)1 << (root + 1)))
+        enough(syms);
+    else
+        puts("cannot handle minimum code lengths > root");
+
+    /* done */
+    cleanup();
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/fitblk.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/fitblk.c
new file mode 100644
index 000000000..c61de5c99
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/fitblk.c
@@ -0,0 +1,233 @@
+/* fitblk.c: example of fitting compressed output to a specified size
+   Not copyrighted -- provided to the public domain
+   Version 1.1  25 November 2004  Mark Adler */
+
+/* Version history:
+   1.0  24 Nov 2004  First version
+   1.1  25 Nov 2004  Change deflateInit2() to deflateInit()
+                     Use fixed-size, stack-allocated raw buffers
+                     Simplify code moving compression to subroutines
+                     Use assert() for internal errors
+                     Add detailed description of approach
+ */
+
+/* Approach to just fitting a requested compressed size:
+
+   fitblk performs three compression passes on a portion of the input
+   data in order to determine how much of that input will compress to
+   nearly the requested output block size.  The first pass generates
+   enough deflate blocks to produce output to fill the requested
+   output size plus a specfied excess amount (see the EXCESS define
+   below).  The last deflate block may go quite a bit past that, but
+   is discarded.  The second pass decompresses and recompresses just
+   the compressed data that fit in the requested plus excess sized
+   buffer.  The deflate process is terminated after that amount of
+   input, which is less than the amount consumed on the first pass.
+   The last deflate block of the result will be of a comparable size
+   to the final product, so that the header for that deflate block and
+   the compression ratio for that block will be about the same as in
+   the final product.  The third compression pass decompresses the
+   result of the second step, but only the compressed data up to the
+   requested size minus an amount to allow the compressed stream to
+   complete (see the MARGIN define below).  That will result in a
+   final compressed stream whose length is less than or equal to the
+   requested size.  Assuming sufficient input and a requested size
+   greater than a few hundred bytes, the shortfall will typically be
+   less than ten bytes.
+
+   If the input is short enough that the first compression completes
+   before filling the requested output size, then that compressed
+   stream is return with no recompression.
+
+   EXCESS is chosen to be just greater than the shortfall seen in a
+   two pass approach similar to the above.  That shortfall is due to
+   the last deflate block compressing more efficiently with a smaller
+   header on the second pass.  EXCESS is set to be large enough so
+   that there is enough uncompressed data for the second pass to fill
+   out the requested size, and small enough so that the final deflate
+   block of the second pass will be close in size to the final deflate
+   block of the third and final pass.  MARGIN is chosen to be just
+   large enough to assure that the final compression has enough room
+   to complete in all cases.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "zlib.h"
+
+#define local static
+
+/* print nastygram and leave */
+local void quit(char *why)
+{
+    fprintf(stderr, "fitblk abort: %s\n", why);
+    exit(1);
+}
+
+#define RAWLEN 4096    /* intermediate uncompressed buffer size */
+
+/* compress from file to def until provided buffer is full or end of
+   input reached; return last deflate() return value, or Z_ERRNO if
+   there was read error on the file */
+local int partcompress(FILE *in, z_streamp def)
+{
+    int ret, flush;
+    unsigned char raw[RAWLEN];
+
+    flush = Z_NO_FLUSH;
+    do {
+        def->avail_in = fread(raw, 1, RAWLEN, in);
+        if (ferror(in))
+            return Z_ERRNO;
+        def->next_in = raw;
+        if (feof(in))
+            flush = Z_FINISH;
+        ret = deflate(def, flush);
+        assert(ret != Z_STREAM_ERROR);
+    } while (def->avail_out != 0 && flush == Z_NO_FLUSH);
+    return ret;
+}
+
+/* recompress from inf's input to def's output; the input for inf and
+   the output for def are set in those structures before calling;
+   return last deflate() return value, or Z_MEM_ERROR if inflate()
+   was not able to allocate enough memory when it needed to */
+local int recompress(z_streamp inf, z_streamp def)
+{
+    int ret, flush;
+    unsigned char raw[RAWLEN];
+
+    flush = Z_NO_FLUSH;
+    do {
+        /* decompress */
+        inf->avail_out = RAWLEN;
+        inf->next_out = raw;
+        ret = inflate(inf, Z_NO_FLUSH);
+        assert(ret != Z_STREAM_ERROR && ret != Z_DATA_ERROR &&
+               ret != Z_NEED_DICT);
+        if (ret == Z_MEM_ERROR)
+            return ret;
+
+        /* compress what was decompresed until done or no room */
+        def->avail_in = RAWLEN - inf->avail_out;
+        def->next_in = raw;
+        if (inf->avail_out != 0)
+            flush = Z_FINISH;
+        ret = deflate(def, flush);
+        assert(ret != Z_STREAM_ERROR);
+    } while (ret != Z_STREAM_END && def->avail_out != 0);
+    return ret;
+}
+
+#define EXCESS 256      /* empirically determined stream overage */
+#define MARGIN 8        /* amount to back off for completion */
+
+/* compress from stdin to fixed-size block on stdout */
+int main(int argc, char **argv)
+{
+    int ret;                /* return code */
+    unsigned size;          /* requested fixed output block size */
+    unsigned have;          /* bytes written by deflate() call */
+    unsigned char *blk;     /* intermediate and final stream */
+    unsigned char *tmp;     /* close to desired size stream */
+    z_stream def, inf;      /* zlib deflate and inflate states */
+
+    /* get requested output size */
+    if (argc != 2)
+        quit("need one argument: size of output block");
+    ret = strtol(argv[1], argv + 1, 10);
+    if (argv[1][0] != 0)
+        quit("argument must be a number");
+    if (ret < 8)            /* 8 is minimum zlib stream size */
+        quit("need positive size of 8 or greater");
+    size = (unsigned)ret;
+
+    /* allocate memory for buffers and compression engine */
+    blk = malloc(size + EXCESS);
+    def.zalloc = Z_NULL;
+    def.zfree = Z_NULL;
+    def.opaque = Z_NULL;
+    ret = deflateInit(&def, Z_DEFAULT_COMPRESSION);
+    if (ret != Z_OK || blk == NULL)
+        quit("out of memory");
+
+    /* compress from stdin until output full, or no more input */
+    def.avail_out = size + EXCESS;
+    def.next_out = blk;
+    ret = partcompress(stdin, &def);
+    if (ret == Z_ERRNO)
+        quit("error reading input");
+
+    /* if it all fit, then size was undersubscribed -- done! */
+    if (ret == Z_STREAM_END && def.avail_out >= EXCESS) {
+        /* write block to stdout */
+        have = size + EXCESS - def.avail_out;
+        if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
+            quit("error writing output");
+
+        /* clean up and print results to stderr */
+        ret = deflateEnd(&def);
+        assert(ret != Z_STREAM_ERROR);
+        free(blk);
+        fprintf(stderr,
+                "%u bytes unused out of %u requested (all input)\n",
+                size - have, size);
+        return 0;
+    }
+
+    /* it didn't all fit -- set up for recompression */
+    inf.zalloc = Z_NULL;
+    inf.zfree = Z_NULL;
+    inf.opaque = Z_NULL;
+    inf.avail_in = 0;
+    inf.next_in = Z_NULL;
+    ret = inflateInit(&inf);
+    tmp = malloc(size + EXCESS);
+    if (ret != Z_OK || tmp == NULL)
+        quit("out of memory");
+    ret = deflateReset(&def);
+    assert(ret != Z_STREAM_ERROR);
+
+    /* do first recompression close to the right amount */
+    inf.avail_in = size + EXCESS;
+    inf.next_in = blk;
+    def.avail_out = size + EXCESS;
+    def.next_out = tmp;
+    ret = recompress(&inf, &def);
+    if (ret == Z_MEM_ERROR)
+        quit("out of memory");
+
+    /* set up for next reocmpression */
+    ret = inflateReset(&inf);
+    assert(ret != Z_STREAM_ERROR);
+    ret = deflateReset(&def);
+    assert(ret != Z_STREAM_ERROR);
+
+    /* do second and final recompression (third compression) */
+    inf.avail_in = size - MARGIN;   /* assure stream will complete */
+    inf.next_in = tmp;
+    def.avail_out = size;
+    def.next_out = blk;
+    ret = recompress(&inf, &def);
+    if (ret == Z_MEM_ERROR)
+        quit("out of memory");
+    assert(ret == Z_STREAM_END);    /* otherwise MARGIN too small */
+
+    /* done -- write block to stdout */
+    have = size - def.avail_out;
+    if (fwrite(blk, 1, have, stdout) != have || ferror(stdout))
+        quit("error writing output");
+
+    /* clean up and print results to stderr */
+    free(tmp);
+    ret = inflateEnd(&inf);
+    assert(ret != Z_STREAM_ERROR);
+    ret = deflateEnd(&def);
+    assert(ret != Z_STREAM_ERROR);
+    free(blk);
+    fprintf(stderr,
+            "%u bytes unused out of %u requested (%lu input)\n",
+            size - have, size, def.total_in);
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gun.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gun.c
new file mode 100644
index 000000000..be44fa51f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gun.c
@@ -0,0 +1,702 @@
+/* gun.c -- simple gunzip to give an example of the use of inflateBack()
+ * Copyright (C) 2003, 2005, 2008, 2010, 2012 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+   Version 1.7  12 August 2012  Mark Adler */
+
+/* Version history:
+   1.0  16 Feb 2003  First version for testing of inflateBack()
+   1.1  21 Feb 2005  Decompress concatenated gzip streams
+                     Remove use of "this" variable (C++ keyword)
+                     Fix return value for in()
+                     Improve allocation failure checking
+                     Add typecasting for void * structures
+                     Add -h option for command version and usage
+                     Add a bunch of comments
+   1.2  20 Mar 2005  Add Unix compress (LZW) decompression
+                     Copy file attributes from input file to output file
+   1.3  12 Jun 2005  Add casts for error messages [Oberhumer]
+   1.4   8 Dec 2006  LZW decompression speed improvements
+   1.5   9 Feb 2008  Avoid warning in latest version of gcc
+   1.6  17 Jan 2010  Avoid signed/unsigned comparison warnings
+   1.7  12 Aug 2012  Update for z_const usage in zlib 1.2.8
+ */
+
+/*
+   gun [ -t ] [ name ... ]
+
+   decompresses the data in the named gzip files.  If no arguments are given,
+   gun will decompress from stdin to stdout.  The names must end in .gz, -gz,
+   .z, -z, _z, or .Z.  The uncompressed data will be written to a file name
+   with the suffix stripped.  On success, the original file is deleted.  On
+   failure, the output file is deleted.  For most failures, the command will
+   continue to process the remaining names on the command line.  A memory
+   allocation failure will abort the command.  If -t is specified, then the
+   listed files or stdin will be tested as gzip files for integrity (without
+   checking for a proper suffix), no output will be written, and no files
+   will be deleted.
+
+   Like gzip, gun allows concatenated gzip streams and will decompress them,
+   writing all of the uncompressed data to the output.  Unlike gzip, gun allows
+   an empty file on input, and will produce no error writing an empty output
+   file.
+
+   gun will also decompress files made by Unix compress, which uses LZW
+   compression.  These files are automatically detected by virtue of their
+   magic header bytes.  Since the end of Unix compress stream is marked by the
+   end-of-file, they cannot be concantenated.  If a Unix compress stream is
+   encountered in an input file, it is the last stream in that file.
+
+   Like gunzip and uncompress, the file attributes of the original compressed
+   file are maintained in the final uncompressed file, to the extent that the
+   user permissions allow it.
+
+   On my Mac OS X PowerPC G4, gun is almost twice as fast as gunzip (version
+   1.2.4) is on the same file, when gun is linked with zlib 1.2.2.  Also the
+   LZW decompression provided by gun is about twice as fast as the standard
+   Unix uncompress command.
+ */
+
+/* external functions and related types and constants */
+#include <stdio.h>          /* fprintf() */
+#include <stdlib.h>         /* malloc(), free() */
+#include <string.h>         /* strerror(), strcmp(), strlen(), memcpy() */
+#include <errno.h>          /* errno */
+#include <fcntl.h>          /* open() */
+#include <unistd.h>         /* read(), write(), close(), chown(), unlink() */
+#include <sys/types.h>
+#include <sys/stat.h>       /* stat(), chmod() */
+#include <utime.h>          /* utime() */
+#include "zlib.h"           /* inflateBackInit(), inflateBack(), */
+                            /* inflateBackEnd(), crc32() */
+
+/* function declaration */
+#define local static
+
+/* buffer constants */
+#define SIZE 32768U         /* input and output buffer sizes */
+#define PIECE 16384         /* limits i/o chunks for 16-bit int case */
+
+/* structure for infback() to pass to input function in() -- it maintains the
+   input file and a buffer of size SIZE */
+struct ind {
+    int infile;
+    unsigned char *inbuf;
+};
+
+/* Load input buffer, assumed to be empty, and return bytes loaded and a
+   pointer to them.  read() is called until the buffer is full, or until it
+   returns end-of-file or error.  Return 0 on error. */
+local unsigned in(void *in_desc, z_const unsigned char **buf)
+{
+    int ret;
+    unsigned len;
+    unsigned char *next;
+    struct ind *me = (struct ind *)in_desc;
+
+    next = me->inbuf;
+    *buf = next;
+    len = 0;
+    do {
+        ret = PIECE;
+        if ((unsigned)ret > SIZE - len)
+            ret = (int)(SIZE - len);
+        ret = (int)read(me->infile, next, ret);
+        if (ret == -1) {
+            len = 0;
+            break;
+        }
+        next += ret;
+        len += ret;
+    } while (ret != 0 && len < SIZE);
+    return len;
+}
+
+/* structure for infback() to pass to output function out() -- it maintains the
+   output file, a running CRC-32 check on the output and the total number of
+   bytes output, both for checking against the gzip trailer.  (The length in
+   the gzip trailer is stored modulo 2^32, so it's ok if a long is 32 bits and
+   the output is greater than 4 GB.) */
+struct outd {
+    int outfile;
+    int check;                  /* true if checking crc and total */
+    unsigned long crc;
+    unsigned long total;
+};
+
+/* Write output buffer and update the CRC-32 and total bytes written.  write()
+   is called until all of the output is written or an error is encountered.
+   On success out() returns 0.  For a write failure, out() returns 1.  If the
+   output file descriptor is -1, then nothing is written.
+ */
+local int out(void *out_desc, unsigned char *buf, unsigned len)
+{
+    int ret;
+    struct outd *me = (struct outd *)out_desc;
+
+    if (me->check) {
+        me->crc = crc32(me->crc, buf, len);
+        me->total += len;
+    }
+    if (me->outfile != -1)
+        do {
+            ret = PIECE;
+            if ((unsigned)ret > len)
+                ret = (int)len;
+            ret = (int)write(me->outfile, buf, ret);
+            if (ret == -1)
+                return 1;
+            buf += ret;
+            len -= ret;
+        } while (len != 0);
+    return 0;
+}
+
+/* next input byte macro for use inside lunpipe() and gunpipe() */
+#define NEXT() (have ? 0 : (have = in(indp, &next)), \
+                last = have ? (have--, (int)(*next++)) : -1)
+
+/* memory for gunpipe() and lunpipe() --
+   the first 256 entries of prefix[] and suffix[] are never used, could
+   have offset the index, but it's faster to waste the memory */
+unsigned char inbuf[SIZE];              /* input buffer */
+unsigned char outbuf[SIZE];             /* output buffer */
+unsigned short prefix[65536];           /* index to LZW prefix string */
+unsigned char suffix[65536];            /* one-character LZW suffix */
+unsigned char match[65280 + 2];         /* buffer for reversed match or gzip
+                                           32K sliding window */
+
+/* throw out what's left in the current bits byte buffer (this is a vestigial
+   aspect of the compressed data format derived from an implementation that
+   made use of a special VAX machine instruction!) */
+#define FLUSHCODE() \
+    do { \
+        left = 0; \
+        rem = 0; \
+        if (chunk > have) { \
+            chunk -= have; \
+            have = 0; \
+            if (NEXT() == -1) \
+                break; \
+            chunk--; \
+            if (chunk > have) { \
+                chunk = have = 0; \
+                break; \
+            } \
+        } \
+        have -= chunk; \
+        next += chunk; \
+        chunk = 0; \
+    } while (0)
+
+/* Decompress a compress (LZW) file from indp to outfile.  The compress magic
+   header (two bytes) has already been read and verified.  There are have bytes
+   of buffered input at next.  strm is used for passing error information back
+   to gunpipe().
+
+   lunpipe() will return Z_OK on success, Z_BUF_ERROR for an unexpected end of
+   file, read error, or write error (a write error indicated by strm->next_in
+   not equal to Z_NULL), or Z_DATA_ERROR for invalid input.
+ */
+local int lunpipe(unsigned have, z_const unsigned char *next, struct ind *indp,
+                  int outfile, z_stream *strm)
+{
+    int last;                   /* last byte read by NEXT(), or -1 if EOF */
+    unsigned chunk;             /* bytes left in current chunk */
+    int left;                   /* bits left in rem */
+    unsigned rem;               /* unused bits from input */
+    int bits;                   /* current bits per code */
+    unsigned code;              /* code, table traversal index */
+    unsigned mask;              /* mask for current bits codes */
+    int max;                    /* maximum bits per code for this stream */
+    unsigned flags;             /* compress flags, then block compress flag */
+    unsigned end;               /* last valid entry in prefix/suffix tables */
+    unsigned temp;              /* current code */
+    unsigned prev;              /* previous code */
+    unsigned final;             /* last character written for previous code */
+    unsigned stack;             /* next position for reversed string */
+    unsigned outcnt;            /* bytes in output buffer */
+    struct outd outd;           /* output structure */
+    unsigned char *p;
+
+    /* set up output */
+    outd.outfile = outfile;
+    outd.check = 0;
+
+    /* process remainder of compress header -- a flags byte */
+    flags = NEXT();
+    if (last == -1)
+        return Z_BUF_ERROR;
+    if (flags & 0x60) {
+        strm->msg = (char *)"unknown lzw flags set";
+        return Z_DATA_ERROR;
+    }
+    max = flags & 0x1f;
+    if (max < 9 || max > 16) {
+        strm->msg = (char *)"lzw bits out of range";
+        return Z_DATA_ERROR;
+    }
+    if (max == 9)                           /* 9 doesn't really mean 9 */
+        max = 10;
+    flags &= 0x80;                          /* true if block compress */
+
+    /* clear table */
+    bits = 9;
+    mask = 0x1ff;
+    end = flags ? 256 : 255;
+
+    /* set up: get first 9-bit code, which is the first decompressed byte, but
+       don't create a table entry until the next code */
+    if (NEXT() == -1)                       /* no compressed data is ok */
+        return Z_OK;
+    final = prev = (unsigned)last;          /* low 8 bits of code */
+    if (NEXT() == -1)                       /* missing a bit */
+        return Z_BUF_ERROR;
+    if (last & 1) {                         /* code must be < 256 */
+        strm->msg = (char *)"invalid lzw code";
+        return Z_DATA_ERROR;
+    }
+    rem = (unsigned)last >> 1;              /* remaining 7 bits */
+    left = 7;
+    chunk = bits - 2;                       /* 7 bytes left in this chunk */
+    outbuf[0] = (unsigned char)final;       /* write first decompressed byte */
+    outcnt = 1;
+
+    /* decode codes */
+    stack = 0;
+    for (;;) {
+        /* if the table will be full after this, increment the code size */
+        if (end >= mask && bits < max) {
+            FLUSHCODE();
+            bits++;
+            mask <<= 1;
+            mask++;
+        }
+
+        /* get a code of length bits */
+        if (chunk == 0)                     /* decrement chunk modulo bits */
+            chunk = bits;
+        code = rem;                         /* low bits of code */
+        if (NEXT() == -1) {                 /* EOF is end of compressed data */
+            /* write remaining buffered output */
+            if (outcnt && out(&outd, outbuf, outcnt)) {
+                strm->next_in = outbuf;     /* signal write error */
+                return Z_BUF_ERROR;
+            }
+            return Z_OK;
+        }
+        code += (unsigned)last << left;     /* middle (or high) bits of code */
+        left += 8;
+        chunk--;
+        if (bits > left) {                  /* need more bits */
+            if (NEXT() == -1)               /* can't end in middle of code */
+                return Z_BUF_ERROR;
+            code += (unsigned)last << left; /* high bits of code */
+            left += 8;
+            chunk--;
+        }
+        code &= mask;                       /* mask to current code length */
+        left -= bits;                       /* number of unused bits */
+        rem = (unsigned)last >> (8 - left); /* unused bits from last byte */
+
+        /* process clear code (256) */
+        if (code == 256 && flags) {
+            FLUSHCODE();
+            bits = 9;                       /* initialize bits and mask */
+            mask = 0x1ff;
+            end = 255;                      /* empty table */
+            continue;                       /* get next code */
+        }
+
+        /* special code to reuse last match */
+        temp = code;                        /* save the current code */
+        if (code > end) {
+            /* Be picky on the allowed code here, and make sure that the code
+               we drop through (prev) will be a valid index so that random
+               input does not cause an exception.  The code != end + 1 check is
+               empirically derived, and not checked in the original uncompress
+               code.  If this ever causes a problem, that check could be safely
+               removed.  Leaving this check in greatly improves gun's ability
+               to detect random or corrupted input after a compress header.
+               In any case, the prev > end check must be retained. */
+            if (code != end + 1 || prev > end) {
+                strm->msg = (char *)"invalid lzw code";
+                return Z_DATA_ERROR;
+            }
+            match[stack++] = (unsigned char)final;
+            code = prev;
+        }
+
+        /* walk through linked list to generate output in reverse order */
+        p = match + stack;
+        while (code >= 256) {
+            *p++ = suffix[code];
+            code = prefix[code];
+        }
+        stack = p - match;
+        match[stack++] = (unsigned char)code;
+        final = code;
+
+        /* link new table entry */
+        if (end < mask) {
+            end++;
+            prefix[end] = (unsigned short)prev;
+            suffix[end] = (unsigned char)final;
+        }
+
+        /* set previous code for next iteration */
+        prev = temp;
+
+        /* write output in forward order */
+        while (stack > SIZE - outcnt) {
+            while (outcnt < SIZE)
+                outbuf[outcnt++] = match[--stack];
+            if (out(&outd, outbuf, outcnt)) {
+                strm->next_in = outbuf; /* signal write error */
+                return Z_BUF_ERROR;
+            }
+            outcnt = 0;
+        }
+        p = match + stack;
+        do {
+            outbuf[outcnt++] = *--p;
+        } while (p > match);
+        stack = 0;
+
+        /* loop for next code with final and prev as the last match, rem and
+           left provide the first 0..7 bits of the next code, end is the last
+           valid table entry */
+    }
+}
+
+/* Decompress a gzip file from infile to outfile.  strm is assumed to have been
+   successfully initialized with inflateBackInit().  The input file may consist
+   of a series of gzip streams, in which case all of them will be decompressed
+   to the output file.  If outfile is -1, then the gzip stream(s) integrity is
+   checked and nothing is written.
+
+   The return value is a zlib error code: Z_MEM_ERROR if out of memory,
+   Z_DATA_ERROR if the header or the compressed data is invalid, or if the
+   trailer CRC-32 check or length doesn't match, Z_BUF_ERROR if the input ends
+   prematurely or a write error occurs, or Z_ERRNO if junk (not a another gzip
+   stream) follows a valid gzip stream.
+ */
+local int gunpipe(z_stream *strm, int infile, int outfile)
+{
+    int ret, first, last;
+    unsigned have, flags, len;
+    z_const unsigned char *next = NULL;
+    struct ind ind, *indp;
+    struct outd outd;
+
+    /* setup input buffer */
+    ind.infile = infile;
+    ind.inbuf = inbuf;
+    indp = &ind;
+
+    /* decompress concatenated gzip streams */
+    have = 0;                               /* no input data read in yet */
+    first = 1;                              /* looking for first gzip header */
+    strm->next_in = Z_NULL;                 /* so Z_BUF_ERROR means EOF */
+    for (;;) {
+        /* look for the two magic header bytes for a gzip stream */
+        if (NEXT() == -1) {
+            ret = Z_OK;
+            break;                          /* empty gzip stream is ok */
+        }
+        if (last != 31 || (NEXT() != 139 && last != 157)) {
+            strm->msg = (char *)"incorrect header check";
+            ret = first ? Z_DATA_ERROR : Z_ERRNO;
+            break;                          /* not a gzip or compress header */
+        }
+        first = 0;                          /* next non-header is junk */
+
+        /* process a compress (LZW) file -- can't be concatenated after this */
+        if (last == 157) {
+            ret = lunpipe(have, next, indp, outfile, strm);
+            break;
+        }
+
+        /* process remainder of gzip header */
+        ret = Z_BUF_ERROR;
+        if (NEXT() != 8) {                  /* only deflate method allowed */
+            if (last == -1) break;
+            strm->msg = (char *)"unknown compression method";
+            ret = Z_DATA_ERROR;
+            break;
+        }
+        flags = NEXT();                     /* header flags */
+        NEXT();                             /* discard mod time, xflgs, os */
+        NEXT();
+        NEXT();
+        NEXT();
+        NEXT();
+        NEXT();
+        if (last == -1) break;
+        if (flags & 0xe0) {
+            strm->msg = (char *)"unknown header flags set";
+            ret = Z_DATA_ERROR;
+            break;
+        }
+        if (flags & 4) {                    /* extra field */
+            len = NEXT();
+            len += (unsigned)(NEXT()) << 8;
+            if (last == -1) break;
+            while (len > have) {
+                len -= have;
+                have = 0;
+                if (NEXT() == -1) break;
+                len--;
+            }
+            if (last == -1) break;
+            have -= len;
+            next += len;
+        }
+        if (flags & 8)                      /* file name */
+            while (NEXT() != 0 && last != -1)
+                ;
+        if (flags & 16)                     /* comment */
+            while (NEXT() != 0 && last != -1)
+                ;
+        if (flags & 2) {                    /* header crc */
+            NEXT();
+            NEXT();
+        }
+        if (last == -1) break;
+
+        /* set up output */
+        outd.outfile = outfile;
+        outd.check = 1;
+        outd.crc = crc32(0L, Z_NULL, 0);
+        outd.total = 0;
+
+        /* decompress data to output */
+        strm->next_in = next;
+        strm->avail_in = have;
+        ret = inflateBack(strm, in, indp, out, &outd);
+        if (ret != Z_STREAM_END) break;
+        next = strm->next_in;
+        have = strm->avail_in;
+        strm->next_in = Z_NULL;             /* so Z_BUF_ERROR means EOF */
+
+        /* check trailer */
+        ret = Z_BUF_ERROR;
+        if (NEXT() != (int)(outd.crc & 0xff) ||
+            NEXT() != (int)((outd.crc >> 8) & 0xff) ||
+            NEXT() != (int)((outd.crc >> 16) & 0xff) ||
+            NEXT() != (int)((outd.crc >> 24) & 0xff)) {
+            /* crc error */
+            if (last != -1) {
+                strm->msg = (char *)"incorrect data check";
+                ret = Z_DATA_ERROR;
+            }
+            break;
+        }
+        if (NEXT() != (int)(outd.total & 0xff) ||
+            NEXT() != (int)((outd.total >> 8) & 0xff) ||
+            NEXT() != (int)((outd.total >> 16) & 0xff) ||
+            NEXT() != (int)((outd.total >> 24) & 0xff)) {
+            /* length error */
+            if (last != -1) {
+                strm->msg = (char *)"incorrect length check";
+                ret = Z_DATA_ERROR;
+            }
+            break;
+        }
+
+        /* go back and look for another gzip stream */
+    }
+
+    /* clean up and return */
+    return ret;
+}
+
+/* Copy file attributes, from -> to, as best we can.  This is best effort, so
+   no errors are reported.  The mode bits, including suid, sgid, and the sticky
+   bit are copied (if allowed), the owner's user id and group id are copied
+   (again if allowed), and the access and modify times are copied. */
+local void copymeta(char *from, char *to)
+{
+    struct stat was;
+    struct utimbuf when;
+
+    /* get all of from's Unix meta data, return if not a regular file */
+    if (stat(from, &was) != 0 || (was.st_mode & S_IFMT) != S_IFREG)
+        return;
+
+    /* set to's mode bits, ignore errors */
+    (void)chmod(to, was.st_mode & 07777);
+
+    /* copy owner's user and group, ignore errors */
+    (void)chown(to, was.st_uid, was.st_gid);
+
+    /* copy access and modify times, ignore errors */
+    when.actime = was.st_atime;
+    when.modtime = was.st_mtime;
+    (void)utime(to, &when);
+}
+
+/* Decompress the file inname to the file outnname, of if test is true, just
+   decompress without writing and check the gzip trailer for integrity.  If
+   inname is NULL or an empty string, read from stdin.  If outname is NULL or
+   an empty string, write to stdout.  strm is a pre-initialized inflateBack
+   structure.  When appropriate, copy the file attributes from inname to
+   outname.
+
+   gunzip() returns 1 if there is an out-of-memory error or an unexpected
+   return code from gunpipe().  Otherwise it returns 0.
+ */
+local int gunzip(z_stream *strm, char *inname, char *outname, int test)
+{
+    int ret;
+    int infile, outfile;
+
+    /* open files */
+    if (inname == NULL || *inname == 0) {
+        inname = "-";
+        infile = 0;     /* stdin */
+    }
+    else {
+        infile = open(inname, O_RDONLY, 0);
+        if (infile == -1) {
+            fprintf(stderr, "gun cannot open %s\n", inname);
+            return 0;
+        }
+    }
+    if (test)
+        outfile = -1;
+    else if (outname == NULL || *outname == 0) {
+        outname = "-";
+        outfile = 1;    /* stdout */
+    }
+    else {
+        outfile = open(outname, O_CREAT | O_TRUNC | O_WRONLY, 0666);
+        if (outfile == -1) {
+            close(infile);
+            fprintf(stderr, "gun cannot create %s\n", outname);
+            return 0;
+        }
+    }
+    errno = 0;
+
+    /* decompress */
+    ret = gunpipe(strm, infile, outfile);
+    if (outfile > 2) close(outfile);
+    if (infile > 2) close(infile);
+
+    /* interpret result */
+    switch (ret) {
+    case Z_OK:
+    case Z_ERRNO:
+        if (infile > 2 && outfile > 2) {
+            copymeta(inname, outname);          /* copy attributes */
+            unlink(inname);
+        }
+        if (ret == Z_ERRNO)
+            fprintf(stderr, "gun warning: trailing garbage ignored in %s\n",
+                    inname);
+        break;
+    case Z_DATA_ERROR:
+        if (outfile > 2) unlink(outname);
+        fprintf(stderr, "gun data error on %s: %s\n", inname, strm->msg);
+        break;
+    case Z_MEM_ERROR:
+        if (outfile > 2) unlink(outname);
+        fprintf(stderr, "gun out of memory error--aborting\n");
+        return 1;
+    case Z_BUF_ERROR:
+        if (outfile > 2) unlink(outname);
+        if (strm->next_in != Z_NULL) {
+            fprintf(stderr, "gun write error on %s: %s\n",
+                    outname, strerror(errno));
+        }
+        else if (errno) {
+            fprintf(stderr, "gun read error on %s: %s\n",
+                    inname, strerror(errno));
+        }
+        else {
+            fprintf(stderr, "gun unexpected end of file on %s\n",
+                    inname);
+        }
+        break;
+    default:
+        if (outfile > 2) unlink(outname);
+        fprintf(stderr, "gun internal error--aborting\n");
+        return 1;
+    }
+    return 0;
+}
+
+/* Process the gun command line arguments.  See the command syntax near the
+   beginning of this source file. */
+int main(int argc, char **argv)
+{
+    int ret, len, test;
+    char *outname;
+    unsigned char *window;
+    z_stream strm;
+
+    /* initialize inflateBack state for repeated use */
+    window = match;                         /* reuse LZW match buffer */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    ret = inflateBackInit(&strm, 15, window);
+    if (ret != Z_OK) {
+        fprintf(stderr, "gun out of memory error--aborting\n");
+        return 1;
+    }
+
+    /* decompress each file to the same name with the suffix removed */
+    argc--;
+    argv++;
+    test = 0;
+    if (argc && strcmp(*argv, "-h") == 0) {
+        fprintf(stderr, "gun 1.6 (17 Jan 2010)\n");
+        fprintf(stderr, "Copyright (C) 2003-2010 Mark Adler\n");
+        fprintf(stderr, "usage: gun [-t] [file1.gz [file2.Z ...]]\n");
+        return 0;
+    }
+    if (argc && strcmp(*argv, "-t") == 0) {
+        test = 1;
+        argc--;
+        argv++;
+    }
+    if (argc)
+        do {
+            if (test)
+                outname = NULL;
+            else {
+                len = (int)strlen(*argv);
+                if (strcmp(*argv + len - 3, ".gz") == 0 ||
+                    strcmp(*argv + len - 3, "-gz") == 0)
+                    len -= 3;
+                else if (strcmp(*argv + len - 2, ".z") == 0 ||
+                    strcmp(*argv + len - 2, "-z") == 0 ||
+                    strcmp(*argv + len - 2, "_z") == 0 ||
+                    strcmp(*argv + len - 2, ".Z") == 0)
+                    len -= 2;
+                else {
+                    fprintf(stderr, "gun error: no gz type on %s--skipping\n",
+                            *argv);
+                    continue;
+                }
+                outname = malloc(len + 1);
+                if (outname == NULL) {
+                    fprintf(stderr, "gun out of memory error--aborting\n");
+                    ret = 1;
+                    break;
+                }
+                memcpy(outname, *argv, len);
+                outname[len] = 0;
+            }
+            ret = gunzip(&strm, *argv, outname, test);
+            if (outname != NULL) free(outname);
+            if (ret) break;
+        } while (argv++, --argc);
+    else
+        ret = gunzip(&strm, NULL, NULL, test);
+
+    /* clean up */
+    inflateBackEnd(&strm);
+    return ret;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzappend.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzappend.c
new file mode 100644
index 000000000..662dec379
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzappend.c
@@ -0,0 +1,504 @@
+/* gzappend -- command to append to a gzip file
+
+  Copyright (C) 2003, 2012 Mark Adler, all rights reserved
+  version 1.2, 11 Oct 2012
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  19 Oct 2003     - First version
+ * 1.1   4 Nov 2003     - Expand and clarify some comments and notes
+ *                      - Add version and copyright to help
+ *                      - Send help to stdout instead of stderr
+ *                      - Add some preemptive typecasts
+ *                      - Add L to constants in lseek() calls
+ *                      - Remove some debugging information in error messages
+ *                      - Use new data_type definition for zlib 1.2.1
+ *                      - Simplfy and unify file operations
+ *                      - Finish off gzip file in gztack()
+ *                      - Use deflatePrime() instead of adding empty blocks
+ *                      - Keep gzip file clean on appended file read errors
+ *                      - Use in-place rotate instead of auxiliary buffer
+ *                        (Why you ask?  Because it was fun to write!)
+ * 1.2  11 Oct 2012     - Fix for proper z_const usage
+ *                      - Check for input buffer malloc failure
+ */
+
+/*
+   gzappend takes a gzip file and appends to it, compressing files from the
+   command line or data from stdin.  The gzip file is written to directly, to
+   avoid copying that file, in case it's large.  Note that this results in the
+   unfriendly behavior that if gzappend fails, the gzip file is corrupted.
+
+   This program was written to illustrate the use of the new Z_BLOCK option of
+   zlib 1.2.x's inflate() function.  This option returns from inflate() at each
+   block boundary to facilitate locating and modifying the last block bit at
+   the start of the final deflate block.  Also whether using Z_BLOCK or not,
+   another required feature of zlib 1.2.x is that inflate() now provides the
+   number of unusued bits in the last input byte used.  gzappend will not work
+   with versions of zlib earlier than 1.2.1.
+
+   gzappend first decompresses the gzip file internally, discarding all but
+   the last 32K of uncompressed data, and noting the location of the last block
+   bit and the number of unused bits in the last byte of the compressed data.
+   The gzip trailer containing the CRC-32 and length of the uncompressed data
+   is verified.  This trailer will be later overwritten.
+
+   Then the last block bit is cleared by seeking back in the file and rewriting
+   the byte that contains it.  Seeking forward, the last byte of the compressed
+   data is saved along with the number of unused bits to initialize deflate.
+
+   A deflate process is initialized, using the last 32K of the uncompressed
+   data from the gzip file to initialize the dictionary.  If the total
+   uncompressed data was less than 32K, then all of it is used to initialize
+   the dictionary.  The deflate output bit buffer is also initialized with the
+   last bits from the original deflate stream.  From here on, the data to
+   append is simply compressed using deflate, and written to the gzip file.
+   When that is complete, the new CRC-32 and uncompressed length are written
+   as the trailer of the gzip file.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "zlib.h"
+
+#define local static
+#define LGCHUNK 14
+#define CHUNK (1U << LGCHUNK)
+#define DSIZE 32768U
+
+/* print an error message and terminate with extreme prejudice */
+local void bye(char *msg1, char *msg2)
+{
+    fprintf(stderr, "gzappend error: %s%s\n", msg1, msg2);
+    exit(1);
+}
+
+/* return the greatest common divisor of a and b using Euclid's algorithm,
+   modified to be fast when one argument much greater than the other, and
+   coded to avoid unnecessary swapping */
+local unsigned gcd(unsigned a, unsigned b)
+{
+    unsigned c;
+
+    while (a && b)
+        if (a > b) {
+            c = b;
+            while (a - c >= c)
+                c <<= 1;
+            a -= c;
+        }
+        else {
+            c = a;
+            while (b - c >= c)
+                c <<= 1;
+            b -= c;
+        }
+    return a + b;
+}
+
+/* rotate list[0..len-1] left by rot positions, in place */
+local void rotate(unsigned char *list, unsigned len, unsigned rot)
+{
+    unsigned char tmp;
+    unsigned cycles;
+    unsigned char *start, *last, *to, *from;
+
+    /* normalize rot and handle degenerate cases */
+    if (len < 2) return;
+    if (rot >= len) rot %= len;
+    if (rot == 0) return;
+
+    /* pointer to last entry in list */
+    last = list + (len - 1);
+
+    /* do simple left shift by one */
+    if (rot == 1) {
+        tmp = *list;
+        memcpy(list, list + 1, len - 1);
+        *last = tmp;
+        return;
+    }
+
+    /* do simple right shift by one */
+    if (rot == len - 1) {
+        tmp = *last;
+        memmove(list + 1, list, len - 1);
+        *list = tmp;
+        return;
+    }
+
+    /* otherwise do rotate as a set of cycles in place */
+    cycles = gcd(len, rot);             /* number of cycles */
+    do {
+        start = from = list + cycles;   /* start index is arbitrary */
+        tmp = *from;                    /* save entry to be overwritten */
+        for (;;) {
+            to = from;                  /* next step in cycle */
+            from += rot;                /* go right rot positions */
+            if (from > last) from -= len;   /* (pointer better not wrap) */
+            if (from == start) break;   /* all but one shifted */
+            *to = *from;                /* shift left */
+        }
+        *to = tmp;                      /* complete the circle */
+    } while (--cycles);
+}
+
+/* structure for gzip file read operations */
+typedef struct {
+    int fd;                     /* file descriptor */
+    int size;                   /* 1 << size is bytes in buf */
+    unsigned left;              /* bytes available at next */
+    unsigned char *buf;         /* buffer */
+    z_const unsigned char *next;    /* next byte in buffer */
+    char *name;                 /* file name for error messages */
+} file;
+
+/* reload buffer */
+local int readin(file *in)
+{
+    int len;
+
+    len = read(in->fd, in->buf, 1 << in->size);
+    if (len == -1) bye("error reading ", in->name);
+    in->left = (unsigned)len;
+    in->next = in->buf;
+    return len;
+}
+
+/* read from file in, exit if end-of-file */
+local int readmore(file *in)
+{
+    if (readin(in) == 0) bye("unexpected end of ", in->name);
+    return 0;
+}
+
+#define read1(in) (in->left == 0 ? readmore(in) : 0, \
+                   in->left--, *(in->next)++)
+
+/* skip over n bytes of in */
+local void skip(file *in, unsigned n)
+{
+    unsigned bypass;
+
+    if (n > in->left) {
+        n -= in->left;
+        bypass = n & ~((1U << in->size) - 1);
+        if (bypass) {
+            if (lseek(in->fd, (off_t)bypass, SEEK_CUR) == -1)
+                bye("seeking ", in->name);
+            n -= bypass;
+        }
+        readmore(in);
+        if (n > in->left)
+            bye("unexpected end of ", in->name);
+    }
+    in->left -= n;
+    in->next += n;
+}
+
+/* read a four-byte unsigned integer, little-endian, from in */
+unsigned long read4(file *in)
+{
+    unsigned long val;
+
+    val = read1(in);
+    val += (unsigned)read1(in) << 8;
+    val += (unsigned long)read1(in) << 16;
+    val += (unsigned long)read1(in) << 24;
+    return val;
+}
+
+/* skip over gzip header */
+local void gzheader(file *in)
+{
+    int flags;
+    unsigned n;
+
+    if (read1(in) != 31 || read1(in) != 139) bye(in->name, " not a gzip file");
+    if (read1(in) != 8) bye("unknown compression method in", in->name);
+    flags = read1(in);
+    if (flags & 0xe0) bye("unknown header flags set in", in->name);
+    skip(in, 6);
+    if (flags & 4) {
+        n = read1(in);
+        n += (unsigned)(read1(in)) << 8;
+        skip(in, n);
+    }
+    if (flags & 8) while (read1(in) != 0) ;
+    if (flags & 16) while (read1(in) != 0) ;
+    if (flags & 2) skip(in, 2);
+}
+
+/* decompress gzip file "name", return strm with a deflate stream ready to
+   continue compression of the data in the gzip file, and return a file
+   descriptor pointing to where to write the compressed data -- the deflate
+   stream is initialized to compress using level "level" */
+local int gzscan(char *name, z_stream *strm, int level)
+{
+    int ret, lastbit, left, full;
+    unsigned have;
+    unsigned long crc, tot;
+    unsigned char *window;
+    off_t lastoff, end;
+    file gz;
+
+    /* open gzip file */
+    gz.name = name;
+    gz.fd = open(name, O_RDWR, 0);
+    if (gz.fd == -1) bye("cannot open ", name);
+    gz.buf = malloc(CHUNK);
+    if (gz.buf == NULL) bye("out of memory", "");
+    gz.size = LGCHUNK;
+    gz.left = 0;
+
+    /* skip gzip header */
+    gzheader(&gz);
+
+    /* prepare to decompress */
+    window = malloc(DSIZE);
+    if (window == NULL) bye("out of memory", "");
+    strm->zalloc = Z_NULL;
+    strm->zfree = Z_NULL;
+    strm->opaque = Z_NULL;
+    ret = inflateInit2(strm, -15);
+    if (ret != Z_OK) bye("out of memory", " or library mismatch");
+
+    /* decompress the deflate stream, saving append information */
+    lastbit = 0;
+    lastoff = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
+    left = 0;
+    strm->avail_in = gz.left;
+    strm->next_in = gz.next;
+    crc = crc32(0L, Z_NULL, 0);
+    have = full = 0;
+    do {
+        /* if needed, get more input */
+        if (strm->avail_in == 0) {
+            readmore(&gz);
+            strm->avail_in = gz.left;
+            strm->next_in = gz.next;
+        }
+
+        /* set up output to next available section of sliding window */
+        strm->avail_out = DSIZE - have;
+        strm->next_out = window + have;
+
+        /* inflate and check for errors */
+        ret = inflate(strm, Z_BLOCK);
+        if (ret == Z_STREAM_ERROR) bye("internal stream error!", "");
+        if (ret == Z_MEM_ERROR) bye("out of memory", "");
+        if (ret == Z_DATA_ERROR)
+            bye("invalid compressed data--format violated in", name);
+
+        /* update crc and sliding window pointer */
+        crc = crc32(crc, window + have, DSIZE - have - strm->avail_out);
+        if (strm->avail_out)
+            have = DSIZE - strm->avail_out;
+        else {
+            have = 0;
+            full = 1;
+        }
+
+        /* process end of block */
+        if (strm->data_type & 128) {
+            if (strm->data_type & 64)
+                left = strm->data_type & 0x1f;
+            else {
+                lastbit = strm->data_type & 0x1f;
+                lastoff = lseek(gz.fd, 0L, SEEK_CUR) - strm->avail_in;
+            }
+        }
+    } while (ret != Z_STREAM_END);
+    inflateEnd(strm);
+    gz.left = strm->avail_in;
+    gz.next = strm->next_in;
+
+    /* save the location of the end of the compressed data */
+    end = lseek(gz.fd, 0L, SEEK_CUR) - gz.left;
+
+    /* check gzip trailer and save total for deflate */
+    if (crc != read4(&gz))
+        bye("invalid compressed data--crc mismatch in ", name);
+    tot = strm->total_out;
+    if ((tot & 0xffffffffUL) != read4(&gz))
+        bye("invalid compressed data--length mismatch in", name);
+
+    /* if not at end of file, warn */
+    if (gz.left || readin(&gz))
+        fprintf(stderr,
+            "gzappend warning: junk at end of gzip file overwritten\n");
+
+    /* clear last block bit */
+    lseek(gz.fd, lastoff - (lastbit != 0), SEEK_SET);
+    if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
+    *gz.buf = (unsigned char)(*gz.buf ^ (1 << ((8 - lastbit) & 7)));
+    lseek(gz.fd, -1L, SEEK_CUR);
+    if (write(gz.fd, gz.buf, 1) != 1) bye("writing after seek to ", name);
+
+    /* if window wrapped, build dictionary from window by rotating */
+    if (full) {
+        rotate(window, DSIZE, have);
+        have = DSIZE;
+    }
+
+    /* set up deflate stream with window, crc, total_in, and leftover bits */
+    ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
+    if (ret != Z_OK) bye("out of memory", "");
+    deflateSetDictionary(strm, window, have);
+    strm->adler = crc;
+    strm->total_in = tot;
+    if (left) {
+        lseek(gz.fd, --end, SEEK_SET);
+        if (read(gz.fd, gz.buf, 1) != 1) bye("reading after seek on ", name);
+        deflatePrime(strm, 8 - left, *gz.buf);
+    }
+    lseek(gz.fd, end, SEEK_SET);
+
+    /* clean up and return */
+    free(window);
+    free(gz.buf);
+    return gz.fd;
+}
+
+/* append file "name" to gzip file gd using deflate stream strm -- if last
+   is true, then finish off the deflate stream at the end */
+local void gztack(char *name, int gd, z_stream *strm, int last)
+{
+    int fd, len, ret;
+    unsigned left;
+    unsigned char *in, *out;
+
+    /* open file to compress and append */
+    fd = 0;
+    if (name != NULL) {
+        fd = open(name, O_RDONLY, 0);
+        if (fd == -1)
+            fprintf(stderr, "gzappend warning: %s not found, skipping ...\n",
+                    name);
+    }
+
+    /* allocate buffers */
+    in = malloc(CHUNK);
+    out = malloc(CHUNK);
+    if (in == NULL || out == NULL) bye("out of memory", "");
+
+    /* compress input file and append to gzip file */
+    do {
+        /* get more input */
+        len = read(fd, in, CHUNK);
+        if (len == -1) {
+            fprintf(stderr,
+                    "gzappend warning: error reading %s, skipping rest ...\n",
+                    name);
+            len = 0;
+        }
+        strm->avail_in = (unsigned)len;
+        strm->next_in = in;
+        if (len) strm->adler = crc32(strm->adler, in, (unsigned)len);
+
+        /* compress and write all available output */
+        do {
+            strm->avail_out = CHUNK;
+            strm->next_out = out;
+            ret = deflate(strm, last && len == 0 ? Z_FINISH : Z_NO_FLUSH);
+            left = CHUNK - strm->avail_out;
+            while (left) {
+                len = write(gd, out + CHUNK - strm->avail_out - left, left);
+                if (len == -1) bye("writing gzip file", "");
+                left -= (unsigned)len;
+            }
+        } while (strm->avail_out == 0 && ret != Z_STREAM_END);
+    } while (len != 0);
+
+    /* write trailer after last entry */
+    if (last) {
+        deflateEnd(strm);
+        out[0] = (unsigned char)(strm->adler);
+        out[1] = (unsigned char)(strm->adler >> 8);
+        out[2] = (unsigned char)(strm->adler >> 16);
+        out[3] = (unsigned char)(strm->adler >> 24);
+        out[4] = (unsigned char)(strm->total_in);
+        out[5] = (unsigned char)(strm->total_in >> 8);
+        out[6] = (unsigned char)(strm->total_in >> 16);
+        out[7] = (unsigned char)(strm->total_in >> 24);
+        len = 8;
+        do {
+            ret = write(gd, out + 8 - len, len);
+            if (ret == -1) bye("writing gzip file", "");
+            len -= ret;
+        } while (len);
+        close(gd);
+    }
+
+    /* clean up and return */
+    free(out);
+    free(in);
+    if (fd > 0) close(fd);
+}
+
+/* process the compression level option if present, scan the gzip file, and
+   append the specified files, or append the data from stdin if no other file
+   names are provided on the command line -- the gzip file must be writable
+   and seekable */
+int main(int argc, char **argv)
+{
+    int gd, level;
+    z_stream strm;
+
+    /* ignore command name */
+    argc--; argv++;
+
+    /* provide usage if no arguments */
+    if (*argv == NULL) {
+        printf(
+            "gzappend 1.2 (11 Oct 2012) Copyright (C) 2003, 2012 Mark Adler\n"
+               );
+        printf(
+            "usage: gzappend [-level] file.gz [ addthis [ andthis ... ]]\n");
+        return 0;
+    }
+
+    /* set compression level */
+    level = Z_DEFAULT_COMPRESSION;
+    if (argv[0][0] == '-') {
+        if (argv[0][1] < '0' || argv[0][1] > '9' || argv[0][2] != 0)
+            bye("invalid compression level", "");
+        level = argv[0][1] - '0';
+        if (*++argv == NULL) bye("no gzip file name after options", "");
+    }
+
+    /* prepare to append to gzip file */
+    gd = gzscan(*argv++, &strm, level);
+
+    /* append files on command line, or from stdin if none */
+    if (*argv == NULL)
+        gztack(NULL, gd, &strm, 1);
+    else
+        do {
+            gztack(*argv, gd, &strm, argv[1] == NULL);
+        } while (*++argv != NULL);
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzjoin.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzjoin.c
new file mode 100644
index 000000000..89e809844
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzjoin.c
@@ -0,0 +1,449 @@
+/* gzjoin -- command to join gzip files into one gzip file
+
+  Copyright (C) 2004, 2005, 2012 Mark Adler, all rights reserved
+  version 1.2, 14 Aug 2012
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+/*
+ * Change history:
+ *
+ * 1.0  11 Dec 2004     - First version
+ * 1.1  12 Jun 2005     - Changed ssize_t to long for portability
+ * 1.2  14 Aug 2012     - Clean up for z_const usage
+ */
+
+/*
+   gzjoin takes one or more gzip files on the command line and writes out a
+   single gzip file that will uncompress to the concatenation of the
+   uncompressed data from the individual gzip files.  gzjoin does this without
+   having to recompress any of the data and without having to calculate a new
+   crc32 for the concatenated uncompressed data.  gzjoin does however have to
+   decompress all of the input data in order to find the bits in the compressed
+   data that need to be modified to concatenate the streams.
+
+   gzjoin does not do an integrity check on the input gzip files other than
+   checking the gzip header and decompressing the compressed data.  They are
+   otherwise assumed to be complete and correct.
+
+   Each joint between gzip files removes at least 18 bytes of previous trailer
+   and subsequent header, and inserts an average of about three bytes to the
+   compressed data in order to connect the streams.  The output gzip file
+   has a minimal ten-byte gzip header with no file name or modification time.
+
+   This program was written to illustrate the use of the Z_BLOCK option of
+   inflate() and the crc32_combine() function.  gzjoin will not compile with
+   versions of zlib earlier than 1.2.3.
+ */
+
+#include <stdio.h>      /* fputs(), fprintf(), fwrite(), putc() */
+#include <stdlib.h>     /* exit(), malloc(), free() */
+#include <fcntl.h>      /* open() */
+#include <unistd.h>     /* close(), read(), lseek() */
+#include "zlib.h"
+    /* crc32(), crc32_combine(), inflateInit2(), inflate(), inflateEnd() */
+
+#define local static
+
+/* exit with an error (return a value to allow use in an expression) */
+local int bail(char *why1, char *why2)
+{
+    fprintf(stderr, "gzjoin error: %s%s, output incomplete\n", why1, why2);
+    exit(1);
+    return 0;
+}
+
+/* -- simple buffered file input with access to the buffer -- */
+
+#define CHUNK 32768         /* must be a power of two and fit in unsigned */
+
+/* bin buffered input file type */
+typedef struct {
+    char *name;             /* name of file for error messages */
+    int fd;                 /* file descriptor */
+    unsigned left;          /* bytes remaining at next */
+    unsigned char *next;    /* next byte to read */
+    unsigned char *buf;     /* allocated buffer of length CHUNK */
+} bin;
+
+/* close a buffered file and free allocated memory */
+local void bclose(bin *in)
+{
+    if (in != NULL) {
+        if (in->fd != -1)
+            close(in->fd);
+        if (in->buf != NULL)
+            free(in->buf);
+        free(in);
+    }
+}
+
+/* open a buffered file for input, return a pointer to type bin, or NULL on
+   failure */
+local bin *bopen(char *name)
+{
+    bin *in;
+
+    in = malloc(sizeof(bin));
+    if (in == NULL)
+        return NULL;
+    in->buf = malloc(CHUNK);
+    in->fd = open(name, O_RDONLY, 0);
+    if (in->buf == NULL || in->fd == -1) {
+        bclose(in);
+        return NULL;
+    }
+    in->left = 0;
+    in->next = in->buf;
+    in->name = name;
+    return in;
+}
+
+/* load buffer from file, return -1 on read error, 0 or 1 on success, with
+   1 indicating that end-of-file was reached */
+local int bload(bin *in)
+{
+    long len;
+
+    if (in == NULL)
+        return -1;
+    if (in->left != 0)
+        return 0;
+    in->next = in->buf;
+    do {
+        len = (long)read(in->fd, in->buf + in->left, CHUNK - in->left);
+        if (len < 0)
+            return -1;
+        in->left += (unsigned)len;
+    } while (len != 0 && in->left < CHUNK);
+    return len == 0 ? 1 : 0;
+}
+
+/* get a byte from the file, bail if end of file */
+#define bget(in) (in->left ? 0 : bload(in), \
+                  in->left ? (in->left--, *(in->next)++) : \
+                    bail("unexpected end of file on ", in->name))
+
+/* get a four-byte little-endian unsigned integer from file */
+local unsigned long bget4(bin *in)
+{
+    unsigned long val;
+
+    val = bget(in);
+    val += (unsigned long)(bget(in)) << 8;
+    val += (unsigned long)(bget(in)) << 16;
+    val += (unsigned long)(bget(in)) << 24;
+    return val;
+}
+
+/* skip bytes in file */
+local void bskip(bin *in, unsigned skip)
+{
+    /* check pointer */
+    if (in == NULL)
+        return;
+
+    /* easy case -- skip bytes in buffer */
+    if (skip <= in->left) {
+        in->left -= skip;
+        in->next += skip;
+        return;
+    }
+
+    /* skip what's in buffer, discard buffer contents */
+    skip -= in->left;
+    in->left = 0;
+
+    /* seek past multiples of CHUNK bytes */
+    if (skip > CHUNK) {
+        unsigned left;
+
+        left = skip & (CHUNK - 1);
+        if (left == 0) {
+            /* exact number of chunks: seek all the way minus one byte to check
+               for end-of-file with a read */
+            lseek(in->fd, skip - 1, SEEK_CUR);
+            if (read(in->fd, in->buf, 1) != 1)
+                bail("unexpected end of file on ", in->name);
+            return;
+        }
+
+        /* skip the integral chunks, update skip with remainder */
+        lseek(in->fd, skip - left, SEEK_CUR);
+        skip = left;
+    }
+
+    /* read more input and skip remainder */
+    bload(in);
+    if (skip > in->left)
+        bail("unexpected end of file on ", in->name);
+    in->left -= skip;
+    in->next += skip;
+}
+
+/* -- end of buffered input functions -- */
+
+/* skip the gzip header from file in */
+local void gzhead(bin *in)
+{
+    int flags;
+
+    /* verify gzip magic header and compression method */
+    if (bget(in) != 0x1f || bget(in) != 0x8b || bget(in) != 8)
+        bail(in->name, " is not a valid gzip file");
+
+    /* get and verify flags */
+    flags = bget(in);
+    if ((flags & 0xe0) != 0)
+        bail("unknown reserved bits set in ", in->name);
+
+    /* skip modification time, extra flags, and os */
+    bskip(in, 6);
+
+    /* skip extra field if present */
+    if (flags & 4) {
+        unsigned len;
+
+        len = bget(in);
+        len += (unsigned)(bget(in)) << 8;
+        bskip(in, len);
+    }
+
+    /* skip file name if present */
+    if (flags & 8)
+        while (bget(in) != 0)
+            ;
+
+    /* skip comment if present */
+    if (flags & 16)
+        while (bget(in) != 0)
+            ;
+
+    /* skip header crc if present */
+    if (flags & 2)
+        bskip(in, 2);
+}
+
+/* write a four-byte little-endian unsigned integer to out */
+local void put4(unsigned long val, FILE *out)
+{
+    putc(val & 0xff, out);
+    putc((val >> 8) & 0xff, out);
+    putc((val >> 16) & 0xff, out);
+    putc((val >> 24) & 0xff, out);
+}
+
+/* Load up zlib stream from buffered input, bail if end of file */
+local void zpull(z_streamp strm, bin *in)
+{
+    if (in->left == 0)
+        bload(in);
+    if (in->left == 0)
+        bail("unexpected end of file on ", in->name);
+    strm->avail_in = in->left;
+    strm->next_in = in->next;
+}
+
+/* Write header for gzip file to out and initialize trailer. */
+local void gzinit(unsigned long *crc, unsigned long *tot, FILE *out)
+{
+    fwrite("\x1f\x8b\x08\0\0\0\0\0\0\xff", 1, 10, out);
+    *crc = crc32(0L, Z_NULL, 0);
+    *tot = 0;
+}
+
+/* Copy the compressed data from name, zeroing the last block bit of the last
+   block if clr is true, and adding empty blocks as needed to get to a byte
+   boundary.  If clr is false, then the last block becomes the last block of
+   the output, and the gzip trailer is written.  crc and tot maintains the
+   crc and length (modulo 2^32) of the output for the trailer.  The resulting
+   gzip file is written to out.  gzinit() must be called before the first call
+   of gzcopy() to write the gzip header and to initialize crc and tot. */
+local void gzcopy(char *name, int clr, unsigned long *crc, unsigned long *tot,
+                  FILE *out)
+{
+    int ret;                /* return value from zlib functions */
+    int pos;                /* where the "last block" bit is in byte */
+    int last;               /* true if processing the last block */
+    bin *in;                /* buffered input file */
+    unsigned char *start;   /* start of compressed data in buffer */
+    unsigned char *junk;    /* buffer for uncompressed data -- discarded */
+    z_off_t len;            /* length of uncompressed data (support > 4 GB) */
+    z_stream strm;          /* zlib inflate stream */
+
+    /* open gzip file and skip header */
+    in = bopen(name);
+    if (in == NULL)
+        bail("could not open ", name);
+    gzhead(in);
+
+    /* allocate buffer for uncompressed data and initialize raw inflate
+       stream */
+    junk = malloc(CHUNK);
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, -15);
+    if (junk == NULL || ret != Z_OK)
+        bail("out of memory", "");
+
+    /* inflate and copy compressed data, clear last-block bit if requested */
+    len = 0;
+    zpull(&strm, in);
+    start = in->next;
+    last = start[0] & 1;
+    if (last && clr)
+        start[0] &= ~1;
+    strm.avail_out = 0;
+    for (;;) {
+        /* if input used and output done, write used input and get more */
+        if (strm.avail_in == 0 && strm.avail_out != 0) {
+            fwrite(start, 1, strm.next_in - start, out);
+            start = in->buf;
+            in->left = 0;
+            zpull(&strm, in);
+        }
+
+        /* decompress -- return early when end-of-block reached */
+        strm.avail_out = CHUNK;
+        strm.next_out = junk;
+        ret = inflate(&strm, Z_BLOCK);
+        switch (ret) {
+        case Z_MEM_ERROR:
+            bail("out of memory", "");
+        case Z_DATA_ERROR:
+            bail("invalid compressed data in ", in->name);
+        }
+
+        /* update length of uncompressed data */
+        len += CHUNK - strm.avail_out;
+
+        /* check for block boundary (only get this when block copied out) */
+        if (strm.data_type & 128) {
+            /* if that was the last block, then done */
+            if (last)
+                break;
+
+            /* number of unused bits in last byte */
+            pos = strm.data_type & 7;
+
+            /* find the next last-block bit */
+            if (pos != 0) {
+                /* next last-block bit is in last used byte */
+                pos = 0x100 >> pos;
+                last = strm.next_in[-1] & pos;
+                if (last && clr)
+                    in->buf[strm.next_in - in->buf - 1] &= ~pos;
+            }
+            else {
+                /* next last-block bit is in next unused byte */
+                if (strm.avail_in == 0) {
+                    /* don't have that byte yet -- get it */
+                    fwrite(start, 1, strm.next_in - start, out);
+                    start = in->buf;
+                    in->left = 0;
+                    zpull(&strm, in);
+                }
+                last = strm.next_in[0] & 1;
+                if (last && clr)
+                    in->buf[strm.next_in - in->buf] &= ~1;
+            }
+        }
+    }
+
+    /* update buffer with unused input */
+    in->left = strm.avail_in;
+    in->next = in->buf + (strm.next_in - in->buf);
+
+    /* copy used input, write empty blocks to get to byte boundary */
+    pos = strm.data_type & 7;
+    fwrite(start, 1, in->next - start - 1, out);
+    last = in->next[-1];
+    if (pos == 0 || !clr)
+        /* already at byte boundary, or last file: write last byte */
+        putc(last, out);
+    else {
+        /* append empty blocks to last byte */
+        last &= ((0x100 >> pos) - 1);       /* assure unused bits are zero */
+        if (pos & 1) {
+            /* odd -- append an empty stored block */
+            putc(last, out);
+            if (pos == 1)
+                putc(0, out);               /* two more bits in block header */
+            fwrite("\0\0\xff\xff", 1, 4, out);
+        }
+        else {
+            /* even -- append 1, 2, or 3 empty fixed blocks */
+            switch (pos) {
+            case 6:
+                putc(last | 8, out);
+                last = 0;
+            case 4:
+                putc(last | 0x20, out);
+                last = 0;
+            case 2:
+                putc(last | 0x80, out);
+                putc(0, out);
+            }
+        }
+    }
+
+    /* update crc and tot */
+    *crc = crc32_combine(*crc, bget4(in), len);
+    *tot += (unsigned long)len;
+
+    /* clean up */
+    inflateEnd(&strm);
+    free(junk);
+    bclose(in);
+
+    /* write trailer if this is the last gzip file */
+    if (!clr) {
+        put4(*crc, out);
+        put4(*tot, out);
+    }
+}
+
+/* join the gzip files on the command line, write result to stdout */
+int main(int argc, char **argv)
+{
+    unsigned long crc, tot;     /* running crc and total uncompressed length */
+
+    /* skip command name */
+    argc--;
+    argv++;
+
+    /* show usage if no arguments */
+    if (argc == 0) {
+        fputs("gzjoin usage: gzjoin f1.gz [f2.gz [f3.gz ...]] > fjoin.gz\n",
+              stderr);
+        return 0;
+    }
+
+    /* join gzip files on command line and write to stdout */
+    gzinit(&crc, &tot, stdout);
+    while (argc--)
+        gzcopy(*argv++, argc, &crc, &tot, stdout);
+
+    /* done */
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzlog.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzlog.c
new file mode 100644
index 000000000..b8c29274e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzlog.c
@@ -0,0 +1,1059 @@
+/*
+ * gzlog.c
+ * Copyright (C) 2004, 2008, 2012, 2016 Mark Adler, all rights reserved
+ * For conditions of distribution and use, see copyright notice in gzlog.h
+ * version 2.2, 14 Aug 2012
+ */
+
+/*
+   gzlog provides a mechanism for frequently appending short strings to a gzip
+   file that is efficient both in execution time and compression ratio.  The
+   strategy is to write the short strings in an uncompressed form to the end of
+   the gzip file, only compressing when the amount of uncompressed data has
+   reached a given threshold.
+
+   gzlog also provides protection against interruptions in the process due to
+   system crashes.  The status of the operation is recorded in an extra field
+   in the gzip file, and is only updated once the gzip file is brought to a
+   valid state.  The last data to be appended or compressed is saved in an
+   auxiliary file, so that if the operation is interrupted, it can be completed
+   the next time an append operation is attempted.
+
+   gzlog maintains another auxiliary file with the last 32K of data from the
+   compressed portion, which is preloaded for the compression of the subsequent
+   data.  This minimizes the impact to the compression ratio of appending.
+ */
+
+/*
+   Operations Concept:
+
+   Files (log name "foo"):
+   foo.gz -- gzip file with the complete log
+   foo.add -- last message to append or last data to compress
+   foo.dict -- dictionary of the last 32K of data for next compression
+   foo.temp -- temporary dictionary file for compression after this one
+   foo.lock -- lock file for reading and writing the other files
+   foo.repairs -- log file for log file recovery operations (not compressed)
+
+   gzip file structure:
+   - fixed-length (no file name) header with extra field (see below)
+   - compressed data ending initially with empty stored block
+   - uncompressed data filling out originally empty stored block and
+     subsequent stored blocks as needed (16K max each)
+   - gzip trailer
+   - no junk at end (no other gzip streams)
+
+   When appending data, the information in the first three items above plus the
+   foo.add file are sufficient to recover an interrupted append operation.  The
+   extra field has the necessary information to restore the start of the last
+   stored block and determine where to append the data in the foo.add file, as
+   well as the crc and length of the gzip data before the append operation.
+
+   The foo.add file is created before the gzip file is marked for append, and
+   deleted after the gzip file is marked as complete.  So if the append
+   operation is interrupted, the data to add will still be there.  If due to
+   some external force, the foo.add file gets deleted between when the append
+   operation was interrupted and when recovery is attempted, the gzip file will
+   still be restored, but without the appended data.
+
+   When compressing data, the information in the first two items above plus the
+   foo.add file are sufficient to recover an interrupted compress operation.
+   The extra field has the necessary information to find the end of the
+   compressed data, and contains both the crc and length of just the compressed
+   data and of the complete set of data including the contents of the foo.add
+   file.
+
+   Again, the foo.add file is maintained during the compress operation in case
+   of an interruption.  If in the unlikely event the foo.add file with the data
+   to be compressed is missing due to some external force, a gzip file with
+   just the previous compressed data will be reconstructed.  In this case, all
+   of the data that was to be compressed is lost (approximately one megabyte).
+   This will not occur if all that happened was an interruption of the compress
+   operation.
+
+   The third state that is marked is the replacement of the old dictionary with
+   the new dictionary after a compress operation.  Once compression is
+   complete, the gzip file is marked as being in the replace state.  This
+   completes the gzip file, so an interrupt after being so marked does not
+   result in recompression.  Then the dictionary file is replaced, and the gzip
+   file is marked as completed.  This state prevents the possibility of
+   restarting compression with the wrong dictionary file.
+
+   All three operations are wrapped by a lock/unlock procedure.  In order to
+   gain exclusive access to the log files, first a foo.lock file must be
+   exclusively created.  When all operations are complete, the lock is
+   released by deleting the foo.lock file.  If when attempting to create the
+   lock file, it already exists and the modify time of the lock file is more
+   than five minutes old (set by the PATIENCE define below), then the old
+   lock file is considered stale and deleted, and the exclusive creation of
+   the lock file is retried.  To assure that there are no false assessments
+   of the staleness of the lock file, the operations periodically touch the
+   lock file to update the modified date.
+
+   Following is the definition of the extra field with all of the information
+   required to enable the above append and compress operations and their
+   recovery if interrupted.  Multi-byte values are stored little endian
+   (consistent with the gzip format).  File pointers are eight bytes long.
+   The crc's and lengths for the gzip trailer are four bytes long.  (Note that
+   the length at the end of a gzip file is used for error checking only, and
+   for large files is actually the length modulo 2^32.)  The stored block
+   length is two bytes long.  The gzip extra field two-byte identification is
+   "ap" for append.  It is assumed that writing the extra field to the file is
+   an "atomic" operation.  That is, either all of the extra field is written
+   to the file, or none of it is, if the operation is interrupted right at the
+   point of updating the extra field.  This is a reasonable assumption, since
+   the extra field is within the first 52 bytes of the file, which is smaller
+   than any expected block size for a mass storage device (usually 512 bytes or
+   larger).
+
+   Extra field (35 bytes):
+   - Pointer to first stored block length -- this points to the two-byte length
+     of the first stored block, which is followed by the two-byte, one's
+     complement of that length.  The stored block length is preceded by the
+     three-bit header of the stored block, which is the actual start of the
+     stored block in the deflate format.  See the bit offset field below.
+   - Pointer to the last stored block length.  This is the same as above, but
+     for the last stored block of the uncompressed data in the gzip file.
+     Initially this is the same as the first stored block length pointer.
+     When the stored block gets to 16K (see the MAX_STORE define), then a new
+     stored block as added, at which point the last stored block length pointer
+     is different from the first stored block length pointer.  When they are
+     different, the first bit of the last stored block header is eight bits, or
+     one byte back from the block length.
+   - Compressed data crc and length.  This is the crc and length of the data
+     that is in the compressed portion of the deflate stream.  These are used
+     only in the event that the foo.add file containing the data to compress is
+     lost after a compress operation is interrupted.
+   - Total data crc and length.  This is the crc and length of all of the data
+     stored in the gzip file, compressed and uncompressed.  It is used to
+     reconstruct the gzip trailer when compressing, as well as when recovering
+     interrupted operations.
+   - Final stored block length.  This is used to quickly find where to append,
+     and allows the restoration of the original final stored block state when
+     an append operation is interrupted.
+   - First stored block start as the number of bits back from the final stored
+     block first length byte.  This value is in the range of 3..10, and is
+     stored as the low three bits of the final byte of the extra field after
+     subtracting three (0..7).  This allows the last-block bit of the stored
+     block header to be updated when a new stored block is added, for the case
+     when the first stored block and the last stored block are the same.  (When
+     they are different, the numbers of bits back is known to be eight.)  This
+     also allows for new compressed data to be appended to the old compressed
+     data in the compress operation, overwriting the previous first stored
+     block, or for the compressed data to be terminated and a valid gzip file
+     reconstructed on the off chance that a compression operation was
+     interrupted and the data to compress in the foo.add file was deleted.
+   - The operation in process.  This is the next two bits in the last byte (the
+     bits under the mask 0x18).  The are interpreted as 0: nothing in process,
+     1: append in process, 2: compress in process, 3: replace in process.
+   - The top three bits of the last byte in the extra field are reserved and
+     are currently set to zero.
+
+   Main procedure:
+   - Exclusively create the foo.lock file using the O_CREAT and O_EXCL modes of
+     the system open() call.  If the modify time of an existing lock file is
+     more than PATIENCE seconds old, then the lock file is deleted and the
+     exclusive create is retried.
+   - Load the extra field from the foo.gz file, and see if an operation was in
+     progress but not completed.  If so, apply the recovery procedure below.
+   - Perform the append procedure with the provided data.
+   - If the uncompressed data in the foo.gz file is 1MB or more, apply the
+     compress procedure.
+   - Delete the foo.lock file.
+
+   Append procedure:
+   - Put what to append in the foo.add file so that the operation can be
+     restarted if this procedure is interrupted.
+   - Mark the foo.gz extra field with the append operation in progress.
+   + Restore the original last-block bit and stored block length of the last
+     stored block from the information in the extra field, in case a previous
+     append operation was interrupted.
+   - Append the provided data to the last stored block, creating new stored
+     blocks as needed and updating the stored blocks last-block bits and
+     lengths.
+   - Update the crc and length with the new data, and write the gzip trailer.
+   - Write over the extra field (with a single write operation) with the new
+     pointers, lengths, and crc's, and mark the gzip file as not in process.
+     Though there is still a foo.add file, it will be ignored since nothing
+     is in process.  If a foo.add file is leftover from a previously
+     completed operation, it is truncated when writing new data to it.
+   - Delete the foo.add file.
+
+   Compress and replace procedures:
+   - Read all of the uncompressed data in the stored blocks in foo.gz and write
+     it to foo.add.  Also write foo.temp with the last 32K of that data to
+     provide a dictionary for the next invocation of this procedure.
+   - Rewrite the extra field marking foo.gz with a compression in process.
+   * If there is no data provided to compress (due to a missing foo.add file
+     when recovering), reconstruct and truncate the foo.gz file to contain
+     only the previous compressed data and proceed to the step after the next
+     one.  Otherwise ...
+   - Compress the data with the dictionary in foo.dict, and write to the
+     foo.gz file starting at the bit immediately following the last previously
+     compressed block.  If there is no foo.dict, proceed anyway with the
+     compression at slightly reduced efficiency.  (For the foo.dict file to be
+     missing requires some external failure beyond simply the interruption of
+     a compress operation.)  During this process, the foo.lock file is
+     periodically touched to assure that that file is not considered stale by
+     another process before we're done.  The deflation is terminated with a
+     non-last empty static block (10 bits long), that is then located and
+     written over by a last-bit-set empty stored block.
+   - Append the crc and length of the data in the gzip file (previously
+     calculated during the append operations).
+   - Write over the extra field with the updated stored block offsets, bits
+     back, crc's, and lengths, and mark foo.gz as in process for a replacement
+     of the dictionary.
+   @ Delete the foo.add file.
+   - Replace foo.dict with foo.temp.
+   - Write over the extra field, marking foo.gz as complete.
+
+   Recovery procedure:
+   - If not a replace recovery, read in the foo.add file, and provide that data
+     to the appropriate recovery below.  If there is no foo.add file, provide
+     a zero data length to the recovery.  In that case, the append recovery
+     restores the foo.gz to the previous compressed + uncompressed data state.
+     For the the compress recovery, a missing foo.add file results in foo.gz
+     being restored to the previous compressed-only data state.
+   - Append recovery:
+     - Pick up append at + step above
+   - Compress recovery:
+     - Pick up compress at * step above
+   - Replace recovery:
+     - Pick up compress at @ step above
+   - Log the repair with a date stamp in foo.repairs
+ */
+
+#include <sys/types.h>
+#include <stdio.h>      /* rename, fopen, fprintf, fclose */
+#include <stdlib.h>     /* malloc, free */
+#include <string.h>     /* strlen, strrchr, strcpy, strncpy, strcmp */
+#include <fcntl.h>      /* open */
+#include <unistd.h>     /* lseek, read, write, close, unlink, sleep, */
+                        /* ftruncate, fsync */
+#include <errno.h>      /* errno */
+#include <time.h>       /* time, ctime */
+#include <sys/stat.h>   /* stat */
+#include <sys/time.h>   /* utimes */
+#include "zlib.h"       /* crc32 */
+
+#include "gzlog.h"      /* header for external access */
+
+#define local static
+typedef unsigned int uint;
+typedef unsigned long ulong;
+
+/* Macro for debugging to deterministically force recovery operations */
+#ifdef GZLOG_DEBUG
+    #include <setjmp.h>         /* longjmp */
+    jmp_buf gzlog_jump;         /* where to go back to */
+    int gzlog_bail = 0;         /* which point to bail at (1..8) */
+    int gzlog_count = -1;       /* number of times through to wait */
+#   define BAIL(n) do { if (n == gzlog_bail && gzlog_count-- == 0) \
+                            longjmp(gzlog_jump, gzlog_bail); } while (0)
+#else
+#   define BAIL(n)
+#endif
+
+/* how old the lock file can be in seconds before considering it stale */
+#define PATIENCE 300
+
+/* maximum stored block size in Kbytes -- must be in 1..63 */
+#define MAX_STORE 16
+
+/* number of stored Kbytes to trigger compression (must be >= 32 to allow
+   dictionary construction, and <= 204 * MAX_STORE, in order for >> 10 to
+   discard the stored block headers contribution of five bytes each) */
+#define TRIGGER 1024
+
+/* size of a deflate dictionary (this cannot be changed) */
+#define DICT 32768U
+
+/* values for the operation (2 bits) */
+#define NO_OP 0
+#define APPEND_OP 1
+#define COMPRESS_OP 2
+#define REPLACE_OP 3
+
+/* macros to extract little-endian integers from an unsigned byte buffer */
+#define PULL2(p) ((p)[0]+((uint)((p)[1])<<8))
+#define PULL4(p) (PULL2(p)+((ulong)PULL2(p+2)<<16))
+#define PULL8(p) (PULL4(p)+((off_t)PULL4(p+4)<<32))
+
+/* macros to store integers into a byte buffer in little-endian order */
+#define PUT2(p,a) do {(p)[0]=a;(p)[1]=(a)>>8;} while(0)
+#define PUT4(p,a) do {PUT2(p,a);PUT2(p+2,a>>16);} while(0)
+#define PUT8(p,a) do {PUT4(p,a);PUT4(p+4,a>>32);} while(0)
+
+/* internal structure for log information */
+#define LOGID "\106\035\172"    /* should be three non-zero characters */
+struct log {
+    char id[4];     /* contains LOGID to detect inadvertent overwrites */
+    int fd;         /* file descriptor for .gz file, opened read/write */
+    char *path;     /* allocated path, e.g. "/var/log/foo" or "foo" */
+    char *end;      /* end of path, for appending suffices such as ".gz" */
+    off_t first;    /* offset of first stored block first length byte */
+    int back;       /* location of first block id in bits back from first */
+    uint stored;    /* bytes currently in last stored block */
+    off_t last;     /* offset of last stored block first length byte */
+    ulong ccrc;     /* crc of compressed data */
+    ulong clen;     /* length (modulo 2^32) of compressed data */
+    ulong tcrc;     /* crc of total data */
+    ulong tlen;     /* length (modulo 2^32) of total data */
+    time_t lock;    /* last modify time of our lock file */
+};
+
+/* gzip header for gzlog */
+local unsigned char log_gzhead[] = {
+    0x1f, 0x8b,                 /* magic gzip id */
+    8,                          /* compression method is deflate */
+    4,                          /* there is an extra field (no file name) */
+    0, 0, 0, 0,                 /* no modification time provided */
+    0, 0xff,                    /* no extra flags, no OS specified */
+    39, 0, 'a', 'p', 35, 0      /* extra field with "ap" subfield */
+                                /* 35 is EXTRA, 39 is EXTRA + 4 */
+};
+
+#define HEAD sizeof(log_gzhead)     /* should be 16 */
+
+/* initial gzip extra field content (52 == HEAD + EXTRA + 1) */
+local unsigned char log_gzext[] = {
+    52, 0, 0, 0, 0, 0, 0, 0,    /* offset of first stored block length */
+    52, 0, 0, 0, 0, 0, 0, 0,    /* offset of last stored block length */
+    0, 0, 0, 0, 0, 0, 0, 0,     /* compressed data crc and length */
+    0, 0, 0, 0, 0, 0, 0, 0,     /* total data crc and length */
+    0, 0,                       /* final stored block data length */
+    5                           /* op is NO_OP, last bit 8 bits back */
+};
+
+#define EXTRA sizeof(log_gzext)     /* should be 35 */
+
+/* initial gzip data and trailer */
+local unsigned char log_gzbody[] = {
+    1, 0, 0, 0xff, 0xff,        /* empty stored block (last) */
+    0, 0, 0, 0,                 /* crc */
+    0, 0, 0, 0                  /* uncompressed length */
+};
+
+#define BODY sizeof(log_gzbody)
+
+/* Exclusively create foo.lock in order to negotiate exclusive access to the
+   foo.* files.  If the modify time of an existing lock file is greater than
+   PATIENCE seconds in the past, then consider the lock file to have been
+   abandoned, delete it, and try the exclusive create again.  Save the lock
+   file modify time for verification of ownership.  Return 0 on success, or -1
+   on failure, usually due to an access restriction or invalid path.  Note that
+   if stat() or unlink() fails, it may be due to another process noticing the
+   abandoned lock file a smidge sooner and deleting it, so those are not
+   flagged as an error. */
+local int log_lock(struct log *log)
+{
+    int fd;
+    struct stat st;
+
+    strcpy(log->end, ".lock");
+    while ((fd = open(log->path, O_CREAT | O_EXCL, 0644)) < 0) {
+        if (errno != EEXIST)
+            return -1;
+        if (stat(log->path, &st) == 0 && time(NULL) - st.st_mtime > PATIENCE) {
+            unlink(log->path);
+            continue;
+        }
+        sleep(2);       /* relinquish the CPU for two seconds while waiting */
+    }
+    close(fd);
+    if (stat(log->path, &st) == 0)
+        log->lock = st.st_mtime;
+    return 0;
+}
+
+/* Update the modify time of the lock file to now, in order to prevent another
+   task from thinking that the lock is stale.  Save the lock file modify time
+   for verification of ownership. */
+local void log_touch(struct log *log)
+{
+    struct stat st;
+
+    strcpy(log->end, ".lock");
+    utimes(log->path, NULL);
+    if (stat(log->path, &st) == 0)
+        log->lock = st.st_mtime;
+}
+
+/* Check the log file modify time against what is expected.  Return true if
+   this is not our lock.  If it is our lock, touch it to keep it. */
+local int log_check(struct log *log)
+{
+    struct stat st;
+
+    strcpy(log->end, ".lock");
+    if (stat(log->path, &st) || st.st_mtime != log->lock)
+        return 1;
+    log_touch(log);
+    return 0;
+}
+
+/* Unlock a previously acquired lock, but only if it's ours. */
+local void log_unlock(struct log *log)
+{
+    if (log_check(log))
+        return;
+    strcpy(log->end, ".lock");
+    unlink(log->path);
+    log->lock = 0;
+}
+
+/* Check the gzip header and read in the extra field, filling in the values in
+   the log structure.  Return op on success or -1 if the gzip header was not as
+   expected.  op is the current operation in progress last written to the extra
+   field.  This assumes that the gzip file has already been opened, with the
+   file descriptor log->fd. */
+local int log_head(struct log *log)
+{
+    int op;
+    unsigned char buf[HEAD + EXTRA];
+
+    if (lseek(log->fd, 0, SEEK_SET) < 0 ||
+        read(log->fd, buf, HEAD + EXTRA) != HEAD + EXTRA ||
+        memcmp(buf, log_gzhead, HEAD)) {
+        return -1;
+    }
+    log->first = PULL8(buf + HEAD);
+    log->last = PULL8(buf + HEAD + 8);
+    log->ccrc = PULL4(buf + HEAD + 16);
+    log->clen = PULL4(buf + HEAD + 20);
+    log->tcrc = PULL4(buf + HEAD + 24);
+    log->tlen = PULL4(buf + HEAD + 28);
+    log->stored = PULL2(buf + HEAD + 32);
+    log->back = 3 + (buf[HEAD + 34] & 7);
+    op = (buf[HEAD + 34] >> 3) & 3;
+    return op;
+}
+
+/* Write over the extra field contents, marking the operation as op.  Use fsync
+   to assure that the device is written to, and in the requested order.  This
+   operation, and only this operation, is assumed to be atomic in order to
+   assure that the log is recoverable in the event of an interruption at any
+   point in the process.  Return -1 if the write to foo.gz failed. */
+local int log_mark(struct log *log, int op)
+{
+    int ret;
+    unsigned char ext[EXTRA];
+
+    PUT8(ext, log->first);
+    PUT8(ext + 8, log->last);
+    PUT4(ext + 16, log->ccrc);
+    PUT4(ext + 20, log->clen);
+    PUT4(ext + 24, log->tcrc);
+    PUT4(ext + 28, log->tlen);
+    PUT2(ext + 32, log->stored);
+    ext[34] = log->back - 3 + (op << 3);
+    fsync(log->fd);
+    ret = lseek(log->fd, HEAD, SEEK_SET) < 0 ||
+          write(log->fd, ext, EXTRA) != EXTRA ? -1 : 0;
+    fsync(log->fd);
+    return ret;
+}
+
+/* Rewrite the last block header bits and subsequent zero bits to get to a byte
+   boundary, setting the last block bit if last is true, and then write the
+   remainder of the stored block header (length and one's complement).  Leave
+   the file pointer after the end of the last stored block data.  Return -1 if
+   there is a read or write failure on the foo.gz file */
+local int log_last(struct log *log, int last)
+{
+    int back, len, mask;
+    unsigned char buf[6];
+
+    /* determine the locations of the bytes and bits to modify */
+    back = log->last == log->first ? log->back : 8;
+    len = back > 8 ? 2 : 1;                 /* bytes back from log->last */
+    mask = 0x80 >> ((back - 1) & 7);        /* mask for block last-bit */
+
+    /* get the byte to modify (one or two back) into buf[0] -- don't need to
+       read the byte if the last-bit is eight bits back, since in that case
+       the entire byte will be modified */
+    buf[0] = 0;
+    if (back != 8 && (lseek(log->fd, log->last - len, SEEK_SET) < 0 ||
+                      read(log->fd, buf, 1) != 1))
+        return -1;
+
+    /* change the last-bit of the last stored block as requested -- note
+       that all bits above the last-bit are set to zero, per the type bits
+       of a stored block being 00 and per the convention that the bits to
+       bring the stream to a byte boundary are also zeros */
+    buf[1] = 0;
+    buf[2 - len] = (*buf & (mask - 1)) + (last ? mask : 0);
+
+    /* write the modified stored block header and lengths, move the file
+       pointer to after the last stored block data */
+    PUT2(buf + 2, log->stored);
+    PUT2(buf + 4, log->stored ^ 0xffff);
+    return lseek(log->fd, log->last - len, SEEK_SET) < 0 ||
+           write(log->fd, buf + 2 - len, len + 4) != len + 4 ||
+           lseek(log->fd, log->stored, SEEK_CUR) < 0 ? -1 : 0;
+}
+
+/* Append len bytes from data to the locked and open log file.  len may be zero
+   if recovering and no .add file was found.  In that case, the previous state
+   of the foo.gz file is restored.  The data is appended uncompressed in
+   deflate stored blocks.  Return -1 if there was an error reading or writing
+   the foo.gz file. */
+local int log_append(struct log *log, unsigned char *data, size_t len)
+{
+    uint put;
+    off_t end;
+    unsigned char buf[8];
+
+    /* set the last block last-bit and length, in case recovering an
+       interrupted append, then position the file pointer to append to the
+       block */
+    if (log_last(log, 1))
+        return -1;
+
+    /* append, adding stored blocks and updating the offset of the last stored
+       block as needed, and update the total crc and length */
+    while (len) {
+        /* append as much as we can to the last block */
+        put = (MAX_STORE << 10) - log->stored;
+        if (put > len)
+            put = (uint)len;
+        if (put) {
+            if (write(log->fd, data, put) != put)
+                return -1;
+            BAIL(1);
+            log->tcrc = crc32(log->tcrc, data, put);
+            log->tlen += put;
+            log->stored += put;
+            data += put;
+            len -= put;
+        }
+
+        /* if we need to, add a new empty stored block */
+        if (len) {
+            /* mark current block as not last */
+            if (log_last(log, 0))
+                return -1;
+
+            /* point to new, empty stored block */
+            log->last += 4 + log->stored + 1;
+            log->stored = 0;
+        }
+
+        /* mark last block as last, update its length */
+        if (log_last(log, 1))
+            return -1;
+        BAIL(2);
+    }
+
+    /* write the new crc and length trailer, and truncate just in case (could
+       be recovering from partial append with a missing foo.add file) */
+    PUT4(buf, log->tcrc);
+    PUT4(buf + 4, log->tlen);
+    if (write(log->fd, buf, 8) != 8 ||
+        (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end))
+        return -1;
+
+    /* write the extra field, marking the log file as done, delete .add file */
+    if (log_mark(log, NO_OP))
+        return -1;
+    strcpy(log->end, ".add");
+    unlink(log->path);          /* ignore error, since may not exist */
+    return 0;
+}
+
+/* Replace the foo.dict file with the foo.temp file.  Also delete the foo.add
+   file, since the compress operation may have been interrupted before that was
+   done.  Returns 1 if memory could not be allocated, or -1 if reading or
+   writing foo.gz fails, or if the rename fails for some reason other than
+   foo.temp not existing.  foo.temp not existing is a permitted error, since
+   the replace operation may have been interrupted after the rename is done,
+   but before foo.gz is marked as complete. */
+local int log_replace(struct log *log)
+{
+    int ret;
+    char *dest;
+
+    /* delete foo.add file */
+    strcpy(log->end, ".add");
+    unlink(log->path);         /* ignore error, since may not exist */
+    BAIL(3);
+
+    /* rename foo.name to foo.dict, replacing foo.dict if it exists */
+    strcpy(log->end, ".dict");
+    dest = malloc(strlen(log->path) + 1);
+    if (dest == NULL)
+        return -2;
+    strcpy(dest, log->path);
+    strcpy(log->end, ".temp");
+    ret = rename(log->path, dest);
+    free(dest);
+    if (ret && errno != ENOENT)
+        return -1;
+    BAIL(4);
+
+    /* mark the foo.gz file as done */
+    return log_mark(log, NO_OP);
+}
+
+/* Compress the len bytes at data and append the compressed data to the
+   foo.gz deflate data immediately after the previous compressed data.  This
+   overwrites the previous uncompressed data, which was stored in foo.add
+   and is the data provided in data[0..len-1].  If this operation is
+   interrupted, it picks up at the start of this routine, with the foo.add
+   file read in again.  If there is no data to compress (len == 0), then we
+   simply terminate the foo.gz file after the previously compressed data,
+   appending a final empty stored block and the gzip trailer.  Return -1 if
+   reading or writing the log.gz file failed, or -2 if there was a memory
+   allocation failure. */
+local int log_compress(struct log *log, unsigned char *data, size_t len)
+{
+    int fd;
+    uint got, max;
+    ssize_t dict;
+    off_t end;
+    z_stream strm;
+    unsigned char buf[DICT];
+
+    /* compress and append compressed data */
+    if (len) {
+        /* set up for deflate, allocating memory */
+        strm.zalloc = Z_NULL;
+        strm.zfree = Z_NULL;
+        strm.opaque = Z_NULL;
+        if (deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, -15, 8,
+                         Z_DEFAULT_STRATEGY) != Z_OK)
+            return -2;
+
+        /* read in dictionary (last 32K of data that was compressed) */
+        strcpy(log->end, ".dict");
+        fd = open(log->path, O_RDONLY, 0);
+        if (fd >= 0) {
+            dict = read(fd, buf, DICT);
+            close(fd);
+            if (dict < 0) {
+                deflateEnd(&strm);
+                return -1;
+            }
+            if (dict)
+                deflateSetDictionary(&strm, buf, (uint)dict);
+        }
+        log_touch(log);
+
+        /* prime deflate with last bits of previous block, position write
+           pointer to write those bits and overwrite what follows */
+        if (lseek(log->fd, log->first - (log->back > 8 ? 2 : 1),
+                SEEK_SET) < 0 ||
+            read(log->fd, buf, 1) != 1 || lseek(log->fd, -1, SEEK_CUR) < 0) {
+            deflateEnd(&strm);
+            return -1;
+        }
+        deflatePrime(&strm, (8 - log->back) & 7, *buf);
+
+        /* compress, finishing with a partial non-last empty static block */
+        strm.next_in = data;
+        max = (((uint)0 - 1) >> 1) + 1; /* in case int smaller than size_t */
+        do {
+            strm.avail_in = len > max ? max : (uint)len;
+            len -= strm.avail_in;
+            do {
+                strm.avail_out = DICT;
+                strm.next_out = buf;
+                deflate(&strm, len ? Z_NO_FLUSH : Z_PARTIAL_FLUSH);
+                got = DICT - strm.avail_out;
+                if (got && write(log->fd, buf, got) != got) {
+                    deflateEnd(&strm);
+                    return -1;
+                }
+                log_touch(log);
+            } while (strm.avail_out == 0);
+        } while (len);
+        deflateEnd(&strm);
+        BAIL(5);
+
+        /* find start of empty static block -- scanning backwards the first one
+           bit is the second bit of the block, if the last byte is zero, then
+           we know the byte before that has a one in the top bit, since an
+           empty static block is ten bits long */
+        if ((log->first = lseek(log->fd, -1, SEEK_CUR)) < 0 ||
+            read(log->fd, buf, 1) != 1)
+            return -1;
+        log->first++;
+        if (*buf) {
+            log->back = 1;
+            while ((*buf & ((uint)1 << (8 - log->back++))) == 0)
+                ;       /* guaranteed to terminate, since *buf != 0 */
+        }
+        else
+            log->back = 10;
+
+        /* update compressed crc and length */
+        log->ccrc = log->tcrc;
+        log->clen = log->tlen;
+    }
+    else {
+        /* no data to compress -- fix up existing gzip stream */
+        log->tcrc = log->ccrc;
+        log->tlen = log->clen;
+    }
+
+    /* complete and truncate gzip stream */
+    log->last = log->first;
+    log->stored = 0;
+    PUT4(buf, log->tcrc);
+    PUT4(buf + 4, log->tlen);
+    if (log_last(log, 1) || write(log->fd, buf, 8) != 8 ||
+        (end = lseek(log->fd, 0, SEEK_CUR)) < 0 || ftruncate(log->fd, end))
+        return -1;
+    BAIL(6);
+
+    /* mark as being in the replace operation */
+    if (log_mark(log, REPLACE_OP))
+        return -1;
+
+    /* execute the replace operation and mark the file as done */
+    return log_replace(log);
+}
+
+/* log a repair record to the .repairs file */
+local void log_log(struct log *log, int op, char *record)
+{
+    time_t now;
+    FILE *rec;
+
+    now = time(NULL);
+    strcpy(log->end, ".repairs");
+    rec = fopen(log->path, "a");
+    if (rec == NULL)
+        return;
+    fprintf(rec, "%.24s %s recovery: %s\n", ctime(&now), op == APPEND_OP ?
+            "append" : (op == COMPRESS_OP ? "compress" : "replace"), record);
+    fclose(rec);
+    return;
+}
+
+/* Recover the interrupted operation op.  First read foo.add for recovering an
+   append or compress operation.  Return -1 if there was an error reading or
+   writing foo.gz or reading an existing foo.add, or -2 if there was a memory
+   allocation failure. */
+local int log_recover(struct log *log, int op)
+{
+    int fd, ret = 0;
+    unsigned char *data = NULL;
+    size_t len = 0;
+    struct stat st;
+
+    /* log recovery */
+    log_log(log, op, "start");
+
+    /* load foo.add file if expected and present */
+    if (op == APPEND_OP || op == COMPRESS_OP) {
+        strcpy(log->end, ".add");
+        if (stat(log->path, &st) == 0 && st.st_size) {
+            len = (size_t)(st.st_size);
+            if ((off_t)len != st.st_size ||
+                    (data = malloc(st.st_size)) == NULL) {
+                log_log(log, op, "allocation failure");
+                return -2;
+            }
+            if ((fd = open(log->path, O_RDONLY, 0)) < 0) {
+                log_log(log, op, ".add file read failure");
+                return -1;
+            }
+            ret = (size_t)read(fd, data, len) != len;
+            close(fd);
+            if (ret) {
+                log_log(log, op, ".add file read failure");
+                return -1;
+            }
+            log_log(log, op, "loaded .add file");
+        }
+        else
+            log_log(log, op, "missing .add file!");
+    }
+
+    /* recover the interrupted operation */
+    switch (op) {
+    case APPEND_OP:
+        ret = log_append(log, data, len);
+        break;
+    case COMPRESS_OP:
+        ret = log_compress(log, data, len);
+        break;
+    case REPLACE_OP:
+        ret = log_replace(log);
+    }
+
+    /* log status */
+    log_log(log, op, ret ? "failure" : "complete");
+
+    /* clean up */
+    if (data != NULL)
+        free(data);
+    return ret;
+}
+
+/* Close the foo.gz file (if open) and release the lock. */
+local void log_close(struct log *log)
+{
+    if (log->fd >= 0)
+        close(log->fd);
+    log->fd = -1;
+    log_unlock(log);
+}
+
+/* Open foo.gz, verify the header, and load the extra field contents, after
+   first creating the foo.lock file to gain exclusive access to the foo.*
+   files.  If foo.gz does not exist or is empty, then write the initial header,
+   extra, and body content of an empty foo.gz log file.  If there is an error
+   creating the lock file due to access restrictions, or an error reading or
+   writing the foo.gz file, or if the foo.gz file is not a proper log file for
+   this object (e.g. not a gzip file or does not contain the expected extra
+   field), then return true.  If there is an error, the lock is released.
+   Otherwise, the lock is left in place. */
+local int log_open(struct log *log)
+{
+    int op;
+
+    /* release open file resource if left over -- can occur if lock lost
+       between gzlog_open() and gzlog_write() */
+    if (log->fd >= 0)
+        close(log->fd);
+    log->fd = -1;
+
+    /* negotiate exclusive access */
+    if (log_lock(log) < 0)
+        return -1;
+
+    /* open the log file, foo.gz */
+    strcpy(log->end, ".gz");
+    log->fd = open(log->path, O_RDWR | O_CREAT, 0644);
+    if (log->fd < 0) {
+        log_close(log);
+        return -1;
+    }
+
+    /* if new, initialize foo.gz with an empty log, delete old dictionary */
+    if (lseek(log->fd, 0, SEEK_END) == 0) {
+        if (write(log->fd, log_gzhead, HEAD) != HEAD ||
+            write(log->fd, log_gzext, EXTRA) != EXTRA ||
+            write(log->fd, log_gzbody, BODY) != BODY) {
+            log_close(log);
+            return -1;
+        }
+        strcpy(log->end, ".dict");
+        unlink(log->path);
+    }
+
+    /* verify log file and load extra field information */
+    if ((op = log_head(log)) < 0) {
+        log_close(log);
+        return -1;
+    }
+
+    /* check for interrupted process and if so, recover */
+    if (op != NO_OP && log_recover(log, op)) {
+        log_close(log);
+        return -1;
+    }
+
+    /* touch the lock file to prevent another process from grabbing it */
+    log_touch(log);
+    return 0;
+}
+
+/* See gzlog.h for the description of the external methods below */
+gzlog *gzlog_open(char *path)
+{
+    size_t n;
+    struct log *log;
+
+    /* check arguments */
+    if (path == NULL || *path == 0)
+        return NULL;
+
+    /* allocate and initialize log structure */
+    log = malloc(sizeof(struct log));
+    if (log == NULL)
+        return NULL;
+    strcpy(log->id, LOGID);
+    log->fd = -1;
+
+    /* save path and end of path for name construction */
+    n = strlen(path);
+    log->path = malloc(n + 9);              /* allow for ".repairs" */
+    if (log->path == NULL) {
+        free(log);
+        return NULL;
+    }
+    strcpy(log->path, path);
+    log->end = log->path + n;
+
+    /* gain exclusive access and verify log file -- may perform a
+       recovery operation if needed */
+    if (log_open(log)) {
+        free(log->path);
+        free(log);
+        return NULL;
+    }
+
+    /* return pointer to log structure */
+    return log;
+}
+
+/* gzlog_compress() return values:
+    0: all good
+   -1: file i/o error (usually access issue)
+   -2: memory allocation failure
+   -3: invalid log pointer argument */
+int gzlog_compress(gzlog *logd)
+{
+    int fd, ret;
+    uint block;
+    size_t len, next;
+    unsigned char *data, buf[5];
+    struct log *log = logd;
+
+    /* check arguments */
+    if (log == NULL || strcmp(log->id, LOGID))
+        return -3;
+
+    /* see if we lost the lock -- if so get it again and reload the extra
+       field information (it probably changed), recover last operation if
+       necessary */
+    if (log_check(log) && log_open(log))
+        return -1;
+
+    /* create space for uncompressed data */
+    len = ((size_t)(log->last - log->first) & ~(((size_t)1 << 10) - 1)) +
+          log->stored;
+    if ((data = malloc(len)) == NULL)
+        return -2;
+
+    /* do statement here is just a cheap trick for error handling */
+    do {
+        /* read in the uncompressed data */
+        if (lseek(log->fd, log->first - 1, SEEK_SET) < 0)
+            break;
+        next = 0;
+        while (next < len) {
+            if (read(log->fd, buf, 5) != 5)
+                break;
+            block = PULL2(buf + 1);
+            if (next + block > len ||
+                read(log->fd, (char *)data + next, block) != block)
+                break;
+            next += block;
+        }
+        if (lseek(log->fd, 0, SEEK_CUR) != log->last + 4 + log->stored)
+            break;
+        log_touch(log);
+
+        /* write the uncompressed data to the .add file */
+        strcpy(log->end, ".add");
+        fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+        if (fd < 0)
+            break;
+        ret = (size_t)write(fd, data, len) != len;
+        if (ret | close(fd))
+            break;
+        log_touch(log);
+
+        /* write the dictionary for the next compress to the .temp file */
+        strcpy(log->end, ".temp");
+        fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+        if (fd < 0)
+            break;
+        next = DICT > len ? len : DICT;
+        ret = (size_t)write(fd, (char *)data + len - next, next) != next;
+        if (ret | close(fd))
+            break;
+        log_touch(log);
+
+        /* roll back to compressed data, mark the compress in progress */
+        log->last = log->first;
+        log->stored = 0;
+        if (log_mark(log, COMPRESS_OP))
+            break;
+        BAIL(7);
+
+        /* compress and append the data (clears mark) */
+        ret = log_compress(log, data, len);
+        free(data);
+        return ret;
+    } while (0);
+
+    /* broke out of do above on i/o error */
+    free(data);
+    return -1;
+}
+
+/* gzlog_write() return values:
+    0: all good
+   -1: file i/o error (usually access issue)
+   -2: memory allocation failure
+   -3: invalid log pointer argument */
+int gzlog_write(gzlog *logd, void *data, size_t len)
+{
+    int fd, ret;
+    struct log *log = logd;
+
+    /* check arguments */
+    if (log == NULL || strcmp(log->id, LOGID))
+        return -3;
+    if (data == NULL || len <= 0)
+        return 0;
+
+    /* see if we lost the lock -- if so get it again and reload the extra
+       field information (it probably changed), recover last operation if
+       necessary */
+    if (log_check(log) && log_open(log))
+        return -1;
+
+    /* create and write .add file */
+    strcpy(log->end, ".add");
+    fd = open(log->path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+    if (fd < 0)
+        return -1;
+    ret = (size_t)write(fd, data, len) != len;
+    if (ret | close(fd))
+        return -1;
+    log_touch(log);
+
+    /* mark log file with append in progress */
+    if (log_mark(log, APPEND_OP))
+        return -1;
+    BAIL(8);
+
+    /* append data (clears mark) */
+    if (log_append(log, data, len))
+        return -1;
+
+    /* check to see if it's time to compress -- if not, then done */
+    if (((log->last - log->first) >> 10) + (log->stored >> 10) < TRIGGER)
+        return 0;
+
+    /* time to compress */
+    return gzlog_compress(log);
+}
+
+/* gzlog_close() return values:
+    0: ok
+   -3: invalid log pointer argument */
+int gzlog_close(gzlog *logd)
+{
+    struct log *log = logd;
+
+    /* check arguments */
+    if (log == NULL || strcmp(log->id, LOGID))
+        return -3;
+
+    /* close the log file and release the lock */
+    log_close(log);
+
+    /* free structure and return */
+    if (log->path != NULL)
+        free(log->path);
+    strcpy(log->id, "bad");
+    free(log);
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzlog.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzlog.h
new file mode 100644
index 000000000..86f0cecba
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/gzlog.h
@@ -0,0 +1,91 @@
+/* gzlog.h
+  Copyright (C) 2004, 2008, 2012 Mark Adler, all rights reserved
+  version 2.2, 14 Aug 2012
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the author be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Mark Adler    madler@alumni.caltech.edu
+ */
+
+/* Version History:
+   1.0  26 Nov 2004  First version
+   2.0  25 Apr 2008  Complete redesign for recovery of interrupted operations
+                     Interface changed slightly in that now path is a prefix
+                     Compression now occurs as needed during gzlog_write()
+                     gzlog_write() now always leaves the log file as valid gzip
+   2.1   8 Jul 2012  Fix argument checks in gzlog_compress() and gzlog_write()
+   2.2  14 Aug 2012  Clean up signed comparisons
+ */
+
+/*
+   The gzlog object allows writing short messages to a gzipped log file,
+   opening the log file locked for small bursts, and then closing it.  The log
+   object works by appending stored (uncompressed) data to the gzip file until
+   1 MB has been accumulated.  At that time, the stored data is compressed, and
+   replaces the uncompressed data in the file.  The log file is truncated to
+   its new size at that time.  After each write operation, the log file is a
+   valid gzip file that can decompressed to recover what was written.
+
+   The gzlog operations can be interupted at any point due to an application or
+   system crash, and the log file will be recovered the next time the log is
+   opened with gzlog_open().
+ */
+
+#ifndef GZLOG_H
+#define GZLOG_H
+
+/* gzlog object type */
+typedef void gzlog;
+
+/* Open a gzlog object, creating the log file if it does not exist.  Return
+   NULL on error.  Note that gzlog_open() could take a while to complete if it
+   has to wait to verify that a lock is stale (possibly for five minutes), or
+   if there is significant contention with other instantiations of this object
+   when locking the resource.  path is the prefix of the file names created by
+   this object.  If path is "foo", then the log file will be "foo.gz", and
+   other auxiliary files will be created and destroyed during the process:
+   "foo.dict" for a compression dictionary, "foo.temp" for a temporary (next)
+   dictionary, "foo.add" for data being added or compressed, "foo.lock" for the
+   lock file, and "foo.repairs" to log recovery operations performed due to
+   interrupted gzlog operations.  A gzlog_open() followed by a gzlog_close()
+   will recover a previously interrupted operation, if any. */
+gzlog *gzlog_open(char *path);
+
+/* Write to a gzlog object.  Return zero on success, -1 if there is a file i/o
+   error on any of the gzlog files (this should not happen if gzlog_open()
+   succeeded, unless the device has run out of space or leftover auxiliary
+   files have permissions or ownership that prevent their use), -2 if there is
+   a memory allocation failure, or -3 if the log argument is invalid (e.g. if
+   it was not created by gzlog_open()).  This function will write data to the
+   file uncompressed, until 1 MB has been accumulated, at which time that data
+   will be compressed.  The log file will be a valid gzip file upon successful
+   return. */
+int gzlog_write(gzlog *log, void *data, size_t len);
+
+/* Force compression of any uncompressed data in the log.  This should be used
+   sparingly, if at all.  The main application would be when a log file will
+   not be appended to again.  If this is used to compress frequently while
+   appending, it will both significantly increase the execution time and
+   reduce the compression ratio.  The return codes are the same as for
+   gzlog_write(). */
+int gzlog_compress(gzlog *log);
+
+/* Close a gzlog object.  Return zero on success, -3 if the log argument is
+   invalid.  The log object is freed, and so cannot be referenced again. */
+int gzlog_close(gzlog *log);
+
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zlib_how.html b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zlib_how.html
new file mode 100644
index 000000000..444ff1c9a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zlib_how.html
@@ -0,0 +1,545 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
+  "http://www.w3.org/TR/REC-html40/loose.dtd">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>zlib Usage Example</title>
+<!--  Copyright (c) 2004, 2005 Mark Adler.  -->
+</head>
+<body bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#00A000">
+<h2 align="center"> zlib Usage Example </h2>
+We often get questions about how the <tt>deflate()</tt> and <tt>inflate()</tt> functions should be used.
+Users wonder when they should provide more input, when they should use more output,
+what to do with a <tt>Z_BUF_ERROR</tt>, how to make sure the process terminates properly, and
+so on.  So for those who have read <tt>zlib.h</tt> (a few times), and
+would like further edification, below is an annotated example in C of simple routines to compress and decompress
+from an input file to an output file using <tt>deflate()</tt> and <tt>inflate()</tt> respectively.  The
+annotations are interspersed between lines of the code.  So please read between the lines.
+We hope this helps explain some of the intricacies of <em>zlib</em>.
+<p>
+Without further adieu, here is the program <a href="zpipe.c"><tt>zpipe.c</tt></a>:
+<pre><b>
+/* zpipe.c: example of proper use of zlib's inflate() and deflate()
+   Not copyrighted -- provided to the public domain
+   Version 1.4  11 December 2005  Mark Adler */
+
+/* Version history:
+   1.0  30 Oct 2004  First version
+   1.1   8 Nov 2004  Add void casting for unused return values
+                     Use switch statement for inflate() return values
+   1.2   9 Nov 2004  Add assertions to document zlib guarantees
+   1.3   6 Apr 2005  Remove incorrect assertion in inf()
+   1.4  11 Dec 2005  Add hack to avoid MSDOS end-of-line conversions
+                     Avoid some compiler warnings for input and output buffers
+ */
+</b></pre><!-- -->
+We now include the header files for the required definitions.  From
+<tt>stdio.h</tt> we use <tt>fopen()</tt>, <tt>fread()</tt>, <tt>fwrite()</tt>,
+<tt>feof()</tt>, <tt>ferror()</tt>, and <tt>fclose()</tt> for file i/o, and
+<tt>fputs()</tt> for error messages.  From <tt>string.h</tt> we use
+<tt>strcmp()</tt> for command line argument processing.
+From <tt>assert.h</tt> we use the <tt>assert()</tt> macro.
+From <tt>zlib.h</tt>
+we use the basic compression functions <tt>deflateInit()</tt>,
+<tt>deflate()</tt>, and <tt>deflateEnd()</tt>, and the basic decompression
+functions <tt>inflateInit()</tt>, <tt>inflate()</tt>, and
+<tt>inflateEnd()</tt>.
+<pre><b>
+#include &lt;stdio.h&gt;
+#include &lt;string.h&gt;
+#include &lt;assert.h&gt;
+#include "zlib.h"
+</b></pre><!-- -->
+This is an ugly hack required to avoid corruption of the input and output data on
+Windows/MS-DOS systems.  Without this, those systems would assume that the input and output
+files are text, and try to convert the end-of-line characters from one standard to
+another.  That would corrupt binary data, and in particular would render the compressed data unusable.
+This sets the input and output to binary which suppresses the end-of-line conversions.
+<tt>SET_BINARY_MODE()</tt> will be used later on <tt>stdin</tt> and <tt>stdout</tt>, at the beginning of <tt>main()</tt>.
+<pre><b>
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include &lt;fcntl.h&gt;
+#  include &lt;io.h&gt;
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+</b></pre><!-- -->
+<tt>CHUNK</tt> is simply the buffer size for feeding data to and pulling data
+from the <em>zlib</em> routines.  Larger buffer sizes would be more efficient,
+especially for <tt>inflate()</tt>.  If the memory is available, buffers sizes
+on the order of 128K or 256K bytes should be used.
+<pre><b>
+#define CHUNK 16384
+</b></pre><!-- -->
+The <tt>def()</tt> routine compresses data from an input file to an output file.  The output data
+will be in the <em>zlib</em> format, which is different from the <em>gzip</em> or <em>zip</em>
+formats.  The <em>zlib</em> format has a very small header of only two bytes to identify it as
+a <em>zlib</em> stream and to provide decoding information, and a four-byte trailer with a fast
+check value to verify the integrity of the uncompressed data after decoding.
+<pre><b>
+/* Compress from file source to file dest until EOF on source.
+   def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_STREAM_ERROR if an invalid compression
+   level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
+   version of the library linked do not match, or Z_ERRNO if there is
+   an error reading or writing the files. */
+int def(FILE *source, FILE *dest, int level)
+{
+</b></pre>
+Here are the local variables for <tt>def()</tt>.  <tt>ret</tt> will be used for <em>zlib</em>
+return codes.  <tt>flush</tt> will keep track of the current flushing state for <tt>deflate()</tt>,
+which is either no flushing, or flush to completion after the end of the input file is reached.
+<tt>have</tt> is the amount of data returned from <tt>deflate()</tt>.  The <tt>strm</tt> structure
+is used to pass information to and from the <em>zlib</em> routines, and to maintain the
+<tt>deflate()</tt> state.  <tt>in</tt> and <tt>out</tt> are the input and output buffers for
+<tt>deflate()</tt>.
+<pre><b>
+    int ret, flush;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+</b></pre><!-- -->
+The first thing we do is to initialize the <em>zlib</em> state for compression using
+<tt>deflateInit()</tt>.  This must be done before the first use of <tt>deflate()</tt>.
+The <tt>zalloc</tt>, <tt>zfree</tt>, and <tt>opaque</tt> fields in the <tt>strm</tt>
+structure must be initialized before calling <tt>deflateInit()</tt>.  Here they are
+set to the <em>zlib</em> constant <tt>Z_NULL</tt> to request that <em>zlib</em> use
+the default memory allocation routines.  An application may also choose to provide
+custom memory allocation routines here.  <tt>deflateInit()</tt> will allocate on the
+order of 256K bytes for the internal state.
+(See <a href="zlib_tech.html"><em>zlib Technical Details</em></a>.)
+<p>
+<tt>deflateInit()</tt> is called with a pointer to the structure to be initialized and
+the compression level, which is an integer in the range of -1 to 9.  Lower compression
+levels result in faster execution, but less compression.  Higher levels result in
+greater compression, but slower execution.  The <em>zlib</em> constant Z_DEFAULT_COMPRESSION,
+equal to -1,
+provides a good compromise between compression and speed and is equivalent to level 6.
+Level 0 actually does no compression at all, and in fact expands the data slightly to produce
+the <em>zlib</em> format (it is not a byte-for-byte copy of the input).
+More advanced applications of <em>zlib</em>
+may use <tt>deflateInit2()</tt> here instead.  Such an application may want to reduce how
+much memory will be used, at some price in compression.  Or it may need to request a
+<em>gzip</em> header and trailer instead of a <em>zlib</em> header and trailer, or raw
+encoding with no header or trailer at all.
+<p>
+We must check the return value of <tt>deflateInit()</tt> against the <em>zlib</em> constant
+<tt>Z_OK</tt> to make sure that it was able to
+allocate memory for the internal state, and that the provided arguments were valid.
+<tt>deflateInit()</tt> will also check that the version of <em>zlib</em> that the <tt>zlib.h</tt>
+file came from matches the version of <em>zlib</em> actually linked with the program.  This
+is especially important for environments in which <em>zlib</em> is a shared library.
+<p>
+Note that an application can initialize multiple, independent <em>zlib</em> streams, which can
+operate in parallel.  The state information maintained in the structure allows the <em>zlib</em>
+routines to be reentrant.
+<pre><b>
+    /* allocate deflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    ret = deflateInit(&amp;strm, level);
+    if (ret != Z_OK)
+        return ret;
+</b></pre><!-- -->
+With the pleasantries out of the way, now we can get down to business.  The outer <tt>do</tt>-loop
+reads all of the input file and exits at the bottom of the loop once end-of-file is reached.
+This loop contains the only call of <tt>deflate()</tt>.  So we must make sure that all of the
+input data has been processed and that all of the output data has been generated and consumed
+before we fall out of the loop at the bottom.
+<pre><b>
+    /* compress until end of file */
+    do {
+</b></pre>
+We start off by reading data from the input file.  The number of bytes read is put directly
+into <tt>avail_in</tt>, and a pointer to those bytes is put into <tt>next_in</tt>.  We also
+check to see if end-of-file on the input has been reached.  If we are at the end of file, then <tt>flush</tt> is set to the
+<em>zlib</em> constant <tt>Z_FINISH</tt>, which is later passed to <tt>deflate()</tt> to
+indicate that this is the last chunk of input data to compress.  We need to use <tt>feof()</tt>
+to check for end-of-file as opposed to seeing if fewer than <tt>CHUNK</tt> bytes have been read.  The
+reason is that if the input file length is an exact multiple of <tt>CHUNK</tt>, we will miss
+the fact that we got to the end-of-file, and not know to tell <tt>deflate()</tt> to finish
+up the compressed stream.  If we are not yet at the end of the input, then the <em>zlib</em>
+constant <tt>Z_NO_FLUSH</tt> will be passed to <tt>deflate</tt> to indicate that we are still
+in the middle of the uncompressed data.
+<p>
+If there is an error in reading from the input file, the process is aborted with
+<tt>deflateEnd()</tt> being called to free the allocated <em>zlib</em> state before returning
+the error.  We wouldn't want a memory leak, now would we?  <tt>deflateEnd()</tt> can be called
+at any time after the state has been initialized.  Once that's done, <tt>deflateInit()</tt> (or
+<tt>deflateInit2()</tt>) would have to be called to start a new compression process.  There is
+no point here in checking the <tt>deflateEnd()</tt> return code.  The deallocation can't fail.
+<pre><b>
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)deflateEnd(&amp;strm);
+            return Z_ERRNO;
+        }
+        flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
+        strm.next_in = in;
+</b></pre><!-- -->
+The inner <tt>do</tt>-loop passes our chunk of input data to <tt>deflate()</tt>, and then
+keeps calling <tt>deflate()</tt> until it is done producing output.  Once there is no more
+new output, <tt>deflate()</tt> is guaranteed to have consumed all of the input, i.e.,
+<tt>avail_in</tt> will be zero.
+<pre><b>
+        /* run deflate() on input until output buffer not full, finish
+           compression if all of source has been read in */
+        do {
+</b></pre>
+Output space is provided to <tt>deflate()</tt> by setting <tt>avail_out</tt> to the number
+of available output bytes and <tt>next_out</tt> to a pointer to that space.
+<pre><b>
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+</b></pre>
+Now we call the compression engine itself, <tt>deflate()</tt>.  It takes as many of the
+<tt>avail_in</tt> bytes at <tt>next_in</tt> as it can process, and writes as many as
+<tt>avail_out</tt> bytes to <tt>next_out</tt>.  Those counters and pointers are then
+updated past the input data consumed and the output data written.  It is the amount of
+output space available that may limit how much input is consumed.
+Hence the inner loop to make sure that
+all of the input is consumed by providing more output space each time.  Since <tt>avail_in</tt>
+and <tt>next_in</tt> are updated by <tt>deflate()</tt>, we don't have to mess with those
+between <tt>deflate()</tt> calls until it's all used up.
+<p>
+The parameters to <tt>deflate()</tt> are a pointer to the <tt>strm</tt> structure containing
+the input and output information and the internal compression engine state, and a parameter
+indicating whether and how to flush data to the output.  Normally <tt>deflate</tt> will consume
+several K bytes of input data before producing any output (except for the header), in order
+to accumulate statistics on the data for optimum compression.  It will then put out a burst of
+compressed data, and proceed to consume more input before the next burst.  Eventually,
+<tt>deflate()</tt>
+must be told to terminate the stream, complete the compression with provided input data, and
+write out the trailer check value.  <tt>deflate()</tt> will continue to compress normally as long
+as the flush parameter is <tt>Z_NO_FLUSH</tt>.  Once the <tt>Z_FINISH</tt> parameter is provided,
+<tt>deflate()</tt> will begin to complete the compressed output stream.  However depending on how
+much output space is provided, <tt>deflate()</tt> may have to be called several times until it
+has provided the complete compressed stream, even after it has consumed all of the input.  The flush
+parameter must continue to be <tt>Z_FINISH</tt> for those subsequent calls.
+<p>
+There are other values of the flush parameter that are used in more advanced applications.  You can
+force <tt>deflate()</tt> to produce a burst of output that encodes all of the input data provided
+so far, even if it wouldn't have otherwise, for example to control data latency on a link with
+compressed data.  You can also ask that <tt>deflate()</tt> do that as well as erase any history up to
+that point so that what follows can be decompressed independently, for example for random access
+applications.  Both requests will degrade compression by an amount depending on how often such
+requests are made.
+<p>
+<tt>deflate()</tt> has a return value that can indicate errors, yet we do not check it here.  Why
+not?  Well, it turns out that <tt>deflate()</tt> can do no wrong here.  Let's go through
+<tt>deflate()</tt>'s return values and dispense with them one by one.  The possible values are
+<tt>Z_OK</tt>, <tt>Z_STREAM_END</tt>, <tt>Z_STREAM_ERROR</tt>, or <tt>Z_BUF_ERROR</tt>.  <tt>Z_OK</tt>
+is, well, ok.  <tt>Z_STREAM_END</tt> is also ok and will be returned for the last call of
+<tt>deflate()</tt>.  This is already guaranteed by calling <tt>deflate()</tt> with <tt>Z_FINISH</tt>
+until it has no more output.  <tt>Z_STREAM_ERROR</tt> is only possible if the stream is not
+initialized properly, but we did initialize it properly.  There is no harm in checking for
+<tt>Z_STREAM_ERROR</tt> here, for example to check for the possibility that some
+other part of the application inadvertently clobbered the memory containing the <em>zlib</em> state.
+<tt>Z_BUF_ERROR</tt> will be explained further below, but
+suffice it to say that this is simply an indication that <tt>deflate()</tt> could not consume
+more input or produce more output.  <tt>deflate()</tt> can be called again with more output space
+or more available input, which it will be in this code.
+<pre><b>
+            ret = deflate(&amp;strm, flush);    /* no bad return value */
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+</b></pre>
+Now we compute how much output <tt>deflate()</tt> provided on the last call, which is the
+difference between how much space was provided before the call, and how much output space
+is still available after the call.  Then that data, if any, is written to the output file.
+We can then reuse the output buffer for the next call of <tt>deflate()</tt>.  Again if there
+is a file i/o error, we call <tt>deflateEnd()</tt> before returning to avoid a memory leak.
+<pre><b>
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)deflateEnd(&amp;strm);
+                return Z_ERRNO;
+            }
+</b></pre>
+The inner <tt>do</tt>-loop is repeated until the last <tt>deflate()</tt> call fails to fill the
+provided output buffer.  Then we know that <tt>deflate()</tt> has done as much as it can with
+the provided input, and that all of that input has been consumed.  We can then fall out of this
+loop and reuse the input buffer.
+<p>
+The way we tell that <tt>deflate()</tt> has no more output is by seeing that it did not fill
+the output buffer, leaving <tt>avail_out</tt> greater than zero.  However suppose that
+<tt>deflate()</tt> has no more output, but just so happened to exactly fill the output buffer!
+<tt>avail_out</tt> is zero, and we can't tell that <tt>deflate()</tt> has done all it can.
+As far as we know, <tt>deflate()</tt>
+has more output for us.  So we call it again.  But now <tt>deflate()</tt> produces no output
+at all, and <tt>avail_out</tt> remains unchanged as <tt>CHUNK</tt>.  That <tt>deflate()</tt> call
+wasn't able to do anything, either consume input or produce output, and so it returns
+<tt>Z_BUF_ERROR</tt>.  (See, I told you I'd cover this later.)  However this is not a problem at
+all.  Now we finally have the desired indication that <tt>deflate()</tt> is really done,
+and so we drop out of the inner loop to provide more input to <tt>deflate()</tt>.
+<p>
+With <tt>flush</tt> set to <tt>Z_FINISH</tt>, this final set of <tt>deflate()</tt> calls will
+complete the output stream.  Once that is done, subsequent calls of <tt>deflate()</tt> would return
+<tt>Z_STREAM_ERROR</tt> if the flush parameter is not <tt>Z_FINISH</tt>, and do no more processing
+until the state is reinitialized.
+<p>
+Some applications of <em>zlib</em> have two loops that call <tt>deflate()</tt>
+instead of the single inner loop we have here.  The first loop would call
+without flushing and feed all of the data to <tt>deflate()</tt>.  The second loop would call
+<tt>deflate()</tt> with no more
+data and the <tt>Z_FINISH</tt> parameter to complete the process.  As you can see from this
+example, that can be avoided by simply keeping track of the current flush state.
+<pre><b>
+        } while (strm.avail_out == 0);
+        assert(strm.avail_in == 0);     /* all input will be used */
+</b></pre><!-- -->
+Now we check to see if we have already processed all of the input file.  That information was
+saved in the <tt>flush</tt> variable, so we see if that was set to <tt>Z_FINISH</tt>.  If so,
+then we're done and we fall out of the outer loop.  We're guaranteed to get <tt>Z_STREAM_END</tt>
+from the last <tt>deflate()</tt> call, since we ran it until the last chunk of input was
+consumed and all of the output was generated.
+<pre><b>
+        /* done when last data in file processed */
+    } while (flush != Z_FINISH);
+    assert(ret == Z_STREAM_END);        /* stream will be complete */
+</b></pre><!-- -->
+The process is complete, but we still need to deallocate the state to avoid a memory leak
+(or rather more like a memory hemorrhage if you didn't do this).  Then
+finally we can return with a happy return value.
+<pre><b>
+    /* clean up and return */
+    (void)deflateEnd(&amp;strm);
+    return Z_OK;
+}
+</b></pre><!-- -->
+Now we do the same thing for decompression in the <tt>inf()</tt> routine. <tt>inf()</tt>
+decompresses what is hopefully a valid <em>zlib</em> stream from the input file and writes the
+uncompressed data to the output file.  Much of the discussion above for <tt>def()</tt>
+applies to <tt>inf()</tt> as well, so the discussion here will focus on the differences between
+the two.
+<pre><b>
+/* Decompress from file source to file dest until stream ends or EOF.
+   inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_DATA_ERROR if the deflate data is
+   invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
+   the version of the library linked do not match, or Z_ERRNO if there
+   is an error reading or writing the files. */
+int inf(FILE *source, FILE *dest)
+{
+</b></pre>
+The local variables have the same functionality as they do for <tt>def()</tt>.  The
+only difference is that there is no <tt>flush</tt> variable, since <tt>inflate()</tt>
+can tell from the <em>zlib</em> stream itself when the stream is complete.
+<pre><b>
+    int ret;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+</b></pre><!-- -->
+The initialization of the state is the same, except that there is no compression level,
+of course, and two more elements of the structure are initialized.  <tt>avail_in</tt>
+and <tt>next_in</tt> must be initialized before calling <tt>inflateInit()</tt>.  This
+is because the application has the option to provide the start of the zlib stream in
+order for <tt>inflateInit()</tt> to have access to information about the compression
+method to aid in memory allocation.  In the current implementation of <em>zlib</em>
+(up through versions 1.2.x), the method-dependent memory allocations are deferred to the first call of
+<tt>inflate()</tt> anyway.  However those fields must be initialized since later versions
+of <em>zlib</em> that provide more compression methods may take advantage of this interface.
+In any case, no decompression is performed by <tt>inflateInit()</tt>, so the
+<tt>avail_out</tt> and <tt>next_out</tt> fields do not need to be initialized before calling.
+<p>
+Here <tt>avail_in</tt> is set to zero and <tt>next_in</tt> is set to <tt>Z_NULL</tt> to
+indicate that no input data is being provided.
+<pre><b>
+    /* allocate inflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&amp;strm);
+    if (ret != Z_OK)
+        return ret;
+</b></pre><!-- -->
+The outer <tt>do</tt>-loop decompresses input until <tt>inflate()</tt> indicates
+that it has reached the end of the compressed data and has produced all of the uncompressed
+output.  This is in contrast to <tt>def()</tt> which processes all of the input file.
+If end-of-file is reached before the compressed data self-terminates, then the compressed
+data is incomplete and an error is returned.
+<pre><b>
+    /* decompress until deflate stream ends or end of file */
+    do {
+</b></pre>
+We read input data and set the <tt>strm</tt> structure accordingly.  If we've reached the
+end of the input file, then we leave the outer loop and report an error, since the
+compressed data is incomplete.  Note that we may read more data than is eventually consumed
+by <tt>inflate()</tt>, if the input file continues past the <em>zlib</em> stream.
+For applications where <em>zlib</em> streams are embedded in other data, this routine would
+need to be modified to return the unused data, or at least indicate how much of the input
+data was not used, so the application would know where to pick up after the <em>zlib</em> stream.
+<pre><b>
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)inflateEnd(&amp;strm);
+            return Z_ERRNO;
+        }
+        if (strm.avail_in == 0)
+            break;
+        strm.next_in = in;
+</b></pre><!-- -->
+The inner <tt>do</tt>-loop has the same function it did in <tt>def()</tt>, which is to
+keep calling <tt>inflate()</tt> until has generated all of the output it can with the
+provided input.
+<pre><b>
+        /* run inflate() on input until output buffer not full */
+        do {
+</b></pre>
+Just like in <tt>def()</tt>, the same output space is provided for each call of <tt>inflate()</tt>.
+<pre><b>
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+</b></pre>
+Now we run the decompression engine itself.  There is no need to adjust the flush parameter, since
+the <em>zlib</em> format is self-terminating. The main difference here is that there are
+return values that we need to pay attention to.  <tt>Z_DATA_ERROR</tt>
+indicates that <tt>inflate()</tt> detected an error in the <em>zlib</em> compressed data format,
+which means that either the data is not a <em>zlib</em> stream to begin with, or that the data was
+corrupted somewhere along the way since it was compressed.  The other error to be processed is
+<tt>Z_MEM_ERROR</tt>, which can occur since memory allocation is deferred until <tt>inflate()</tt>
+needs it, unlike <tt>deflate()</tt>, whose memory is allocated at the start by <tt>deflateInit()</tt>.
+<p>
+Advanced applications may use
+<tt>deflateSetDictionary()</tt> to prime <tt>deflate()</tt> with a set of likely data to improve the
+first 32K or so of compression.  This is noted in the <em>zlib</em> header, so <tt>inflate()</tt>
+requests that that dictionary be provided before it can start to decompress.  Without the dictionary,
+correct decompression is not possible.  For this routine, we have no idea what the dictionary is,
+so the <tt>Z_NEED_DICT</tt> indication is converted to a <tt>Z_DATA_ERROR</tt>.
+<p>
+<tt>inflate()</tt> can also return <tt>Z_STREAM_ERROR</tt>, which should not be possible here,
+but could be checked for as noted above for <tt>def()</tt>.  <tt>Z_BUF_ERROR</tt> does not need to be
+checked for here, for the same reasons noted for <tt>def()</tt>.  <tt>Z_STREAM_END</tt> will be
+checked for later.
+<pre><b>
+            ret = inflate(&amp;strm, Z_NO_FLUSH);
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+            switch (ret) {
+            case Z_NEED_DICT:
+                ret = Z_DATA_ERROR;     /* and fall through */
+            case Z_DATA_ERROR:
+            case Z_MEM_ERROR:
+                (void)inflateEnd(&amp;strm);
+                return ret;
+            }
+</b></pre>
+The output of <tt>inflate()</tt> is handled identically to that of <tt>deflate()</tt>.
+<pre><b>
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)inflateEnd(&amp;strm);
+                return Z_ERRNO;
+            }
+</b></pre>
+The inner <tt>do</tt>-loop ends when <tt>inflate()</tt> has no more output as indicated
+by not filling the output buffer, just as for <tt>deflate()</tt>.  In this case, we cannot
+assert that <tt>strm.avail_in</tt> will be zero, since the deflate stream may end before the file
+does.
+<pre><b>
+        } while (strm.avail_out == 0);
+</b></pre><!-- -->
+The outer <tt>do</tt>-loop ends when <tt>inflate()</tt> reports that it has reached the
+end of the input <em>zlib</em> stream, has completed the decompression and integrity
+check, and has provided all of the output.  This is indicated by the <tt>inflate()</tt>
+return value <tt>Z_STREAM_END</tt>.  The inner loop is guaranteed to leave <tt>ret</tt>
+equal to <tt>Z_STREAM_END</tt> if the last chunk of the input file read contained the end
+of the <em>zlib</em> stream.  So if the return value is not <tt>Z_STREAM_END</tt>, the
+loop continues to read more input.
+<pre><b>
+        /* done when inflate() says it's done */
+    } while (ret != Z_STREAM_END);
+</b></pre><!-- -->
+At this point, decompression successfully completed, or we broke out of the loop due to no
+more data being available from the input file.  If the last <tt>inflate()</tt> return value
+is not <tt>Z_STREAM_END</tt>, then the <em>zlib</em> stream was incomplete and a data error
+is returned.  Otherwise, we return with a happy return value.  Of course, <tt>inflateEnd()</tt>
+is called first to avoid a memory leak.
+<pre><b>
+    /* clean up and return */
+    (void)inflateEnd(&amp;strm);
+    return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
+}
+</b></pre><!-- -->
+That ends the routines that directly use <em>zlib</em>.  The following routines make this
+a command-line program by running data through the above routines from <tt>stdin</tt> to
+<tt>stdout</tt>, and handling any errors reported by <tt>def()</tt> or <tt>inf()</tt>.
+<p>
+<tt>zerr()</tt> is used to interpret the possible error codes from <tt>def()</tt>
+and <tt>inf()</tt>, as detailed in their comments above, and print out an error message.
+Note that these are only a subset of the possible return values from <tt>deflate()</tt>
+and <tt>inflate()</tt>.
+<pre><b>
+/* report a zlib or i/o error */
+void zerr(int ret)
+{
+    fputs("zpipe: ", stderr);
+    switch (ret) {
+    case Z_ERRNO:
+        if (ferror(stdin))
+            fputs("error reading stdin\n", stderr);
+        if (ferror(stdout))
+            fputs("error writing stdout\n", stderr);
+        break;
+    case Z_STREAM_ERROR:
+        fputs("invalid compression level\n", stderr);
+        break;
+    case Z_DATA_ERROR:
+        fputs("invalid or incomplete deflate data\n", stderr);
+        break;
+    case Z_MEM_ERROR:
+        fputs("out of memory\n", stderr);
+        break;
+    case Z_VERSION_ERROR:
+        fputs("zlib version mismatch!\n", stderr);
+    }
+}
+</b></pre><!-- -->
+Here is the <tt>main()</tt> routine used to test <tt>def()</tt> and <tt>inf()</tt>.  The
+<tt>zpipe</tt> command is simply a compression pipe from <tt>stdin</tt> to <tt>stdout</tt>, if
+no arguments are given, or it is a decompression pipe if <tt>zpipe -d</tt> is used.  If any other
+arguments are provided, no compression or decompression is performed.  Instead a usage
+message is displayed.  Examples are <tt>zpipe < foo.txt > foo.txt.z</tt> to compress, and
+<tt>zpipe -d < foo.txt.z > foo.txt</tt> to decompress.
+<pre><b>
+/* compress or decompress from stdin to stdout */
+int main(int argc, char **argv)
+{
+    int ret;
+
+    /* avoid end-of-line conversions */
+    SET_BINARY_MODE(stdin);
+    SET_BINARY_MODE(stdout);
+
+    /* do compression if no arguments */
+    if (argc == 1) {
+        ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* do decompression if -d specified */
+    else if (argc == 2 &amp;&amp; strcmp(argv[1], "-d") == 0) {
+        ret = inf(stdin, stdout);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* otherwise, report usage */
+    else {
+        fputs("zpipe usage: zpipe [-d] &lt; source &gt; dest\n", stderr);
+        return 1;
+    }
+}
+</b></pre>
+<hr>
+<i>Copyright (c) 2004, 2005 by Mark Adler<br>Last modified 11 December 2005</i>
+</body>
+</html>
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zpipe.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zpipe.c
new file mode 100644
index 000000000..83535d169
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zpipe.c
@@ -0,0 +1,205 @@
+/* zpipe.c: example of proper use of zlib's inflate() and deflate()
+   Not copyrighted -- provided to the public domain
+   Version 1.4  11 December 2005  Mark Adler */
+
+/* Version history:
+   1.0  30 Oct 2004  First version
+   1.1   8 Nov 2004  Add void casting for unused return values
+                     Use switch statement for inflate() return values
+   1.2   9 Nov 2004  Add assertions to document zlib guarantees
+   1.3   6 Apr 2005  Remove incorrect assertion in inf()
+   1.4  11 Dec 2005  Add hack to avoid MSDOS end-of-line conversions
+                     Avoid some compiler warnings for input and output buffers
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "zlib.h"
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#define CHUNK 16384
+
+/* Compress from file source to file dest until EOF on source.
+   def() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_STREAM_ERROR if an invalid compression
+   level is supplied, Z_VERSION_ERROR if the version of zlib.h and the
+   version of the library linked do not match, or Z_ERRNO if there is
+   an error reading or writing the files. */
+int def(FILE *source, FILE *dest, int level)
+{
+    int ret, flush;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+
+    /* allocate deflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    ret = deflateInit(&strm, level);
+    if (ret != Z_OK)
+        return ret;
+
+    /* compress until end of file */
+    do {
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)deflateEnd(&strm);
+            return Z_ERRNO;
+        }
+        flush = feof(source) ? Z_FINISH : Z_NO_FLUSH;
+        strm.next_in = in;
+
+        /* run deflate() on input until output buffer not full, finish
+           compression if all of source has been read in */
+        do {
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+            ret = deflate(&strm, flush);    /* no bad return value */
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)deflateEnd(&strm);
+                return Z_ERRNO;
+            }
+        } while (strm.avail_out == 0);
+        assert(strm.avail_in == 0);     /* all input will be used */
+
+        /* done when last data in file processed */
+    } while (flush != Z_FINISH);
+    assert(ret == Z_STREAM_END);        /* stream will be complete */
+
+    /* clean up and return */
+    (void)deflateEnd(&strm);
+    return Z_OK;
+}
+
+/* Decompress from file source to file dest until stream ends or EOF.
+   inf() returns Z_OK on success, Z_MEM_ERROR if memory could not be
+   allocated for processing, Z_DATA_ERROR if the deflate data is
+   invalid or incomplete, Z_VERSION_ERROR if the version of zlib.h and
+   the version of the library linked do not match, or Z_ERRNO if there
+   is an error reading or writing the files. */
+int inf(FILE *source, FILE *dest)
+{
+    int ret;
+    unsigned have;
+    z_stream strm;
+    unsigned char in[CHUNK];
+    unsigned char out[CHUNK];
+
+    /* allocate inflate state */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&strm);
+    if (ret != Z_OK)
+        return ret;
+
+    /* decompress until deflate stream ends or end of file */
+    do {
+        strm.avail_in = fread(in, 1, CHUNK, source);
+        if (ferror(source)) {
+            (void)inflateEnd(&strm);
+            return Z_ERRNO;
+        }
+        if (strm.avail_in == 0)
+            break;
+        strm.next_in = in;
+
+        /* run inflate() on input until output buffer not full */
+        do {
+            strm.avail_out = CHUNK;
+            strm.next_out = out;
+            ret = inflate(&strm, Z_NO_FLUSH);
+            assert(ret != Z_STREAM_ERROR);  /* state not clobbered */
+            switch (ret) {
+            case Z_NEED_DICT:
+                ret = Z_DATA_ERROR;     /* and fall through */
+            case Z_DATA_ERROR:
+            case Z_MEM_ERROR:
+                (void)inflateEnd(&strm);
+                return ret;
+            }
+            have = CHUNK - strm.avail_out;
+            if (fwrite(out, 1, have, dest) != have || ferror(dest)) {
+                (void)inflateEnd(&strm);
+                return Z_ERRNO;
+            }
+        } while (strm.avail_out == 0);
+
+        /* done when inflate() says it's done */
+    } while (ret != Z_STREAM_END);
+
+    /* clean up and return */
+    (void)inflateEnd(&strm);
+    return ret == Z_STREAM_END ? Z_OK : Z_DATA_ERROR;
+}
+
+/* report a zlib or i/o error */
+void zerr(int ret)
+{
+    fputs("zpipe: ", stderr);
+    switch (ret) {
+    case Z_ERRNO:
+        if (ferror(stdin))
+            fputs("error reading stdin\n", stderr);
+        if (ferror(stdout))
+            fputs("error writing stdout\n", stderr);
+        break;
+    case Z_STREAM_ERROR:
+        fputs("invalid compression level\n", stderr);
+        break;
+    case Z_DATA_ERROR:
+        fputs("invalid or incomplete deflate data\n", stderr);
+        break;
+    case Z_MEM_ERROR:
+        fputs("out of memory\n", stderr);
+        break;
+    case Z_VERSION_ERROR:
+        fputs("zlib version mismatch!\n", stderr);
+    }
+}
+
+/* compress or decompress from stdin to stdout */
+int main(int argc, char **argv)
+{
+    int ret;
+
+    /* avoid end-of-line conversions */
+    SET_BINARY_MODE(stdin);
+    SET_BINARY_MODE(stdout);
+
+    /* do compression if no arguments */
+    if (argc == 1) {
+        ret = def(stdin, stdout, Z_DEFAULT_COMPRESSION);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* do decompression if -d specified */
+    else if (argc == 2 && strcmp(argv[1], "-d") == 0) {
+        ret = inf(stdin, stdout);
+        if (ret != Z_OK)
+            zerr(ret);
+        return ret;
+    }
+
+    /* otherwise, report usage */
+    else {
+        fputs("zpipe usage: zpipe [-d] < source > dest\n", stderr);
+        return 1;
+    }
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zran.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zran.c
new file mode 100644
index 000000000..4fec6594a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/examples/zran.c
@@ -0,0 +1,409 @@
+/* zran.c -- example of zlib/gzip stream indexing and random access
+ * Copyright (C) 2005, 2012 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+   Version 1.1  29 Sep 2012  Mark Adler */
+
+/* Version History:
+ 1.0  29 May 2005  First version
+ 1.1  29 Sep 2012  Fix memory reallocation error
+ */
+
+/* Illustrate the use of Z_BLOCK, inflatePrime(), and inflateSetDictionary()
+   for random access of a compressed file.  A file containing a zlib or gzip
+   stream is provided on the command line.  The compressed stream is decoded in
+   its entirety, and an index built with access points about every SPAN bytes
+   in the uncompressed output.  The compressed file is left open, and can then
+   be read randomly, having to decompress on the average SPAN/2 uncompressed
+   bytes before getting to the desired block of data.
+
+   An access point can be created at the start of any deflate block, by saving
+   the starting file offset and bit of that block, and the 32K bytes of
+   uncompressed data that precede that block.  Also the uncompressed offset of
+   that block is saved to provide a referece for locating a desired starting
+   point in the uncompressed stream.  build_index() works by decompressing the
+   input zlib or gzip stream a block at a time, and at the end of each block
+   deciding if enough uncompressed data has gone by to justify the creation of
+   a new access point.  If so, that point is saved in a data structure that
+   grows as needed to accommodate the points.
+
+   To use the index, an offset in the uncompressed data is provided, for which
+   the latest access point at or preceding that offset is located in the index.
+   The input file is positioned to the specified location in the index, and if
+   necessary the first few bits of the compressed data is read from the file.
+   inflate is initialized with those bits and the 32K of uncompressed data, and
+   the decompression then proceeds until the desired offset in the file is
+   reached.  Then the decompression continues to read the desired uncompressed
+   data from the file.
+
+   Another approach would be to generate the index on demand.  In that case,
+   requests for random access reads from the compressed data would try to use
+   the index, but if a read far enough past the end of the index is required,
+   then further index entries would be generated and added.
+
+   There is some fair bit of overhead to starting inflation for the random
+   access, mainly copying the 32K byte dictionary.  So if small pieces of the
+   file are being accessed, it would make sense to implement a cache to hold
+   some lookahead and avoid many calls to extract() for small lengths.
+
+   Another way to build an index would be to use inflateCopy().  That would
+   not be constrained to have access points at block boundaries, but requires
+   more memory per access point, and also cannot be saved to file due to the
+   use of pointers in the state.  The approach here allows for storage of the
+   index in a file.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "zlib.h"
+
+#define local static
+
+#define SPAN 1048576L       /* desired distance between access points */
+#define WINSIZE 32768U      /* sliding window size */
+#define CHUNK 16384         /* file input buffer size */
+
+/* access point entry */
+struct point {
+    off_t out;          /* corresponding offset in uncompressed data */
+    off_t in;           /* offset in input file of first full byte */
+    int bits;           /* number of bits (1-7) from byte at in - 1, or 0 */
+    unsigned char window[WINSIZE];  /* preceding 32K of uncompressed data */
+};
+
+/* access point list */
+struct access {
+    int have;           /* number of list entries filled in */
+    int size;           /* number of list entries allocated */
+    struct point *list; /* allocated list */
+};
+
+/* Deallocate an index built by build_index() */
+local void free_index(struct access *index)
+{
+    if (index != NULL) {
+        free(index->list);
+        free(index);
+    }
+}
+
+/* Add an entry to the access point list.  If out of memory, deallocate the
+   existing list and return NULL. */
+local struct access *addpoint(struct access *index, int bits,
+    off_t in, off_t out, unsigned left, unsigned char *window)
+{
+    struct point *next;
+
+    /* if list is empty, create it (start with eight points) */
+    if (index == NULL) {
+        index = malloc(sizeof(struct access));
+        if (index == NULL) return NULL;
+        index->list = malloc(sizeof(struct point) << 3);
+        if (index->list == NULL) {
+            free(index);
+            return NULL;
+        }
+        index->size = 8;
+        index->have = 0;
+    }
+
+    /* if list is full, make it bigger */
+    else if (index->have == index->size) {
+        index->size <<= 1;
+        next = realloc(index->list, sizeof(struct point) * index->size);
+        if (next == NULL) {
+            free_index(index);
+            return NULL;
+        }
+        index->list = next;
+    }
+
+    /* fill in entry and increment how many we have */
+    next = index->list + index->have;
+    next->bits = bits;
+    next->in = in;
+    next->out = out;
+    if (left)
+        memcpy(next->window, window + WINSIZE - left, left);
+    if (left < WINSIZE)
+        memcpy(next->window + left, window, WINSIZE - left);
+    index->have++;
+
+    /* return list, possibly reallocated */
+    return index;
+}
+
+/* Make one entire pass through the compressed stream and build an index, with
+   access points about every span bytes of uncompressed output -- span is
+   chosen to balance the speed of random access against the memory requirements
+   of the list, about 32K bytes per access point.  Note that data after the end
+   of the first zlib or gzip stream in the file is ignored.  build_index()
+   returns the number of access points on success (>= 1), Z_MEM_ERROR for out
+   of memory, Z_DATA_ERROR for an error in the input file, or Z_ERRNO for a
+   file read error.  On success, *built points to the resulting index. */
+local int build_index(FILE *in, off_t span, struct access **built)
+{
+    int ret;
+    off_t totin, totout;        /* our own total counters to avoid 4GB limit */
+    off_t last;                 /* totout value of last access point */
+    struct access *index;       /* access points being generated */
+    z_stream strm;
+    unsigned char input[CHUNK];
+    unsigned char window[WINSIZE];
+
+    /* initialize inflate */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, 47);      /* automatic zlib or gzip decoding */
+    if (ret != Z_OK)
+        return ret;
+
+    /* inflate the input, maintain a sliding window, and build an index -- this
+       also validates the integrity of the compressed data using the check
+       information at the end of the gzip or zlib stream */
+    totin = totout = last = 0;
+    index = NULL;               /* will be allocated by first addpoint() */
+    strm.avail_out = 0;
+    do {
+        /* get some compressed data from input file */
+        strm.avail_in = fread(input, 1, CHUNK, in);
+        if (ferror(in)) {
+            ret = Z_ERRNO;
+            goto build_index_error;
+        }
+        if (strm.avail_in == 0) {
+            ret = Z_DATA_ERROR;
+            goto build_index_error;
+        }
+        strm.next_in = input;
+
+        /* process all of that, or until end of stream */
+        do {
+            /* reset sliding window if necessary */
+            if (strm.avail_out == 0) {
+                strm.avail_out = WINSIZE;
+                strm.next_out = window;
+            }
+
+            /* inflate until out of input, output, or at end of block --
+               update the total input and output counters */
+            totin += strm.avail_in;
+            totout += strm.avail_out;
+            ret = inflate(&strm, Z_BLOCK);      /* return at end of block */
+            totin -= strm.avail_in;
+            totout -= strm.avail_out;
+            if (ret == Z_NEED_DICT)
+                ret = Z_DATA_ERROR;
+            if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
+                goto build_index_error;
+            if (ret == Z_STREAM_END)
+                break;
+
+            /* if at end of block, consider adding an index entry (note that if
+               data_type indicates an end-of-block, then all of the
+               uncompressed data from that block has been delivered, and none
+               of the compressed data after that block has been consumed,
+               except for up to seven bits) -- the totout == 0 provides an
+               entry point after the zlib or gzip header, and assures that the
+               index always has at least one access point; we avoid creating an
+               access point after the last block by checking bit 6 of data_type
+             */
+            if ((strm.data_type & 128) && !(strm.data_type & 64) &&
+                (totout == 0 || totout - last > span)) {
+                index = addpoint(index, strm.data_type & 7, totin,
+                                 totout, strm.avail_out, window);
+                if (index == NULL) {
+                    ret = Z_MEM_ERROR;
+                    goto build_index_error;
+                }
+                last = totout;
+            }
+        } while (strm.avail_in != 0);
+    } while (ret != Z_STREAM_END);
+
+    /* clean up and return index (release unused entries in list) */
+    (void)inflateEnd(&strm);
+    index->list = realloc(index->list, sizeof(struct point) * index->have);
+    index->size = index->have;
+    *built = index;
+    return index->size;
+
+    /* return error */
+  build_index_error:
+    (void)inflateEnd(&strm);
+    if (index != NULL)
+        free_index(index);
+    return ret;
+}
+
+/* Use the index to read len bytes from offset into buf, return bytes read or
+   negative for error (Z_DATA_ERROR or Z_MEM_ERROR).  If data is requested past
+   the end of the uncompressed data, then extract() will return a value less
+   than len, indicating how much as actually read into buf.  This function
+   should not return a data error unless the file was modified since the index
+   was generated.  extract() may also return Z_ERRNO if there is an error on
+   reading or seeking the input file. */
+local int extract(FILE *in, struct access *index, off_t offset,
+                  unsigned char *buf, int len)
+{
+    int ret, skip;
+    z_stream strm;
+    struct point *here;
+    unsigned char input[CHUNK];
+    unsigned char discard[WINSIZE];
+
+    /* proceed only if something reasonable to do */
+    if (len < 0)
+        return 0;
+
+    /* find where in stream to start */
+    here = index->list;
+    ret = index->have;
+    while (--ret && here[1].out <= offset)
+        here++;
+
+    /* initialize file and inflate state to start there */
+    strm.zalloc = Z_NULL;
+    strm.zfree = Z_NULL;
+    strm.opaque = Z_NULL;
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, -15);         /* raw inflate */
+    if (ret != Z_OK)
+        return ret;
+    ret = fseeko(in, here->in - (here->bits ? 1 : 0), SEEK_SET);
+    if (ret == -1)
+        goto extract_ret;
+    if (here->bits) {
+        ret = getc(in);
+        if (ret == -1) {
+            ret = ferror(in) ? Z_ERRNO : Z_DATA_ERROR;
+            goto extract_ret;
+        }
+        (void)inflatePrime(&strm, here->bits, ret >> (8 - here->bits));
+    }
+    (void)inflateSetDictionary(&strm, here->window, WINSIZE);
+
+    /* skip uncompressed bytes until offset reached, then satisfy request */
+    offset -= here->out;
+    strm.avail_in = 0;
+    skip = 1;                               /* while skipping to offset */
+    do {
+        /* define where to put uncompressed data, and how much */
+        if (offset == 0 && skip) {          /* at offset now */
+            strm.avail_out = len;
+            strm.next_out = buf;
+            skip = 0;                       /* only do this once */
+        }
+        if (offset > WINSIZE) {             /* skip WINSIZE bytes */
+            strm.avail_out = WINSIZE;
+            strm.next_out = discard;
+            offset -= WINSIZE;
+        }
+        else if (offset != 0) {             /* last skip */
+            strm.avail_out = (unsigned)offset;
+            strm.next_out = discard;
+            offset = 0;
+        }
+
+        /* uncompress until avail_out filled, or end of stream */
+        do {
+            if (strm.avail_in == 0) {
+                strm.avail_in = fread(input, 1, CHUNK, in);
+                if (ferror(in)) {
+                    ret = Z_ERRNO;
+                    goto extract_ret;
+                }
+                if (strm.avail_in == 0) {
+                    ret = Z_DATA_ERROR;
+                    goto extract_ret;
+                }
+                strm.next_in = input;
+            }
+            ret = inflate(&strm, Z_NO_FLUSH);       /* normal inflate */
+            if (ret == Z_NEED_DICT)
+                ret = Z_DATA_ERROR;
+            if (ret == Z_MEM_ERROR || ret == Z_DATA_ERROR)
+                goto extract_ret;
+            if (ret == Z_STREAM_END)
+                break;
+        } while (strm.avail_out != 0);
+
+        /* if reach end of stream, then don't keep trying to get more */
+        if (ret == Z_STREAM_END)
+            break;
+
+        /* do until offset reached and requested data read, or stream ends */
+    } while (skip);
+
+    /* compute number of uncompressed bytes read after offset */
+    ret = skip ? 0 : len - strm.avail_out;
+
+    /* clean up and return bytes read or error */
+  extract_ret:
+    (void)inflateEnd(&strm);
+    return ret;
+}
+
+/* Demonstrate the use of build_index() and extract() by processing the file
+   provided on the command line, and the extracting 16K from about 2/3rds of
+   the way through the uncompressed output, and writing that to stdout. */
+int main(int argc, char **argv)
+{
+    int len;
+    off_t offset;
+    FILE *in;
+    struct access *index = NULL;
+    unsigned char buf[CHUNK];
+
+    /* open input file */
+    if (argc != 2) {
+        fprintf(stderr, "usage: zran file.gz\n");
+        return 1;
+    }
+    in = fopen(argv[1], "rb");
+    if (in == NULL) {
+        fprintf(stderr, "zran: could not open %s for reading\n", argv[1]);
+        return 1;
+    }
+
+    /* build index */
+    len = build_index(in, SPAN, &index);
+    if (len < 0) {
+        fclose(in);
+        switch (len) {
+        case Z_MEM_ERROR:
+            fprintf(stderr, "zran: out of memory\n");
+            break;
+        case Z_DATA_ERROR:
+            fprintf(stderr, "zran: compressed data error in %s\n", argv[1]);
+            break;
+        case Z_ERRNO:
+            fprintf(stderr, "zran: read error on %s\n", argv[1]);
+            break;
+        default:
+            fprintf(stderr, "zran: error %d while building index\n", len);
+        }
+        return 1;
+    }
+    fprintf(stderr, "zran: built index with %d access points\n", len);
+
+    /* use index by reading some bytes from an arbitrary offset */
+    offset = (index->list[index->have - 1].out << 1) / 3;
+    len = extract(in, index, offset, buf, CHUNK);
+    if (len < 0)
+        fprintf(stderr, "zran: extraction failed: %s error\n",
+                len == Z_MEM_ERROR ? "out of memory" : "input corrupted");
+    else {
+        fwrite(buf, 1, len, stdout);
+        fprintf(stderr, "zran: extracted %d bytes at %llu\n", len, offset);
+    }
+
+    /* clean up and exit */
+    free_index(index);
+    fclose(in);
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/gzclose.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzclose.c
new file mode 100644
index 000000000..caeb99a31
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzclose.c
@@ -0,0 +1,25 @@
+/* gzclose.c -- zlib gzclose() function
+ * Copyright (C) 2004, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* gzclose() is in a separate file so that it is linked in only if it is used.
+   That way the other gzclose functions can be used instead to avoid linking in
+   unneeded compression or decompression routines. */
+int ZEXPORT gzclose(file)
+    gzFile file;
+{
+#ifndef NO_GZCOMPRESS
+    gz_statep state;
+
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    return state->mode == GZ_READ ? gzclose_r(file) : gzclose_w(file);
+#else
+    return gzclose_r(file);
+#endif
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/gzguts.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzguts.h
new file mode 100644
index 000000000..990a4d251
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzguts.h
@@ -0,0 +1,218 @@
+/* gzguts.h -- zlib internal header definitions for gz* operations
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#ifdef _LARGEFILE64_SOURCE
+#  ifndef _LARGEFILE_SOURCE
+#    define _LARGEFILE_SOURCE 1
+#  endif
+#  ifdef _FILE_OFFSET_BITS
+#    undef _FILE_OFFSET_BITS
+#  endif
+#endif
+
+#ifdef HAVE_HIDDEN
+#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+#  define ZLIB_INTERNAL
+#endif
+
+#include <stdio.h>
+#include "zlib.h"
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#  include <limits.h>
+#endif
+
+#ifndef _POSIX_SOURCE
+#  define _POSIX_SOURCE
+#endif
+#include <fcntl.h>
+
+#ifdef _WIN32
+#  include <stddef.h>
+#endif
+
+#if defined(__TURBOC__) || defined(_MSC_VER) || defined(_WIN32)
+#  include <io.h>
+#endif
+
+#if defined(_WIN32) || defined(__CYGWIN__)
+#  define WIDECHAR
+#endif
+
+#ifdef WINAPI_FAMILY
+#  define open _open
+#  define read _read
+#  define write _write
+#  define close _close
+#endif
+
+#ifdef NO_DEFLATE       /* for compatibility with old definition */
+#  define NO_GZCOMPRESS
+#endif
+
+#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
+#  ifndef HAVE_VSNPRINTF
+#    define HAVE_VSNPRINTF
+#  endif
+#endif
+
+#if defined(__CYGWIN__)
+#  ifndef HAVE_VSNPRINTF
+#    define HAVE_VSNPRINTF
+#  endif
+#endif
+
+#if defined(MSDOS) && defined(__BORLANDC__) && (BORLANDC > 0x410)
+#  ifndef HAVE_VSNPRINTF
+#    define HAVE_VSNPRINTF
+#  endif
+#endif
+
+#ifndef HAVE_VSNPRINTF
+#  ifdef MSDOS
+/* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
+   but for now we just assume it doesn't. */
+#    define NO_vsnprintf
+#  endif
+#  ifdef __TURBOC__
+#    define NO_vsnprintf
+#  endif
+#  ifdef WIN32
+/* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
+#    if !defined(vsnprintf) && !defined(NO_vsnprintf)
+#      if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
+#         define vsnprintf _vsnprintf
+#      endif
+#    endif
+#  endif
+#  ifdef __SASC
+#    define NO_vsnprintf
+#  endif
+#  ifdef VMS
+#    define NO_vsnprintf
+#  endif
+#  ifdef __OS400__
+#    define NO_vsnprintf
+#  endif
+#  ifdef __MVS__
+#    define NO_vsnprintf
+#  endif
+#endif
+
+/* unlike snprintf (which is required in C99), _snprintf does not guarantee
+   null termination of the result -- however this is only used in gzlib.c where
+   the result is assured to fit in the space provided */
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#  define snprintf _snprintf
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* since "static" is used to mean two completely different things in C, we
+   define "local" for the non-static meaning of "static", for readability
+   (compile with -Dlocal if your debugger can't find static symbols) */
+
+/* gz* functions always use library allocation functions */
+#ifndef STDC
+  extern voidp  malloc OF((uInt size));
+  extern void   free   OF((voidpf ptr));
+#endif
+
+/* get errno and strerror definition */
+#if defined UNDER_CE
+#  include <windows.h>
+#  define zstrerror() gz_strwinerror((DWORD)GetLastError())
+#else
+#  ifndef NO_STRERROR
+#    include <errno.h>
+#    define zstrerror() strerror(errno)
+#  else
+#    define zstrerror() "stdio error (consult errno)"
+#  endif
+#endif
+
+/* provide prototypes for these when building zlib without LFS */
+#if !defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0
+    ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
+    ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
+    ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
+    ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
+#endif
+
+/* default memLevel */
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+
+/* default i/o buffer size -- double this for output when reading (this and
+   twice this must be able to fit in an unsigned type) */
+#define GZBUFSIZE 8192
+
+/* gzip modes, also provide a little integrity check on the passed structure */
+#define GZ_NONE 0
+#define GZ_READ 7247
+#define GZ_WRITE 31153
+#define GZ_APPEND 1     /* mode set to GZ_WRITE after the file is opened */
+
+/* values for gz_state how */
+#define LOOK 0      /* look for a gzip header */
+#define COPY 1      /* copy input directly */
+#define GZIP 2      /* decompress a gzip stream */
+
+/* internal gzip file state data structure */
+typedef struct {
+        /* exposed contents for gzgetc() macro */
+    struct gzFile_s x;      /* "x" for exposed */
+                            /* x.have: number of bytes available at x.next */
+                            /* x.next: next output data to deliver or write */
+                            /* x.pos: current position in uncompressed data */
+        /* used for both reading and writing */
+    int mode;               /* see gzip modes above */
+    int fd;                 /* file descriptor */
+    char *path;             /* path or fd for error messages */
+    unsigned size;          /* buffer size, zero if not allocated yet */
+    unsigned want;          /* requested buffer size, default is GZBUFSIZE */
+    unsigned char *in;      /* input buffer (double-sized when writing) */
+    unsigned char *out;     /* output buffer (double-sized when reading) */
+    int direct;             /* 0 if processing gzip, 1 if transparent */
+        /* just for reading */
+    int how;                /* 0: get header, 1: copy, 2: decompress */
+    z_off64_t start;        /* where the gzip data started, for rewinding */
+    int eof;                /* true if end of input file reached */
+    int past;               /* true if read requested past end */
+        /* just for writing */
+    int level;              /* compression level */
+    int strategy;           /* compression strategy */
+        /* seek request */
+    z_off64_t skip;         /* amount to skip (already rewound if backwards) */
+    int seek;               /* true if seek request pending */
+        /* error information */
+    int err;                /* error code */
+    char *msg;              /* error message */
+        /* zlib inflate or deflate stream */
+    z_stream strm;          /* stream structure in-place (not a pointer) */
+} gz_state;
+typedef gz_state FAR *gz_statep;
+
+/* shared functions */
+void ZLIB_INTERNAL gz_error OF((gz_statep, int, const char *));
+#if defined UNDER_CE
+char ZLIB_INTERNAL *gz_strwinerror OF((DWORD error));
+#endif
+
+/* GT_OFF(x), where x is an unsigned value, is true if x > maximum z_off64_t
+   value -- needed when comparing unsigned to z_off64_t, which is signed
+   (possible z_off64_t types off_t, off64_t, and long are all signed) */
+#ifdef INT_MAX
+#  define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > INT_MAX)
+#else
+unsigned ZLIB_INTERNAL gz_intmax OF((void));
+#  define GT_OFF(x) (sizeof(int) == sizeof(z_off64_t) && (x) > gz_intmax())
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/gzlib.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzlib.c
new file mode 100644
index 000000000..4105e6aff
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzlib.c
@@ -0,0 +1,637 @@
+/* gzlib.c -- zlib functions common to reading and writing gzip files
+ * Copyright (C) 2004-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+#if defined(_WIN32) && !defined(__BORLANDC__) && !defined(__MINGW32__)
+#  define LSEEK _lseeki64
+#else
+#if defined(_LARGEFILE64_SOURCE) && _LFS64_LARGEFILE-0
+#  define LSEEK lseek64
+#else
+#  define LSEEK lseek
+#endif
+#endif
+
+/* Local functions */
+local void gz_reset OF((gz_statep));
+local gzFile gz_open OF((const void *, int, const char *));
+
+#if defined UNDER_CE
+
+/* Map the Windows error number in ERROR to a locale-dependent error message
+   string and return a pointer to it.  Typically, the values for ERROR come
+   from GetLastError.
+
+   The string pointed to shall not be modified by the application, but may be
+   overwritten by a subsequent call to gz_strwinerror
+
+   The gz_strwinerror function does not change the current setting of
+   GetLastError. */
+char ZLIB_INTERNAL *gz_strwinerror (error)
+     DWORD error;
+{
+    static char buf[1024];
+
+    wchar_t *msgbuf;
+    DWORD lasterr = GetLastError();
+    DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
+        | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+        NULL,
+        error,
+        0, /* Default language */
+        (LPVOID)&msgbuf,
+        0,
+        NULL);
+    if (chars != 0) {
+        /* If there is an \r\n appended, zap it.  */
+        if (chars >= 2
+            && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
+            chars -= 2;
+            msgbuf[chars] = 0;
+        }
+
+        if (chars > sizeof (buf) - 1) {
+            chars = sizeof (buf) - 1;
+            msgbuf[chars] = 0;
+        }
+
+        wcstombs(buf, msgbuf, chars + 1);
+        LocalFree(msgbuf);
+    }
+    else {
+        sprintf(buf, "unknown win32 error (%ld)", error);
+    }
+
+    SetLastError(lasterr);
+    return buf;
+}
+
+#endif /* UNDER_CE */
+
+/* Reset gzip file state */
+local void gz_reset(state)
+    gz_statep state;
+{
+    state->x.have = 0;              /* no output data available */
+    if (state->mode == GZ_READ) {   /* for reading ... */
+        state->eof = 0;             /* not at end of file */
+        state->past = 0;            /* have not read past end yet */
+        state->how = LOOK;          /* look for gzip header */
+    }
+    state->seek = 0;                /* no seek request pending */
+    gz_error(state, Z_OK, NULL);    /* clear error */
+    state->x.pos = 0;               /* no uncompressed data yet */
+    state->strm.avail_in = 0;       /* no input data yet */
+}
+
+/* Open a gzip file either by name or file descriptor. */
+local gzFile gz_open(path, fd, mode)
+    const void *path;
+    int fd;
+    const char *mode;
+{
+    gz_statep state;
+    z_size_t len;
+    int oflag;
+#ifdef O_CLOEXEC
+    int cloexec = 0;
+#endif
+#ifdef O_EXCL
+    int exclusive = 0;
+#endif
+
+    /* check input */
+    if (path == NULL)
+        return NULL;
+
+    /* allocate gzFile structure to return */
+    state = (gz_statep)malloc(sizeof(gz_state));
+    if (state == NULL)
+        return NULL;
+    state->size = 0;            /* no buffers allocated yet */
+    state->want = GZBUFSIZE;    /* requested buffer size */
+    state->msg = NULL;          /* no error message yet */
+
+    /* interpret mode */
+    state->mode = GZ_NONE;
+    state->level = Z_DEFAULT_COMPRESSION;
+    state->strategy = Z_DEFAULT_STRATEGY;
+    state->direct = 0;
+    while (*mode) {
+        if (*mode >= '0' && *mode <= '9')
+            state->level = *mode - '0';
+        else
+            switch (*mode) {
+            case 'r':
+                state->mode = GZ_READ;
+                break;
+#ifndef NO_GZCOMPRESS
+            case 'w':
+                state->mode = GZ_WRITE;
+                break;
+            case 'a':
+                state->mode = GZ_APPEND;
+                break;
+#endif
+            case '+':       /* can't read and write at the same time */
+                free(state);
+                return NULL;
+            case 'b':       /* ignore -- will request binary anyway */
+                break;
+#ifdef O_CLOEXEC
+            case 'e':
+                cloexec = 1;
+                break;
+#endif
+#ifdef O_EXCL
+            case 'x':
+                exclusive = 1;
+                break;
+#endif
+            case 'f':
+                state->strategy = Z_FILTERED;
+                break;
+            case 'h':
+                state->strategy = Z_HUFFMAN_ONLY;
+                break;
+            case 'R':
+                state->strategy = Z_RLE;
+                break;
+            case 'F':
+                state->strategy = Z_FIXED;
+                break;
+            case 'T':
+                state->direct = 1;
+                break;
+            default:        /* could consider as an error, but just ignore */
+                ;
+            }
+        mode++;
+    }
+
+    /* must provide an "r", "w", or "a" */
+    if (state->mode == GZ_NONE) {
+        free(state);
+        return NULL;
+    }
+
+    /* can't force transparent read */
+    if (state->mode == GZ_READ) {
+        if (state->direct) {
+            free(state);
+            return NULL;
+        }
+        state->direct = 1;      /* for empty file */
+    }
+
+    /* save the path name for error messages */
+#ifdef WIDECHAR
+    if (fd == -2) {
+        len = wcstombs(NULL, path, 0);
+        if (len == (z_size_t)-1)
+            len = 0;
+    }
+    else
+#endif
+        len = strlen((const char *)path);
+    state->path = (char *)malloc(len + 1);
+    if (state->path == NULL) {
+        free(state);
+        return NULL;
+    }
+#ifdef WIDECHAR
+    if (fd == -2)
+        if (len)
+            wcstombs(state->path, path, len + 1);
+        else
+            *(state->path) = 0;
+    else
+#endif
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+        (void)snprintf(state->path, len + 1, "%s", (const char *)path);
+#else
+        strcpy(state->path, path);
+#endif
+
+    /* compute the flags for open() */
+    oflag =
+#ifdef O_LARGEFILE
+        O_LARGEFILE |
+#endif
+#ifdef O_BINARY
+        O_BINARY |
+#endif
+#ifdef O_CLOEXEC
+        (cloexec ? O_CLOEXEC : 0) |
+#endif
+        (state->mode == GZ_READ ?
+         O_RDONLY :
+         (O_WRONLY | O_CREAT |
+#ifdef O_EXCL
+          (exclusive ? O_EXCL : 0) |
+#endif
+          (state->mode == GZ_WRITE ?
+           O_TRUNC :
+           O_APPEND)));
+
+    /* open the file with the appropriate flags (or just use fd) */
+    state->fd = fd > -1 ? fd : (
+#ifdef WIDECHAR
+        fd == -2 ? _wopen(path, oflag, 0666) :
+#endif
+        open((const char *)path, oflag, 0666));
+    if (state->fd == -1) {
+        free(state->path);
+        free(state);
+        return NULL;
+    }
+    if (state->mode == GZ_APPEND) {
+        LSEEK(state->fd, 0, SEEK_END);  /* so gzoffset() is correct */
+        state->mode = GZ_WRITE;         /* simplify later checks */
+    }
+
+    /* save the current position for rewinding (only if reading) */
+    if (state->mode == GZ_READ) {
+        state->start = LSEEK(state->fd, 0, SEEK_CUR);
+        if (state->start == -1) state->start = 0;
+    }
+
+    /* initialize stream */
+    gz_reset(state);
+
+    /* return stream */
+    return (gzFile)state;
+}
+
+/* -- see zlib.h -- */
+gzFile ZEXPORT gzopen(path, mode)
+    const char *path;
+    const char *mode;
+{
+    return gz_open(path, -1, mode);
+}
+
+/* -- see zlib.h -- */
+gzFile ZEXPORT gzopen64(path, mode)
+    const char *path;
+    const char *mode;
+{
+    return gz_open(path, -1, mode);
+}
+
+/* -- see zlib.h -- */
+gzFile ZEXPORT gzdopen(fd, mode)
+    int fd;
+    const char *mode;
+{
+    char *path;         /* identifier for error messages */
+    gzFile gz;
+
+    if (fd == -1 || (path = (char *)malloc(7 + 3 * sizeof(int))) == NULL)
+        return NULL;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    (void)snprintf(path, 7 + 3 * sizeof(int), "<fd:%d>", fd);
+#else
+    sprintf(path, "<fd:%d>", fd);   /* for debugging */
+#endif
+    gz = gz_open(path, fd, mode);
+    free(path);
+    return gz;
+}
+
+/* -- see zlib.h -- */
+#ifdef WIDECHAR
+gzFile ZEXPORT gzopen_w(path, mode)
+    const wchar_t *path;
+    const char *mode;
+{
+    return gz_open(path, -2, mode);
+}
+#endif
+
+/* -- see zlib.h -- */
+int ZEXPORT gzbuffer(file, size)
+    gzFile file;
+    unsigned size;
+{
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* make sure we haven't already allocated memory */
+    if (state->size != 0)
+        return -1;
+
+    /* check and set requested size */
+    if ((size << 1) < size)
+        return -1;              /* need to be able to double it */
+    if (size < 2)
+        size = 2;               /* need two bytes to check magic header */
+    state->want = size;
+    return 0;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzrewind(file)
+    gzFile file;
+{
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no error */
+    if (state->mode != GZ_READ ||
+            (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* back up and start over */
+    if (LSEEK(state->fd, state->start, SEEK_SET) == -1)
+        return -1;
+    gz_reset(state);
+    return 0;
+}
+
+/* -- see zlib.h -- */
+z_off64_t ZEXPORT gzseek64(file, offset, whence)
+    gzFile file;
+    z_off64_t offset;
+    int whence;
+{
+    unsigned n;
+    z_off64_t ret;
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* check that there's no error */
+    if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+        return -1;
+
+    /* can only seek from start or relative to current position */
+    if (whence != SEEK_SET && whence != SEEK_CUR)
+        return -1;
+
+    /* normalize offset to a SEEK_CUR specification */
+    if (whence == SEEK_SET)
+        offset -= state->x.pos;
+    else if (state->seek)
+        offset += state->skip;
+    state->seek = 0;
+
+    /* if within raw area while reading, just go there */
+    if (state->mode == GZ_READ && state->how == COPY &&
+            state->x.pos + offset >= 0) {
+        ret = LSEEK(state->fd, offset - state->x.have, SEEK_CUR);
+        if (ret == -1)
+            return -1;
+        state->x.have = 0;
+        state->eof = 0;
+        state->past = 0;
+        state->seek = 0;
+        gz_error(state, Z_OK, NULL);
+        state->strm.avail_in = 0;
+        state->x.pos += offset;
+        return state->x.pos;
+    }
+
+    /* calculate skip amount, rewinding if needed for back seek when reading */
+    if (offset < 0) {
+        if (state->mode != GZ_READ)         /* writing -- can't go backwards */
+            return -1;
+        offset += state->x.pos;
+        if (offset < 0)                     /* before start of file! */
+            return -1;
+        if (gzrewind(file) == -1)           /* rewind, then skip to offset */
+            return -1;
+    }
+
+    /* if reading, skip what's in output buffer (one less gzgetc() check) */
+    if (state->mode == GZ_READ) {
+        n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > offset ?
+            (unsigned)offset : state->x.have;
+        state->x.have -= n;
+        state->x.next += n;
+        state->x.pos += n;
+        offset -= n;
+    }
+
+    /* request skip (if not zero) */
+    if (offset) {
+        state->seek = 1;
+        state->skip = offset;
+    }
+    return state->x.pos + offset;
+}
+
+/* -- see zlib.h -- */
+z_off_t ZEXPORT gzseek(file, offset, whence)
+    gzFile file;
+    z_off_t offset;
+    int whence;
+{
+    z_off64_t ret;
+
+    ret = gzseek64(file, (z_off64_t)offset, whence);
+    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+}
+
+/* -- see zlib.h -- */
+z_off64_t ZEXPORT gztell64(file)
+    gzFile file;
+{
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* return position */
+    return state->x.pos + (state->seek ? state->skip : 0);
+}
+
+/* -- see zlib.h -- */
+z_off_t ZEXPORT gztell(file)
+    gzFile file;
+{
+    z_off64_t ret;
+
+    ret = gztell64(file);
+    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+}
+
+/* -- see zlib.h -- */
+z_off64_t ZEXPORT gzoffset64(file)
+    gzFile file;
+{
+    z_off64_t offset;
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return -1;
+
+    /* compute and return effective offset in file */
+    offset = LSEEK(state->fd, 0, SEEK_CUR);
+    if (offset == -1)
+        return -1;
+    if (state->mode == GZ_READ)             /* reading */
+        offset -= state->strm.avail_in;     /* don't count buffered input */
+    return offset;
+}
+
+/* -- see zlib.h -- */
+z_off_t ZEXPORT gzoffset(file)
+    gzFile file;
+{
+    z_off64_t ret;
+
+    ret = gzoffset64(file);
+    return ret == (z_off_t)ret ? (z_off_t)ret : -1;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzeof(file)
+    gzFile file;
+{
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return 0;
+
+    /* return end-of-file state */
+    return state->mode == GZ_READ ? state->past : 0;
+}
+
+/* -- see zlib.h -- */
+const char * ZEXPORT gzerror(file, errnum)
+    gzFile file;
+    int *errnum;
+{
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return NULL;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return NULL;
+
+    /* return error information */
+    if (errnum != NULL)
+        *errnum = state->err;
+    return state->err == Z_MEM_ERROR ? "out of memory" :
+                                       (state->msg == NULL ? "" : state->msg);
+}
+
+/* -- see zlib.h -- */
+void ZEXPORT gzclearerr(file)
+    gzFile file;
+{
+    gz_statep state;
+
+    /* get internal structure and check integrity */
+    if (file == NULL)
+        return;
+    state = (gz_statep)file;
+    if (state->mode != GZ_READ && state->mode != GZ_WRITE)
+        return;
+
+    /* clear error and end-of-file */
+    if (state->mode == GZ_READ) {
+        state->eof = 0;
+        state->past = 0;
+    }
+    gz_error(state, Z_OK, NULL);
+}
+
+/* Create an error message in allocated memory and set state->err and
+   state->msg accordingly.  Free any previous error message already there.  Do
+   not try to free or allocate space if the error is Z_MEM_ERROR (out of
+   memory).  Simply save the error message as a static string.  If there is an
+   allocation failure constructing the error message, then convert the error to
+   out of memory. */
+void ZLIB_INTERNAL gz_error(state, err, msg)
+    gz_statep state;
+    int err;
+    const char *msg;
+{
+    /* free previously allocated message and clear */
+    if (state->msg != NULL) {
+        if (state->err != Z_MEM_ERROR)
+            free(state->msg);
+        state->msg = NULL;
+    }
+
+    /* if fatal, set state->x.have to 0 so that the gzgetc() macro fails */
+    if (err != Z_OK && err != Z_BUF_ERROR)
+        state->x.have = 0;
+
+    /* set error code, and if no message, then done */
+    state->err = err;
+    if (msg == NULL)
+        return;
+
+    /* for an out of memory error, return literal string when requested */
+    if (err == Z_MEM_ERROR)
+        return;
+
+    /* construct error message with path */
+    if ((state->msg = (char *)malloc(strlen(state->path) + strlen(msg) + 3)) ==
+            NULL) {
+        state->err = Z_MEM_ERROR;
+        return;
+    }
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    (void)snprintf(state->msg, strlen(state->path) + strlen(msg) + 3,
+                   "%s%s%s", state->path, ": ", msg);
+#else
+    strcpy(state->msg, state->path);
+    strcat(state->msg, ": ");
+    strcat(state->msg, msg);
+#endif
+}
+
+#ifndef INT_MAX
+/* portably return maximum value for an int (when limits.h presumed not
+   available) -- we need to do this to cover cases where 2's complement not
+   used, since C standard permits 1's complement and sign-bit representations,
+   otherwise we could just use ((unsigned)-1) >> 1 */
+unsigned ZLIB_INTERNAL gz_intmax()
+{
+    unsigned p, q;
+
+    p = 1;
+    do {
+        q = p;
+        p <<= 1;
+        p++;
+    } while (p > q);
+    return q >> 1;
+}
+#endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/gzread.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzread.c
new file mode 100644
index 000000000..956b91ea7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzread.c
@@ -0,0 +1,654 @@
+/* gzread.c -- zlib functions for reading gzip files
+ * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* Local functions */
+local int gz_load OF((gz_statep, unsigned char *, unsigned, unsigned *));
+local int gz_avail OF((gz_statep));
+local int gz_look OF((gz_statep));
+local int gz_decomp OF((gz_statep));
+local int gz_fetch OF((gz_statep));
+local int gz_skip OF((gz_statep, z_off64_t));
+local z_size_t gz_read OF((gz_statep, voidp, z_size_t));
+
+/* Use read() to load a buffer -- return -1 on error, otherwise 0.  Read from
+   state->fd, and update state->eof, state->err, and state->msg as appropriate.
+   This function needs to loop on read(), since read() is not guaranteed to
+   read the number of bytes requested, depending on the type of descriptor. */
+local int gz_load(state, buf, len, have)
+    gz_statep state;
+    unsigned char *buf;
+    unsigned len;
+    unsigned *have;
+{
+    int ret;
+    unsigned get, max = ((unsigned)-1 >> 2) + 1;
+
+    *have = 0;
+    do {
+        get = len - *have;
+        if (get > max)
+            get = max;
+        ret = read(state->fd, buf + *have, get);
+        if (ret <= 0)
+            break;
+        *have += (unsigned)ret;
+    } while (*have < len);
+    if (ret < 0) {
+        gz_error(state, Z_ERRNO, zstrerror());
+        return -1;
+    }
+    if (ret == 0)
+        state->eof = 1;
+    return 0;
+}
+
+/* Load up input buffer and set eof flag if last data loaded -- return -1 on
+   error, 0 otherwise.  Note that the eof flag is set when the end of the input
+   file is reached, even though there may be unused data in the buffer.  Once
+   that data has been used, no more attempts will be made to read the file.
+   If strm->avail_in != 0, then the current data is moved to the beginning of
+   the input buffer, and then the remainder of the buffer is loaded with the
+   available data from the input file. */
+local int gz_avail(state)
+    gz_statep state;
+{
+    unsigned got;
+    z_streamp strm = &(state->strm);
+
+    if (state->err != Z_OK && state->err != Z_BUF_ERROR)
+        return -1;
+    if (state->eof == 0) {
+        if (strm->avail_in) {       /* copy what's there to the start */
+            unsigned char *p = state->in;
+            unsigned const char *q = strm->next_in;
+            unsigned n = strm->avail_in;
+            do {
+                *p++ = *q++;
+            } while (--n);
+        }
+        if (gz_load(state, state->in + strm->avail_in,
+                    state->size - strm->avail_in, &got) == -1)
+            return -1;
+        strm->avail_in += got;
+        strm->next_in = state->in;
+    }
+    return 0;
+}
+
+/* Look for gzip header, set up for inflate or copy.  state->x.have must be 0.
+   If this is the first time in, allocate required memory.  state->how will be
+   left unchanged if there is no more input data available, will be set to COPY
+   if there is no gzip header and direct copying will be performed, or it will
+   be set to GZIP for decompression.  If direct copying, then leftover input
+   data from the input buffer will be copied to the output buffer.  In that
+   case, all further file reads will be directly to either the output buffer or
+   a user buffer.  If decompressing, the inflate state will be initialized.
+   gz_look() will return 0 on success or -1 on failure. */
+local int gz_look(state)
+    gz_statep state;
+{
+    z_streamp strm = &(state->strm);
+
+    /* allocate read buffers and inflate memory */
+    if (state->size == 0) {
+        /* allocate buffers */
+        state->in = (unsigned char *)malloc(state->want);
+        state->out = (unsigned char *)malloc(state->want << 1);
+        if (state->in == NULL || state->out == NULL) {
+            free(state->out);
+            free(state->in);
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+        state->size = state->want;
+
+        /* allocate inflate memory */
+        state->strm.zalloc = Z_NULL;
+        state->strm.zfree = Z_NULL;
+        state->strm.opaque = Z_NULL;
+        state->strm.avail_in = 0;
+        state->strm.next_in = Z_NULL;
+        if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) {    /* gunzip */
+            free(state->out);
+            free(state->in);
+            state->size = 0;
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+    }
+
+    /* get at least the magic bytes in the input buffer */
+    if (strm->avail_in < 2) {
+        if (gz_avail(state) == -1)
+            return -1;
+        if (strm->avail_in == 0)
+            return 0;
+    }
+
+    /* look for gzip magic bytes -- if there, do gzip decoding (note: there is
+       a logical dilemma here when considering the case of a partially written
+       gzip file, to wit, if a single 31 byte is written, then we cannot tell
+       whether this is a single-byte file, or just a partially written gzip
+       file -- for here we assume that if a gzip file is being written, then
+       the header will be written in a single operation, so that reading a
+       single byte is sufficient indication that it is not a gzip file) */
+    if (strm->avail_in > 1 &&
+            strm->next_in[0] == 31 && strm->next_in[1] == 139) {
+        inflateReset(strm);
+        state->how = GZIP;
+        state->direct = 0;
+        return 0;
+    }
+
+    /* no gzip header -- if we were decoding gzip before, then this is trailing
+       garbage.  Ignore the trailing garbage and finish. */
+    if (state->direct == 0) {
+        strm->avail_in = 0;
+        state->eof = 1;
+        state->x.have = 0;
+        return 0;
+    }
+
+    /* doing raw i/o, copy any leftover input to output -- this assumes that
+       the output buffer is larger than the input buffer, which also assures
+       space for gzungetc() */
+    state->x.next = state->out;
+    if (strm->avail_in) {
+        memcpy(state->x.next, strm->next_in, strm->avail_in);
+        state->x.have = strm->avail_in;
+        strm->avail_in = 0;
+    }
+    state->how = COPY;
+    state->direct = 1;
+    return 0;
+}
+
+/* Decompress from input to the provided next_out and avail_out in the state.
+   On return, state->x.have and state->x.next point to the just decompressed
+   data.  If the gzip stream completes, state->how is reset to LOOK to look for
+   the next gzip stream or raw data, once state->x.have is depleted.  Returns 0
+   on success, -1 on failure. */
+local int gz_decomp(state)
+    gz_statep state;
+{
+    int ret = Z_OK;
+    unsigned had;
+    z_streamp strm = &(state->strm);
+
+    /* fill output buffer up to end of deflate stream */
+    had = strm->avail_out;
+    do {
+        /* get more input for inflate() */
+        if (strm->avail_in == 0 && gz_avail(state) == -1)
+            return -1;
+        if (strm->avail_in == 0) {
+            gz_error(state, Z_BUF_ERROR, "unexpected end of file");
+            break;
+        }
+
+        /* decompress and handle errors */
+        ret = inflate(strm, Z_NO_FLUSH);
+        if (ret == Z_STREAM_ERROR || ret == Z_NEED_DICT) {
+            gz_error(state, Z_STREAM_ERROR,
+                     "internal error: inflate stream corrupt");
+            return -1;
+        }
+        if (ret == Z_MEM_ERROR) {
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+        if (ret == Z_DATA_ERROR) {              /* deflate stream invalid */
+            gz_error(state, Z_DATA_ERROR,
+                     strm->msg == NULL ? "compressed data error" : strm->msg);
+            return -1;
+        }
+    } while (strm->avail_out && ret != Z_STREAM_END);
+
+    /* update available output */
+    state->x.have = had - strm->avail_out;
+    state->x.next = strm->next_out - state->x.have;
+
+    /* if the gzip stream completed successfully, look for another */
+    if (ret == Z_STREAM_END)
+        state->how = LOOK;
+
+    /* good decompression */
+    return 0;
+}
+
+/* Fetch data and put it in the output buffer.  Assumes state->x.have is 0.
+   Data is either copied from the input file or decompressed from the input
+   file depending on state->how.  If state->how is LOOK, then a gzip header is
+   looked for to determine whether to copy or decompress.  Returns -1 on error,
+   otherwise 0.  gz_fetch() will leave state->how as COPY or GZIP unless the
+   end of the input file has been reached and all data has been processed.  */
+local int gz_fetch(state)
+    gz_statep state;
+{
+    z_streamp strm = &(state->strm);
+
+    do {
+        switch(state->how) {
+        case LOOK:      /* -> LOOK, COPY (only if never GZIP), or GZIP */
+            if (gz_look(state) == -1)
+                return -1;
+            if (state->how == LOOK)
+                return 0;
+            break;
+        case COPY:      /* -> COPY */
+            if (gz_load(state, state->out, state->size << 1, &(state->x.have))
+                    == -1)
+                return -1;
+            state->x.next = state->out;
+            return 0;
+        case GZIP:      /* -> GZIP or LOOK (if end of gzip stream) */
+            strm->avail_out = state->size << 1;
+            strm->next_out = state->out;
+            if (gz_decomp(state) == -1)
+                return -1;
+        }
+    } while (state->x.have == 0 && (!state->eof || strm->avail_in));
+    return 0;
+}
+
+/* Skip len uncompressed bytes of output.  Return -1 on error, 0 on success. */
+local int gz_skip(state, len)
+    gz_statep state;
+    z_off64_t len;
+{
+    unsigned n;
+
+    /* skip over len bytes or reach end-of-file, whichever comes first */
+    while (len)
+        /* skip over whatever is in output buffer */
+        if (state->x.have) {
+            n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
+                (unsigned)len : state->x.have;
+            state->x.have -= n;
+            state->x.next += n;
+            state->x.pos += n;
+            len -= n;
+        }
+
+        /* output buffer empty -- return if we're at the end of the input */
+        else if (state->eof && state->strm.avail_in == 0)
+            break;
+
+        /* need more data to skip -- load up output buffer */
+        else {
+            /* get more output, looking for header if required */
+            if (gz_fetch(state) == -1)
+                return -1;
+        }
+    return 0;
+}
+
+/* Read len bytes into buf from file, or less than len up to the end of the
+   input.  Return the number of bytes read.  If zero is returned, either the
+   end of file was reached, or there was an error.  state->err must be
+   consulted in that case to determine which. */
+local z_size_t gz_read(state, buf, len)
+    gz_statep state;
+    voidp buf;
+    z_size_t len;
+{
+    z_size_t got;
+    unsigned n;
+
+    /* if len is zero, avoid unnecessary operations */
+    if (len == 0)
+        return 0;
+
+    /* process a skip request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_skip(state, state->skip) == -1)
+            return 0;
+    }
+
+    /* get len bytes to buf, or less than len if at the end */
+    got = 0;
+    do {
+        /* set n to the maximum amount of len that fits in an unsigned int */
+        n = -1;
+        if (n > len)
+            n = len;
+
+        /* first just try copying data from the output buffer */
+        if (state->x.have) {
+            if (state->x.have < n)
+                n = state->x.have;
+            memcpy(buf, state->x.next, n);
+            state->x.next += n;
+            state->x.have -= n;
+        }
+
+        /* output buffer empty -- return if we're at the end of the input */
+        else if (state->eof && state->strm.avail_in == 0) {
+            state->past = 1;        /* tried to read past end */
+            break;
+        }
+
+        /* need output data -- for small len or new stream load up our output
+           buffer */
+        else if (state->how == LOOK || n < (state->size << 1)) {
+            /* get more output, looking for header if required */
+            if (gz_fetch(state) == -1)
+                return 0;
+            continue;       /* no progress yet -- go back to copy above */
+            /* the copy above assures that we will leave with space in the
+               output buffer, allowing at least one gzungetc() to succeed */
+        }
+
+        /* large len -- read directly into user buffer */
+        else if (state->how == COPY) {      /* read directly */
+            if (gz_load(state, (unsigned char *)buf, n, &n) == -1)
+                return 0;
+        }
+
+        /* large len -- decompress directly into user buffer */
+        else {  /* state->how == GZIP */
+            state->strm.avail_out = n;
+            state->strm.next_out = (unsigned char *)buf;
+            if (gz_decomp(state) == -1)
+                return 0;
+            n = state->x.have;
+            state->x.have = 0;
+        }
+
+        /* update progress */
+        len -= n;
+        buf = (char *)buf + n;
+        got += n;
+        state->x.pos += n;
+    } while (len);
+
+    /* return number of bytes read into user buffer */
+    return got;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzread(file, buf, len)
+    gzFile file;
+    voidp buf;
+    unsigned len;
+{
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+            (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* since an int is returned, make sure len fits in one, otherwise return
+       with an error (this avoids a flaw in the interface) */
+    if ((int)len < 0) {
+        gz_error(state, Z_STREAM_ERROR, "request does not fit in an int");
+        return -1;
+    }
+
+    /* read len or fewer bytes to buf */
+    len = gz_read(state, buf, len);
+
+    /* check for an error */
+    if (len == 0 && state->err != Z_OK && state->err != Z_BUF_ERROR)
+        return -1;
+
+    /* return the number of bytes read (this is assured to fit in an int) */
+    return (int)len;
+}
+
+/* -- see zlib.h -- */
+z_size_t ZEXPORT gzfread(buf, size, nitems, file)
+    voidp buf;
+    z_size_t size;
+    z_size_t nitems;
+    gzFile file;
+{
+    z_size_t len;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+            (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return 0;
+
+    /* compute bytes to read -- error on overflow */
+    len = nitems * size;
+    if (size && len / size != nitems) {
+        gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
+        return 0;
+    }
+
+    /* read len or fewer bytes to buf, return the number of full items read */
+    return len ? gz_read(state, buf, len) / size : 0;
+}
+
+/* -- see zlib.h -- */
+#ifdef Z_PREFIX_SET
+#  undef z_gzgetc
+#else
+#  undef gzgetc
+#endif
+int ZEXPORT gzgetc(file)
+    gzFile file;
+{
+    int ret;
+    unsigned char buf[1];
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+        (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* try output buffer (no need to check for skip request) */
+    if (state->x.have) {
+        state->x.have--;
+        state->x.pos++;
+        return *(state->x.next)++;
+    }
+
+    /* nothing there -- try gz_read() */
+    ret = gz_read(state, buf, 1);
+    return ret < 1 ? -1 : buf[0];
+}
+
+int ZEXPORT gzgetc_(file)
+gzFile file;
+{
+    return gzgetc(file);
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzungetc(c, file)
+    int c;
+    gzFile file;
+{
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+        (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return -1;
+
+    /* process a skip request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_skip(state, state->skip) == -1)
+            return -1;
+    }
+
+    /* can't push EOF */
+    if (c < 0)
+        return -1;
+
+    /* if output buffer empty, put byte at end (allows more pushing) */
+    if (state->x.have == 0) {
+        state->x.have = 1;
+        state->x.next = state->out + (state->size << 1) - 1;
+        state->x.next[0] = (unsigned char)c;
+        state->x.pos--;
+        state->past = 0;
+        return c;
+    }
+
+    /* if no room, give up (must have already done a gzungetc()) */
+    if (state->x.have == (state->size << 1)) {
+        gz_error(state, Z_DATA_ERROR, "out of room to push characters");
+        return -1;
+    }
+
+    /* slide output data if needed and insert byte before existing data */
+    if (state->x.next == state->out) {
+        unsigned char *src = state->out + state->x.have;
+        unsigned char *dest = state->out + (state->size << 1);
+        while (src > state->out)
+            *--dest = *--src;
+        state->x.next = dest;
+    }
+    state->x.have++;
+    state->x.next--;
+    state->x.next[0] = (unsigned char)c;
+    state->x.pos--;
+    state->past = 0;
+    return c;
+}
+
+/* -- see zlib.h -- */
+char * ZEXPORT gzgets(file, buf, len)
+    gzFile file;
+    char *buf;
+    int len;
+{
+    unsigned left, n;
+    char *str;
+    unsigned char *eol;
+    gz_statep state;
+
+    /* check parameters and get internal structure */
+    if (file == NULL || buf == NULL || len < 1)
+        return NULL;
+    state = (gz_statep)file;
+
+    /* check that we're reading and that there's no (serious) error */
+    if (state->mode != GZ_READ ||
+        (state->err != Z_OK && state->err != Z_BUF_ERROR))
+        return NULL;
+
+    /* process a skip request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_skip(state, state->skip) == -1)
+            return NULL;
+    }
+
+    /* copy output bytes up to new line or len - 1, whichever comes first --
+       append a terminating zero to the string (we don't check for a zero in
+       the contents, let the user worry about that) */
+    str = buf;
+    left = (unsigned)len - 1;
+    if (left) do {
+        /* assure that something is in the output buffer */
+        if (state->x.have == 0 && gz_fetch(state) == -1)
+            return NULL;                /* error */
+        if (state->x.have == 0) {       /* end of file */
+            state->past = 1;            /* read past end */
+            break;                      /* return what we have */
+        }
+
+        /* look for end-of-line in current output buffer */
+        n = state->x.have > left ? left : state->x.have;
+        eol = (unsigned char *)memchr(state->x.next, '\n', n);
+        if (eol != NULL)
+            n = (unsigned)(eol - state->x.next) + 1;
+
+        /* copy through end-of-line, or remainder if not found */
+        memcpy(buf, state->x.next, n);
+        state->x.have -= n;
+        state->x.next += n;
+        state->x.pos += n;
+        left -= n;
+        buf += n;
+    } while (left && eol == NULL);
+
+    /* return terminated string, or if nothing, end of file */
+    if (buf == str)
+        return NULL;
+    buf[0] = 0;
+    return str;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzdirect(file)
+    gzFile file;
+{
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* if the state is not known, but we can find out, then do so (this is
+       mainly for right after a gzopen() or gzdopen()) */
+    if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
+        (void)gz_look(state);
+
+    /* return 1 if transparent, 0 if processing a gzip stream */
+    return state->direct;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzclose_r(file)
+    gzFile file;
+{
+    int ret, err;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    /* check that we're reading */
+    if (state->mode != GZ_READ)
+        return Z_STREAM_ERROR;
+
+    /* free memory and close file */
+    if (state->size) {
+        inflateEnd(&(state->strm));
+        free(state->out);
+        free(state->in);
+    }
+    err = state->err == Z_BUF_ERROR ? Z_BUF_ERROR : Z_OK;
+    gz_error(state, Z_OK, NULL);
+    free(state->path);
+    ret = close(state->fd);
+    free(state);
+    return ret ? Z_ERRNO : err;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/gzwrite.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzwrite.c
new file mode 100644
index 000000000..c7b5651d7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/gzwrite.c
@@ -0,0 +1,665 @@
+/* gzwrite.c -- zlib functions for writing gzip files
+ * Copyright (C) 2004-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "gzguts.h"
+
+/* Local functions */
+local int gz_init OF((gz_statep));
+local int gz_comp OF((gz_statep, int));
+local int gz_zero OF((gz_statep, z_off64_t));
+local z_size_t gz_write OF((gz_statep, voidpc, z_size_t));
+
+/* Initialize state for writing a gzip file.  Mark initialization by setting
+   state->size to non-zero.  Return -1 on a memory allocation failure, or 0 on
+   success. */
+local int gz_init(state)
+    gz_statep state;
+{
+    int ret;
+    z_streamp strm = &(state->strm);
+
+    /* allocate input buffer (double size for gzprintf) */
+    state->in = (unsigned char *)malloc(state->want << 1);
+    if (state->in == NULL) {
+        gz_error(state, Z_MEM_ERROR, "out of memory");
+        return -1;
+    }
+
+    /* only need output buffer and deflate state if compressing */
+    if (!state->direct) {
+        /* allocate output buffer */
+        state->out = (unsigned char *)malloc(state->want);
+        if (state->out == NULL) {
+            free(state->in);
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+
+        /* allocate deflate memory, set up for gzip compression */
+        strm->zalloc = Z_NULL;
+        strm->zfree = Z_NULL;
+        strm->opaque = Z_NULL;
+        ret = deflateInit2(strm, state->level, Z_DEFLATED,
+                           MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
+        if (ret != Z_OK) {
+            free(state->out);
+            free(state->in);
+            gz_error(state, Z_MEM_ERROR, "out of memory");
+            return -1;
+        }
+        strm->next_in = NULL;
+    }
+
+    /* mark state as initialized */
+    state->size = state->want;
+
+    /* initialize write buffer if compressing */
+    if (!state->direct) {
+        strm->avail_out = state->size;
+        strm->next_out = state->out;
+        state->x.next = strm->next_out;
+    }
+    return 0;
+}
+
+/* Compress whatever is at avail_in and next_in and write to the output file.
+   Return -1 if there is an error writing to the output file or if gz_init()
+   fails to allocate memory, otherwise 0.  flush is assumed to be a valid
+   deflate() flush value.  If flush is Z_FINISH, then the deflate() state is
+   reset to start a new gzip stream.  If gz->direct is true, then simply write
+   to the output file without compressing, and ignore flush. */
+local int gz_comp(state, flush)
+    gz_statep state;
+    int flush;
+{
+    int ret, writ;
+    unsigned have, put, max = ((unsigned)-1 >> 2) + 1;
+    z_streamp strm = &(state->strm);
+
+    /* allocate memory if this is the first time through */
+    if (state->size == 0 && gz_init(state) == -1)
+        return -1;
+
+    /* write directly if requested */
+    if (state->direct) {
+        while (strm->avail_in) {
+            put = strm->avail_in > max ? max : strm->avail_in;
+            writ = write(state->fd, strm->next_in, put);
+            if (writ < 0) {
+                gz_error(state, Z_ERRNO, zstrerror());
+                return -1;
+            }
+            strm->avail_in -= (unsigned)writ;
+            strm->next_in += writ;
+        }
+        return 0;
+    }
+
+    /* run deflate() on provided input until it produces no more output */
+    ret = Z_OK;
+    do {
+        /* write out current buffer contents if full, or if flushing, but if
+           doing Z_FINISH then don't write until we get to Z_STREAM_END */
+        if (strm->avail_out == 0 || (flush != Z_NO_FLUSH &&
+            (flush != Z_FINISH || ret == Z_STREAM_END))) {
+            while (strm->next_out > state->x.next) {
+                put = strm->next_out - state->x.next > (int)max ? max :
+                      (unsigned)(strm->next_out - state->x.next);
+                writ = write(state->fd, state->x.next, put);
+                if (writ < 0) {
+                    gz_error(state, Z_ERRNO, zstrerror());
+                    return -1;
+                }
+                state->x.next += writ;
+            }
+            if (strm->avail_out == 0) {
+                strm->avail_out = state->size;
+                strm->next_out = state->out;
+                state->x.next = state->out;
+            }
+        }
+
+        /* compress */
+        have = strm->avail_out;
+        ret = deflate(strm, flush);
+        if (ret == Z_STREAM_ERROR) {
+            gz_error(state, Z_STREAM_ERROR,
+                      "internal error: deflate stream corrupt");
+            return -1;
+        }
+        have -= strm->avail_out;
+    } while (have);
+
+    /* if that completed a deflate stream, allow another to start */
+    if (flush == Z_FINISH)
+        deflateReset(strm);
+
+    /* all done, no errors */
+    return 0;
+}
+
+/* Compress len zeros to output.  Return -1 on a write error or memory
+   allocation failure by gz_comp(), or 0 on success. */
+local int gz_zero(state, len)
+    gz_statep state;
+    z_off64_t len;
+{
+    int first;
+    unsigned n;
+    z_streamp strm = &(state->strm);
+
+    /* consume whatever's left in the input buffer */
+    if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
+        return -1;
+
+    /* compress len zeros (len guaranteed > 0) */
+    first = 1;
+    while (len) {
+        n = GT_OFF(state->size) || (z_off64_t)state->size > len ?
+            (unsigned)len : state->size;
+        if (first) {
+            memset(state->in, 0, n);
+            first = 0;
+        }
+        strm->avail_in = n;
+        strm->next_in = state->in;
+        state->x.pos += n;
+        if (gz_comp(state, Z_NO_FLUSH) == -1)
+            return -1;
+        len -= n;
+    }
+    return 0;
+}
+
+/* Write len bytes from buf to file.  Return the number of bytes written.  If
+   the returned value is less than len, then there was an error. */
+local z_size_t gz_write(state, buf, len)
+    gz_statep state;
+    voidpc buf;
+    z_size_t len;
+{
+    z_size_t put = len;
+
+    /* if len is zero, avoid unnecessary operations */
+    if (len == 0)
+        return 0;
+
+    /* allocate memory if this is the first time through */
+    if (state->size == 0 && gz_init(state) == -1)
+        return 0;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return 0;
+    }
+
+    /* for small len, copy to input buffer, otherwise compress directly */
+    if (len < state->size) {
+        /* copy to input buffer, compress when full */
+        do {
+            unsigned have, copy;
+
+            if (state->strm.avail_in == 0)
+                state->strm.next_in = state->in;
+            have = (unsigned)((state->strm.next_in + state->strm.avail_in) -
+                              state->in);
+            copy = state->size - have;
+            if (copy > len)
+                copy = len;
+            memcpy(state->in + have, buf, copy);
+            state->strm.avail_in += copy;
+            state->x.pos += copy;
+            buf = (const char *)buf + copy;
+            len -= copy;
+            if (len && gz_comp(state, Z_NO_FLUSH) == -1)
+                return 0;
+        } while (len);
+    }
+    else {
+        /* consume whatever's left in the input buffer */
+        if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
+            return 0;
+
+        /* directly compress user buffer to file */
+        state->strm.next_in = (z_const Bytef *)buf;
+        do {
+            unsigned n = (unsigned)-1;
+            if (n > len)
+                n = len;
+            state->strm.avail_in = n;
+            state->x.pos += n;
+            if (gz_comp(state, Z_NO_FLUSH) == -1)
+                return 0;
+            len -= n;
+        } while (len);
+    }
+
+    /* input was all buffered or compressed */
+    return put;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzwrite(file, buf, len)
+    gzFile file;
+    voidpc buf;
+    unsigned len;
+{
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return 0;
+
+    /* since an int is returned, make sure len fits in one, otherwise return
+       with an error (this avoids a flaw in the interface) */
+    if ((int)len < 0) {
+        gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
+        return 0;
+    }
+
+    /* write len bytes from buf (the return value will fit in an int) */
+    return (int)gz_write(state, buf, len);
+}
+
+/* -- see zlib.h -- */
+z_size_t ZEXPORT gzfwrite(buf, size, nitems, file)
+    voidpc buf;
+    z_size_t size;
+    z_size_t nitems;
+    gzFile file;
+{
+    z_size_t len;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return 0;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return 0;
+
+    /* compute bytes to read -- error on overflow */
+    len = nitems * size;
+    if (size && len / size != nitems) {
+        gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
+        return 0;
+    }
+
+    /* write len bytes to buf, return the number of full items written */
+    return len ? gz_write(state, buf, len) / size : 0;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzputc(file, c)
+    gzFile file;
+    int c;
+{
+    unsigned have;
+    unsigned char buf[1];
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return -1;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return -1;
+    }
+
+    /* try writing to input buffer for speed (state->size == 0 if buffer not
+       initialized) */
+    if (state->size) {
+        if (strm->avail_in == 0)
+            strm->next_in = state->in;
+        have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
+        if (have < state->size) {
+            state->in[have] = (unsigned char)c;
+            strm->avail_in++;
+            state->x.pos++;
+            return c & 0xff;
+        }
+    }
+
+    /* no room in buffer or not initialized, use gz_write() */
+    buf[0] = (unsigned char)c;
+    if (gz_write(state, buf, 1) != 1)
+        return -1;
+    return c & 0xff;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzputs(file, str)
+    gzFile file;
+    const char *str;
+{
+    int ret;
+    z_size_t len;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return -1;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return -1;
+
+    /* write string */
+    len = strlen(str);
+    ret = gz_write(state, str, len);
+    return ret == 0 && len != 0 ? -1 : ret;
+}
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#include <stdarg.h>
+
+/* -- see zlib.h -- */
+int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va)
+{
+    int len;
+    unsigned left;
+    char *next;
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* make sure we have some buffer space */
+    if (state->size == 0 && gz_init(state) == -1)
+        return state->err;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->err;
+    }
+
+    /* do the printf() into the input buffer, put length in len -- the input
+       buffer is double-sized just for this function, so there is guaranteed to
+       be state->size bytes available after the current contents */
+    if (strm->avail_in == 0)
+        strm->next_in = state->in;
+    next = (char *)(state->in + (strm->next_in - state->in) + strm->avail_in);
+    next[state->size - 1] = 0;
+#ifdef NO_vsnprintf
+#  ifdef HAS_vsprintf_void
+    (void)vsprintf(next, format, va);
+    for (len = 0; len < state->size; len++)
+        if (next[len] == 0) break;
+#  else
+    len = vsprintf(next, format, va);
+#  endif
+#else
+#  ifdef HAS_vsnprintf_void
+    (void)vsnprintf(next, state->size, format, va);
+    len = strlen(next);
+#  else
+    len = vsnprintf(next, state->size, format, va);
+#  endif
+#endif
+
+    /* check that printf() results fit in buffer */
+    if (len == 0 || (unsigned)len >= state->size || next[state->size - 1] != 0)
+        return 0;
+
+    /* update buffer and position, compress first half if past that */
+    strm->avail_in += (unsigned)len;
+    state->x.pos += len;
+    if (strm->avail_in >= state->size) {
+        left = strm->avail_in - state->size;
+        strm->avail_in = state->size;
+        if (gz_comp(state, Z_NO_FLUSH) == -1)
+            return state->err;
+        memcpy(state->in, state->in + state->size, left);
+        strm->next_in = state->in;
+        strm->avail_in = left;
+    }
+    return len;
+}
+
+int ZEXPORTVA gzprintf(gzFile file, const char *format, ...)
+{
+    va_list va;
+    int ret;
+
+    va_start(va, format);
+    ret = gzvprintf(file, format, va);
+    va_end(va);
+    return ret;
+}
+
+#else /* !STDC && !Z_HAVE_STDARG_H */
+
+/* -- see zlib.h -- */
+int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
+                       a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
+    gzFile file;
+    const char *format;
+    int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
+        a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
+{
+    unsigned len, left;
+    char *next;
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that can really pass pointer in ints */
+    if (sizeof(int) != sizeof(void *))
+        return Z_STREAM_ERROR;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* make sure we have some buffer space */
+    if (state->size == 0 && gz_init(state) == -1)
+        return state->error;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->error;
+    }
+
+    /* do the printf() into the input buffer, put length in len -- the input
+       buffer is double-sized just for this function, so there is guaranteed to
+       be state->size bytes available after the current contents */
+    if (strm->avail_in == 0)
+        strm->next_in = state->in;
+    next = (char *)(strm->next_in + strm->avail_in);
+    next[state->size - 1] = 0;
+#ifdef NO_snprintf
+#  ifdef HAS_sprintf_void
+    sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12,
+            a13, a14, a15, a16, a17, a18, a19, a20);
+    for (len = 0; len < size; len++)
+        if (next[len] == 0)
+            break;
+#  else
+    len = sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11,
+                  a12, a13, a14, a15, a16, a17, a18, a19, a20);
+#  endif
+#else
+#  ifdef HAS_snprintf_void
+    snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+             a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+    len = strlen(next);
+#  else
+    len = snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8,
+                   a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
+#  endif
+#endif
+
+    /* check that printf() results fit in buffer */
+    if (len == 0 || len >= state->size || next[state->size - 1] != 0)
+        return 0;
+
+    /* update buffer and position, compress first half if past that */
+    strm->avail_in += len;
+    state->x.pos += len;
+    if (strm->avail_in >= state->size) {
+        left = strm->avail_in - state->size;
+        strm->avail_in = state->size;
+        if (gz_comp(state, Z_NO_FLUSH) == -1)
+            return state->err;
+        memcpy(state->in, state->in + state->size, left);
+        strm->next_in = state->in;
+        strm->avail_in = left;
+    }
+    return (int)len;
+}
+
+#endif
+
+/* -- see zlib.h -- */
+int ZEXPORT gzflush(file, flush)
+    gzFile file;
+    int flush;
+{
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* check flush parameter */
+    if (flush < 0 || flush > Z_FINISH)
+        return Z_STREAM_ERROR;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->err;
+    }
+
+    /* compress remaining data with requested flush */
+    (void)gz_comp(state, flush);
+    return state->err;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzsetparams(file, level, strategy)
+    gzFile file;
+    int level;
+    int strategy;
+{
+    gz_statep state;
+    z_streamp strm;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+    strm = &(state->strm);
+
+    /* check that we're writing and that there's no error */
+    if (state->mode != GZ_WRITE || state->err != Z_OK)
+        return Z_STREAM_ERROR;
+
+    /* if no change is requested, then do nothing */
+    if (level == state->level && strategy == state->strategy)
+        return Z_OK;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            return state->err;
+    }
+
+    /* change compression parameters for subsequent input */
+    if (state->size) {
+        /* flush previous input with previous parameters before changing */
+        if (strm->avail_in && gz_comp(state, Z_BLOCK) == -1)
+            return state->err;
+        deflateParams(strm, level, strategy);
+    }
+    state->level = level;
+    state->strategy = strategy;
+    return Z_OK;
+}
+
+/* -- see zlib.h -- */
+int ZEXPORT gzclose_w(file)
+    gzFile file;
+{
+    int ret = Z_OK;
+    gz_statep state;
+
+    /* get internal structure */
+    if (file == NULL)
+        return Z_STREAM_ERROR;
+    state = (gz_statep)file;
+
+    /* check that we're writing */
+    if (state->mode != GZ_WRITE)
+        return Z_STREAM_ERROR;
+
+    /* check for seek request */
+    if (state->seek) {
+        state->seek = 0;
+        if (gz_zero(state, state->skip) == -1)
+            ret = state->err;
+    }
+
+    /* flush, free memory, and close file */
+    if (gz_comp(state, Z_FINISH) == -1)
+        ret = state->err;
+    if (state->size) {
+        if (!state->direct) {
+            (void)deflateEnd(&(state->strm));
+            free(state->out);
+        }
+        free(state->in);
+    }
+    gz_error(state, Z_OK, NULL);
+    free(state->path);
+    if (close(state->fd) == -1)
+        ret = Z_ERRNO;
+    free(state);
+    return ret;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/infback.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/infback.c
new file mode 100644
index 000000000..59679ecbf
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/infback.c
@@ -0,0 +1,640 @@
+/* infback.c -- inflate using a call-back interface
+ * Copyright (C) 1995-2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+   This code is largely copied from inflate.c.  Normally either infback.o or
+   inflate.o would be linked into an application--not both.  The interface
+   with inffast.c is retained so that optimized assembler-coded versions of
+   inflate_fast() can be used with either inflate.c or infback.c.
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+/* function prototypes */
+local void fixedtables OF((struct inflate_state FAR *state));
+
+/*
+   strm provides memory allocation functions in zalloc and zfree, or
+   Z_NULL to use the library memory allocation functions.
+
+   windowBits is in the range 8..15, and window is a user-supplied
+   window and output buffer that is 2**windowBits bytes.
+ */
+int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size)
+z_streamp strm;
+int windowBits;
+unsigned char FAR *window;
+const char *version;
+int stream_size;
+{
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL || window == Z_NULL ||
+        windowBits < 8 || windowBits > 15)
+        return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+#endif
+    }
+    if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+    strm->zfree = zcfree;
+#endif
+    state = (struct inflate_state FAR *)ZALLOC(strm, 1,
+                                               sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (struct internal_state FAR *)state;
+    state->dmax = 32768U;
+    state->wbits = (uInt)windowBits;
+    state->wsize = 1U << windowBits;
+    state->window = window;
+    state->wnext = 0;
+    state->whave = 0;
+    return Z_OK;
+}
+
+/*
+   Return state with length and distance decoding tables and index sizes set to
+   fixed code decoding.  Normally this returns fixed tables from inffixed.h.
+   If BUILDFIXED is defined, then instead this routine builds the tables the
+   first time it's called, and returns those tables the first time and
+   thereafter.  This reduces the size of the code by about 2K bytes, in
+   exchange for a little execution time.  However, BUILDFIXED should not be
+   used for threaded applications, since the rewriting of the tables and virgin
+   may not be thread-safe.
+ */
+local void fixedtables(state)
+struct inflate_state FAR *state;
+{
+#ifdef BUILDFIXED
+    static int virgin = 1;
+    static code *lenfix, *distfix;
+    static code fixed[544];
+
+    /* build fixed huffman tables if first call (may not be thread safe) */
+    if (virgin) {
+        unsigned sym, bits;
+        static code *next;
+
+        /* literal/length table */
+        sym = 0;
+        while (sym < 144) state->lens[sym++] = 8;
+        while (sym < 256) state->lens[sym++] = 9;
+        while (sym < 280) state->lens[sym++] = 7;
+        while (sym < 288) state->lens[sym++] = 8;
+        next = fixed;
+        lenfix = next;
+        bits = 9;
+        inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
+
+        /* distance table */
+        sym = 0;
+        while (sym < 32) state->lens[sym++] = 5;
+        distfix = next;
+        bits = 5;
+        inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
+
+        /* do this just once */
+        virgin = 0;
+    }
+#else /* !BUILDFIXED */
+#   include "inffixed.h"
+#endif /* BUILDFIXED */
+    state->lencode = lenfix;
+    state->lenbits = 9;
+    state->distcode = distfix;
+    state->distbits = 5;
+}
+
+/* Macros for inflateBack(): */
+
+/* Load returned state from inflate_fast() */
+#define LOAD() \
+    do { \
+        put = strm->next_out; \
+        left = strm->avail_out; \
+        next = strm->next_in; \
+        have = strm->avail_in; \
+        hold = state->hold; \
+        bits = state->bits; \
+    } while (0)
+
+/* Set state from registers for inflate_fast() */
+#define RESTORE() \
+    do { \
+        strm->next_out = put; \
+        strm->avail_out = left; \
+        strm->next_in = next; \
+        strm->avail_in = have; \
+        state->hold = hold; \
+        state->bits = bits; \
+    } while (0)
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Assure that some input is available.  If input is requested, but denied,
+   then return a Z_BUF_ERROR from inflateBack(). */
+#define PULL() \
+    do { \
+        if (have == 0) { \
+            have = in(in_desc, &next); \
+            if (have == 0) { \
+                next = Z_NULL; \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflateBack()
+   with an error if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        PULL(); \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflateBack() with
+   an error. */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n < 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/* Assure that some output space is available, by writing out the window
+   if it's full.  If the write fails, return from inflateBack() with a
+   Z_BUF_ERROR. */
+#define ROOM() \
+    do { \
+        if (left == 0) { \
+            put = state->window; \
+            left = state->wsize; \
+            state->whave = left; \
+            if (out(out_desc, put, left)) { \
+                ret = Z_BUF_ERROR; \
+                goto inf_leave; \
+            } \
+        } \
+    } while (0)
+
+/*
+   strm provides the memory allocation functions and window buffer on input,
+   and provides information on the unused input on return.  For Z_DATA_ERROR
+   returns, strm will also provide an error message.
+
+   in() and out() are the call-back input and output functions.  When
+   inflateBack() needs more input, it calls in().  When inflateBack() has
+   filled the window with output, or when it completes with data in the
+   window, it calls out() to write out the data.  The application must not
+   change the provided input until in() is called again or inflateBack()
+   returns.  The application must not change the window/output buffer until
+   inflateBack() returns.
+
+   in() and out() are called with a descriptor parameter provided in the
+   inflateBack() call.  This parameter can be a structure that provides the
+   information required to do the read or write, as well as accumulated
+   information on the input and output such as totals and check values.
+
+   in() should return zero on failure.  out() should return non-zero on
+   failure.  If either in() or out() fails, than inflateBack() returns a
+   Z_BUF_ERROR.  strm->next_in can be checked for Z_NULL to see whether it
+   was in() or out() that caused in the error.  Otherwise,  inflateBack()
+   returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format
+   error, or Z_MEM_ERROR if it could not allocate memory for the state.
+   inflateBack() can also return Z_STREAM_ERROR if the input parameters
+   are not correct, i.e. strm is Z_NULL or the state was not initialized.
+ */
+int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc)
+z_streamp strm;
+in_func in;
+void FAR *in_desc;
+out_func out;
+void FAR *out_desc;
+{
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have, left;        /* available input and output */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned copy;              /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code here;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+    /* Check that the strm exists and that the state was initialized */
+    if (strm == Z_NULL || strm->state == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* Reset the state */
+    strm->msg = Z_NULL;
+    state->mode = TYPE;
+    state->last = 0;
+    state->whave = 0;
+    next = strm->next_in;
+    have = next != Z_NULL ? strm->avail_in : 0;
+    hold = 0;
+    bits = 0;
+    put = state->window;
+    left = state->wsize;
+
+    /* Inflate until end of block marked as last */
+    for (;;)
+        switch (state->mode) {
+        case TYPE:
+            /* determine and dispatch block type */
+            if (state->last) {
+                BYTEBITS();
+                state->mode = DONE;
+                break;
+            }
+            NEEDBITS(3);
+            state->last = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                fixedtables(state);
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = LEN;              /* decode codes */
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                state->mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+
+        case STORED:
+            /* get and verify stored block length */
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                state->mode = BAD;
+                break;
+            }
+            state->length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %u\n",
+                    state->length));
+            INITBITS();
+
+            /* copy stored block from input to output */
+            while (state->length != 0) {
+                copy = state->length;
+                PULL();
+                ROOM();
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                state->length -= copy;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            state->mode = TYPE;
+            break;
+
+        case TABLE:
+            /* get dynamic table entries descriptor */
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+#ifndef PKZIP_BUG_WORKAROUND
+            if (state->nlen > 286 || state->ndist > 30) {
+                strm->msg = (char *)"too many length or distance symbols";
+                state->mode = BAD;
+                break;
+            }
+#endif
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+
+            /* get code length code lengths (not a typo) */
+            state->have = 0;
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            state->lencode = (code const FAR *)(state->next);
+            state->lenbits = 7;
+            ret = inflate_table(CODES, state->lens, 19, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+
+            /* get length and distance code code lengths */
+            state->have = 0;
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    here = state->lencode[BITS(state->lenbits)];
+                    if ((unsigned)(here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (here.val < 16) {
+                    DROPBITS(here.bits);
+                    state->lens[state->have++] = here.val;
+                }
+                else {
+                    if (here.val == 16) {
+                        NEEDBITS(here.bits + 2);
+                        DROPBITS(here.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            state->mode = BAD;
+                            break;
+                        }
+                        len = (unsigned)(state->lens[state->have - 1]);
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (here.val == 17) {
+                        NEEDBITS(here.bits + 3);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(here.bits + 7);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        state->mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* handle error breaks in while */
+            if (state->mode == BAD) break;
+
+            /* check for end-of-block code (better have one) */
+            if (state->lens[256] == 0) {
+                strm->msg = (char *)"invalid code -- missing end-of-block";
+                state->mode = BAD;
+                break;
+            }
+
+            /* build code tables -- note: do not change the lenbits or distbits
+               values here (9 and 6) without reading the comments in inftrees.h
+               concerning the ENOUGH constants, which depend on those values */
+            state->next = state->codes;
+            state->lencode = (code const FAR *)(state->next);
+            state->lenbits = 9;
+            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                state->mode = BAD;
+                break;
+            }
+            state->distcode = (code const FAR *)(state->next);
+            state->distbits = 6;
+            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
+                            &(state->next), &(state->distbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            state->mode = LEN;
+
+        case LEN:
+            /* use inflate_fast() if we have enough input and output */
+            if (have >= 6 && left >= 258) {
+                RESTORE();
+                if (state->whave < state->wsize)
+                    state->whave = state->wsize - left;
+                inflate_fast(strm, state->wsize);
+                LOAD();
+                break;
+            }
+
+            /* get a literal, length, or end-of-block code */
+            for (;;) {
+                here = state->lencode[BITS(state->lenbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (here.op && (here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            state->length = (unsigned)here.val;
+
+            /* process literal */
+            if (here.op == 0) {
+                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", here.val));
+                ROOM();
+                *put++ = (unsigned char)(state->length);
+                left--;
+                state->mode = LEN;
+                break;
+            }
+
+            /* process end of block */
+            if (here.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                state->mode = TYPE;
+                break;
+            }
+
+            /* invalid code */
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                state->mode = BAD;
+                break;
+            }
+
+            /* length code -- get extra bits, if any */
+            state->extra = (unsigned)(here.op) & 15;
+            if (state->extra != 0) {
+                NEEDBITS(state->extra);
+                state->length += BITS(state->extra);
+                DROPBITS(state->extra);
+            }
+            Tracevv((stderr, "inflate:         length %u\n", state->length));
+
+            /* get distance code */
+            for (;;) {
+                here = state->distcode[BITS(state->distbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+            }
+            DROPBITS(here.bits);
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                state->mode = BAD;
+                break;
+            }
+            state->offset = (unsigned)here.val;
+
+            /* get distance extra bits, if any */
+            state->extra = (unsigned)(here.op) & 15;
+            if (state->extra != 0) {
+                NEEDBITS(state->extra);
+                state->offset += BITS(state->extra);
+                DROPBITS(state->extra);
+            }
+            if (state->offset > state->wsize - (state->whave < state->wsize ?
+                                                left : 0)) {
+                strm->msg = (char *)"invalid distance too far back";
+                state->mode = BAD;
+                break;
+            }
+            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
+
+            /* copy match from window to output */
+            do {
+                ROOM();
+                copy = state->wsize - state->offset;
+                if (copy < left) {
+                    from = put + copy;
+                    copy = left - copy;
+                }
+                else {
+                    from = put - state->offset;
+                    copy = left;
+                }
+                if (copy > state->length) copy = state->length;
+                state->length -= copy;
+                left -= copy;
+                do {
+                    *put++ = *from++;
+                } while (--copy);
+            } while (state->length != 0);
+            break;
+
+        case DONE:
+            /* inflate stream terminated properly -- write leftover output */
+            ret = Z_STREAM_END;
+            if (left < state->wsize) {
+                if (out(out_desc, state->window, state->wsize - left))
+                    ret = Z_BUF_ERROR;
+            }
+            goto inf_leave;
+
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+
+        default:                /* can't happen, but makes compilers happy */
+            ret = Z_STREAM_ERROR;
+            goto inf_leave;
+        }
+
+    /* Return unused input */
+  inf_leave:
+    strm->next_in = next;
+    strm->avail_in = have;
+    return ret;
+}
+
+int ZEXPORT inflateBackEnd(strm)
+z_streamp strm;
+{
+    if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0)
+        return Z_STREAM_ERROR;
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inffast.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/inffast.c
new file mode 100644
index 000000000..0dbd1dbc0
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inffast.c
@@ -0,0 +1,323 @@
+/* inffast.c -- fast decoding
+ * Copyright (C) 1995-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+#ifdef ASMINF
+#  pragma message("Assembler code may have bugs -- use at your own risk")
+#else
+
+/*
+   Decode literal, length, and distance codes and write out the resulting
+   literal and match bytes until either not enough input or output is
+   available, an end-of-block is encountered, or a data error is encountered.
+   When large enough input and output buffers are supplied to inflate(), for
+   example, a 16K input buffer and a 64K output buffer, more than 95% of the
+   inflate execution time is spent in this routine.
+
+   Entry assumptions:
+
+        state->mode == LEN
+        strm->avail_in >= 6
+        strm->avail_out >= 258
+        start >= strm->avail_out
+        state->bits < 8
+
+   On return, state->mode is one of:
+
+        LEN -- ran out of enough output space or enough available input
+        TYPE -- reached end of block code, inflate() to interpret next block
+        BAD -- error in block data
+
+   Notes:
+
+    - The maximum input bits used by a length/distance pair is 15 bits for the
+      length code, 5 bits for the length extra, 15 bits for the distance code,
+      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
+      Therefore if strm->avail_in >= 6, then there is enough input to avoid
+      checking for available input while decoding.
+
+    - The maximum bytes that a single length/distance pair can output is 258
+      bytes, which is the maximum length that can be coded.  inflate_fast()
+      requires strm->avail_out >= 258 for each loop to avoid checking for
+      output space.
+ */
+void ZLIB_INTERNAL inflate_fast(strm, start)
+z_streamp strm;
+unsigned start;         /* inflate()'s starting value for strm->avail_out */
+{
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *in;      /* local strm->next_in */
+    z_const unsigned char FAR *last;    /* have enough input while in < last */
+    unsigned char FAR *out;     /* local strm->next_out */
+    unsigned char FAR *beg;     /* inflate()'s initial strm->next_out */
+    unsigned char FAR *end;     /* while out < end, enough space available */
+#ifdef INFLATE_STRICT
+    unsigned dmax;              /* maximum distance from zlib header */
+#endif
+    unsigned wsize;             /* window size or zero if not using window */
+    unsigned whave;             /* valid bytes in the window */
+    unsigned wnext;             /* window write index */
+    unsigned char FAR *window;  /* allocated sliding window, if wsize != 0 */
+    unsigned long hold;         /* local strm->hold */
+    unsigned bits;              /* local strm->bits */
+    code const FAR *lcode;      /* local strm->lencode */
+    code const FAR *dcode;      /* local strm->distcode */
+    unsigned lmask;             /* mask for first level of length codes */
+    unsigned dmask;             /* mask for first level of distance codes */
+    code here;                  /* retrieved table entry */
+    unsigned op;                /* code bits, operation, extra bits, or */
+                                /*  window position, window bytes to copy */
+    unsigned len;               /* match length, unused bytes */
+    unsigned dist;              /* match distance */
+    unsigned char FAR *from;    /* where to copy match from */
+
+    /* copy state to local variables */
+    state = (struct inflate_state FAR *)strm->state;
+    in = strm->next_in;
+    last = in + (strm->avail_in - 5);
+    out = strm->next_out;
+    beg = out - (start - strm->avail_out);
+    end = out + (strm->avail_out - 257);
+#ifdef INFLATE_STRICT
+    dmax = state->dmax;
+#endif
+    wsize = state->wsize;
+    whave = state->whave;
+    wnext = state->wnext;
+    window = state->window;
+    hold = state->hold;
+    bits = state->bits;
+    lcode = state->lencode;
+    dcode = state->distcode;
+    lmask = (1U << state->lenbits) - 1;
+    dmask = (1U << state->distbits) - 1;
+
+    /* decode literals and length/distances until end-of-block or not enough
+       input data or output space */
+    do {
+        if (bits < 15) {
+            hold += (unsigned long)(*in++) << bits;
+            bits += 8;
+            hold += (unsigned long)(*in++) << bits;
+            bits += 8;
+        }
+        here = lcode[hold & lmask];
+      dolen:
+        op = (unsigned)(here.bits);
+        hold >>= op;
+        bits -= op;
+        op = (unsigned)(here.op);
+        if (op == 0) {                          /* literal */
+            Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                    "inflate:         literal '%c'\n" :
+                    "inflate:         literal 0x%02x\n", here.val));
+            *out++ = (unsigned char)(here.val);
+        }
+        else if (op & 16) {                     /* length base */
+            len = (unsigned)(here.val);
+            op &= 15;                           /* number of extra bits */
+            if (op) {
+                if (bits < op) {
+                    hold += (unsigned long)(*in++) << bits;
+                    bits += 8;
+                }
+                len += (unsigned)hold & ((1U << op) - 1);
+                hold >>= op;
+                bits -= op;
+            }
+            Tracevv((stderr, "inflate:         length %u\n", len));
+            if (bits < 15) {
+                hold += (unsigned long)(*in++) << bits;
+                bits += 8;
+                hold += (unsigned long)(*in++) << bits;
+                bits += 8;
+            }
+            here = dcode[hold & dmask];
+          dodist:
+            op = (unsigned)(here.bits);
+            hold >>= op;
+            bits -= op;
+            op = (unsigned)(here.op);
+            if (op & 16) {                      /* distance base */
+                dist = (unsigned)(here.val);
+                op &= 15;                       /* number of extra bits */
+                if (bits < op) {
+                    hold += (unsigned long)(*in++) << bits;
+                    bits += 8;
+                    if (bits < op) {
+                        hold += (unsigned long)(*in++) << bits;
+                        bits += 8;
+                    }
+                }
+                dist += (unsigned)hold & ((1U << op) - 1);
+#ifdef INFLATE_STRICT
+                if (dist > dmax) {
+                    strm->msg = (char *)"invalid distance too far back";
+                    state->mode = BAD;
+                    break;
+                }
+#endif
+                hold >>= op;
+                bits -= op;
+                Tracevv((stderr, "inflate:         distance %u\n", dist));
+                op = (unsigned)(out - beg);     /* max distance in output */
+                if (dist > op) {                /* see if copy from window */
+                    op = dist - op;             /* distance back in window */
+                    if (op > whave) {
+                        if (state->sane) {
+                            strm->msg =
+                                (char *)"invalid distance too far back";
+                            state->mode = BAD;
+                            break;
+                        }
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+                        if (len <= op - whave) {
+                            do {
+                                *out++ = 0;
+                            } while (--len);
+                            continue;
+                        }
+                        len -= op - whave;
+                        do {
+                            *out++ = 0;
+                        } while (--op > whave);
+                        if (op == 0) {
+                            from = out - dist;
+                            do {
+                                *out++ = *from++;
+                            } while (--len);
+                            continue;
+                        }
+#endif
+                    }
+                    from = window;
+                    if (wnext == 0) {           /* very common case */
+                        from += wsize - op;
+                        if (op < len) {         /* some from window */
+                            len -= op;
+                            do {
+                                *out++ = *from++;
+                            } while (--op);
+                            from = out - dist;  /* rest from output */
+                        }
+                    }
+                    else if (wnext < op) {      /* wrap around window */
+                        from += wsize + wnext - op;
+                        op -= wnext;
+                        if (op < len) {         /* some from end of window */
+                            len -= op;
+                            do {
+                                *out++ = *from++;
+                            } while (--op);
+                            from = window;
+                            if (wnext < len) {  /* some from start of window */
+                                op = wnext;
+                                len -= op;
+                                do {
+                                    *out++ = *from++;
+                                } while (--op);
+                                from = out - dist;      /* rest from output */
+                            }
+                        }
+                    }
+                    else {                      /* contiguous in window */
+                        from += wnext - op;
+                        if (op < len) {         /* some from window */
+                            len -= op;
+                            do {
+                                *out++ = *from++;
+                            } while (--op);
+                            from = out - dist;  /* rest from output */
+                        }
+                    }
+                    while (len > 2) {
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        len -= 3;
+                    }
+                    if (len) {
+                        *out++ = *from++;
+                        if (len > 1)
+                            *out++ = *from++;
+                    }
+                }
+                else {
+                    from = out - dist;          /* copy direct from output */
+                    do {                        /* minimum length is three */
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        len -= 3;
+                    } while (len > 2);
+                    if (len) {
+                        *out++ = *from++;
+                        if (len > 1)
+                            *out++ = *from++;
+                    }
+                }
+            }
+            else if ((op & 64) == 0) {          /* 2nd level distance code */
+                here = dcode[here.val + (hold & ((1U << op) - 1))];
+                goto dodist;
+            }
+            else {
+                strm->msg = (char *)"invalid distance code";
+                state->mode = BAD;
+                break;
+            }
+        }
+        else if ((op & 64) == 0) {              /* 2nd level length code */
+            here = lcode[here.val + (hold & ((1U << op) - 1))];
+            goto dolen;
+        }
+        else if (op & 32) {                     /* end-of-block */
+            Tracevv((stderr, "inflate:         end of block\n"));
+            state->mode = TYPE;
+            break;
+        }
+        else {
+            strm->msg = (char *)"invalid literal/length code";
+            state->mode = BAD;
+            break;
+        }
+    } while (in < last && out < end);
+
+    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
+    len = bits >> 3;
+    in -= len;
+    bits -= len << 3;
+    hold &= (1U << bits) - 1;
+
+    /* update state and return */
+    strm->next_in = in;
+    strm->next_out = out;
+    strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
+    strm->avail_out = (unsigned)(out < end ?
+                                 257 + (end - out) : 257 - (out - end));
+    state->hold = hold;
+    state->bits = bits;
+    return;
+}
+
+/*
+   inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe):
+   - Using bit fields for code structure
+   - Different op definition to avoid & for extra bits (do & for table bits)
+   - Three separate decoding do-loops for direct, window, and wnext == 0
+   - Special case for distance > 1 copies to do overlapped load and store copy
+   - Explicit branch predictions (based on measured branch probabilities)
+   - Deferring match copy and interspersed it with decoding subsequent codes
+   - Swapping literal/length else
+   - Swapping window/direct else
+   - Larger unrolled copy loops (three is about right)
+   - Moving len -= 3 statement into middle of loop
+ */
+
+#endif /* !ASMINF */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inffast.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/inffast.h
new file mode 100644
index 000000000..e5c1aa4ca
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inffast.h
@@ -0,0 +1,11 @@
+/* inffast.h -- header to use inffast.c
+ * Copyright (C) 1995-2003, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+void ZLIB_INTERNAL inflate_fast OF((z_streamp strm, unsigned start));
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inffixed.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/inffixed.h
new file mode 100644
index 000000000..d62832776
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inffixed.h
@@ -0,0 +1,94 @@
+    /* inffixed.h -- table for decoding fixed codes
+     * Generated automatically by makefixed().
+     */
+
+    /* WARNING: this file should *not* be used by applications.
+       It is part of the implementation of this library and is
+       subject to change. Applications should only use zlib.h.
+     */
+
+    static const code lenfix[512] = {
+        {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48},
+        {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128},
+        {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59},
+        {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176},
+        {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20},
+        {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100},
+        {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8},
+        {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216},
+        {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76},
+        {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114},
+        {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2},
+        {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148},
+        {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42},
+        {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86},
+        {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15},
+        {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236},
+        {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62},
+        {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142},
+        {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31},
+        {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162},
+        {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25},
+        {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105},
+        {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4},
+        {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202},
+        {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69},
+        {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125},
+        {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13},
+        {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195},
+        {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35},
+        {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91},
+        {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19},
+        {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246},
+        {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55},
+        {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135},
+        {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99},
+        {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190},
+        {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16},
+        {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96},
+        {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6},
+        {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209},
+        {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72},
+        {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116},
+        {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4},
+        {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153},
+        {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44},
+        {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82},
+        {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11},
+        {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229},
+        {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58},
+        {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138},
+        {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51},
+        {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173},
+        {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30},
+        {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110},
+        {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0},
+        {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195},
+        {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65},
+        {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121},
+        {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9},
+        {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258},
+        {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37},
+        {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93},
+        {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23},
+        {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251},
+        {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51},
+        {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131},
+        {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67},
+        {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183},
+        {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23},
+        {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103},
+        {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9},
+        {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223},
+        {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79},
+        {0,9,255}
+    };
+
+    static const code distfix[32] = {
+        {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025},
+        {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193},
+        {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385},
+        {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577},
+        {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073},
+        {22,5,193},{64,5,0}
+    };
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inflate.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/inflate.c
new file mode 100644
index 000000000..ac333e8c2
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inflate.c
@@ -0,0 +1,1561 @@
+/* inflate.c -- zlib decompression
+ * Copyright (C) 1995-2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * Change history:
+ *
+ * 1.2.beta0    24 Nov 2002
+ * - First version -- complete rewrite of inflate to simplify code, avoid
+ *   creation of window when not needed, minimize use of window when it is
+ *   needed, make inffast.c even faster, implement gzip decoding, and to
+ *   improve code readability and style over the previous zlib inflate code
+ *
+ * 1.2.beta1    25 Nov 2002
+ * - Use pointers for available input and output checking in inffast.c
+ * - Remove input and output counters in inffast.c
+ * - Change inffast.c entry and loop from avail_in >= 7 to >= 6
+ * - Remove unnecessary second byte pull from length extra in inffast.c
+ * - Unroll direct copy to three copies per loop in inffast.c
+ *
+ * 1.2.beta2    4 Dec 2002
+ * - Change external routine names to reduce potential conflicts
+ * - Correct filename to inffixed.h for fixed tables in inflate.c
+ * - Make hbuf[] unsigned char to match parameter type in inflate.c
+ * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset)
+ *   to avoid negation problem on Alphas (64 bit) in inflate.c
+ *
+ * 1.2.beta3    22 Dec 2002
+ * - Add comments on state->bits assertion in inffast.c
+ * - Add comments on op field in inftrees.h
+ * - Fix bug in reuse of allocated window after inflateReset()
+ * - Remove bit fields--back to byte structure for speed
+ * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths
+ * - Change post-increments to pre-increments in inflate_fast(), PPC biased?
+ * - Add compile time option, POSTINC, to use post-increments instead (Intel?)
+ * - Make MATCH copy in inflate() much faster for when inflate_fast() not used
+ * - Use local copies of stream next and avail values, as well as local bit
+ *   buffer and bit count in inflate()--for speed when inflate_fast() not used
+ *
+ * 1.2.beta4    1 Jan 2003
+ * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings
+ * - Move a comment on output buffer sizes from inffast.c to inflate.c
+ * - Add comments in inffast.c to introduce the inflate_fast() routine
+ * - Rearrange window copies in inflate_fast() for speed and simplification
+ * - Unroll last copy for window match in inflate_fast()
+ * - Use local copies of window variables in inflate_fast() for speed
+ * - Pull out common wnext == 0 case for speed in inflate_fast()
+ * - Make op and len in inflate_fast() unsigned for consistency
+ * - Add FAR to lcode and dcode declarations in inflate_fast()
+ * - Simplified bad distance check in inflate_fast()
+ * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new
+ *   source file infback.c to provide a call-back interface to inflate for
+ *   programs like gzip and unzip -- uses window as output buffer to avoid
+ *   window copying
+ *
+ * 1.2.beta5    1 Jan 2003
+ * - Improved inflateBack() interface to allow the caller to provide initial
+ *   input in strm.
+ * - Fixed stored blocks bug in inflateBack()
+ *
+ * 1.2.beta6    4 Jan 2003
+ * - Added comments in inffast.c on effectiveness of POSTINC
+ * - Typecasting all around to reduce compiler warnings
+ * - Changed loops from while (1) or do {} while (1) to for (;;), again to
+ *   make compilers happy
+ * - Changed type of window in inflateBackInit() to unsigned char *
+ *
+ * 1.2.beta7    27 Jan 2003
+ * - Changed many types to unsigned or unsigned short to avoid warnings
+ * - Added inflateCopy() function
+ *
+ * 1.2.0        9 Mar 2003
+ * - Changed inflateBack() interface to provide separate opaque descriptors
+ *   for the in() and out() functions
+ * - Changed inflateBack() argument and in_func typedef to swap the length
+ *   and buffer address return values for the input function
+ * - Check next_in and next_out for Z_NULL on entry to inflate()
+ *
+ * The history for versions after 1.2.0 are in ChangeLog in zlib distribution.
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+#include "inflate.h"
+#include "inffast.h"
+
+#ifdef MAKEFIXED
+#  ifndef BUILDFIXED
+#    define BUILDFIXED
+#  endif
+#endif
+
+/* function prototypes */
+local int inflateStateCheck OF((z_streamp strm));
+local void fixedtables OF((struct inflate_state FAR *state));
+local int updatewindow OF((z_streamp strm, const unsigned char FAR *end,
+                           unsigned copy));
+#ifdef BUILDFIXED
+   void makefixed OF((void));
+#endif
+local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf,
+                              unsigned len));
+
+local int inflateStateCheck(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+    if (strm == Z_NULL ||
+        strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0)
+        return 1;
+    state = (struct inflate_state FAR *)strm->state;
+    if (state == Z_NULL || state->strm != strm ||
+        state->mode < HEAD || state->mode > SYNC)
+        return 1;
+    return 0;
+}
+
+int ZEXPORT inflateResetKeep(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    strm->total_in = strm->total_out = state->total = 0;
+    strm->msg = Z_NULL;
+    if (state->wrap)        /* to support ill-conceived Java test suite */
+        strm->adler = state->wrap & 1;
+    state->mode = HEAD;
+    state->last = 0;
+    state->havedict = 0;
+    state->dmax = 32768U;
+    state->head = Z_NULL;
+    state->hold = 0;
+    state->bits = 0;
+    state->lencode = state->distcode = state->next = state->codes;
+    state->sane = 1;
+    state->back = -1;
+    Tracev((stderr, "inflate: reset\n"));
+    return Z_OK;
+}
+
+int ZEXPORT inflateReset(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    state->wsize = 0;
+    state->whave = 0;
+    state->wnext = 0;
+    return inflateResetKeep(strm);
+}
+
+int ZEXPORT inflateReset2(strm, windowBits)
+z_streamp strm;
+int windowBits;
+{
+    int wrap;
+    struct inflate_state FAR *state;
+
+    /* get the state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* extract wrap request from windowBits parameter */
+    if (windowBits < 0) {
+        wrap = 0;
+        windowBits = -windowBits;
+    }
+    else {
+        wrap = (windowBits >> 4) + 5;
+#ifdef GUNZIP
+        if (windowBits < 48)
+            windowBits &= 15;
+#endif
+    }
+
+    /* set number of window bits, free window if different */
+    if (windowBits && (windowBits < 8 || windowBits > 15))
+        return Z_STREAM_ERROR;
+    if (state->window != Z_NULL && state->wbits != (unsigned)windowBits) {
+        ZFREE(strm, state->window);
+        state->window = Z_NULL;
+    }
+
+    /* update state and reset the rest of it */
+    state->wrap = wrap;
+    state->wbits = (unsigned)windowBits;
+    return inflateReset(strm);
+}
+
+int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size)
+z_streamp strm;
+int windowBits;
+const char *version;
+int stream_size;
+{
+    int ret;
+    struct inflate_state FAR *state;
+
+    if (version == Z_NULL || version[0] != ZLIB_VERSION[0] ||
+        stream_size != (int)(sizeof(z_stream)))
+        return Z_VERSION_ERROR;
+    if (strm == Z_NULL) return Z_STREAM_ERROR;
+    strm->msg = Z_NULL;                 /* in case we return an error */
+    if (strm->zalloc == (alloc_func)0) {
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zalloc = zcalloc;
+        strm->opaque = (voidpf)0;
+#endif
+    }
+    if (strm->zfree == (free_func)0)
+#ifdef Z_SOLO
+        return Z_STREAM_ERROR;
+#else
+        strm->zfree = zcfree;
+#endif
+    state = (struct inflate_state FAR *)
+            ZALLOC(strm, 1, sizeof(struct inflate_state));
+    if (state == Z_NULL) return Z_MEM_ERROR;
+    Tracev((stderr, "inflate: allocated\n"));
+    strm->state = (struct internal_state FAR *)state;
+    state->strm = strm;
+    state->window = Z_NULL;
+    state->mode = HEAD;     /* to pass state test in inflateReset2() */
+    ret = inflateReset2(strm, windowBits);
+    if (ret != Z_OK) {
+        ZFREE(strm, state);
+        strm->state = Z_NULL;
+    }
+    return ret;
+}
+
+int ZEXPORT inflateInit_(strm, version, stream_size)
+z_streamp strm;
+const char *version;
+int stream_size;
+{
+    return inflateInit2_(strm, DEF_WBITS, version, stream_size);
+}
+
+int ZEXPORT inflatePrime(strm, bits, value)
+z_streamp strm;
+int bits;
+int value;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (bits < 0) {
+        state->hold = 0;
+        state->bits = 0;
+        return Z_OK;
+    }
+    if (bits > 16 || state->bits + (uInt)bits > 32) return Z_STREAM_ERROR;
+    value &= (1L << bits) - 1;
+    state->hold += (unsigned)value << state->bits;
+    state->bits += (uInt)bits;
+    return Z_OK;
+}
+
+/*
+   Return state with length and distance decoding tables and index sizes set to
+   fixed code decoding.  Normally this returns fixed tables from inffixed.h.
+   If BUILDFIXED is defined, then instead this routine builds the tables the
+   first time it's called, and returns those tables the first time and
+   thereafter.  This reduces the size of the code by about 2K bytes, in
+   exchange for a little execution time.  However, BUILDFIXED should not be
+   used for threaded applications, since the rewriting of the tables and virgin
+   may not be thread-safe.
+ */
+local void fixedtables(state)
+struct inflate_state FAR *state;
+{
+#ifdef BUILDFIXED
+    static int virgin = 1;
+    static code *lenfix, *distfix;
+    static code fixed[544];
+
+    /* build fixed huffman tables if first call (may not be thread safe) */
+    if (virgin) {
+        unsigned sym, bits;
+        static code *next;
+
+        /* literal/length table */
+        sym = 0;
+        while (sym < 144) state->lens[sym++] = 8;
+        while (sym < 256) state->lens[sym++] = 9;
+        while (sym < 280) state->lens[sym++] = 7;
+        while (sym < 288) state->lens[sym++] = 8;
+        next = fixed;
+        lenfix = next;
+        bits = 9;
+        inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work);
+
+        /* distance table */
+        sym = 0;
+        while (sym < 32) state->lens[sym++] = 5;
+        distfix = next;
+        bits = 5;
+        inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work);
+
+        /* do this just once */
+        virgin = 0;
+    }
+#else /* !BUILDFIXED */
+#   include "inffixed.h"
+#endif /* BUILDFIXED */
+    state->lencode = lenfix;
+    state->lenbits = 9;
+    state->distcode = distfix;
+    state->distbits = 5;
+}
+
+#ifdef MAKEFIXED
+#include <stdio.h>
+
+/*
+   Write out the inffixed.h that is #include'd above.  Defining MAKEFIXED also
+   defines BUILDFIXED, so the tables are built on the fly.  makefixed() writes
+   those tables to stdout, which would be piped to inffixed.h.  A small program
+   can simply call makefixed to do this:
+
+    void makefixed(void);
+
+    int main(void)
+    {
+        makefixed();
+        return 0;
+    }
+
+   Then that can be linked with zlib built with MAKEFIXED defined and run:
+
+    a.out > inffixed.h
+ */
+void makefixed()
+{
+    unsigned low, size;
+    struct inflate_state state;
+
+    fixedtables(&state);
+    puts("    /* inffixed.h -- table for decoding fixed codes");
+    puts("     * Generated automatically by makefixed().");
+    puts("     */");
+    puts("");
+    puts("    /* WARNING: this file should *not* be used by applications.");
+    puts("       It is part of the implementation of this library and is");
+    puts("       subject to change. Applications should only use zlib.h.");
+    puts("     */");
+    puts("");
+    size = 1U << 9;
+    printf("    static const code lenfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 7) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", (low & 127) == 99 ? 64 : state.lencode[low].op,
+               state.lencode[low].bits, state.lencode[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+    size = 1U << 5;
+    printf("\n    static const code distfix[%u] = {", size);
+    low = 0;
+    for (;;) {
+        if ((low % 6) == 0) printf("\n        ");
+        printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits,
+               state.distcode[low].val);
+        if (++low == size) break;
+        putchar(',');
+    }
+    puts("\n    };");
+}
+#endif /* MAKEFIXED */
+
+/*
+   Update the window with the last wsize (normally 32K) bytes written before
+   returning.  If window does not exist yet, create it.  This is only called
+   when a window is already in use, or when output has been written during this
+   inflate call, but the end of the deflate stream has not been reached yet.
+   It is also called to create a window for dictionary data when a dictionary
+   is loaded.
+
+   Providing output buffers larger than 32K to inflate() should provide a speed
+   advantage, since only the last 32K of output is copied to the sliding window
+   upon return from inflate(), and since all distances after the first 32K of
+   output will fall in the output data, making match copies simpler and faster.
+   The advantage may be dependent on the size of the processor's data caches.
+ */
+local int updatewindow(strm, end, copy)
+z_streamp strm;
+const Bytef *end;
+unsigned copy;
+{
+    struct inflate_state FAR *state;
+    unsigned dist;
+
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* if it hasn't been done already, allocate space for the window */
+    if (state->window == Z_NULL) {
+        state->window = (unsigned char FAR *)
+                        ZALLOC(strm, 1U << state->wbits,
+                               sizeof(unsigned char));
+        if (state->window == Z_NULL) return 1;
+    }
+
+    /* if window not in use yet, initialize */
+    if (state->wsize == 0) {
+        state->wsize = 1U << state->wbits;
+        state->wnext = 0;
+        state->whave = 0;
+    }
+
+    /* copy state->wsize or less output bytes into the circular window */
+    if (copy >= state->wsize) {
+        zmemcpy(state->window, end - state->wsize, state->wsize);
+        state->wnext = 0;
+        state->whave = state->wsize;
+    }
+    else {
+        dist = state->wsize - state->wnext;
+        if (dist > copy) dist = copy;
+        zmemcpy(state->window + state->wnext, end - copy, dist);
+        copy -= dist;
+        if (copy) {
+            zmemcpy(state->window, end - copy, copy);
+            state->wnext = copy;
+            state->whave = state->wsize;
+        }
+        else {
+            state->wnext += dist;
+            if (state->wnext == state->wsize) state->wnext = 0;
+            if (state->whave < state->wsize) state->whave += dist;
+        }
+    }
+    return 0;
+}
+
+/* Macros for inflate(): */
+
+/* check function to use adler32() for zlib or crc32() for gzip */
+#ifdef GUNZIP
+#  define UPDATE(check, buf, len) \
+    (state->flags ? crc32(check, buf, len) : adler32(check, buf, len))
+#else
+#  define UPDATE(check, buf, len) adler32(check, buf, len)
+#endif
+
+/* check macros for header crc */
+#ifdef GUNZIP
+#  define CRC2(check, word) \
+    do { \
+        hbuf[0] = (unsigned char)(word); \
+        hbuf[1] = (unsigned char)((word) >> 8); \
+        check = crc32(check, hbuf, 2); \
+    } while (0)
+
+#  define CRC4(check, word) \
+    do { \
+        hbuf[0] = (unsigned char)(word); \
+        hbuf[1] = (unsigned char)((word) >> 8); \
+        hbuf[2] = (unsigned char)((word) >> 16); \
+        hbuf[3] = (unsigned char)((word) >> 24); \
+        check = crc32(check, hbuf, 4); \
+    } while (0)
+#endif
+
+/* Load registers with state in inflate() for speed */
+#define LOAD() \
+    do { \
+        put = strm->next_out; \
+        left = strm->avail_out; \
+        next = strm->next_in; \
+        have = strm->avail_in; \
+        hold = state->hold; \
+        bits = state->bits; \
+    } while (0)
+
+/* Restore state from registers in inflate() */
+#define RESTORE() \
+    do { \
+        strm->next_out = put; \
+        strm->avail_out = left; \
+        strm->next_in = next; \
+        strm->avail_in = have; \
+        state->hold = hold; \
+        state->bits = bits; \
+    } while (0)
+
+/* Clear the input bit accumulator */
+#define INITBITS() \
+    do { \
+        hold = 0; \
+        bits = 0; \
+    } while (0)
+
+/* Get a byte of input into the bit accumulator, or return from inflate()
+   if there is no input available. */
+#define PULLBYTE() \
+    do { \
+        if (have == 0) goto inf_leave; \
+        have--; \
+        hold += (unsigned long)(*next++) << bits; \
+        bits += 8; \
+    } while (0)
+
+/* Assure that there are at least n bits in the bit accumulator.  If there is
+   not enough available input to do that, then return from inflate(). */
+#define NEEDBITS(n) \
+    do { \
+        while (bits < (unsigned)(n)) \
+            PULLBYTE(); \
+    } while (0)
+
+/* Return the low n bits of the bit accumulator (n < 16) */
+#define BITS(n) \
+    ((unsigned)hold & ((1U << (n)) - 1))
+
+/* Remove n bits from the bit accumulator */
+#define DROPBITS(n) \
+    do { \
+        hold >>= (n); \
+        bits -= (unsigned)(n); \
+    } while (0)
+
+/* Remove zero to seven bits as needed to go to a byte boundary */
+#define BYTEBITS() \
+    do { \
+        hold >>= bits & 7; \
+        bits -= bits & 7; \
+    } while (0)
+
+/*
+   inflate() uses a state machine to process as much input data and generate as
+   much output data as possible before returning.  The state machine is
+   structured roughly as follows:
+
+    for (;;) switch (state) {
+    ...
+    case STATEn:
+        if (not enough input data or output space to make progress)
+            return;
+        ... make progress ...
+        state = STATEm;
+        break;
+    ...
+    }
+
+   so when inflate() is called again, the same case is attempted again, and
+   if the appropriate resources are provided, the machine proceeds to the
+   next state.  The NEEDBITS() macro is usually the way the state evaluates
+   whether it can proceed or should return.  NEEDBITS() does the return if
+   the requested bits are not available.  The typical use of the BITS macros
+   is:
+
+        NEEDBITS(n);
+        ... do something with BITS(n) ...
+        DROPBITS(n);
+
+   where NEEDBITS(n) either returns from inflate() if there isn't enough
+   input left to load n bits into the accumulator, or it continues.  BITS(n)
+   gives the low n bits in the accumulator.  When done, DROPBITS(n) drops
+   the low n bits off the accumulator.  INITBITS() clears the accumulator
+   and sets the number of available bits to zero.  BYTEBITS() discards just
+   enough bits to put the accumulator on a byte boundary.  After BYTEBITS()
+   and a NEEDBITS(8), then BITS(8) would return the next byte in the stream.
+
+   NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return
+   if there is no input available.  The decoding of variable length codes uses
+   PULLBYTE() directly in order to pull just enough bytes to decode the next
+   code, and no more.
+
+   Some states loop until they get enough input, making sure that enough
+   state information is maintained to continue the loop where it left off
+   if NEEDBITS() returns in the loop.  For example, want, need, and keep
+   would all have to actually be part of the saved state in case NEEDBITS()
+   returns:
+
+    case STATEw:
+        while (want < need) {
+            NEEDBITS(n);
+            keep[want++] = BITS(n);
+            DROPBITS(n);
+        }
+        state = STATEx;
+    case STATEx:
+
+   As shown above, if the next state is also the next case, then the break
+   is omitted.
+
+   A state may also return if there is not enough output space available to
+   complete that state.  Those states are copying stored data, writing a
+   literal byte, and copying a matching string.
+
+   When returning, a "goto inf_leave" is used to update the total counters,
+   update the check value, and determine whether any progress has been made
+   during that inflate() call in order to return the proper return code.
+   Progress is defined as a change in either strm->avail_in or strm->avail_out.
+   When there is a window, goto inf_leave will update the window with the last
+   output written.  If a goto inf_leave occurs in the middle of decompression
+   and there is no window currently, goto inf_leave will create one and copy
+   output to the window for the next call of inflate().
+
+   In this implementation, the flush parameter of inflate() only affects the
+   return code (per zlib.h).  inflate() always writes as much as possible to
+   strm->next_out, given the space available and the provided input--the effect
+   documented in zlib.h of Z_SYNC_FLUSH.  Furthermore, inflate() always defers
+   the allocation of and copying into a sliding window until necessary, which
+   provides the effect documented in zlib.h for Z_FINISH when the entire input
+   stream available.  So the only thing the flush parameter actually does is:
+   when flush is set to Z_FINISH, inflate() cannot return Z_OK.  Instead it
+   will return Z_BUF_ERROR if it has not reached the end of the stream.
+ */
+
+int ZEXPORT inflate(strm, flush)
+z_streamp strm;
+int flush;
+{
+    struct inflate_state FAR *state;
+    z_const unsigned char FAR *next;    /* next input */
+    unsigned char FAR *put;     /* next output */
+    unsigned have, left;        /* available input and output */
+    unsigned long hold;         /* bit buffer */
+    unsigned bits;              /* bits in bit buffer */
+    unsigned in, out;           /* save starting available input and output */
+    unsigned copy;              /* number of stored or match bytes to copy */
+    unsigned char FAR *from;    /* where to copy match bytes from */
+    code here;                  /* current decoding table entry */
+    code last;                  /* parent table entry */
+    unsigned len;               /* length to copy for repeats, bits to drop */
+    int ret;                    /* return code */
+#ifdef GUNZIP
+    unsigned char hbuf[4];      /* buffer for gzip header crc calculation */
+#endif
+    static const unsigned short order[19] = /* permutation of code lengths */
+        {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+
+    if (inflateStateCheck(strm) || strm->next_out == Z_NULL ||
+        (strm->next_in == Z_NULL && strm->avail_in != 0))
+        return Z_STREAM_ERROR;
+
+    state = (struct inflate_state FAR *)strm->state;
+    if (state->mode == TYPE) state->mode = TYPEDO;      /* skip check */
+    LOAD();
+    in = have;
+    out = left;
+    ret = Z_OK;
+    for (;;)
+        switch (state->mode) {
+        case HEAD:
+            if (state->wrap == 0) {
+                state->mode = TYPEDO;
+                break;
+            }
+            NEEDBITS(16);
+#ifdef GUNZIP
+            if ((state->wrap & 2) && hold == 0x8b1f) {  /* gzip header */
+                if (state->wbits == 0)
+                    state->wbits = 15;
+                state->check = crc32(0L, Z_NULL, 0);
+                CRC2(state->check, hold);
+                INITBITS();
+                state->mode = FLAGS;
+                break;
+            }
+            state->flags = 0;           /* expect zlib header */
+            if (state->head != Z_NULL)
+                state->head->done = -1;
+            if (!(state->wrap & 1) ||   /* check if zlib header allowed */
+#else
+            if (
+#endif
+                ((BITS(8) << 8) + (hold >> 8)) % 31) {
+                strm->msg = (char *)"incorrect header check";
+                state->mode = BAD;
+                break;
+            }
+            if (BITS(4) != Z_DEFLATED) {
+                strm->msg = (char *)"unknown compression method";
+                state->mode = BAD;
+                break;
+            }
+            DROPBITS(4);
+            len = BITS(4) + 8;
+            if (state->wbits == 0)
+                state->wbits = len;
+            if (len > 15 || len > state->wbits) {
+                strm->msg = (char *)"invalid window size";
+                state->mode = BAD;
+                break;
+            }
+            state->dmax = 1U << len;
+            Tracev((stderr, "inflate:   zlib header ok\n"));
+            strm->adler = state->check = adler32(0L, Z_NULL, 0);
+            state->mode = hold & 0x200 ? DICTID : TYPE;
+            INITBITS();
+            break;
+#ifdef GUNZIP
+        case FLAGS:
+            NEEDBITS(16);
+            state->flags = (int)(hold);
+            if ((state->flags & 0xff) != Z_DEFLATED) {
+                strm->msg = (char *)"unknown compression method";
+                state->mode = BAD;
+                break;
+            }
+            if (state->flags & 0xe000) {
+                strm->msg = (char *)"unknown header flags set";
+                state->mode = BAD;
+                break;
+            }
+            if (state->head != Z_NULL)
+                state->head->text = (int)((hold >> 8) & 1);
+            if ((state->flags & 0x0200) && (state->wrap & 4))
+                CRC2(state->check, hold);
+            INITBITS();
+            state->mode = TIME;
+        case TIME:
+            NEEDBITS(32);
+            if (state->head != Z_NULL)
+                state->head->time = hold;
+            if ((state->flags & 0x0200) && (state->wrap & 4))
+                CRC4(state->check, hold);
+            INITBITS();
+            state->mode = OS;
+        case OS:
+            NEEDBITS(16);
+            if (state->head != Z_NULL) {
+                state->head->xflags = (int)(hold & 0xff);
+                state->head->os = (int)(hold >> 8);
+            }
+            if ((state->flags & 0x0200) && (state->wrap & 4))
+                CRC2(state->check, hold);
+            INITBITS();
+            state->mode = EXLEN;
+        case EXLEN:
+            if (state->flags & 0x0400) {
+                NEEDBITS(16);
+                state->length = (unsigned)(hold);
+                if (state->head != Z_NULL)
+                    state->head->extra_len = (unsigned)hold;
+                if ((state->flags & 0x0200) && (state->wrap & 4))
+                    CRC2(state->check, hold);
+                INITBITS();
+            }
+            else if (state->head != Z_NULL)
+                state->head->extra = Z_NULL;
+            state->mode = EXTRA;
+        case EXTRA:
+            if (state->flags & 0x0400) {
+                copy = state->length;
+                if (copy > have) copy = have;
+                if (copy) {
+                    if (state->head != Z_NULL &&
+                        state->head->extra != Z_NULL) {
+                        len = state->head->extra_len - state->length;
+                        zmemcpy(state->head->extra + len, next,
+                                len + copy > state->head->extra_max ?
+                                state->head->extra_max - len : copy);
+                    }
+                    if ((state->flags & 0x0200) && (state->wrap & 4))
+                        state->check = crc32(state->check, next, copy);
+                    have -= copy;
+                    next += copy;
+                    state->length -= copy;
+                }
+                if (state->length) goto inf_leave;
+            }
+            state->length = 0;
+            state->mode = NAME;
+        case NAME:
+            if (state->flags & 0x0800) {
+                if (have == 0) goto inf_leave;
+                copy = 0;
+                do {
+                    len = (unsigned)(next[copy++]);
+                    if (state->head != Z_NULL &&
+                            state->head->name != Z_NULL &&
+                            state->length < state->head->name_max)
+                        state->head->name[state->length++] = (Bytef)len;
+                } while (len && copy < have);
+                if ((state->flags & 0x0200) && (state->wrap & 4))
+                    state->check = crc32(state->check, next, copy);
+                have -= copy;
+                next += copy;
+                if (len) goto inf_leave;
+            }
+            else if (state->head != Z_NULL)
+                state->head->name = Z_NULL;
+            state->length = 0;
+            state->mode = COMMENT;
+        case COMMENT:
+            if (state->flags & 0x1000) {
+                if (have == 0) goto inf_leave;
+                copy = 0;
+                do {
+                    len = (unsigned)(next[copy++]);
+                    if (state->head != Z_NULL &&
+                            state->head->comment != Z_NULL &&
+                            state->length < state->head->comm_max)
+                        state->head->comment[state->length++] = (Bytef)len;
+                } while (len && copy < have);
+                if ((state->flags & 0x0200) && (state->wrap & 4))
+                    state->check = crc32(state->check, next, copy);
+                have -= copy;
+                next += copy;
+                if (len) goto inf_leave;
+            }
+            else if (state->head != Z_NULL)
+                state->head->comment = Z_NULL;
+            state->mode = HCRC;
+        case HCRC:
+            if (state->flags & 0x0200) {
+                NEEDBITS(16);
+                if ((state->wrap & 4) && hold != (state->check & 0xffff)) {
+                    strm->msg = (char *)"header crc mismatch";
+                    state->mode = BAD;
+                    break;
+                }
+                INITBITS();
+            }
+            if (state->head != Z_NULL) {
+                state->head->hcrc = (int)((state->flags >> 9) & 1);
+                state->head->done = 1;
+            }
+            strm->adler = state->check = crc32(0L, Z_NULL, 0);
+            state->mode = TYPE;
+            break;
+#endif
+        case DICTID:
+            NEEDBITS(32);
+            strm->adler = state->check = ZSWAP32(hold);
+            INITBITS();
+            state->mode = DICT;
+        case DICT:
+            if (state->havedict == 0) {
+                RESTORE();
+                return Z_NEED_DICT;
+            }
+            strm->adler = state->check = adler32(0L, Z_NULL, 0);
+            state->mode = TYPE;
+        case TYPE:
+            if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave;
+        case TYPEDO:
+            if (state->last) {
+                BYTEBITS();
+                state->mode = CHECK;
+                break;
+            }
+            NEEDBITS(3);
+            state->last = BITS(1);
+            DROPBITS(1);
+            switch (BITS(2)) {
+            case 0:                             /* stored block */
+                Tracev((stderr, "inflate:     stored block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = STORED;
+                break;
+            case 1:                             /* fixed block */
+                fixedtables(state);
+                Tracev((stderr, "inflate:     fixed codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = LEN_;             /* decode codes */
+                if (flush == Z_TREES) {
+                    DROPBITS(2);
+                    goto inf_leave;
+                }
+                break;
+            case 2:                             /* dynamic block */
+                Tracev((stderr, "inflate:     dynamic codes block%s\n",
+                        state->last ? " (last)" : ""));
+                state->mode = TABLE;
+                break;
+            case 3:
+                strm->msg = (char *)"invalid block type";
+                state->mode = BAD;
+            }
+            DROPBITS(2);
+            break;
+        case STORED:
+            BYTEBITS();                         /* go to byte boundary */
+            NEEDBITS(32);
+            if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) {
+                strm->msg = (char *)"invalid stored block lengths";
+                state->mode = BAD;
+                break;
+            }
+            state->length = (unsigned)hold & 0xffff;
+            Tracev((stderr, "inflate:       stored length %u\n",
+                    state->length));
+            INITBITS();
+            state->mode = COPY_;
+            if (flush == Z_TREES) goto inf_leave;
+        case COPY_:
+            state->mode = COPY;
+        case COPY:
+            copy = state->length;
+            if (copy) {
+                if (copy > have) copy = have;
+                if (copy > left) copy = left;
+                if (copy == 0) goto inf_leave;
+                zmemcpy(put, next, copy);
+                have -= copy;
+                next += copy;
+                left -= copy;
+                put += copy;
+                state->length -= copy;
+                break;
+            }
+            Tracev((stderr, "inflate:       stored end\n"));
+            state->mode = TYPE;
+            break;
+        case TABLE:
+            NEEDBITS(14);
+            state->nlen = BITS(5) + 257;
+            DROPBITS(5);
+            state->ndist = BITS(5) + 1;
+            DROPBITS(5);
+            state->ncode = BITS(4) + 4;
+            DROPBITS(4);
+#ifndef PKZIP_BUG_WORKAROUND
+            if (state->nlen > 286 || state->ndist > 30) {
+                strm->msg = (char *)"too many length or distance symbols";
+                state->mode = BAD;
+                break;
+            }
+#endif
+            Tracev((stderr, "inflate:       table sizes ok\n"));
+            state->have = 0;
+            state->mode = LENLENS;
+        case LENLENS:
+            while (state->have < state->ncode) {
+                NEEDBITS(3);
+                state->lens[order[state->have++]] = (unsigned short)BITS(3);
+                DROPBITS(3);
+            }
+            while (state->have < 19)
+                state->lens[order[state->have++]] = 0;
+            state->next = state->codes;
+            state->lencode = (const code FAR *)(state->next);
+            state->lenbits = 7;
+            ret = inflate_table(CODES, state->lens, 19, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid code lengths set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       code lengths ok\n"));
+            state->have = 0;
+            state->mode = CODELENS;
+        case CODELENS:
+            while (state->have < state->nlen + state->ndist) {
+                for (;;) {
+                    here = state->lencode[BITS(state->lenbits)];
+                    if ((unsigned)(here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                if (here.val < 16) {
+                    DROPBITS(here.bits);
+                    state->lens[state->have++] = here.val;
+                }
+                else {
+                    if (here.val == 16) {
+                        NEEDBITS(here.bits + 2);
+                        DROPBITS(here.bits);
+                        if (state->have == 0) {
+                            strm->msg = (char *)"invalid bit length repeat";
+                            state->mode = BAD;
+                            break;
+                        }
+                        len = state->lens[state->have - 1];
+                        copy = 3 + BITS(2);
+                        DROPBITS(2);
+                    }
+                    else if (here.val == 17) {
+                        NEEDBITS(here.bits + 3);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 3 + BITS(3);
+                        DROPBITS(3);
+                    }
+                    else {
+                        NEEDBITS(here.bits + 7);
+                        DROPBITS(here.bits);
+                        len = 0;
+                        copy = 11 + BITS(7);
+                        DROPBITS(7);
+                    }
+                    if (state->have + copy > state->nlen + state->ndist) {
+                        strm->msg = (char *)"invalid bit length repeat";
+                        state->mode = BAD;
+                        break;
+                    }
+                    while (copy--)
+                        state->lens[state->have++] = (unsigned short)len;
+                }
+            }
+
+            /* handle error breaks in while */
+            if (state->mode == BAD) break;
+
+            /* check for end-of-block code (better have one) */
+            if (state->lens[256] == 0) {
+                strm->msg = (char *)"invalid code -- missing end-of-block";
+                state->mode = BAD;
+                break;
+            }
+
+            /* build code tables -- note: do not change the lenbits or distbits
+               values here (9 and 6) without reading the comments in inftrees.h
+               concerning the ENOUGH constants, which depend on those values */
+            state->next = state->codes;
+            state->lencode = (const code FAR *)(state->next);
+            state->lenbits = 9;
+            ret = inflate_table(LENS, state->lens, state->nlen, &(state->next),
+                                &(state->lenbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid literal/lengths set";
+                state->mode = BAD;
+                break;
+            }
+            state->distcode = (const code FAR *)(state->next);
+            state->distbits = 6;
+            ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist,
+                            &(state->next), &(state->distbits), state->work);
+            if (ret) {
+                strm->msg = (char *)"invalid distances set";
+                state->mode = BAD;
+                break;
+            }
+            Tracev((stderr, "inflate:       codes ok\n"));
+            state->mode = LEN_;
+            if (flush == Z_TREES) goto inf_leave;
+        case LEN_:
+            state->mode = LEN;
+        case LEN:
+            if (have >= 6 && left >= 258) {
+                RESTORE();
+                inflate_fast(strm, out);
+                LOAD();
+                if (state->mode == TYPE)
+                    state->back = -1;
+                break;
+            }
+            state->back = 0;
+            for (;;) {
+                here = state->lencode[BITS(state->lenbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if (here.op && (here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->lencode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+                state->back += last.bits;
+            }
+            DROPBITS(here.bits);
+            state->back += here.bits;
+            state->length = (unsigned)here.val;
+            if ((int)(here.op) == 0) {
+                Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ?
+                        "inflate:         literal '%c'\n" :
+                        "inflate:         literal 0x%02x\n", here.val));
+                state->mode = LIT;
+                break;
+            }
+            if (here.op & 32) {
+                Tracevv((stderr, "inflate:         end of block\n"));
+                state->back = -1;
+                state->mode = TYPE;
+                break;
+            }
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid literal/length code";
+                state->mode = BAD;
+                break;
+            }
+            state->extra = (unsigned)(here.op) & 15;
+            state->mode = LENEXT;
+        case LENEXT:
+            if (state->extra) {
+                NEEDBITS(state->extra);
+                state->length += BITS(state->extra);
+                DROPBITS(state->extra);
+                state->back += state->extra;
+            }
+            Tracevv((stderr, "inflate:         length %u\n", state->length));
+            state->was = state->length;
+            state->mode = DIST;
+        case DIST:
+            for (;;) {
+                here = state->distcode[BITS(state->distbits)];
+                if ((unsigned)(here.bits) <= bits) break;
+                PULLBYTE();
+            }
+            if ((here.op & 0xf0) == 0) {
+                last = here;
+                for (;;) {
+                    here = state->distcode[last.val +
+                            (BITS(last.bits + last.op) >> last.bits)];
+                    if ((unsigned)(last.bits + here.bits) <= bits) break;
+                    PULLBYTE();
+                }
+                DROPBITS(last.bits);
+                state->back += last.bits;
+            }
+            DROPBITS(here.bits);
+            state->back += here.bits;
+            if (here.op & 64) {
+                strm->msg = (char *)"invalid distance code";
+                state->mode = BAD;
+                break;
+            }
+            state->offset = (unsigned)here.val;
+            state->extra = (unsigned)(here.op) & 15;
+            state->mode = DISTEXT;
+        case DISTEXT:
+            if (state->extra) {
+                NEEDBITS(state->extra);
+                state->offset += BITS(state->extra);
+                DROPBITS(state->extra);
+                state->back += state->extra;
+            }
+#ifdef INFLATE_STRICT
+            if (state->offset > state->dmax) {
+                strm->msg = (char *)"invalid distance too far back";
+                state->mode = BAD;
+                break;
+            }
+#endif
+            Tracevv((stderr, "inflate:         distance %u\n", state->offset));
+            state->mode = MATCH;
+        case MATCH:
+            if (left == 0) goto inf_leave;
+            copy = out - left;
+            if (state->offset > copy) {         /* copy from window */
+                copy = state->offset - copy;
+                if (copy > state->whave) {
+                    if (state->sane) {
+                        strm->msg = (char *)"invalid distance too far back";
+                        state->mode = BAD;
+                        break;
+                    }
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+                    Trace((stderr, "inflate.c too far\n"));
+                    copy -= state->whave;
+                    if (copy > state->length) copy = state->length;
+                    if (copy > left) copy = left;
+                    left -= copy;
+                    state->length -= copy;
+                    do {
+                        *put++ = 0;
+                    } while (--copy);
+                    if (state->length == 0) state->mode = LEN;
+                    break;
+#endif
+                }
+                if (copy > state->wnext) {
+                    copy -= state->wnext;
+                    from = state->window + (state->wsize - copy);
+                }
+                else
+                    from = state->window + (state->wnext - copy);
+                if (copy > state->length) copy = state->length;
+            }
+            else {                              /* copy from output */
+                from = put - state->offset;
+                copy = state->length;
+            }
+            if (copy > left) copy = left;
+            left -= copy;
+            state->length -= copy;
+            do {
+                *put++ = *from++;
+            } while (--copy);
+            if (state->length == 0) state->mode = LEN;
+            break;
+        case LIT:
+            if (left == 0) goto inf_leave;
+            *put++ = (unsigned char)(state->length);
+            left--;
+            state->mode = LEN;
+            break;
+        case CHECK:
+            if (state->wrap) {
+                NEEDBITS(32);
+                out -= left;
+                strm->total_out += out;
+                state->total += out;
+                if ((state->wrap & 4) && out)
+                    strm->adler = state->check =
+                        UPDATE(state->check, put - out, out);
+                out = left;
+                if ((state->wrap & 4) && (
+#ifdef GUNZIP
+                     state->flags ? hold :
+#endif
+                     ZSWAP32(hold)) != state->check) {
+                    strm->msg = (char *)"incorrect data check";
+                    state->mode = BAD;
+                    break;
+                }
+                INITBITS();
+                Tracev((stderr, "inflate:   check matches trailer\n"));
+            }
+#ifdef GUNZIP
+            state->mode = LENGTH;
+        case LENGTH:
+            if (state->wrap && state->flags) {
+                NEEDBITS(32);
+                if (hold != (state->total & 0xffffffffUL)) {
+                    strm->msg = (char *)"incorrect length check";
+                    state->mode = BAD;
+                    break;
+                }
+                INITBITS();
+                Tracev((stderr, "inflate:   length matches trailer\n"));
+            }
+#endif
+            state->mode = DONE;
+        case DONE:
+            ret = Z_STREAM_END;
+            goto inf_leave;
+        case BAD:
+            ret = Z_DATA_ERROR;
+            goto inf_leave;
+        case MEM:
+            return Z_MEM_ERROR;
+        case SYNC:
+        default:
+            return Z_STREAM_ERROR;
+        }
+
+    /*
+       Return from inflate(), updating the total counts and the check value.
+       If there was no progress during the inflate() call, return a buffer
+       error.  Call updatewindow() to create and/or update the window state.
+       Note: a memory error from inflate() is non-recoverable.
+     */
+  inf_leave:
+    RESTORE();
+    if (state->wsize || (out != strm->avail_out && state->mode < BAD &&
+            (state->mode < CHECK || flush != Z_FINISH)))
+        if (updatewindow(strm, strm->next_out, out - strm->avail_out)) {
+            state->mode = MEM;
+            return Z_MEM_ERROR;
+        }
+    in -= strm->avail_in;
+    out -= strm->avail_out;
+    strm->total_in += in;
+    strm->total_out += out;
+    state->total += out;
+    if ((state->wrap & 4) && out)
+        strm->adler = state->check =
+            UPDATE(state->check, strm->next_out - out, out);
+    strm->data_type = (int)state->bits + (state->last ? 64 : 0) +
+                      (state->mode == TYPE ? 128 : 0) +
+                      (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0);
+    if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK)
+        ret = Z_BUF_ERROR;
+    return ret;
+}
+
+int ZEXPORT inflateEnd(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+    if (inflateStateCheck(strm))
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (state->window != Z_NULL) ZFREE(strm, state->window);
+    ZFREE(strm, strm->state);
+    strm->state = Z_NULL;
+    Tracev((stderr, "inflate: end\n"));
+    return Z_OK;
+}
+
+int ZEXPORT inflateGetDictionary(strm, dictionary, dictLength)
+z_streamp strm;
+Bytef *dictionary;
+uInt *dictLength;
+{
+    struct inflate_state FAR *state;
+
+    /* check state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+
+    /* copy dictionary */
+    if (state->whave && dictionary != Z_NULL) {
+        zmemcpy(dictionary, state->window + state->wnext,
+                state->whave - state->wnext);
+        zmemcpy(dictionary + state->whave - state->wnext,
+                state->window, state->wnext);
+    }
+    if (dictLength != Z_NULL)
+        *dictLength = state->whave;
+    return Z_OK;
+}
+
+int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength)
+z_streamp strm;
+const Bytef *dictionary;
+uInt dictLength;
+{
+    struct inflate_state FAR *state;
+    unsigned long dictid;
+    int ret;
+
+    /* check state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (state->wrap != 0 && state->mode != DICT)
+        return Z_STREAM_ERROR;
+
+    /* check for correct dictionary identifier */
+    if (state->mode == DICT) {
+        dictid = adler32(0L, Z_NULL, 0);
+        dictid = adler32(dictid, dictionary, dictLength);
+        if (dictid != state->check)
+            return Z_DATA_ERROR;
+    }
+
+    /* copy dictionary to window using updatewindow(), which will amend the
+       existing dictionary if appropriate */
+    ret = updatewindow(strm, dictionary + dictLength, dictLength);
+    if (ret) {
+        state->mode = MEM;
+        return Z_MEM_ERROR;
+    }
+    state->havedict = 1;
+    Tracev((stderr, "inflate:   dictionary set\n"));
+    return Z_OK;
+}
+
+int ZEXPORT inflateGetHeader(strm, head)
+z_streamp strm;
+gz_headerp head;
+{
+    struct inflate_state FAR *state;
+
+    /* check state */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if ((state->wrap & 2) == 0) return Z_STREAM_ERROR;
+
+    /* save header structure */
+    state->head = head;
+    head->done = 0;
+    return Z_OK;
+}
+
+/*
+   Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff.  Return when found
+   or when out of input.  When called, *have is the number of pattern bytes
+   found in order so far, in 0..3.  On return *have is updated to the new
+   state.  If on return *have equals four, then the pattern was found and the
+   return value is how many bytes were read including the last byte of the
+   pattern.  If *have is less than four, then the pattern has not been found
+   yet and the return value is len.  In the latter case, syncsearch() can be
+   called again with more data and the *have state.  *have is initialized to
+   zero for the first call.
+ */
+local unsigned syncsearch(have, buf, len)
+unsigned FAR *have;
+const unsigned char FAR *buf;
+unsigned len;
+{
+    unsigned got;
+    unsigned next;
+
+    got = *have;
+    next = 0;
+    while (next < len && got < 4) {
+        if ((int)(buf[next]) == (got < 2 ? 0 : 0xff))
+            got++;
+        else if (buf[next])
+            got = 0;
+        else
+            got = 4 - got;
+        next++;
+    }
+    *have = got;
+    return next;
+}
+
+int ZEXPORT inflateSync(strm)
+z_streamp strm;
+{
+    unsigned len;               /* number of bytes to look at or looked at */
+    unsigned long in, out;      /* temporary to save total_in and total_out */
+    unsigned char buf[4];       /* to restore bit buffer to byte string */
+    struct inflate_state FAR *state;
+
+    /* check parameters */
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR;
+
+    /* if first time, start search in bit buffer */
+    if (state->mode != SYNC) {
+        state->mode = SYNC;
+        state->hold <<= state->bits & 7;
+        state->bits -= state->bits & 7;
+        len = 0;
+        while (state->bits >= 8) {
+            buf[len++] = (unsigned char)(state->hold);
+            state->hold >>= 8;
+            state->bits -= 8;
+        }
+        state->have = 0;
+        syncsearch(&(state->have), buf, len);
+    }
+
+    /* search available input */
+    len = syncsearch(&(state->have), strm->next_in, strm->avail_in);
+    strm->avail_in -= len;
+    strm->next_in += len;
+    strm->total_in += len;
+
+    /* return no joy or set up to restart inflate() on a new block */
+    if (state->have != 4) return Z_DATA_ERROR;
+    in = strm->total_in;  out = strm->total_out;
+    inflateReset(strm);
+    strm->total_in = in;  strm->total_out = out;
+    state->mode = TYPE;
+    return Z_OK;
+}
+
+/*
+   Returns true if inflate is currently at the end of a block generated by
+   Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP
+   implementation to provide an additional safety check. PPP uses
+   Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored
+   block. When decompressing, PPP checks that at the end of input packet,
+   inflate is waiting for these length bytes.
+ */
+int ZEXPORT inflateSyncPoint(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    return state->mode == STORED && state->bits == 0;
+}
+
+int ZEXPORT inflateCopy(dest, source)
+z_streamp dest;
+z_streamp source;
+{
+    struct inflate_state FAR *state;
+    struct inflate_state FAR *copy;
+    unsigned char FAR *window;
+    unsigned wsize;
+
+    /* check input */
+    if (inflateStateCheck(source) || dest == Z_NULL)
+        return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)source->state;
+
+    /* allocate space */
+    copy = (struct inflate_state FAR *)
+           ZALLOC(source, 1, sizeof(struct inflate_state));
+    if (copy == Z_NULL) return Z_MEM_ERROR;
+    window = Z_NULL;
+    if (state->window != Z_NULL) {
+        window = (unsigned char FAR *)
+                 ZALLOC(source, 1U << state->wbits, sizeof(unsigned char));
+        if (window == Z_NULL) {
+            ZFREE(source, copy);
+            return Z_MEM_ERROR;
+        }
+    }
+
+    /* copy state */
+    zmemcpy((voidpf)dest, (voidpf)source, sizeof(z_stream));
+    zmemcpy((voidpf)copy, (voidpf)state, sizeof(struct inflate_state));
+    copy->strm = dest;
+    if (state->lencode >= state->codes &&
+        state->lencode <= state->codes + ENOUGH - 1) {
+        copy->lencode = copy->codes + (state->lencode - state->codes);
+        copy->distcode = copy->codes + (state->distcode - state->codes);
+    }
+    copy->next = copy->codes + (state->next - state->codes);
+    if (window != Z_NULL) {
+        wsize = 1U << state->wbits;
+        zmemcpy(window, state->window, wsize);
+    }
+    copy->window = window;
+    dest->state = (struct internal_state FAR *)copy;
+    return Z_OK;
+}
+
+int ZEXPORT inflateUndermine(strm, subvert)
+z_streamp strm;
+int subvert;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR
+    state->sane = !subvert;
+    return Z_OK;
+#else
+    (void)subvert;
+    state->sane = 1;
+    return Z_DATA_ERROR;
+#endif
+}
+
+int ZEXPORT inflateValidate(strm, check)
+z_streamp strm;
+int check;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm)) return Z_STREAM_ERROR;
+    state = (struct inflate_state FAR *)strm->state;
+    if (check)
+        state->wrap |= 4;
+    else
+        state->wrap &= ~4;
+    return Z_OK;
+}
+
+long ZEXPORT inflateMark(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+
+    if (inflateStateCheck(strm))
+        return -(1L << 16);
+    state = (struct inflate_state FAR *)strm->state;
+    return (long)(((unsigned long)((long)state->back)) << 16) +
+        (state->mode == COPY ? state->length :
+            (state->mode == MATCH ? state->was - state->length : 0));
+}
+
+unsigned long ZEXPORT inflateCodesUsed(strm)
+z_streamp strm;
+{
+    struct inflate_state FAR *state;
+    if (inflateStateCheck(strm)) return (unsigned long)-1;
+    state = (struct inflate_state FAR *)strm->state;
+    return (unsigned long)(state->next - state->codes);
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inflate.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/inflate.h
new file mode 100644
index 000000000..a46cce6b6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inflate.h
@@ -0,0 +1,125 @@
+/* inflate.h -- internal inflate state definition
+ * Copyright (C) 1995-2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* define NO_GZIP when compiling if you want to disable gzip header and
+   trailer decoding by inflate().  NO_GZIP would be used to avoid linking in
+   the crc code when it is not needed.  For shared libraries, gzip decoding
+   should be left enabled. */
+#ifndef NO_GZIP
+#  define GUNZIP
+#endif
+
+/* Possible inflate modes between inflate() calls */
+typedef enum {
+    HEAD = 16180,   /* i: waiting for magic header */
+    FLAGS,      /* i: waiting for method and flags (gzip) */
+    TIME,       /* i: waiting for modification time (gzip) */
+    OS,         /* i: waiting for extra flags and operating system (gzip) */
+    EXLEN,      /* i: waiting for extra length (gzip) */
+    EXTRA,      /* i: waiting for extra bytes (gzip) */
+    NAME,       /* i: waiting for end of file name (gzip) */
+    COMMENT,    /* i: waiting for end of comment (gzip) */
+    HCRC,       /* i: waiting for header crc (gzip) */
+    DICTID,     /* i: waiting for dictionary check value */
+    DICT,       /* waiting for inflateSetDictionary() call */
+        TYPE,       /* i: waiting for type bits, including last-flag bit */
+        TYPEDO,     /* i: same, but skip check to exit inflate on new block */
+        STORED,     /* i: waiting for stored size (length and complement) */
+        COPY_,      /* i/o: same as COPY below, but only first time in */
+        COPY,       /* i/o: waiting for input or output to copy stored block */
+        TABLE,      /* i: waiting for dynamic block table lengths */
+        LENLENS,    /* i: waiting for code length code lengths */
+        CODELENS,   /* i: waiting for length/lit and distance code lengths */
+            LEN_,       /* i: same as LEN below, but only first time in */
+            LEN,        /* i: waiting for length/lit/eob code */
+            LENEXT,     /* i: waiting for length extra bits */
+            DIST,       /* i: waiting for distance code */
+            DISTEXT,    /* i: waiting for distance extra bits */
+            MATCH,      /* o: waiting for output space to copy string */
+            LIT,        /* o: waiting for output space to write literal */
+    CHECK,      /* i: waiting for 32-bit check value */
+    LENGTH,     /* i: waiting for 32-bit length (gzip) */
+    DONE,       /* finished check, done -- remain here until reset */
+    BAD,        /* got a data error -- remain here until reset */
+    MEM,        /* got an inflate() memory error -- remain here until reset */
+    SYNC        /* looking for synchronization bytes to restart inflate() */
+} inflate_mode;
+
+/*
+    State transitions between above modes -
+
+    (most modes can go to BAD or MEM on error -- not shown for clarity)
+
+    Process header:
+        HEAD -> (gzip) or (zlib) or (raw)
+        (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME -> COMMENT ->
+                  HCRC -> TYPE
+        (zlib) -> DICTID or TYPE
+        DICTID -> DICT -> TYPE
+        (raw) -> TYPEDO
+    Read deflate blocks:
+            TYPE -> TYPEDO -> STORED or TABLE or LEN_ or CHECK
+            STORED -> COPY_ -> COPY -> TYPE
+            TABLE -> LENLENS -> CODELENS -> LEN_
+            LEN_ -> LEN
+    Read deflate codes in fixed or dynamic block:
+                LEN -> LENEXT or LIT or TYPE
+                LENEXT -> DIST -> DISTEXT -> MATCH -> LEN
+                LIT -> LEN
+    Process trailer:
+        CHECK -> LENGTH -> DONE
+ */
+
+/* State maintained between inflate() calls -- approximately 7K bytes, not
+   including the allocated sliding window, which is up to 32K bytes. */
+struct inflate_state {
+    z_streamp strm;             /* pointer back to this zlib stream */
+    inflate_mode mode;          /* current inflate mode */
+    int last;                   /* true if processing last block */
+    int wrap;                   /* bit 0 true for zlib, bit 1 true for gzip,
+                                   bit 2 true to validate check value */
+    int havedict;               /* true if dictionary provided */
+    int flags;                  /* gzip header method and flags (0 if zlib) */
+    unsigned dmax;              /* zlib header max distance (INFLATE_STRICT) */
+    unsigned long check;        /* protected copy of check value */
+    unsigned long total;        /* protected copy of output count */
+    gz_headerp head;            /* where to save gzip header information */
+        /* sliding window */
+    unsigned wbits;             /* log base 2 of requested window size */
+    unsigned wsize;             /* window size or zero if not using window */
+    unsigned whave;             /* valid bytes in the window */
+    unsigned wnext;             /* window write index */
+    unsigned char FAR *window;  /* allocated sliding window, if needed */
+        /* bit accumulator */
+    unsigned long hold;         /* input bit accumulator */
+    unsigned bits;              /* number of bits in "in" */
+        /* for string and stored block copying */
+    unsigned length;            /* literal or length of data to copy */
+    unsigned offset;            /* distance back to copy string from */
+        /* for table and code decoding */
+    unsigned extra;             /* extra bits needed */
+        /* fixed and dynamic code tables */
+    code const FAR *lencode;    /* starting table for length/literal codes */
+    code const FAR *distcode;   /* starting table for distance codes */
+    unsigned lenbits;           /* index bits for lencode */
+    unsigned distbits;          /* index bits for distcode */
+        /* dynamic table building */
+    unsigned ncode;             /* number of code length code lengths */
+    unsigned nlen;              /* number of length code lengths */
+    unsigned ndist;             /* number of distance code lengths */
+    unsigned have;              /* number of code lengths in lens[] */
+    code FAR *next;             /* next available space in codes[] */
+    unsigned short lens[320];   /* temporary storage for code lengths */
+    unsigned short work[288];   /* work area for code table building */
+    code codes[ENOUGH];         /* space for code tables */
+    int sane;                   /* if false, allow invalid distance too far */
+    int back;                   /* bits back of last unprocessed length/lit */
+    unsigned was;               /* initial length of match */
+};
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inftrees.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/inftrees.c
new file mode 100644
index 000000000..2ea08fc13
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inftrees.c
@@ -0,0 +1,304 @@
+/* inftrees.c -- generate Huffman trees for efficient decoding
+ * Copyright (C) 1995-2017 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+#include "zutil.h"
+#include "inftrees.h"
+
+#define MAXBITS 15
+
+const char inflate_copyright[] =
+   " inflate 1.2.11 Copyright 1995-2017 Mark Adler ";
+/*
+  If you use the zlib library in a product, an acknowledgment is welcome
+  in the documentation of your product. If for some reason you cannot
+  include such an acknowledgment, I would appreciate that you keep this
+  copyright string in the executable of your product.
+ */
+
+/*
+   Build a set of tables to decode the provided canonical Huffman code.
+   The code lengths are lens[0..codes-1].  The result starts at *table,
+   whose indices are 0..2^bits-1.  work is a writable array of at least
+   lens shorts, which is used as a work area.  type is the type of code
+   to be generated, CODES, LENS, or DISTS.  On return, zero is success,
+   -1 is an invalid code, and +1 means that ENOUGH isn't enough.  table
+   on return points to the next available entry's address.  bits is the
+   requested root table index bits, and on return it is the actual root
+   table index bits.  It will differ if the request is greater than the
+   longest code or if it is less than the shortest code.
+ */
+int ZLIB_INTERNAL inflate_table(type, lens, codes, table, bits, work)
+codetype type;
+unsigned short FAR *lens;
+unsigned codes;
+code FAR * FAR *table;
+unsigned FAR *bits;
+unsigned short FAR *work;
+{
+    unsigned len;               /* a code's length in bits */
+    unsigned sym;               /* index of code symbols */
+    unsigned min, max;          /* minimum and maximum code lengths */
+    unsigned root;              /* number of index bits for root table */
+    unsigned curr;              /* number of index bits for current table */
+    unsigned drop;              /* code bits to drop for sub-table */
+    int left;                   /* number of prefix codes available */
+    unsigned used;              /* code entries in table used */
+    unsigned huff;              /* Huffman code */
+    unsigned incr;              /* for incrementing code, index */
+    unsigned fill;              /* index for replicating entries */
+    unsigned low;               /* low bits for current root entry */
+    unsigned mask;              /* mask for low root bits */
+    code here;                  /* table entry for duplication */
+    code FAR *next;             /* next available space in table */
+    const unsigned short FAR *base;     /* base value table to use */
+    const unsigned short FAR *extra;    /* extra bits table to use */
+    unsigned match;             /* use base and extra for symbol >= match */
+    unsigned short count[MAXBITS+1];    /* number of codes of each length */
+    unsigned short offs[MAXBITS+1];     /* offsets in table for each length */
+    static const unsigned short lbase[31] = { /* Length codes 257..285 base */
+        3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+        35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
+    static const unsigned short lext[31] = { /* Length codes 257..285 extra */
+        16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18,
+        19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 77, 202};
+    static const unsigned short dbase[32] = { /* Distance codes 0..29 base */
+        1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+        257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+        8193, 12289, 16385, 24577, 0, 0};
+    static const unsigned short dext[32] = { /* Distance codes 0..29 extra */
+        16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22,
+        23, 23, 24, 24, 25, 25, 26, 26, 27, 27,
+        28, 28, 29, 29, 64, 64};
+
+    /*
+       Process a set of code lengths to create a canonical Huffman code.  The
+       code lengths are lens[0..codes-1].  Each length corresponds to the
+       symbols 0..codes-1.  The Huffman code is generated by first sorting the
+       symbols by length from short to long, and retaining the symbol order
+       for codes with equal lengths.  Then the code starts with all zero bits
+       for the first code of the shortest length, and the codes are integer
+       increments for the same length, and zeros are appended as the length
+       increases.  For the deflate format, these bits are stored backwards
+       from their more natural integer increment ordering, and so when the
+       decoding tables are built in the large loop below, the integer codes
+       are incremented backwards.
+
+       This routine assumes, but does not check, that all of the entries in
+       lens[] are in the range 0..MAXBITS.  The caller must assure this.
+       1..MAXBITS is interpreted as that code length.  zero means that that
+       symbol does not occur in this code.
+
+       The codes are sorted by computing a count of codes for each length,
+       creating from that a table of starting indices for each length in the
+       sorted table, and then entering the symbols in order in the sorted
+       table.  The sorted table is work[], with that space being provided by
+       the caller.
+
+       The length counts are used for other purposes as well, i.e. finding
+       the minimum and maximum length codes, determining if there are any
+       codes at all, checking for a valid set of lengths, and looking ahead
+       at length counts to determine sub-table sizes when building the
+       decoding tables.
+     */
+
+    /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */
+    for (len = 0; len <= MAXBITS; len++)
+        count[len] = 0;
+    for (sym = 0; sym < codes; sym++)
+        count[lens[sym]]++;
+
+    /* bound code lengths, force root to be within code lengths */
+    root = *bits;
+    for (max = MAXBITS; max >= 1; max--)
+        if (count[max] != 0) break;
+    if (root > max) root = max;
+    if (max == 0) {                     /* no symbols to code at all */
+        here.op = (unsigned char)64;    /* invalid code marker */
+        here.bits = (unsigned char)1;
+        here.val = (unsigned short)0;
+        *(*table)++ = here;             /* make a table to force an error */
+        *(*table)++ = here;
+        *bits = 1;
+        return 0;     /* no symbols, but wait for decoding to report error */
+    }
+    for (min = 1; min < max; min++)
+        if (count[min] != 0) break;
+    if (root < min) root = min;
+
+    /* check for an over-subscribed or incomplete set of lengths */
+    left = 1;
+    for (len = 1; len <= MAXBITS; len++) {
+        left <<= 1;
+        left -= count[len];
+        if (left < 0) return -1;        /* over-subscribed */
+    }
+    if (left > 0 && (type == CODES || max != 1))
+        return -1;                      /* incomplete set */
+
+    /* generate offsets into symbol table for each length for sorting */
+    offs[1] = 0;
+    for (len = 1; len < MAXBITS; len++)
+        offs[len + 1] = offs[len] + count[len];
+
+    /* sort symbols by length, by symbol order within each length */
+    for (sym = 0; sym < codes; sym++)
+        if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym;
+
+    /*
+       Create and fill in decoding tables.  In this loop, the table being
+       filled is at next and has curr index bits.  The code being used is huff
+       with length len.  That code is converted to an index by dropping drop
+       bits off of the bottom.  For codes where len is less than drop + curr,
+       those top drop + curr - len bits are incremented through all values to
+       fill the table with replicated entries.
+
+       root is the number of index bits for the root table.  When len exceeds
+       root, sub-tables are created pointed to by the root entry with an index
+       of the low root bits of huff.  This is saved in low to check for when a
+       new sub-table should be started.  drop is zero when the root table is
+       being filled, and drop is root when sub-tables are being filled.
+
+       When a new sub-table is needed, it is necessary to look ahead in the
+       code lengths to determine what size sub-table is needed.  The length
+       counts are used for this, and so count[] is decremented as codes are
+       entered in the tables.
+
+       used keeps track of how many table entries have been allocated from the
+       provided *table space.  It is checked for LENS and DIST tables against
+       the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in
+       the initial root table size constants.  See the comments in inftrees.h
+       for more information.
+
+       sym increments through all symbols, and the loop terminates when
+       all codes of length max, i.e. all codes, have been processed.  This
+       routine permits incomplete codes, so another loop after this one fills
+       in the rest of the decoding tables with invalid code markers.
+     */
+
+    /* set up for code type */
+    switch (type) {
+    case CODES:
+        base = extra = work;    /* dummy value--not used */
+        match = 20;
+        break;
+    case LENS:
+        base = lbase;
+        extra = lext;
+        match = 257;
+        break;
+    default:    /* DISTS */
+        base = dbase;
+        extra = dext;
+        match = 0;
+    }
+
+    /* initialize state for loop */
+    huff = 0;                   /* starting code */
+    sym = 0;                    /* starting code symbol */
+    len = min;                  /* starting code length */
+    next = *table;              /* current table to fill in */
+    curr = root;                /* current table index bits */
+    drop = 0;                   /* current bits to drop from code for index */
+    low = (unsigned)(-1);       /* trigger new sub-table when len > root */
+    used = 1U << root;          /* use root table entries */
+    mask = used - 1;            /* mask for comparing low */
+
+    /* check available table space */
+    if ((type == LENS && used > ENOUGH_LENS) ||
+        (type == DISTS && used > ENOUGH_DISTS))
+        return 1;
+
+    /* process all codes and make table entries */
+    for (;;) {
+        /* create table entry */
+        here.bits = (unsigned char)(len - drop);
+        if (work[sym] + 1U < match) {
+            here.op = (unsigned char)0;
+            here.val = work[sym];
+        }
+        else if (work[sym] >= match) {
+            here.op = (unsigned char)(extra[work[sym] - match]);
+            here.val = base[work[sym] - match];
+        }
+        else {
+            here.op = (unsigned char)(32 + 64);         /* end of block */
+            here.val = 0;
+        }
+
+        /* replicate for those indices with low len bits equal to huff */
+        incr = 1U << (len - drop);
+        fill = 1U << curr;
+        min = fill;                 /* save offset to next table */
+        do {
+            fill -= incr;
+            next[(huff >> drop) + fill] = here;
+        } while (fill != 0);
+
+        /* backwards increment the len-bit code huff */
+        incr = 1U << (len - 1);
+        while (huff & incr)
+            incr >>= 1;
+        if (incr != 0) {
+            huff &= incr - 1;
+            huff += incr;
+        }
+        else
+            huff = 0;
+
+        /* go to next symbol, update count, len */
+        sym++;
+        if (--(count[len]) == 0) {
+            if (len == max) break;
+            len = lens[work[sym]];
+        }
+
+        /* create new sub-table if needed */
+        if (len > root && (huff & mask) != low) {
+            /* if first time, transition to sub-tables */
+            if (drop == 0)
+                drop = root;
+
+            /* increment past last table */
+            next += min;            /* here min is 1 << curr */
+
+            /* determine length of next table */
+            curr = len - drop;
+            left = (int)(1 << curr);
+            while (curr + drop < max) {
+                left -= count[curr + drop];
+                if (left <= 0) break;
+                curr++;
+                left <<= 1;
+            }
+
+            /* check for enough space */
+            used += 1U << curr;
+            if ((type == LENS && used > ENOUGH_LENS) ||
+                (type == DISTS && used > ENOUGH_DISTS))
+                return 1;
+
+            /* point entry in root table to sub-table */
+            low = huff & mask;
+            (*table)[low].op = (unsigned char)curr;
+            (*table)[low].bits = (unsigned char)root;
+            (*table)[low].val = (unsigned short)(next - *table);
+        }
+    }
+
+    /* fill in remaining table entry if code is incomplete (guaranteed to have
+       at most one remaining entry, since if the code is incomplete, the
+       maximum code length that was allowed to get this far is one bit) */
+    if (huff != 0) {
+        here.op = (unsigned char)64;            /* invalid code marker */
+        here.bits = (unsigned char)(len - drop);
+        here.val = (unsigned short)0;
+        next[huff] = here;
+    }
+
+    /* set return parameters */
+    *table += used;
+    *bits = root;
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/inftrees.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/inftrees.h
new file mode 100644
index 000000000..baa53a0b1
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/inftrees.h
@@ -0,0 +1,62 @@
+/* inftrees.h -- header to use inftrees.c
+ * Copyright (C) 1995-2005, 2010 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* Structure for decoding tables.  Each entry provides either the
+   information needed to do the operation requested by the code that
+   indexed that table entry, or it provides a pointer to another
+   table that indexes more bits of the code.  op indicates whether
+   the entry is a pointer to another table, a literal, a length or
+   distance, an end-of-block, or an invalid code.  For a table
+   pointer, the low four bits of op is the number of index bits of
+   that table.  For a length or distance, the low four bits of op
+   is the number of extra bits to get after the code.  bits is
+   the number of bits in this code or part of the code to drop off
+   of the bit buffer.  val is the actual byte to output in the case
+   of a literal, the base length or distance, or the offset from
+   the current table to the next table.  Each entry is four bytes. */
+typedef struct {
+    unsigned char op;           /* operation, extra bits, table bits */
+    unsigned char bits;         /* bits in this part of the code */
+    unsigned short val;         /* offset in table or code value */
+} code;
+
+/* op values as set by inflate_table():
+    00000000 - literal
+    0000tttt - table link, tttt != 0 is the number of table index bits
+    0001eeee - length or distance, eeee is the number of extra bits
+    01100000 - end of block
+    01000000 - invalid code
+ */
+
+/* Maximum size of the dynamic table.  The maximum number of code structures is
+   1444, which is the sum of 852 for literal/length codes and 592 for distance
+   codes.  These values were found by exhaustive searches using the program
+   examples/enough.c found in the zlib distribtution.  The arguments to that
+   program are the number of symbols, the initial root table size, and the
+   maximum bit length of a code.  "enough 286 9 15" for literal/length codes
+   returns returns 852, and "enough 30 6 15" for distance codes returns 592.
+   The initial root table size (9 or 6) is found in the fifth argument of the
+   inflate_table() calls in inflate.c and infback.c.  If the root table size is
+   changed, then these maximum sizes would be need to be recalculated and
+   updated. */
+#define ENOUGH_LENS 852
+#define ENOUGH_DISTS 592
+#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS)
+
+/* Type of code to build for inflate_table() */
+typedef enum {
+    CODES,
+    LENS,
+    DISTS
+} codetype;
+
+int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens,
+                             unsigned codes, code FAR * FAR *table,
+                             unsigned FAR *bits, unsigned short FAR *work));
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/make_vms.com b/src/boost/libs/beast/test/extern/zlib-1.2.11/make_vms.com
new file mode 100644
index 000000000..65e9d0cbc
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/make_vms.com
@@ -0,0 +1,867 @@
+$! make libz under VMS written by
+$! Martin P.J. Zinser
+$!
+$! In case of problems with the install you might contact me at
+$! zinser@zinser.no-ip.info(preferred) or
+$! martin.zinser@eurexchange.com (work)
+$!
+$! Make procedure history for Zlib
+$!
+$!------------------------------------------------------------------------------
+$! Version history
+$! 0.01 20060120 First version to receive a number
+$! 0.02 20061008 Adapt to new Makefile.in
+$! 0.03 20091224 Add support for large file check
+$! 0.04 20100110 Add new gzclose, gzlib, gzread, gzwrite
+$! 0.05 20100221 Exchange zlibdefs.h by zconf.h.in
+$! 0.06 20120111 Fix missing amiss_err, update zconf_h.in, fix new exmples
+$!               subdir path, update module search in makefile.in
+$! 0.07 20120115 Triggered by work done by Alexey Chupahin completly redesigned
+$!               shared image creation
+$! 0.08 20120219 Make it work on VAX again, pre-load missing symbols to shared
+$!               image
+$! 0.09 20120305 SMS.  P1 sets builder ("MMK", "MMS", " " (built-in)).
+$!               "" -> automatic, preference: MMK, MMS, built-in.
+$!
+$ on error then goto err_exit
+$!
+$ true  = 1
+$ false = 0
+$ tmpnam = "temp_" + f$getjpi("","pid")
+$ tt = tmpnam + ".txt"
+$ tc = tmpnam + ".c"
+$ th = tmpnam + ".h"
+$ define/nolog tconfig 'th'
+$ its_decc = false
+$ its_vaxc = false
+$ its_gnuc = false
+$ s_case   = False
+$!
+$! Setup variables holding "config" information
+$!
+$ Make    = "''p1'"
+$ name     = "Zlib"
+$ version  = "?.?.?"
+$ v_string = "ZLIB_VERSION"
+$ v_file   = "zlib.h"
+$ ccopt   = "/include = []"
+$ lopts   = ""
+$ dnsrl   = ""
+$ aconf_in_file = "zconf.h.in#zconf.h_in#zconf_h.in"
+$ conf_check_string = ""
+$ linkonly = false
+$ optfile  = name + ".opt"
+$ mapfile  = name + ".map"
+$ libdefs  = ""
+$ vax      = f$getsyi("HW_MODEL").lt.1024
+$ axp      = f$getsyi("HW_MODEL").ge.1024 .and. f$getsyi("HW_MODEL").lt.4096
+$ ia64     = f$getsyi("HW_MODEL").ge.4096
+$!
+$! 2012-03-05 SMS.
+$! Why is this needed?  And if it is needed, why not simply ".not. vax"?
+$!
+$!!! if axp .or. ia64 then  set proc/parse=extended
+$!
+$ whoami = f$parse(f$environment("Procedure"),,,,"NO_CONCEAL")
+$ mydef  = F$parse(whoami,,,"DEVICE")
+$ mydir  = f$parse(whoami,,,"DIRECTORY") - "]["
+$ myproc = f$parse(whoami,,,"Name") + f$parse(whoami,,,"type")
+$!
+$! Check for MMK/MMS
+$!
+$ if (Make .eqs. "")
+$ then
+$   If F$Search ("Sys$System:MMS.EXE") .nes. "" Then Make = "MMS"
+$   If F$Type (MMK) .eqs. "STRING" Then Make = "MMK"
+$ else
+$   Make = f$edit( Make, "trim")
+$ endif
+$!
+$ gosub find_version
+$!
+$  open/write topt tmp.opt
+$  open/write optf 'optfile'
+$!
+$ gosub check_opts
+$!
+$! Look for the compiler used
+$!
+$ gosub check_compiler
+$ close topt
+$ close optf
+$!
+$ if its_decc
+$ then
+$   ccopt = "/prefix=all" + ccopt
+$   if f$trnlnm("SYS") .eqs. ""
+$   then
+$     if axp
+$     then
+$       define sys sys$library:
+$     else
+$       ccopt = "/decc" + ccopt
+$       define sys decc$library_include:
+$     endif
+$   endif
+$!
+$! 2012-03-05 SMS.
+$! Why /NAMES = AS_IS?  Why not simply ".not. vax"?  And why not on VAX?
+$!
+$   if axp .or. ia64
+$   then
+$       ccopt = ccopt + "/name=as_is/opt=(inline=speed)"
+$       s_case = true
+$   endif
+$ endif
+$ if its_vaxc .or. its_gnuc
+$ then
+$    if f$trnlnm("SYS").eqs."" then define sys sys$library:
+$ endif
+$!
+$! Build a fake configure input header
+$!
+$ open/write conf_hin config.hin
+$ write conf_hin "#undef _LARGEFILE64_SOURCE"
+$ close conf_hin
+$!
+$!
+$ i = 0
+$FIND_ACONF:
+$ fname = f$element(i,"#",aconf_in_file)
+$ if fname .eqs. "#" then goto AMISS_ERR
+$ if f$search(fname) .eqs. ""
+$ then
+$   i = i + 1
+$   goto find_aconf
+$ endif
+$ open/read/err=aconf_err aconf_in 'fname'
+$ open/write aconf zconf.h
+$ACONF_LOOP:
+$ read/end_of_file=aconf_exit aconf_in line
+$ work = f$edit(line, "compress,trim")
+$ if f$extract(0,6,work) .nes. "#undef"
+$ then
+$   if f$extract(0,12,work) .nes. "#cmakedefine"
+$   then
+$       write aconf line
+$   endif
+$ else
+$   cdef = f$element(1," ",work)
+$   gosub check_config
+$ endif
+$ goto aconf_loop
+$ACONF_EXIT:
+$ write aconf ""
+$ write aconf "/* VMS specifics added by make_vms.com: */"
+$ write aconf "#define VMS 1"
+$ write aconf "#include <unistd.h>"
+$ write aconf "#include <unixio.h>"
+$ write aconf "#ifdef _LARGEFILE"
+$ write aconf "# define off64_t __off64_t"
+$ write aconf "# define fopen64 fopen"
+$ write aconf "# define fseeko64 fseeko"
+$ write aconf "# define lseek64 lseek"
+$ write aconf "# define ftello64 ftell"
+$ write aconf "#endif"
+$ write aconf "#if !defined( __VAX) && (__CRTL_VER >= 70312000)"
+$ write aconf "# define HAVE_VSNPRINTF"
+$ write aconf "#endif"
+$ close aconf_in
+$ close aconf
+$ if f$search("''th'") .nes. "" then delete 'th';*
+$! Build the thing plain or with mms
+$!
+$ write sys$output "Compiling Zlib sources ..."
+$ if make.eqs.""
+$ then
+$   if (f$search( "example.obj;*") .nes. "") then delete example.obj;*
+$   if (f$search( "minigzip.obj;*") .nes. "") then delete minigzip.obj;*
+$   CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" -
+                adler32.c zlib.h zconf.h
+$   CALL MAKE compress.OBJ "CC ''CCOPT' compress" -
+                compress.c zlib.h zconf.h
+$   CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" -
+                crc32.c zlib.h zconf.h
+$   CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" -
+                deflate.c deflate.h zutil.h zlib.h zconf.h
+$   CALL MAKE gzclose.OBJ "CC ''CCOPT' gzclose" -
+                gzclose.c zutil.h zlib.h zconf.h
+$   CALL MAKE gzlib.OBJ "CC ''CCOPT' gzlib" -
+                gzlib.c zutil.h zlib.h zconf.h
+$   CALL MAKE gzread.OBJ "CC ''CCOPT' gzread" -
+                gzread.c zutil.h zlib.h zconf.h
+$   CALL MAKE gzwrite.OBJ "CC ''CCOPT' gzwrite" -
+                gzwrite.c zutil.h zlib.h zconf.h
+$   CALL MAKE infback.OBJ "CC ''CCOPT' infback" -
+                infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h
+$   CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" -
+                inffast.c zutil.h zlib.h zconf.h inffast.h
+$   CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" -
+                inflate.c zutil.h zlib.h zconf.h infblock.h
+$   CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" -
+                inftrees.c zutil.h zlib.h zconf.h inftrees.h
+$   CALL MAKE trees.OBJ "CC ''CCOPT' trees" -
+                trees.c deflate.h zutil.h zlib.h zconf.h
+$   CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" -
+                uncompr.c zlib.h zconf.h
+$   CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" -
+                zutil.c zutil.h zlib.h zconf.h
+$   write sys$output "Building Zlib ..."
+$   CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ
+$   write sys$output "Building example..."
+$   CALL MAKE example.OBJ "CC ''CCOPT' [.test]example" -
+                [.test]example.c zlib.h zconf.h
+$   call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb
+$   write sys$output "Building minigzip..."
+$   CALL MAKE minigzip.OBJ "CC ''CCOPT' [.test]minigzip" -
+              [.test]minigzip.c zlib.h zconf.h
+$   call make minigzip.exe -
+              "LINK minigzip,libz.olb/lib" -
+              minigzip.obj libz.olb
+$ else
+$   gosub crea_mms
+$   write sys$output "Make ''name' ''version' with ''Make' "
+$   'make'
+$ endif
+$!
+$! Create shareable image
+$!
+$ gosub crea_olist
+$ write sys$output "Creating libzshr.exe"
+$ call map_2_shopt 'mapfile' 'optfile'
+$ LINK_'lopts'/SHARE=libzshr.exe modules.opt/opt,'optfile'/opt
+$ write sys$output "Zlib build completed"
+$ delete/nolog tmp.opt;*
+$ exit
+$AMISS_ERR:
+$ write sys$output "No source for config.hin found."
+$ write sys$output "Tried any of ''aconf_in_file'"
+$ goto err_exit
+$CC_ERR:
+$ write sys$output "C compiler required to build ''name'"
+$ goto err_exit
+$ERR_EXIT:
+$ set message/facil/ident/sever/text
+$ close/nolog optf
+$ close/nolog topt
+$ close/nolog aconf_in
+$ close/nolog aconf
+$ close/nolog out
+$ close/nolog min
+$ close/nolog mod
+$ close/nolog h_in
+$ write sys$output "Exiting..."
+$ exit 2
+$!
+$!
+$MAKE: SUBROUTINE   !SUBROUTINE TO CHECK DEPENDENCIES
+$ V = 'F$Verify(0)
+$! P1 = What we are trying to make
+$! P2 = Command to make it
+$! P3 - P8  What it depends on
+$
+$ If F$Search(P1) .Eqs. "" Then Goto Makeit
+$ Time = F$CvTime(F$File(P1,"RDT"))
+$arg=3
+$Loop:
+$       Argument = P'arg
+$       If Argument .Eqs. "" Then Goto Exit
+$       El=0
+$Loop2:
+$       File = F$Element(El," ",Argument)
+$       If File .Eqs. " " Then Goto Endl
+$       AFile = ""
+$Loop3:
+$       OFile = AFile
+$       AFile = F$Search(File)
+$       If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
+$       If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
+$       Goto Loop3
+$NextEL:
+$       El = El + 1
+$       Goto Loop2
+$EndL:
+$ arg=arg+1
+$ If arg .Le. 8 Then Goto Loop
+$ Goto Exit
+$
+$Makeit:
+$ VV=F$VERIFY(0)
+$ write sys$output P2
+$ 'P2
+$ VV='F$Verify(VV)
+$Exit:
+$ If V Then Set Verify
+$ENDSUBROUTINE
+$!------------------------------------------------------------------------------
+$!
+$! Check command line options and set symbols accordingly
+$!
+$!------------------------------------------------------------------------------
+$! Version history
+$! 0.01 20041206 First version to receive a number
+$! 0.02 20060126 Add new "HELP" target
+$ CHECK_OPTS:
+$ i = 1
+$ OPT_LOOP:
+$ if i .lt. 9
+$ then
+$   cparm = f$edit(p'i',"upcase")
+$!
+$! Check if parameter actually contains something
+$!
+$   if f$edit(cparm,"trim") .nes. ""
+$   then
+$     if cparm .eqs. "DEBUG"
+$     then
+$       ccopt = ccopt + "/noopt/deb"
+$       lopts = lopts + "/deb"
+$     endif
+$     if f$locate("CCOPT=",cparm) .lt. f$length(cparm)
+$     then
+$       start = f$locate("=",cparm) + 1
+$       len   = f$length(cparm) - start
+$       ccopt = ccopt + f$extract(start,len,cparm)
+$       if f$locate("AS_IS",f$edit(ccopt,"UPCASE")) .lt. f$length(ccopt) -
+          then s_case = true
+$     endif
+$     if cparm .eqs. "LINK" then linkonly = true
+$     if f$locate("LOPTS=",cparm) .lt. f$length(cparm)
+$     then
+$       start = f$locate("=",cparm) + 1
+$       len   = f$length(cparm) - start
+$       lopts = lopts + f$extract(start,len,cparm)
+$     endif
+$     if f$locate("CC=",cparm) .lt. f$length(cparm)
+$     then
+$       start  = f$locate("=",cparm) + 1
+$       len    = f$length(cparm) - start
+$       cc_com = f$extract(start,len,cparm)
+        if (cc_com .nes. "DECC") .and. -
+           (cc_com .nes. "VAXC") .and. -
+           (cc_com .nes. "GNUC")
+$       then
+$         write sys$output "Unsupported compiler choice ''cc_com' ignored"
+$         write sys$output "Use DECC, VAXC, or GNUC instead"
+$       else
+$         if cc_com .eqs. "DECC" then its_decc = true
+$         if cc_com .eqs. "VAXC" then its_vaxc = true
+$         if cc_com .eqs. "GNUC" then its_gnuc = true
+$       endif
+$     endif
+$     if f$locate("MAKE=",cparm) .lt. f$length(cparm)
+$     then
+$       start  = f$locate("=",cparm) + 1
+$       len    = f$length(cparm) - start
+$       mmks = f$extract(start,len,cparm)
+$       if (mmks .eqs. "MMK") .or. (mmks .eqs. "MMS")
+$       then
+$         make = mmks
+$       else
+$         write sys$output "Unsupported make choice ''mmks' ignored"
+$         write sys$output "Use MMK or MMS instead"
+$       endif
+$     endif
+$     if cparm .eqs. "HELP" then gosub bhelp
+$   endif
+$   i = i + 1
+$   goto opt_loop
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Look for the compiler used
+$!
+$! Version history
+$! 0.01 20040223 First version to receive a number
+$! 0.02 20040229 Save/set value of decc$no_rooted_search_lists
+$! 0.03 20060202 Extend handling of GNU C
+$! 0.04 20090402 Compaq -> hp
+$CHECK_COMPILER:
+$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc))
+$ then
+$   its_decc = (f$search("SYS$SYSTEM:DECC$COMPILER.EXE") .nes. "")
+$   its_vaxc = .not. its_decc .and. (F$Search("SYS$System:VAXC.Exe") .nes. "")
+$   its_gnuc = .not. (its_decc .or. its_vaxc) .and. (f$trnlnm("gnu_cc") .nes. "")
+$ endif
+$!
+$! Exit if no compiler available
+$!
+$ if (.not. (its_decc .or. its_vaxc .or. its_gnuc))
+$ then goto CC_ERR
+$ else
+$   if its_decc
+$   then
+$     write sys$output "CC compiler check ... hp C"
+$     if f$trnlnm("decc$no_rooted_search_lists") .nes. ""
+$     then
+$       dnrsl = f$trnlnm("decc$no_rooted_search_lists")
+$     endif
+$     define/nolog decc$no_rooted_search_lists 1
+$   else
+$     if its_vaxc then write sys$output "CC compiler check ... VAX C"
+$     if its_gnuc
+$     then
+$         write sys$output "CC compiler check ... GNU C"
+$         if f$trnlnm(topt) then write topt "gnu_cc:[000000]gcclib.olb/lib"
+$         if f$trnlnm(optf) then write optf "gnu_cc:[000000]gcclib.olb/lib"
+$         cc = "gcc"
+$     endif
+$     if f$trnlnm(topt) then write topt "sys$share:vaxcrtl.exe/share"
+$     if f$trnlnm(optf) then write optf "sys$share:vaxcrtl.exe/share"
+$   endif
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! If MMS/MMK are available dump out the descrip.mms if required
+$!
+$CREA_MMS:
+$ write sys$output "Creating descrip.mms..."
+$ create descrip.mms
+$ open/append out descrip.mms
+$ copy sys$input: out
+$ deck
+# descrip.mms: MMS description file for building zlib on VMS
+# written by Martin P.J. Zinser
+# <zinser@zinser.no-ip.info or martin.zinser@eurexchange.com>
+
+OBJS = adler32.obj, compress.obj, crc32.obj, gzclose.obj, gzlib.obj\
+       gzread.obj, gzwrite.obj, uncompr.obj, infback.obj\
+       deflate.obj, trees.obj, zutil.obj, inflate.obj, \
+       inftrees.obj, inffast.obj
+
+$ eod
+$ write out "CFLAGS=", ccopt
+$ write out "LOPTS=", lopts
+$ write out "all : example.exe minigzip.exe libz.olb"
+$ copy sys$input: out
+$ deck
+        @ write sys$output " Example applications available"
+
+libz.olb : libz.olb($(OBJS))
+	@ write sys$output " libz available"
+
+example.exe : example.obj libz.olb
+              link $(LOPTS) example,libz.olb/lib
+
+minigzip.exe : minigzip.obj libz.olb
+              link $(LOPTS) minigzip,libz.olb/lib
+
+clean :
+	delete *.obj;*,libz.olb;*,*.opt;*,*.exe;*
+
+
+# Other dependencies.
+adler32.obj  : adler32.c zutil.h zlib.h zconf.h
+compress.obj : compress.c zlib.h zconf.h
+crc32.obj    : crc32.c zutil.h zlib.h zconf.h
+deflate.obj  : deflate.c deflate.h zutil.h zlib.h zconf.h
+example.obj  : [.test]example.c zlib.h zconf.h
+gzclose.obj  : gzclose.c zutil.h zlib.h zconf.h
+gzlib.obj    : gzlib.c zutil.h zlib.h zconf.h
+gzread.obj   : gzread.c zutil.h zlib.h zconf.h
+gzwrite.obj  : gzwrite.c zutil.h zlib.h zconf.h
+inffast.obj  : inffast.c zutil.h zlib.h zconf.h inftrees.h inffast.h
+inflate.obj  : inflate.c zutil.h zlib.h zconf.h
+inftrees.obj : inftrees.c zutil.h zlib.h zconf.h inftrees.h
+minigzip.obj : [.test]minigzip.c zlib.h zconf.h
+trees.obj    : trees.c deflate.h zutil.h zlib.h zconf.h
+uncompr.obj  : uncompr.c zlib.h zconf.h
+zutil.obj    : zutil.c zutil.h zlib.h zconf.h
+infback.obj  : infback.c zutil.h inftrees.h inflate.h inffast.h inffixed.h
+$ eod
+$ close out
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Read list of core library sources from makefile.in and create options
+$! needed to build shareable image
+$!
+$CREA_OLIST:
+$ open/read min makefile.in
+$ open/write mod modules.opt
+$ src_check_list = "OBJZ =#OBJG ="
+$MRLOOP:
+$ read/end=mrdone min rec
+$ i = 0
+$SRC_CHECK_LOOP:
+$ src_check = f$element(i, "#", src_check_list)
+$ i = i+1
+$ if src_check .eqs. "#" then goto mrloop
+$ if (f$extract(0,6,rec) .nes. src_check) then goto src_check_loop
+$ rec = rec - src_check
+$ gosub extra_filnam
+$ if (f$element(1,"\",rec) .eqs. "\") then goto mrloop
+$MRSLOOP:
+$ read/end=mrdone min rec
+$ gosub extra_filnam
+$ if (f$element(1,"\",rec) .nes. "\") then goto mrsloop
+$MRDONE:
+$ close min
+$ close mod
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Take record extracted in crea_olist and split it into single filenames
+$!
+$EXTRA_FILNAM:
+$ myrec = f$edit(rec - "\", "trim,compress")
+$ i = 0
+$FELOOP:
+$ srcfil = f$element(i," ", myrec)
+$ if (srcfil .nes. " ")
+$ then
+$   write mod f$parse(srcfil,,,"NAME"), ".obj"
+$   i = i + 1
+$   goto feloop
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Find current Zlib version number
+$!
+$FIND_VERSION:
+$ open/read h_in 'v_file'
+$hloop:
+$ read/end=hdone h_in rec
+$ rec = f$edit(rec,"TRIM")
+$ if (f$extract(0,1,rec) .nes. "#") then goto hloop
+$ rec = f$edit(rec - "#", "TRIM")
+$ if f$element(0," ",rec) .nes. "define" then goto hloop
+$ if f$element(1," ",rec) .eqs. v_string
+$ then
+$   version = 'f$element(2," ",rec)'
+$   goto hdone
+$ endif
+$ goto hloop
+$hdone:
+$ close h_in
+$ return
+$!------------------------------------------------------------------------------
+$!
+$CHECK_CONFIG:
+$!
+$ in_ldef = f$locate(cdef,libdefs)
+$ if (in_ldef .lt. f$length(libdefs))
+$ then
+$   write aconf "#define ''cdef' 1"
+$   libdefs = f$extract(0,in_ldef,libdefs) + -
+              f$extract(in_ldef + f$length(cdef) + 1, -
+                        f$length(libdefs) - in_ldef - f$length(cdef) - 1, -
+                        libdefs)
+$ else
+$   if (f$type('cdef') .eqs. "INTEGER")
+$   then
+$     write aconf "#define ''cdef' ", 'cdef'
+$   else
+$     if (f$type('cdef') .eqs. "STRING")
+$     then
+$       write aconf "#define ''cdef' ", """", '''cdef'', """"
+$     else
+$       gosub check_cc_def
+$     endif
+$   endif
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Check if this is a define relating to the properties of the C/C++
+$! compiler
+$!
+$ CHECK_CC_DEF:
+$ if (cdef .eqs. "_LARGEFILE64_SOURCE")
+$ then
+$   copy sys$input: 'tc'
+$   deck
+#include "tconfig"
+#define _LARGEFILE
+#include <stdio.h>
+
+int main(){
+FILE *fp;
+  fp = fopen("temp.txt","r");
+  fseeko(fp,1,SEEK_SET);
+  fclose(fp);
+}
+
+$   eod
+$   test_inv = false
+$   comm_h = false
+$   gosub cc_prop_check
+$   return
+$ endif
+$ write aconf "/* ", line, " */"
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Check for properties of C/C++ compiler
+$!
+$! Version history
+$! 0.01 20031020 First version to receive a number
+$! 0.02 20031022 Added logic for defines with value
+$! 0.03 20040309 Make sure local config file gets not deleted
+$! 0.04 20041230 Also write include for configure run
+$! 0.05 20050103 Add processing of "comment defines"
+$CC_PROP_CHECK:
+$ cc_prop = true
+$ is_need = false
+$ is_need = (f$extract(0,4,cdef) .eqs. "NEED") .or. (test_inv .eq. true)
+$ if f$search(th) .eqs. "" then create 'th'
+$ set message/nofac/noident/nosever/notext
+$ on error then continue
+$ cc 'tmpnam'
+$ if .not. ($status)  then cc_prop = false
+$ on error then continue
+$! The headers might lie about the capabilities of the RTL
+$ link 'tmpnam',tmp.opt/opt
+$ if .not. ($status)  then cc_prop = false
+$ set message/fac/ident/sever/text
+$ on error then goto err_exit
+$ delete/nolog 'tmpnam'.*;*/exclude='th'
+$ if (cc_prop .and. .not. is_need) .or. -
+     (.not. cc_prop .and. is_need)
+$ then
+$   write sys$output "Checking for ''cdef'... yes"
+$   if f$type('cdef_val'_yes) .nes. ""
+$   then
+$     if f$type('cdef_val'_yes) .eqs. "INTEGER" -
+         then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_yes)
+$     if f$type('cdef_val'_yes) .eqs. "STRING" -
+         then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_yes)
+$   else
+$     call write_config f$fao("#define !AS 1",cdef)
+$   endif
+$   if (cdef .eqs. "HAVE_FSEEKO") .or. (cdef .eqs. "_LARGE_FILES") .or. -
+       (cdef .eqs. "_LARGEFILE64_SOURCE") then -
+      call write_config f$string("#define _LARGEFILE 1")
+$ else
+$   write sys$output "Checking for ''cdef'... no"
+$   if (comm_h)
+$   then
+      call write_config f$fao("/* !AS */",line)
+$   else
+$     if f$type('cdef_val'_no) .nes. ""
+$     then
+$       if f$type('cdef_val'_no) .eqs. "INTEGER" -
+           then call write_config f$fao("#define !AS !UL",cdef,'cdef_val'_no)
+$       if f$type('cdef_val'_no) .eqs. "STRING" -
+           then call write_config f$fao("#define !AS !AS",cdef,'cdef_val'_no)
+$     else
+$       call write_config f$fao("#undef !AS",cdef)
+$     endif
+$   endif
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Check for properties of C/C++ compiler with multiple result values
+$!
+$! Version history
+$! 0.01 20040127 First version
+$! 0.02 20050103 Reconcile changes from cc_prop up to version 0.05
+$CC_MPROP_CHECK:
+$ cc_prop = true
+$ i    = 1
+$ idel = 1
+$ MT_LOOP:
+$ if f$type(result_'i') .eqs. "STRING"
+$ then
+$   set message/nofac/noident/nosever/notext
+$   on error then continue
+$   cc 'tmpnam'_'i'
+$   if .not. ($status)  then cc_prop = false
+$   on error then continue
+$! The headers might lie about the capabilities of the RTL
+$   link 'tmpnam'_'i',tmp.opt/opt
+$   if .not. ($status)  then cc_prop = false
+$   set message/fac/ident/sever/text
+$   on error then goto err_exit
+$   delete/nolog 'tmpnam'_'i'.*;*
+$   if (cc_prop)
+$   then
+$     write sys$output "Checking for ''cdef'... ", mdef_'i'
+$     if f$type(mdef_'i') .eqs. "INTEGER" -
+         then call write_config f$fao("#define !AS !UL",cdef,mdef_'i')
+$     if f$type('cdef_val'_yes) .eqs. "STRING" -
+         then call write_config f$fao("#define !AS !AS",cdef,mdef_'i')
+$     goto msym_clean
+$   else
+$     i = i + 1
+$     goto mt_loop
+$   endif
+$ endif
+$ write sys$output "Checking for ''cdef'... no"
+$ call write_config f$fao("#undef !AS",cdef)
+$ MSYM_CLEAN:
+$ if (idel .le. msym_max)
+$ then
+$   delete/sym mdef_'idel'
+$   idel = idel + 1
+$   goto msym_clean
+$ endif
+$ return
+$!------------------------------------------------------------------------------
+$!
+$! Write configuration to both permanent and temporary config file
+$!
+$! Version history
+$! 0.01 20031029 First version to receive a number
+$!
+$WRITE_CONFIG: SUBROUTINE
+$  write aconf 'p1'
+$  open/append confh 'th'
+$  write confh 'p1'
+$  close confh
+$ENDSUBROUTINE
+$!------------------------------------------------------------------------------
+$!
+$! Analyze the project map file and create the symbol vector for a shareable
+$! image from it
+$!
+$! Version history
+$! 0.01 20120128 First version
+$! 0.02 20120226 Add pre-load logic
+$!
+$ MAP_2_SHOPT: Subroutine
+$!
+$ SAY := "WRITE_ SYS$OUTPUT"
+$!
+$ IF F$SEARCH("''P1'") .EQS. ""
+$ THEN
+$    SAY "MAP_2_SHOPT-E-NOSUCHFILE:  Error, inputfile ''p1' not available"
+$    goto exit_m2s
+$ ENDIF
+$ IF "''P2'" .EQS. ""
+$ THEN
+$    SAY "MAP_2_SHOPT:  Error, no output file provided"
+$    goto exit_m2s
+$ ENDIF
+$!
+$ module1 = "deflate#deflateEnd#deflateInit_#deflateParams#deflateSetDictionary"
+$ module2 = "gzclose#gzerror#gzgetc#gzgets#gzopen#gzprintf#gzputc#gzputs#gzread"
+$ module3 = "gzseek#gztell#inflate#inflateEnd#inflateInit_#inflateSetDictionary"
+$ module4 = "inflateSync#uncompress#zlibVersion#compress"
+$ open/read map 'p1
+$ if axp .or. ia64
+$ then
+$     open/write aopt a.opt
+$     open/write bopt b.opt
+$     write aopt " CASE_SENSITIVE=YES"
+$     write bopt "SYMBOL_VECTOR= (-"
+$     mod_sym_num = 1
+$ MOD_SYM_LOOP:
+$     if f$type(module'mod_sym_num') .nes. ""
+$     then
+$         mod_in = 0
+$ MOD_SYM_IN:
+$         shared_proc = f$element(mod_in, "#", module'mod_sym_num')
+$         if shared_proc .nes. "#"
+$         then
+$             write aopt f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)",-
+        		       f$edit(shared_proc,"upcase"),shared_proc)
+$             write bopt f$fao("!AS=PROCEDURE,-",shared_proc)
+$             mod_in = mod_in + 1
+$             goto mod_sym_in
+$         endif
+$         mod_sym_num = mod_sym_num + 1
+$         goto mod_sym_loop
+$     endif
+$MAP_LOOP:
+$     read/end=map_end map line
+$     if (f$locate("{",line).lt. f$length(line)) .or. -
+         (f$locate("global:", line) .lt. f$length(line))
+$     then
+$         proc = true
+$         goto map_loop
+$     endif
+$     if f$locate("}",line).lt. f$length(line) then proc = false
+$     if f$locate("local:", line) .lt. f$length(line) then proc = false
+$     if proc
+$     then
+$         shared_proc = f$edit(line,"collapse")
+$         chop_semi = f$locate(";", shared_proc)
+$         if chop_semi .lt. f$length(shared_proc) then -
+              shared_proc = f$extract(0, chop_semi, shared_proc)
+$         write aopt f$fao(" symbol_vector=(!AS/!AS=PROCEDURE)",-
+        			 f$edit(shared_proc,"upcase"),shared_proc)
+$         write bopt f$fao("!AS=PROCEDURE,-",shared_proc)
+$     endif
+$     goto map_loop
+$MAP_END:
+$     close/nolog aopt
+$     close/nolog bopt
+$     open/append libopt 'p2'
+$     open/read aopt a.opt
+$     open/read bopt b.opt
+$ALOOP:
+$     read/end=aloop_end aopt line
+$     write libopt line
+$     goto aloop
+$ALOOP_END:
+$     close/nolog aopt
+$     sv = ""
+$BLOOP:
+$     read/end=bloop_end bopt svn
+$     if (svn.nes."")
+$     then
+$        if (sv.nes."") then write libopt sv
+$        sv = svn
+$     endif
+$     goto bloop
+$BLOOP_END:
+$     write libopt f$extract(0,f$length(sv)-2,sv), "-"
+$     write libopt ")"
+$     close/nolog bopt
+$     delete/nolog/noconf a.opt;*,b.opt;*
+$ else
+$     if vax
+$     then
+$     open/append libopt 'p2'
+$     mod_sym_num = 1
+$ VMOD_SYM_LOOP:
+$     if f$type(module'mod_sym_num') .nes. ""
+$     then
+$         mod_in = 0
+$ VMOD_SYM_IN:
+$         shared_proc = f$element(mod_in, "#", module'mod_sym_num')
+$         if shared_proc .nes. "#"
+$         then
+$     	      write libopt f$fao("UNIVERSAL=!AS",-
+      	  			     f$edit(shared_proc,"upcase"))
+$             mod_in = mod_in + 1
+$             goto vmod_sym_in
+$         endif
+$         mod_sym_num = mod_sym_num + 1
+$         goto vmod_sym_loop
+$     endif
+$VMAP_LOOP:
+$     	  read/end=vmap_end map line
+$     	  if (f$locate("{",line).lt. f$length(line)) .or. -
+   	      (f$locate("global:", line) .lt. f$length(line))
+$     	  then
+$     	      proc = true
+$     	      goto vmap_loop
+$     	  endif
+$     	  if f$locate("}",line).lt. f$length(line) then proc = false
+$     	  if f$locate("local:", line) .lt. f$length(line) then proc = false
+$     	  if proc
+$     	  then
+$     	      shared_proc = f$edit(line,"collapse")
+$     	      chop_semi = f$locate(";", shared_proc)
+$     	      if chop_semi .lt. f$length(shared_proc) then -
+      	  	  shared_proc = f$extract(0, chop_semi, shared_proc)
+$     	      write libopt f$fao("UNIVERSAL=!AS",-
+      	  			     f$edit(shared_proc,"upcase"))
+$     	  endif
+$     	  goto vmap_loop
+$VMAP_END:
+$     else
+$         write sys$output "Unknown Architecture (Not VAX, AXP, or IA64)"
+$         write sys$output "No options file created"
+$     endif
+$ endif
+$ EXIT_M2S:
+$ close/nolog map
+$ close/nolog libopt
+$ endsubroutine
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.bor b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.bor
new file mode 100644
index 000000000..3d12a2c25
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.bor
@@ -0,0 +1,115 @@
+# Makefile for zlib
+# Borland C++
+# Last updated: 15-Mar-2003
+
+# To use, do "make -fmakefile.bor"
+# To compile in small model, set below: MODEL=s
+
+# WARNING: the small model is supported but only for small values of
+# MAX_WBITS and MAX_MEM_LEVEL. For example:
+#    -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3
+# If you wish to reduce the memory requirements (default 256K for big
+# objects plus a few K), you can add to the LOC macro below:
+#   -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
+# See zconf.h for details about the memory requirements.
+
+# ------------ Turbo C++, Borland C++ ------------
+
+#    Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
+#    should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
+#    to the declaration of LOC here:
+LOC = $(LOCAL_ZLIB)
+
+# type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
+CPU_TYP = 0
+
+# memory model: one of s, m, c, l (small, medium, compact, large)
+MODEL=l
+
+# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version
+CC=bcc
+LD=bcc
+AR=tlib
+
+# compiler flags
+# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0
+CFLAGS=-O2 -Z -m$(MODEL) $(LOC)
+
+LDFLAGS=-m$(MODEL) -f-
+
+
+# variables
+ZLIB_LIB = zlib_$(MODEL).lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+	-del zlib_*.bak
+	-del foo.gz
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.dj2 b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.dj2
new file mode 100644
index 000000000..59d2037d6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.dj2
@@ -0,0 +1,104 @@
+# Makefile for zlib.  Modified for djgpp v2.0 by F. J. Donahoe, 3/15/96.
+# Copyright (C) 1995-1998 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type:
+#
+#   make -fmakefile.dj2;  make test -fmakefile.dj2
+#
+# To install libz.a, zconf.h and zlib.h in the djgpp directories, type:
+#
+#    make install -fmakefile.dj2
+#
+# after first defining LIBRARY_PATH and INCLUDE_PATH in djgpp.env as
+# in the sample below if the pattern of the DJGPP distribution is to
+# be followed.  Remember that, while <sp>'es around <=> are ignored in
+# makefiles, they are *not* in batch files or in djgpp.env.
+# - - - - -
+# [make]
+# INCLUDE_PATH=%\>;INCLUDE_PATH%%\DJDIR%\include
+# LIBRARY_PATH=%\>;LIBRARY_PATH%%\DJDIR%\lib
+# BUTT=-m486
+# - - - - -
+# Alternately, these variables may be defined below, overriding the values
+# in djgpp.env, as
+# INCLUDE_PATH=c:\usr\include
+# LIBRARY_PATH=c:\usr\lib
+
+CC=gcc
+
+#CFLAGS=-MMD -O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-MMD -g -DZLIB_DEBUG
+CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+             -Wstrict-prototypes -Wmissing-prototypes
+
+# If cp.exe is available, replace "copy /Y" with "cp -fp" .
+CP=copy /Y
+# If gnu install.exe is available, replace $(CP) with ginstall.
+INSTALL=$(CP)
+# The default value of RM is "rm -f."  If "rm.exe" is found, comment out:
+RM=del
+LDLIBS=-L. -lz
+LD=$(CC) -s -o
+LDSHARED=$(CC)
+
+INCL=zlib.h zconf.h
+LIBS=libz.a
+
+AR=ar rcs
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+OBJA =
+# to use the asm code: make OBJA=match.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example.exe minigzip.exe
+
+check: test
+test: all
+	./example
+	echo hello world | .\minigzip | .\minigzip -d
+
+%.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+libz.a: $(OBJS) $(OBJA)
+	$(AR) $@ $(OBJS) $(OBJA)
+
+%.exe : %.o $(LIBS)
+	$(LD) $@ $< $(LDLIBS)
+
+# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env .
+
+.PHONY : uninstall clean
+
+install: $(INCL) $(LIBS)
+	-@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH)
+	-@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH)
+	$(INSTALL) zlib.h $(INCLUDE_PATH)
+	$(INSTALL) zconf.h $(INCLUDE_PATH)
+	$(INSTALL) libz.a $(LIBRARY_PATH)
+
+uninstall:
+	$(RM) $(INCLUDE_PATH)\zlib.h
+	$(RM) $(INCLUDE_PATH)\zconf.h
+	$(RM) $(LIBRARY_PATH)\libz.a
+
+clean:
+	$(RM) *.d
+	$(RM) *.o
+	$(RM) *.exe
+	$(RM) libz.a
+	$(RM) foo.gz
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.emx b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.emx
new file mode 100644
index 000000000..e30f67bed
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.emx
@@ -0,0 +1,69 @@
+# Makefile for zlib.  Modified for emx 0.9c by Chr. Spieler, 6/17/98.
+# Copyright (C) 1995-1998 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type:
+#
+#   make -fmakefile.emx;  make test -fmakefile.emx
+#
+
+CC=gcc
+
+#CFLAGS=-MMD -O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-MMD -g -DZLIB_DEBUG
+CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+             -Wstrict-prototypes -Wmissing-prototypes
+
+# If cp.exe is available, replace "copy /Y" with "cp -fp" .
+CP=copy /Y
+# If gnu install.exe is available, replace $(CP) with ginstall.
+INSTALL=$(CP)
+# The default value of RM is "rm -f."  If "rm.exe" is found, comment out:
+RM=del
+LDLIBS=-L. -lzlib
+LD=$(CC) -s -o
+LDSHARED=$(CC)
+
+INCL=zlib.h zconf.h
+LIBS=zlib.a
+
+AR=ar rcs
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o gzclose.o gzlib.o gzread.o gzwrite.o \
+       uncompr.o deflate.o trees.o zutil.o inflate.o infback.o inftrees.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example.exe minigzip.exe
+
+test: all
+	./example
+	echo hello world | .\minigzip | .\minigzip -d
+
+%.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+zlib.a: $(OBJS)
+	$(AR) $@ $(OBJS)
+
+%.exe : %.o $(LIBS)
+	$(LD) $@ $< $(LDLIBS)
+
+
+.PHONY : clean
+
+clean:
+	$(RM) *.d
+	$(RM) *.o
+	$(RM) *.exe
+	$(RM) zlib.a
+	$(RM) foo.gz
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.msc b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.msc
new file mode 100644
index 000000000..ae8378615
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.msc
@@ -0,0 +1,112 @@
+# Makefile for zlib
+# Microsoft C 5.1 or later
+# Last updated: 19-Mar-2003
+
+# To use, do "make makefile.msc"
+# To compile in small model, set below: MODEL=S
+
+# If you wish to reduce the memory requirements (default 256K for big
+# objects plus a few K), you can add to the LOC macro below:
+#   -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
+# See zconf.h for details about the memory requirements.
+
+# ------------- Microsoft C 5.1 and later -------------
+
+#    Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7)
+#    should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added
+#    to the declaration of LOC here:
+LOC = $(LOCAL_ZLIB)
+
+# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc.
+CPU_TYP = 0
+
+# Memory model: one of S, M, C, L (small, medium, compact, large)
+MODEL=L
+
+CC=cl
+CFLAGS=-nologo -A$(MODEL) -G$(CPU_TYP) -W3 -Oait -Gs $(LOC)
+#-Ox generates bad code with MSC 5.1
+LIB_CFLAGS=-Zl $(CFLAGS)
+
+LD=link
+LDFLAGS=/noi/e/st:0x1500/noe/farcall/packcode
+# "/farcall/packcode" are only useful for `large code' memory models
+# but should be a "no-op" for small code models.
+
+
+# variables
+ZLIB_LIB = zlib_$(MODEL).lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+
+
+# targets
+all:  $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(LIB_CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+	$(CC) -c $(CFLAGS) $*.c
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+	$(CC) -c $(CFLAGS) $*.c
+
+
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	if exist $(ZLIB_LIB) del $(ZLIB_LIB)
+	lib $(ZLIB_LIB) $(OBJ1);
+	lib $(ZLIB_LIB) $(OBJ2);
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj,,,$(ZLIB_LIB);
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj,,,$(ZLIB_LIB);
+
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+	-del *.map
+	-del zlib_*.bak
+	-del foo.gz
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.tc b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.tc
new file mode 100644
index 000000000..5aec82a9d
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/msdos/Makefile.tc
@@ -0,0 +1,100 @@
+# Makefile for zlib
+# Turbo C 2.01, Turbo C++ 1.01
+# Last updated: 15-Mar-2003
+
+# To use, do "make -fmakefile.tc"
+# To compile in small model, set below: MODEL=s
+
+# WARNING: the small model is supported but only for small values of
+# MAX_WBITS and MAX_MEM_LEVEL. For example:
+#    -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
+# If you wish to reduce the memory requirements (default 256K for big
+# objects plus a few K), you can add to CFLAGS below:
+#   -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14
+# See zconf.h for details about the memory requirements.
+
+# ------------ Turbo C 2.01, Turbo C++ 1.01 ------------
+MODEL=l
+CC=tcc
+LD=tcc
+AR=tlib
+# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3
+CFLAGS=-O2 -G -Z -m$(MODEL)
+LDFLAGS=-m$(MODEL) -f-
+
+
+# variables
+ZLIB_LIB = zlib_$(MODEL).lib
+
+OBJ1 = adler32.obj compress.obj crc32.obj deflate.obj gzclose.obj gzlib.obj gzread.obj
+OBJ2 = gzwrite.obj infback.obj inffast.obj inflate.obj inftrees.obj trees.obj uncompr.obj zutil.obj
+OBJP1 = +adler32.obj+compress.obj+crc32.obj+deflate.obj+gzclose.obj+gzlib.obj+gzread.obj
+OBJP2 = +gzwrite.obj+infback.obj+inffast.obj+inflate.obj+inftrees.obj+trees.obj+uncompr.obj+zutil.obj
+
+
+# targets
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+.c.obj:
+	$(CC) -c $(CFLAGS) $*.c
+
+adler32.obj: adler32.c zlib.h zconf.h
+
+compress.obj: compress.c zlib.h zconf.h
+
+crc32.obj: crc32.c zlib.h zconf.h crc32.h
+
+deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h
+
+gzclose.obj: gzclose.c zlib.h zconf.h gzguts.h
+
+gzlib.obj: gzlib.c zlib.h zconf.h gzguts.h
+
+gzread.obj: gzread.c zlib.h zconf.h gzguts.h
+
+gzwrite.obj: gzwrite.c zlib.h zconf.h gzguts.h
+
+infback.obj: infback.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h
+
+inflate.obj: inflate.c zutil.h zlib.h zconf.h inftrees.h inflate.h \
+ inffast.h inffixed.h
+
+inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h
+
+trees.obj: trees.c zutil.h zlib.h zconf.h deflate.h trees.h
+
+uncompr.obj: uncompr.c zlib.h zconf.h
+
+zutil.obj: zutil.c zutil.h zlib.h zconf.h
+
+example.obj: test/example.c zlib.h zconf.h
+
+minigzip.obj: test/minigzip.c zlib.h zconf.h
+
+
+# the command line is cut to fit in the MS-DOS 128 byte limit:
+$(ZLIB_LIB): $(OBJ1) $(OBJ2)
+	-del $(ZLIB_LIB)
+	$(AR) $(ZLIB_LIB) $(OBJP1)
+	$(AR) $(ZLIB_LIB) $(OBJP2)
+
+example.exe: example.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) example.obj $(ZLIB_LIB)
+
+minigzip.exe: minigzip.obj $(ZLIB_LIB)
+	$(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB)
+
+test: example.exe minigzip.exe
+	example
+	echo hello world | minigzip | minigzip -d
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+	-del zlib_*.bak
+	-del foo.gz
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/nintendods/Makefile b/src/boost/libs/beast/test/extern/zlib-1.2.11/nintendods/Makefile
new file mode 100644
index 000000000..21337d01a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/nintendods/Makefile
@@ -0,0 +1,126 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+include $(DEVKITARM)/ds_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+#---------------------------------------------------------------------------------
+TARGET		:=	$(shell basename $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	../../
+DATA		:=	data
+INCLUDES	:=	include
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-mthumb -mthumb-interwork
+
+CFLAGS	:=	-Wall -O2\
+		-march=armv5te -mtune=arm946e-s \
+		-fomit-frame-pointer -ffast-math \
+		$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -DARM9
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions
+
+ASFLAGS	:=	$(ARCH) -march=armv5te -mtune=arm946e-s
+LDFLAGS	=	-specs=ds_arm9.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:=	$(LIBNDS)
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT	:=	$(CURDIR)/lib/libz.a
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+
+.PHONY: $(BUILD) clean all
+
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+	@[ -d $@ ] || mkdir -p include
+	@cp ../../*.h include
+
+lib:
+	@[ -d $@ ] || mkdir -p $@
+	
+$(BUILD): lib
+	@[ -d $@ ] || mkdir -p $@
+	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) lib
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(OUTPUT)	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/nintendods/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/nintendods/README
new file mode 100644
index 000000000..ba7a37dbe
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/nintendods/README
@@ -0,0 +1,5 @@
+This Makefile requires devkitARM (http://www.devkitpro.org/category/devkitarm/) and works inside "contrib/nds". It is based on a devkitARM template.
+
+Eduardo Costa <eduardo.m.costa@gmail.com>
+January 3, 2009
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/Makefile.emx b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/Makefile.emx
new file mode 100644
index 000000000..612b03791
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/Makefile.emx
@@ -0,0 +1,69 @@
+# Makefile for zlib.  Modified for emx/rsxnt by Chr. Spieler, 6/16/98.
+# Copyright (C) 1995-1998 Jean-loup Gailly.
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile, or to compile and test, type:
+#
+#   make -fmakefile.emx;  make test -fmakefile.emx
+#
+
+CC=gcc -Zwin32
+
+#CFLAGS=-MMD -O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-MMD -g -DZLIB_DEBUG
+CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+             -Wstrict-prototypes -Wmissing-prototypes
+
+# If cp.exe is available, replace "copy /Y" with "cp -fp" .
+CP=copy /Y
+# If gnu install.exe is available, replace $(CP) with ginstall.
+INSTALL=$(CP)
+# The default value of RM is "rm -f."  If "rm.exe" is found, comment out:
+RM=del
+LDLIBS=-L. -lzlib
+LD=$(CC) -s -o
+LDSHARED=$(CC)
+
+INCL=zlib.h zconf.h
+LIBS=zlib.a
+
+AR=ar rcs
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o deflate.o gzclose.o gzlib.o gzread.o \
+       gzwrite.o infback.o inffast.o inflate.o inftrees.o trees.o uncompr.o zutil.o
+
+TEST_OBJS = example.o minigzip.o
+
+all: example.exe minigzip.exe
+
+test: all
+	./example
+	echo hello world | .\minigzip | .\minigzip -d
+
+%.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+zlib.a: $(OBJS)
+	$(AR) $@ $(OBJS)
+
+%.exe : %.o $(LIBS)
+	$(LD) $@ $< $(LDLIBS)
+
+
+.PHONY : clean
+
+clean:
+	$(RM) *.d
+	$(RM) *.o
+	$(RM) *.exe
+	$(RM) zlib.a
+	$(RM) foo.gz
+
+DEPS := $(wildcard *.d)
+ifneq ($(DEPS),)
+include $(DEPS)
+endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/Makefile.riscos b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/Makefile.riscos
new file mode 100644
index 000000000..57e29d3fb
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/Makefile.riscos
@@ -0,0 +1,151 @@
+# Project:   zlib_1_03
+# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430
+# test works out-of-the-box, installs `somewhere' on demand
+
+# Toolflags:
+CCflags = -c -depend !Depend -IC: -g -throwback  -DRISCOS  -fah
+C++flags = -c -depend !Depend -IC: -throwback
+Linkflags = -aif -c++ -o $@
+ObjAsmflags = -throwback -NoCache -depend !Depend
+CMHGflags =
+LibFileflags = -c -l -o $@
+Squeezeflags = -o $@
+
+# change the line below to where _you_ want the library installed.
+libdest = lib:zlib
+
+# Final targets:
+@.lib:   @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \
+        @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \
+        @.o.uncompr @.o.zutil
+        LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \
+        @.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \
+        @.o.trees @.o.uncompr @.o.zutil
+test:   @.minigzip @.example @.lib
+	@copy @.lib @.libc  A~C~DF~L~N~P~Q~RS~TV
+	@echo running tests: hang on.
+	@/@.minigzip -f -9 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -f -1 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -h -9 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -h -1 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -9 libc
+	@/@.minigzip -d libc-gz
+	@/@.minigzip -1 libc
+	@/@.minigzip -d libc-gz
+	@diff @.lib @.libc
+	@echo that should have reported '@.lib and @.libc identical' if you have diff.
+	@/@.example @.fred @.fred
+	@echo that will have given lots of hello!'s.
+
+@.minigzip:   @.o.minigzip @.lib C:o.Stubs
+        Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs
+@.example:   @.o.example @.lib C:o.Stubs
+        Link $(Linkflags) @.o.example @.lib C:o.Stubs
+
+install: @.lib
+	cdir $(libdest)
+	cdir $(libdest).h
+	@copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV
+	@copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV
+	@copy @.lib $(libdest).lib  A~C~DF~L~N~P~Q~RS~TV
+	@echo okay, installed zlib in $(libdest)
+
+clean:; remove @.minigzip
+	remove @.example
+	remove @.libc
+	-wipe @.o.* F~r~cV
+	remove @.fred
+
+# User-editable dependencies:
+.c.o:
+        cc $(ccflags) -o $@ $<
+
+# Static dependencies:
+
+# Dynamic dependencies:
+o.example:	c.example
+o.example:	h.zlib
+o.example:	h.zconf
+o.minigzip:	c.minigzip
+o.minigzip:	h.zlib
+o.minigzip:	h.zconf
+o.adler32:	c.adler32
+o.adler32:	h.zlib
+o.adler32:	h.zconf
+o.compress:	c.compress
+o.compress:	h.zlib
+o.compress:	h.zconf
+o.crc32:	c.crc32
+o.crc32:	h.zlib
+o.crc32:	h.zconf
+o.deflate:	c.deflate
+o.deflate:	h.deflate
+o.deflate:	h.zutil
+o.deflate:	h.zlib
+o.deflate:	h.zconf
+o.gzio:	c.gzio
+o.gzio:	h.zutil
+o.gzio:	h.zlib
+o.gzio:	h.zconf
+o.infblock:	c.infblock
+o.infblock:	h.zutil
+o.infblock:	h.zlib
+o.infblock:	h.zconf
+o.infblock:	h.infblock
+o.infblock:	h.inftrees
+o.infblock:	h.infcodes
+o.infblock:	h.infutil
+o.infcodes:	c.infcodes
+o.infcodes:	h.zutil
+o.infcodes:	h.zlib
+o.infcodes:	h.zconf
+o.infcodes:	h.inftrees
+o.infcodes:	h.infblock
+o.infcodes:	h.infcodes
+o.infcodes:	h.infutil
+o.infcodes:	h.inffast
+o.inffast:	c.inffast
+o.inffast:	h.zutil
+o.inffast:	h.zlib
+o.inffast:	h.zconf
+o.inffast:	h.inftrees
+o.inffast:	h.infblock
+o.inffast:	h.infcodes
+o.inffast:	h.infutil
+o.inffast:	h.inffast
+o.inflate:	c.inflate
+o.inflate:	h.zutil
+o.inflate:	h.zlib
+o.inflate:	h.zconf
+o.inflate:	h.infblock
+o.inftrees:	c.inftrees
+o.inftrees:	h.zutil
+o.inftrees:	h.zlib
+o.inftrees:	h.zconf
+o.inftrees:	h.inftrees
+o.inftrees:	h.inffixed
+o.infutil:	c.infutil
+o.infutil:	h.zutil
+o.infutil:	h.zlib
+o.infutil:	h.zconf
+o.infutil:	h.infblock
+o.infutil:	h.inftrees
+o.infutil:	h.infcodes
+o.infutil:	h.infutil
+o.trees:	c.trees
+o.trees:	h.deflate
+o.trees:	h.zutil
+o.trees:	h.zlib
+o.trees:	h.zconf
+o.trees:	h.trees
+o.uncompr:	c.uncompr
+o.uncompr:	h.zlib
+o.uncompr:	h.zconf
+o.zutil:	c.zutil
+o.zutil:	h.zutil
+o.zutil:	h.zlib
+o.zutil:	h.zconf
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/README b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/README
new file mode 100644
index 000000000..800bf0798
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/README
@@ -0,0 +1,3 @@
+This directory contains files that have not been updated for zlib 1.2.x
+
+(Volunteers are encouraged to help clean this up.  Thanks.)
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/descrip.mms b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/descrip.mms
new file mode 100644
index 000000000..7066da5b5
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/descrip.mms
@@ -0,0 +1,48 @@
+# descrip.mms: MMS description file for building zlib on VMS
+# written by Martin P.J. Zinser <m.zinser@gsi.de>
+
+cc_defs =
+c_deb =
+
+.ifdef __DECC__
+pref = /prefix=all
+.endif
+
+OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\
+       deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\
+       inftrees.obj, infcodes.obj, infutil.obj, inffast.obj
+
+CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF)
+
+all : example.exe minigzip.exe
+        @ write sys$output " Example applications available"
+libz.olb : libz.olb($(OBJS))
+	@ write sys$output " libz available"
+
+example.exe : example.obj libz.olb
+              link example,libz.olb/lib
+
+minigzip.exe : minigzip.obj libz.olb
+              link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib
+
+clean :
+	delete *.obj;*,libz.olb;*
+
+
+# Other dependencies.
+adler32.obj : zutil.h zlib.h zconf.h
+compress.obj : zlib.h zconf.h
+crc32.obj : zutil.h zlib.h zconf.h
+deflate.obj : deflate.h zutil.h zlib.h zconf.h
+example.obj : zlib.h zconf.h
+gzio.obj : zutil.h zlib.h zconf.h
+infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
+infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h
+inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h
+inflate.obj : zutil.h zlib.h zconf.h infblock.h
+inftrees.obj : zutil.h zlib.h zconf.h inftrees.h
+infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h
+minigzip.obj : zlib.h zconf.h
+trees.obj : deflate.h zutil.h zlib.h zconf.h
+uncompr.obj : zlib.h zconf.h
+zutil.obj : zutil.h zlib.h zconf.h
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/os2/Makefile.os2 b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/os2/Makefile.os2
new file mode 100644
index 000000000..bb426c0d8
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/os2/Makefile.os2
@@ -0,0 +1,136 @@
+# Makefile for zlib under OS/2 using GCC (PGCC)
+# For conditions of distribution and use, see copyright notice in zlib.h
+
+# To compile and test, type:
+#   cp Makefile.os2 ..
+#   cd ..
+#   make -f Makefile.os2 test
+
+# This makefile will build a static library z.lib, a shared library
+# z.dll and a import library zdll.lib. You can use either z.lib or
+# zdll.lib by specifying either -lz or -lzdll on gcc's command line
+
+CC=gcc -Zomf -s
+
+CFLAGS=-O6 -Wall
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DZLIB_DEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+#################### BUG WARNING: #####################
+## infcodes.c hits a bug in pgcc-1.0, so you have to use either
+## -O# where # <= 4 or one of (-fno-ommit-frame-pointer or -fno-force-mem)
+## This bug is reportedly fixed in pgcc >1.0, but this was not tested
+CFLAGS+=-fno-force-mem
+
+LDFLAGS=-s -L. -lzdll -Zcrtdll
+LDSHARED=$(CC) -s -Zomf -Zdll -Zcrtdll
+
+VER=1.1.0
+ZLIB=z.lib
+SHAREDLIB=z.dll
+SHAREDLIBIMP=zdll.lib
+LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP)
+
+AR=emxomfar cr
+IMPLIB=emximp
+RANLIB=echo
+TAR=tar
+SHELL=bash
+
+prefix=/usr/local
+exec_prefix = $(prefix)
+
+OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \
+       zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o
+
+TEST_OBJS = example.o minigzip.o
+
+DISTFILES = README INDEX ChangeLog configure Make*[a-z0-9] *.[ch] descrip.mms \
+  algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \
+  nt/Makefile.nt nt/zlib.dnt  contrib/README.contrib contrib/*.txt \
+  contrib/asm386/*.asm contrib/asm386/*.c \
+  contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/iostream/*.cpp \
+  contrib/iostream/*.h  contrib/iostream2/*.h contrib/iostream2/*.cpp \
+  contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32
+
+all: example.exe minigzip.exe
+
+test: all
+	@LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \
+	echo hello world | ./minigzip | ./minigzip -d || \
+	  echo '		*** minigzip test FAILED ***' ; \
+	if ./example; then \
+	  echo '		*** zlib test OK ***'; \
+	else \
+	  echo '		*** zlib test FAILED ***'; \
+	fi
+
+$(ZLIB): $(OBJS)
+	$(AR) $@ $(OBJS)
+	-@ ($(RANLIB) $@ || true) >/dev/null 2>&1
+
+$(SHAREDLIB): $(OBJS) os2/z.def
+	$(LDSHARED) -o $@ $^
+
+$(SHAREDLIBIMP): os2/z.def
+	$(IMPLIB) -o $@ $^
+
+example.exe: example.o $(LIBS)
+	$(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS)
+
+minigzip.exe: minigzip.o $(LIBS)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS)
+
+clean:
+	rm -f *.o *~ example minigzip libz.a libz.so* foo.gz
+
+distclean:	clean
+
+zip:
+	mv Makefile Makefile~; cp -p Makefile.in Makefile
+	rm -f test.c ztest*.c
+	v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
+	zip -ul9 zlib$$v $(DISTFILES)
+	mv Makefile~ Makefile
+
+dist:
+	mv Makefile Makefile~; cp -p Makefile.in Makefile
+	rm -f test.c ztest*.c
+	d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\
+	rm -f $$d.tar.gz; \
+	if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \
+	files=""; \
+	for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \
+	cd ..; \
+	GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \
+	if test ! -d $$d; then rm -f $$d; fi
+	mv Makefile~ Makefile
+
+tags:
+	etags *.[ch]
+
+depend:
+	makedepend -- $(CFLAGS) -- *.[ch]
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+adler32.o: zlib.h zconf.h
+compress.o: zlib.h zconf.h
+crc32.o: zlib.h zconf.h
+deflate.o: deflate.h zutil.h zlib.h zconf.h
+example.o: zlib.h zconf.h
+gzio.o: zutil.h zlib.h zconf.h
+infblock.o: infblock.h inftrees.h infcodes.h infutil.h zutil.h zlib.h zconf.h
+infcodes.o: zutil.h zlib.h zconf.h
+infcodes.o: inftrees.h infblock.h infcodes.h infutil.h inffast.h
+inffast.o: zutil.h zlib.h zconf.h inftrees.h
+inffast.o: infblock.h infcodes.h infutil.h inffast.h
+inflate.o: zutil.h zlib.h zconf.h infblock.h
+inftrees.o: zutil.h zlib.h zconf.h inftrees.h
+infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h
+minigzip.o: zlib.h zconf.h
+trees.o: deflate.h zutil.h zlib.h zconf.h trees.h
+uncompr.o: zlib.h zconf.h
+zutil.o: zutil.h zlib.h zconf.h
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/os2/zlib.def b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/os2/zlib.def
new file mode 100644
index 000000000..4c753f1a3
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/os2/zlib.def
@@ -0,0 +1,51 @@
+;
+; Slightly modified version of ../nt/zlib.dnt :-)
+;
+
+LIBRARY		Z
+DESCRIPTION	"Zlib compression library for OS/2"
+CODE		PRELOAD MOVEABLE DISCARDABLE
+DATA		PRELOAD MOVEABLE MULTIPLE
+
+EXPORTS
+    adler32
+    compress
+    crc32
+    deflate
+    deflateCopy
+    deflateEnd
+    deflateInit2_
+    deflateInit_
+    deflateParams
+    deflateReset
+    deflateSetDictionary
+    gzclose
+    gzdopen
+    gzerror
+    gzflush
+    gzopen
+    gzread
+    gzwrite
+    inflate
+    inflateEnd
+    inflateInit2_
+    inflateInit_
+    inflateReset
+    inflateSetDictionary
+    inflateSync
+    uncompress
+    zlibVersion
+    gzprintf
+    gzputc
+    gzgetc
+    gzseek
+    gzrewind
+    gztell
+    gzeof
+    gzsetparams
+    zError
+    inflateSyncPoint
+    get_crc_table
+    compress2
+    gzputs
+    gzgets
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/old/visual-basic.txt b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/visual-basic.txt
new file mode 100644
index 000000000..57efe5812
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/old/visual-basic.txt
@@ -0,0 +1,160 @@
+See below some functions declarations for Visual Basic.
+
+Frequently Asked Question:
+
+Q: Each time I use the compress function I get the -5 error (not enough
+   room in the output buffer).
+
+A: Make sure that the length of the compressed buffer is passed by
+   reference ("as any"), not by value ("as long"). Also check that
+   before the call of compress this length is equal to the total size of
+   the compressed buffer and not zero.
+
+
+From: "Jon Caruana" <jon-net@usa.net>
+Subject: Re: How to port zlib declares to vb?
+Date: Mon, 28 Oct 1996 18:33:03 -0600
+
+Got the answer! (I haven't had time to check this but it's what I got, and
+looks correct):
+
+He has the following routines working:
+        compress
+        uncompress
+        gzopen
+        gzwrite
+        gzread
+        gzclose
+
+Declares follow: (Quoted from Carlos Rios <c_rios@sonda.cl>, in Vb4 form)
+
+#If Win16 Then   'Use Win16 calls.
+Declare Function compress Lib "ZLIB.DLL" (ByVal compr As
+        String, comprLen As Any, ByVal buf As String, ByVal buflen
+        As Long) As Integer
+Declare Function uncompress Lib "ZLIB.DLL" (ByVal uncompr
+        As String, uncomprLen As Any, ByVal compr As String, ByVal
+        lcompr As Long) As Integer
+Declare Function gzopen Lib "ZLIB.DLL" (ByVal filePath As
+        String, ByVal mode As String) As Long
+Declare Function gzread Lib "ZLIB.DLL" (ByVal file As
+        Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
+        As Integer
+Declare Function gzwrite Lib "ZLIB.DLL" (ByVal file As
+        Long, ByVal uncompr As String, ByVal uncomprLen As Integer)
+        As Integer
+Declare Function gzclose Lib "ZLIB.DLL" (ByVal file As
+        Long) As Integer
+#Else
+Declare Function compress Lib "ZLIB32.DLL"
+        (ByVal compr As String, comprLen As Any, ByVal buf As
+        String, ByVal buflen As Long) As Integer
+Declare Function uncompress Lib "ZLIB32.DLL"
+        (ByVal uncompr As String, uncomprLen As Any, ByVal compr As
+        String, ByVal lcompr As Long) As Long
+Declare Function gzopen Lib "ZLIB32.DLL"
+        (ByVal file As String, ByVal mode As String) As Long
+Declare Function gzread Lib "ZLIB32.DLL"
+        (ByVal file As Long, ByVal uncompr As String, ByVal
+        uncomprLen As Long) As Long
+Declare Function gzwrite Lib "ZLIB32.DLL"
+        (ByVal file As Long, ByVal uncompr As String, ByVal
+        uncomprLen As Long) As Long
+Declare Function gzclose Lib "ZLIB32.DLL"
+        (ByVal file As Long) As Long
+#End If
+
+-Jon Caruana
+jon-net@usa.net
+Microsoft Sitebuilder Network Level 1 Member - HTML Writer's Guild Member
+
+
+Here is another example from Michael <michael_borgsys@hotmail.com> that he
+says conforms to the VB guidelines, and that solves the problem of not
+knowing the uncompressed size by storing it at the end of the file:
+
+'Calling the functions:
+'bracket meaning: <parameter> [optional] {Range of possible values}
+'Call subCompressFile(<path with filename to compress> [, <path with
+filename to write to>, [level of compression {1..9}]])
+'Call subUncompressFile(<path with filename to compress>)
+
+Option Explicit
+Private lngpvtPcnSml As Long 'Stores value for 'lngPercentSmaller'
+Private Const SUCCESS As Long = 0
+Private Const strFilExt As String = ".cpr"
+Private Declare Function lngfncCpr Lib "zlib.dll" Alias "compress2" (ByRef
+dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long,
+ByVal level As Integer) As Long
+Private Declare Function lngfncUcp Lib "zlib.dll" Alias "uncompress" (ByRef
+dest As Any, ByRef destLen As Any, ByRef src As Any, ByVal srcLen As Long)
+As Long
+
+Public Sub subCompressFile(ByVal strargOriFilPth As String, Optional ByVal
+strargCprFilPth As String, Optional ByVal intLvl As Integer = 9)
+    Dim strCprPth As String
+    Dim lngOriSiz As Long
+    Dim lngCprSiz As Long
+    Dim bytaryOri() As Byte
+    Dim bytaryCpr() As Byte
+    lngOriSiz = FileLen(strargOriFilPth)
+    ReDim bytaryOri(lngOriSiz - 1)
+    Open strargOriFilPth For Binary Access Read As #1
+        Get #1, , bytaryOri()
+    Close #1
+    strCprPth = IIf(strargCprFilPth = "", strargOriFilPth, strargCprFilPth)
+'Select file path and name
+    strCprPth = strCprPth & IIf(Right(strCprPth, Len(strFilExt)) =
+strFilExt, "", strFilExt) 'Add file extension if not exists
+    lngCprSiz = (lngOriSiz * 1.01) + 12 'Compression needs temporary a bit
+more space then original file size
+    ReDim bytaryCpr(lngCprSiz - 1)
+    If lngfncCpr(bytaryCpr(0), lngCprSiz, bytaryOri(0), lngOriSiz, intLvl) =
+SUCCESS Then
+        lngpvtPcnSml = (1# - (lngCprSiz / lngOriSiz)) * 100
+        ReDim Preserve bytaryCpr(lngCprSiz - 1)
+        Open strCprPth For Binary Access Write As #1
+            Put #1, , bytaryCpr()
+            Put #1, , lngOriSiz 'Add the the original size value to the end
+(last 4 bytes)
+        Close #1
+    Else
+        MsgBox "Compression error"
+    End If
+    Erase bytaryCpr
+    Erase bytaryOri
+End Sub
+
+Public Sub subUncompressFile(ByVal strargFilPth As String)
+    Dim bytaryCpr() As Byte
+    Dim bytaryOri() As Byte
+    Dim lngOriSiz As Long
+    Dim lngCprSiz As Long
+    Dim strOriPth As String
+    lngCprSiz = FileLen(strargFilPth)
+    ReDim bytaryCpr(lngCprSiz - 1)
+    Open strargFilPth For Binary Access Read As #1
+        Get #1, , bytaryCpr()
+    Close #1
+    'Read the original file size value:
+    lngOriSiz = bytaryCpr(lngCprSiz - 1) * (2 ^ 24) _
+              + bytaryCpr(lngCprSiz - 2) * (2 ^ 16) _
+              + bytaryCpr(lngCprSiz - 3) * (2 ^ 8) _
+              + bytaryCpr(lngCprSiz - 4)
+    ReDim Preserve bytaryCpr(lngCprSiz - 5) 'Cut of the original size value
+    ReDim bytaryOri(lngOriSiz - 1)
+    If lngfncUcp(bytaryOri(0), lngOriSiz, bytaryCpr(0), lngCprSiz) = SUCCESS
+Then
+        strOriPth = Left(strargFilPth, Len(strargFilPth) - Len(strFilExt))
+        Open strOriPth For Binary Access Write As #1
+            Put #1, , bytaryOri()
+        Close #1
+    Else
+        MsgBox "Uncompression error"
+    End If
+    Erase bytaryCpr
+    Erase bytaryOri
+End Sub
+Public Property Get lngPercentSmaller() As Long
+    lngPercentSmaller = lngpvtPcnSml
+End Property
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/README400 b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/README400
new file mode 100644
index 000000000..4f98334f5
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/README400
@@ -0,0 +1,48 @@
+        ZLIB version 1.2.11 for OS/400 installation instructions
+
+1) Download and unpack the zlib tarball to some IFS directory.
+   (i.e.: /path/to/the/zlib/ifs/source/directory)
+
+   If the installed IFS command suppors gzip format, this is straightforward,
+else you have to unpack first to some directory on a system supporting it,
+then move the whole directory to the IFS via the network (via SMB or FTP).
+
+2) Edit the configuration parameters in the compilation script.
+
+        EDTF STMF('/path/to/the/zlib/ifs/source/directory/os400/make.sh')
+
+Tune the parameters according to your needs if not matching the defaults.
+Save the file and exit after edition.
+
+3) Enter qshell, then work in the zlib OS/400 specific directory.
+
+        QSH
+        cd /path/to/the/zlib/ifs/source/directory/os400
+
+4) Compile and install
+
+        sh make.sh
+
+The script will:
+- create the libraries, objects and IFS directories for the zlib environment,
+- compile all modules,
+- create a service program,
+- create a static and a dynamic binding directory,
+- install header files for C/C++ and for ILE/RPG, both for compilation in
+  DB2 and IFS environments.
+
+That's all. 
+
+
+Notes:  For OS/400 ILE RPG programmers, a /copy member defining the ZLIB
+                API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC).
+                In the ILE environment, the same definitions are available from
+                file zlib.inc located in the same IFS include directory as the
+                C/C++ header files.
+                Please read comments in this member for more information.
+
+        Remember that most foreign textual data are ASCII coded: this
+                implementation does not handle conversion from/to ASCII, so
+                text data code conversions must be done explicitely.
+
+        Mainly for the reason above, always open zipped files in binary mode.
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/bndsrc b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/bndsrc
new file mode 100644
index 000000000..5e6e0a2f0
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/bndsrc
@@ -0,0 +1,119 @@
+STRPGMEXP PGMLVL(*CURRENT) SIGNATURE('ZLIB')
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.1.3 entry points.                                    */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("adler32")
+  EXPORT SYMBOL("compress")
+  EXPORT SYMBOL("compress2")
+  EXPORT SYMBOL("crc32")
+  EXPORT SYMBOL("get_crc_table")
+  EXPORT SYMBOL("deflate")
+  EXPORT SYMBOL("deflateEnd")
+  EXPORT SYMBOL("deflateSetDictionary")
+  EXPORT SYMBOL("deflateCopy")
+  EXPORT SYMBOL("deflateReset")
+  EXPORT SYMBOL("deflateParams")
+  EXPORT SYMBOL("deflatePrime")
+  EXPORT SYMBOL("deflateInit_")
+  EXPORT SYMBOL("deflateInit2_")
+  EXPORT SYMBOL("gzopen")
+  EXPORT SYMBOL("gzdopen")
+  EXPORT SYMBOL("gzsetparams")
+  EXPORT SYMBOL("gzread")
+  EXPORT SYMBOL("gzwrite")
+  EXPORT SYMBOL("gzprintf")
+  EXPORT SYMBOL("gzputs")
+  EXPORT SYMBOL("gzgets")
+  EXPORT SYMBOL("gzputc")
+  EXPORT SYMBOL("gzgetc")
+  EXPORT SYMBOL("gzflush")
+  EXPORT SYMBOL("gzseek")
+  EXPORT SYMBOL("gzrewind")
+  EXPORT SYMBOL("gztell")
+  EXPORT SYMBOL("gzeof")
+  EXPORT SYMBOL("gzclose")
+  EXPORT SYMBOL("gzerror")
+  EXPORT SYMBOL("inflate")
+  EXPORT SYMBOL("inflateEnd")
+  EXPORT SYMBOL("inflateSetDictionary")
+  EXPORT SYMBOL("inflateSync")
+  EXPORT SYMBOL("inflateReset")
+  EXPORT SYMBOL("inflateInit_")
+  EXPORT SYMBOL("inflateInit2_")
+  EXPORT SYMBOL("inflateSyncPoint")
+  EXPORT SYMBOL("uncompress")
+  EXPORT SYMBOL("zlibVersion")
+  EXPORT SYMBOL("zError")
+  EXPORT SYMBOL("z_errmsg")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.1 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("compressBound")
+  EXPORT SYMBOL("deflateBound")
+  EXPORT SYMBOL("deflatePending")
+  EXPORT SYMBOL("gzungetc")
+  EXPORT SYMBOL("gzclearerr")
+  EXPORT SYMBOL("inflateBack")
+  EXPORT SYMBOL("inflateBackEnd")
+  EXPORT SYMBOL("inflateBackInit_")
+  EXPORT SYMBOL("inflateCopy")
+  EXPORT SYMBOL("zlibCompileFlags")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.4 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("adler32_combine")
+  EXPORT SYMBOL("adler32_combine64")
+  EXPORT SYMBOL("crc32_combine")
+  EXPORT SYMBOL("crc32_combine64")
+  EXPORT SYMBOL("deflateSetHeader")
+  EXPORT SYMBOL("deflateTune")
+  EXPORT SYMBOL("gzbuffer")
+  EXPORT SYMBOL("gzclose_r")
+  EXPORT SYMBOL("gzclose_w")
+  EXPORT SYMBOL("gzdirect")
+  EXPORT SYMBOL("gzoffset")
+  EXPORT SYMBOL("gzoffset64")
+  EXPORT SYMBOL("gzopen64")
+  EXPORT SYMBOL("gzseek64")
+  EXPORT SYMBOL("gztell64")
+  EXPORT SYMBOL("inflateGetHeader")
+  EXPORT SYMBOL("inflateMark")
+  EXPORT SYMBOL("inflatePrime")
+  EXPORT SYMBOL("inflateReset2")
+  EXPORT SYMBOL("inflateUndermine")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.6 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("deflateResetKeep")
+  EXPORT SYMBOL("gzgetc_")
+  EXPORT SYMBOL("inflateResetKeep")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.8 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("gzvprintf")
+  EXPORT SYMBOL("inflateGetDictionary")
+
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+/*   Version 1.2.9 additional entry points.                         */
+/*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*/
+
+  EXPORT SYMBOL("adler32_z")
+  EXPORT SYMBOL("crc32_z")
+  EXPORT SYMBOL("deflateGetDictionary")
+  EXPORT SYMBOL("gzfread")
+  EXPORT SYMBOL("gzfwrite")
+  EXPORT SYMBOL("inflateCodesUsed")
+  EXPORT SYMBOL("inflateValidate")
+  EXPORT SYMBOL("uncompress2")
+
+ENDPGMEXP
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/make.sh b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/make.sh
new file mode 100644
index 000000000..19eec117a
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/make.sh
@@ -0,0 +1,366 @@
+#!/bin/sh
+#
+#       ZLIB compilation script for the OS/400.
+#
+#
+#       This is a shell script since make is not a standard component of OS/400.
+
+
+################################################################################
+#
+#                       Tunable configuration parameters.
+#
+################################################################################
+
+TARGETLIB='ZLIB'                # Target OS/400 program library
+STATBNDDIR='ZLIB_A'             # Static binding directory.
+DYNBNDDIR='ZLIB'                # Dynamic binding directory.
+SRVPGM="ZLIB"                   # Service program.
+IFSDIR='/zlib'                  # IFS support base directory.
+TGTCCSID='500'                  # Target CCSID of objects
+DEBUG='*NONE'                   # Debug level
+OPTIMIZE='40'                   # Optimisation level
+OUTPUT='*NONE'                  # Compilation output option.
+TGTRLS='V6R1M0'                 # Target OS release
+
+export TARGETLIB STATBNDDIR DYNBNDDIR SRVPGM IFSDIR
+export TGTCCSID DEBUG OPTIMIZE OUTPUT TGTRLS
+
+
+################################################################################
+#
+#                       OS/400 specific definitions.
+#
+################################################################################
+
+LIBIFSNAME="/QSYS.LIB/${TARGETLIB}.LIB"
+
+
+################################################################################
+#
+#                               Procedures.
+#
+################################################################################
+
+#       action_needed dest [src]
+#
+#       dest is an object to build
+#       if specified, src is an object on which dest depends.
+#
+#       exit 0 (succeeds) if some action has to be taken, else 1.
+
+action_needed()
+
+{
+        [ ! -e "${1}" ] && return 0
+        [ "${2}" ] || return 1
+        [ "${1}" -ot "${2}" ] && return 0
+        return 1
+}
+
+
+#       make_module module_name source_name [additional_definitions]
+#
+#       Compile source name into module if needed.
+#       As side effect, append the module name to variable MODULES.
+#       Set LINK to "YES" if the module has been compiled.
+
+make_module()
+
+{
+    MODULES="${MODULES} ${1}"
+    MODIFSNAME="${LIBIFSNAME}/${1}.MODULE"
+    CSRC="`basename \"${2}\"`"
+
+    if action_needed "${MODIFSNAME}" "${2}"
+    then    :
+    elif [ ! "`sed -e \"/<source name=\\\"${CSRC}\\\">/,/<\\\\/source>/!d\" \
+      -e '/<depend /!d'                                                 \
+      -e 's/.* name=\"\\([^\"]*\\)\".*/\\1/' < \"${TOPDIR}/treebuild.xml\" |
+        while read HDR
+        do      if action_needed \"${MODIFSNAME}\" \"${IFSDIR}/include/${HDR}\"
+                then    echo recompile
+                        break
+                fi
+        done`" ]
+    then    return 0
+    fi
+
+    CMD="CRTCMOD MODULE(${TARGETLIB}/${1}) SRCSTMF('${2}')"
+    CMD="${CMD} SYSIFCOPT(*IFS64IO) OPTION(*INCDIRFIRST)"
+    CMD="${CMD} LOCALETYPE(*LOCALE) FLAG(10)"
+    CMD="${CMD} INCDIR('${IFSDIR}/include' ${INCLUDES})"
+    CMD="${CMD} TGTCCSID(${TGTCCSID}) TGTRLS(${TGTRLS})"
+    CMD="${CMD} OUTPUT(${OUTPUT})"
+    CMD="${CMD} OPTIMIZE(${OPTIMIZE})"
+    CMD="${CMD} DBGVIEW(${DEBUG})"
+    system "${CMD}"
+    LINK=YES
+}
+
+
+#       Determine DB2 object name from IFS name.
+
+db2_name()
+
+{
+        basename "${1}"                                                 |
+        tr 'a-z-' 'A-Z_'                                                |
+        sed -e 's/\..*//'                                               \
+            -e 's/^\(.\).*\(.........\)$/\1\2/'
+}
+
+
+#       Force enumeration types to be the same size as integers.
+
+copy_hfile()
+
+{
+        sed -e '1i\
+#pragma enum(int)\
+' "${@}" -e '$a\
+#pragma enum(pop)\
+'
+}
+
+
+################################################################################
+#
+#                             Script initialization.
+#
+################################################################################
+
+SCRIPTDIR=`dirname "${0}"`
+
+case "${SCRIPTDIR}" in
+/*)     ;;
+*)      SCRIPTDIR="`pwd`/${SCRIPTDIR}"
+esac
+
+while true
+do      case "${SCRIPTDIR}" in
+        */.)    SCRIPTDIR="${SCRIPTDIR%/.}";;
+        *)      break;;
+        esac
+done
+
+#  The script directory is supposed to be in ${TOPDIR}/os400.
+
+TOPDIR=`dirname "${SCRIPTDIR}"`
+export SCRIPTDIR TOPDIR
+cd "${TOPDIR}"
+
+
+#  Extract the version from the master compilation XML file.
+
+VERSION=`sed -e '/^<package /!d'                                        \
+            -e 's/^.* version="\([0-9.]*\)".*$/\1/' -e 'q'              \
+            < treebuild.xml`
+export VERSION
+
+################################################################################
+
+
+#       Create the OS/400 library if it does not exist.
+
+if action_needed "${LIBIFSNAME}"
+then    CMD="CRTLIB LIB(${TARGETLIB}) TEXT('ZLIB: Data compression API')"
+        system "${CMD}"
+fi
+
+
+#       Create the DOCS source file if it does not exist.
+
+if action_needed "${LIBIFSNAME}/DOCS.FILE"
+then    CMD="CRTSRCPF FILE(${TARGETLIB}/DOCS) RCDLEN(112)"
+        CMD="${CMD} CCSID(${TGTCCSID}) TEXT('Documentation texts')"
+        system "${CMD}"
+fi
+
+#       Copy some documentation files if needed.
+
+for TEXT in "${TOPDIR}/ChangeLog" "${TOPDIR}/FAQ"                       \
+    "${TOPDIR}/README" "${SCRIPTDIR}/README400"
+do      MEMBER="${LIBIFSNAME}/DOCS.FILE/`db2_name \"${TEXT}\"`.MBR"
+
+        if action_needed "${MEMBER}" "${TEXT}"
+        then    CMD="CPY OBJ('${TEXT}') TOOBJ('${MEMBER}') TOCCSID(${TGTCCSID})"
+                CMD="${CMD} DTAFMT(*TEXT) REPLACE(*YES)"
+                system "${CMD}"
+        fi
+done
+
+
+#       Create the OS/400 source program file for the C header files.
+
+SRCPF="${LIBIFSNAME}/H.FILE"
+
+if action_needed "${SRCPF}"
+then    CMD="CRTSRCPF FILE(${TARGETLIB}/H) RCDLEN(112)"
+        CMD="${CMD} CCSID(${TGTCCSID}) TEXT('ZLIB: C/C++ header files')"
+        system "${CMD}"
+fi
+
+
+#       Create the IFS directory for the C header files.
+
+if action_needed "${IFSDIR}/include"
+then    mkdir -p "${IFSDIR}/include"
+fi
+
+#       Copy the header files to DB2 library. Link from IFS include directory.
+
+for HFILE in "${TOPDIR}/"*.h
+do      DEST="${SRCPF}/`db2_name \"${HFILE}\"`.MBR"
+
+        if action_needed "${DEST}" "${HFILE}"
+        then    copy_hfile < "${HFILE}" > tmphdrfile
+
+                #       Need to translate to target CCSID.
+
+                CMD="CPY OBJ('`pwd`/tmphdrfile') TOOBJ('${DEST}')"
+                CMD="${CMD} TOCCSID(${TGTCCSID}) DTAFMT(*TEXT) REPLACE(*YES)"
+                system "${CMD}"
+                # touch -r "${HFILE}" "${DEST}"
+                rm -f tmphdrfile
+        fi
+
+        IFSFILE="${IFSDIR}/include/`basename \"${HFILE}\"`"
+
+        if action_needed "${IFSFILE}" "${DEST}"
+        then    rm -f "${IFSFILE}"
+                ln -s "${DEST}" "${IFSFILE}"
+        fi
+done
+
+
+#       Install the ILE/RPG header file.
+
+
+HFILE="${SCRIPTDIR}/zlib.inc"
+DEST="${SRCPF}/ZLIB.INC.MBR"
+
+if action_needed "${DEST}" "${HFILE}"
+then    CMD="CPY OBJ('${HFILE}') TOOBJ('${DEST}')"
+        CMD="${CMD} TOCCSID(${TGTCCSID}) DTAFMT(*TEXT) REPLACE(*YES)"
+        system "${CMD}"
+        # touch -r "${HFILE}" "${DEST}"
+fi
+
+IFSFILE="${IFSDIR}/include/`basename \"${HFILE}\"`"
+
+if action_needed "${IFSFILE}" "${DEST}"
+then    rm -f "${IFSFILE}"
+        ln -s "${DEST}" "${IFSFILE}"
+fi
+
+
+#      Create and compile the identification source file.
+
+echo '#pragma comment(user, "ZLIB version '"${VERSION}"'")' > os400.c
+echo '#pragma comment(user, __DATE__)' >> os400.c
+echo '#pragma comment(user, __TIME__)' >> os400.c
+echo '#pragma comment(copyright, "Copyright (C) 1995-2017 Jean-Loup Gailly, Mark Adler. OS/400 version by P. Monnerat.")' >> os400.c
+make_module     OS400           os400.c
+LINK=                           # No need to rebuild service program yet.
+MODULES=
+
+
+#       Get source list.
+
+CSOURCES=`sed -e '/<source name="/!d'                                   \
+    -e 's/.* name="\([^"]*\)".*/\1/' < treebuild.xml`
+
+#       Compile the sources into modules.
+
+for SRC in ${CSOURCES}
+do      MODULE=`db2_name "${SRC}"`
+        make_module "${MODULE}" "${SRC}"
+done
+
+
+#       If needed, (re)create the static binding directory.
+
+if action_needed "${LIBIFSNAME}/${STATBNDDIR}.BNDDIR"
+then    LINK=YES
+fi
+
+if [ "${LINK}" ]
+then    rm -rf "${LIBIFSNAME}/${STATBNDDIR}.BNDDIR"
+        CMD="CRTBNDDIR BNDDIR(${TARGETLIB}/${STATBNDDIR})"
+        CMD="${CMD} TEXT('ZLIB static binding directory')"
+        system "${CMD}"
+
+        for MODULE in ${MODULES}
+        do      CMD="ADDBNDDIRE BNDDIR(${TARGETLIB}/${STATBNDDIR})"
+                CMD="${CMD} OBJ((${TARGETLIB}/${MODULE} *MODULE))"
+                system "${CMD}"
+        done
+fi
+
+
+#       The exportation file for service program creation must be in a DB2
+#               source file, so make sure it exists.
+
+if action_needed "${LIBIFSNAME}/TOOLS.FILE"
+then    CMD="CRTSRCPF FILE(${TARGETLIB}/TOOLS) RCDLEN(112)"
+        CMD="${CMD} CCSID(${TGTCCSID}) TEXT('ZLIB: build tools')"
+        system "${CMD}"
+fi
+
+
+DEST="${LIBIFSNAME}/TOOLS.FILE/BNDSRC.MBR"
+
+if action_needed "${SCRIPTDIR}/bndsrc" "${DEST}"
+then    CMD="CPY OBJ('${SCRIPTDIR}/bndsrc') TOOBJ('${DEST}')"
+        CMD="${CMD} TOCCSID(${TGTCCSID}) DTAFMT(*TEXT) REPLACE(*YES)"
+        system "${CMD}"
+        # touch -r "${SCRIPTDIR}/bndsrc" "${DEST}"
+        LINK=YES
+fi
+
+
+#       Build the service program if needed.
+
+if action_needed "${LIBIFSNAME}/${SRVPGM}.SRVPGM"
+then    LINK=YES
+fi
+
+if [ "${LINK}" ]
+then    CMD="CRTSRVPGM SRVPGM(${TARGETLIB}/${SRVPGM})"
+        CMD="${CMD} SRCFILE(${TARGETLIB}/TOOLS) SRCMBR(BNDSRC)"
+        CMD="${CMD} MODULE(${TARGETLIB}/OS400)"
+        CMD="${CMD} BNDDIR(${TARGETLIB}/${STATBNDDIR})"
+        CMD="${CMD} TEXT('ZLIB ${VERSION} dynamic library')"
+        CMD="${CMD} TGTRLS(${TGTRLS})"
+        system "${CMD}"
+        LINK=YES
+
+        #       Duplicate the service program for a versioned backup.
+
+        BACKUP=`echo "${SRVPGM}${VERSION}"                              |
+                sed -e 's/.*\(..........\)$/\1/' -e 's/\./_/g'`
+        BACKUP="`db2_name \"${BACKUP}\"`"
+        BKUPIFSNAME="${LIBIFSNAME}/${BACKUP}.SRVPGM"
+        rm -f "${BKUPIFSNAME}"
+        CMD="CRTDUPOBJ OBJ(${SRVPGM}) FROMLIB(${TARGETLIB})"
+        CMD="${CMD} OBJTYPE(*SRVPGM) NEWOBJ(${BACKUP})"
+        system "${CMD}"
+fi
+
+
+#       If needed, (re)create the dynamic binding directory.
+
+if action_needed "${LIBIFSNAME}/${DYNBNDDIR}.BNDDIR"
+then    LINK=YES
+fi
+
+if [ "${LINK}" ]
+then    rm -rf "${LIBIFSNAME}/${DYNBNDDIR}.BNDDIR"
+        CMD="CRTBNDDIR BNDDIR(${TARGETLIB}/${DYNBNDDIR})"
+        CMD="${CMD} TEXT('ZLIB dynamic binding directory')"
+        system "${CMD}"
+        CMD="ADDBNDDIRE BNDDIR(${TARGETLIB}/${DYNBNDDIR})"
+        CMD="${CMD} OBJ((*LIBL/${SRVPGM} *SRVPGM))"
+        system "${CMD}"
+fi
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/zlib.inc b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/zlib.inc
new file mode 100644
index 000000000..c6aca2cbd
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/os400/zlib.inc
@@ -0,0 +1,527 @@
+      *  ZLIB.INC - Interface to the general purpose compression library
+      *
+      *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
+      *  Version 1.2.11
+      *
+      *
+      *  WARNING:
+      *     Procedures inflateInit(), inflateInit2(), deflateInit(),
+      *         deflateInit2() and inflateBackInit() need to be called with
+      *         two additional arguments:
+      *         the package version string and the stream control structure.
+      *         size. This is needed because RPG lacks some macro feature.
+      *         Call these procedures as:
+      *             inflateInit(...: ZLIB_VERSION: %size(z_stream))
+      *
+      /if not defined(ZLIB_H_)
+      /define ZLIB_H_
+      *
+      **************************************************************************
+      *                               Constants
+      **************************************************************************
+      *
+      *  Versioning information.
+      *
+     D ZLIB_VERSION    C                   '1.2.11'
+     D ZLIB_VERNUM     C                   X'12a0'
+     D ZLIB_VER_MAJOR  C                   1
+     D ZLIB_VER_MINOR  C                   2
+     D ZLIB_VER_REVISION...
+     D                 C                   11
+     D ZLIB_VER_SUBREVISION...
+     D                 C                   0
+      *
+      *  Other equates.
+      *
+     D Z_NO_FLUSH      C                   0
+     D Z_PARTIAL_FLUSH...
+     D                 C                   1
+     D Z_SYNC_FLUSH    C                   2
+     D Z_FULL_FLUSH    C                   3
+     D Z_FINISH        C                   4
+     D Z_BLOCK         C                   5
+     D Z_TREES         C                   6
+      *
+     D Z_OK            C                   0
+     D Z_STREAM_END    C                   1
+     D Z_NEED_DICT     C                   2
+     D Z_ERRNO         C                   -1
+     D Z_STREAM_ERROR  C                   -2
+     D Z_DATA_ERROR    C                   -3
+     D Z_MEM_ERROR     C                   -4
+     D Z_BUF_ERROR     C                   -5
+     D Z_VERSION_ERROR C                   -6
+      *
+     D Z_NO_COMPRESSION...
+     D                 C                   0
+     D Z_BEST_SPEED    C                   1
+     D Z_BEST_COMPRESSION...
+     D                 C                   9
+     D Z_DEFAULT_COMPRESSION...
+     D                 C                   -1
+      *
+     D Z_FILTERED      C                   1
+     D Z_HUFFMAN_ONLY  C                   2
+     D Z_RLE           C                   3
+     D Z_DEFAULT_STRATEGY...
+     D                 C                   0
+      *
+     D Z_BINARY        C                   0
+     D Z_ASCII         C                   1
+     D Z_UNKNOWN       C                   2
+      *
+     D Z_DEFLATED      C                   8
+      *
+     D Z_NULL          C                   0
+      *
+      **************************************************************************
+      *                                 Types
+      **************************************************************************
+      *
+     D z_streamp       S               *                                        Stream struct ptr
+     D gzFile          S               *                                        File pointer
+     D gz_headerp      S               *
+     D z_off_t         S             10i 0                                      Stream offsets
+     D z_off64_t       S             20i 0                                      Stream offsets
+      *
+      **************************************************************************
+      *                               Structures
+      **************************************************************************
+      *
+      *  The GZIP encode/decode stream support structure.
+      *
+     D z_stream        DS                  align based(z_streamp)
+     D  zs_next_in                     *                                        Next input byte
+     D  zs_avail_in                  10U 0                                      Byte cnt at next_in
+     D  zs_total_in                  10U 0                                      Total bytes read
+     D  zs_next_out                    *                                        Output buffer ptr
+     D  zs_avail_out                 10U 0                                      Room left @ next_out
+     D  zs_total_out                 10U 0                                      Total bytes written
+     D  zs_msg                         *                                        Last errmsg or null
+     D  zs_state                       *                                        Internal state
+     D  zs_zalloc                      *   procptr                              Int. state allocator
+     D  zs_free                        *   procptr                              Int. state dealloc.
+     D  zs_opaque                      *                                        Private alloc. data
+     D  zs_data_type                 10i 0                                      ASC/BIN best guess
+     D  zs_adler                     10u 0                                      Uncompr. adler32 val
+     D                               10U 0                                      Reserved
+     D                               10U 0                                      Ptr. alignment
+      *
+      **************************************************************************
+      *                     Utility function prototypes
+      **************************************************************************
+      *
+     D compress        PR            10I 0 extproc('compress')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10u 0 value                                Source length
+      *
+     D compress2       PR            10I 0 extproc('compress2')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10U 0 value                                Source length
+     D  level                        10I 0 value                                Compression level
+      *
+     D compressBound   PR            10U 0 extproc('compressBound')
+     D  sourceLen                    10U 0 value
+      *
+     D uncompress      PR            10I 0 extproc('uncompress')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10U 0 value                                Source length
+      *
+     D uncompress2     PR            10I 0 extproc('uncompress2')
+     D  dest                      65535    options(*varsize)                    Destination buffer
+     D  destLen                      10U 0                                      Destination length
+     D  source                    65535    const options(*varsize)              Source buffer
+     D  sourceLen                    10U 0                                      Source length
+      *
+      /if not defined(LARGE_FILES)
+     D gzopen          PR                  extproc('gzopen')
+     D                                     like(gzFile)
+     D  path                           *   value options(*string)               File pathname
+     D  mode                           *   value options(*string)               Open mode
+      /else
+     D gzopen          PR                  extproc('gzopen64')
+     D                                     like(gzFile)
+     D  path                           *   value options(*string)               File pathname
+     D  mode                           *   value options(*string)               Open mode
+      *
+     D gzopen64        PR                  extproc('gzopen64')
+     D                                     like(gzFile)
+     D  path                           *   value options(*string)               File pathname
+     D  mode                           *   value options(*string)               Open mode
+      /endif
+      *
+     D gzdopen         PR                  extproc('gzdopen')
+     D                                     like(gzFile)
+     D  fd                           10I 0 value                                File descriptor
+     D  mode                           *   value options(*string)               Open mode
+      *
+     D gzbuffer        PR            10I 0 extproc('gzbuffer')
+     D  file                               value like(gzFile)                   File pointer
+     D  size                         10U 0 value
+      *
+     D gzsetparams     PR            10I 0 extproc('gzsetparams')
+     D  file                               value like(gzFile)                   File pointer
+     D  level                        10I 0 value
+     D  strategy                     10I 0 value
+      *
+     D gzread          PR            10I 0 extproc('gzread')
+     D  file                               value like(gzFile)                   File pointer
+     D  buf                       65535    options(*varsize)                    Buffer
+     D  len                          10u 0 value                                Buffer length
+      *
+     D gzfread          PR           20I 0 extproc('gzfread')
+     D  buf                       65535    options(*varsize)                    Buffer
+     D  size                         20u 0 value                                Buffer length
+     D  nitems                       20u 0 value                                Buffer length
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzwrite         PR            10I 0 extproc('gzwrite')
+     D  file                               value like(gzFile)                   File pointer
+     D  buf                       65535    const options(*varsize)              Buffer
+     D  len                          10u 0 value                                Buffer length
+      *
+     D gzfwrite         PR           20I 0 extproc('gzfwrite')
+     D  buf                       65535    options(*varsize)                    Buffer
+     D  size                         20u 0 value                                Buffer length
+     D  nitems                       20u 0 value                                Buffer length
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzputs          PR            10I 0 extproc('gzputs')
+     D  file                               value like(gzFile)                   File pointer
+     D  s                              *   value options(*string)               String to output
+      *
+     D gzgets          PR              *   extproc('gzgets')
+     D  file                               value like(gzFile)                   File pointer
+     D  buf                       65535    options(*varsize)                    Read buffer
+     D  len                          10i 0 value                                Buffer length
+      *
+     D gzputc          PR            10i 0 extproc('gzputc')
+     D  file                               value like(gzFile)                   File pointer
+     D  c                            10I 0 value                                Character to write
+      *
+     D gzgetc          PR            10i 0 extproc('gzgetc')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzgetc_         PR            10i 0 extproc('gzgetc_')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzungetc        PR            10i 0 extproc('gzungetc')
+     D  c                            10I 0 value                                Character to push
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzflush         PR            10i 0 extproc('gzflush')
+     D  file                               value like(gzFile)                   File pointer
+     D  flush                        10I 0 value                                Type of flush
+      *
+      /if not defined(LARGE_FILES)
+     D gzseek          PR                  extproc('gzseek')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+     D  offset                             value like(z_off_t)                  Offset
+     D  whence                       10i 0 value                                Origin
+      /else
+     D gzseek          PR                  extproc('gzseek64')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+     D  offset                             value like(z_off_t)                  Offset
+     D  whence                       10i 0 value                                Origin
+      *
+     D gzseek64        PR                  extproc('gzseek64')
+     D                                     like(z_off64_t)
+     D  file                               value like(gzFile)                   File pointer
+     D  offset                             value like(z_off64_t)                Offset
+     D  whence                       10i 0 value                                Origin
+      /endif
+      *
+     D gzrewind        PR            10i 0 extproc('gzrewind')
+     D  file                               value like(gzFile)                   File pointer
+      *
+      /if not defined(LARGE_FILES)
+     D gztell          PR                  extproc('gztell')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      /else
+     D gztell          PR                  extproc('gztell64')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gztell64        PR                  extproc('gztell64')
+     D                                     like(z_off64_t)
+     D  file                               value like(gzFile)                   File pointer
+      /endif
+      *
+      /if not defined(LARGE_FILES)
+     D gzoffset        PR                  extproc('gzoffset')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      /else
+     D gzoffset        PR                  extproc('gzoffset64')
+     D                                     like(z_off_t)
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzoffset64      PR                  extproc('gzoffset64')
+     D                                     like(z_off64_t)
+     D  file                               value like(gzFile)                   File pointer
+      /endif
+      *
+     D gzeof           PR            10i 0 extproc('gzeof')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzdirect        PR            10i 0 extproc('gzdirect')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzclose_r       PR            10i 0 extproc('gzclose_r')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzclose_w       PR            10i 0 extproc('gzclose_w')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzclose         PR            10i 0 extproc('gzclose')
+     D  file                               value like(gzFile)                   File pointer
+      *
+     D gzerror         PR              *   extproc('gzerror')                   Error string
+     D  file                               value like(gzFile)                   File pointer
+     D  errnum                       10I 0                                      Error code
+      *
+     D gzclearerr      PR                  extproc('gzclearerr')
+     D  file                               value like(gzFile)                   File pointer
+      *
+      **************************************************************************
+      *                        Basic function prototypes
+      **************************************************************************
+      *
+     D zlibVersion     PR              *   extproc('zlibVersion')               Version string
+      *
+     D deflateInit     PR            10I 0 extproc('deflateInit_')              Init. compression
+     D  strm                               like(z_stream)                       Compression stream
+     D  level                        10I 0 value                                Compression level
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D deflate         PR            10I 0 extproc('deflate')                   Compress data
+     D  strm                               like(z_stream)                       Compression stream
+     D  flush                        10I 0 value                                Flush type required
+      *
+     D deflateEnd      PR            10I 0 extproc('deflateEnd')                Termin. compression
+     D  strm                               like(z_stream)                       Compression stream
+      *
+     D inflateInit     PR            10I 0 extproc('inflateInit_')              Init. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D inflate         PR            10I 0 extproc('inflate')                   Expand data
+     D  strm                               like(z_stream)                       Expansion stream
+     D  flush                        10I 0 value                                Flush type required
+      *
+     D inflateEnd      PR            10I 0 extproc('inflateEnd')                Termin. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+      **************************************************************************
+      *                        Advanced function prototypes
+      **************************************************************************
+      *
+     D deflateInit2    PR            10I 0 extproc('deflateInit2_')             Init. compression
+     D  strm                               like(z_stream)                       Compression stream
+     D  level                        10I 0 value                                Compression level
+     D  method                       10I 0 value                                Compression method
+     D  windowBits                   10I 0 value                                log2(window size)
+     D  memLevel                     10I 0 value                                Mem/cmpress tradeoff
+     D  strategy                     10I 0 value                                Compression strategy
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D deflateSetDictionary...
+     D                 PR            10I 0 extproc('deflateSetDictionary')      Init. dictionary
+     D  strm                               like(z_stream)                       Compression stream
+     D  dictionary                65535    const options(*varsize)              Dictionary bytes
+     D  dictLength                   10U 0 value                                Dictionary length
+      *
+     D deflateCopy     PR            10I 0 extproc('deflateCopy')               Compress strm 2 strm
+     D  dest                               like(z_stream)                       Destination stream
+     D  source                             like(z_stream)                       Source stream
+      *
+     D deflateReset    PR            10I 0 extproc('deflateReset')              End and init. stream
+     D  strm                               like(z_stream)                       Compression stream
+      *
+     D deflateParams   PR            10I 0 extproc('deflateParams')             Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  level                        10I 0 value                                Compression level
+     D  strategy                     10I 0 value                                Compression strategy
+      *
+     D deflateTune     PR            10I 0 extproc('deflateTune')
+     D  strm                               like(z_stream)                       Compression stream
+     D  good                         10I 0 value
+     D  lazy                         10I 0 value
+     D  nice                         10I 0 value
+     D  chain                        10I 0 value
+      *
+     D deflateBound    PR            10U 0 extproc('deflateBound')              Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  sourcelen                    10U 0 value                                Compression level
+      *
+     D deflatePending  PR            10I 0 extproc('deflatePending')            Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  pending                      10U 0                                      Pending bytes
+     D  bits                         10I 0                                      Pending bits
+      *
+     D deflatePrime    PR            10I 0 extproc('deflatePrime')              Change level & strat
+     D  strm                               like(z_stream)                       Compression stream
+     D  bits                         10I 0 value                                # of bits to insert
+     D  value                        10I 0 value                                Bits to insert
+      *
+     D inflateInit2    PR            10I 0 extproc('inflateInit2_')             Init. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+     D  windowBits                   10I 0 value                                log2(window size)
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D inflateSetDictionary...
+     D                 PR            10I 0 extproc('inflateSetDictionary')      Init. dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    const options(*varsize)              Dictionary bytes
+     D  dictLength                   10U 0 value                                Dictionary length
+      *
+     D inflateGetDictionary...
+     D                 PR            10I 0 extproc('inflateGetDictionary')      Get dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    options(*varsize)                    Dictionary bytes
+     D  dictLength                   10U 0                                      Dictionary length
+      *
+     D deflateGetDictionary...
+     D                 PR            10I 0 extproc('deflateGetDictionary')      Get dictionary
+     D  strm                               like(z_stream)                       Expansion stream
+     D  dictionary                65535    options(*varsize)                    Dictionary bytes
+     D  dictLength                   10U 0                                      Dictionary length
+      *
+     D inflateSync     PR            10I 0 extproc('inflateSync')               Sync. expansion
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateCopy     PR            10I 0 extproc('inflateCopy')
+     D  dest                               like(z_stream)                       Destination stream
+     D  source                             like(z_stream)                       Source stream
+      *
+     D inflateReset    PR            10I 0 extproc('inflateReset')              End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateReset2   PR            10I 0 extproc('inflateReset2')             End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+     D  windowBits                   10I 0 value                                Log2(buffer size)
+      *
+     D inflatePrime    PR            10I 0 extproc('inflatePrime')              Insert bits
+     D  strm                               like(z_stream)                       Expansion stream
+     D  bits                         10I 0 value                                Bit count
+     D  value                        10I 0 value                                Bits to insert
+      *
+     D inflateMark     PR            10I 0 extproc('inflateMark')               Get inflate info
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateCodesUsed...
+                       PR            20U 0 extproc('inflateCodesUsed')
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D inflateValidate...
+                       PR            20U 0 extproc('inflateValidate')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  check                        10I 0 value
+      *
+     D inflateGetHeader...
+                       PR            10U 0 extproc('inflateGetHeader')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  head                               like(gz_headerp)
+      *
+     D deflateSetHeader...
+                       PR            10U 0 extproc('deflateSetHeader')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  head                               like(gz_headerp)
+      *
+     D inflateBackInit...
+     D                 PR            10I 0 extproc('inflateBackInit_')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  windowBits                   10I 0 value                                Log2(buffer size)
+     D  window                    65535    options(*varsize)                    Buffer
+     D  version                        *   value options(*string)               Version string
+     D  stream_size                  10i 0 value                                Stream struct. size
+      *
+     D inflateBack     PR            10I 0 extproc('inflateBack')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  in                             *   value procptr                        Input function
+     D  in_desc                        *   value                                Input descriptor
+     D  out                            *   value procptr                        Output function
+     D  out_desc                       *   value                                Output descriptor
+      *
+     D inflateBackEnd  PR            10I 0 extproc('inflateBackEnd')
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D zlibCompileFlags...
+     D                 PR            10U 0 extproc('zlibCompileFlags')
+      *
+      **************************************************************************
+      *                        Checksum function prototypes
+      **************************************************************************
+      *
+     D adler32         PR            10U 0 extproc('adler32')                   New checksum
+     D  adler                        10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          10U 0 value                                Buffer length
+      *
+     D adler32_combine...
+                       PR            10U 0 extproc('adler32_combine')           New checksum
+     D  adler1                       10U 0 value                                Old checksum
+     D  adler2                       10U 0 value                                Old checksum
+     D  len2                         20U 0 value                                Buffer length
+      *
+     D adler32_z       PR            10U 0 extproc('adler32_z')                 New checksum
+     D  adler                        10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          20U 0 value                                Buffer length
+      *
+     D crc32           PR            10U 0 extproc('crc32')                     New checksum
+     D  crc                          10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          10U 0 value                                Buffer length
+      *
+     D crc32_combine...
+                       PR            10U 0 extproc('crc32_combine')             New checksum
+     D  crc1                         10U 0 value                                Old checksum
+     D  crc2                         10U 0 value                                Old checksum
+     D  len2                         20U 0 value                                Buffer length
+      *
+     D crc32_z         PR            10U 0 extproc('crc32_z')                   New checksum
+     D  crc                          10U 0 value                                Old checksum
+     D  buf                       65535    const options(*varsize)              Bytes to accumulate
+     D  len                          20U 0 value                                Buffer length
+      *
+      **************************************************************************
+      *                     Miscellaneous function prototypes
+      **************************************************************************
+      *
+     D zError          PR              *   extproc('zError')                    Error string
+     D  err                          10I 0 value                                Error code
+      *
+     D inflateSyncPoint...
+     D                 PR            10I 0 extproc('inflateSyncPoint')
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D get_crc_table   PR              *   extproc('get_crc_table')             Ptr to ulongs
+      *
+     D inflateUndermine...
+     D                 PR            10I 0 extproc('inflateUndermine')
+     D  strm                               like(z_stream)                       Expansion stream
+     D  arg                          10I 0 value                                Error code
+      *
+     D inflateResetKeep...
+     D                 PR            10I 0 extproc('inflateResetKeep')          End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+     D deflateResetKeep...
+     D                 PR            10I 0 extproc('deflateResetKeep')          End and init. stream
+     D  strm                               like(z_stream)                       Expansion stream
+      *
+      /endif
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/qnx/package.qpg b/src/boost/libs/beast/test/extern/zlib-1.2.11/qnx/package.qpg
new file mode 100644
index 000000000..31e8e90db
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/qnx/package.qpg
@@ -0,0 +1,141 @@
+<QPG:Generation>
+   <QPG:Options>
+      <QPG:User unattended="no" verbosity="2" listfiles="yes"/>
+      <QPG:Defaults type="qnx_package"/>
+      <QPG:Source></QPG:Source>
+      <QPG:Release number="+"/>
+      <QPG:Build></QPG:Build>
+      <QPG:FileSorting strip="yes"/>
+      <QPG:Package targets="combine"/>
+      <QPG:Repository generate="yes"/>
+      <QPG:FinalDir></QPG:FinalDir>
+      <QPG:Cleanup></QPG:Cleanup>
+   </QPG:Options>
+
+   <QPG:Responsible>
+      <QPG:Company></QPG:Company>
+      <QPG:Department></QPG:Department>
+      <QPG:Group></QPG:Group>
+      <QPG:Team></QPG:Team>
+      <QPG:Employee></QPG:Employee>
+      <QPG:EmailAddress></QPG:EmailAddress>
+   </QPG:Responsible>
+
+   <QPG:Values>
+      <QPG:Files>
+         <QPG:Add file="../zconf.h" install="/opt/include/" user="root:sys" permission="644"/>
+         <QPG:Add file="../zlib.h" install="/opt/include/" user="root:sys" permission="644"/>
+         <QPG:Add file="../libz.so.1.2.11" install="/opt/lib/" user="root:bin" permission="644"/>
+         <QPG:Add file="libz.so" install="/opt/lib/" component="dev" filetype="symlink" linkto="libz.so.1.2.11"/>
+         <QPG:Add file="libz.so.1" install="/opt/lib/" filetype="symlink" linkto="libz.so.1.2.11"/>
+         <QPG:Add file="../libz.so.1.2.11" install="/opt/lib/" component="slib"/>
+      </QPG:Files>
+
+      <QPG:PackageFilter>
+         <QPM:PackageManifest>
+            <QPM:PackageDescription>
+               <QPM:PackageType>Library</QPM:PackageType>
+               <QPM:PackageReleaseNotes></QPM:PackageReleaseNotes>
+               <QPM:PackageReleaseUrgency>Medium</QPM:PackageReleaseUrgency>
+               <QPM:PackageRepository></QPM:PackageRepository>
+               <QPM:FileVersion>2.0</QPM:FileVersion>
+            </QPM:PackageDescription>
+
+            <QPM:ProductDescription>
+               <QPM:ProductName>zlib</QPM:ProductName>
+               <QPM:ProductIdentifier>zlib</QPM:ProductIdentifier>
+               <QPM:ProductEmail>alain.bonnefoy@icbt.com</QPM:ProductEmail>
+               <QPM:VendorName>Public</QPM:VendorName>
+               <QPM:VendorInstallName>public</QPM:VendorInstallName>
+               <QPM:VendorURL>www.gzip.org/zlib</QPM:VendorURL>
+               <QPM:VendorEmbedURL></QPM:VendorEmbedURL>
+               <QPM:VendorEmail></QPM:VendorEmail>
+               <QPM:AuthorName>Jean-Loup Gailly,Mark Adler</QPM:AuthorName>
+               <QPM:AuthorURL>www.gzip.org/zlib</QPM:AuthorURL>
+               <QPM:AuthorEmbedURL></QPM:AuthorEmbedURL>
+               <QPM:AuthorEmail>zlib@gzip.org</QPM:AuthorEmail>
+               <QPM:ProductIconSmall></QPM:ProductIconSmall>
+               <QPM:ProductIconLarge></QPM:ProductIconLarge>
+               <QPM:ProductDescriptionShort>A massively spiffy yet delicately unobtrusive compression library.</QPM:ProductDescriptionShort>
+               <QPM:ProductDescriptionLong>zlib is designed to be a free, general-purpose, legally unencumbered, lossless data compression library for use on virtually any computer hardware and operating system.</QPM:ProductDescriptionLong>
+               <QPM:ProductDescriptionURL>http://www.gzip.org/zlib</QPM:ProductDescriptionURL>
+               <QPM:ProductDescriptionEmbedURL></QPM:ProductDescriptionEmbedURL>
+            </QPM:ProductDescription>
+
+            <QPM:ReleaseDescription>
+               <QPM:ReleaseVersion>1.2.11</QPM:ReleaseVersion>
+               <QPM:ReleaseUrgency>Medium</QPM:ReleaseUrgency>
+               <QPM:ReleaseStability>Stable</QPM:ReleaseStability>
+               <QPM:ReleaseNoteMinor></QPM:ReleaseNoteMinor>
+               <QPM:ReleaseNoteMajor></QPM:ReleaseNoteMajor>
+               <QPM:ExcludeCountries>
+                  <QPM:Country></QPM:Country>
+               </QPM:ExcludeCountries>
+
+               <QPM:ReleaseCopyright>No License</QPM:ReleaseCopyright>
+            </QPM:ReleaseDescription>
+
+            <QPM:ContentDescription>
+               <QPM:ContentTopic xmlmultiple="true">Software Development/Libraries and Extensions/C Libraries</QPM:ContentTopic>
+               <QPM:ContentKeyword>zlib,compression</QPM:ContentKeyword>
+               <QPM:TargetOS>qnx6</QPM:TargetOS>
+               <QPM:HostOS>qnx6</QPM:HostOS>
+               <QPM:DisplayEnvironment xmlmultiple="true">None</QPM:DisplayEnvironment>
+               <QPM:TargetAudience xmlmultiple="true">Developer</QPM:TargetAudience>
+            </QPM:ContentDescription>
+         </QPM:PackageManifest>
+      </QPG:PackageFilter>
+
+      <QPG:PackageFilter proc="none" target="none">
+         <QPM:PackageManifest>
+            <QPM:ProductInstallationDependencies>
+               <QPM:ProductRequirements></QPM:ProductRequirements>
+            </QPM:ProductInstallationDependencies>
+
+            <QPM:ProductInstallationProcedure>
+               <QPM:Script xmlmultiple="true">
+                  <QPM:ScriptName></QPM:ScriptName>
+                  <QPM:ScriptType>Install</QPM:ScriptType>
+                  <QPM:ScriptTiming>Post</QPM:ScriptTiming>
+                  <QPM:ScriptBlocking>No</QPM:ScriptBlocking>
+                  <QPM:ScriptResult>Ignore</QPM:ScriptResult>
+                  <QPM:ShortDescription></QPM:ShortDescription>
+                  <QPM:UseBinaries>No</QPM:UseBinaries>
+                  <QPM:Priority>Optional</QPM:Priority>
+               </QPM:Script>
+            </QPM:ProductInstallationProcedure>
+         </QPM:PackageManifest>
+
+         <QPM:Launch>
+         </QPM:Launch>
+      </QPG:PackageFilter>
+
+      <QPG:PackageFilter type="core" component="none">
+         <QPM:PackageManifest>
+            <QPM:ProductInstallationProcedure>
+	       <QPM:OrderDependency xmlmultiple="true">
+	          <QPM:Order>InstallOver</QPM:Order>
+	          <QPM:Product>zlib</QPM:Product>
+	       </QPM:OrderDependency>
+            </QPM:ProductInstallationProcedure>
+         </QPM:PackageManifest>
+
+         <QPM:Launch>
+         </QPM:Launch>
+      </QPG:PackageFilter>
+
+      <QPG:PackageFilter type="core" component="dev">
+         <QPM:PackageManifest>
+            <QPM:ProductInstallationProcedure>
+	       <QPM:OrderDependency xmlmultiple="true">
+	          <QPM:Order>InstallOver</QPM:Order>
+	          <QPM:Product>zlib-dev</QPM:Product>
+	       </QPM:OrderDependency>
+            </QPM:ProductInstallationProcedure>
+         </QPM:PackageManifest>
+
+         <QPM:Launch>
+         </QPM:Launch>
+      </QPG:PackageFilter>
+   </QPG:Values>
+</QPG:Generation>
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/test/example.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/test/example.c
new file mode 100644
index 000000000..eee17ce7c
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/test/example.c
@@ -0,0 +1,602 @@
+/* example.c -- usage example of the zlib compression library
+ * Copyright (C) 1995-2006, 2011, 2016 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zlib.h"
+#include <stdio.h>
+
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+
+#if defined(VMS) || defined(RISCOS)
+#  define TESTFILE "foo-gz"
+#else
+#  define TESTFILE "foo.gz"
+#endif
+
+#define CHECK_ERR(err, msg) { \
+    if (err != Z_OK) { \
+        fprintf(stderr, "%s error: %d\n", msg, err); \
+        exit(1); \
+    } \
+}
+
+static z_const char hello[] = "hello, hello!";
+/* "hello world" would be more standard, but the repeated "hello"
+ * stresses the compression code better, sorry...
+ */
+
+static const char dictionary[] = "hello";
+static uLong dictId;    /* Adler32 value of the dictionary */
+
+void test_deflate       OF((Byte *compr, uLong comprLen));
+void test_inflate       OF((Byte *compr, uLong comprLen,
+                            Byte *uncompr, uLong uncomprLen));
+void test_large_deflate OF((Byte *compr, uLong comprLen,
+                            Byte *uncompr, uLong uncomprLen));
+void test_large_inflate OF((Byte *compr, uLong comprLen,
+                            Byte *uncompr, uLong uncomprLen));
+void test_flush         OF((Byte *compr, uLong *comprLen));
+void test_sync          OF((Byte *compr, uLong comprLen,
+                            Byte *uncompr, uLong uncomprLen));
+void test_dict_deflate  OF((Byte *compr, uLong comprLen));
+void test_dict_inflate  OF((Byte *compr, uLong comprLen,
+                            Byte *uncompr, uLong uncomprLen));
+int  main               OF((int argc, char *argv[]));
+
+
+#ifdef Z_SOLO
+
+void *myalloc OF((void *, unsigned, unsigned));
+void myfree OF((void *, void *));
+
+void *myalloc(q, n, m)
+    void *q;
+    unsigned n, m;
+{
+    (void)q;
+    return calloc(n, m);
+}
+
+void myfree(void *q, void *p)
+{
+    (void)q;
+    free(p);
+}
+
+static alloc_func zalloc = myalloc;
+static free_func zfree = myfree;
+
+#else /* !Z_SOLO */
+
+static alloc_func zalloc = (alloc_func)0;
+static free_func zfree = (free_func)0;
+
+void test_compress      OF((Byte *compr, uLong comprLen,
+                            Byte *uncompr, uLong uncomprLen));
+void test_gzio          OF((const char *fname,
+                            Byte *uncompr, uLong uncomprLen));
+
+/* ===========================================================================
+ * Test compress() and uncompress()
+ */
+void test_compress(compr, comprLen, uncompr, uncomprLen)
+    Byte *compr, *uncompr;
+    uLong comprLen, uncomprLen;
+{
+    int err;
+    uLong len = (uLong)strlen(hello)+1;
+
+    err = compress(compr, &comprLen, (const Bytef*)hello, len);
+    CHECK_ERR(err, "compress");
+
+    strcpy((char*)uncompr, "garbage");
+
+    err = uncompress(uncompr, &uncomprLen, compr, comprLen);
+    CHECK_ERR(err, "uncompress");
+
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad uncompress\n");
+        exit(1);
+    } else {
+        printf("uncompress(): %s\n", (char *)uncompr);
+    }
+}
+
+/* ===========================================================================
+ * Test read/write of .gz files
+ */
+void test_gzio(fname, uncompr, uncomprLen)
+    const char *fname; /* compressed file name */
+    Byte *uncompr;
+    uLong uncomprLen;
+{
+#ifdef NO_GZCOMPRESS
+    fprintf(stderr, "NO_GZCOMPRESS -- gz* functions cannot compress\n");
+#else
+    int err;
+    int len = (int)strlen(hello)+1;
+    gzFile file;
+    z_off_t pos;
+
+    file = gzopen(fname, "wb");
+    if (file == NULL) {
+        fprintf(stderr, "gzopen error\n");
+        exit(1);
+    }
+    gzputc(file, 'h');
+    if (gzputs(file, "ello") != 4) {
+        fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    if (gzprintf(file, ", %s!", "hello") != 8) {
+        fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    gzseek(file, 1L, SEEK_CUR); /* add one zero byte */
+    gzclose(file);
+
+    file = gzopen(fname, "rb");
+    if (file == NULL) {
+        fprintf(stderr, "gzopen error\n");
+        exit(1);
+    }
+    strcpy((char*)uncompr, "garbage");
+
+    if (gzread(file, uncompr, (unsigned)uncomprLen) != len) {
+        fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad gzread: %s\n", (char*)uncompr);
+        exit(1);
+    } else {
+        printf("gzread(): %s\n", (char*)uncompr);
+    }
+
+    pos = gzseek(file, -8L, SEEK_CUR);
+    if (pos != 6 || gztell(file) != pos) {
+        fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n",
+                (long)pos, (long)gztell(file));
+        exit(1);
+    }
+
+    if (gzgetc(file) != ' ') {
+        fprintf(stderr, "gzgetc error\n");
+        exit(1);
+    }
+
+    if (gzungetc(' ', file) != ' ') {
+        fprintf(stderr, "gzungetc error\n");
+        exit(1);
+    }
+
+    gzgets(file, (char*)uncompr, (int)uncomprLen);
+    if (strlen((char*)uncompr) != 7) { /* " hello!" */
+        fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
+        exit(1);
+    }
+    if (strcmp((char*)uncompr, hello + 6)) {
+        fprintf(stderr, "bad gzgets after gzseek\n");
+        exit(1);
+    } else {
+        printf("gzgets() after gzseek: %s\n", (char*)uncompr);
+    }
+
+    gzclose(file);
+#endif
+}
+
+#endif /* Z_SOLO */
+
+/* ===========================================================================
+ * Test deflate() with small buffers
+ */
+void test_deflate(compr, comprLen)
+    Byte *compr;
+    uLong comprLen;
+{
+    z_stream c_stream; /* compression stream */
+    int err;
+    uLong len = (uLong)strlen(hello)+1;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
+    CHECK_ERR(err, "deflateInit");
+
+    c_stream.next_in  = (z_const unsigned char *)hello;
+    c_stream.next_out = compr;
+
+    while (c_stream.total_in != len && c_stream.total_out < comprLen) {
+        c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */
+        err = deflate(&c_stream, Z_NO_FLUSH);
+        CHECK_ERR(err, "deflate");
+    }
+    /* Finish the stream, still forcing small buffers: */
+    for (;;) {
+        c_stream.avail_out = 1;
+        err = deflate(&c_stream, Z_FINISH);
+        if (err == Z_STREAM_END) break;
+        CHECK_ERR(err, "deflate");
+    }
+
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+}
+
+/* ===========================================================================
+ * Test inflate() with small buffers
+ */
+void test_inflate(compr, comprLen, uncompr, uncomprLen)
+    Byte *compr, *uncompr;
+    uLong comprLen, uncomprLen;
+{
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = 0;
+    d_stream.next_out = uncompr;
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) {
+        d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) break;
+        CHECK_ERR(err, "inflate");
+    }
+
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad inflate\n");
+        exit(1);
+    } else {
+        printf("inflate(): %s\n", (char *)uncompr);
+    }
+}
+
+/* ===========================================================================
+ * Test deflate() with large buffers and dynamic change of compression level
+ */
+void test_large_deflate(compr, comprLen, uncompr, uncomprLen)
+    Byte *compr, *uncompr;
+    uLong comprLen, uncomprLen;
+{
+    z_stream c_stream; /* compression stream */
+    int err;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_BEST_SPEED);
+    CHECK_ERR(err, "deflateInit");
+
+    c_stream.next_out = compr;
+    c_stream.avail_out = (uInt)comprLen;
+
+    /* At this point, uncompr is still mostly zeroes, so it should compress
+     * very well:
+     */
+    c_stream.next_in = uncompr;
+    c_stream.avail_in = (uInt)uncomprLen;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "deflate");
+    if (c_stream.avail_in != 0) {
+        fprintf(stderr, "deflate not greedy\n");
+        exit(1);
+    }
+
+    /* Feed in already compressed data and switch to no compression: */
+    deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY);
+    c_stream.next_in = compr;
+    c_stream.avail_in = (uInt)comprLen/2;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "deflate");
+
+    /* Switch back to compressing mode: */
+    deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED);
+    c_stream.next_in = uncompr;
+    c_stream.avail_in = (uInt)uncomprLen;
+    err = deflate(&c_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "deflate");
+
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        fprintf(stderr, "deflate should report Z_STREAM_END\n");
+        exit(1);
+    }
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+}
+
+/* ===========================================================================
+ * Test inflate() with large buffers
+ */
+void test_large_inflate(compr, comprLen, uncompr, uncomprLen)
+    Byte *compr, *uncompr;
+    uLong comprLen, uncomprLen;
+{
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = (uInt)comprLen;
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    for (;;) {
+        d_stream.next_out = uncompr;            /* discard the output */
+        d_stream.avail_out = (uInt)uncomprLen;
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) break;
+        CHECK_ERR(err, "large inflate");
+    }
+
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    if (d_stream.total_out != 2*uncomprLen + comprLen/2) {
+        fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out);
+        exit(1);
+    } else {
+        printf("large_inflate(): OK\n");
+    }
+}
+
+/* ===========================================================================
+ * Test deflate() with full flush
+ */
+void test_flush(compr, comprLen)
+    Byte *compr;
+    uLong *comprLen;
+{
+    z_stream c_stream; /* compression stream */
+    int err;
+    uInt len = (uInt)strlen(hello)+1;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
+    CHECK_ERR(err, "deflateInit");
+
+    c_stream.next_in  = (z_const unsigned char *)hello;
+    c_stream.next_out = compr;
+    c_stream.avail_in = 3;
+    c_stream.avail_out = (uInt)*comprLen;
+    err = deflate(&c_stream, Z_FULL_FLUSH);
+    CHECK_ERR(err, "deflate");
+
+    compr[3]++; /* force an error in first compressed block */
+    c_stream.avail_in = len - 3;
+
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        CHECK_ERR(err, "deflate");
+    }
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+
+    *comprLen = c_stream.total_out;
+}
+
+/* ===========================================================================
+ * Test inflateSync()
+ */
+void test_sync(compr, comprLen, uncompr, uncomprLen)
+    Byte *compr, *uncompr;
+    uLong comprLen, uncomprLen;
+{
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = 2; /* just read the zlib header */
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    d_stream.next_out = uncompr;
+    d_stream.avail_out = (uInt)uncomprLen;
+
+    err = inflate(&d_stream, Z_NO_FLUSH);
+    CHECK_ERR(err, "inflate");
+
+    d_stream.avail_in = (uInt)comprLen-2;   /* read all compressed data */
+    err = inflateSync(&d_stream);           /* but skip the damaged part */
+    CHECK_ERR(err, "inflateSync");
+
+    err = inflate(&d_stream, Z_FINISH);
+    if (err != Z_DATA_ERROR) {
+        fprintf(stderr, "inflate should report DATA_ERROR\n");
+        /* Because of incorrect adler32 */
+        exit(1);
+    }
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    printf("after inflateSync(): hel%s\n", (char *)uncompr);
+}
+
+/* ===========================================================================
+ * Test deflate() with preset dictionary
+ */
+void test_dict_deflate(compr, comprLen)
+    Byte *compr;
+    uLong comprLen;
+{
+    z_stream c_stream; /* compression stream */
+    int err;
+
+    c_stream.zalloc = zalloc;
+    c_stream.zfree = zfree;
+    c_stream.opaque = (voidpf)0;
+
+    err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
+    CHECK_ERR(err, "deflateInit");
+
+    err = deflateSetDictionary(&c_stream,
+                (const Bytef*)dictionary, (int)sizeof(dictionary));
+    CHECK_ERR(err, "deflateSetDictionary");
+
+    dictId = c_stream.adler;
+    c_stream.next_out = compr;
+    c_stream.avail_out = (uInt)comprLen;
+
+    c_stream.next_in = (z_const unsigned char *)hello;
+    c_stream.avail_in = (uInt)strlen(hello)+1;
+
+    err = deflate(&c_stream, Z_FINISH);
+    if (err != Z_STREAM_END) {
+        fprintf(stderr, "deflate should report Z_STREAM_END\n");
+        exit(1);
+    }
+    err = deflateEnd(&c_stream);
+    CHECK_ERR(err, "deflateEnd");
+}
+
+/* ===========================================================================
+ * Test inflate() with a preset dictionary
+ */
+void test_dict_inflate(compr, comprLen, uncompr, uncomprLen)
+    Byte *compr, *uncompr;
+    uLong comprLen, uncomprLen;
+{
+    int err;
+    z_stream d_stream; /* decompression stream */
+
+    strcpy((char*)uncompr, "garbage");
+
+    d_stream.zalloc = zalloc;
+    d_stream.zfree = zfree;
+    d_stream.opaque = (voidpf)0;
+
+    d_stream.next_in  = compr;
+    d_stream.avail_in = (uInt)comprLen;
+
+    err = inflateInit(&d_stream);
+    CHECK_ERR(err, "inflateInit");
+
+    d_stream.next_out = uncompr;
+    d_stream.avail_out = (uInt)uncomprLen;
+
+    for (;;) {
+        err = inflate(&d_stream, Z_NO_FLUSH);
+        if (err == Z_STREAM_END) break;
+        if (err == Z_NEED_DICT) {
+            if (d_stream.adler != dictId) {
+                fprintf(stderr, "unexpected dictionary");
+                exit(1);
+            }
+            err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
+                                       (int)sizeof(dictionary));
+        }
+        CHECK_ERR(err, "inflate with dict");
+    }
+
+    err = inflateEnd(&d_stream);
+    CHECK_ERR(err, "inflateEnd");
+
+    if (strcmp((char*)uncompr, hello)) {
+        fprintf(stderr, "bad inflate with dict\n");
+        exit(1);
+    } else {
+        printf("inflate with dictionary: %s\n", (char *)uncompr);
+    }
+}
+
+/* ===========================================================================
+ * Usage:  example [output.gz  [input.gz]]
+ */
+
+int main(argc, argv)
+    int argc;
+    char *argv[];
+{
+    Byte *compr, *uncompr;
+    uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */
+    uLong uncomprLen = comprLen;
+    static const char* myVersion = ZLIB_VERSION;
+
+    if (zlibVersion()[0] != myVersion[0]) {
+        fprintf(stderr, "incompatible zlib version\n");
+        exit(1);
+
+    } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) {
+        fprintf(stderr, "warning: different zlib version\n");
+    }
+
+    printf("zlib version %s = 0x%04x, compile flags = 0x%lx\n",
+            ZLIB_VERSION, ZLIB_VERNUM, zlibCompileFlags());
+
+    compr    = (Byte*)calloc((uInt)comprLen, 1);
+    uncompr  = (Byte*)calloc((uInt)uncomprLen, 1);
+    /* compr and uncompr are cleared to avoid reading uninitialized
+     * data and to ensure that uncompr compresses well.
+     */
+    if (compr == Z_NULL || uncompr == Z_NULL) {
+        printf("out of memory\n");
+        exit(1);
+    }
+
+#ifdef Z_SOLO
+    (void)argc;
+    (void)argv;
+#else
+    test_compress(compr, comprLen, uncompr, uncomprLen);
+
+    test_gzio((argc > 1 ? argv[1] : TESTFILE),
+              uncompr, uncomprLen);
+#endif
+
+    test_deflate(compr, comprLen);
+    test_inflate(compr, comprLen, uncompr, uncomprLen);
+
+    test_large_deflate(compr, comprLen, uncompr, uncomprLen);
+    test_large_inflate(compr, comprLen, uncompr, uncomprLen);
+
+    test_flush(compr, &comprLen);
+    test_sync(compr, comprLen, uncompr, uncomprLen);
+    comprLen = uncomprLen;
+
+    test_dict_deflate(compr, comprLen);
+    test_dict_inflate(compr, comprLen, uncompr, uncomprLen);
+
+    free(compr);
+    free(uncompr);
+
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/test/infcover.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/test/infcover.c
new file mode 100644
index 000000000..2be01646c
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/test/infcover.c
@@ -0,0 +1,671 @@
+/* infcover.c -- test zlib's inflate routines with full code coverage
+ * Copyright (C) 2011, 2016 Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* to use, do: ./configure --cover && make cover */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "zlib.h"
+
+/* get definition of internal structure so we can mess with it (see pull()),
+   and so we can call inflate_trees() (see cover5()) */
+#define ZLIB_INTERNAL
+#include "inftrees.h"
+#include "inflate.h"
+
+#define local static
+
+/* -- memory tracking routines -- */
+
+/*
+   These memory tracking routines are provided to zlib and track all of zlib's
+   allocations and deallocations, check for LIFO operations, keep a current
+   and high water mark of total bytes requested, optionally set a limit on the
+   total memory that can be allocated, and when done check for memory leaks.
+
+   They are used as follows:
+
+   z_stream strm;
+   mem_setup(&strm)         initializes the memory tracking and sets the
+                            zalloc, zfree, and opaque members of strm to use
+                            memory tracking for all zlib operations on strm
+   mem_limit(&strm, limit)  sets a limit on the total bytes requested -- a
+                            request that exceeds this limit will result in an
+                            allocation failure (returns NULL) -- setting the
+                            limit to zero means no limit, which is the default
+                            after mem_setup()
+   mem_used(&strm, "msg")   prints to stderr "msg" and the total bytes used
+   mem_high(&strm, "msg")   prints to stderr "msg" and the high water mark
+   mem_done(&strm, "msg")   ends memory tracking, releases all allocations
+                            for the tracking as well as leaked zlib blocks, if
+                            any.  If there was anything unusual, such as leaked
+                            blocks, non-FIFO frees, or frees of addresses not
+                            allocated, then "msg" and information about the
+                            problem is printed to stderr.  If everything is
+                            normal, nothing is printed. mem_done resets the
+                            strm members to Z_NULL to use the default memory
+                            allocation routines on the next zlib initialization
+                            using strm.
+ */
+
+/* these items are strung together in a linked list, one for each allocation */
+struct mem_item {
+    void *ptr;                  /* pointer to allocated memory */
+    size_t size;                /* requested size of allocation */
+    struct mem_item *next;      /* pointer to next item in list, or NULL */
+};
+
+/* this structure is at the root of the linked list, and tracks statistics */
+struct mem_zone {
+    struct mem_item *first;     /* pointer to first item in list, or NULL */
+    size_t total, highwater;    /* total allocations, and largest total */
+    size_t limit;               /* memory allocation limit, or 0 if no limit */
+    int notlifo, rogue;         /* counts of non-LIFO frees and rogue frees */
+};
+
+/* memory allocation routine to pass to zlib */
+local void *mem_alloc(void *mem, unsigned count, unsigned size)
+{
+    void *ptr;
+    struct mem_item *item;
+    struct mem_zone *zone = mem;
+    size_t len = count * (size_t)size;
+
+    /* induced allocation failure */
+    if (zone == NULL || (zone->limit && zone->total + len > zone->limit))
+        return NULL;
+
+    /* perform allocation using the standard library, fill memory with a
+       non-zero value to make sure that the code isn't depending on zeros */
+    ptr = malloc(len);
+    if (ptr == NULL)
+        return NULL;
+    memset(ptr, 0xa5, len);
+
+    /* create a new item for the list */
+    item = malloc(sizeof(struct mem_item));
+    if (item == NULL) {
+        free(ptr);
+        return NULL;
+    }
+    item->ptr = ptr;
+    item->size = len;
+
+    /* insert item at the beginning of the list */
+    item->next = zone->first;
+    zone->first = item;
+
+    /* update the statistics */
+    zone->total += item->size;
+    if (zone->total > zone->highwater)
+        zone->highwater = zone->total;
+
+    /* return the allocated memory */
+    return ptr;
+}
+
+/* memory free routine to pass to zlib */
+local void mem_free(void *mem, void *ptr)
+{
+    struct mem_item *item, *next;
+    struct mem_zone *zone = mem;
+
+    /* if no zone, just do a free */
+    if (zone == NULL) {
+        free(ptr);
+        return;
+    }
+
+    /* point next to the item that matches ptr, or NULL if not found -- remove
+       the item from the linked list if found */
+    next = zone->first;
+    if (next) {
+        if (next->ptr == ptr)
+            zone->first = next->next;   /* first one is it, remove from list */
+        else {
+            do {                        /* search the linked list */
+                item = next;
+                next = item->next;
+            } while (next != NULL && next->ptr != ptr);
+            if (next) {                 /* if found, remove from linked list */
+                item->next = next->next;
+                zone->notlifo++;        /* not a LIFO free */
+            }
+
+        }
+    }
+
+    /* if found, update the statistics and free the item */
+    if (next) {
+        zone->total -= next->size;
+        free(next);
+    }
+
+    /* if not found, update the rogue count */
+    else
+        zone->rogue++;
+
+    /* in any case, do the requested free with the standard library function */
+    free(ptr);
+}
+
+/* set up a controlled memory allocation space for monitoring, set the stream
+   parameters to the controlled routines, with opaque pointing to the space */
+local void mem_setup(z_stream *strm)
+{
+    struct mem_zone *zone;
+
+    zone = malloc(sizeof(struct mem_zone));
+    assert(zone != NULL);
+    zone->first = NULL;
+    zone->total = 0;
+    zone->highwater = 0;
+    zone->limit = 0;
+    zone->notlifo = 0;
+    zone->rogue = 0;
+    strm->opaque = zone;
+    strm->zalloc = mem_alloc;
+    strm->zfree = mem_free;
+}
+
+/* set a limit on the total memory allocation, or 0 to remove the limit */
+local void mem_limit(z_stream *strm, size_t limit)
+{
+    struct mem_zone *zone = strm->opaque;
+
+    zone->limit = limit;
+}
+
+/* show the current total requested allocations in bytes */
+local void mem_used(z_stream *strm, char *prefix)
+{
+    struct mem_zone *zone = strm->opaque;
+
+    fprintf(stderr, "%s: %lu allocated\n", prefix, zone->total);
+}
+
+/* show the high water allocation in bytes */
+local void mem_high(z_stream *strm, char *prefix)
+{
+    struct mem_zone *zone = strm->opaque;
+
+    fprintf(stderr, "%s: %lu high water mark\n", prefix, zone->highwater);
+}
+
+/* release the memory allocation zone -- if there are any surprises, notify */
+local void mem_done(z_stream *strm, char *prefix)
+{
+    int count = 0;
+    struct mem_item *item, *next;
+    struct mem_zone *zone = strm->opaque;
+
+    /* show high water mark */
+    mem_high(strm, prefix);
+
+    /* free leftover allocations and item structures, if any */
+    item = zone->first;
+    while (item != NULL) {
+        free(item->ptr);
+        next = item->next;
+        free(item);
+        item = next;
+        count++;
+    }
+
+    /* issue alerts about anything unexpected */
+    if (count || zone->total)
+        fprintf(stderr, "** %s: %lu bytes in %d blocks not freed\n",
+                prefix, zone->total, count);
+    if (zone->notlifo)
+        fprintf(stderr, "** %s: %d frees not LIFO\n", prefix, zone->notlifo);
+    if (zone->rogue)
+        fprintf(stderr, "** %s: %d frees not recognized\n",
+                prefix, zone->rogue);
+
+    /* free the zone and delete from the stream */
+    free(zone);
+    strm->opaque = Z_NULL;
+    strm->zalloc = Z_NULL;
+    strm->zfree = Z_NULL;
+}
+
+/* -- inflate test routines -- */
+
+/* Decode a hexadecimal string, set *len to length, in[] to the bytes.  This
+   decodes liberally, in that hex digits can be adjacent, in which case two in
+   a row writes a byte.  Or they can be delimited by any non-hex character,
+   where the delimiters are ignored except when a single hex digit is followed
+   by a delimiter, where that single digit writes a byte.  The returned data is
+   allocated and must eventually be freed.  NULL is returned if out of memory.
+   If the length is not needed, then len can be NULL. */
+local unsigned char *h2b(const char *hex, unsigned *len)
+{
+    unsigned char *in, *re;
+    unsigned next, val;
+
+    in = malloc((strlen(hex) + 1) >> 1);
+    if (in == NULL)
+        return NULL;
+    next = 0;
+    val = 1;
+    do {
+        if (*hex >= '0' && *hex <= '9')
+            val = (val << 4) + *hex - '0';
+        else if (*hex >= 'A' && *hex <= 'F')
+            val = (val << 4) + *hex - 'A' + 10;
+        else if (*hex >= 'a' && *hex <= 'f')
+            val = (val << 4) + *hex - 'a' + 10;
+        else if (val != 1 && val < 32)  /* one digit followed by delimiter */
+            val += 240;                 /* make it look like two digits */
+        if (val > 255) {                /* have two digits */
+            in[next++] = val & 0xff;    /* save the decoded byte */
+            val = 1;                    /* start over */
+        }
+    } while (*hex++);       /* go through the loop with the terminating null */
+    if (len != NULL)
+        *len = next;
+    re = realloc(in, next);
+    return re == NULL ? in : re;
+}
+
+/* generic inflate() run, where hex is the hexadecimal input data, what is the
+   text to include in an error message, step is how much input data to feed
+   inflate() on each call, or zero to feed it all, win is the window bits
+   parameter to inflateInit2(), len is the size of the output buffer, and err
+   is the error code expected from the first inflate() call (the second
+   inflate() call is expected to return Z_STREAM_END).  If win is 47, then
+   header information is collected with inflateGetHeader().  If a zlib stream
+   is looking for a dictionary, then an empty dictionary is provided.
+   inflate() is run until all of the input data is consumed. */
+local void inf(char *hex, char *what, unsigned step, int win, unsigned len,
+               int err)
+{
+    int ret;
+    unsigned have;
+    unsigned char *in, *out;
+    z_stream strm, copy;
+    gz_header head;
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, win);
+    if (ret != Z_OK) {
+        mem_done(&strm, what);
+        return;
+    }
+    out = malloc(len);                          assert(out != NULL);
+    if (win == 47) {
+        head.extra = out;
+        head.extra_max = len;
+        head.name = out;
+        head.name_max = len;
+        head.comment = out;
+        head.comm_max = len;
+        ret = inflateGetHeader(&strm, &head);   assert(ret == Z_OK);
+    }
+    in = h2b(hex, &have);                       assert(in != NULL);
+    if (step == 0 || step > have)
+        step = have;
+    strm.avail_in = step;
+    have -= step;
+    strm.next_in = in;
+    do {
+        strm.avail_out = len;
+        strm.next_out = out;
+        ret = inflate(&strm, Z_NO_FLUSH);       assert(err == 9 || ret == err);
+        if (ret != Z_OK && ret != Z_BUF_ERROR && ret != Z_NEED_DICT)
+            break;
+        if (ret == Z_NEED_DICT) {
+            ret = inflateSetDictionary(&strm, in, 1);
+                                                assert(ret == Z_DATA_ERROR);
+            mem_limit(&strm, 1);
+            ret = inflateSetDictionary(&strm, out, 0);
+                                                assert(ret == Z_MEM_ERROR);
+            mem_limit(&strm, 0);
+            ((struct inflate_state *)strm.state)->mode = DICT;
+            ret = inflateSetDictionary(&strm, out, 0);
+                                                assert(ret == Z_OK);
+            ret = inflate(&strm, Z_NO_FLUSH);   assert(ret == Z_BUF_ERROR);
+        }
+        ret = inflateCopy(&copy, &strm);        assert(ret == Z_OK);
+        ret = inflateEnd(&copy);                assert(ret == Z_OK);
+        err = 9;                        /* don't care next time around */
+        have += strm.avail_in;
+        strm.avail_in = step > have ? have : step;
+        have -= strm.avail_in;
+    } while (strm.avail_in);
+    free(in);
+    free(out);
+    ret = inflateReset2(&strm, -8);             assert(ret == Z_OK);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    mem_done(&strm, what);
+}
+
+/* cover all of the lines in inflate.c up to inflate() */
+local void cover_support(void)
+{
+    int ret;
+    z_stream strm;
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&strm);                   assert(ret == Z_OK);
+    mem_used(&strm, "inflate init");
+    ret = inflatePrime(&strm, 5, 31);           assert(ret == Z_OK);
+    ret = inflatePrime(&strm, -1, 0);           assert(ret == Z_OK);
+    ret = inflateSetDictionary(&strm, Z_NULL, 0);
+                                                assert(ret == Z_STREAM_ERROR);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    mem_done(&strm, "prime");
+
+    inf("63 0", "force window allocation", 0, -15, 1, Z_OK);
+    inf("63 18 5", "force window replacement", 0, -8, 259, Z_OK);
+    inf("63 18 68 30 d0 0 0", "force split window update", 4, -8, 259, Z_OK);
+    inf("3 0", "use fixed blocks", 0, -15, 1, Z_STREAM_END);
+    inf("", "bad window size", 0, 1, 0, Z_STREAM_ERROR);
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit_(&strm, ZLIB_VERSION - 1, (int)sizeof(z_stream));
+                                                assert(ret == Z_VERSION_ERROR);
+    mem_done(&strm, "wrong version");
+
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit(&strm);                   assert(ret == Z_OK);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    fputs("inflate built-in memory routines\n", stderr);
+}
+
+/* cover all inflate() header and trailer cases and code after inflate() */
+local void cover_wrap(void)
+{
+    int ret;
+    z_stream strm, copy;
+    unsigned char dict[257];
+
+    ret = inflate(Z_NULL, 0);                   assert(ret == Z_STREAM_ERROR);
+    ret = inflateEnd(Z_NULL);                   assert(ret == Z_STREAM_ERROR);
+    ret = inflateCopy(Z_NULL, Z_NULL);          assert(ret == Z_STREAM_ERROR);
+    fputs("inflate bad parameters\n", stderr);
+
+    inf("1f 8b 0 0", "bad gzip method", 0, 31, 0, Z_DATA_ERROR);
+    inf("1f 8b 8 80", "bad gzip flags", 0, 31, 0, Z_DATA_ERROR);
+    inf("77 85", "bad zlib method", 0, 15, 0, Z_DATA_ERROR);
+    inf("8 99", "set window size from header", 0, 0, 0, Z_OK);
+    inf("78 9c", "bad zlib window size", 0, 8, 0, Z_DATA_ERROR);
+    inf("78 9c 63 0 0 0 1 0 1", "check adler32", 0, 15, 1, Z_STREAM_END);
+    inf("1f 8b 8 1e 0 0 0 0 0 0 1 0 0 0 0 0 0", "bad header crc", 0, 47, 1,
+        Z_DATA_ERROR);
+    inf("1f 8b 8 2 0 0 0 0 0 0 1d 26 3 0 0 0 0 0 0 0 0 0", "check gzip length",
+        0, 47, 0, Z_STREAM_END);
+    inf("78 90", "bad zlib header check", 0, 47, 0, Z_DATA_ERROR);
+    inf("8 b8 0 0 0 1", "need dictionary", 0, 8, 0, Z_NEED_DICT);
+    inf("78 9c 63 0", "compute adler32", 0, 15, 1, Z_OK);
+
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, -8);
+    strm.avail_in = 2;
+    strm.next_in = (void *)"\x63";
+    strm.avail_out = 1;
+    strm.next_out = (void *)&ret;
+    mem_limit(&strm, 1);
+    ret = inflate(&strm, Z_NO_FLUSH);           assert(ret == Z_MEM_ERROR);
+    ret = inflate(&strm, Z_NO_FLUSH);           assert(ret == Z_MEM_ERROR);
+    mem_limit(&strm, 0);
+    memset(dict, 0, 257);
+    ret = inflateSetDictionary(&strm, dict, 257);
+                                                assert(ret == Z_OK);
+    mem_limit(&strm, (sizeof(struct inflate_state) << 1) + 256);
+    ret = inflatePrime(&strm, 16, 0);           assert(ret == Z_OK);
+    strm.avail_in = 2;
+    strm.next_in = (void *)"\x80";
+    ret = inflateSync(&strm);                   assert(ret == Z_DATA_ERROR);
+    ret = inflate(&strm, Z_NO_FLUSH);           assert(ret == Z_STREAM_ERROR);
+    strm.avail_in = 4;
+    strm.next_in = (void *)"\0\0\xff\xff";
+    ret = inflateSync(&strm);                   assert(ret == Z_OK);
+    (void)inflateSyncPoint(&strm);
+    ret = inflateCopy(&copy, &strm);            assert(ret == Z_MEM_ERROR);
+    mem_limit(&strm, 0);
+    ret = inflateUndermine(&strm, 1);           assert(ret == Z_DATA_ERROR);
+    (void)inflateMark(&strm);
+    ret = inflateEnd(&strm);                    assert(ret == Z_OK);
+    mem_done(&strm, "miscellaneous, force memory errors");
+}
+
+/* input and output functions for inflateBack() */
+local unsigned pull(void *desc, unsigned char **buf)
+{
+    static unsigned int next = 0;
+    static unsigned char dat[] = {0x63, 0, 2, 0};
+    struct inflate_state *state;
+
+    if (desc == Z_NULL) {
+        next = 0;
+        return 0;   /* no input (already provided at next_in) */
+    }
+    state = (void *)((z_stream *)desc)->state;
+    if (state != Z_NULL)
+        state->mode = SYNC;     /* force an otherwise impossible situation */
+    return next < sizeof(dat) ? (*buf = dat + next++, 1) : 0;
+}
+
+local int push(void *desc, unsigned char *buf, unsigned len)
+{
+    buf += len;
+    return desc != Z_NULL;      /* force error if desc not null */
+}
+
+/* cover inflateBack() up to common deflate data cases and after those */
+local void cover_back(void)
+{
+    int ret;
+    z_stream strm;
+    unsigned char win[32768];
+
+    ret = inflateBackInit_(Z_NULL, 0, win, 0, 0);
+                                                assert(ret == Z_VERSION_ERROR);
+    ret = inflateBackInit(Z_NULL, 0, win);      assert(ret == Z_STREAM_ERROR);
+    ret = inflateBack(Z_NULL, Z_NULL, Z_NULL, Z_NULL, Z_NULL);
+                                                assert(ret == Z_STREAM_ERROR);
+    ret = inflateBackEnd(Z_NULL);               assert(ret == Z_STREAM_ERROR);
+    fputs("inflateBack bad parameters\n", stderr);
+
+    mem_setup(&strm);
+    ret = inflateBackInit(&strm, 15, win);      assert(ret == Z_OK);
+    strm.avail_in = 2;
+    strm.next_in = (void *)"\x03";
+    ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL);
+                                                assert(ret == Z_STREAM_END);
+        /* force output error */
+    strm.avail_in = 3;
+    strm.next_in = (void *)"\x63\x00";
+    ret = inflateBack(&strm, pull, Z_NULL, push, &strm);
+                                                assert(ret == Z_BUF_ERROR);
+        /* force mode error by mucking with state */
+    ret = inflateBack(&strm, pull, &strm, push, Z_NULL);
+                                                assert(ret == Z_STREAM_ERROR);
+    ret = inflateBackEnd(&strm);                assert(ret == Z_OK);
+    mem_done(&strm, "inflateBack bad state");
+
+    ret = inflateBackInit(&strm, 15, win);      assert(ret == Z_OK);
+    ret = inflateBackEnd(&strm);                assert(ret == Z_OK);
+    fputs("inflateBack built-in memory routines\n", stderr);
+}
+
+/* do a raw inflate of data in hexadecimal with both inflate and inflateBack */
+local int try(char *hex, char *id, int err)
+{
+    int ret;
+    unsigned len, size;
+    unsigned char *in, *out, *win;
+    char *prefix;
+    z_stream strm;
+
+    /* convert to hex */
+    in = h2b(hex, &len);
+    assert(in != NULL);
+
+    /* allocate work areas */
+    size = len << 3;
+    out = malloc(size);
+    assert(out != NULL);
+    win = malloc(32768);
+    assert(win != NULL);
+    prefix = malloc(strlen(id) + 6);
+    assert(prefix != NULL);
+
+    /* first with inflate */
+    strcpy(prefix, id);
+    strcat(prefix, "-late");
+    mem_setup(&strm);
+    strm.avail_in = 0;
+    strm.next_in = Z_NULL;
+    ret = inflateInit2(&strm, err < 0 ? 47 : -15);
+    assert(ret == Z_OK);
+    strm.avail_in = len;
+    strm.next_in = in;
+    do {
+        strm.avail_out = size;
+        strm.next_out = out;
+        ret = inflate(&strm, Z_TREES);
+        assert(ret != Z_STREAM_ERROR && ret != Z_MEM_ERROR);
+        if (ret == Z_DATA_ERROR || ret == Z_NEED_DICT)
+            break;
+    } while (strm.avail_in || strm.avail_out == 0);
+    if (err) {
+        assert(ret == Z_DATA_ERROR);
+        assert(strcmp(id, strm.msg) == 0);
+    }
+    inflateEnd(&strm);
+    mem_done(&strm, prefix);
+
+    /* then with inflateBack */
+    if (err >= 0) {
+        strcpy(prefix, id);
+        strcat(prefix, "-back");
+        mem_setup(&strm);
+        ret = inflateBackInit(&strm, 15, win);
+        assert(ret == Z_OK);
+        strm.avail_in = len;
+        strm.next_in = in;
+        ret = inflateBack(&strm, pull, Z_NULL, push, Z_NULL);
+        assert(ret != Z_STREAM_ERROR);
+        if (err) {
+            assert(ret == Z_DATA_ERROR);
+            assert(strcmp(id, strm.msg) == 0);
+        }
+        inflateBackEnd(&strm);
+        mem_done(&strm, prefix);
+    }
+
+    /* clean up */
+    free(prefix);
+    free(win);
+    free(out);
+    free(in);
+    return ret;
+}
+
+/* cover deflate data cases in both inflate() and inflateBack() */
+local void cover_inflate(void)
+{
+    try("0 0 0 0 0", "invalid stored block lengths", 1);
+    try("3 0", "fixed", 0);
+    try("6", "invalid block type", 1);
+    try("1 1 0 fe ff 0", "stored", 0);
+    try("fc 0 0", "too many length or distance symbols", 1);
+    try("4 0 fe ff", "invalid code lengths set", 1);
+    try("4 0 24 49 0", "invalid bit length repeat", 1);
+    try("4 0 24 e9 ff ff", "invalid bit length repeat", 1);
+    try("4 0 24 e9 ff 6d", "invalid code -- missing end-of-block", 1);
+    try("4 80 49 92 24 49 92 24 71 ff ff 93 11 0",
+        "invalid literal/lengths set", 1);
+    try("4 80 49 92 24 49 92 24 f b4 ff ff c3 84", "invalid distances set", 1);
+    try("4 c0 81 8 0 0 0 0 20 7f eb b 0 0", "invalid literal/length code", 1);
+    try("2 7e ff ff", "invalid distance code", 1);
+    try("c c0 81 0 0 0 0 0 90 ff 6b 4 0", "invalid distance too far back", 1);
+
+    /* also trailer mismatch just in inflate() */
+    try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 1", "incorrect data check", -1);
+    try("1f 8b 8 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 1",
+        "incorrect length check", -1);
+    try("5 c0 21 d 0 0 0 80 b0 fe 6d 2f 91 6c", "pull 17", 0);
+    try("5 e0 81 91 24 cb b2 2c 49 e2 f 2e 8b 9a 47 56 9f fb fe ec d2 ff 1f",
+        "long code", 0);
+    try("ed c0 1 1 0 0 0 40 20 ff 57 1b 42 2c 4f", "length extra", 0);
+    try("ed cf c1 b1 2c 47 10 c4 30 fa 6f 35 1d 1 82 59 3d fb be 2e 2a fc f c",
+        "long distance and extra", 0);
+    try("ed c0 81 0 0 0 0 80 a0 fd a9 17 a9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 "
+        "0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6", "window end", 0);
+    inf("2 8 20 80 0 3 0", "inflate_fast TYPE return", 0, -15, 258,
+        Z_STREAM_END);
+    inf("63 18 5 40 c 0", "window wrap", 3, -8, 300, Z_OK);
+}
+
+/* cover remaining lines in inftrees.c */
+local void cover_trees(void)
+{
+    int ret;
+    unsigned bits;
+    unsigned short lens[16], work[16];
+    code *next, table[ENOUGH_DISTS];
+
+    /* we need to call inflate_table() directly in order to manifest not-
+       enough errors, since zlib insures that enough is always enough */
+    for (bits = 0; bits < 15; bits++)
+        lens[bits] = (unsigned short)(bits + 1);
+    lens[15] = 15;
+    next = table;
+    bits = 15;
+    ret = inflate_table(DISTS, lens, 16, &next, &bits, work);
+                                                assert(ret == 1);
+    next = table;
+    bits = 1;
+    ret = inflate_table(DISTS, lens, 16, &next, &bits, work);
+                                                assert(ret == 1);
+    fputs("inflate_table not enough errors\n", stderr);
+}
+
+/* cover remaining inffast.c decoding and window copying */
+local void cover_fast(void)
+{
+    inf("e5 e0 81 ad 6d cb b2 2c c9 01 1e 59 63 ae 7d ee fb 4d fd b5 35 41 68"
+        " ff 7f 0f 0 0 0", "fast length extra bits", 0, -8, 258, Z_DATA_ERROR);
+    inf("25 fd 81 b5 6d 59 b6 6a 49 ea af 35 6 34 eb 8c b9 f6 b9 1e ef 67 49"
+        " 50 fe ff ff 3f 0 0", "fast distance extra bits", 0, -8, 258,
+        Z_DATA_ERROR);
+    inf("3 7e 0 0 0 0 0", "fast invalid distance code", 0, -8, 258,
+        Z_DATA_ERROR);
+    inf("1b 7 0 0 0 0 0", "fast invalid literal/length code", 0, -8, 258,
+        Z_DATA_ERROR);
+    inf("d c7 1 ae eb 38 c 4 41 a0 87 72 de df fb 1f b8 36 b1 38 5d ff ff 0",
+        "fast 2nd level codes and too far back", 0, -8, 258, Z_DATA_ERROR);
+    inf("63 18 5 8c 10 8 0 0 0 0", "very common case", 0, -8, 259, Z_OK);
+    inf("63 60 60 18 c9 0 8 18 18 18 26 c0 28 0 29 0 0 0",
+        "contiguous and wrap around window", 6, -8, 259, Z_OK);
+    inf("63 0 3 0 0 0 0 0", "copy direct from output", 0, -8, 259,
+        Z_STREAM_END);
+}
+
+int main(void)
+{
+    fprintf(stderr, "%s\n", zlibVersion());
+    cover_support();
+    cover_wrap();
+    cover_back();
+    cover_inflate();
+    cover_trees();
+    cover_fast();
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/test/minigzip.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/test/minigzip.c
new file mode 100644
index 000000000..e22fb08c0
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/test/minigzip.c
@@ -0,0 +1,651 @@
+/* minigzip.c -- simulate gzip using the zlib compression library
+ * Copyright (C) 1995-2006, 2010, 2011, 2016 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ * minigzip is a minimal implementation of the gzip utility. This is
+ * only an example of using zlib and isn't meant to replace the
+ * full-featured gzip. No attempt is made to deal with file systems
+ * limiting names to 14 or 8+3 characters, etc... Error checking is
+ * very limited. So use minigzip only for testing; use gzip for the
+ * real thing. On MSDOS, use only on file names without extension
+ * or in pipe mode.
+ */
+
+/* @(#) $Id$ */
+
+#include "zlib.h"
+#include <stdio.h>
+
+#ifdef STDC
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+
+#ifdef USE_MMAP
+#  include <sys/types.h>
+#  include <sys/mman.h>
+#  include <sys/stat.h>
+#endif
+
+#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(__CYGWIN__)
+#  include <fcntl.h>
+#  include <io.h>
+#  ifdef UNDER_CE
+#    include <stdlib.h>
+#  endif
+#  define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+#else
+#  define SET_BINARY_MODE(file)
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#  define snprintf _snprintf
+#endif
+
+#ifdef VMS
+#  define unlink delete
+#  define GZ_SUFFIX "-gz"
+#endif
+#ifdef RISCOS
+#  define unlink remove
+#  define GZ_SUFFIX "-gz"
+#  define fileno(file) file->__file
+#endif
+#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+#  include <unix.h> /* for fileno */
+#endif
+
+#if !defined(Z_HAVE_UNISTD_H) && !defined(_LARGEFILE64_SOURCE)
+#ifndef WIN32 /* unlink already in stdio.h for WIN32 */
+  extern int unlink OF((const char *));
+#endif
+#endif
+
+#if defined(UNDER_CE)
+#  include <windows.h>
+#  define perror(s) pwinerror(s)
+
+/* Map the Windows error number in ERROR to a locale-dependent error
+   message string and return a pointer to it.  Typically, the values
+   for ERROR come from GetLastError.
+
+   The string pointed to shall not be modified by the application,
+   but may be overwritten by a subsequent call to strwinerror
+
+   The strwinerror function does not change the current setting
+   of GetLastError.  */
+
+static char *strwinerror (error)
+     DWORD error;
+{
+    static char buf[1024];
+
+    wchar_t *msgbuf;
+    DWORD lasterr = GetLastError();
+    DWORD chars = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
+        | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+        NULL,
+        error,
+        0, /* Default language */
+        (LPVOID)&msgbuf,
+        0,
+        NULL);
+    if (chars != 0) {
+        /* If there is an \r\n appended, zap it.  */
+        if (chars >= 2
+            && msgbuf[chars - 2] == '\r' && msgbuf[chars - 1] == '\n') {
+            chars -= 2;
+            msgbuf[chars] = 0;
+        }
+
+        if (chars > sizeof (buf) - 1) {
+            chars = sizeof (buf) - 1;
+            msgbuf[chars] = 0;
+        }
+
+        wcstombs(buf, msgbuf, chars + 1);
+        LocalFree(msgbuf);
+    }
+    else {
+        sprintf(buf, "unknown win32 error (%ld)", error);
+    }
+
+    SetLastError(lasterr);
+    return buf;
+}
+
+static void pwinerror (s)
+    const char *s;
+{
+    if (s && *s)
+        fprintf(stderr, "%s: %s\n", s, strwinerror(GetLastError ()));
+    else
+        fprintf(stderr, "%s\n", strwinerror(GetLastError ()));
+}
+
+#endif /* UNDER_CE */
+
+#ifndef GZ_SUFFIX
+#  define GZ_SUFFIX ".gz"
+#endif
+#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1)
+
+#define BUFLEN      16384
+#define MAX_NAME_LEN 1024
+
+#ifdef MAXSEG_64K
+#  define local static
+   /* Needed for systems with limitation on stack size. */
+#else
+#  define local
+#endif
+
+#ifdef Z_SOLO
+/* for Z_SOLO, create simplified gz* functions using deflate and inflate */
+
+#if defined(Z_HAVE_UNISTD_H) || defined(Z_LARGE)
+#  include <unistd.h>       /* for unlink() */
+#endif
+
+void *myalloc OF((void *, unsigned, unsigned));
+void myfree OF((void *, void *));
+
+void *myalloc(q, n, m)
+    void *q;
+    unsigned n, m;
+{
+    (void)q;
+    return calloc(n, m);
+}
+
+void myfree(q, p)
+    void *q, *p;
+{
+    (void)q;
+    free(p);
+}
+
+typedef struct gzFile_s {
+    FILE *file;
+    int write;
+    int err;
+    char *msg;
+    z_stream strm;
+} *gzFile;
+
+gzFile gzopen OF((const char *, const char *));
+gzFile gzdopen OF((int, const char *));
+gzFile gz_open OF((const char *, int, const char *));
+
+gzFile gzopen(path, mode)
+const char *path;
+const char *mode;
+{
+    return gz_open(path, -1, mode);
+}
+
+gzFile gzdopen(fd, mode)
+int fd;
+const char *mode;
+{
+    return gz_open(NULL, fd, mode);
+}
+
+gzFile gz_open(path, fd, mode)
+    const char *path;
+    int fd;
+    const char *mode;
+{
+    gzFile gz;
+    int ret;
+
+    gz = malloc(sizeof(struct gzFile_s));
+    if (gz == NULL)
+        return NULL;
+    gz->write = strchr(mode, 'w') != NULL;
+    gz->strm.zalloc = myalloc;
+    gz->strm.zfree = myfree;
+    gz->strm.opaque = Z_NULL;
+    if (gz->write)
+        ret = deflateInit2(&(gz->strm), -1, 8, 15 + 16, 8, 0);
+    else {
+        gz->strm.next_in = 0;
+        gz->strm.avail_in = Z_NULL;
+        ret = inflateInit2(&(gz->strm), 15 + 16);
+    }
+    if (ret != Z_OK) {
+        free(gz);
+        return NULL;
+    }
+    gz->file = path == NULL ? fdopen(fd, gz->write ? "wb" : "rb") :
+                              fopen(path, gz->write ? "wb" : "rb");
+    if (gz->file == NULL) {
+        gz->write ? deflateEnd(&(gz->strm)) : inflateEnd(&(gz->strm));
+        free(gz);
+        return NULL;
+    }
+    gz->err = 0;
+    gz->msg = "";
+    return gz;
+}
+
+int gzwrite OF((gzFile, const void *, unsigned));
+
+int gzwrite(gz, buf, len)
+    gzFile gz;
+    const void *buf;
+    unsigned len;
+{
+    z_stream *strm;
+    unsigned char out[BUFLEN];
+
+    if (gz == NULL || !gz->write)
+        return 0;
+    strm = &(gz->strm);
+    strm->next_in = (void *)buf;
+    strm->avail_in = len;
+    do {
+        strm->next_out = out;
+        strm->avail_out = BUFLEN;
+        (void)deflate(strm, Z_NO_FLUSH);
+        fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
+    } while (strm->avail_out == 0);
+    return len;
+}
+
+int gzread OF((gzFile, void *, unsigned));
+
+int gzread(gz, buf, len)
+    gzFile gz;
+    void *buf;
+    unsigned len;
+{
+    int ret;
+    unsigned got;
+    unsigned char in[1];
+    z_stream *strm;
+
+    if (gz == NULL || gz->write)
+        return 0;
+    if (gz->err)
+        return 0;
+    strm = &(gz->strm);
+    strm->next_out = (void *)buf;
+    strm->avail_out = len;
+    do {
+        got = fread(in, 1, 1, gz->file);
+        if (got == 0)
+            break;
+        strm->next_in = in;
+        strm->avail_in = 1;
+        ret = inflate(strm, Z_NO_FLUSH);
+        if (ret == Z_DATA_ERROR) {
+            gz->err = Z_DATA_ERROR;
+            gz->msg = strm->msg;
+            return 0;
+        }
+        if (ret == Z_STREAM_END)
+            inflateReset(strm);
+    } while (strm->avail_out);
+    return len - strm->avail_out;
+}
+
+int gzclose OF((gzFile));
+
+int gzclose(gz)
+    gzFile gz;
+{
+    z_stream *strm;
+    unsigned char out[BUFLEN];
+
+    if (gz == NULL)
+        return Z_STREAM_ERROR;
+    strm = &(gz->strm);
+    if (gz->write) {
+        strm->next_in = Z_NULL;
+        strm->avail_in = 0;
+        do {
+            strm->next_out = out;
+            strm->avail_out = BUFLEN;
+            (void)deflate(strm, Z_FINISH);
+            fwrite(out, 1, BUFLEN - strm->avail_out, gz->file);
+        } while (strm->avail_out == 0);
+        deflateEnd(strm);
+    }
+    else
+        inflateEnd(strm);
+    fclose(gz->file);
+    free(gz);
+    return Z_OK;
+}
+
+const char *gzerror OF((gzFile, int *));
+
+const char *gzerror(gz, err)
+    gzFile gz;
+    int *err;
+{
+    *err = gz->err;
+    return gz->msg;
+}
+
+#endif
+
+static char *prog;
+
+void error            OF((const char *msg));
+void gz_compress      OF((FILE   *in, gzFile out));
+#ifdef USE_MMAP
+int  gz_compress_mmap OF((FILE   *in, gzFile out));
+#endif
+void gz_uncompress    OF((gzFile in, FILE   *out));
+void file_compress    OF((char  *file, char *mode));
+void file_uncompress  OF((char  *file));
+int  main             OF((int argc, char *argv[]));
+
+/* ===========================================================================
+ * Display error message and exit
+ */
+void error(msg)
+    const char *msg;
+{
+    fprintf(stderr, "%s: %s\n", prog, msg);
+    exit(1);
+}
+
+/* ===========================================================================
+ * Compress input to output then close both files.
+ */
+
+void gz_compress(in, out)
+    FILE   *in;
+    gzFile out;
+{
+    local char buf[BUFLEN];
+    int len;
+    int err;
+
+#ifdef USE_MMAP
+    /* Try first compressing with mmap. If mmap fails (minigzip used in a
+     * pipe), use the normal fread loop.
+     */
+    if (gz_compress_mmap(in, out) == Z_OK) return;
+#endif
+    for (;;) {
+        len = (int)fread(buf, 1, sizeof(buf), in);
+        if (ferror(in)) {
+            perror("fread");
+            exit(1);
+        }
+        if (len == 0) break;
+
+        if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err));
+    }
+    fclose(in);
+    if (gzclose(out) != Z_OK) error("failed gzclose");
+}
+
+#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */
+
+/* Try compressing the input file at once using mmap. Return Z_OK if
+ * if success, Z_ERRNO otherwise.
+ */
+int gz_compress_mmap(in, out)
+    FILE   *in;
+    gzFile out;
+{
+    int len;
+    int err;
+    int ifd = fileno(in);
+    caddr_t buf;    /* mmap'ed buffer for the entire input file */
+    off_t buf_len;  /* length of the input file */
+    struct stat sb;
+
+    /* Determine the size of the file, needed for mmap: */
+    if (fstat(ifd, &sb) < 0) return Z_ERRNO;
+    buf_len = sb.st_size;
+    if (buf_len <= 0) return Z_ERRNO;
+
+    /* Now do the actual mmap: */
+    buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0);
+    if (buf == (caddr_t)(-1)) return Z_ERRNO;
+
+    /* Compress the whole file at once: */
+    len = gzwrite(out, (char *)buf, (unsigned)buf_len);
+
+    if (len != (int)buf_len) error(gzerror(out, &err));
+
+    munmap(buf, buf_len);
+    fclose(in);
+    if (gzclose(out) != Z_OK) error("failed gzclose");
+    return Z_OK;
+}
+#endif /* USE_MMAP */
+
+/* ===========================================================================
+ * Uncompress input to output then close both files.
+ */
+void gz_uncompress(in, out)
+    gzFile in;
+    FILE   *out;
+{
+    local char buf[BUFLEN];
+    int len;
+    int err;
+
+    for (;;) {
+        len = gzread(in, buf, sizeof(buf));
+        if (len < 0) error (gzerror(in, &err));
+        if (len == 0) break;
+
+        if ((int)fwrite(buf, 1, (unsigned)len, out) != len) {
+            error("failed fwrite");
+        }
+    }
+    if (fclose(out)) error("failed fclose");
+
+    if (gzclose(in) != Z_OK) error("failed gzclose");
+}
+
+
+/* ===========================================================================
+ * Compress the given file: create a corresponding .gz file and remove the
+ * original.
+ */
+void file_compress(file, mode)
+    char  *file;
+    char  *mode;
+{
+    local char outfile[MAX_NAME_LEN];
+    FILE  *in;
+    gzFile out;
+
+    if (strlen(file) + strlen(GZ_SUFFIX) >= sizeof(outfile)) {
+        fprintf(stderr, "%s: filename too long\n", prog);
+        exit(1);
+    }
+
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(outfile, sizeof(outfile), "%s%s", file, GZ_SUFFIX);
+#else
+    strcpy(outfile, file);
+    strcat(outfile, GZ_SUFFIX);
+#endif
+
+    in = fopen(file, "rb");
+    if (in == NULL) {
+        perror(file);
+        exit(1);
+    }
+    out = gzopen(outfile, mode);
+    if (out == NULL) {
+        fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile);
+        exit(1);
+    }
+    gz_compress(in, out);
+
+    unlink(file);
+}
+
+
+/* ===========================================================================
+ * Uncompress the given file and remove the original.
+ */
+void file_uncompress(file)
+    char  *file;
+{
+    local char buf[MAX_NAME_LEN];
+    char *infile, *outfile;
+    FILE  *out;
+    gzFile in;
+    unsigned len = strlen(file);
+
+    if (len + strlen(GZ_SUFFIX) >= sizeof(buf)) {
+        fprintf(stderr, "%s: filename too long\n", prog);
+        exit(1);
+    }
+
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(buf, sizeof(buf), "%s", file);
+#else
+    strcpy(buf, file);
+#endif
+
+    if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) {
+        infile = file;
+        outfile = buf;
+        outfile[len-3] = '\0';
+    } else {
+        outfile = file;
+        infile = buf;
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+        snprintf(buf + len, sizeof(buf) - len, "%s", GZ_SUFFIX);
+#else
+        strcat(infile, GZ_SUFFIX);
+#endif
+    }
+    in = gzopen(infile, "rb");
+    if (in == NULL) {
+        fprintf(stderr, "%s: can't gzopen %s\n", prog, infile);
+        exit(1);
+    }
+    out = fopen(outfile, "wb");
+    if (out == NULL) {
+        perror(file);
+        exit(1);
+    }
+
+    gz_uncompress(in, out);
+
+    unlink(infile);
+}
+
+
+/* ===========================================================================
+ * Usage:  minigzip [-c] [-d] [-f] [-h] [-r] [-1 to -9] [files...]
+ *   -c : write to standard output
+ *   -d : decompress
+ *   -f : compress with Z_FILTERED
+ *   -h : compress with Z_HUFFMAN_ONLY
+ *   -r : compress with Z_RLE
+ *   -1 to -9 : compression level
+ */
+
+int main(argc, argv)
+    int argc;
+    char *argv[];
+{
+    int copyout = 0;
+    int uncompr = 0;
+    gzFile file;
+    char *bname, outmode[20];
+
+#if !defined(NO_snprintf) && !defined(NO_vsnprintf)
+    snprintf(outmode, sizeof(outmode), "%s", "wb6 ");
+#else
+    strcpy(outmode, "wb6 ");
+#endif
+
+    prog = argv[0];
+    bname = strrchr(argv[0], '/');
+    if (bname)
+      bname++;
+    else
+      bname = argv[0];
+    argc--, argv++;
+
+    if (!strcmp(bname, "gunzip"))
+      uncompr = 1;
+    else if (!strcmp(bname, "zcat"))
+      copyout = uncompr = 1;
+
+    while (argc > 0) {
+      if (strcmp(*argv, "-c") == 0)
+        copyout = 1;
+      else if (strcmp(*argv, "-d") == 0)
+        uncompr = 1;
+      else if (strcmp(*argv, "-f") == 0)
+        outmode[3] = 'f';
+      else if (strcmp(*argv, "-h") == 0)
+        outmode[3] = 'h';
+      else if (strcmp(*argv, "-r") == 0)
+        outmode[3] = 'R';
+      else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' &&
+               (*argv)[2] == 0)
+        outmode[2] = (*argv)[1];
+      else
+        break;
+      argc--, argv++;
+    }
+    if (outmode[3] == ' ')
+        outmode[3] = 0;
+    if (argc == 0) {
+        SET_BINARY_MODE(stdin);
+        SET_BINARY_MODE(stdout);
+        if (uncompr) {
+            file = gzdopen(fileno(stdin), "rb");
+            if (file == NULL) error("can't gzdopen stdin");
+            gz_uncompress(file, stdout);
+        } else {
+            file = gzdopen(fileno(stdout), outmode);
+            if (file == NULL) error("can't gzdopen stdout");
+            gz_compress(stdin, file);
+        }
+    } else {
+        if (copyout) {
+            SET_BINARY_MODE(stdout);
+        }
+        do {
+            if (uncompr) {
+                if (copyout) {
+                    file = gzopen(*argv, "rb");
+                    if (file == NULL)
+                        fprintf(stderr, "%s: can't gzopen %s\n", prog, *argv);
+                    else
+                        gz_uncompress(file, stdout);
+                } else {
+                    file_uncompress(*argv);
+                }
+            } else {
+                if (copyout) {
+                    FILE * in = fopen(*argv, "rb");
+
+                    if (in == NULL) {
+                        perror(*argv);
+                    } else {
+                        file = gzdopen(fileno(stdout), outmode);
+                        if (file == NULL) error("can't gzdopen stdout");
+
+                        gz_compress(in, file);
+                    }
+
+                } else {
+                    file_compress(*argv, outmode);
+                }
+            }
+        } while (argv++, --argc);
+    }
+    return 0;
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/treebuild.xml b/src/boost/libs/beast/test/extern/zlib-1.2.11/treebuild.xml
new file mode 100644
index 000000000..fd75525f9
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/treebuild.xml
@@ -0,0 +1,116 @@
+<?xml version="1.0" ?>
+<package name="zlib" version="1.2.11">
+    <library name="zlib" dlversion="1.2.11" dlname="z">
+	<property name="description"> zip compression library </property>
+	<property name="include-target-dir" value="$(@PACKAGE/install-includedir)" />
+
+	<!-- fixme: not implemented yet -->
+	<property name="compiler/c/inline" value="yes" />
+
+	<include-file name="zlib.h" scope="public" mode="644" />
+	<include-file name="zconf.h" scope="public" mode="644" />
+
+	<source name="adler32.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	</source>
+	<source name="compress.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	</source>
+	<source name="crc32.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="crc32.h" />
+	</source>
+	<source name="gzclose.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="gzlib.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="gzread.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="gzwrite.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="gzguts.h" />
+	</source>
+	<source name="uncompr.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	</source>
+	<source name="deflate.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="deflate.h" />
+	</source>
+	<source name="trees.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="deflate.h" />
+	    <depend name="trees.h" />
+	</source>
+	<source name="zutil.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	</source>
+	<source name="inflate.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	    <depend name="inflate.h" />
+	    <depend name="inffast.h" />
+	</source>
+	<source name="infback.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	    <depend name="inflate.h" />
+	    <depend name="inffast.h" />
+	</source>
+	<source name="inftrees.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	</source>
+	<source name="inffast.c">
+	    <depend name="zlib.h" />
+	    <depend name="zconf.h" />
+	    <depend name="zutil.h" />
+	    <depend name="inftrees.h" />
+	    <depend name="inflate.h" />
+	    <depend name="inffast.h" />
+	</source>
+    </library>
+</package>
+
+<!--
+CFLAGS=-O
+#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7
+#CFLAGS=-g -DZLIB_DEBUG
+#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \
+#           -Wstrict-prototypes -Wmissing-prototypes
+
+# OBJA =
+# to use the asm code: make OBJA=match.o
+#
+match.o: match.S
+	$(CPP) match.S > _match.s
+	$(CC) -c _match.s
+	mv _match.o match.o
+	rm -f _match.s
+-->
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/trees.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/trees.c
new file mode 100644
index 000000000..50cf4b457
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/trees.c
@@ -0,0 +1,1203 @@
+/* trees.c -- output deflated data using Huffman coding
+ * Copyright (C) 1995-2017 Jean-loup Gailly
+ * detect_data_type() function provided freely by Cosmin Truta, 2006
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/*
+ *  ALGORITHM
+ *
+ *      The "deflation" process uses several Huffman trees. The more
+ *      common source values are represented by shorter bit sequences.
+ *
+ *      Each code tree is stored in a compressed form which is itself
+ * a Huffman encoding of the lengths of all the code strings (in
+ * ascending order by source values).  The actual code strings are
+ * reconstructed from the lengths in the inflate process, as described
+ * in the deflate specification.
+ *
+ *  REFERENCES
+ *
+ *      Deutsch, L.P.,"'Deflate' Compressed Data Format Specification".
+ *      Available in ftp.uu.net:/pub/archiving/zip/doc/deflate-1.1.doc
+ *
+ *      Storer, James A.
+ *          Data Compression:  Methods and Theory, pp. 49-50.
+ *          Computer Science Press, 1988.  ISBN 0-7167-8156-5.
+ *
+ *      Sedgewick, R.
+ *          Algorithms, p290.
+ *          Addison-Wesley, 1983. ISBN 0-201-06672-6.
+ */
+
+/* @(#) $Id$ */
+
+/* #define GEN_TREES_H */
+
+#include "deflate.h"
+
+#ifdef ZLIB_DEBUG
+#  include <ctype.h>
+#endif
+
+/* ===========================================================================
+ * Constants
+ */
+
+#define MAX_BL_BITS 7
+/* Bit length codes must not exceed MAX_BL_BITS bits */
+
+#define END_BLOCK 256
+/* end of block literal code */
+
+#define REP_3_6      16
+/* repeat previous bit length 3-6 times (2 bits of repeat count) */
+
+#define REPZ_3_10    17
+/* repeat a zero length 3-10 times  (3 bits of repeat count) */
+
+#define REPZ_11_138  18
+/* repeat a zero length 11-138 times  (7 bits of repeat count) */
+
+local const int extra_lbits[LENGTH_CODES] /* extra bits for each length code */
+   = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
+
+local const int extra_dbits[D_CODES] /* extra bits for each distance code */
+   = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
+
+local const int extra_blbits[BL_CODES]/* extra bits for each bit length code */
+   = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
+
+local const uch bl_order[BL_CODES]
+   = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
+/* The lengths of the bit length codes are sent in order of decreasing
+ * probability, to avoid transmitting the lengths for unused bit length codes.
+ */
+
+/* ===========================================================================
+ * Local data. These are initialized only once.
+ */
+
+#define DIST_CODE_LEN  512 /* see definition of array dist_code below */
+
+#if defined(GEN_TREES_H) || !defined(STDC)
+/* non ANSI compilers may not accept trees.h */
+
+local ct_data static_ltree[L_CODES+2];
+/* The static literal tree. Since the bit lengths are imposed, there is no
+ * need for the L_CODES extra codes used during heap construction. However
+ * The codes 286 and 287 are needed to build a canonical tree (see _tr_init
+ * below).
+ */
+
+local ct_data static_dtree[D_CODES];
+/* The static distance tree. (Actually a trivial tree since all codes use
+ * 5 bits.)
+ */
+
+uch _dist_code[DIST_CODE_LEN];
+/* Distance codes. The first 256 values correspond to the distances
+ * 3 .. 258, the last 256 values correspond to the top 8 bits of
+ * the 15 bit distances.
+ */
+
+uch _length_code[MAX_MATCH-MIN_MATCH+1];
+/* length code for each normalized match length (0 == MIN_MATCH) */
+
+local int base_length[LENGTH_CODES];
+/* First normalized length for each code (0 = MIN_MATCH) */
+
+local int base_dist[D_CODES];
+/* First normalized distance for each code (0 = distance of 1) */
+
+#else
+#  include "trees.h"
+#endif /* GEN_TREES_H */
+
+struct static_tree_desc_s {
+    const ct_data *static_tree;  /* static tree or NULL */
+    const intf *extra_bits;      /* extra bits for each code or NULL */
+    int     extra_base;          /* base index for extra_bits */
+    int     elems;               /* max number of elements in the tree */
+    int     max_length;          /* max bit length for the codes */
+};
+
+local const static_tree_desc  static_l_desc =
+{static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS};
+
+local const static_tree_desc  static_d_desc =
+{static_dtree, extra_dbits, 0,          D_CODES, MAX_BITS};
+
+local const static_tree_desc  static_bl_desc =
+{(const ct_data *)0, extra_blbits, 0,   BL_CODES, MAX_BL_BITS};
+
+/* ===========================================================================
+ * Local (static) routines in this file.
+ */
+
+local void tr_static_init OF((void));
+local void init_block     OF((deflate_state *s));
+local void pqdownheap     OF((deflate_state *s, ct_data *tree, int k));
+local void gen_bitlen     OF((deflate_state *s, tree_desc *desc));
+local void gen_codes      OF((ct_data *tree, int max_code, ushf *bl_count));
+local void build_tree     OF((deflate_state *s, tree_desc *desc));
+local void scan_tree      OF((deflate_state *s, ct_data *tree, int max_code));
+local void send_tree      OF((deflate_state *s, ct_data *tree, int max_code));
+local int  build_bl_tree  OF((deflate_state *s));
+local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes,
+                              int blcodes));
+local void compress_block OF((deflate_state *s, const ct_data *ltree,
+                              const ct_data *dtree));
+local int  detect_data_type OF((deflate_state *s));
+local unsigned bi_reverse OF((unsigned value, int length));
+local void bi_windup      OF((deflate_state *s));
+local void bi_flush       OF((deflate_state *s));
+
+#ifdef GEN_TREES_H
+local void gen_trees_header OF((void));
+#endif
+
+#ifndef ZLIB_DEBUG
+#  define send_code(s, c, tree) send_bits(s, tree[c].Code, tree[c].Len)
+   /* Send a code of the given tree. c and tree must not have side effects */
+
+#else /* !ZLIB_DEBUG */
+#  define send_code(s, c, tree) \
+     { if (z_verbose>2) fprintf(stderr,"\ncd %3d ",(c)); \
+       send_bits(s, tree[c].Code, tree[c].Len); }
+#endif
+
+/* ===========================================================================
+ * Output a short LSB first on the stream.
+ * IN assertion: there is enough room in pendingBuf.
+ */
+#define put_short(s, w) { \
+    put_byte(s, (uch)((w) & 0xff)); \
+    put_byte(s, (uch)((ush)(w) >> 8)); \
+}
+
+/* ===========================================================================
+ * Send a value on a given number of bits.
+ * IN assertion: length <= 16 and value fits in length bits.
+ */
+#ifdef ZLIB_DEBUG
+local void send_bits      OF((deflate_state *s, int value, int length));
+
+local void send_bits(s, value, length)
+    deflate_state *s;
+    int value;  /* value to send */
+    int length; /* number of bits */
+{
+    Tracevv((stderr," l %2d v %4x ", length, value));
+    Assert(length > 0 && length <= 15, "invalid length");
+    s->bits_sent += (ulg)length;
+
+    /* If not enough room in bi_buf, use (valid) bits from bi_buf and
+     * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
+     * unused bits in value.
+     */
+    if (s->bi_valid > (int)Buf_size - length) {
+        s->bi_buf |= (ush)value << s->bi_valid;
+        put_short(s, s->bi_buf);
+        s->bi_buf = (ush)value >> (Buf_size - s->bi_valid);
+        s->bi_valid += length - Buf_size;
+    } else {
+        s->bi_buf |= (ush)value << s->bi_valid;
+        s->bi_valid += length;
+    }
+}
+#else /* !ZLIB_DEBUG */
+
+#define send_bits(s, value, length) \
+{ int len = length;\
+  if (s->bi_valid > (int)Buf_size - len) {\
+    int val = (int)value;\
+    s->bi_buf |= (ush)val << s->bi_valid;\
+    put_short(s, s->bi_buf);\
+    s->bi_buf = (ush)val >> (Buf_size - s->bi_valid);\
+    s->bi_valid += len - Buf_size;\
+  } else {\
+    s->bi_buf |= (ush)(value) << s->bi_valid;\
+    s->bi_valid += len;\
+  }\
+}
+#endif /* ZLIB_DEBUG */
+
+
+/* the arguments must not have side effects */
+
+/* ===========================================================================
+ * Initialize the various 'constant' tables.
+ */
+local void tr_static_init()
+{
+#if defined(GEN_TREES_H) || !defined(STDC)
+    static int static_init_done = 0;
+    int n;        /* iterates over tree elements */
+    int bits;     /* bit counter */
+    int length;   /* length value */
+    int code;     /* code value */
+    int dist;     /* distance index */
+    ush bl_count[MAX_BITS+1];
+    /* number of codes at each bit length for an optimal tree */
+
+    if (static_init_done) return;
+
+    /* For some embedded targets, global variables are not initialized: */
+#ifdef NO_INIT_GLOBAL_POINTERS
+    static_l_desc.static_tree = static_ltree;
+    static_l_desc.extra_bits = extra_lbits;
+    static_d_desc.static_tree = static_dtree;
+    static_d_desc.extra_bits = extra_dbits;
+    static_bl_desc.extra_bits = extra_blbits;
+#endif
+
+    /* Initialize the mapping length (0..255) -> length code (0..28) */
+    length = 0;
+    for (code = 0; code < LENGTH_CODES-1; code++) {
+        base_length[code] = length;
+        for (n = 0; n < (1<<extra_lbits[code]); n++) {
+            _length_code[length++] = (uch)code;
+        }
+    }
+    Assert (length == 256, "tr_static_init: length != 256");
+    /* Note that the length 255 (match length 258) can be represented
+     * in two different ways: code 284 + 5 bits or code 285, so we
+     * overwrite length_code[255] to use the best encoding:
+     */
+    _length_code[length-1] = (uch)code;
+
+    /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
+    dist = 0;
+    for (code = 0 ; code < 16; code++) {
+        base_dist[code] = dist;
+        for (n = 0; n < (1<<extra_dbits[code]); n++) {
+            _dist_code[dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "tr_static_init: dist != 256");
+    dist >>= 7; /* from now on, all distances are divided by 128 */
+    for ( ; code < D_CODES; code++) {
+        base_dist[code] = dist << 7;
+        for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
+            _dist_code[256 + dist++] = (uch)code;
+        }
+    }
+    Assert (dist == 256, "tr_static_init: 256+dist != 512");
+
+    /* Construct the codes of the static literal tree */
+    for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+    n = 0;
+    while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
+    while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
+    while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
+    while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
+    /* Codes 286 and 287 do not exist, but we must include them in the
+     * tree construction to get a canonical Huffman tree (longest code
+     * all ones)
+     */
+    gen_codes((ct_data *)static_ltree, L_CODES+1, bl_count);
+
+    /* The static distance tree is trivial: */
+    for (n = 0; n < D_CODES; n++) {
+        static_dtree[n].Len = 5;
+        static_dtree[n].Code = bi_reverse((unsigned)n, 5);
+    }
+    static_init_done = 1;
+
+#  ifdef GEN_TREES_H
+    gen_trees_header();
+#  endif
+#endif /* defined(GEN_TREES_H) || !defined(STDC) */
+}
+
+/* ===========================================================================
+ * Genererate the file trees.h describing the static trees.
+ */
+#ifdef GEN_TREES_H
+#  ifndef ZLIB_DEBUG
+#    include <stdio.h>
+#  endif
+
+#  define SEPARATOR(i, last, width) \
+      ((i) == (last)? "\n};\n\n" :    \
+       ((i) % (width) == (width)-1 ? ",\n" : ", "))
+
+void gen_trees_header()
+{
+    FILE *header = fopen("trees.h", "w");
+    int i;
+
+    Assert (header != NULL, "Can't open trees.h");
+    fprintf(header,
+            "/* header created automatically with -DGEN_TREES_H */\n\n");
+
+    fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n");
+    for (i = 0; i < L_CODES+2; i++) {
+        fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code,
+                static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5));
+    }
+
+    fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n");
+    for (i = 0; i < D_CODES; i++) {
+        fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code,
+                static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5));
+    }
+
+    fprintf(header, "const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {\n");
+    for (i = 0; i < DIST_CODE_LEN; i++) {
+        fprintf(header, "%2u%s", _dist_code[i],
+                SEPARATOR(i, DIST_CODE_LEN-1, 20));
+    }
+
+    fprintf(header,
+        "const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {\n");
+    for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) {
+        fprintf(header, "%2u%s", _length_code[i],
+                SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20));
+    }
+
+    fprintf(header, "local const int base_length[LENGTH_CODES] = {\n");
+    for (i = 0; i < LENGTH_CODES; i++) {
+        fprintf(header, "%1u%s", base_length[i],
+                SEPARATOR(i, LENGTH_CODES-1, 20));
+    }
+
+    fprintf(header, "local const int base_dist[D_CODES] = {\n");
+    for (i = 0; i < D_CODES; i++) {
+        fprintf(header, "%5u%s", base_dist[i],
+                SEPARATOR(i, D_CODES-1, 10));
+    }
+
+    fclose(header);
+}
+#endif /* GEN_TREES_H */
+
+/* ===========================================================================
+ * Initialize the tree data structures for a new zlib stream.
+ */
+void ZLIB_INTERNAL _tr_init(s)
+    deflate_state *s;
+{
+    tr_static_init();
+
+    s->l_desc.dyn_tree = s->dyn_ltree;
+    s->l_desc.stat_desc = &static_l_desc;
+
+    s->d_desc.dyn_tree = s->dyn_dtree;
+    s->d_desc.stat_desc = &static_d_desc;
+
+    s->bl_desc.dyn_tree = s->bl_tree;
+    s->bl_desc.stat_desc = &static_bl_desc;
+
+    s->bi_buf = 0;
+    s->bi_valid = 0;
+#ifdef ZLIB_DEBUG
+    s->compressed_len = 0L;
+    s->bits_sent = 0L;
+#endif
+
+    /* Initialize the first block of the first file: */
+    init_block(s);
+}
+
+/* ===========================================================================
+ * Initialize a new block.
+ */
+local void init_block(s)
+    deflate_state *s;
+{
+    int n; /* iterates over tree elements */
+
+    /* Initialize the trees. */
+    for (n = 0; n < L_CODES;  n++) s->dyn_ltree[n].Freq = 0;
+    for (n = 0; n < D_CODES;  n++) s->dyn_dtree[n].Freq = 0;
+    for (n = 0; n < BL_CODES; n++) s->bl_tree[n].Freq = 0;
+
+    s->dyn_ltree[END_BLOCK].Freq = 1;
+    s->opt_len = s->static_len = 0L;
+    s->last_lit = s->matches = 0;
+}
+
+#define SMALLEST 1
+/* Index within the heap array of least frequent node in the Huffman tree */
+
+
+/* ===========================================================================
+ * Remove the smallest element from the heap and recreate the heap with
+ * one less element. Updates heap and heap_len.
+ */
+#define pqremove(s, tree, top) \
+{\
+    top = s->heap[SMALLEST]; \
+    s->heap[SMALLEST] = s->heap[s->heap_len--]; \
+    pqdownheap(s, tree, SMALLEST); \
+}
+
+/* ===========================================================================
+ * Compares to subtrees, using the tree depth as tie breaker when
+ * the subtrees have equal frequency. This minimizes the worst case length.
+ */
+#define smaller(tree, n, m, depth) \
+   (tree[n].Freq < tree[m].Freq || \
+   (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
+
+/* ===========================================================================
+ * Restore the heap property by moving down the tree starting at node k,
+ * exchanging a node with the smallest of its two sons if necessary, stopping
+ * when the heap property is re-established (each father smaller than its
+ * two sons).
+ */
+local void pqdownheap(s, tree, k)
+    deflate_state *s;
+    ct_data *tree;  /* the tree to restore */
+    int k;               /* node to move down */
+{
+    int v = s->heap[k];
+    int j = k << 1;  /* left son of k */
+    while (j <= s->heap_len) {
+        /* Set j to the smallest of the two sons: */
+        if (j < s->heap_len &&
+            smaller(tree, s->heap[j+1], s->heap[j], s->depth)) {
+            j++;
+        }
+        /* Exit if v is smaller than both sons */
+        if (smaller(tree, v, s->heap[j], s->depth)) break;
+
+        /* Exchange v with the smallest son */
+        s->heap[k] = s->heap[j];  k = j;
+
+        /* And continue down the tree, setting j to the left son of k */
+        j <<= 1;
+    }
+    s->heap[k] = v;
+}
+
+/* ===========================================================================
+ * Compute the optimal bit lengths for a tree and update the total bit length
+ * for the current block.
+ * IN assertion: the fields freq and dad are set, heap[heap_max] and
+ *    above are the tree nodes sorted by increasing frequency.
+ * OUT assertions: the field len is set to the optimal bit length, the
+ *     array bl_count contains the frequencies for each bit length.
+ *     The length opt_len is updated; static_len is also updated if stree is
+ *     not null.
+ */
+local void gen_bitlen(s, desc)
+    deflate_state *s;
+    tree_desc *desc;    /* the tree descriptor */
+{
+    ct_data *tree        = desc->dyn_tree;
+    int max_code         = desc->max_code;
+    const ct_data *stree = desc->stat_desc->static_tree;
+    const intf *extra    = desc->stat_desc->extra_bits;
+    int base             = desc->stat_desc->extra_base;
+    int max_length       = desc->stat_desc->max_length;
+    int h;              /* heap index */
+    int n, m;           /* iterate over the tree elements */
+    int bits;           /* bit length */
+    int xbits;          /* extra bits */
+    ush f;              /* frequency */
+    int overflow = 0;   /* number of elements with bit length too large */
+
+    for (bits = 0; bits <= MAX_BITS; bits++) s->bl_count[bits] = 0;
+
+    /* In a first pass, compute the optimal bit lengths (which may
+     * overflow in the case of the bit length tree).
+     */
+    tree[s->heap[s->heap_max]].Len = 0; /* root of the heap */
+
+    for (h = s->heap_max+1; h < HEAP_SIZE; h++) {
+        n = s->heap[h];
+        bits = tree[tree[n].Dad].Len + 1;
+        if (bits > max_length) bits = max_length, overflow++;
+        tree[n].Len = (ush)bits;
+        /* We overwrite tree[n].Dad which is no longer needed */
+
+        if (n > max_code) continue; /* not a leaf node */
+
+        s->bl_count[bits]++;
+        xbits = 0;
+        if (n >= base) xbits = extra[n-base];
+        f = tree[n].Freq;
+        s->opt_len += (ulg)f * (unsigned)(bits + xbits);
+        if (stree) s->static_len += (ulg)f * (unsigned)(stree[n].Len + xbits);
+    }
+    if (overflow == 0) return;
+
+    Tracev((stderr,"\nbit length overflow\n"));
+    /* This happens for example on obj2 and pic of the Calgary corpus */
+
+    /* Find the first bit length which could increase: */
+    do {
+        bits = max_length-1;
+        while (s->bl_count[bits] == 0) bits--;
+        s->bl_count[bits]--;      /* move one leaf down the tree */
+        s->bl_count[bits+1] += 2; /* move one overflow item as its brother */
+        s->bl_count[max_length]--;
+        /* The brother of the overflow item also moves one step up,
+         * but this does not affect bl_count[max_length]
+         */
+        overflow -= 2;
+    } while (overflow > 0);
+
+    /* Now recompute all bit lengths, scanning in increasing frequency.
+     * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
+     * lengths instead of fixing only the wrong ones. This idea is taken
+     * from 'ar' written by Haruhiko Okumura.)
+     */
+    for (bits = max_length; bits != 0; bits--) {
+        n = s->bl_count[bits];
+        while (n != 0) {
+            m = s->heap[--h];
+            if (m > max_code) continue;
+            if ((unsigned) tree[m].Len != (unsigned) bits) {
+                Tracev((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+                s->opt_len += ((ulg)bits - tree[m].Len) * tree[m].Freq;
+                tree[m].Len = (ush)bits;
+            }
+            n--;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Generate the codes for a given tree and bit counts (which need not be
+ * optimal).
+ * IN assertion: the array bl_count contains the bit length statistics for
+ * the given tree and the field len is set for all tree elements.
+ * OUT assertion: the field code is set for all tree elements of non
+ *     zero code length.
+ */
+local void gen_codes (tree, max_code, bl_count)
+    ct_data *tree;             /* the tree to decorate */
+    int max_code;              /* largest code with non zero frequency */
+    ushf *bl_count;            /* number of codes at each bit length */
+{
+    ush next_code[MAX_BITS+1]; /* next code value for each bit length */
+    unsigned code = 0;         /* running code value */
+    int bits;                  /* bit index */
+    int n;                     /* code index */
+
+    /* The distribution counts are first used to generate the code values
+     * without bit reversal.
+     */
+    for (bits = 1; bits <= MAX_BITS; bits++) {
+        code = (code + bl_count[bits-1]) << 1;
+        next_code[bits] = (ush)code;
+    }
+    /* Check that the bit counts in bl_count are consistent. The last code
+     * must be all ones.
+     */
+    Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
+            "inconsistent bit counts");
+    Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
+
+    for (n = 0;  n <= max_code; n++) {
+        int len = tree[n].Len;
+        if (len == 0) continue;
+        /* Now reverse the bits */
+        tree[n].Code = (ush)bi_reverse(next_code[len]++, len);
+
+        Tracecv(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
+             n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
+    }
+}
+
+/* ===========================================================================
+ * Construct one Huffman tree and assigns the code bit strings and lengths.
+ * Update the total bit length for the current block.
+ * IN assertion: the field freq is set for all tree elements.
+ * OUT assertions: the fields len and code are set to the optimal bit length
+ *     and corresponding code. The length opt_len is updated; static_len is
+ *     also updated if stree is not null. The field max_code is set.
+ */
+local void build_tree(s, desc)
+    deflate_state *s;
+    tree_desc *desc; /* the tree descriptor */
+{
+    ct_data *tree         = desc->dyn_tree;
+    const ct_data *stree  = desc->stat_desc->static_tree;
+    int elems             = desc->stat_desc->elems;
+    int n, m;          /* iterate over heap elements */
+    int max_code = -1; /* largest code with non zero frequency */
+    int node;          /* new node being created */
+
+    /* Construct the initial heap, with least frequent element in
+     * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
+     * heap[0] is not used.
+     */
+    s->heap_len = 0, s->heap_max = HEAP_SIZE;
+
+    for (n = 0; n < elems; n++) {
+        if (tree[n].Freq != 0) {
+            s->heap[++(s->heap_len)] = max_code = n;
+            s->depth[n] = 0;
+        } else {
+            tree[n].Len = 0;
+        }
+    }
+
+    /* The pkzip format requires that at least one distance code exists,
+     * and that at least one bit should be sent even if there is only one
+     * possible code. So to avoid special checks later on we force at least
+     * two codes of non zero frequency.
+     */
+    while (s->heap_len < 2) {
+        node = s->heap[++(s->heap_len)] = (max_code < 2 ? ++max_code : 0);
+        tree[node].Freq = 1;
+        s->depth[node] = 0;
+        s->opt_len--; if (stree) s->static_len -= stree[node].Len;
+        /* node is 0 or 1 so it does not have extra bits */
+    }
+    desc->max_code = max_code;
+
+    /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
+     * establish sub-heaps of increasing lengths:
+     */
+    for (n = s->heap_len/2; n >= 1; n--) pqdownheap(s, tree, n);
+
+    /* Construct the Huffman tree by repeatedly combining the least two
+     * frequent nodes.
+     */
+    node = elems;              /* next internal node of the tree */
+    do {
+        pqremove(s, tree, n);  /* n = node of least frequency */
+        m = s->heap[SMALLEST]; /* m = node of next least frequency */
+
+        s->heap[--(s->heap_max)] = n; /* keep the nodes sorted by frequency */
+        s->heap[--(s->heap_max)] = m;
+
+        /* Create a new node father of n and m */
+        tree[node].Freq = tree[n].Freq + tree[m].Freq;
+        s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ?
+                                s->depth[n] : s->depth[m]) + 1);
+        tree[n].Dad = tree[m].Dad = (ush)node;
+#ifdef DUMP_BL_TREE
+        if (tree == s->bl_tree) {
+            fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
+                    node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
+        }
+#endif
+        /* and insert the new node in the heap */
+        s->heap[SMALLEST] = node++;
+        pqdownheap(s, tree, SMALLEST);
+
+    } while (s->heap_len >= 2);
+
+    s->heap[--(s->heap_max)] = s->heap[SMALLEST];
+
+    /* At this point, the fields freq and dad are set. We can now
+     * generate the bit lengths.
+     */
+    gen_bitlen(s, (tree_desc *)desc);
+
+    /* The field len is now set, we can generate the bit codes */
+    gen_codes ((ct_data *)tree, max_code, s->bl_count);
+}
+
+/* ===========================================================================
+ * Scan a literal or distance tree to determine the frequencies of the codes
+ * in the bit length tree.
+ */
+local void scan_tree (s, tree, max_code)
+    deflate_state *s;
+    ct_data *tree;   /* the tree to be scanned */
+    int max_code;    /* and its largest code of non zero frequency */
+{
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    if (nextlen == 0) max_count = 138, min_count = 3;
+    tree[max_code+1].Len = (ush)0xffff; /* guard */
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n+1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            s->bl_tree[curlen].Freq += count;
+        } else if (curlen != 0) {
+            if (curlen != prevlen) s->bl_tree[curlen].Freq++;
+            s->bl_tree[REP_3_6].Freq++;
+        } else if (count <= 10) {
+            s->bl_tree[REPZ_3_10].Freq++;
+        } else {
+            s->bl_tree[REPZ_11_138].Freq++;
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Send a literal or distance tree in compressed form, using the codes in
+ * bl_tree.
+ */
+local void send_tree (s, tree, max_code)
+    deflate_state *s;
+    ct_data *tree; /* the tree to be scanned */
+    int max_code;       /* and its largest code of non zero frequency */
+{
+    int n;                     /* iterates over all tree elements */
+    int prevlen = -1;          /* last emitted length */
+    int curlen;                /* length of current code */
+    int nextlen = tree[0].Len; /* length of next code */
+    int count = 0;             /* repeat count of the current code */
+    int max_count = 7;         /* max repeat count */
+    int min_count = 4;         /* min repeat count */
+
+    /* tree[max_code+1].Len = -1; */  /* guard already set */
+    if (nextlen == 0) max_count = 138, min_count = 3;
+
+    for (n = 0; n <= max_code; n++) {
+        curlen = nextlen; nextlen = tree[n+1].Len;
+        if (++count < max_count && curlen == nextlen) {
+            continue;
+        } else if (count < min_count) {
+            do { send_code(s, curlen, s->bl_tree); } while (--count != 0);
+
+        } else if (curlen != 0) {
+            if (curlen != prevlen) {
+                send_code(s, curlen, s->bl_tree); count--;
+            }
+            Assert(count >= 3 && count <= 6, " 3_6?");
+            send_code(s, REP_3_6, s->bl_tree); send_bits(s, count-3, 2);
+
+        } else if (count <= 10) {
+            send_code(s, REPZ_3_10, s->bl_tree); send_bits(s, count-3, 3);
+
+        } else {
+            send_code(s, REPZ_11_138, s->bl_tree); send_bits(s, count-11, 7);
+        }
+        count = 0; prevlen = curlen;
+        if (nextlen == 0) {
+            max_count = 138, min_count = 3;
+        } else if (curlen == nextlen) {
+            max_count = 6, min_count = 3;
+        } else {
+            max_count = 7, min_count = 4;
+        }
+    }
+}
+
+/* ===========================================================================
+ * Construct the Huffman tree for the bit lengths and return the index in
+ * bl_order of the last bit length code to send.
+ */
+local int build_bl_tree(s)
+    deflate_state *s;
+{
+    int max_blindex;  /* index of last bit length code of non zero freq */
+
+    /* Determine the bit length frequencies for literal and distance trees */
+    scan_tree(s, (ct_data *)s->dyn_ltree, s->l_desc.max_code);
+    scan_tree(s, (ct_data *)s->dyn_dtree, s->d_desc.max_code);
+
+    /* Build the bit length tree: */
+    build_tree(s, (tree_desc *)(&(s->bl_desc)));
+    /* opt_len now includes the length of the tree representations, except
+     * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
+     */
+
+    /* Determine the number of bit length codes to send. The pkzip format
+     * requires that at least 4 bit length codes be sent. (appnote.txt says
+     * 3 but the actual value used is 4.)
+     */
+    for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
+        if (s->bl_tree[bl_order[max_blindex]].Len != 0) break;
+    }
+    /* Update opt_len to include the bit length tree and counts */
+    s->opt_len += 3*((ulg)max_blindex+1) + 5+5+4;
+    Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld",
+            s->opt_len, s->static_len));
+
+    return max_blindex;
+}
+
+/* ===========================================================================
+ * Send the header for a block using dynamic Huffman trees: the counts, the
+ * lengths of the bit length codes, the literal tree and the distance tree.
+ * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
+ */
+local void send_all_trees(s, lcodes, dcodes, blcodes)
+    deflate_state *s;
+    int lcodes, dcodes, blcodes; /* number of codes for each tree */
+{
+    int rank;                    /* index in bl_order */
+
+    Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
+    Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
+            "too many codes");
+    Tracev((stderr, "\nbl counts: "));
+    send_bits(s, lcodes-257, 5); /* not +255 as stated in appnote.txt */
+    send_bits(s, dcodes-1,   5);
+    send_bits(s, blcodes-4,  4); /* not -3 as stated in appnote.txt */
+    for (rank = 0; rank < blcodes; rank++) {
+        Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
+        send_bits(s, s->bl_tree[bl_order[rank]].Len, 3);
+    }
+    Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent));
+
+    send_tree(s, (ct_data *)s->dyn_ltree, lcodes-1); /* literal tree */
+    Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent));
+
+    send_tree(s, (ct_data *)s->dyn_dtree, dcodes-1); /* distance tree */
+    Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent));
+}
+
+/* ===========================================================================
+ * Send a stored block
+ */
+void ZLIB_INTERNAL _tr_stored_block(s, buf, stored_len, last)
+    deflate_state *s;
+    charf *buf;       /* input block */
+    ulg stored_len;   /* length of input block */
+    int last;         /* one if this is the last block for a file */
+{
+    send_bits(s, (STORED_BLOCK<<1)+last, 3);    /* send block type */
+    bi_windup(s);        /* align on byte boundary */
+    put_short(s, (ush)stored_len);
+    put_short(s, (ush)~stored_len);
+    zmemcpy(s->pending_buf + s->pending, (Bytef *)buf, stored_len);
+    s->pending += stored_len;
+#ifdef ZLIB_DEBUG
+    s->compressed_len = (s->compressed_len + 3 + 7) & (ulg)~7L;
+    s->compressed_len += (stored_len + 4) << 3;
+    s->bits_sent += 2*16;
+    s->bits_sent += stored_len<<3;
+#endif
+}
+
+/* ===========================================================================
+ * Flush the bits in the bit buffer to pending output (leaves at most 7 bits)
+ */
+void ZLIB_INTERNAL _tr_flush_bits(s)
+    deflate_state *s;
+{
+    bi_flush(s);
+}
+
+/* ===========================================================================
+ * Send one empty static block to give enough lookahead for inflate.
+ * This takes 10 bits, of which 7 may remain in the bit buffer.
+ */
+void ZLIB_INTERNAL _tr_align(s)
+    deflate_state *s;
+{
+    send_bits(s, STATIC_TREES<<1, 3);
+    send_code(s, END_BLOCK, static_ltree);
+#ifdef ZLIB_DEBUG
+    s->compressed_len += 10L; /* 3 for block type, 7 for EOB */
+#endif
+    bi_flush(s);
+}
+
+/* ===========================================================================
+ * Determine the best encoding for the current block: dynamic trees, static
+ * trees or store, and write out the encoded block.
+ */
+void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last)
+    deflate_state *s;
+    charf *buf;       /* input block, or NULL if too old */
+    ulg stored_len;   /* length of input block */
+    int last;         /* one if this is the last block for a file */
+{
+    ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
+    int max_blindex = 0;  /* index of last bit length code of non zero freq */
+
+    /* Build the Huffman trees unless a stored block is forced */
+    if (s->level > 0) {
+
+        /* Check if the file is binary or text */
+        if (s->strm->data_type == Z_UNKNOWN)
+            s->strm->data_type = detect_data_type(s);
+
+        /* Construct the literal and distance trees */
+        build_tree(s, (tree_desc *)(&(s->l_desc)));
+        Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len,
+                s->static_len));
+
+        build_tree(s, (tree_desc *)(&(s->d_desc)));
+        Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len,
+                s->static_len));
+        /* At this point, opt_len and static_len are the total bit lengths of
+         * the compressed block data, excluding the tree representations.
+         */
+
+        /* Build the bit length tree for the above two trees, and get the index
+         * in bl_order of the last bit length code to send.
+         */
+        max_blindex = build_bl_tree(s);
+
+        /* Determine the best encoding. Compute the block lengths in bytes. */
+        opt_lenb = (s->opt_len+3+7)>>3;
+        static_lenb = (s->static_len+3+7)>>3;
+
+        Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ",
+                opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len,
+                s->last_lit));
+
+        if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
+
+    } else {
+        Assert(buf != (char*)0, "lost buf");
+        opt_lenb = static_lenb = stored_len + 5; /* force a stored block */
+    }
+
+#ifdef FORCE_STORED
+    if (buf != (char*)0) { /* force stored block */
+#else
+    if (stored_len+4 <= opt_lenb && buf != (char*)0) {
+                       /* 4: two words for the lengths */
+#endif
+        /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
+         * Otherwise we can't have processed more than WSIZE input bytes since
+         * the last block flush, because compression would have been
+         * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
+         * transform a block into a stored block.
+         */
+        _tr_stored_block(s, buf, stored_len, last);
+
+#ifdef FORCE_STATIC
+    } else if (static_lenb >= 0) { /* force static trees */
+#else
+    } else if (s->strategy == Z_FIXED || static_lenb == opt_lenb) {
+#endif
+        send_bits(s, (STATIC_TREES<<1)+last, 3);
+        compress_block(s, (const ct_data *)static_ltree,
+                       (const ct_data *)static_dtree);
+#ifdef ZLIB_DEBUG
+        s->compressed_len += 3 + s->static_len;
+#endif
+    } else {
+        send_bits(s, (DYN_TREES<<1)+last, 3);
+        send_all_trees(s, s->l_desc.max_code+1, s->d_desc.max_code+1,
+                       max_blindex+1);
+        compress_block(s, (const ct_data *)s->dyn_ltree,
+                       (const ct_data *)s->dyn_dtree);
+#ifdef ZLIB_DEBUG
+        s->compressed_len += 3 + s->opt_len;
+#endif
+    }
+    Assert (s->compressed_len == s->bits_sent, "bad compressed size");
+    /* The above check is made mod 2^32, for files larger than 512 MB
+     * and uLong implemented on 32 bits.
+     */
+    init_block(s);
+
+    if (last) {
+        bi_windup(s);
+#ifdef ZLIB_DEBUG
+        s->compressed_len += 7;  /* align on byte boundary */
+#endif
+    }
+    Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3,
+           s->compressed_len-7*last));
+}
+
+/* ===========================================================================
+ * Save the match info and tally the frequency counts. Return true if
+ * the current block must be flushed.
+ */
+int ZLIB_INTERNAL _tr_tally (s, dist, lc)
+    deflate_state *s;
+    unsigned dist;  /* distance of matched string */
+    unsigned lc;    /* match length-MIN_MATCH or unmatched char (if dist==0) */
+{
+    s->d_buf[s->last_lit] = (ush)dist;
+    s->l_buf[s->last_lit++] = (uch)lc;
+    if (dist == 0) {
+        /* lc is the unmatched char */
+        s->dyn_ltree[lc].Freq++;
+    } else {
+        s->matches++;
+        /* Here, lc is the match length - MIN_MATCH */
+        dist--;             /* dist = match distance - 1 */
+        Assert((ush)dist < (ush)MAX_DIST(s) &&
+               (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
+               (ush)d_code(dist) < (ush)D_CODES,  "_tr_tally: bad match");
+
+        s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++;
+        s->dyn_dtree[d_code(dist)].Freq++;
+    }
+
+#ifdef TRUNCATE_BLOCK
+    /* Try to guess if it is profitable to stop the current block here */
+    if ((s->last_lit & 0x1fff) == 0 && s->level > 2) {
+        /* Compute an upper bound for the compressed length */
+        ulg out_length = (ulg)s->last_lit*8L;
+        ulg in_length = (ulg)((long)s->strstart - s->block_start);
+        int dcode;
+        for (dcode = 0; dcode < D_CODES; dcode++) {
+            out_length += (ulg)s->dyn_dtree[dcode].Freq *
+                (5L+extra_dbits[dcode]);
+        }
+        out_length >>= 3;
+        Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ",
+               s->last_lit, in_length, out_length,
+               100L - out_length*100L/in_length));
+        if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1;
+    }
+#endif
+    return (s->last_lit == s->lit_bufsize-1);
+    /* We avoid equality with lit_bufsize because of wraparound at 64K
+     * on 16 bit machines and because stored blocks are restricted to
+     * 64K-1 bytes.
+     */
+}
+
+/* ===========================================================================
+ * Send the block data compressed using the given Huffman trees
+ */
+local void compress_block(s, ltree, dtree)
+    deflate_state *s;
+    const ct_data *ltree; /* literal tree */
+    const ct_data *dtree; /* distance tree */
+{
+    unsigned dist;      /* distance of matched string */
+    int lc;             /* match length or unmatched char (if dist == 0) */
+    unsigned lx = 0;    /* running index in l_buf */
+    unsigned code;      /* the code to send */
+    int extra;          /* number of extra bits to send */
+
+    if (s->last_lit != 0) do {
+        dist = s->d_buf[lx];
+        lc = s->l_buf[lx++];
+        if (dist == 0) {
+            send_code(s, lc, ltree); /* send a literal byte */
+            Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+        } else {
+            /* Here, lc is the match length - MIN_MATCH */
+            code = _length_code[lc];
+            send_code(s, code+LITERALS+1, ltree); /* send the length code */
+            extra = extra_lbits[code];
+            if (extra != 0) {
+                lc -= base_length[code];
+                send_bits(s, lc, extra);       /* send the extra length bits */
+            }
+            dist--; /* dist is now the match distance - 1 */
+            code = d_code(dist);
+            Assert (code < D_CODES, "bad d_code");
+
+            send_code(s, code, dtree);       /* send the distance code */
+            extra = extra_dbits[code];
+            if (extra != 0) {
+                dist -= (unsigned)base_dist[code];
+                send_bits(s, dist, extra);   /* send the extra distance bits */
+            }
+        } /* literal or match pair ? */
+
+        /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */
+        Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx,
+               "pendingBuf overflow");
+
+    } while (lx < s->last_lit);
+
+    send_code(s, END_BLOCK, ltree);
+}
+
+/* ===========================================================================
+ * Check if the data type is TEXT or BINARY, using the following algorithm:
+ * - TEXT if the two conditions below are satisfied:
+ *    a) There are no non-portable control characters belonging to the
+ *       "black list" (0..6, 14..25, 28..31).
+ *    b) There is at least one printable character belonging to the
+ *       "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255).
+ * - BINARY otherwise.
+ * - The following partially-portable control characters form a
+ *   "gray list" that is ignored in this detection algorithm:
+ *   (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}).
+ * IN assertion: the fields Freq of dyn_ltree are set.
+ */
+local int detect_data_type(s)
+    deflate_state *s;
+{
+    /* black_mask is the bit mask of black-listed bytes
+     * set bits 0..6, 14..25, and 28..31
+     * 0xf3ffc07f = binary 11110011111111111100000001111111
+     */
+    unsigned long black_mask = 0xf3ffc07fUL;
+    int n;
+
+    /* Check for non-textual ("black-listed") bytes. */
+    for (n = 0; n <= 31; n++, black_mask >>= 1)
+        if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0))
+            return Z_BINARY;
+
+    /* Check for textual ("white-listed") bytes. */
+    if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0
+            || s->dyn_ltree[13].Freq != 0)
+        return Z_TEXT;
+    for (n = 32; n < LITERALS; n++)
+        if (s->dyn_ltree[n].Freq != 0)
+            return Z_TEXT;
+
+    /* There are no "black-listed" or "white-listed" bytes:
+     * this stream either is empty or has tolerated ("gray-listed") bytes only.
+     */
+    return Z_BINARY;
+}
+
+/* ===========================================================================
+ * Reverse the first len bits of a code, using straightforward code (a faster
+ * method would use a table)
+ * IN assertion: 1 <= len <= 15
+ */
+local unsigned bi_reverse(code, len)
+    unsigned code; /* the value to invert */
+    int len;       /* its bit length */
+{
+    register unsigned res = 0;
+    do {
+        res |= code & 1;
+        code >>= 1, res <<= 1;
+    } while (--len > 0);
+    return res >> 1;
+}
+
+/* ===========================================================================
+ * Flush the bit buffer, keeping at most 7 bits in it.
+ */
+local void bi_flush(s)
+    deflate_state *s;
+{
+    if (s->bi_valid == 16) {
+        put_short(s, s->bi_buf);
+        s->bi_buf = 0;
+        s->bi_valid = 0;
+    } else if (s->bi_valid >= 8) {
+        put_byte(s, (Byte)s->bi_buf);
+        s->bi_buf >>= 8;
+        s->bi_valid -= 8;
+    }
+}
+
+/* ===========================================================================
+ * Flush the bit buffer and align the output on a byte boundary
+ */
+local void bi_windup(s)
+    deflate_state *s;
+{
+    if (s->bi_valid > 8) {
+        put_short(s, s->bi_buf);
+    } else if (s->bi_valid > 0) {
+        put_byte(s, (Byte)s->bi_buf);
+    }
+    s->bi_buf = 0;
+    s->bi_valid = 0;
+#ifdef ZLIB_DEBUG
+    s->bits_sent = (s->bits_sent+7) & ~7;
+#endif
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/trees.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/trees.h
new file mode 100644
index 000000000..d35639d82
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/trees.h
@@ -0,0 +1,128 @@
+/* header created automatically with -DGEN_TREES_H */
+
+local const ct_data static_ltree[L_CODES+2] = {
+{{ 12},{  8}}, {{140},{  8}}, {{ 76},{  8}}, {{204},{  8}}, {{ 44},{  8}},
+{{172},{  8}}, {{108},{  8}}, {{236},{  8}}, {{ 28},{  8}}, {{156},{  8}},
+{{ 92},{  8}}, {{220},{  8}}, {{ 60},{  8}}, {{188},{  8}}, {{124},{  8}},
+{{252},{  8}}, {{  2},{  8}}, {{130},{  8}}, {{ 66},{  8}}, {{194},{  8}},
+{{ 34},{  8}}, {{162},{  8}}, {{ 98},{  8}}, {{226},{  8}}, {{ 18},{  8}},
+{{146},{  8}}, {{ 82},{  8}}, {{210},{  8}}, {{ 50},{  8}}, {{178},{  8}},
+{{114},{  8}}, {{242},{  8}}, {{ 10},{  8}}, {{138},{  8}}, {{ 74},{  8}},
+{{202},{  8}}, {{ 42},{  8}}, {{170},{  8}}, {{106},{  8}}, {{234},{  8}},
+{{ 26},{  8}}, {{154},{  8}}, {{ 90},{  8}}, {{218},{  8}}, {{ 58},{  8}},
+{{186},{  8}}, {{122},{  8}}, {{250},{  8}}, {{  6},{  8}}, {{134},{  8}},
+{{ 70},{  8}}, {{198},{  8}}, {{ 38},{  8}}, {{166},{  8}}, {{102},{  8}},
+{{230},{  8}}, {{ 22},{  8}}, {{150},{  8}}, {{ 86},{  8}}, {{214},{  8}},
+{{ 54},{  8}}, {{182},{  8}}, {{118},{  8}}, {{246},{  8}}, {{ 14},{  8}},
+{{142},{  8}}, {{ 78},{  8}}, {{206},{  8}}, {{ 46},{  8}}, {{174},{  8}},
+{{110},{  8}}, {{238},{  8}}, {{ 30},{  8}}, {{158},{  8}}, {{ 94},{  8}},
+{{222},{  8}}, {{ 62},{  8}}, {{190},{  8}}, {{126},{  8}}, {{254},{  8}},
+{{  1},{  8}}, {{129},{  8}}, {{ 65},{  8}}, {{193},{  8}}, {{ 33},{  8}},
+{{161},{  8}}, {{ 97},{  8}}, {{225},{  8}}, {{ 17},{  8}}, {{145},{  8}},
+{{ 81},{  8}}, {{209},{  8}}, {{ 49},{  8}}, {{177},{  8}}, {{113},{  8}},
+{{241},{  8}}, {{  9},{  8}}, {{137},{  8}}, {{ 73},{  8}}, {{201},{  8}},
+{{ 41},{  8}}, {{169},{  8}}, {{105},{  8}}, {{233},{  8}}, {{ 25},{  8}},
+{{153},{  8}}, {{ 89},{  8}}, {{217},{  8}}, {{ 57},{  8}}, {{185},{  8}},
+{{121},{  8}}, {{249},{  8}}, {{  5},{  8}}, {{133},{  8}}, {{ 69},{  8}},
+{{197},{  8}}, {{ 37},{  8}}, {{165},{  8}}, {{101},{  8}}, {{229},{  8}},
+{{ 21},{  8}}, {{149},{  8}}, {{ 85},{  8}}, {{213},{  8}}, {{ 53},{  8}},
+{{181},{  8}}, {{117},{  8}}, {{245},{  8}}, {{ 13},{  8}}, {{141},{  8}},
+{{ 77},{  8}}, {{205},{  8}}, {{ 45},{  8}}, {{173},{  8}}, {{109},{  8}},
+{{237},{  8}}, {{ 29},{  8}}, {{157},{  8}}, {{ 93},{  8}}, {{221},{  8}},
+{{ 61},{  8}}, {{189},{  8}}, {{125},{  8}}, {{253},{  8}}, {{ 19},{  9}},
+{{275},{  9}}, {{147},{  9}}, {{403},{  9}}, {{ 83},{  9}}, {{339},{  9}},
+{{211},{  9}}, {{467},{  9}}, {{ 51},{  9}}, {{307},{  9}}, {{179},{  9}},
+{{435},{  9}}, {{115},{  9}}, {{371},{  9}}, {{243},{  9}}, {{499},{  9}},
+{{ 11},{  9}}, {{267},{  9}}, {{139},{  9}}, {{395},{  9}}, {{ 75},{  9}},
+{{331},{  9}}, {{203},{  9}}, {{459},{  9}}, {{ 43},{  9}}, {{299},{  9}},
+{{171},{  9}}, {{427},{  9}}, {{107},{  9}}, {{363},{  9}}, {{235},{  9}},
+{{491},{  9}}, {{ 27},{  9}}, {{283},{  9}}, {{155},{  9}}, {{411},{  9}},
+{{ 91},{  9}}, {{347},{  9}}, {{219},{  9}}, {{475},{  9}}, {{ 59},{  9}},
+{{315},{  9}}, {{187},{  9}}, {{443},{  9}}, {{123},{  9}}, {{379},{  9}},
+{{251},{  9}}, {{507},{  9}}, {{  7},{  9}}, {{263},{  9}}, {{135},{  9}},
+{{391},{  9}}, {{ 71},{  9}}, {{327},{  9}}, {{199},{  9}}, {{455},{  9}},
+{{ 39},{  9}}, {{295},{  9}}, {{167},{  9}}, {{423},{  9}}, {{103},{  9}},
+{{359},{  9}}, {{231},{  9}}, {{487},{  9}}, {{ 23},{  9}}, {{279},{  9}},
+{{151},{  9}}, {{407},{  9}}, {{ 87},{  9}}, {{343},{  9}}, {{215},{  9}},
+{{471},{  9}}, {{ 55},{  9}}, {{311},{  9}}, {{183},{  9}}, {{439},{  9}},
+{{119},{  9}}, {{375},{  9}}, {{247},{  9}}, {{503},{  9}}, {{ 15},{  9}},
+{{271},{  9}}, {{143},{  9}}, {{399},{  9}}, {{ 79},{  9}}, {{335},{  9}},
+{{207},{  9}}, {{463},{  9}}, {{ 47},{  9}}, {{303},{  9}}, {{175},{  9}},
+{{431},{  9}}, {{111},{  9}}, {{367},{  9}}, {{239},{  9}}, {{495},{  9}},
+{{ 31},{  9}}, {{287},{  9}}, {{159},{  9}}, {{415},{  9}}, {{ 95},{  9}},
+{{351},{  9}}, {{223},{  9}}, {{479},{  9}}, {{ 63},{  9}}, {{319},{  9}},
+{{191},{  9}}, {{447},{  9}}, {{127},{  9}}, {{383},{  9}}, {{255},{  9}},
+{{511},{  9}}, {{  0},{  7}}, {{ 64},{  7}}, {{ 32},{  7}}, {{ 96},{  7}},
+{{ 16},{  7}}, {{ 80},{  7}}, {{ 48},{  7}}, {{112},{  7}}, {{  8},{  7}},
+{{ 72},{  7}}, {{ 40},{  7}}, {{104},{  7}}, {{ 24},{  7}}, {{ 88},{  7}},
+{{ 56},{  7}}, {{120},{  7}}, {{  4},{  7}}, {{ 68},{  7}}, {{ 36},{  7}},
+{{100},{  7}}, {{ 20},{  7}}, {{ 84},{  7}}, {{ 52},{  7}}, {{116},{  7}},
+{{  3},{  8}}, {{131},{  8}}, {{ 67},{  8}}, {{195},{  8}}, {{ 35},{  8}},
+{{163},{  8}}, {{ 99},{  8}}, {{227},{  8}}
+};
+
+local const ct_data static_dtree[D_CODES] = {
+{{ 0},{ 5}}, {{16},{ 5}}, {{ 8},{ 5}}, {{24},{ 5}}, {{ 4},{ 5}},
+{{20},{ 5}}, {{12},{ 5}}, {{28},{ 5}}, {{ 2},{ 5}}, {{18},{ 5}},
+{{10},{ 5}}, {{26},{ 5}}, {{ 6},{ 5}}, {{22},{ 5}}, {{14},{ 5}},
+{{30},{ 5}}, {{ 1},{ 5}}, {{17},{ 5}}, {{ 9},{ 5}}, {{25},{ 5}},
+{{ 5},{ 5}}, {{21},{ 5}}, {{13},{ 5}}, {{29},{ 5}}, {{ 3},{ 5}},
+{{19},{ 5}}, {{11},{ 5}}, {{27},{ 5}}, {{ 7},{ 5}}, {{23},{ 5}}
+};
+
+const uch ZLIB_INTERNAL _dist_code[DIST_CODE_LEN] = {
+ 0,  1,  2,  3,  4,  4,  5,  5,  6,  6,  6,  6,  7,  7,  7,  7,  8,  8,  8,  8,
+ 8,  8,  8,  8,  9,  9,  9,  9,  9,  9,  9,  9, 10, 10, 10, 10, 10, 10, 10, 10,
+10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13,
+13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
+15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,  0,  0, 16, 17,
+18, 18, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22,
+23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27,
+27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
+};
+
+const uch ZLIB_INTERNAL _length_code[MAX_MATCH-MIN_MATCH+1]= {
+ 0,  1,  2,  3,  4,  5,  6,  7,  8,  8,  9,  9, 10, 10, 11, 11, 12, 12, 12, 12,
+13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16,
+17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19,
+19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
+22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23,
+23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26,
+26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28
+};
+
+local const int base_length[LENGTH_CODES] = {
+0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 48, 56,
+64, 80, 96, 112, 128, 160, 192, 224, 0
+};
+
+local const int base_dist[D_CODES] = {
+    0,     1,     2,     3,     4,     6,     8,    12,    16,    24,
+   32,    48,    64,    96,   128,   192,   256,   384,   512,   768,
+ 1024,  1536,  2048,  3072,  4096,  6144,  8192, 12288, 16384, 24576
+};
+
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/uncompr.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/uncompr.c
new file mode 100644
index 000000000..f03a1a865
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/uncompr.c
@@ -0,0 +1,93 @@
+/* uncompr.c -- decompress a memory buffer
+ * Copyright (C) 1995-2003, 2010, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#define ZLIB_INTERNAL
+#include "zlib.h"
+
+/* ===========================================================================
+     Decompresses the source buffer into the destination buffer.  *sourceLen is
+   the byte length of the source buffer. Upon entry, *destLen is the total size
+   of the destination buffer, which must be large enough to hold the entire
+   uncompressed data. (The size of the uncompressed data must have been saved
+   previously by the compressor and transmitted to the decompressor by some
+   mechanism outside the scope of this compression library.) Upon exit,
+   *destLen is the size of the decompressed data and *sourceLen is the number
+   of source bytes consumed. Upon return, source + *sourceLen points to the
+   first unused input byte.
+
+     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_BUF_ERROR if there was not enough room in the output buffer, or
+   Z_DATA_ERROR if the input data was corrupted, including if the input data is
+   an incomplete zlib stream.
+*/
+int ZEXPORT uncompress2 (dest, destLen, source, sourceLen)
+    Bytef *dest;
+    uLongf *destLen;
+    const Bytef *source;
+    uLong *sourceLen;
+{
+    z_stream stream;
+    int err;
+    const uInt max = (uInt)-1;
+    uLong len, left;
+    Byte buf[1];    /* for detection of incomplete stream when *destLen == 0 */
+
+    len = *sourceLen;
+    if (*destLen) {
+        left = *destLen;
+        *destLen = 0;
+    }
+    else {
+        left = 1;
+        dest = buf;
+    }
+
+    stream.next_in = (z_const Bytef *)source;
+    stream.avail_in = 0;
+    stream.zalloc = (alloc_func)0;
+    stream.zfree = (free_func)0;
+    stream.opaque = (voidpf)0;
+
+    err = inflateInit(&stream);
+    if (err != Z_OK) return err;
+
+    stream.next_out = dest;
+    stream.avail_out = 0;
+
+    do {
+        if (stream.avail_out == 0) {
+            stream.avail_out = left > (uLong)max ? max : (uInt)left;
+            left -= stream.avail_out;
+        }
+        if (stream.avail_in == 0) {
+            stream.avail_in = len > (uLong)max ? max : (uInt)len;
+            len -= stream.avail_in;
+        }
+        err = inflate(&stream, Z_NO_FLUSH);
+    } while (err == Z_OK);
+
+    *sourceLen -= len + stream.avail_in;
+    if (dest != buf)
+        *destLen = stream.total_out;
+    else if (stream.total_out && err == Z_BUF_ERROR)
+        left = 1;
+
+    inflateEnd(&stream);
+    return err == Z_STREAM_END ? Z_OK :
+           err == Z_NEED_DICT ? Z_DATA_ERROR  :
+           err == Z_BUF_ERROR && left + stream.avail_out ? Z_DATA_ERROR :
+           err;
+}
+
+int ZEXPORT uncompress (dest, destLen, source, sourceLen)
+    Bytef *dest;
+    uLongf *destLen;
+    const Bytef *source;
+    uLong sourceLen;
+{
+    return uncompress2(dest, destLen, source, &sourceLen);
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/watcom/watcom_f.mak b/src/boost/libs/beast/test/extern/zlib-1.2.11/watcom/watcom_f.mak
new file mode 100644
index 000000000..37f4d74c1
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/watcom/watcom_f.mak
@@ -0,0 +1,43 @@
+# Makefile for zlib
+# OpenWatcom flat model
+# Last updated: 28-Dec-2005
+
+# To use, do "wmake -f watcom_f.mak"
+
+C_SOURCE =  adler32.c  compress.c crc32.c   deflate.c    &
+	    gzclose.c  gzlib.c    gzread.c  gzwrite.c    &
+            infback.c  inffast.c  inflate.c inftrees.c   &
+            trees.c    uncompr.c  zutil.c
+
+OBJS =      adler32.obj  compress.obj crc32.obj   deflate.obj    &
+	    gzclose.obj  gzlib.obj    gzread.obj  gzwrite.obj    &
+            infback.obj  inffast.obj  inflate.obj inftrees.obj   &
+            trees.obj    uncompr.obj  zutil.obj
+
+CC       = wcc386
+LINKER   = wcl386
+CFLAGS   = -zq -mf -3r -fp3 -s -bt=dos -oilrtfm -fr=nul -wx
+ZLIB_LIB = zlib_f.lib
+
+.C.OBJ:
+        $(CC) $(CFLAGS) $[@
+
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+$(ZLIB_LIB): $(OBJS)
+	wlib -b -c $(ZLIB_LIB) -+adler32.obj  -+compress.obj -+crc32.obj
+	wlib -b -c $(ZLIB_LIB) -+gzclose.obj  -+gzlib.obj    -+gzread.obj   -+gzwrite.obj
+        wlib -b -c $(ZLIB_LIB) -+deflate.obj  -+infback.obj
+        wlib -b -c $(ZLIB_LIB) -+inffast.obj  -+inflate.obj  -+inftrees.obj
+        wlib -b -c $(ZLIB_LIB) -+trees.obj    -+uncompr.obj  -+zutil.obj
+
+example.exe: $(ZLIB_LIB) example.obj
+	$(LINKER) -ldos32a -fe=example.exe example.obj $(ZLIB_LIB)
+
+minigzip.exe: $(ZLIB_LIB) minigzip.obj
+	$(LINKER) -ldos32a -fe=minigzip.exe minigzip.obj $(ZLIB_LIB)
+
+clean: .SYMBOLIC
+          del *.obj
+          del $(ZLIB_LIB)
+          @echo Cleaning done
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/watcom/watcom_l.mak b/src/boost/libs/beast/test/extern/zlib-1.2.11/watcom/watcom_l.mak
new file mode 100644
index 000000000..193eed7b3
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/watcom/watcom_l.mak
@@ -0,0 +1,43 @@
+# Makefile for zlib
+# OpenWatcom large model
+# Last updated: 28-Dec-2005
+
+# To use, do "wmake -f watcom_l.mak"
+
+C_SOURCE =  adler32.c  compress.c crc32.c   deflate.c    &
+	    gzclose.c  gzlib.c    gzread.c  gzwrite.c    &
+            infback.c  inffast.c  inflate.c inftrees.c   &
+            trees.c    uncompr.c  zutil.c
+
+OBJS =      adler32.obj  compress.obj crc32.obj   deflate.obj    &
+	    gzclose.obj  gzlib.obj    gzread.obj  gzwrite.obj    &
+            infback.obj  inffast.obj  inflate.obj inftrees.obj   &
+            trees.obj    uncompr.obj  zutil.obj
+
+CC       = wcc
+LINKER   = wcl
+CFLAGS   = -zq -ml -s -bt=dos -oilrtfm -fr=nul -wx
+ZLIB_LIB = zlib_l.lib
+
+.C.OBJ:
+        $(CC) $(CFLAGS) $[@
+
+all: $(ZLIB_LIB) example.exe minigzip.exe
+
+$(ZLIB_LIB): $(OBJS)
+	wlib -b -c $(ZLIB_LIB) -+adler32.obj  -+compress.obj -+crc32.obj
+	wlib -b -c $(ZLIB_LIB) -+gzclose.obj  -+gzlib.obj    -+gzread.obj   -+gzwrite.obj
+        wlib -b -c $(ZLIB_LIB) -+deflate.obj  -+infback.obj
+        wlib -b -c $(ZLIB_LIB) -+inffast.obj  -+inflate.obj  -+inftrees.obj
+        wlib -b -c $(ZLIB_LIB) -+trees.obj    -+uncompr.obj  -+zutil.obj
+
+example.exe: $(ZLIB_LIB) example.obj
+	$(LINKER) -fe=example.exe example.obj $(ZLIB_LIB)
+
+minigzip.exe: $(ZLIB_LIB) minigzip.obj
+	$(LINKER) -fe=minigzip.exe minigzip.obj $(ZLIB_LIB)
+
+clean: .SYMBOLIC
+          del *.obj
+          del $(ZLIB_LIB)
+          @echo Cleaning done
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h
new file mode 100644
index 000000000..5e1d68a00
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h
@@ -0,0 +1,534 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+   typedef unsigned long z_size_t;
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+#ifndef Z_ARG /* function prototypes for stdarg */
+#  if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#    define Z_ARG(args)  args
+#  else
+#    define Z_ARG(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
+#  define Z_HAVE_UNISTD_H
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h.cmakein b/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h.cmakein
new file mode 100644
index 000000000..a7f24cce6
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h.cmakein
@@ -0,0 +1,536 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+#cmakedefine Z_PREFIX
+#cmakedefine Z_HAVE_UNISTD_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+   typedef unsigned long z_size_t;
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+#ifndef Z_ARG /* function prototypes for stdarg */
+#  if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#    define Z_ARG(args)  args
+#  else
+#    define Z_ARG(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
+#  define Z_HAVE_UNISTD_H
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h.in b/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h.in
new file mode 100644
index 000000000..5e1d68a00
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zconf.h.in
@@ -0,0 +1,534 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+   typedef unsigned long z_size_t;
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+#ifndef Z_ARG /* function prototypes for stdarg */
+#  if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#    define Z_ARG(args)  args
+#  else
+#    define Z_ARG(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#if defined(__WATCOMC__) && !defined(Z_HAVE_UNISTD_H)
+#  define Z_HAVE_UNISTD_H
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__) && !defined(Z_SOLO)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.3 b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.3
new file mode 100644
index 000000000..bda4eb073
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.3
@@ -0,0 +1,149 @@
+.TH ZLIB 3 "15 Jan 2017"
+.SH NAME
+zlib \- compression/decompression library
+.SH SYNOPSIS
+[see
+.I zlib.h
+for full description]
+.SH DESCRIPTION
+The
+.I zlib
+library is a general purpose data compression library.
+The code is thread safe, assuming that the standard library functions
+used are thread safe, such as memory allocation routines.
+It provides in-memory compression and decompression functions,
+including integrity checks of the uncompressed data.
+This version of the library supports only one compression method (deflation)
+but other algorithms may be added later
+with the same stream interface.
+.LP
+Compression can be done in a single step if the buffers are large enough
+or can be done by repeated calls of the compression function.
+In the latter case,
+the application must provide more input and/or consume the output
+(providing more output space) before each call.
+.LP
+The library also supports reading and writing files in
+.IR gzip (1)
+(.gz) format
+with an interface similar to that of stdio.
+.LP
+The library does not install any signal handler.
+The decoder checks the consistency of the compressed data,
+so the library should never crash even in the case of corrupted input.
+.LP
+All functions of the compression library are documented in the file
+.IR zlib.h .
+The distribution source includes examples of use of the library
+in the files
+.I test/example.c
+and
+.IR test/minigzip.c,
+as well as other examples in the
+.IR examples/
+directory.
+.LP
+Changes to this version are documented in the file
+.I ChangeLog
+that accompanies the source.
+.LP
+.I zlib
+is built in to many languages and operating systems, including but not limited to
+Java, Python, .NET, PHP, Perl, Ruby, Swift, and Go.
+.LP
+An experimental package to read and write files in the .zip format,
+written on top of
+.I zlib
+by Gilles Vollant (info@winimage.com),
+is available at:
+.IP
+http://www.winimage.com/zLibDll/minizip.html
+and also in the
+.I contrib/minizip
+directory of the main
+.I zlib
+source distribution.
+.SH "SEE ALSO"
+The
+.I zlib
+web site can be found at:
+.IP
+http://zlib.net/
+.LP
+The data format used by the
+.I zlib
+library is described by RFC
+(Request for Comments) 1950 to 1952 in the files:
+.IP
+http://tools.ietf.org/html/rfc1950 (for the zlib header and trailer format)
+.br
+http://tools.ietf.org/html/rfc1951 (for the deflate compressed data format)
+.br
+http://tools.ietf.org/html/rfc1952 (for the gzip header and trailer format)
+.LP
+Mark Nelson wrote an article about
+.I zlib
+for the Jan. 1997 issue of  Dr. Dobb's Journal;
+a copy of the article is available at:
+.IP
+http://marknelson.us/1997/01/01/zlib-engine/
+.SH "REPORTING PROBLEMS"
+Before reporting a problem,
+please check the
+.I zlib
+web site to verify that you have the latest version of
+.IR zlib ;
+otherwise,
+obtain the latest version and see if the problem still exists.
+Please read the
+.I zlib
+FAQ at:
+.IP
+http://zlib.net/zlib_faq.html
+.LP
+before asking for help.
+Send questions and/or comments to zlib@gzip.org,
+or (for the Windows DLL version) to Gilles Vollant (info@winimage.com).
+.SH AUTHORS AND LICENSE
+Version 1.2.11
+.LP
+Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
+.LP
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+.LP
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+.LP
+.nr step 1 1
+.IP \n[step]. 3
+The origin of this software must not be misrepresented; you must not
+claim that you wrote the original software. If you use this software
+in a product, an acknowledgment in the product documentation would be
+appreciated but is not required.
+.IP \n+[step].
+Altered source versions must be plainly marked as such, and must not be
+misrepresented as being the original software.
+.IP \n+[step].
+This notice may not be removed or altered from any source distribution.
+.LP
+Jean-loup Gailly        Mark Adler
+.br
+jloup@gzip.org          madler@alumni.caltech.edu
+.LP
+The deflate format used by
+.I zlib
+was defined by Phil Katz.
+The deflate and
+.I zlib
+specifications were written by L. Peter Deutsch.
+Thanks to all the people who reported problems and suggested various
+improvements in
+.IR zlib ;
+who are too numerous to cite here.
+.LP
+UNIX manual page by R. P. C. Rodgers,
+U.S. National Library of Medicine (rodgers@nlm.nih.gov).
+.\" end of man page
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.3.pdf b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.3.pdf
new file mode 100644
index 000000000..6fa519c5b
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.3.pdf
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.h
new file mode 100644
index 000000000..f09cdaf1e
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.h
@@ -0,0 +1,1912 @@
+/* zlib.h -- interface of the 'zlib' general purpose compression library
+  version 1.2.11, January 15th, 2017
+
+  Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  Jean-loup Gailly        Mark Adler
+  jloup@gzip.org          madler@alumni.caltech.edu
+
+
+  The data format used by the zlib library is described by RFCs (Request for
+  Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
+  (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
+*/
+
+#ifndef ZLIB_H
+#define ZLIB_H
+
+#include "zconf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZLIB_VERSION "1.2.11"
+#define ZLIB_VERNUM 0x12b0
+#define ZLIB_VER_MAJOR 1
+#define ZLIB_VER_MINOR 2
+#define ZLIB_VER_REVISION 11
+#define ZLIB_VER_SUBREVISION 0
+
+/*
+    The 'zlib' compression library provides in-memory compression and
+  decompression functions, including integrity checks of the uncompressed data.
+  This version of the library supports only one compression method (deflation)
+  but other algorithms will be added later and will have the same stream
+  interface.
+
+    Compression can be done in a single step if the buffers are large enough,
+  or can be done by repeated calls of the compression function.  In the latter
+  case, the application must provide more input and/or consume the output
+  (providing more output space) before each call.
+
+    The compressed data format used by default by the in-memory functions is
+  the zlib format, which is a zlib wrapper documented in RFC 1950, wrapped
+  around a deflate stream, which is itself documented in RFC 1951.
+
+    The library also supports reading and writing files in gzip (.gz) format
+  with an interface similar to that of stdio using the functions that start
+  with "gz".  The gzip format is different from the zlib format.  gzip is a
+  gzip wrapper, documented in RFC 1952, wrapped around a deflate stream.
+
+    This library can optionally read and write gzip and raw deflate streams in
+  memory as well.
+
+    The zlib format was designed to be compact and fast for use in memory
+  and on communications channels.  The gzip format was designed for single-
+  file compression on file systems, has a larger header than zlib to maintain
+  directory information, and uses a different, slower check method than zlib.
+
+    The library does not install any signal handler.  The decoder checks
+  the consistency of the compressed data, so the library should never crash
+  even in the case of corrupted input.
+*/
+
+typedef voidpf (*alloc_func) OF((voidpf opaque, uInt items, uInt size));
+typedef void   (*free_func)  OF((voidpf opaque, voidpf address));
+
+struct internal_state;
+
+typedef struct z_stream_s {
+    z_const Bytef *next_in;     /* next input byte */
+    uInt     avail_in;  /* number of bytes available at next_in */
+    uLong    total_in;  /* total number of input bytes read so far */
+
+    Bytef    *next_out; /* next output byte will go here */
+    uInt     avail_out; /* remaining free space at next_out */
+    uLong    total_out; /* total number of bytes output so far */
+
+    z_const char *msg;  /* last error message, NULL if no error */
+    struct internal_state FAR *state; /* not visible by applications */
+
+    alloc_func zalloc;  /* used to allocate the internal state */
+    free_func  zfree;   /* used to free the internal state */
+    voidpf     opaque;  /* private data object passed to zalloc and zfree */
+
+    int     data_type;  /* best guess about the data type: binary or text
+                           for deflate, or the decoding state for inflate */
+    uLong   adler;      /* Adler-32 or CRC-32 value of the uncompressed data */
+    uLong   reserved;   /* reserved for future use */
+} z_stream;
+
+typedef z_stream FAR *z_streamp;
+
+/*
+     gzip header information passed to and from zlib routines.  See RFC 1952
+  for more details on the meanings of these fields.
+*/
+typedef struct gz_header_s {
+    int     text;       /* true if compressed data believed to be text */
+    uLong   time;       /* modification time */
+    int     xflags;     /* extra flags (not used when writing a gzip file) */
+    int     os;         /* operating system */
+    Bytef   *extra;     /* pointer to extra field or Z_NULL if none */
+    uInt    extra_len;  /* extra field length (valid if extra != Z_NULL) */
+    uInt    extra_max;  /* space at extra (only when reading header) */
+    Bytef   *name;      /* pointer to zero-terminated file name or Z_NULL */
+    uInt    name_max;   /* space at name (only when reading header) */
+    Bytef   *comment;   /* pointer to zero-terminated comment or Z_NULL */
+    uInt    comm_max;   /* space at comment (only when reading header) */
+    int     hcrc;       /* true if there was or will be a header crc */
+    int     done;       /* true when done reading gzip header (not used
+                           when writing a gzip file) */
+} gz_header;
+
+typedef gz_header FAR *gz_headerp;
+
+/*
+     The application must update next_in and avail_in when avail_in has dropped
+   to zero.  It must update next_out and avail_out when avail_out has dropped
+   to zero.  The application must initialize zalloc, zfree and opaque before
+   calling the init function.  All other fields are set by the compression
+   library and must not be updated by the application.
+
+     The opaque value provided by the application will be passed as the first
+   parameter for calls of zalloc and zfree.  This can be useful for custom
+   memory management.  The compression library attaches no meaning to the
+   opaque value.
+
+     zalloc must return Z_NULL if there is not enough memory for the object.
+   If zlib is used in a multi-threaded application, zalloc and zfree must be
+   thread safe.  In that case, zlib is thread-safe.  When zalloc and zfree are
+   Z_NULL on entry to the initialization function, they are set to internal
+   routines that use the standard library functions malloc() and free().
+
+     On 16-bit systems, the functions zalloc and zfree must be able to allocate
+   exactly 65536 bytes, but will not be required to allocate more than this if
+   the symbol MAXSEG_64K is defined (see zconf.h).  WARNING: On MSDOS, pointers
+   returned by zalloc for objects of exactly 65536 bytes *must* have their
+   offset normalized to zero.  The default allocation function provided by this
+   library ensures this (see zutil.c).  To reduce memory requirements and avoid
+   any allocation of 64K objects, at the expense of compression ratio, compile
+   the library with -DMAX_WBITS=14 (see zconf.h).
+
+     The fields total_in and total_out can be used for statistics or progress
+   reports.  After compression, total_in holds the total size of the
+   uncompressed data and may be saved for use by the decompressor (particularly
+   if the decompressor wants to decompress everything in a single step).
+*/
+
+                        /* constants */
+
+#define Z_NO_FLUSH      0
+#define Z_PARTIAL_FLUSH 1
+#define Z_SYNC_FLUSH    2
+#define Z_FULL_FLUSH    3
+#define Z_FINISH        4
+#define Z_BLOCK         5
+#define Z_TREES         6
+/* Allowed flush values; see deflate() and inflate() below for details */
+
+#define Z_OK            0
+#define Z_STREAM_END    1
+#define Z_NEED_DICT     2
+#define Z_ERRNO        (-1)
+#define Z_STREAM_ERROR (-2)
+#define Z_DATA_ERROR   (-3)
+#define Z_MEM_ERROR    (-4)
+#define Z_BUF_ERROR    (-5)
+#define Z_VERSION_ERROR (-6)
+/* Return codes for the compression/decompression functions. Negative values
+ * are errors, positive values are used for special but normal events.
+ */
+
+#define Z_NO_COMPRESSION         0
+#define Z_BEST_SPEED             1
+#define Z_BEST_COMPRESSION       9
+#define Z_DEFAULT_COMPRESSION  (-1)
+/* compression levels */
+
+#define Z_FILTERED            1
+#define Z_HUFFMAN_ONLY        2
+#define Z_RLE                 3
+#define Z_FIXED               4
+#define Z_DEFAULT_STRATEGY    0
+/* compression strategy; see deflateInit2() below for details */
+
+#define Z_BINARY   0
+#define Z_TEXT     1
+#define Z_ASCII    Z_TEXT   /* for compatibility with 1.2.2 and earlier */
+#define Z_UNKNOWN  2
+/* Possible values of the data_type field for deflate() */
+
+#define Z_DEFLATED   8
+/* The deflate compression method (the only one supported in this version) */
+
+#define Z_NULL  0  /* for initializing zalloc, zfree, opaque */
+
+#define zlib_version zlibVersion()
+/* for compatibility with versions < 1.0.2 */
+
+
+                        /* basic functions */
+
+ZEXTERN const char * ZEXPORT zlibVersion OF((void));
+/* The application can compare zlibVersion and ZLIB_VERSION for consistency.
+   If the first character differs, the library code actually used is not
+   compatible with the zlib.h header file used by the application.  This check
+   is automatically made by deflateInit and inflateInit.
+ */
+
+/*
+ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level));
+
+     Initializes the internal stream state for compression.  The fields
+   zalloc, zfree and opaque must be initialized before by the caller.  If
+   zalloc and zfree are set to Z_NULL, deflateInit updates them to use default
+   allocation functions.
+
+     The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9:
+   1 gives best speed, 9 gives best compression, 0 gives no compression at all
+   (the input data is simply copied a block at a time).  Z_DEFAULT_COMPRESSION
+   requests a default compromise between speed and compression (currently
+   equivalent to level 6).
+
+     deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_STREAM_ERROR if level is not a valid compression level, or
+   Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible
+   with the version assumed by the caller (ZLIB_VERSION).  msg is set to null
+   if there is no error message.  deflateInit does not perform any compression:
+   this will be done by deflate().
+*/
+
+
+ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush));
+/*
+    deflate compresses as much data as possible, and stops when the input
+  buffer becomes empty or the output buffer becomes full.  It may introduce
+  some output latency (reading input without producing any output) except when
+  forced to flush.
+
+    The detailed semantics are as follows.  deflate performs one or both of the
+  following actions:
+
+  - Compress more input starting at next_in and update next_in and avail_in
+    accordingly.  If not all input can be processed (because there is not
+    enough room in the output buffer), next_in and avail_in are updated and
+    processing will resume at this point for the next call of deflate().
+
+  - Generate more output starting at next_out and update next_out and avail_out
+    accordingly.  This action is forced if the parameter flush is non zero.
+    Forcing flush frequently degrades the compression ratio, so this parameter
+    should be set only when necessary.  Some output may be provided even if
+    flush is zero.
+
+    Before the call of deflate(), the application should ensure that at least
+  one of the actions is possible, by providing more input and/or consuming more
+  output, and updating avail_in or avail_out accordingly; avail_out should
+  never be zero before the call.  The application can consume the compressed
+  output when it wants, for example when the output buffer is full (avail_out
+  == 0), or after each call of deflate().  If deflate returns Z_OK and with
+  zero avail_out, it must be called again after making room in the output
+  buffer because there might be more output pending. See deflatePending(),
+  which can be used if desired to determine whether or not there is more ouput
+  in that case.
+
+    Normally the parameter flush is set to Z_NO_FLUSH, which allows deflate to
+  decide how much data to accumulate before producing output, in order to
+  maximize compression.
+
+    If the parameter flush is set to Z_SYNC_FLUSH, all pending output is
+  flushed to the output buffer and the output is aligned on a byte boundary, so
+  that the decompressor can get all input data available so far.  (In
+  particular avail_in is zero after the call if enough output space has been
+  provided before the call.) Flushing may degrade compression for some
+  compression algorithms and so it should be used only when necessary.  This
+  completes the current deflate block and follows it with an empty stored block
+  that is three bits plus filler bits to the next byte, followed by four bytes
+  (00 00 ff ff).
+
+    If flush is set to Z_PARTIAL_FLUSH, all pending output is flushed to the
+  output buffer, but the output is not aligned to a byte boundary.  All of the
+  input data so far will be available to the decompressor, as for Z_SYNC_FLUSH.
+  This completes the current deflate block and follows it with an empty fixed
+  codes block that is 10 bits long.  This assures that enough bytes are output
+  in order for the decompressor to finish the block before the empty fixed
+  codes block.
+
+    If flush is set to Z_BLOCK, a deflate block is completed and emitted, as
+  for Z_SYNC_FLUSH, but the output is not aligned on a byte boundary, and up to
+  seven bits of the current block are held to be written as the next byte after
+  the next deflate block is completed.  In this case, the decompressor may not
+  be provided enough bits at this point in order to complete decompression of
+  the data provided so far to the compressor.  It may need to wait for the next
+  block to be emitted.  This is for advanced applications that need to control
+  the emission of deflate blocks.
+
+    If flush is set to Z_FULL_FLUSH, all output is flushed as with
+  Z_SYNC_FLUSH, and the compression state is reset so that decompression can
+  restart from this point if previous compressed data has been damaged or if
+  random access is desired.  Using Z_FULL_FLUSH too often can seriously degrade
+  compression.
+
+    If deflate returns with avail_out == 0, this function must be called again
+  with the same value of the flush parameter and more output space (updated
+  avail_out), until the flush is complete (deflate returns with non-zero
+  avail_out).  In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that
+  avail_out is greater than six to avoid repeated flush markers due to
+  avail_out == 0 on return.
+
+    If the parameter flush is set to Z_FINISH, pending input is processed,
+  pending output is flushed and deflate returns with Z_STREAM_END if there was
+  enough output space.  If deflate returns with Z_OK or Z_BUF_ERROR, this
+  function must be called again with Z_FINISH and more output space (updated
+  avail_out) but no more input data, until it returns with Z_STREAM_END or an
+  error.  After deflate has returned Z_STREAM_END, the only possible operations
+  on the stream are deflateReset or deflateEnd.
+
+    Z_FINISH can be used in the first deflate call after deflateInit if all the
+  compression is to be done in a single step.  In order to complete in one
+  call, avail_out must be at least the value returned by deflateBound (see
+  below).  Then deflate is guaranteed to return Z_STREAM_END.  If not enough
+  output space is provided, deflate will not return Z_STREAM_END, and it must
+  be called again as described above.
+
+    deflate() sets strm->adler to the Adler-32 checksum of all input read
+  so far (that is, total_in bytes).  If a gzip stream is being generated, then
+  strm->adler will be the CRC-32 checksum of the input read so far.  (See
+  deflateInit2 below.)
+
+    deflate() may update strm->data_type if it can make a good guess about
+  the input data type (Z_BINARY or Z_TEXT).  If in doubt, the data is
+  considered binary.  This field is only for information purposes and does not
+  affect the compression algorithm in any manner.
+
+    deflate() returns Z_OK if some progress has been made (more input
+  processed or more output produced), Z_STREAM_END if all input has been
+  consumed and all output has been produced (only when flush is set to
+  Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example
+  if next_in or next_out was Z_NULL or the state was inadvertently written over
+  by the application), or Z_BUF_ERROR if no progress is possible (for example
+  avail_in or avail_out was zero).  Note that Z_BUF_ERROR is not fatal, and
+  deflate() can be called again with more input and more output space to
+  continue compressing.
+*/
+
+
+ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm));
+/*
+     All dynamically allocated data structures for this stream are freed.
+   This function discards any unprocessed input and does not flush any pending
+   output.
+
+     deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the
+   stream state was inconsistent, Z_DATA_ERROR if the stream was freed
+   prematurely (some input or output was discarded).  In the error case, msg
+   may be set but then points to a static string (which must not be
+   deallocated).
+*/
+
+
+/*
+ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm));
+
+     Initializes the internal stream state for decompression.  The fields
+   next_in, avail_in, zalloc, zfree and opaque must be initialized before by
+   the caller.  In the current version of inflate, the provided input is not
+   read or consumed.  The allocation of a sliding window will be deferred to
+   the first call of inflate (if the decompression does not complete on the
+   first call).  If zalloc and zfree are set to Z_NULL, inflateInit updates
+   them to use default allocation functions.
+
+     inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
+   version assumed by the caller, or Z_STREAM_ERROR if the parameters are
+   invalid, such as a null pointer to the structure.  msg is set to null if
+   there is no error message.  inflateInit does not perform any decompression.
+   Actual decompression will be done by inflate().  So next_in, and avail_in,
+   next_out, and avail_out are unused and unchanged.  The current
+   implementation of inflateInit() does not process any header information --
+   that is deferred until inflate() is called.
+*/
+
+
+ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));
+/*
+    inflate decompresses as much data as possible, and stops when the input
+  buffer becomes empty or the output buffer becomes full.  It may introduce
+  some output latency (reading input without producing any output) except when
+  forced to flush.
+
+  The detailed semantics are as follows.  inflate performs one or both of the
+  following actions:
+
+  - Decompress more input starting at next_in and update next_in and avail_in
+    accordingly.  If not all input can be processed (because there is not
+    enough room in the output buffer), then next_in and avail_in are updated
+    accordingly, and processing will resume at this point for the next call of
+    inflate().
+
+  - Generate more output starting at next_out and update next_out and avail_out
+    accordingly.  inflate() provides as much output as possible, until there is
+    no more input data or no more space in the output buffer (see below about
+    the flush parameter).
+
+    Before the call of inflate(), the application should ensure that at least
+  one of the actions is possible, by providing more input and/or consuming more
+  output, and updating the next_* and avail_* values accordingly.  If the
+  caller of inflate() does not provide both available input and available
+  output space, it is possible that there will be no progress made.  The
+  application can consume the uncompressed output when it wants, for example
+  when the output buffer is full (avail_out == 0), or after each call of
+  inflate().  If inflate returns Z_OK and with zero avail_out, it must be
+  called again after making room in the output buffer because there might be
+  more output pending.
+
+    The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FINISH,
+  Z_BLOCK, or Z_TREES.  Z_SYNC_FLUSH requests that inflate() flush as much
+  output as possible to the output buffer.  Z_BLOCK requests that inflate()
+  stop if and when it gets to the next deflate block boundary.  When decoding
+  the zlib or gzip format, this will cause inflate() to return immediately
+  after the header and before the first block.  When doing a raw inflate,
+  inflate() will go ahead and process the first block, and will return when it
+  gets to the end of that block, or when it runs out of data.
+
+    The Z_BLOCK option assists in appending to or combining deflate streams.
+  To assist in this, on return inflate() always sets strm->data_type to the
+  number of unused bits in the last byte taken from strm->next_in, plus 64 if
+  inflate() is currently decoding the last block in the deflate stream, plus
+  128 if inflate() returned immediately after decoding an end-of-block code or
+  decoding the complete header up to just before the first byte of the deflate
+  stream.  The end-of-block will not be indicated until all of the uncompressed
+  data from that block has been written to strm->next_out.  The number of
+  unused bits may in general be greater than seven, except when bit 7 of
+  data_type is set, in which case the number of unused bits will be less than
+  eight.  data_type is set as noted here every time inflate() returns for all
+  flush options, and so can be used to determine the amount of currently
+  consumed input in bits.
+
+    The Z_TREES option behaves as Z_BLOCK does, but it also returns when the
+  end of each deflate block header is reached, before any actual data in that
+  block is decoded.  This allows the caller to determine the length of the
+  deflate block header for later use in random access within a deflate block.
+  256 is added to the value of strm->data_type when inflate() returns
+  immediately after reaching the end of the deflate block header.
+
+    inflate() should normally be called until it returns Z_STREAM_END or an
+  error.  However if all decompression is to be performed in a single step (a
+  single call of inflate), the parameter flush should be set to Z_FINISH.  In
+  this case all pending input is processed and all pending output is flushed;
+  avail_out must be large enough to hold all of the uncompressed data for the
+  operation to complete.  (The size of the uncompressed data may have been
+  saved by the compressor for this purpose.)  The use of Z_FINISH is not
+  required to perform an inflation in one step.  However it may be used to
+  inform inflate that a faster approach can be used for the single inflate()
+  call.  Z_FINISH also informs inflate to not maintain a sliding window if the
+  stream completes, which reduces inflate's memory footprint.  If the stream
+  does not complete, either because not all of the stream is provided or not
+  enough output space is provided, then a sliding window will be allocated and
+  inflate() can be called again to continue the operation as if Z_NO_FLUSH had
+  been used.
+
+     In this implementation, inflate() always flushes as much output as
+  possible to the output buffer, and always uses the faster approach on the
+  first call.  So the effects of the flush parameter in this implementation are
+  on the return value of inflate() as noted below, when inflate() returns early
+  when Z_BLOCK or Z_TREES is used, and when inflate() avoids the allocation of
+  memory for a sliding window when Z_FINISH is used.
+
+     If a preset dictionary is needed after this call (see inflateSetDictionary
+  below), inflate sets strm->adler to the Adler-32 checksum of the dictionary
+  chosen by the compressor and returns Z_NEED_DICT; otherwise it sets
+  strm->adler to the Adler-32 checksum of all output produced so far (that is,
+  total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described
+  below.  At the end of the stream, inflate() checks that its computed Adler-32
+  checksum is equal to that saved by the compressor and returns Z_STREAM_END
+  only if the checksum is correct.
+
+    inflate() can decompress and check either zlib-wrapped or gzip-wrapped
+  deflate data.  The header type is detected automatically, if requested when
+  initializing with inflateInit2().  Any information contained in the gzip
+  header is not retained unless inflateGetHeader() is used.  When processing
+  gzip-wrapped deflate data, strm->adler32 is set to the CRC-32 of the output
+  produced so far.  The CRC-32 is checked against the gzip trailer, as is the
+  uncompressed length, modulo 2^32.
+
+    inflate() returns Z_OK if some progress has been made (more input processed
+  or more output produced), Z_STREAM_END if the end of the compressed data has
+  been reached and all uncompressed output has been produced, Z_NEED_DICT if a
+  preset dictionary is needed at this point, Z_DATA_ERROR if the input data was
+  corrupted (input stream not conforming to the zlib format or incorrect check
+  value, in which case strm->msg points to a string with a more specific
+  error), Z_STREAM_ERROR if the stream structure was inconsistent (for example
+  next_in or next_out was Z_NULL, or the state was inadvertently written over
+  by the application), Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR
+  if no progress was possible or if there was not enough room in the output
+  buffer when Z_FINISH is used.  Note that Z_BUF_ERROR is not fatal, and
+  inflate() can be called again with more input and more output space to
+  continue decompressing.  If Z_DATA_ERROR is returned, the application may
+  then call inflateSync() to look for a good compression block if a partial
+  recovery of the data is to be attempted.
+*/
+
+
+ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm));
+/*
+     All dynamically allocated data structures for this stream are freed.
+   This function discards any unprocessed input and does not flush any pending
+   output.
+
+     inflateEnd returns Z_OK if success, or Z_STREAM_ERROR if the stream state
+   was inconsistent.
+*/
+
+
+                        /* Advanced functions */
+
+/*
+    The following functions are needed only in some special applications.
+*/
+
+/*
+ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm,
+                                     int  level,
+                                     int  method,
+                                     int  windowBits,
+                                     int  memLevel,
+                                     int  strategy));
+
+     This is another version of deflateInit with more compression options.  The
+   fields next_in, zalloc, zfree and opaque must be initialized before by the
+   caller.
+
+     The method parameter is the compression method.  It must be Z_DEFLATED in
+   this version of the library.
+
+     The windowBits parameter is the base two logarithm of the window size
+   (the size of the history buffer).  It should be in the range 8..15 for this
+   version of the library.  Larger values of this parameter result in better
+   compression at the expense of memory usage.  The default value is 15 if
+   deflateInit is used instead.
+
+     For the current implementation of deflate(), a windowBits value of 8 (a
+   window size of 256 bytes) is not supported.  As a result, a request for 8
+   will result in 9 (a 512-byte window).  In that case, providing 8 to
+   inflateInit2() will result in an error when the zlib header with 9 is
+   checked against the initialization of inflate().  The remedy is to not use 8
+   with deflateInit2() with this initialization, or at least in that case use 9
+   with inflateInit2().
+
+     windowBits can also be -8..-15 for raw deflate.  In this case, -windowBits
+   determines the window size.  deflate() will then generate raw deflate data
+   with no zlib header or trailer, and will not compute a check value.
+
+     windowBits can also be greater than 15 for optional gzip encoding.  Add
+   16 to windowBits to write a simple gzip header and trailer around the
+   compressed data instead of a zlib wrapper.  The gzip header will have no
+   file name, no extra data, no comment, no modification time (set to zero), no
+   header crc, and the operating system will be set to the appropriate value,
+   if the operating system was determined at compile time.  If a gzip stream is
+   being written, strm->adler is a CRC-32 instead of an Adler-32.
+
+     For raw deflate or gzip encoding, a request for a 256-byte window is
+   rejected as invalid, since only the zlib header provides a means of
+   transmitting the window size to the decompressor.
+
+     The memLevel parameter specifies how much memory should be allocated
+   for the internal compression state.  memLevel=1 uses minimum memory but is
+   slow and reduces compression ratio; memLevel=9 uses maximum memory for
+   optimal speed.  The default value is 8.  See zconf.h for total memory usage
+   as a function of windowBits and memLevel.
+
+     The strategy parameter is used to tune the compression algorithm.  Use the
+   value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a
+   filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no
+   string match), or Z_RLE to limit match distances to one (run-length
+   encoding).  Filtered data consists mostly of small values with a somewhat
+   random distribution.  In this case, the compression algorithm is tuned to
+   compress them better.  The effect of Z_FILTERED is to force more Huffman
+   coding and less string matching; it is somewhat intermediate between
+   Z_DEFAULT_STRATEGY and Z_HUFFMAN_ONLY.  Z_RLE is designed to be almost as
+   fast as Z_HUFFMAN_ONLY, but give better compression for PNG image data.  The
+   strategy parameter only affects the compression ratio but not the
+   correctness of the compressed output even if it is not set appropriately.
+   Z_FIXED prevents the use of dynamic Huffman codes, allowing for a simpler
+   decoder for special applications.
+
+     deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_STREAM_ERROR if any parameter is invalid (such as an invalid
+   method), or Z_VERSION_ERROR if the zlib library version (zlib_version) is
+   incompatible with the version assumed by the caller (ZLIB_VERSION).  msg is
+   set to null if there is no error message.  deflateInit2 does not perform any
+   compression: this will be done by deflate().
+*/
+
+ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm,
+                                             const Bytef *dictionary,
+                                             uInt  dictLength));
+/*
+     Initializes the compression dictionary from the given byte sequence
+   without producing any compressed output.  When using the zlib format, this
+   function must be called immediately after deflateInit, deflateInit2 or
+   deflateReset, and before any call of deflate.  When doing raw deflate, this
+   function must be called either before any call of deflate, or immediately
+   after the completion of a deflate block, i.e. after all input has been
+   consumed and all output has been delivered when using any of the flush
+   options Z_BLOCK, Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, or Z_FULL_FLUSH.  The
+   compressor and decompressor must use exactly the same dictionary (see
+   inflateSetDictionary).
+
+     The dictionary should consist of strings (byte sequences) that are likely
+   to be encountered later in the data to be compressed, with the most commonly
+   used strings preferably put towards the end of the dictionary.  Using a
+   dictionary is most useful when the data to be compressed is short and can be
+   predicted with good accuracy; the data can then be compressed better than
+   with the default empty dictionary.
+
+     Depending on the size of the compression data structures selected by
+   deflateInit or deflateInit2, a part of the dictionary may in effect be
+   discarded, for example if the dictionary is larger than the window size
+   provided in deflateInit or deflateInit2.  Thus the strings most likely to be
+   useful should be put at the end of the dictionary, not at the front.  In
+   addition, the current implementation of deflate will use at most the window
+   size minus 262 bytes of the provided dictionary.
+
+     Upon return of this function, strm->adler is set to the Adler-32 value
+   of the dictionary; the decompressor may later use this value to determine
+   which dictionary has been used by the compressor.  (The Adler-32 value
+   applies to the whole dictionary even if only a subset of the dictionary is
+   actually used by the compressor.) If a raw deflate was requested, then the
+   Adler-32 value is not computed and strm->adler is not set.
+
+     deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a
+   parameter is invalid (e.g.  dictionary being Z_NULL) or the stream state is
+   inconsistent (for example if deflate has already been called for this stream
+   or if not at a block boundary for raw deflate).  deflateSetDictionary does
+   not perform any compression: this will be done by deflate().
+*/
+
+ZEXTERN int ZEXPORT deflateGetDictionary OF((z_streamp strm,
+                                             Bytef *dictionary,
+                                             uInt  *dictLength));
+/*
+     Returns the sliding dictionary being maintained by deflate.  dictLength is
+   set to the number of bytes in the dictionary, and that many bytes are copied
+   to dictionary.  dictionary must have enough space, where 32768 bytes is
+   always enough.  If deflateGetDictionary() is called with dictionary equal to
+   Z_NULL, then only the dictionary length is returned, and nothing is copied.
+   Similary, if dictLength is Z_NULL, then it is not set.
+
+     deflateGetDictionary() may return a length less than the window size, even
+   when more than the window size in input has been provided. It may return up
+   to 258 bytes less in that case, due to how zlib's implementation of deflate
+   manages the sliding window and lookahead for matches, where matches can be
+   up to 258 bytes long. If the application needs the last window-size bytes of
+   input, then that would need to be saved by the application outside of zlib.
+
+     deflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+   stream state is inconsistent.
+*/
+
+ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
+                                    z_streamp source));
+/*
+     Sets the destination stream as a complete copy of the source stream.
+
+     This function can be useful when several compression strategies will be
+   tried, for example when there are several ways of pre-processing the input
+   data with a filter.  The streams that will be discarded should then be freed
+   by calling deflateEnd.  Note that deflateCopy duplicates the internal
+   compression state which can be quite large, so this strategy is slow and can
+   consume lots of memory.
+
+     deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
+   (such as zalloc being Z_NULL).  msg is left unchanged in both source and
+   destination.
+*/
+
+ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm));
+/*
+     This function is equivalent to deflateEnd followed by deflateInit, but
+   does not free and reallocate the internal compression state.  The stream
+   will leave the compression level and any other attributes that may have been
+   set unchanged.
+
+     deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent (such as zalloc or state being Z_NULL).
+*/
+
+ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm,
+                                      int level,
+                                      int strategy));
+/*
+     Dynamically update the compression level and compression strategy.  The
+   interpretation of level and strategy is as in deflateInit2().  This can be
+   used to switch between compression and straight copy of the input data, or
+   to switch to a different kind of input data requiring a different strategy.
+   If the compression approach (which is a function of the level) or the
+   strategy is changed, and if any input has been consumed in a previous
+   deflate() call, then the input available so far is compressed with the old
+   level and strategy using deflate(strm, Z_BLOCK).  There are three approaches
+   for the compression levels 0, 1..3, and 4..9 respectively.  The new level
+   and strategy will take effect at the next call of deflate().
+
+     If a deflate(strm, Z_BLOCK) is performed by deflateParams(), and it does
+   not have enough output space to complete, then the parameter change will not
+   take effect.  In this case, deflateParams() can be called again with the
+   same parameters and more output space to try again.
+
+     In order to assure a change in the parameters on the first try, the
+   deflate stream should be flushed using deflate() with Z_BLOCK or other flush
+   request until strm.avail_out is not zero, before calling deflateParams().
+   Then no more input data should be provided before the deflateParams() call.
+   If this is done, the old level and strategy will be applied to the data
+   compressed before deflateParams(), and the new level and strategy will be
+   applied to the the data compressed after deflateParams().
+
+     deflateParams returns Z_OK on success, Z_STREAM_ERROR if the source stream
+   state was inconsistent or if a parameter was invalid, or Z_BUF_ERROR if
+   there was not enough output space to complete the compression of the
+   available input data before a change in the strategy or approach.  Note that
+   in the case of a Z_BUF_ERROR, the parameters are not changed.  A return
+   value of Z_BUF_ERROR is not fatal, in which case deflateParams() can be
+   retried with more output space.
+*/
+
+ZEXTERN int ZEXPORT deflateTune OF((z_streamp strm,
+                                    int good_length,
+                                    int max_lazy,
+                                    int nice_length,
+                                    int max_chain));
+/*
+     Fine tune deflate's internal compression parameters.  This should only be
+   used by someone who understands the algorithm used by zlib's deflate for
+   searching for the best matching string, and even then only by the most
+   fanatic optimizer trying to squeeze out the last compressed bit for their
+   specific input data.  Read the deflate.c source code for the meaning of the
+   max_lazy, good_length, nice_length, and max_chain parameters.
+
+     deflateTune() can be called after deflateInit() or deflateInit2(), and
+   returns Z_OK on success, or Z_STREAM_ERROR for an invalid deflate stream.
+ */
+
+ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm,
+                                       uLong sourceLen));
+/*
+     deflateBound() returns an upper bound on the compressed size after
+   deflation of sourceLen bytes.  It must be called after deflateInit() or
+   deflateInit2(), and after deflateSetHeader(), if used.  This would be used
+   to allocate an output buffer for deflation in a single pass, and so would be
+   called before deflate().  If that first deflate() call is provided the
+   sourceLen input bytes, an output buffer allocated to the size returned by
+   deflateBound(), and the flush value Z_FINISH, then deflate() is guaranteed
+   to return Z_STREAM_END.  Note that it is possible for the compressed size to
+   be larger than the value returned by deflateBound() if flush options other
+   than Z_FINISH or Z_NO_FLUSH are used.
+*/
+
+ZEXTERN int ZEXPORT deflatePending OF((z_streamp strm,
+                                       unsigned *pending,
+                                       int *bits));
+/*
+     deflatePending() returns the number of bytes and bits of output that have
+   been generated, but not yet provided in the available output.  The bytes not
+   provided would be due to the available output space having being consumed.
+   The number of bits of output not provided are between 0 and 7, where they
+   await more bits to join them in order to fill out a full byte.  If pending
+   or bits are Z_NULL, then those values are not set.
+
+     deflatePending returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+ */
+
+ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm,
+                                     int bits,
+                                     int value));
+/*
+     deflatePrime() inserts bits in the deflate output stream.  The intent
+   is that this function is used to start off the deflate output with the bits
+   leftover from a previous deflate stream when appending to it.  As such, this
+   function can only be used for raw deflate, and must be used before the first
+   deflate() call after a deflateInit2() or deflateReset().  bits must be less
+   than or equal to 16, and that many of the least significant bits of value
+   will be inserted in the output.
+
+     deflatePrime returns Z_OK if success, Z_BUF_ERROR if there was not enough
+   room in the internal buffer to insert the bits, or Z_STREAM_ERROR if the
+   source stream state was inconsistent.
+*/
+
+ZEXTERN int ZEXPORT deflateSetHeader OF((z_streamp strm,
+                                         gz_headerp head));
+/*
+     deflateSetHeader() provides gzip header information for when a gzip
+   stream is requested by deflateInit2().  deflateSetHeader() may be called
+   after deflateInit2() or deflateReset() and before the first call of
+   deflate().  The text, time, os, extra field, name, and comment information
+   in the provided gz_header structure are written to the gzip header (xflag is
+   ignored -- the extra flags are set according to the compression level).  The
+   caller must assure that, if not Z_NULL, name and comment are terminated with
+   a zero byte, and that if extra is not Z_NULL, that extra_len bytes are
+   available there.  If hcrc is true, a gzip header crc is included.  Note that
+   the current versions of the command-line version of gzip (up through version
+   1.3.x) do not support header crc's, and will report that it is a "multi-part
+   gzip file" and give up.
+
+     If deflateSetHeader is not used, the default gzip header has text false,
+   the time set to zero, and os set to 255, with no extra, name, or comment
+   fields.  The gzip header is returned to the default state by deflateReset().
+
+     deflateSetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+*/
+
+/*
+ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm,
+                                     int  windowBits));
+
+     This is another version of inflateInit with an extra parameter.  The
+   fields next_in, avail_in, zalloc, zfree and opaque must be initialized
+   before by the caller.
+
+     The windowBits parameter is the base two logarithm of the maximum window
+   size (the size of the history buffer).  It should be in the range 8..15 for
+   this version of the library.  The default value is 15 if inflateInit is used
+   instead.  windowBits must be greater than or equal to the windowBits value
+   provided to deflateInit2() while compressing, or it must be equal to 15 if
+   deflateInit2() was not used.  If a compressed stream with a larger window
+   size is given as input, inflate() will return with the error code
+   Z_DATA_ERROR instead of trying to allocate a larger window.
+
+     windowBits can also be zero to request that inflate use the window size in
+   the zlib header of the compressed stream.
+
+     windowBits can also be -8..-15 for raw inflate.  In this case, -windowBits
+   determines the window size.  inflate() will then process raw deflate data,
+   not looking for a zlib or gzip header, not generating a check value, and not
+   looking for any check values for comparison at the end of the stream.  This
+   is for use with other formats that use the deflate compressed data format
+   such as zip.  Those formats provide their own check values.  If a custom
+   format is developed using the raw deflate format for compressed data, it is
+   recommended that a check value such as an Adler-32 or a CRC-32 be applied to
+   the uncompressed data as is done in the zlib, gzip, and zip formats.  For
+   most applications, the zlib format should be used as is.  Note that comments
+   above on the use in deflateInit2() applies to the magnitude of windowBits.
+
+     windowBits can also be greater than 15 for optional gzip decoding.  Add
+   32 to windowBits to enable zlib and gzip decoding with automatic header
+   detection, or add 16 to decode only the gzip format (the zlib format will
+   return a Z_DATA_ERROR).  If a gzip stream is being decoded, strm->adler is a
+   CRC-32 instead of an Adler-32.  Unlike the gunzip utility and gzread() (see
+   below), inflate() will not automatically decode concatenated gzip streams.
+   inflate() will return Z_STREAM_END at the end of the gzip stream.  The state
+   would need to be reset to continue decoding a subsequent gzip stream.
+
+     inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_VERSION_ERROR if the zlib library version is incompatible with the
+   version assumed by the caller, or Z_STREAM_ERROR if the parameters are
+   invalid, such as a null pointer to the structure.  msg is set to null if
+   there is no error message.  inflateInit2 does not perform any decompression
+   apart from possibly reading the zlib header if present: actual decompression
+   will be done by inflate().  (So next_in and avail_in may be modified, but
+   next_out and avail_out are unused and unchanged.) The current implementation
+   of inflateInit2() does not process any header information -- that is
+   deferred until inflate() is called.
+*/
+
+ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm,
+                                             const Bytef *dictionary,
+                                             uInt  dictLength));
+/*
+     Initializes the decompression dictionary from the given uncompressed byte
+   sequence.  This function must be called immediately after a call of inflate,
+   if that call returned Z_NEED_DICT.  The dictionary chosen by the compressor
+   can be determined from the Adler-32 value returned by that call of inflate.
+   The compressor and decompressor must use exactly the same dictionary (see
+   deflateSetDictionary).  For raw inflate, this function can be called at any
+   time to set the dictionary.  If the provided dictionary is smaller than the
+   window and there is already data in the window, then the provided dictionary
+   will amend what's there.  The application must insure that the dictionary
+   that was used for compression is provided.
+
+     inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a
+   parameter is invalid (e.g.  dictionary being Z_NULL) or the stream state is
+   inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the
+   expected one (incorrect Adler-32 value).  inflateSetDictionary does not
+   perform any decompression: this will be done by subsequent calls of
+   inflate().
+*/
+
+ZEXTERN int ZEXPORT inflateGetDictionary OF((z_streamp strm,
+                                             Bytef *dictionary,
+                                             uInt  *dictLength));
+/*
+     Returns the sliding dictionary being maintained by inflate.  dictLength is
+   set to the number of bytes in the dictionary, and that many bytes are copied
+   to dictionary.  dictionary must have enough space, where 32768 bytes is
+   always enough.  If inflateGetDictionary() is called with dictionary equal to
+   Z_NULL, then only the dictionary length is returned, and nothing is copied.
+   Similary, if dictLength is Z_NULL, then it is not set.
+
+     inflateGetDictionary returns Z_OK on success, or Z_STREAM_ERROR if the
+   stream state is inconsistent.
+*/
+
+ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm));
+/*
+     Skips invalid compressed data until a possible full flush point (see above
+   for the description of deflate with Z_FULL_FLUSH) can be found, or until all
+   available input is skipped.  No output is provided.
+
+     inflateSync searches for a 00 00 FF FF pattern in the compressed data.
+   All full flush points have this pattern, but not all occurrences of this
+   pattern are full flush points.
+
+     inflateSync returns Z_OK if a possible full flush point has been found,
+   Z_BUF_ERROR if no more input was provided, Z_DATA_ERROR if no flush point
+   has been found, or Z_STREAM_ERROR if the stream structure was inconsistent.
+   In the success case, the application may save the current current value of
+   total_in which indicates where valid compressed data was found.  In the
+   error case, the application may repeatedly call inflateSync, providing more
+   input each time, until success or end of the input data.
+*/
+
+ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest,
+                                    z_streamp source));
+/*
+     Sets the destination stream as a complete copy of the source stream.
+
+     This function can be useful when randomly accessing a large stream.  The
+   first pass through the stream can periodically record the inflate state,
+   allowing restarting inflate at those points when randomly accessing the
+   stream.
+
+     inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_STREAM_ERROR if the source stream state was inconsistent
+   (such as zalloc being Z_NULL).  msg is left unchanged in both source and
+   destination.
+*/
+
+ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm));
+/*
+     This function is equivalent to inflateEnd followed by inflateInit,
+   but does not free and reallocate the internal decompression state.  The
+   stream will keep attributes that may have been set by inflateInit2.
+
+     inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent (such as zalloc or state being Z_NULL).
+*/
+
+ZEXTERN int ZEXPORT inflateReset2 OF((z_streamp strm,
+                                      int windowBits));
+/*
+     This function is the same as inflateReset, but it also permits changing
+   the wrap and window size requests.  The windowBits parameter is interpreted
+   the same as it is for inflateInit2.  If the window size is changed, then the
+   memory allocated for the window is freed, and the window will be reallocated
+   by inflate() if needed.
+
+     inflateReset2 returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent (such as zalloc or state being Z_NULL), or if
+   the windowBits parameter is invalid.
+*/
+
+ZEXTERN int ZEXPORT inflatePrime OF((z_streamp strm,
+                                     int bits,
+                                     int value));
+/*
+     This function inserts bits in the inflate input stream.  The intent is
+   that this function is used to start inflating at a bit position in the
+   middle of a byte.  The provided bits will be used before any bytes are used
+   from next_in.  This function should only be used with raw inflate, and
+   should be used before the first inflate() call after inflateInit2() or
+   inflateReset().  bits must be less than or equal to 16, and that many of the
+   least significant bits of value will be inserted in the input.
+
+     If bits is negative, then the input stream bit buffer is emptied.  Then
+   inflatePrime() can be called again to put bits in the buffer.  This is used
+   to clear out bits leftover after feeding inflate a block description prior
+   to feeding inflate codes.
+
+     inflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+*/
+
+ZEXTERN long ZEXPORT inflateMark OF((z_streamp strm));
+/*
+     This function returns two values, one in the lower 16 bits of the return
+   value, and the other in the remaining upper bits, obtained by shifting the
+   return value down 16 bits.  If the upper value is -1 and the lower value is
+   zero, then inflate() is currently decoding information outside of a block.
+   If the upper value is -1 and the lower value is non-zero, then inflate is in
+   the middle of a stored block, with the lower value equaling the number of
+   bytes from the input remaining to copy.  If the upper value is not -1, then
+   it is the number of bits back from the current bit position in the input of
+   the code (literal or length/distance pair) currently being processed.  In
+   that case the lower value is the number of bytes already emitted for that
+   code.
+
+     A code is being processed if inflate is waiting for more input to complete
+   decoding of the code, or if it has completed decoding but is waiting for
+   more output space to write the literal or match data.
+
+     inflateMark() is used to mark locations in the input data for random
+   access, which may be at bit positions, and to note those cases where the
+   output of a code may span boundaries of random access blocks.  The current
+   location in the input stream can be determined from avail_in and data_type
+   as noted in the description for the Z_BLOCK flush parameter for inflate.
+
+     inflateMark returns the value noted above, or -65536 if the provided
+   source stream state was inconsistent.
+*/
+
+ZEXTERN int ZEXPORT inflateGetHeader OF((z_streamp strm,
+                                         gz_headerp head));
+/*
+     inflateGetHeader() requests that gzip header information be stored in the
+   provided gz_header structure.  inflateGetHeader() may be called after
+   inflateInit2() or inflateReset(), and before the first call of inflate().
+   As inflate() processes the gzip stream, head->done is zero until the header
+   is completed, at which time head->done is set to one.  If a zlib stream is
+   being decoded, then head->done is set to -1 to indicate that there will be
+   no gzip header information forthcoming.  Note that Z_BLOCK or Z_TREES can be
+   used to force inflate() to return immediately after header processing is
+   complete and before any actual data is decompressed.
+
+     The text, time, xflags, and os fields are filled in with the gzip header
+   contents.  hcrc is set to true if there is a header CRC.  (The header CRC
+   was valid if done is set to one.) If extra is not Z_NULL, then extra_max
+   contains the maximum number of bytes to write to extra.  Once done is true,
+   extra_len contains the actual extra field length, and extra contains the
+   extra field, or that field truncated if extra_max is less than extra_len.
+   If name is not Z_NULL, then up to name_max characters are written there,
+   terminated with a zero unless the length is greater than name_max.  If
+   comment is not Z_NULL, then up to comm_max characters are written there,
+   terminated with a zero unless the length is greater than comm_max.  When any
+   of extra, name, or comment are not Z_NULL and the respective field is not
+   present in the header, then that field is set to Z_NULL to signal its
+   absence.  This allows the use of deflateSetHeader() with the returned
+   structure to duplicate the header.  However if those fields are set to
+   allocated memory, then the application will need to save those pointers
+   elsewhere so that they can be eventually freed.
+
+     If inflateGetHeader is not used, then the header information is simply
+   discarded.  The header is always checked for validity, including the header
+   CRC if present.  inflateReset() will reset the process to discard the header
+   information.  The application would need to call inflateGetHeader() again to
+   retrieve the header from the next gzip stream.
+
+     inflateGetHeader returns Z_OK if success, or Z_STREAM_ERROR if the source
+   stream state was inconsistent.
+*/
+
+/*
+ZEXTERN int ZEXPORT inflateBackInit OF((z_streamp strm, int windowBits,
+                                        unsigned char FAR *window));
+
+     Initialize the internal stream state for decompression using inflateBack()
+   calls.  The fields zalloc, zfree and opaque in strm must be initialized
+   before the call.  If zalloc and zfree are Z_NULL, then the default library-
+   derived memory allocation routines are used.  windowBits is the base two
+   logarithm of the window size, in the range 8..15.  window is a caller
+   supplied buffer of that size.  Except for special applications where it is
+   assured that deflate was used with small window sizes, windowBits must be 15
+   and a 32K byte window must be supplied to be able to decompress general
+   deflate streams.
+
+     See inflateBack() for the usage of these routines.
+
+     inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of
+   the parameters are invalid, Z_MEM_ERROR if the internal state could not be
+   allocated, or Z_VERSION_ERROR if the version of the library does not match
+   the version of the header file.
+*/
+
+typedef unsigned (*in_func) OF((void FAR *,
+                                z_const unsigned char FAR * FAR *));
+typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned));
+
+ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
+                                    in_func in, void FAR *in_desc,
+                                    out_func out, void FAR *out_desc));
+/*
+     inflateBack() does a raw inflate with a single call using a call-back
+   interface for input and output.  This is potentially more efficient than
+   inflate() for file i/o applications, in that it avoids copying between the
+   output and the sliding window by simply making the window itself the output
+   buffer.  inflate() can be faster on modern CPUs when used with large
+   buffers.  inflateBack() trusts the application to not change the output
+   buffer passed by the output function, at least until inflateBack() returns.
+
+     inflateBackInit() must be called first to allocate the internal state
+   and to initialize the state with the user-provided window buffer.
+   inflateBack() may then be used multiple times to inflate a complete, raw
+   deflate stream with each call.  inflateBackEnd() is then called to free the
+   allocated state.
+
+     A raw deflate stream is one with no zlib or gzip header or trailer.
+   This routine would normally be used in a utility that reads zip or gzip
+   files and writes out uncompressed files.  The utility would decode the
+   header and process the trailer on its own, hence this routine expects only
+   the raw deflate stream to decompress.  This is different from the default
+   behavior of inflate(), which expects a zlib header and trailer around the
+   deflate stream.
+
+     inflateBack() uses two subroutines supplied by the caller that are then
+   called by inflateBack() for input and output.  inflateBack() calls those
+   routines until it reads a complete deflate stream and writes out all of the
+   uncompressed data, or until it encounters an error.  The function's
+   parameters and return types are defined above in the in_func and out_func
+   typedefs.  inflateBack() will call in(in_desc, &buf) which should return the
+   number of bytes of provided input, and a pointer to that input in buf.  If
+   there is no input available, in() must return zero -- buf is ignored in that
+   case -- and inflateBack() will return a buffer error.  inflateBack() will
+   call out(out_desc, buf, len) to write the uncompressed data buf[0..len-1].
+   out() should return zero on success, or non-zero on failure.  If out()
+   returns non-zero, inflateBack() will return with an error.  Neither in() nor
+   out() are permitted to change the contents of the window provided to
+   inflateBackInit(), which is also the buffer that out() uses to write from.
+   The length written by out() will be at most the window size.  Any non-zero
+   amount of input may be provided by in().
+
+     For convenience, inflateBack() can be provided input on the first call by
+   setting strm->next_in and strm->avail_in.  If that input is exhausted, then
+   in() will be called.  Therefore strm->next_in must be initialized before
+   calling inflateBack().  If strm->next_in is Z_NULL, then in() will be called
+   immediately for input.  If strm->next_in is not Z_NULL, then strm->avail_in
+   must also be initialized, and then if strm->avail_in is not zero, input will
+   initially be taken from strm->next_in[0 ..  strm->avail_in - 1].
+
+     The in_desc and out_desc parameters of inflateBack() is passed as the
+   first parameter of in() and out() respectively when they are called.  These
+   descriptors can be optionally used to pass any information that the caller-
+   supplied in() and out() functions need to do their job.
+
+     On return, inflateBack() will set strm->next_in and strm->avail_in to
+   pass back any unused input that was provided by the last in() call.  The
+   return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR
+   if in() or out() returned an error, Z_DATA_ERROR if there was a format error
+   in the deflate stream (in which case strm->msg is set to indicate the nature
+   of the error), or Z_STREAM_ERROR if the stream was not properly initialized.
+   In the case of Z_BUF_ERROR, an input or output error can be distinguished
+   using strm->next_in which will be Z_NULL only if in() returned an error.  If
+   strm->next_in is not Z_NULL, then the Z_BUF_ERROR was due to out() returning
+   non-zero.  (in() will always be called before out(), so strm->next_in is
+   assured to be defined if out() returns non-zero.)  Note that inflateBack()
+   cannot return Z_OK.
+*/
+
+ZEXTERN int ZEXPORT inflateBackEnd OF((z_streamp strm));
+/*
+     All memory allocated by inflateBackInit() is freed.
+
+     inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream
+   state was inconsistent.
+*/
+
+ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void));
+/* Return flags indicating compile-time options.
+
+    Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other:
+     1.0: size of uInt
+     3.2: size of uLong
+     5.4: size of voidpf (pointer)
+     7.6: size of z_off_t
+
+    Compiler, assembler, and debug options:
+     8: ZLIB_DEBUG
+     9: ASMV or ASMINF -- use ASM code
+     10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention
+     11: 0 (reserved)
+
+    One-time table building (smaller code, but not thread-safe if true):
+     12: BUILDFIXED -- build static block decoding tables when needed
+     13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed
+     14,15: 0 (reserved)
+
+    Library content (indicates missing functionality):
+     16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking
+                          deflate code when not needed)
+     17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect
+                    and decode gzip streams (to avoid linking crc code)
+     18-19: 0 (reserved)
+
+    Operation variations (changes in library functionality):
+     20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate
+     21: FASTEST -- deflate algorithm with only one, lowest compression level
+     22,23: 0 (reserved)
+
+    The sprintf variant used by gzprintf (zero is best):
+     24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format
+     25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure!
+     26: 0 = returns value, 1 = void -- 1 means inferred string length returned
+
+    Remainder:
+     27-31: 0 (reserved)
+ */
+
+#ifndef Z_SOLO
+
+                        /* utility functions */
+
+/*
+     The following utility functions are implemented on top of the basic
+   stream-oriented functions.  To simplify the interface, some default options
+   are assumed (compression level and memory usage, standard memory allocation
+   functions).  The source code of these utility functions can be modified if
+   you need special options.
+*/
+
+ZEXTERN int ZEXPORT compress OF((Bytef *dest,   uLongf *destLen,
+                                 const Bytef *source, uLong sourceLen));
+/*
+     Compresses the source buffer into the destination buffer.  sourceLen is
+   the byte length of the source buffer.  Upon entry, destLen is the total size
+   of the destination buffer, which must be at least the value returned by
+   compressBound(sourceLen).  Upon exit, destLen is the actual size of the
+   compressed data.  compress() is equivalent to compress2() with a level
+   parameter of Z_DEFAULT_COMPRESSION.
+
+     compress returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_BUF_ERROR if there was not enough room in the output
+   buffer.
+*/
+
+ZEXTERN int ZEXPORT compress2 OF((Bytef *dest,   uLongf *destLen,
+                                  const Bytef *source, uLong sourceLen,
+                                  int level));
+/*
+     Compresses the source buffer into the destination buffer.  The level
+   parameter has the same meaning as in deflateInit.  sourceLen is the byte
+   length of the source buffer.  Upon entry, destLen is the total size of the
+   destination buffer, which must be at least the value returned by
+   compressBound(sourceLen).  Upon exit, destLen is the actual size of the
+   compressed data.
+
+     compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough
+   memory, Z_BUF_ERROR if there was not enough room in the output buffer,
+   Z_STREAM_ERROR if the level parameter is invalid.
+*/
+
+ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen));
+/*
+     compressBound() returns an upper bound on the compressed size after
+   compress() or compress2() on sourceLen bytes.  It would be used before a
+   compress() or compress2() call to allocate the destination buffer.
+*/
+
+ZEXTERN int ZEXPORT uncompress OF((Bytef *dest,   uLongf *destLen,
+                                   const Bytef *source, uLong sourceLen));
+/*
+     Decompresses the source buffer into the destination buffer.  sourceLen is
+   the byte length of the source buffer.  Upon entry, destLen is the total size
+   of the destination buffer, which must be large enough to hold the entire
+   uncompressed data.  (The size of the uncompressed data must have been saved
+   previously by the compressor and transmitted to the decompressor by some
+   mechanism outside the scope of this compression library.) Upon exit, destLen
+   is the actual size of the uncompressed data.
+
+     uncompress returns Z_OK if success, Z_MEM_ERROR if there was not
+   enough memory, Z_BUF_ERROR if there was not enough room in the output
+   buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete.  In
+   the case where there is not enough room, uncompress() will fill the output
+   buffer with the uncompressed data up to that point.
+*/
+
+ZEXTERN int ZEXPORT uncompress2 OF((Bytef *dest,   uLongf *destLen,
+                                    const Bytef *source, uLong *sourceLen));
+/*
+     Same as uncompress, except that sourceLen is a pointer, where the
+   length of the source is *sourceLen.  On return, *sourceLen is the number of
+   source bytes consumed.
+*/
+
+                        /* gzip file access functions */
+
+/*
+     This library supports reading and writing files in gzip (.gz) format with
+   an interface similar to that of stdio, using the functions that start with
+   "gz".  The gzip format is different from the zlib format.  gzip is a gzip
+   wrapper, documented in RFC 1952, wrapped around a deflate stream.
+*/
+
+typedef struct gzFile_s *gzFile;    /* semi-opaque gzip file descriptor */
+
+/*
+ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode));
+
+     Opens a gzip (.gz) file for reading or writing.  The mode parameter is as
+   in fopen ("rb" or "wb") but can also include a compression level ("wb9") or
+   a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only
+   compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F'
+   for fixed code compression as in "wb9F".  (See the description of
+   deflateInit2 for more information about the strategy parameter.)  'T' will
+   request transparent writing or appending with no compression and not using
+   the gzip format.
+
+     "a" can be used instead of "w" to request that the gzip stream that will
+   be written be appended to the file.  "+" will result in an error, since
+   reading and writing to the same gzip file is not supported.  The addition of
+   "x" when writing will create the file exclusively, which fails if the file
+   already exists.  On systems that support it, the addition of "e" when
+   reading or writing will set the flag to close the file on an execve() call.
+
+     These functions, as well as gzip, will read and decode a sequence of gzip
+   streams in a file.  The append function of gzopen() can be used to create
+   such a file.  (Also see gzflush() for another way to do this.)  When
+   appending, gzopen does not test whether the file begins with a gzip stream,
+   nor does it look for the end of the gzip streams to begin appending.  gzopen
+   will simply append a gzip stream to the existing file.
+
+     gzopen can be used to read a file which is not in gzip format; in this
+   case gzread will directly read from the file without decompression.  When
+   reading, this will be detected automatically by looking for the magic two-
+   byte gzip header.
+
+     gzopen returns NULL if the file could not be opened, if there was
+   insufficient memory to allocate the gzFile state, or if an invalid mode was
+   specified (an 'r', 'w', or 'a' was not provided, or '+' was provided).
+   errno can be checked to determine if the reason gzopen failed was that the
+   file could not be opened.
+*/
+
+ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode));
+/*
+     gzdopen associates a gzFile with the file descriptor fd.  File descriptors
+   are obtained from calls like open, dup, creat, pipe or fileno (if the file
+   has been previously opened with fopen).  The mode parameter is as in gzopen.
+
+     The next call of gzclose on the returned gzFile will also close the file
+   descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor
+   fd.  If you want to keep fd open, use fd = dup(fd_keep); gz = gzdopen(fd,
+   mode);.  The duplicated descriptor should be saved to avoid a leak, since
+   gzdopen does not close fd if it fails.  If you are using fileno() to get the
+   file descriptor from a FILE *, then you will have to use dup() to avoid
+   double-close()ing the file descriptor.  Both gzclose() and fclose() will
+   close the associated file descriptor, so they need to have different file
+   descriptors.
+
+     gzdopen returns NULL if there was insufficient memory to allocate the
+   gzFile state, if an invalid mode was specified (an 'r', 'w', or 'a' was not
+   provided, or '+' was provided), or if fd is -1.  The file descriptor is not
+   used until the next gz* read, write, seek, or close operation, so gzdopen
+   will not detect if fd is invalid (unless fd is -1).
+*/
+
+ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size));
+/*
+     Set the internal buffer size used by this library's functions.  The
+   default buffer size is 8192 bytes.  This function must be called after
+   gzopen() or gzdopen(), and before any other calls that read or write the
+   file.  The buffer memory allocation is always deferred to the first read or
+   write.  Three times that size in buffer space is allocated.  A larger buffer
+   size of, for example, 64K or 128K bytes will noticeably increase the speed
+   of decompression (reading).
+
+     The new buffer size also affects the maximum length for gzprintf().
+
+     gzbuffer() returns 0 on success, or -1 on failure, such as being called
+   too late.
+*/
+
+ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy));
+/*
+     Dynamically update the compression level or strategy.  See the description
+   of deflateInit2 for the meaning of these parameters.  Previously provided
+   data is flushed before the parameter change.
+
+     gzsetparams returns Z_OK if success, Z_STREAM_ERROR if the file was not
+   opened for writing, Z_ERRNO if there is an error writing the flushed data,
+   or Z_MEM_ERROR if there is a memory allocation error.
+*/
+
+ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len));
+/*
+     Reads the given number of uncompressed bytes from the compressed file.  If
+   the input file is not in gzip format, gzread copies the given number of
+   bytes into the buffer directly from the file.
+
+     After reaching the end of a gzip stream in the input, gzread will continue
+   to read, looking for another gzip stream.  Any number of gzip streams may be
+   concatenated in the input file, and will all be decompressed by gzread().
+   If something other than a gzip stream is encountered after a gzip stream,
+   that remaining trailing garbage is ignored (and no error is returned).
+
+     gzread can be used to read a gzip file that is being concurrently written.
+   Upon reaching the end of the input, gzread will return with the available
+   data.  If the error code returned by gzerror is Z_OK or Z_BUF_ERROR, then
+   gzclearerr can be used to clear the end of file indicator in order to permit
+   gzread to be tried again.  Z_OK indicates that a gzip stream was completed
+   on the last gzread.  Z_BUF_ERROR indicates that the input file ended in the
+   middle of a gzip stream.  Note that gzread does not return -1 in the event
+   of an incomplete gzip stream.  This error is deferred until gzclose(), which
+   will return Z_BUF_ERROR if the last gzread ended in the middle of a gzip
+   stream.  Alternatively, gzerror can be used before gzclose to detect this
+   case.
+
+     gzread returns the number of uncompressed bytes actually read, less than
+   len for end of file, or -1 for error.  If len is too large to fit in an int,
+   then nothing is read, -1 is returned, and the error state is set to
+   Z_STREAM_ERROR.
+*/
+
+ZEXTERN z_size_t ZEXPORT gzfread OF((voidp buf, z_size_t size, z_size_t nitems,
+                                     gzFile file));
+/*
+     Read up to nitems items of size size from file to buf, otherwise operating
+   as gzread() does.  This duplicates the interface of stdio's fread(), with
+   size_t request and return types.  If the library defines size_t, then
+   z_size_t is identical to size_t.  If not, then z_size_t is an unsigned
+   integer type that can contain a pointer.
+
+     gzfread() returns the number of full items read of size size, or zero if
+   the end of the file was reached and a full item could not be read, or if
+   there was an error.  gzerror() must be consulted if zero is returned in
+   order to determine if there was an error.  If the multiplication of size and
+   nitems overflows, i.e. the product does not fit in a z_size_t, then nothing
+   is read, zero is returned, and the error state is set to Z_STREAM_ERROR.
+
+     In the event that the end of file is reached and only a partial item is
+   available at the end, i.e. the remaining uncompressed data length is not a
+   multiple of size, then the final partial item is nevetheless read into buf
+   and the end-of-file flag is set.  The length of the partial item read is not
+   provided, but could be inferred from the result of gztell().  This behavior
+   is the same as the behavior of fread() implementations in common libraries,
+   but it prevents the direct use of gzfread() to read a concurrently written
+   file, reseting and retrying on end-of-file, when size is not 1.
+*/
+
+ZEXTERN int ZEXPORT gzwrite OF((gzFile file,
+                                voidpc buf, unsigned len));
+/*
+     Writes the given number of uncompressed bytes into the compressed file.
+   gzwrite returns the number of uncompressed bytes written or 0 in case of
+   error.
+*/
+
+ZEXTERN z_size_t ZEXPORT gzfwrite OF((voidpc buf, z_size_t size,
+                                      z_size_t nitems, gzFile file));
+/*
+     gzfwrite() writes nitems items of size size from buf to file, duplicating
+   the interface of stdio's fwrite(), with size_t request and return types.  If
+   the library defines size_t, then z_size_t is identical to size_t.  If not,
+   then z_size_t is an unsigned integer type that can contain a pointer.
+
+     gzfwrite() returns the number of full items written of size size, or zero
+   if there was an error.  If the multiplication of size and nitems overflows,
+   i.e. the product does not fit in a z_size_t, then nothing is written, zero
+   is returned, and the error state is set to Z_STREAM_ERROR.
+*/
+
+ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...));
+/*
+     Converts, formats, and writes the arguments to the compressed file under
+   control of the format string, as in fprintf.  gzprintf returns the number of
+   uncompressed bytes actually written, or a negative zlib error code in case
+   of error.  The number of uncompressed bytes written is limited to 8191, or
+   one less than the buffer size given to gzbuffer().  The caller should assure
+   that this limit is not exceeded.  If it is exceeded, then gzprintf() will
+   return an error (0) with nothing written.  In this case, there may also be a
+   buffer overflow with unpredictable consequences, which is possible only if
+   zlib was compiled with the insecure functions sprintf() or vsprintf()
+   because the secure snprintf() or vsnprintf() functions were not available.
+   This can be determined using zlibCompileFlags().
+*/
+
+ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s));
+/*
+     Writes the given null-terminated string to the compressed file, excluding
+   the terminating null character.
+
+     gzputs returns the number of characters written, or -1 in case of error.
+*/
+
+ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len));
+/*
+     Reads bytes from the compressed file until len-1 characters are read, or a
+   newline character is read and transferred to buf, or an end-of-file
+   condition is encountered.  If any characters are read or if len == 1, the
+   string is terminated with a null character.  If no characters are read due
+   to an end-of-file or len < 1, then the buffer is left untouched.
+
+     gzgets returns buf which is a null-terminated string, or it returns NULL
+   for end-of-file or in case of error.  If there was an error, the contents at
+   buf are indeterminate.
+*/
+
+ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c));
+/*
+     Writes c, converted to an unsigned char, into the compressed file.  gzputc
+   returns the value that was written, or -1 in case of error.
+*/
+
+ZEXTERN int ZEXPORT gzgetc OF((gzFile file));
+/*
+     Reads one byte from the compressed file.  gzgetc returns this byte or -1
+   in case of end of file or error.  This is implemented as a macro for speed.
+   As such, it does not do all of the checking the other functions do.  I.e.
+   it does not check to see if file is NULL, nor whether the structure file
+   points to has been clobbered or not.
+*/
+
+ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file));
+/*
+     Push one character back onto the stream to be read as the first character
+   on the next read.  At least one character of push-back is allowed.
+   gzungetc() returns the character pushed, or -1 on failure.  gzungetc() will
+   fail if c is -1, and may fail if a character has been pushed but not read
+   yet.  If gzungetc is used immediately after gzopen or gzdopen, at least the
+   output buffer size of pushed characters is allowed.  (See gzbuffer above.)
+   The pushed character will be discarded if the stream is repositioned with
+   gzseek() or gzrewind().
+*/
+
+ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush));
+/*
+     Flushes all pending output into the compressed file.  The parameter flush
+   is as in the deflate() function.  The return value is the zlib error number
+   (see function gzerror below).  gzflush is only permitted when writing.
+
+     If the flush parameter is Z_FINISH, the remaining data is written and the
+   gzip stream is completed in the output.  If gzwrite() is called again, a new
+   gzip stream will be started in the output.  gzread() is able to read such
+   concatenated gzip streams.
+
+     gzflush should be called only when strictly necessary because it will
+   degrade compression if called too often.
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file,
+                                   z_off_t offset, int whence));
+
+     Sets the starting position for the next gzread or gzwrite on the given
+   compressed file.  The offset represents a number of bytes in the
+   uncompressed data stream.  The whence parameter is defined as in lseek(2);
+   the value SEEK_END is not supported.
+
+     If the file is opened for reading, this function is emulated but can be
+   extremely slow.  If the file is opened for writing, only forward seeks are
+   supported; gzseek then compresses a sequence of zeroes up to the new
+   starting position.
+
+     gzseek returns the resulting offset location as measured in bytes from
+   the beginning of the uncompressed stream, or -1 in case of error, in
+   particular if the file is opened for writing and the new starting position
+   would be before the current position.
+*/
+
+ZEXTERN int ZEXPORT    gzrewind OF((gzFile file));
+/*
+     Rewinds the given file. This function is supported only for reading.
+
+     gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET)
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT    gztell OF((gzFile file));
+
+     Returns the starting position for the next gzread or gzwrite on the given
+   compressed file.  This position represents a number of bytes in the
+   uncompressed data stream, and is zero when starting, even if appending or
+   reading a gzip stream from the middle of a file using gzdopen().
+
+     gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR)
+*/
+
+/*
+ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file));
+
+     Returns the current offset in the file being read or written.  This offset
+   includes the count of bytes that precede the gzip stream, for example when
+   appending or when using gzdopen() for reading.  When reading, the offset
+   does not include as yet unused buffered input.  This information can be used
+   for a progress indicator.  On error, gzoffset() returns -1.
+*/
+
+ZEXTERN int ZEXPORT gzeof OF((gzFile file));
+/*
+     Returns true (1) if the end-of-file indicator has been set while reading,
+   false (0) otherwise.  Note that the end-of-file indicator is set only if the
+   read tried to go past the end of the input, but came up short.  Therefore,
+   just like feof(), gzeof() may return false even if there is no more data to
+   read, in the event that the last read request was for the exact number of
+   bytes remaining in the input file.  This will happen if the input file size
+   is an exact multiple of the buffer size.
+
+     If gzeof() returns true, then the read functions will return no more data,
+   unless the end-of-file indicator is reset by gzclearerr() and the input file
+   has grown since the previous end of file was detected.
+*/
+
+ZEXTERN int ZEXPORT gzdirect OF((gzFile file));
+/*
+     Returns true (1) if file is being copied directly while reading, or false
+   (0) if file is a gzip stream being decompressed.
+
+     If the input file is empty, gzdirect() will return true, since the input
+   does not contain a gzip stream.
+
+     If gzdirect() is used immediately after gzopen() or gzdopen() it will
+   cause buffers to be allocated to allow reading the file to determine if it
+   is a gzip file.  Therefore if gzbuffer() is used, it should be called before
+   gzdirect().
+
+     When writing, gzdirect() returns true (1) if transparent writing was
+   requested ("wT" for the gzopen() mode), or false (0) otherwise.  (Note:
+   gzdirect() is not needed when writing.  Transparent writing must be
+   explicitly requested, so the application already knows the answer.  When
+   linking statically, using gzdirect() will include all of the zlib code for
+   gzip file reading and decompression, which may not be desired.)
+*/
+
+ZEXTERN int ZEXPORT    gzclose OF((gzFile file));
+/*
+     Flushes all pending output if necessary, closes the compressed file and
+   deallocates the (de)compression state.  Note that once file is closed, you
+   cannot call gzerror with file, since its structures have been deallocated.
+   gzclose must not be called more than once on the same file, just as free
+   must not be called more than once on the same allocation.
+
+     gzclose will return Z_STREAM_ERROR if file is not valid, Z_ERRNO on a
+   file operation error, Z_MEM_ERROR if out of memory, Z_BUF_ERROR if the
+   last read ended in the middle of a gzip stream, or Z_OK on success.
+*/
+
+ZEXTERN int ZEXPORT gzclose_r OF((gzFile file));
+ZEXTERN int ZEXPORT gzclose_w OF((gzFile file));
+/*
+     Same as gzclose(), but gzclose_r() is only for use when reading, and
+   gzclose_w() is only for use when writing or appending.  The advantage to
+   using these instead of gzclose() is that they avoid linking in zlib
+   compression or decompression code that is not used when only reading or only
+   writing respectively.  If gzclose() is used, then both compression and
+   decompression code will be included the application when linking to a static
+   zlib library.
+*/
+
+ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum));
+/*
+     Returns the error message for the last error which occurred on the given
+   compressed file.  errnum is set to zlib error number.  If an error occurred
+   in the file system and not in the compression library, errnum is set to
+   Z_ERRNO and the application may consult errno to get the exact error code.
+
+     The application must not modify the returned string.  Future calls to
+   this function may invalidate the previously returned string.  If file is
+   closed, then the string previously returned by gzerror will no longer be
+   available.
+
+     gzerror() should be used to distinguish errors from end-of-file for those
+   functions above that do not distinguish those cases in their return values.
+*/
+
+ZEXTERN void ZEXPORT gzclearerr OF((gzFile file));
+/*
+     Clears the error and end-of-file flags for file.  This is analogous to the
+   clearerr() function in stdio.  This is useful for continuing to read a gzip
+   file that is being written concurrently.
+*/
+
+#endif /* !Z_SOLO */
+
+                        /* checksum functions */
+
+/*
+     These functions are not related to compression but are exported
+   anyway because they might be useful in applications using the compression
+   library.
+*/
+
+ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len));
+/*
+     Update a running Adler-32 checksum with the bytes buf[0..len-1] and
+   return the updated checksum.  If buf is Z_NULL, this function returns the
+   required initial value for the checksum.
+
+     An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed
+   much faster.
+
+   Usage example:
+
+     uLong adler = adler32(0L, Z_NULL, 0);
+
+     while (read_buffer(buffer, length) != EOF) {
+       adler = adler32(adler, buffer, length);
+     }
+     if (adler != original_adler) error();
+*/
+
+ZEXTERN uLong ZEXPORT adler32_z OF((uLong adler, const Bytef *buf,
+                                    z_size_t len));
+/*
+     Same as adler32(), but with a size_t length.
+*/
+
+/*
+ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2,
+                                          z_off_t len2));
+
+     Combine two Adler-32 checksums into one.  For two sequences of bytes, seq1
+   and seq2 with lengths len1 and len2, Adler-32 checksums were calculated for
+   each, adler1 and adler2.  adler32_combine() returns the Adler-32 checksum of
+   seq1 and seq2 concatenated, requiring only adler1, adler2, and len2.  Note
+   that the z_off_t type (like off_t) is a signed integer.  If len2 is
+   negative, the result has no meaning or utility.
+*/
+
+ZEXTERN uLong ZEXPORT crc32   OF((uLong crc, const Bytef *buf, uInt len));
+/*
+     Update a running CRC-32 with the bytes buf[0..len-1] and return the
+   updated CRC-32.  If buf is Z_NULL, this function returns the required
+   initial value for the crc.  Pre- and post-conditioning (one's complement) is
+   performed within this function so it shouldn't be done by the application.
+
+   Usage example:
+
+     uLong crc = crc32(0L, Z_NULL, 0);
+
+     while (read_buffer(buffer, length) != EOF) {
+       crc = crc32(crc, buffer, length);
+     }
+     if (crc != original_crc) error();
+*/
+
+ZEXTERN uLong ZEXPORT crc32_z OF((uLong adler, const Bytef *buf,
+                                  z_size_t len));
+/*
+     Same as crc32(), but with a size_t length.
+*/
+
+/*
+ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2));
+
+     Combine two CRC-32 check values into one.  For two sequences of bytes,
+   seq1 and seq2 with lengths len1 and len2, CRC-32 check values were
+   calculated for each, crc1 and crc2.  crc32_combine() returns the CRC-32
+   check value of seq1 and seq2 concatenated, requiring only crc1, crc2, and
+   len2.
+*/
+
+
+                        /* various hacks, don't look :) */
+
+/* deflateInit and inflateInit are macros to allow checking the zlib version
+ * and the compiler's view of z_stream:
+ */
+ZEXTERN int ZEXPORT deflateInit_ OF((z_streamp strm, int level,
+                                     const char *version, int stream_size));
+ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
+                                     const char *version, int stream_size));
+ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int  level, int  method,
+                                      int windowBits, int memLevel,
+                                      int strategy, const char *version,
+                                      int stream_size));
+ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int  windowBits,
+                                      const char *version, int stream_size));
+ZEXTERN int ZEXPORT inflateBackInit_ OF((z_streamp strm, int windowBits,
+                                         unsigned char FAR *window,
+                                         const char *version,
+                                         int stream_size));
+#ifdef Z_PREFIX_SET
+#  define z_deflateInit(strm, level) \
+          deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define z_inflateInit(strm) \
+          inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define z_deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+          deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+                        (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define z_inflateInit2(strm, windowBits) \
+          inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+                        (int)sizeof(z_stream))
+#  define z_inflateBackInit(strm, windowBits, window) \
+          inflateBackInit_((strm), (windowBits), (window), \
+                           ZLIB_VERSION, (int)sizeof(z_stream))
+#else
+#  define deflateInit(strm, level) \
+          deflateInit_((strm), (level), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define inflateInit(strm) \
+          inflateInit_((strm), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \
+          deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\
+                        (strategy), ZLIB_VERSION, (int)sizeof(z_stream))
+#  define inflateInit2(strm, windowBits) \
+          inflateInit2_((strm), (windowBits), ZLIB_VERSION, \
+                        (int)sizeof(z_stream))
+#  define inflateBackInit(strm, windowBits, window) \
+          inflateBackInit_((strm), (windowBits), (window), \
+                           ZLIB_VERSION, (int)sizeof(z_stream))
+#endif
+
+#ifndef Z_SOLO
+
+/* gzgetc() macro and its supporting function and exposed data structure.  Note
+ * that the real internal state is much larger than the exposed structure.
+ * This abbreviated structure exposes just enough for the gzgetc() macro.  The
+ * user should not mess with these exposed elements, since their names or
+ * behavior could change in the future, perhaps even capriciously.  They can
+ * only be used by the gzgetc() macro.  You have been warned.
+ */
+struct gzFile_s {
+    unsigned have;
+    unsigned char *next;
+    z_off64_t pos;
+};
+ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file));  /* backward compatibility */
+#ifdef Z_PREFIX_SET
+#  undef z_gzgetc
+#  define z_gzgetc(g) \
+          ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (gzgetc)(g))
+#else
+#  define gzgetc(g) \
+          ((g)->have ? ((g)->have--, (g)->pos++, *((g)->next)++) : (gzgetc)(g))
+#endif
+
+/* provide 64-bit offset functions if _LARGEFILE64_SOURCE defined, and/or
+ * change the regular functions to 64 bits if _FILE_OFFSET_BITS is 64 (if
+ * both are true, the application gets the *64 functions, and the regular
+ * functions are changed to 64 bits) -- in case these are set on systems
+ * without large file support, _LFS64_LARGEFILE must also be true
+ */
+#ifdef Z_LARGE64
+   ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
+   ZEXTERN z_off64_t ZEXPORT gzseek64 OF((gzFile, z_off64_t, int));
+   ZEXTERN z_off64_t ZEXPORT gztell64 OF((gzFile));
+   ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile));
+   ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t));
+   ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t));
+#endif
+
+#if !defined(ZLIB_INTERNAL) && defined(Z_WANT64)
+#  ifdef Z_PREFIX_SET
+#    define z_gzopen z_gzopen64
+#    define z_gzseek z_gzseek64
+#    define z_gztell z_gztell64
+#    define z_gzoffset z_gzoffset64
+#    define z_adler32_combine z_adler32_combine64
+#    define z_crc32_combine z_crc32_combine64
+#  else
+#    define gzopen gzopen64
+#    define gzseek gzseek64
+#    define gztell gztell64
+#    define gzoffset gzoffset64
+#    define adler32_combine adler32_combine64
+#    define crc32_combine crc32_combine64
+#  endif
+#  ifndef Z_LARGE64
+     ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *));
+     ZEXTERN z_off_t ZEXPORT gzseek64 OF((gzFile, z_off_t, int));
+     ZEXTERN z_off_t ZEXPORT gztell64 OF((gzFile));
+     ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile));
+     ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
+     ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
+#  endif
+#else
+   ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *));
+   ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile, z_off_t, int));
+   ZEXTERN z_off_t ZEXPORT gztell OF((gzFile));
+   ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile));
+   ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
+   ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
+#endif
+
+#else /* Z_SOLO */
+
+   ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t));
+   ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t));
+
+#endif /* !Z_SOLO */
+
+/* undocumented functions */
+ZEXTERN const char   * ZEXPORT zError           OF((int));
+ZEXTERN int            ZEXPORT inflateSyncPoint OF((z_streamp));
+ZEXTERN const z_crc_t FAR * ZEXPORT get_crc_table    OF((void));
+ZEXTERN int            ZEXPORT inflateUndermine OF((z_streamp, int));
+ZEXTERN int            ZEXPORT inflateValidate OF((z_streamp, int));
+ZEXTERN unsigned long  ZEXPORT inflateCodesUsed OF ((z_streamp));
+ZEXTERN int            ZEXPORT inflateResetKeep OF((z_streamp));
+ZEXTERN int            ZEXPORT deflateResetKeep OF((z_streamp));
+#if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(Z_SOLO)
+ZEXTERN gzFile         ZEXPORT gzopen_w OF((const wchar_t *path,
+                                            const char *mode));
+#endif
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+ZEXTERN int            ZEXPORTVA gzvprintf Z_ARG((gzFile file,
+                                                  const char *format,
+                                                  va_list va));
+#  endif
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ZLIB_H */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.map b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.map
new file mode 100644
index 000000000..82ce98cf7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.map
@@ -0,0 +1,94 @@
+ZLIB_1.2.0 {
+  global:
+    compressBound;
+    deflateBound;
+    inflateBack;
+    inflateBackEnd;
+    inflateBackInit_;
+    inflateCopy;
+  local:
+    deflate_copyright;
+    inflate_copyright;
+    inflate_fast;
+    inflate_table;
+    zcalloc;
+    zcfree;
+    z_errmsg;
+    gz_error;
+    gz_intmax;
+    _*;
+};
+
+ZLIB_1.2.0.2 {
+    gzclearerr;
+    gzungetc;
+    zlibCompileFlags;
+} ZLIB_1.2.0;
+
+ZLIB_1.2.0.8 {
+    deflatePrime;
+} ZLIB_1.2.0.2;
+
+ZLIB_1.2.2 {
+    adler32_combine;
+    crc32_combine;
+    deflateSetHeader;
+    inflateGetHeader;
+} ZLIB_1.2.0.8;
+
+ZLIB_1.2.2.3 {
+    deflateTune;
+    gzdirect;
+} ZLIB_1.2.2;
+
+ZLIB_1.2.2.4 {
+    inflatePrime;
+} ZLIB_1.2.2.3;
+
+ZLIB_1.2.3.3 {
+    adler32_combine64;
+    crc32_combine64;
+    gzopen64;
+    gzseek64;
+    gztell64;
+    inflateUndermine;
+} ZLIB_1.2.2.4;
+
+ZLIB_1.2.3.4 {
+    inflateReset2;
+    inflateMark;
+} ZLIB_1.2.3.3;
+
+ZLIB_1.2.3.5 {
+    gzbuffer;
+    gzoffset;
+    gzoffset64;
+    gzclose_r;
+    gzclose_w;
+} ZLIB_1.2.3.4;
+
+ZLIB_1.2.5.1 {
+    deflatePending;
+} ZLIB_1.2.3.5;
+
+ZLIB_1.2.5.2 {
+    deflateResetKeep;
+    gzgetc_;
+    inflateResetKeep;
+} ZLIB_1.2.5.1;
+
+ZLIB_1.2.7.1 {
+    inflateGetDictionary;
+    gzvprintf;
+} ZLIB_1.2.5.2;
+
+ZLIB_1.2.9 {
+    inflateCodesUsed;
+    inflateValidate;
+    uncompress2;
+    gzfread;
+    gzfwrite;
+    deflateGetDictionary;
+    adler32_z;
+    crc32_z;
+} ZLIB_1.2.7.1;
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.pc.cmakein b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.pc.cmakein
new file mode 100644
index 000000000..a5e642938
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.pc.cmakein
@@ -0,0 +1,13 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@INSTALL_LIB_DIR@
+sharedlibdir=@INSTALL_LIB_DIR@
+includedir=@INSTALL_INC_DIR@
+
+Name: zlib
+Description: zlib compression library
+Version: @VERSION@
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lz
+Cflags: -I${includedir}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.pc.in b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.pc.in
new file mode 100644
index 000000000..7e5acf9c7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib.pc.in
@@ -0,0 +1,13 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+sharedlibdir=@sharedlibdir@
+includedir=@includedir@
+
+Name: zlib
+Description: zlib compression library
+Version: @VERSION@
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lz
+Cflags: -I${includedir}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib2ansi b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib2ansi
new file mode 100644
index 000000000..15e3e165f
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zlib2ansi
@@ -0,0 +1,152 @@
+#!/usr/bin/perl
+
+# Transform K&R C function definitions into ANSI equivalent.
+#
+# Author: Paul Marquess
+# Version: 1.0
+# Date: 3 October 2006
+
+# TODO
+#
+# Asumes no function pointer parameters. unless they are typedefed.
+# Assumes no literal strings that look like function definitions
+# Assumes functions start at the beginning of a line
+
+use strict;
+use warnings;
+
+local $/;
+$_ = <>;
+
+my $sp = qr{ \s* (?: /\* .*? \*/ )? \s* }x; # assume no nested comments
+
+my $d1    = qr{ $sp (?: [\w\*\s]+ $sp)* $sp \w+ $sp [\[\]\s]* $sp }x ;
+my $decl  = qr{ $sp (?: \w+ $sp )+ $d1 }xo ;
+my $dList = qr{ $sp $decl (?: $sp , $d1 )* $sp ; $sp }xo ;
+
+
+while (s/^
+            (                  # Start $1
+                (              #   Start $2
+                    .*?        #     Minimal eat content
+                    ( ^ \w [\w\s\*]+ )    #     $3 -- function name
+                    \s*        #     optional whitespace
+                )              # $2 - Matched up to before parameter list
+
+                \( \s*         # Literal "(" + optional whitespace
+                ( [^\)]+ )     # $4 - one or more anythings except ")"
+                \s* \)         # optional whitespace surrounding a Literal ")"
+
+                ( (?: $dList )+ ) # $5
+
+                $sp ^ {        # literal "{" at start of line
+            )                  # Remember to $1
+        //xsom
+      )
+{
+    my $all = $1 ;
+    my $prefix = $2;
+    my $param_list = $4 ;
+    my $params = $5;
+
+    StripComments($params);
+    StripComments($param_list);
+    $param_list =~ s/^\s+//;
+    $param_list =~ s/\s+$//;
+
+    my $i = 0 ;
+    my %pList = map { $_ => $i++ }
+                split /\s*,\s*/, $param_list;
+    my $pMatch = '(\b' . join('|', keys %pList) . '\b)\W*$' ;
+
+    my @params = split /\s*;\s*/, $params;
+    my @outParams = ();
+    foreach my $p (@params)
+    {
+        if ($p =~ /,/)
+        {
+            my @bits = split /\s*,\s*/, $p;
+            my $first = shift @bits;
+            $first =~ s/^\s*//;
+            push @outParams, $first;
+            $first =~ /^(\w+\s*)/;
+            my $type = $1 ;
+            push @outParams, map { $type . $_ } @bits;
+        }
+        else
+        {
+            $p =~ s/^\s+//;
+            push @outParams, $p;
+        }
+    }
+
+
+    my %tmp = map { /$pMatch/;  $_ => $pList{$1}  }
+              @outParams ;
+
+    @outParams = map  { "    $_" }
+                 sort { $tmp{$a} <=> $tmp{$b} }
+                 @outParams ;
+
+    print $prefix ;
+    print "(\n" . join(",\n", @outParams) . ")\n";
+    print "{" ;
+
+}
+
+# Output any trailing code.
+print ;
+exit 0;
+
+
+sub StripComments
+{
+
+  no warnings;
+
+  # Strip C & C++ coments
+  # From the perlfaq
+  $_[0] =~
+
+    s{
+       /\*         ##  Start of /* ... */ comment
+       [^*]*\*+    ##  Non-* followed by 1-or-more *'s
+       (
+         [^/*][^*]*\*+
+       )*          ##  0-or-more things which don't start with /
+                   ##    but do end with '*'
+       /           ##  End of /* ... */ comment
+
+     |         ##     OR  C++ Comment
+       //          ## Start of C++ comment //
+       [^\n]*      ## followed by 0-or-more non end of line characters
+
+     |         ##     OR  various things which aren't comments:
+
+       (
+         "           ##  Start of " ... " string
+         (
+           \\.           ##  Escaped char
+         |               ##    OR
+           [^"\\]        ##  Non "\
+         )*
+         "           ##  End of " ... " string
+
+       |         ##     OR
+
+         '           ##  Start of ' ... ' string
+         (
+           \\.           ##  Escaped char
+         |               ##    OR
+           [^'\\]        ##  Non '\
+         )*
+         '           ##  End of ' ... ' string
+
+       |         ##     OR
+
+         .           ##  Anything other char
+         [^/"'\\]*   ##  Chars which doesn't start a comment, string or escape
+       )
+     }{$2}gxs;
+
+}
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zutil.c b/src/boost/libs/beast/test/extern/zlib-1.2.11/zutil.c
new file mode 100644
index 000000000..a76c6b0c7
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zutil.c
@@ -0,0 +1,325 @@
+/* zutil.c -- target dependent utility functions for the compression library
+ * Copyright (C) 1995-2017 Jean-loup Gailly
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#include "zutil.h"
+#ifndef Z_SOLO
+#  include "gzguts.h"
+#endif
+
+z_const char * const z_errmsg[10] = {
+    (z_const char *)"need dictionary",     /* Z_NEED_DICT       2  */
+    (z_const char *)"stream end",          /* Z_STREAM_END      1  */
+    (z_const char *)"",                    /* Z_OK              0  */
+    (z_const char *)"file error",          /* Z_ERRNO         (-1) */
+    (z_const char *)"stream error",        /* Z_STREAM_ERROR  (-2) */
+    (z_const char *)"data error",          /* Z_DATA_ERROR    (-3) */
+    (z_const char *)"insufficient memory", /* Z_MEM_ERROR     (-4) */
+    (z_const char *)"buffer error",        /* Z_BUF_ERROR     (-5) */
+    (z_const char *)"incompatible version",/* Z_VERSION_ERROR (-6) */
+    (z_const char *)""
+};
+
+
+const char * ZEXPORT zlibVersion()
+{
+    return ZLIB_VERSION;
+}
+
+uLong ZEXPORT zlibCompileFlags()
+{
+    uLong flags;
+
+    flags = 0;
+    switch ((int)(sizeof(uInt))) {
+    case 2:     break;
+    case 4:     flags += 1;     break;
+    case 8:     flags += 2;     break;
+    default:    flags += 3;
+    }
+    switch ((int)(sizeof(uLong))) {
+    case 2:     break;
+    case 4:     flags += 1 << 2;        break;
+    case 8:     flags += 2 << 2;        break;
+    default:    flags += 3 << 2;
+    }
+    switch ((int)(sizeof(voidpf))) {
+    case 2:     break;
+    case 4:     flags += 1 << 4;        break;
+    case 8:     flags += 2 << 4;        break;
+    default:    flags += 3 << 4;
+    }
+    switch ((int)(sizeof(z_off_t))) {
+    case 2:     break;
+    case 4:     flags += 1 << 6;        break;
+    case 8:     flags += 2 << 6;        break;
+    default:    flags += 3 << 6;
+    }
+#ifdef ZLIB_DEBUG
+    flags += 1 << 8;
+#endif
+#if defined(ASMV) || defined(ASMINF)
+    flags += 1 << 9;
+#endif
+#ifdef ZLIB_WINAPI
+    flags += 1 << 10;
+#endif
+#ifdef BUILDFIXED
+    flags += 1 << 12;
+#endif
+#ifdef DYNAMIC_CRC_TABLE
+    flags += 1 << 13;
+#endif
+#ifdef NO_GZCOMPRESS
+    flags += 1L << 16;
+#endif
+#ifdef NO_GZIP
+    flags += 1L << 17;
+#endif
+#ifdef PKZIP_BUG_WORKAROUND
+    flags += 1L << 20;
+#endif
+#ifdef FASTEST
+    flags += 1L << 21;
+#endif
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifdef NO_vsnprintf
+    flags += 1L << 25;
+#    ifdef HAS_vsprintf_void
+    flags += 1L << 26;
+#    endif
+#  else
+#    ifdef HAS_vsnprintf_void
+    flags += 1L << 26;
+#    endif
+#  endif
+#else
+    flags += 1L << 24;
+#  ifdef NO_snprintf
+    flags += 1L << 25;
+#    ifdef HAS_sprintf_void
+    flags += 1L << 26;
+#    endif
+#  else
+#    ifdef HAS_snprintf_void
+    flags += 1L << 26;
+#    endif
+#  endif
+#endif
+    return flags;
+}
+
+#ifdef ZLIB_DEBUG
+#include <stdlib.h>
+#  ifndef verbose
+#    define verbose 0
+#  endif
+int ZLIB_INTERNAL z_verbose = verbose;
+
+void ZLIB_INTERNAL z_error (m)
+    char *m;
+{
+    fprintf(stderr, "%s\n", m);
+    exit(1);
+}
+#endif
+
+/* exported to allow conversion of error code to string for compress() and
+ * uncompress()
+ */
+const char * ZEXPORT zError(err)
+    int err;
+{
+    return ERR_MSG(err);
+}
+
+#if defined(_WIN32_WCE)
+    /* The Microsoft C Run-Time Library for Windows CE doesn't have
+     * errno.  We define it as a global variable to simplify porting.
+     * Its value is always 0 and should not be used.
+     */
+    int errno = 0;
+#endif
+
+#ifndef HAVE_MEMCPY
+
+void ZLIB_INTERNAL zmemcpy(dest, source, len)
+    Bytef* dest;
+    const Bytef* source;
+    uInt  len;
+{
+    if (len == 0) return;
+    do {
+        *dest++ = *source++; /* ??? to be unrolled */
+    } while (--len != 0);
+}
+
+int ZLIB_INTERNAL zmemcmp(s1, s2, len)
+    const Bytef* s1;
+    const Bytef* s2;
+    uInt  len;
+{
+    uInt j;
+
+    for (j = 0; j < len; j++) {
+        if (s1[j] != s2[j]) return 2*(s1[j] > s2[j])-1;
+    }
+    return 0;
+}
+
+void ZLIB_INTERNAL zmemzero(dest, len)
+    Bytef* dest;
+    uInt  len;
+{
+    if (len == 0) return;
+    do {
+        *dest++ = 0;  /* ??? to be unrolled */
+    } while (--len != 0);
+}
+#endif
+
+#ifndef Z_SOLO
+
+#ifdef SYS16BIT
+
+#ifdef __TURBOC__
+/* Turbo C in 16-bit mode */
+
+#  define MY_ZCALLOC
+
+/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
+ * and farmalloc(64K) returns a pointer with an offset of 8, so we
+ * must fix the pointer. Warning: the pointer must be put back to its
+ * original form in order to free it, use zcfree().
+ */
+
+#define MAX_PTR 10
+/* 10*64K = 640K */
+
+local int next_ptr = 0;
+
+typedef struct ptr_table_s {
+    voidpf org_ptr;
+    voidpf new_ptr;
+} ptr_table;
+
+local ptr_table table[MAX_PTR];
+/* This table is used to remember the original form of pointers
+ * to large buffers (64K). Such pointers are normalized with a zero offset.
+ * Since MSDOS is not a preemptive multitasking OS, this table is not
+ * protected from concurrent access. This hack doesn't work anyway on
+ * a protected system like OS/2. Use Microsoft C instead.
+ */
+
+voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, unsigned items, unsigned size)
+{
+    voidpf buf;
+    ulg bsize = (ulg)items*size;
+
+    (void)opaque;
+
+    /* If we allocate less than 65520 bytes, we assume that farmalloc
+     * will return a usable pointer which doesn't have to be normalized.
+     */
+    if (bsize < 65520L) {
+        buf = farmalloc(bsize);
+        if (*(ush*)&buf != 0) return buf;
+    } else {
+        buf = farmalloc(bsize + 16L);
+    }
+    if (buf == NULL || next_ptr >= MAX_PTR) return NULL;
+    table[next_ptr].org_ptr = buf;
+
+    /* Normalize the pointer to seg:0 */
+    *((ush*)&buf+1) += ((ush)((uch*)buf-0) + 15) >> 4;
+    *(ush*)&buf = 0;
+    table[next_ptr++].new_ptr = buf;
+    return buf;
+}
+
+void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
+{
+    int n;
+
+    (void)opaque;
+
+    if (*(ush*)&ptr != 0) { /* object < 64K */
+        farfree(ptr);
+        return;
+    }
+    /* Find the original pointer */
+    for (n = 0; n < next_ptr; n++) {
+        if (ptr != table[n].new_ptr) continue;
+
+        farfree(table[n].org_ptr);
+        while (++n < next_ptr) {
+            table[n-1] = table[n];
+        }
+        next_ptr--;
+        return;
+    }
+    Assert(0, "zcfree: ptr not found");
+}
+
+#endif /* __TURBOC__ */
+
+
+#ifdef M_I86
+/* Microsoft C in 16-bit mode */
+
+#  define MY_ZCALLOC
+
+#if (!defined(_MSC_VER) || (_MSC_VER <= 600))
+#  define _halloc  halloc
+#  define _hfree   hfree
+#endif
+
+voidpf ZLIB_INTERNAL zcalloc (voidpf opaque, uInt items, uInt size)
+{
+    (void)opaque;
+    return _halloc((long)items, size);
+}
+
+void ZLIB_INTERNAL zcfree (voidpf opaque, voidpf ptr)
+{
+    (void)opaque;
+    _hfree(ptr);
+}
+
+#endif /* M_I86 */
+
+#endif /* SYS16BIT */
+
+
+#ifndef MY_ZCALLOC /* Any system without a special alloc function */
+
+#ifndef STDC
+extern voidp  malloc OF((uInt size));
+extern voidp  calloc OF((uInt items, uInt size));
+extern void   free   OF((voidpf ptr));
+#endif
+
+voidpf ZLIB_INTERNAL zcalloc (opaque, items, size)
+    voidpf opaque;
+    unsigned items;
+    unsigned size;
+{
+    (void)opaque;
+    return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) :
+                              (voidpf)calloc(items, size);
+}
+
+void ZLIB_INTERNAL zcfree (opaque, ptr)
+    voidpf opaque;
+    voidpf ptr;
+{
+    (void)opaque;
+    free(ptr);
+}
+
+#endif /* MY_ZCALLOC */
+
+#endif /* !Z_SOLO */
diff --git a/src/boost/libs/beast/test/extern/zlib-1.2.11/zutil.h b/src/boost/libs/beast/test/extern/zlib-1.2.11/zutil.h
new file mode 100644
index 000000000..b079ea6a8
--- /dev/null
+++ b/src/boost/libs/beast/test/extern/zlib-1.2.11/zutil.h
@@ -0,0 +1,271 @@
+/* zutil.h -- internal interface and configuration of the compression library
+ * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* WARNING: this file should *not* be used by applications. It is
+   part of the implementation of the compression library and is
+   subject to change. Applications should only use zlib.h.
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZUTIL_H
+#define ZUTIL_H
+
+#ifdef HAVE_HIDDEN
+#  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
+#else
+#  define ZLIB_INTERNAL
+#endif
+
+#include "zlib.h"
+
+#if defined(STDC) && !defined(Z_SOLO)
+#  if !(defined(_WIN32_WCE) && defined(_MSC_VER))
+#    include <stddef.h>
+#  endif
+#  include <string.h>
+#  include <stdlib.h>
+#endif
+
+#ifdef Z_SOLO
+   typedef long ptrdiff_t;  /* guess -- will be caught if guess is wrong */
+#endif
+
+#ifndef local
+#  define local static
+#endif
+/* since "static" is used to mean two completely different things in C, we
+   define "local" for the non-static meaning of "static", for readability
+   (compile with -Dlocal if your debugger can't find static symbols) */
+
+typedef unsigned char  uch;
+typedef uch FAR uchf;
+typedef unsigned short ush;
+typedef ush FAR ushf;
+typedef unsigned long  ulg;
+
+extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
+/* (size given to avoid silly warnings with Visual C++) */
+
+#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
+
+#define ERR_RETURN(strm,err) \
+  return (strm->msg = ERR_MSG(err), (err))
+/* To be used only when the state is known to be valid */
+
+        /* common constants */
+
+#ifndef DEF_WBITS
+#  define DEF_WBITS MAX_WBITS
+#endif
+/* default windowBits for decompression. MAX_WBITS is for compression only */
+
+#if MAX_MEM_LEVEL >= 8
+#  define DEF_MEM_LEVEL 8
+#else
+#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
+#endif
+/* default memLevel */
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES    2
+/* The three kinds of block type */
+
+#define MIN_MATCH  3
+#define MAX_MATCH  258
+/* The minimum and maximum match lengths */
+
+#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
+
+        /* target dependencies */
+
+#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
+#  define OS_CODE  0x00
+#  ifndef Z_SOLO
+#    if defined(__TURBOC__) || defined(__BORLANDC__)
+#      if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
+         /* Allow compilation with ANSI keywords only enabled */
+         void _Cdecl farfree( void *block );
+         void *_Cdecl farmalloc( unsigned long nbytes );
+#      else
+#        include <alloc.h>
+#      endif
+#    else /* MSC or DJGPP */
+#      include <malloc.h>
+#    endif
+#  endif
+#endif
+
+#ifdef AMIGA
+#  define OS_CODE  1
+#endif
+
+#if defined(VAXC) || defined(VMS)
+#  define OS_CODE  2
+#  define F_OPEN(name, mode) \
+     fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
+#endif
+
+#ifdef __370__
+#  if __TARGET_LIB__ < 0x20000000
+#    define OS_CODE 4
+#  elif __TARGET_LIB__ < 0x40000000
+#    define OS_CODE 11
+#  else
+#    define OS_CODE 8
+#  endif
+#endif
+
+#if defined(ATARI) || defined(atarist)
+#  define OS_CODE  5
+#endif
+
+#ifdef OS2
+#  define OS_CODE  6
+#  if defined(M_I86) && !defined(Z_SOLO)
+#    include <malloc.h>
+#  endif
+#endif
+
+#if defined(MACOS) || defined(TARGET_OS_MAC)
+#  define OS_CODE  7
+#  ifndef Z_SOLO
+#    if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
+#      include <unix.h> /* for fdopen */
+#    else
+#      ifndef fdopen
+#        define fdopen(fd,mode) NULL /* No fdopen() */
+#      endif
+#    endif
+#  endif
+#endif
+
+#ifdef __acorn
+#  define OS_CODE 13
+#endif
+
+#if defined(WIN32) && !defined(__CYGWIN__)
+#  define OS_CODE  10
+#endif
+
+#ifdef _BEOS_
+#  define OS_CODE  16
+#endif
+
+#ifdef __TOS_OS400__
+#  define OS_CODE 18
+#endif
+
+#ifdef __APPLE__
+#  define OS_CODE 19
+#endif
+
+#if defined(_BEOS_) || defined(RISCOS)
+#  define fdopen(fd,mode) NULL /* No fdopen() */
+#endif
+
+#if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
+#  if defined(_WIN32_WCE)
+#    define fdopen(fd,mode) NULL /* No fdopen() */
+#    ifndef _PTRDIFF_T_DEFINED
+       typedef int ptrdiff_t;
+#      define _PTRDIFF_T_DEFINED
+#    endif
+#  else
+#    define fdopen(fd,type)  _fdopen(fd,type)
+#  endif
+#endif
+
+#if defined(__BORLANDC__) && !defined(MSDOS)
+  #pragma warn -8004
+  #pragma warn -8008
+  #pragma warn -8066
+#endif
+
+/* provide prototypes for these when building zlib without LFS */
+#if !defined(_WIN32) && \
+    (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
+    ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
+    ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
+#endif
+
+        /* common defaults */
+
+#ifndef OS_CODE
+#  define OS_CODE  3     /* assume Unix */
+#endif
+
+#ifndef F_OPEN
+#  define F_OPEN(name, mode) fopen((name), (mode))
+#endif
+
+         /* functions */
+
+#if defined(pyr) || defined(Z_SOLO)
+#  define NO_MEMCPY
+#endif
+#if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
+ /* Use our own functions for small and medium model with MSC <= 5.0.
+  * You may have to use the same strategy for Borland C (untested).
+  * The __SC__ check is for Symantec.
+  */
+#  define NO_MEMCPY
+#endif
+#if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
+#  define HAVE_MEMCPY
+#endif
+#ifdef HAVE_MEMCPY
+#  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
+#    define zmemcpy _fmemcpy
+#    define zmemcmp _fmemcmp
+#    define zmemzero(dest, len) _fmemset(dest, 0, len)
+#  else
+#    define zmemcpy memcpy
+#    define zmemcmp memcmp
+#    define zmemzero(dest, len) memset(dest, 0, len)
+#  endif
+#else
+   void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
+   int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
+   void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
+#endif
+
+/* Diagnostic functions */
+#ifdef ZLIB_DEBUG
+#  include <stdio.h>
+   extern int ZLIB_INTERNAL z_verbose;
+   extern void ZLIB_INTERNAL z_error OF((char *m));
+#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
+#  define Trace(x) {if (z_verbose>=0) fprintf x ;}
+#  define Tracev(x) {if (z_verbose>0) fprintf x ;}
+#  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+#ifndef Z_SOLO
+   voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
+                                    unsigned size));
+   void ZLIB_INTERNAL zcfree  OF((voidpf opaque, voidpf ptr));
+#endif
+
+#define ZALLOC(strm, items, size) \
+           (*((strm)->zalloc))((strm)->opaque, (items), (size))
+#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
+#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
+
+/* Reverse the bytes in a 32-bit value */
+#define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
+                    (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
+
+#endif /* ZUTIL_H */
diff --git a/src/boost/libs/beast/test/extras/README.md b/src/boost/libs/beast/test/extras/README.md
new file mode 100644
index 000000000..ea6ffce9d
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/README.md
@@ -0,0 +1,3 @@
+# Extras
+
+These are not part of the official public Beast interface but they are used by the tests and some third party programs.
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/doc_debug.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/doc_debug.hpp
new file mode 100644
index 000000000..61c39b032
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/doc_debug.hpp
@@ -0,0 +1,170 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_BEAST_DOC_DEBUG_HPP
+#define BOOST_BEAST_DOC_DEBUG_HPP
+
+namespace beast {
+
+#if BOOST_BEAST_DOXYGEN
+
+/// doc type (documentation debug helper)
+using doc_type = int;
+
+/// doc enum (documentation debug helper)
+enum doc_enum
+{
+    /// One (documentation debug helper)
+    one,
+
+    /// Two (documentation debug helper)
+    two
+};
+
+/// doc enum class (documentation debug helper)
+enum class doc_enum_class : unsigned
+{
+    /// one (documentation debug helper)
+    one,
+
+    /// two (documentation debug helper)
+    two
+};
+
+/// doc func (documentation debug helper)
+void doc_func();
+
+/// doc class (documentation debug helper)
+struct doc_class
+{
+    /// doc class member func (documentation debug helper)
+    void func();
+};
+
+/// (documentation debug helper)
+namespace nested {
+
+/// doc type (documentation debug helper)
+using nested_doc_type = int;
+
+/// doc enum (documentation debug helper)
+enum nested_doc_enum
+{
+    /// One (documentation debug helper)
+    one,
+
+    /// Two (documentation debug helper)
+    two
+};
+
+/// doc enum class (documentation debug helper)
+enum class nested_doc_enum_class : unsigned
+{
+    /// one (documentation debug helper)
+    one,
+
+    /// two (documentation debug helper)
+    two
+};
+
+/// doc func (documentation debug helper)
+void nested_doc_func();
+
+/// doc class (documentation debug helper)
+struct nested_doc_class
+{
+    /// doc class member func (documentation debug helper)
+    void func();
+};
+
+} // nested
+
+/** This is here to help troubleshoot doc/reference.xsl problems
+
+    Embedded references:
+
+    @li type @ref doc_type
+
+    @li enum @ref doc_enum
+
+    @li enum item @ref doc_enum::one
+
+    @li enum_class @ref doc_enum_class
+
+    @li enum_class item @ref doc_enum_class::one
+
+    @li func @ref doc_func
+
+    @li class @ref doc_class
+
+    @li class func @ref doc_class::func
+
+    @li nested type @ref nested::nested_doc_type
+
+    @li nested enum @ref nested::nested_doc_enum
+
+    @li nested enum item @ref nested::nested_doc_enum::one
+
+    @li nested enum_class @ref nested::nested_doc_enum_class
+
+    @li nested enum_class item @ref nested::nested_doc_enum_class::one
+
+    @li nested func @ref nested::nested_doc_func
+
+    @li nested class @ref nested::nested_doc_class
+
+    @li nested class func @ref nested::nested_doc_class::func
+*/
+void doc_debug();
+
+namespace nested {
+
+/** This is here to help troubleshoot doc/reference.xsl problems
+
+    Embedded references:
+
+    @li type @ref doc_type
+
+    @li enum @ref doc_enum
+
+    @li enum item @ref doc_enum::one
+
+    @li enum_class @ref doc_enum_class
+
+    @li enum_class item @ref doc_enum_class::one
+
+    @li func @ref doc_func
+
+    @li class @ref doc_class
+
+    @li class func @ref doc_class::func
+
+    @li nested type @ref nested_doc_type
+
+    @li nested enum @ref nested_doc_enum
+
+    @li nested enum item @ref nested_doc_enum::one
+
+    @li nested enum_class @ref nested_doc_enum_class
+
+    @li nested enum_class item @ref nested_doc_enum_class::one
+
+    @li nested func @ref nested_doc_func
+
+    @li nested class @ref nested_doc_class
+
+    @li nested class func @ref nested_doc_class::func
+*/
+void nested_doc_debug();
+
+} // nested
+
+#endif
+
+} // beast
+
+#endif
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/test/fuzz.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/test/fuzz.hpp
new file mode 100644
index 000000000..5491b2e28
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/test/fuzz.hpp
@@ -0,0 +1,105 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_FUZZ_HPP
+#define BOOST_BEAST_TEST_FUZZ_HPP
+
+#include <boost/beast/core/static_string.hpp>
+#include <boost/beast/core/string.hpp>
+#include <random>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+class fuzz_rand
+{
+    std::mt19937 rng_;
+
+public:
+    std::mt19937&
+    rng()
+    {
+        return rng_;
+    }
+
+    template<class Unsigned>
+    Unsigned
+    operator()(Unsigned n)
+    {
+        return static_cast<Unsigned>(
+            std::uniform_int_distribution<
+                Unsigned>{0, n-1}(rng_));
+    }
+};
+
+template<std::size_t N, class Rand, class F>
+static
+void
+fuzz(
+    static_string<N> const& input,
+    std::size_t repeat,
+    std::size_t depth,
+    Rand& r,
+    F const& f)
+{
+    static_string<N> mod{input};
+    for(auto i = repeat; i; --i)
+    {
+        switch(r(4))
+        {
+        case 0: // insert
+            if(mod.size() >= mod.max_size())
+                continue;
+            mod.insert(r(mod.size() + 1), 1,
+                static_cast<char>(r(256)));
+            break;
+
+        case 1: // erase
+            if(mod.size() == 0)
+                continue;
+            mod.erase(r(mod.size()), 1);
+            break;
+
+        case 2: // swap
+        {
+            if(mod.size() <= 1)
+                continue;
+            auto off = r(mod.size() - 1);
+            auto const temp = mod[off];
+            mod[off] = mod[off + 1];
+            mod[off + 1] = temp;
+            break;
+        }
+        case 3: // repeat
+        {
+            if(mod.empty())
+                continue;
+            auto n = (std::min)(
+                std::geometric_distribution<
+                    std::size_t>{}(r.rng()),
+                mod.max_size() - mod.size());
+            if(n == 0)
+                continue;
+            auto off = r(mod.size());
+            mod.insert(off, n, mod[off + 1]);
+            break;
+        }
+        }
+        f(string_view{mod.data(), mod.size()});
+        if(depth > 0)
+            fuzz(mod, repeat, depth - 1, r, f);
+    }
+}
+
+} // test
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/test/sig_wait.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/test/sig_wait.hpp
new file mode 100644
index 000000000..96c41da16
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/test/sig_wait.hpp
@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_SIG_WAIT_HPP
+#define BOOST_BEAST_TEST_SIG_WAIT_HPP
+
+#include <boost/asio.hpp>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+/// Block until SIGINT or SIGTERM is received.
+inline
+void
+sig_wait()
+{
+    net::io_context ioc;
+    net::signal_set signals(
+        ioc, SIGINT, SIGTERM);
+    signals.async_wait(
+        [&](boost::system::error_code const&, int)
+        {
+        });
+    ioc.run();
+}
+
+} // test
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/test/test_allocator.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/test/test_allocator.hpp
new file mode 100644
index 000000000..b985c539f
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/test/test_allocator.hpp
@@ -0,0 +1,310 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_TEST_ALLOCATOR_HPP
+#define BOOST_BEAST_TEST_TEST_ALLOCATOR_HPP
+
+#include <atomic>
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+struct test_allocator_info
+{
+    std::size_t id;
+    std::size_t ncopy = 0;
+    std::size_t nmove = 0;
+    std::size_t nmassign = 0;
+    std::size_t ncpassign = 0;
+    std::size_t nselect = 0;
+    std::size_t max_size = (
+        std::numeric_limits<std::size_t>::max)();
+
+    test_allocator_info()
+        : id([]
+            {
+                static std::atomic<std::size_t> sid(0);
+                return ++sid;
+            }())
+    {
+    }
+};
+
+template<
+    class T,
+    bool Equal,
+    bool Assign,
+    bool Move,
+    bool Swap,
+    bool Select>
+class test_allocator;
+
+template<
+    class T,
+    bool Equal,
+    bool Assign,
+    bool Move,
+    bool Swap,
+    bool Select>
+struct test_allocator_base
+{
+};
+
+// Select == true
+template<
+    class T,
+    bool Equal,
+    bool Assign,
+    bool Move,
+    bool Swap>
+struct test_allocator_base<
+    T, Equal, Assign, Move, Swap, true>
+{
+    static
+    test_allocator<T, Equal, Assign, Move, Swap, true>
+    select_on_container_copy_construction(test_allocator<
+        T, Equal, Assign, Move, Swap, true> const&)
+    {
+        return test_allocator<T,
+            Equal, Assign, Move, Swap, true>{};
+    }
+};
+
+template<
+    class T,
+    bool Equal,
+    bool Assign,
+    bool Move,
+    bool Swap,
+    bool Select>
+class test_allocator
+    : public test_allocator_base<
+        T, Equal, Assign, Move, Swap, Select>
+{
+    std::shared_ptr<test_allocator_info> info_;
+
+    template<class, bool, bool, bool, bool, bool>
+    friend class test_allocator;
+
+public:
+    using value_type = T;
+
+    using propagate_on_container_copy_assignment =
+        std::integral_constant<bool, Assign>;
+
+    using propagate_on_container_move_assignment =
+        std::integral_constant<bool, Move>;
+
+    using propagate_on_container_swap =
+        std::integral_constant<bool, Swap>;
+
+    template<class U>
+    struct rebind
+    {
+        using other = test_allocator<U, Equal, Assign, Move, Swap, Select>;
+    };
+
+    test_allocator()
+        : info_(std::make_shared<
+            test_allocator_info>())
+    {
+    }
+
+    test_allocator(test_allocator const& u) noexcept
+        : info_(u.info_)
+    {
+        ++info_->ncopy;
+    }
+
+    template<class U>
+    test_allocator(test_allocator<U,
+            Equal, Assign, Move, Swap, Select> const& u) noexcept
+        : info_(u.info_)
+    {
+        ++info_->ncopy;
+    }
+
+    test_allocator(test_allocator&& t)
+        : info_(t.info_)
+    {
+        ++info_->nmove;
+    }
+
+    test_allocator&
+    operator=(test_allocator const& u) noexcept
+    {
+        info_ = u.info_;
+        ++info_->ncpassign;
+        return *this;
+    }
+
+    test_allocator&
+    operator=(test_allocator&& u) noexcept
+    {
+        info_ = u.info_;
+        ++info_->nmassign;
+        return *this;
+    }
+
+    value_type*
+    allocate(std::size_t n)
+    {
+        return static_cast<value_type*>(
+            ::operator new (n*sizeof(value_type)));
+    }
+
+    void
+    deallocate(value_type* p, std::size_t) noexcept
+    {
+        ::operator delete(p);
+    }
+
+    std::size_t
+    max_size() const
+    {
+        return info_->max_size;
+    }
+
+    void
+    max_size(std::size_t n)
+    {
+        info_->max_size = n;
+    }
+
+    bool
+    operator==(test_allocator const& other) const
+    {
+        return id() == other.id() || Equal;
+    }
+
+    bool
+    operator!=(test_allocator const& other) const
+    {
+        return ! this->operator==(other);
+    }
+
+    std::size_t
+    id() const
+    {
+        return info_->id;
+    }
+
+    test_allocator_info*
+    operator->() const
+    {
+        return info_.get();
+    }
+};
+
+//------------------------------------------------------------------------------
+
+#if 0
+struct allocator_info
+{
+    std::size_t const id;
+
+    allocator_info()
+        : id([]
+            {
+                static std::atomic<std::size_t> sid(0);
+                return ++sid;
+            }())
+    {
+    }
+};
+
+struct allocator_defaults
+{
+    static std::size_t constexpr max_size =
+        (std::numeric_limits<std::size_t>::max)();
+};
+
+template<
+    class T,
+    class Traits = allocator_defaults>
+struct allocator
+{
+public:
+    using value_type = T;
+
+#if 0
+    template<class U>
+    struct rebind
+    {
+        using other =
+            test_allocator<U, Traits>;
+    };
+#endif
+
+    allocator() = default;
+    allocator(allocator&& t) = default;
+    allocator(allocator const& u) = default;
+
+    template<
+        class U,
+        class = typename std::enable_if<
+            ! std::is_same<U, T>::value>::type>
+    allocator(
+        allocator<U, Traits> const& u) noexcept
+    {
+    }
+
+    allocator&
+    operator=(allocator&& u) noexcept
+    {
+        return *this;
+    }
+
+    allocator&
+    operator=(allocator const& u) noexcept
+    {
+        return *this;
+    }
+
+    value_type*
+    allocate(std::size_t n)
+    {
+        return static_cast<value_type*>(
+            ::operator new(n * sizeof(value_type)));
+    }
+
+    void
+    deallocate(value_type* p, std::size_t) noexcept
+    {
+        ::operator delete(p);
+    }
+
+    std::size_t
+    max_size() const
+    {
+    }
+
+    bool
+    operator==(test_allocator const& other) const
+    {
+        return id() == other.id() || Equal;
+    }
+
+    bool
+    operator!=(test_allocator const& other) const
+    {
+        return ! this->operator==(other);
+    }
+};
+#endif
+
+} // test
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/test/throughput.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/test/throughput.hpp
new file mode 100644
index 000000000..c7eca048b
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/test/throughput.hpp
@@ -0,0 +1,57 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_THROUGHPUT_HPP
+#define BOOST_BEAST_TEST_THROUGHPUT_HPP
+
+#include <chrono>
+#include <cstdint>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+class timer
+{
+    using clock_type =
+        std::chrono::system_clock;
+
+    clock_type::time_point when_;
+
+public:
+    using duration =
+        clock_type::duration;
+
+    timer()
+        : when_(clock_type::now())
+    {
+    }
+
+    duration
+    elapsed() const
+    {
+        return clock_type::now() - when_;
+    }
+};
+
+inline
+std::uint64_t
+throughput(std::chrono::duration<
+    double> const& elapsed, std::uint64_t items)
+{
+    using namespace std::chrono;
+    return static_cast<std::uint64_t>(
+        1 / (elapsed/items).count());
+}
+
+} // test
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/test/websocket.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/test/websocket.hpp
new file mode 100644
index 000000000..20a541b54
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/test/websocket.hpp
@@ -0,0 +1,250 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_WEBSOCKET_HPP
+#define BOOST_BEAST_TEST_WEBSOCKET_HPP
+
+#include <boost/beast/core/multi_buffer.hpp>
+#include <boost/beast/websocket/stream.hpp>
+#include <boost/beast/_experimental/test/stream.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/spawn.hpp>
+#include <cstdlib>
+#include <memory>
+#include <ostream>
+#include <thread>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+// DEPRECATED
+class ws_echo_server
+{
+    std::ostream& log_;
+    net::io_context ioc_;
+    net::executor_work_guard<
+        net::io_context::executor_type> work_;
+    multi_buffer buffer_;
+    test::stream ts_;
+    std::thread t_;
+    websocket::stream<test::stream&> ws_;
+    bool close_ = false;
+
+public:
+    enum class kind
+    {
+        sync,
+        async,
+        async_client
+    };
+
+    explicit
+    ws_echo_server(
+        std::ostream& log,
+        kind k = kind::sync)
+        : log_(log)
+        , work_(ioc_.get_executor())
+        , ts_(ioc_)
+        , ws_(ts_)
+    {
+        beast::websocket::permessage_deflate pmd;
+        pmd.server_enable = true;
+        pmd.server_max_window_bits = 9;
+        pmd.compLevel = 1;
+        ws_.set_option(pmd);
+
+        switch(k)
+        {
+        case kind::sync:
+            t_ = std::thread{[&]{ do_sync(); }};
+            break;
+
+        case kind::async:
+            t_ = std::thread{[&]{ ioc_.run(); }};
+            do_accept();
+            break;
+
+        case kind::async_client:
+            t_ = std::thread{[&]{ ioc_.run(); }};
+            break;
+        }
+    }
+
+    ~ws_echo_server()
+    {
+        work_.reset();
+        t_.join();
+    }
+
+    test::stream&
+    stream()
+    {
+        return ts_;
+    }
+
+    void
+    async_handshake()
+    {
+        ws_.async_handshake("localhost", "/",
+            std::bind(
+                &ws_echo_server::on_handshake,
+                this,
+                std::placeholders::_1));
+    }
+
+    void
+    async_close()
+    {
+        net::post(ioc_,
+        [&]
+        {
+            if(ws_.is_open())
+            {
+                ws_.async_close({},
+                    std::bind(
+                        &ws_echo_server::on_close,
+                        this,
+                        std::placeholders::_1));
+            }
+            else
+            {
+                close_ = true;
+            }
+        });
+    }
+
+private:
+    void
+    do_sync()
+    {
+        try
+        {
+            ws_.accept();
+            for(;;)
+            {
+                ws_.read(buffer_);
+                ws_.text(ws_.got_text());
+                ws_.write(buffer_.data());
+                buffer_.consume(buffer_.size());
+            }
+        }
+        catch(system_error const& se)
+        {
+            boost::ignore_unused(se);
+#if 0
+            if( se.code() != error::closed &&
+                se.code() != error::failed &&
+                se.code() != net::error::eof)
+                log_ << "ws_echo_server: " << se.code().message() << std::endl;
+#endif
+        }
+        catch(std::exception const& e)
+        {
+            log_ << "ws_echo_server: " << e.what() << std::endl;
+        }
+    }
+
+    void
+    do_accept()
+    {
+        ws_.async_accept(std::bind(
+            &ws_echo_server::on_accept,
+            this,
+            std::placeholders::_1));
+    }
+
+    void
+    on_handshake(error_code ec)
+    {
+        if(ec)
+            return fail(ec);
+
+        do_read();
+    }
+
+    void
+    on_accept(error_code ec)
+    {
+        if(ec)
+            return fail(ec);
+
+        if(close_)
+        {
+            return ws_.async_close({},
+                std::bind(
+                    &ws_echo_server::on_close,
+                    this,
+                    std::placeholders::_1));
+        }
+
+        do_read();
+    }
+
+    void
+    do_read()
+    {
+        ws_.async_read(buffer_,
+            std::bind(
+                &ws_echo_server::on_read,
+                this,
+                std::placeholders::_1));
+    }
+
+    void
+    on_read(error_code ec)
+    {
+        if(ec)
+            return fail(ec);
+        ws_.text(ws_.got_text());
+        ws_.async_write(buffer_.data(),
+            std::bind(
+                &ws_echo_server::on_write,
+                this,
+                std::placeholders::_1));
+    }
+
+    void
+    on_write(error_code ec)
+    {
+        if(ec)
+            return fail(ec);
+        buffer_.consume(buffer_.size());
+        do_read();
+    }
+
+    void
+    on_close(error_code ec)
+    {
+        if(ec)
+            return fail(ec);
+    }
+
+    void
+    fail(error_code ec)
+    {
+        boost::ignore_unused(ec);
+#if 0
+        if( ec != error::closed &&
+            ec != error::failed &&
+            ec != net::error::eof)
+            log_ <<
+                "echo_server_async: " <<
+                ec.message() <<
+                std::endl;
+#endif
+    }
+};
+
+} // test
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/extras/include/boost/beast/test/yield_to.hpp b/src/boost/libs/beast/test/extras/include/boost/beast/test/yield_to.hpp
new file mode 100644
index 000000000..e0064830b
--- /dev/null
+++ b/src/boost/libs/beast/test/extras/include/boost/beast/test/yield_to.hpp
@@ -0,0 +1,139 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+#ifndef BOOST_BEAST_TEST_YIELD_TO_HPP
+#define BOOST_BEAST_TEST_YIELD_TO_HPP
+
+#include <boost/asio/executor_work_guard.hpp>
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/spawn.hpp>
+#include <condition_variable>
+#include <functional>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+namespace boost {
+namespace beast {
+namespace test {
+
+/** Mix-in to support tests using asio coroutines.
+
+    Derive from this class and use yield_to to launch test
+    functions inside coroutines. This is handy for testing
+    asynchronous asio code.
+*/
+class enable_yield_to
+{
+protected:
+    net::io_context ioc_;
+
+private:
+    net::executor_work_guard<
+        net::io_context::executor_type> work_;
+    std::vector<std::thread> threads_;
+    std::mutex m_;
+    std::condition_variable cv_;
+    std::size_t running_ = 0;
+
+public:
+    /// The type of yield context passed to functions.
+    using yield_context =
+        net::yield_context;
+
+    explicit
+    enable_yield_to(std::size_t concurrency = 1)
+        : work_(ioc_.get_executor())
+    {
+        threads_.reserve(concurrency);
+        while(concurrency--)
+            threads_.emplace_back(
+                [&]{ ioc_.run(); });
+    }
+
+    ~enable_yield_to()
+    {
+        work_.reset();
+        for(auto& t : threads_)
+            t.join();
+    }
+
+    /// Return the `io_context` associated with the object
+    net::io_context&
+    get_io_service()
+    {
+        return ioc_;
+    }
+
+    /** Run one or more functions, each in a coroutine.
+
+        This call will block until all coroutines terminate.
+
+        Each functions should have this signature:
+        @code
+            void f(yield_context);
+        @endcode
+
+        @param fn... One or more functions to invoke.
+    */
+#if BOOST_BEAST_DOXYGEN
+    template<class... FN>
+    void
+    yield_to(FN&&... fn)
+#else
+    template<class F0, class... FN>
+    void
+    yield_to(F0&& f0, FN&&... fn);
+#endif
+
+private:
+    void
+    spawn()
+    {
+    }
+
+    template<class F0, class... FN>
+    void
+    spawn(F0&& f, FN&&... fn);
+};
+
+template<class F0, class... FN>
+void
+enable_yield_to::
+yield_to(F0&& f0, FN&&... fn)
+{
+    running_ = 1 + sizeof...(FN);
+    spawn(f0, fn...);
+    std::unique_lock<std::mutex> lock{m_};
+    cv_.wait(lock, [&]{ return running_ == 0; });
+}
+
+template<class F0, class... FN>
+inline
+void
+enable_yield_to::
+spawn(F0&& f, FN&&... fn)
+{
+    asio::spawn(ioc_,
+        [&](yield_context yield)
+        {
+            f(yield);
+            std::lock_guard<std::mutex> lock{m_};
+            if(--running_ == 0)
+                cv_.notify_all();
+        }
+        , boost::coroutines::attributes(2 * 1024 * 1024));
+    spawn(fn...);
+}
+
+} // test
+} // beast
+} // boost
+
+#endif
diff --git a/src/boost/libs/beast/test/lib_asio.cpp b/src/boost/libs/beast/test/lib_asio.cpp
new file mode 100644
index 000000000..e78743319
--- /dev/null
+++ b/src/boost/libs/beast/test/lib_asio.cpp
@@ -0,0 +1,12 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// This file is used to build a static library
+
+#include <boost/asio/impl/src.hpp>
diff --git a/src/boost/libs/beast/test/lib_asio_ssl.cpp b/src/boost/libs/beast/test/lib_asio_ssl.cpp
new file mode 100644
index 000000000..212003197
--- /dev/null
+++ b/src/boost/libs/beast/test/lib_asio_ssl.cpp
@@ -0,0 +1,12 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// This file is used to build a static library
+
+#include <boost/asio/ssl/impl/src.hpp>
diff --git a/src/boost/libs/beast/test/lib_beast.cpp b/src/boost/libs/beast/test/lib_beast.cpp
new file mode 100644
index 000000000..a9523a4ea
--- /dev/null
+++ b/src/boost/libs/beast/test/lib_beast.cpp
@@ -0,0 +1,12 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// This file is used to build a static library
+
+#include <boost/beast/src.hpp>
diff --git a/src/boost/libs/beast/test/lib_test.cpp b/src/boost/libs/beast/test/lib_test.cpp
new file mode 100644
index 000000000..12e6614d1
--- /dev/null
+++ b/src/boost/libs/beast/test/lib_test.cpp
@@ -0,0 +1,13 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/beast
+//
+
+// This file is used to build a static library
+
+#include <boost/beast/_experimental/unit_test/main.ipp>
+
diff --git a/src/boost/libs/beast/tools/blacklist.supp b/src/boost/libs/beast/tools/blacklist.supp
new file mode 100644
index 000000000..669f3eb64
--- /dev/null
+++ b/src/boost/libs/beast/tools/blacklist.supp
@@ -0,0 +1,30 @@
+
+# Remember that this blacklist file is GLOBAL to all sanitizers
+# Be therefore extremely careful when considering to add a sanitizer
+# filter here instead of using a runtime suppression
+#
+# Remember also that filters here quite literally completely
+# remove instrumentation altogether, so filtering here means
+# that sanitizers such as tsan will false positive on problems
+# introduced by code filtered here.
+#
+# The main use for this file is ubsan, as it's the only sanitizer
+# without a runtime suppression facility.
+#
+# Be ESPECIALLY careful when filtering out entire source files!
+# Try if at all possible to filter only functions using fun:regex
+# Remember you must use mangled symbol names with fun:regex
+
+# boost/lexical_cast.hpp:1625:43: runtime error: downcast of address 0x7fbb4fffbce8 which does not point to an object of type 'buffer_t' (aka 'parser_buf<std::basic_streambuf<char, char_traits<char> >, char>')
+# Fixed in Boost 1.63.0 https://svn.boost.org/trac/boost/ticket/12889
+#
+fun:*shl_input_streamable*
+
+## The well known ubsan failure in libstdc++ extant for years :)
+# Line 96:24: runtime error: load of value 4294967221, which is not a valid value for type 'std::_Ios_Fmtflags'
+#
+#fun:*_Ios_Fmtflags*
+
+# boost/any.hpp:259:16: runtime error: downcast of address 0x000004392e70 which does not point to an object of type 'any::holder<int>'
+#
+#fun:*any_cast*
\ No newline at end of file
diff --git a/src/boost/libs/beast/tools/build-and-test.sh b/src/boost/libs/beast/tools/build-and-test.sh
new file mode 100755
index 000000000..7d95f6f3d
--- /dev/null
+++ b/src/boost/libs/beast/tools/build-and-test.sh
@@ -0,0 +1,162 @@
+#!/usr/bin/env bash
+
+# add 'x' for command tracing
+set -eu
+
+#-------------------------------------------------------------------------------
+#
+# Utilities
+#
+
+# For builds not triggered by a pull request TRAVIS_BRANCH is the name of the
+# branch currently being built; whereas for builds triggered by a pull request
+# it is the name of the branch targeted by the pull request (in many cases this
+# will be master).
+MAIN_BRANCH="0"
+if [[ $TRAVIS_BRANCH == "master" || $TRAVIS_BRANCH == "develop" ]]; then
+    MAIN_BRANCH="1"
+fi
+
+if [[ "${BEAST_RETRY}" == "true" ]]; then
+  JOBS=1
+elif [[ "${TRAVIS}" == "true" ]]; then
+  JOBS="2"
+elif [[ $(uname -s) == "Linux" ]]; then
+  # Physical cores
+  JOBS=$(lscpu -p | grep -v '^#' | sort -u -t, -k 2,4 | wc -l)
+elif [[ $(uname) == "Darwin" ]]; then
+  # Physical cores
+  JOBS=$(sysctl -n hw.physicalcpu)
+else
+  JOBS=1
+fi
+
+# run with a debugger
+function debug_run ()
+{
+  if [[ $TRAVIS_OS_NAME == "osx" ]]; then
+    # -o runs after loading the binary
+    # -k runs after any crash
+    # We use a ghetto appromixation of --return-child-result, exiting with
+    # 1 on a crash
+    lldb \
+      --batch \
+      -o 'run' \
+      -k 'thread backtrace all' \
+      -k 'script import os; os._exit(1)' \
+      $@
+  else
+    gdb \
+      --silent \
+      --batch \
+      --return-child-result \
+      -ex="set print thread-events off" \
+      -ex=run \
+      -ex="thread apply all bt full" \
+      --args $@
+  fi
+}
+
+function valgrind_run ()
+{
+  valgrind \
+    --track-origins=yes \
+    --max-stackframe=16000000 \
+    --suppressions=$BOOST_ROOT/libs/beast/tools/valgrind.supp \
+    --error-exitcode=1 \
+    $@
+}
+
+function run_tests_with_debugger ()
+{
+  find "$1" -name "$2" -print0 | while read -d $'\0' f
+  do
+    debug_run "$f"
+  done
+}
+
+function run_tests_with_valgrind ()
+{
+  find "$1" -name "$2" -print0 | while read -d $'\0' f
+  do
+    valgrind_run "$f"
+  done
+}
+
+function run_tests ()
+{
+  find "$1" -name "$2" -print0 | while read -d $'\0' f
+  do
+    "$f"
+  done
+}
+
+#-------------------------------------------------------------------------------
+
+BIN_DIR="$BOOST_ROOT/bin.v2/libs/beast/test"
+LIB_DIR="$BOOST_ROOT/libs/beast"
+INC_DIR="$BOOST_ROOT/boost/beast"
+
+function build_bjam ()
+{
+  if [[ $VARIANT == "beast_coverage" ]] || \
+     [[ $VARIANT == "beast_valgrind" ]] || \
+     [[ $VARIANT == "beast_ubasan" ]]; then
+    b2 \
+      define=BOOST_COROUTINES_NO_DEPRECATION_WARNING=1 \
+      cxxstd=$CXXSTD \
+      libs/beast/test/beast/core//fat-tests \
+      libs/beast/test/beast/http//fat-tests \
+      libs/beast/test/beast/websocket//fat-tests \
+      libs/beast/test/beast/zlib//fat-tests \
+      toolset=$TOOLSET \
+      variant=$VARIANT \
+      link=static \
+      -j${JOBS}
+  elif [[ $VARIANT == "debug" ]]; then
+    b2 \
+      define=BOOST_COROUTINES_NO_DEPRECATION_WARNING=1 \
+      cxxstd=$CXXSTD \
+      libs/beast/test//fat-tests \
+      libs/beast/example \
+      toolset=$TOOLSET \
+      variant=$VARIANT \
+      -j${JOBS}
+  else
+    b2 \
+      define=BOOST_COROUTINES_NO_DEPRECATION_WARNING=1 \
+      cxxstd=$CXXSTD \
+      libs/beast/test//fat-tests \
+      toolset=$TOOLSET \
+      variant=$VARIANT \
+      -j${JOBS}
+  fi
+}
+
+build_bjam
+
+if [[ $VARIANT == "beast_coverage" ]]; then
+  # for lcov to work effectively, the paths and includes
+  # passed to the compiler should not contain "." or "..".
+  # (this runs in $BOOST_ROOT)
+  lcov --version
+  find "$BOOST_ROOT" -name "*.gcda" | xargs rm -f
+  rm -f "$BOOST_ROOT/*.info"
+  lcov --no-external -c -i -d "$BOOST_ROOT" -o baseline.info > /dev/null
+  run_tests "$BIN_DIR" fat-tests
+  # https://bugs.launchpad.net/ubuntu/+source/lcov/+bug/1163758
+  lcov --no-external -c -d "$BOOST_ROOT"  -o testrun-all.info > /dev/null 2>&1
+  lcov -a baseline.info -a testrun-all.info -o lcov-diff.info > /dev/null
+  lcov -e "lcov-diff.info" "$INC_DIR/*" -o lcov.info > /dev/null
+  lcov --remove "lcov.info" "$INC_DIR/_experimental/*" -o lcov.info > /dev/null
+  ~/.local/bin/codecov -X gcov -f lcov.info
+  find "$BOOST_ROOT" -name "*.gcda" | xargs rm -f
+
+elif [[ $VARIANT == "beast_valgrind" ]]; then
+  run_tests_with_valgrind "$BIN_DIR" fat-tests
+
+else
+  #run_tests_with_debugger "$BIN_DIR" fat-tests
+  run_tests "$BIN_DIR" fat-tests
+
+fi
diff --git a/src/boost/libs/beast/tools/coverage.sh b/src/boost/libs/beast/tools/coverage.sh
new file mode 100755
index 000000000..508e83d6b
--- /dev/null
+++ b/src/boost/libs/beast/tools/coverage.sh
@@ -0,0 +1,9 @@
+#! /bin/bash
+set -e
+lcov --directory bin.v2 --capture --no-external --directory $(pwd) --output-file coverage.info > /dev/null 2>&1
+lcov --extract coverage.info $(pwd)'/boost/beast/*' --output-file coverage.info > /dev/null
+lcov --remove coverage.info $(pwd)'/boost/beast/_experimental/*' --output-file coverage.info > /dev/null
+lcov --list coverage.info
+# Codecov improperly detects project root in AzP, so we need to upload from beast git repo
+cd libs/beast
+curl -s https://codecov.io/bash -o codecov && bash ./codecov -X gcov -f ../../coverage.info -t $CODECOV_TOKEN
diff --git a/src/boost/libs/beast/tools/field.txt b/src/boost/libs/beast/tools/field.txt
new file mode 100644
index 000000000..bc7926ce7
--- /dev/null
+++ b/src/boost/libs/beast/tools/field.txt
@@ -0,0 +1,352 @@
+Accept
+Accept-Additions
+Accept-Charset
+Accept-Datetime
+Accept-Encoding
+Accept-Features
+Accept-Language
+Accept-Patch
+Accept-Post
+Accept-Ranges
+Access-Control
+Access-Control-Allow-Credentials
+Access-Control-Allow-Headers
+Access-Control-Allow-Methods
+Access-Control-Allow-Origin
+Access-Control-Expose-Headers
+Access-Control-Max-Age
+Access-Control-Request-Headers
+Access-Control-Request-Method
+Age
+A-IM
+Allow
+ALPN
+Also-Control
+Alternate-Recipient
+Alternates
+Alt-Svc
+Alt-Used
+Apparently-To
+Apply-To-Redirect-Ref
+Approved
+Archive
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+Disclose-Recipients
+Disposition-Notification-Options
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+Distribution
+DKIM-Signature
+DL-Expansion-History
+Downgraded-Bcc
+Downgraded-Cc
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+Downgraded-Final-Recipient
+Downgraded-From
+Downgraded-In-Reply-To
+Downgraded-Mail-From
+Downgraded-Message-Id
+Downgraded-Original-Recipient
+Downgraded-Rcpt-To
+Downgraded-References
+Downgraded-Reply-To
+Downgraded-Resent-Bcc
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+MMHS-Other-Recipients-Indicator-CC
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+MMHS-Primary-Precedence
+MMHS-Subject-Indicator-Codes
+MT-Priority
+Negotiate
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+NNTP-Posting-Date
+NNTP-Posting-Host
+Non-Compliance
+Obsoletes
+Opt
+Optional
+Optional-WWW-Authenticate
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+Original-From
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+X-Device-Accept-Charset
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diff --git a/src/boost/libs/beast/tools/get-boost.sh b/src/boost/libs/beast/tools/get-boost.sh
new file mode 100755
index 000000000..c614a486a
--- /dev/null
+++ b/src/boost/libs/beast/tools/get-boost.sh
@@ -0,0 +1,89 @@
+#! /bin/sh
+
+set -e
+
+build_dir=$2
+
+branch="master"
+
+if [ "$1" != "master" -a "$1" != "refs/heads/master" ]; then
+    branch="develop"
+fi
+
+echo "BUILD_DIR: $build_dir"
+echo "BRANCH: $branch"
+
+git clone -b $branch --depth 1 https://github.com/boostorg/boost.git boost-root
+cd boost-root
+
+# Use a reasonably large depth to prevent intermittent update failures due to
+# commits being on a submodule's master before the superproject is updated.
+git submodule update --init --depth 20 --jobs 4 \
+    libs/array \
+    libs/headers \
+    tools/build \
+    tools/boost_install \
+    tools/boostdep \
+    libs/align \
+    libs/asio \
+    libs/assert \
+    libs/config \
+    libs/core \
+    libs/endian \
+    libs/filesystem \
+    libs/intrusive \
+    libs/locale \
+    libs/optional \
+    libs/smart_ptr \
+    libs/static_assert \
+    libs/system \
+    libs/throw_exception \
+    libs/type_traits \
+    libs/utility \
+    libs/winapi \
+    libs/algorithm \
+    libs/array \
+    libs/atomic \
+    libs/bind \
+    libs/chrono \
+    libs/concept_check \
+    libs/container \
+    libs/container_hash \
+    libs/context \
+    libs/conversion \
+    libs/coroutine \
+    libs/date_time \
+    libs/detail \
+    libs/exception \
+    libs/function \
+    libs/function_types \
+    libs/functional \
+    libs/fusion \
+    libs/integer \
+    libs/io \
+    libs/iterator \
+    libs/lambda \
+    libs/lexical_cast \
+    libs/logic \
+    libs/math \
+    libs/move \
+    libs/mp11 \
+    libs/mpl \
+    libs/numeric/conversion \
+    libs/pool \
+    libs/predef \
+    libs/preprocessor \
+    libs/random \
+    libs/range \
+    libs/ratio \
+    libs/rational \
+    libs/thread \
+    libs/tuple \
+    libs/type_index \
+    libs/typeof \
+    libs/unordered
+
+echo Submodule update complete
+
+rm -rf libs/beast
+cp -r $build_dir libs/beast
diff --git a/src/boost/libs/beast/tools/install-dependencies.sh b/src/boost/libs/beast/tools/install-dependencies.sh
new file mode 100755
index 000000000..e865187ba
--- /dev/null
+++ b/src/boost/libs/beast/tools/install-dependencies.sh
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+# Exit if anything fails.
+set -eux
+
+HERE=$PWD
+
+# Override gcc version to $GCC_VER.
+# Put an appropriate symlink at the front of the path.
+mkdir -pv $HOME/bin
+for g in gcc g++ gcov gcc-ar gcc-nm gcc-ranlib
+do
+  test -x $( type -p ${g}-$GCC_VER )
+  ln -sv $(type -p ${g}-$GCC_VER) $HOME/bin/${g}
+done
+
+if [[ -n ${CLANG_VER:-} ]]; then
+    # There are cases where the directory exists, but the exe is not available.
+    # Use this workaround for now.
+    if [[ ! -x llvm-${LLVM_VERSION}/bin/llvm-config ]] && [[ -d llvm-${LLVM_VERSION} ]]; then
+        rm -fr llvm-${LLVM_VERSION}
+    fi
+    if [[ ! -d llvm-${LLVM_VERSION} ]]; then
+        mkdir llvm-${LLVM_VERSION}
+        LLVM_URL="http://llvm.org/releases/${LLVM_VERSION}/clang+llvm-${LLVM_VERSION}-x86_64-linux-gnu-ubuntu-14.04.tar.xz"
+        wget -O - ${LLVM_URL} | tar -Jxvf - --strip 1 -C llvm-${LLVM_VERSION}
+    fi
+    llvm-${LLVM_VERSION}/bin/llvm-config --version;
+    export LLVM_CONFIG="llvm-${LLVM_VERSION}/bin/llvm-config";
+fi
+
+# NOTE, changed from PWD -> HOME
+export PATH=$HOME/bin:$PATH
+
+# What versions are we ACTUALLY running?
+if [ -x $HOME/bin/g++ ]; then
+    $HOME/bin/g++ -v
+fi
+if [ -x $HOME/bin/clang ]; then
+    $HOME/bin/clang -v
+fi
+
+# Avoid `spurious errors` caused by ~/.npm permission issues
+# Does it already exist? Who owns? What permissions?
+ls -lah ~/.npm || mkdir ~/.npm
+
+# Make sure we own it
+chown -Rc $USER ~/.npm
diff --git a/src/boost/libs/beast/tools/local-travis.sh b/src/boost/libs/beast/tools/local-travis.sh
new file mode 100755
index 000000000..8dd79da58
--- /dev/null
+++ b/src/boost/libs/beast/tools/local-travis.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+export VARIANT=ubasan
+export TOOLSET=clang
+export TRAVIS=0
+export BOOST_ROOT="`pwd`"
+
+"$1"
diff --git a/src/boost/libs/beast/tools/make_field.sh b/src/boost/libs/beast/tools/make_field.sh
new file mode 100755
index 000000000..8e54c1372
--- /dev/null
+++ b/src/boost/libs/beast/tools/make_field.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+export LC_COLLATE=C
+
+echo "// string constants"
+echo '            "<unknown-field>",'
+cat $1 | sort -f | uniq | sed 's/^/            \"/; s/$/\",/'
+echo
+
+echo "enum class field : unsigned short"
+echo "{"
+echo "    unknown = 0,"
+echo
+#cat $1 | uniq | sort -f | sed 's/./\L&/g; s/^/\t/; s/$/,/'
+cat $1 | sort -f | uniq | sed 's/\(.*\)/    \L\1,/; s/-/_/g'
+echo "};"
+echo
+
+echo "// pairs"
+#cat $1 | uniq | sort -f | sed 's/\(.*\)/\tmatch\(field::\L\1, \"\E\1\"\);/; s/-/_/'
+cat $1 | sort -f | uniq | perl -nE 'chomp; $a=lc($_); $a=~s/-/_/g; say "        match(field::$a, \"$_\");";' | tr -d "\015"
+
diff --git a/src/boost/libs/beast/tools/retry.sh b/src/boost/libs/beast/tools/retry.sh
new file mode 100755
index 000000000..13b30e8e1
--- /dev/null
+++ b/src/boost/libs/beast/tools/retry.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+for i in {1..3}
+do
+    $1 "${@:2:99}" && exit 0;
+    export BEAST_RETRY="true"
+done
+
+exit 1
diff --git a/src/boost/libs/beast/tools/user-config.jam b/src/boost/libs/beast/tools/user-config.jam
new file mode 100644
index 000000000..215e5adb7
--- /dev/null
+++ b/src/boost/libs/beast/tools/user-config.jam
@@ -0,0 +1,13 @@
+# Used on CI
+
+import os ;
+
+local OPENSSL_ROOT = [ os.environ OPENSSL_ROOT ] ;
+
+project
+  : requirements
+    <include>$(OPENSSL_ROOT)/include
+    <variant>debug:<library-path>$(OPENSSL_ROOT)/lib
+    <target-os>windows<variant>debug:<library-path>$(OPENSSL_ROOT)/debug/lib
+    <variant>release:<library-path>$(OPENSSL_ROOT)/lib
+  ;
diff --git a/src/boost/libs/beast/tools/valgrind.supp b/src/boost/libs/beast/tools/valgrind.supp
new file mode 100644
index 000000000..aa699b741
--- /dev/null
+++ b/src/boost/libs/beast/tools/valgrind.supp
@@ -0,0 +1,31 @@
+{
+   zlib_fill_window_no_init
+   Memcheck:Cond
+   fun:fill_window
+}
+
+{
+   zlib_deflate_fast
+   Memcheck:Cond
+   fun:deflate_fast
+}
+
+{
+   Ignore OpenSSL malloc
+   Memcheck:Leak
+   fun:malloc
+   fun:CRYPTO_malloc
+   obj:*libcrypto*
+}
+{
+   Ignore OpenSSL realloc
+   Memcheck:Leak
+   fun:realloc
+   fun:CRYPTO_realloc
+   obj:*libcrypto*
+}
+{
+    OpenSSL Non-Purify
+    Memcheck:Cond
+    obj:*libcrypto*
+}