Adding upstream version 14.2.21.upstream/14.2.21upstream

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

35 files changed, 2580 insertions, 0 deletions

diff --git a/src/boost/libs/filesystem/example/Jamfile.v2 b/src/boost/libs/filesystem/example/Jamfile.v2
new file mode 100644
index 00000000..79722835
--- /dev/null
+++ b/src/boost/libs/filesystem/example/Jamfile.v2
@@ -0,0 +1,25 @@
+# Boost Filesystem Library Example Jamfile
+ 
+# (C) Copyright Vladimir Prus 2003
+
+# Distributed under the Boost Software License, Version 1.0.
+# See www.boost.org/LICENSE_1_0.txt
+
+# Library home page: http://www.boost.org/libs/filesystem
+
+project
+    : requirements
+      <library>/boost/filesystem//boost_filesystem
+      <link>static
+    ;
+
+exe tut0 : tut0.cpp ;
+exe tut1 : tut1.cpp ;
+exe tut2 : tut2.cpp ;
+exe tut3 : tut3.cpp ;
+exe tut4 : tut4.cpp ;
+exe tut5 : tut5.cpp ;
+exe path_info : path_info.cpp ;
+exe file_status : file_status.cpp ;
+exe file_size : file_size.cpp ;
+exe directory_symlink_parent_resolution : directory_symlink_parent_resolution.cpp ;
\ No newline at end of file
diff --git a/src/boost/libs/filesystem/example/directory_symlink_parent_resolution.cpp b/src/boost/libs/filesystem/example/directory_symlink_parent_resolution.cpp
new file mode 100644
index 00000000..a204b6e9
--- /dev/null
+++ b/src/boost/libs/filesystem/example/directory_symlink_parent_resolution.cpp
@@ -0,0 +1,41 @@
+//  directory_symlink_parent_resolution.cpp  -------------------------------------------//
+
+//  Copyright Beman Dawes 2015
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <boost/filesystem.hpp>
+#include <boost/filesystem/string_file.hpp>
+#include <boost/detail/lightweight_main.hpp>
+#include <iostream>
+#include <string>
+using std::cout;
+using std::endl;
+using namespace boost::filesystem;
+
+int cpp_main(int argc, char* argv[])
+{
+# ifdef BOOST_WINDOWS_API
+  cout  << "BOOST_WINDOWS_API" << endl;
+# else
+  cout  << "BOOST_POSIX_API" << endl;
+# endif
+
+  path test_dir(current_path() / "dspr_demo");
+
+  remove_all(test_dir);
+  create_directories(test_dir / "a/c/d");
+  current_path(test_dir / "a");
+  create_directory_symlink("c/d", "b");
+  save_string_file("name.txt", "Windows");
+  save_string_file("c/name.txt", "POSIX");
+  current_path(test_dir);
+  std::string s;
+  load_string_file("a/b/../name.txt", s);
+  cout << s << endl;
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/error_demo.cpp b/src/boost/libs/filesystem/example/error_demo.cpp
new file mode 100644
index 00000000..ce16b3bc
--- /dev/null
+++ b/src/boost/libs/filesystem/example/error_demo.cpp
@@ -0,0 +1,185 @@
+//  error_demo.cpp  --------------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+//--------------------------------------------------------------------------------------//
+//                                                                                      //
+//  The purpose of this program is to demonstrate how error reporting works.            //
+//                                                                                      //
+//--------------------------------------------------------------------------------------//
+
+#include <boost/filesystem.hpp>
+#include <boost/system/system_error.hpp>
+#include <iostream>
+
+using std::cout;
+using boost::filesystem::path;
+using boost::filesystem::filesystem_error;
+using boost::system::error_code;
+using boost::system::system_error;
+namespace fs = boost::filesystem;
+
+namespace
+{
+  void report_system_error(const system_error& ex)
+  {
+    cout << " threw system_error:\n"
+         << "    ex.code().value() is " << ex.code().value() << '\n'
+         << "    ex.code().category().name() is " << ex.code().category().name() << '\n'
+         << "    ex.what() is " << ex.what() << '\n'
+         ;
+  }
+
+  void report_filesystem_error(const system_error& ex)
+  {
+    cout << "  threw filesystem_error exception:\n"
+         << "    ex.code().value() is " << ex.code().value() << '\n'
+         << "    ex.code().category().name() is " << ex.code().category().name() << '\n'
+         << "    ex.what() is " << ex.what() << '\n'
+         ;
+  }
+
+  void report_status(fs::file_status s)
+  {
+    cout << "  file_status::type() is ";
+    switch (s.type())
+    {
+    case fs::status_error:
+      cout << "status_error\n"; break;
+    case fs::file_not_found:
+      cout << "file_not_found\n"; break;
+    case fs::regular_file:
+      cout << "regular_file\n"; break;
+    case fs::directory_file:
+      cout << "directory_file\n"; break;
+    case fs::symlink_file:
+      cout << "symlink_file\n"; break;
+    case fs::block_file:
+      cout << "block_file\n"; break;
+    case fs::character_file:
+      cout << "character_file\n"; break;
+    case fs::fifo_file:
+      cout << "fifo_file\n"; break;
+    case fs::socket_file:
+      cout << "socket_file\n"; break;
+    case fs::type_unknown:
+      cout << "type_unknown\n"; break;
+    default:
+      cout << "not a valid enumeration constant\n";
+    }
+  }
+
+  void report_error_code(const error_code& ec)
+  {
+    cout << "  ec:\n"
+         << "    value() is " << ec.value() << '\n'
+         << "    category().name() is " << ec.category().name() << '\n'
+         << "    message() is " <<  ec.message() << '\n'
+         ;
+  }
+
+  bool threw_exception;
+
+}
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    cout << "Usage: error_demo path\n";
+    return 1;
+  }
+
+  error_code ec;
+
+  ////  construct path - no error_code
+
+  //try { path p1(argv[1]); }
+  //catch (const system_error& ex)
+  //{
+  //  cout << "construct path without error_code";
+  //  report_system_error(ex);
+  //}
+
+  ////  construct path - with error_code
+
+  path p (argv[1]);
+
+  fs::file_status s;
+  bool            b (false);
+  fs::directory_iterator di;
+
+  //  get status - no error_code
+
+  cout << "\nstatus(\"" << p.string() << "\");\n";
+  threw_exception = false;
+
+  try { s = fs::status(p); }
+  catch (const system_error& ex)
+  {
+    report_filesystem_error(ex);
+    threw_exception = true;
+  }
+  if (!threw_exception)
+    cout << "  Did not throw exception\n";
+  report_status(s);
+
+  //  get status - with error_code
+
+  cout << "\nstatus(\"" << p.string() << "\", ec);\n";
+  s = fs::status(p, ec);
+  report_status(s);
+  report_error_code(ec);
+
+  //  query existence - no error_code
+
+  cout << "\nexists(\"" << p.string() << "\");\n";
+  threw_exception = false;
+
+  try { b = fs::exists(p); }
+  catch (const system_error& ex)
+  {
+    report_filesystem_error(ex);
+    threw_exception = true;
+  }
+  if (!threw_exception)
+  {
+    cout << "  Did not throw exception\n"
+         << "  Returns: " << (b ? "true" : "false") << '\n';
+  }
+
+  //  query existence - with error_code
+
+  //  directory_iterator - no error_code
+
+  cout << "\ndirectory_iterator(\"" << p.string() << "\");\n";
+  threw_exception = false;
+
+  try { di = fs::directory_iterator(p); }
+  catch (const system_error& ex)
+  {
+    report_filesystem_error(ex);
+    threw_exception = true;
+  }
+  if (!threw_exception)
+  {
+    cout << "  Did not throw exception\n"
+      << (di == fs::directory_iterator() ? "  Equal" : "  Not equal")
+      << " to the end iterator\n";
+  }
+
+  //  directory_iterator - with error_code
+
+  cout << "\ndirectory_iterator(\"" << p.string() << "\", ec);\n";
+  di = fs::directory_iterator(p, ec);
+  cout << (di == fs::directory_iterator() ? "  Equal" : "  Not equal")
+       << " to the end iterator\n";
+  report_error_code(ec);
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/file_size.cpp b/src/boost/libs/filesystem/example/file_size.cpp
new file mode 100644
index 00000000..3fbfa4ea
--- /dev/null
+++ b/src/boost/libs/filesystem/example/file_size.cpp
@@ -0,0 +1,44 @@
+//  file_size program  -------------------------------------------------------//
+
+//  Copyright Beman Dawes, 2004
+
+//  Use, modification, and distribution is 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)
+
+//  See http://www.boost.org/libs/filesystem for documentation.
+
+#include <boost/filesystem/operations.hpp>
+#include <iostream>
+
+namespace fs = boost::filesystem;
+
+int main( int argc, char* argv[] )
+{
+
+  if ( argc != 2 )
+  {
+    std::cout << "Usage: file_size path\n";
+    return 1;
+  }
+
+  std::cout << "sizeof(intmax_t) is " << sizeof(boost::intmax_t) << '\n';
+
+  fs::path p( argv[1] );
+
+  if ( !fs::exists( p ) )
+  {
+    std::cout << "not found: " << argv[1] << std::endl;
+    return 1;
+  }
+
+  if ( !fs::is_regular( p ) )
+  {
+    std::cout << "not a regular file: " << argv[1] << std::endl;
+    return 1;
+  }
+ 
+  std::cout << "size of " << argv[1] << " is " << fs::file_size( p )
+    << std::endl;
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/file_status.cpp b/src/boost/libs/filesystem/example/file_status.cpp
new file mode 100644
index 00000000..5d3774fd
--- /dev/null
+++ b/src/boost/libs/filesystem/example/file_status.cpp
@@ -0,0 +1,117 @@
+//  status.cpp  ------------------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2011
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <boost/config.hpp>
+#include <boost/version.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/detail/lightweight_main.hpp>
+
+using std::cout; using std::endl;
+using namespace boost::filesystem;
+
+namespace
+{
+  path p;
+  
+  void print_boost_macros()
+  {
+    std::cout << "Boost "
+              << BOOST_VERSION / 100000 << '.'
+              << BOOST_VERSION / 100 % 1000 << '.'
+              << BOOST_VERSION % 100 << ", "
+#           ifndef _WIN64
+              << BOOST_COMPILER << ", "
+#           else
+              << BOOST_COMPILER << " with _WIN64 defined, "
+#           endif
+              << BOOST_STDLIB << ", "
+              << BOOST_PLATFORM
+              << std::endl;
+  }
+
+  const char* file_type_tab[] = 
+    { "status_error", "file_not_found", "regular_file", "directory_file",
+      "symlink_file", "block_file", "character_file", "fifo_file", "socket_file",
+      "type_unknown"
+    };
+
+  const char* file_type_c_str(enum file_type t)
+  {
+    return file_type_tab[t];
+  }
+
+  void show_status(file_status s, boost::system::error_code ec)
+  {
+    boost::system::error_condition econd;
+
+    if (ec)
+    {
+      econd = ec.default_error_condition();
+      cout << "sets ec to indicate an error:\n"
+           << "   ec.value() is " << ec.value() << '\n'
+           << "   ec.message() is \"" << ec.message() << "\"\n"
+           << "   ec.default_error_condition().value() is " << econd.value() << '\n'
+           << "   ec.default_error_condition().message() is \"" << econd.message() << "\"\n";
+    }
+    else
+      cout << "clears ec.\n";
+
+    cout << "s.type() is " << s.type()
+         << ", which is defined as \"" << file_type_c_str(s.type()) << "\"\n";
+
+    cout << "exists(s) is " << (exists(s) ? "true" : "false") << "\n";
+    cout << "status_known(s) is " << (status_known(s) ? "true" : "false") << "\n";
+    cout << "is_regular_file(s) is " << (is_regular_file(s) ? "true" : "false") << "\n";
+    cout << "is_directory(s) is " << (is_directory(s) ? "true" : "false") << "\n";
+    cout << "is_other(s) is " << (is_other(s) ? "true" : "false") << "\n";
+    cout << "is_symlink(s) is " << (is_symlink(s) ? "true" : "false") << "\n";
+  }
+
+  void try_exists()
+  {
+    cout << "\nexists(" << p << ") ";
+    try
+    {
+      bool result = exists(p);
+      cout << "is " << (result ? "true" : "false") << "\n";
+    }
+    catch (const filesystem_error& ex)
+    {
+      cout << "throws a filesystem_error exception: " << ex.what() << "\n";
+    }
+  }
+
+}
+
+int cpp_main(int argc, char* argv[])
+{
+  print_boost_macros();
+
+  if (argc < 2)
+  {
+    std::cout << "Usage: file_status <path>\n";
+    p = argv[0];
+  }
+  else
+    p = argv[1];
+
+  boost::system::error_code ec;
+  file_status s = status(p, ec);
+  cout << "\nfile_status s = status(" << p << ", ec) ";
+  show_status(s, ec);
+
+  s = symlink_status(p, ec);
+  cout << "\nfile_status s = symlink_status(" << p << ", ec) ";
+  show_status(s, ec);
+
+  try_exists();
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/mbcopy.cpp b/src/boost/libs/filesystem/example/mbcopy.cpp
new file mode 100644
index 00000000..2b1f6038
--- /dev/null
+++ b/src/boost/libs/filesystem/example/mbcopy.cpp
@@ -0,0 +1,90 @@
+//  Boost.Filesystem mbcopy.cpp  ---------------------------------------------//
+
+//  Copyright Beman Dawes 2005
+
+//  Use, modification, and distribution is 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)
+
+//  Copy the files in a directory, using mbpath to represent the new file names
+//  See http://../doc/path.htm#mbpath for more information
+
+//  See deprecated_test for tests of deprecated features
+#define BOOST_FILESYSTEM_NO_DEPRECATED
+
+#include <boost/filesystem/config.hpp>
+# ifdef BOOST_FILESYSTEM_NARROW_ONLY
+#   error This compiler or standard library does not support wide-character strings or paths
+# endif
+
+#include "mbpath.hpp"
+#include <iostream>
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/fstream.hpp>
+#include "../src/utf8_codecvt_facet.hpp"
+
+namespace fs = boost::filesystem;
+
+namespace
+{
+  // we can't use boost::filesystem::copy_file() because the argument types
+  // differ, so provide a not-very-smart replacement.
+
+  void copy_file( const fs::wpath & from, const user::mbpath & to )
+  {
+    fs::ifstream from_file( from, std::ios_base::in | std::ios_base::binary );
+    if ( !from_file ) { std::cout << "input open failed\n"; return; }
+
+    fs::ofstream to_file( to, std::ios_base::out | std::ios_base::binary );
+    if ( !to_file ) { std::cout << "output open failed\n"; return; }
+
+    char c;
+    while ( from_file.get(c) )
+    {
+      to_file.put(c);
+      if ( to_file.fail() ) { std::cout << "write error\n"; return; }
+    }
+
+    if ( !from_file.eof() ) { std::cout << "read error\n"; }
+  }
+}
+
+int main( int argc, char * argv[] )
+{
+  if ( argc != 2 )
+  {
+    std::cout << "Copy files in the current directory to a target directory\n"
+              << "Usage: mbcopy <target-dir>\n";
+    return 1;
+  }
+
+  // For encoding, use Boost UTF-8 codecvt
+  std::locale global_loc = std::locale();
+  std::locale loc( global_loc, new fs::detail::utf8_codecvt_facet );
+  user::mbpath_traits::imbue( loc );
+
+  std::string target_string( argv[1] );
+  user::mbpath target_dir( user::mbpath_traits::to_internal( target_string ) );
+
+  if ( !fs::is_directory( target_dir ) )
+  {
+    std::cout << "Error: " << argv[1] << " is not a directory\n";
+    return 1;
+  }
+
+  for ( fs::wdirectory_iterator it( L"." );
+    it != fs::wdirectory_iterator(); ++it )
+  {
+    if ( fs::is_regular_file(it->status()) )
+    {
+      copy_file( *it, target_dir / it->path().filename() );
+    }
+  }
+
+  return 0;
+}
+
+
+
+
+
diff --git a/src/boost/libs/filesystem/example/mbpath.cpp b/src/boost/libs/filesystem/example/mbpath.cpp
new file mode 100644
index 00000000..43590010
--- /dev/null
+++ b/src/boost/libs/filesystem/example/mbpath.cpp
@@ -0,0 +1,80 @@
+//  Boost.Filesystem mbpath.cpp  ---------------------------------------------//
+
+//  (c) Copyright Beman Dawes 2005
+
+//  Use, modification, and distribution is 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)
+
+//  See Boost.Filesystem home page at http://www.boost.org/libs/filesystem
+
+#include <boost/filesystem/config.hpp>
+# ifdef BOOST_FILESYSTEM_NARROW_ONLY
+#   error This compiler or standard library does not support wide-character strings or paths
+# endif
+
+#include "mbpath.hpp"
+#include <boost/system/system_error.hpp>
+#include <boost/scoped_array.hpp>
+
+namespace fs = boost::filesystem;
+
+namespace
+{
+  // ISO C calls this "the locale-specific native environment":
+  std::locale loc("");
+
+  const std::codecvt<wchar_t, char, std::mbstate_t> *
+    cvt( &std::use_facet<std::codecvt<wchar_t, char, std::mbstate_t> >
+           ( loc ) );
+}
+
+namespace user
+{
+  mbpath_traits::external_string_type
+  mbpath_traits::to_external( const mbpath & ph,
+    const internal_string_type & src )
+  {
+    std::size_t work_size( cvt->max_length() * (src.size()+1) );
+    boost::scoped_array<char> work( new char[ work_size ] );
+    std::mbstate_t state;
+    const internal_string_type::value_type * from_next;
+    external_string_type::value_type * to_next;
+    if ( cvt->out( 
+      state, src.c_str(), src.c_str()+src.size(), from_next, work.get(),
+      work.get()+work_size, to_next ) != std::codecvt_base::ok )
+      boost::throw_exception<fs::basic_filesystem_error<mbpath> >(
+        fs::basic_filesystem_error<mbpath>(
+          "user::mbpath::to_external conversion error",
+          ph, boost::system::error_code( EINVAL, boost::system::errno_ecat ) ) );
+    *to_next = '\0';
+    return external_string_type( work.get() );
+  }
+
+  mbpath_traits::internal_string_type 
+  mbpath_traits::to_internal( const external_string_type & src )
+  {
+      std::size_t work_size( src.size()+1 );
+      boost::scoped_array<wchar_t> work( new wchar_t[ work_size ] );
+      std::mbstate_t state;
+      const external_string_type::value_type * from_next;
+      internal_string_type::value_type * to_next;
+      if ( cvt->in( 
+        state, src.c_str(), src.c_str()+src.size(), from_next, work.get(),
+        work.get()+work_size, to_next ) != std::codecvt_base::ok )
+        boost::throw_exception<fs::basic_filesystem_error<mbpath> >(
+          fs::basic_filesystem_error<mbpath>(
+            "user::mbpath::to_internal conversion error",
+            boost::system::error_code( EINVAL, boost::system::errno_ecat ) ) );
+      *to_next = L'\0';
+      return internal_string_type( work.get() );
+  }
+
+  void mbpath_traits::imbue( const std::locale & new_loc )
+  {
+    loc = new_loc;
+    cvt = &std::use_facet
+      <std::codecvt<wchar_t, char, std::mbstate_t> >( loc );
+  }
+
+} // namespace user
diff --git a/src/boost/libs/filesystem/example/mbpath.hpp b/src/boost/libs/filesystem/example/mbpath.hpp
new file mode 100644
index 00000000..f752b3fd
--- /dev/null
+++ b/src/boost/libs/filesystem/example/mbpath.hpp
@@ -0,0 +1,44 @@
+//  Boost.Filesystem mbpath.hpp  ---------------------------------------------//
+
+//  Copyright Beman Dawes 2005
+
+//  Use, modification, and distribution is 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)
+
+//  Encodes wide character paths as MBCS
+//  See http://../doc/path.htm#mbpath for more information
+
+#include <boost/filesystem/path.hpp>
+#include <cwchar>     // for std::mbstate_t
+#include <string>
+#include <locale>
+
+namespace user
+{
+  struct mbpath_traits;
+  
+  typedef boost::filesystem::basic_path<std::wstring, mbpath_traits> mbpath;
+
+  struct mbpath_traits
+  {
+    typedef std::wstring internal_string_type;
+    typedef std::string external_string_type;
+
+    static external_string_type to_external( const mbpath & ph,
+      const internal_string_type & src );
+
+    static internal_string_type to_internal( const external_string_type & src );
+
+    static void imbue( const std::locale & loc );
+  };
+} // namespace user
+
+namespace boost
+{
+  namespace filesystem
+  {
+    template<> struct is_basic_path<user::mbpath>
+      { static const bool value = true; };
+  }
+}
diff --git a/src/boost/libs/filesystem/example/msvc/common.props b/src/boost/libs/filesystem/example/msvc/common.props
new file mode 100644
index 00000000..527c3c8a
--- /dev/null
+++ b/src/boost/libs/filesystem/example/msvc/common.props
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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index 00000000..e41ee55a
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index 00000000..64fe4ea9
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diff --git a/src/boost/libs/filesystem/example/path_info.cpp b/src/boost/libs/filesystem/example/path_info.cpp
new file mode 100644
index 00000000..42e4bdfb
--- /dev/null
+++ b/src/boost/libs/filesystem/example/path_info.cpp
@@ -0,0 +1,82 @@
+//  path_info.cpp  ---------------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <boost/filesystem.hpp>
+using namespace std;
+using namespace boost::filesystem;
+
+const char * say_what(bool b) { return b ? "true" : "false"; }
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    cout << "Usage: path_info path-element [path-element...]\n"
+            "Composes a path via operator/= from one or more path-element arguments\n"
+            "Example: path_info foo/bar baz\n"
+#            ifdef BOOST_POSIX_API
+            "         would report info about the composed path foo/bar/baz\n";
+#            else  // BOOST_WINDOWS_API
+            "         would report info about the composed path foo/bar\\baz\n";
+#            endif
+    return 1;
+  }
+
+  path p;
+  for (; argc > 1; --argc, ++argv)
+    p /= argv[1];  // compose path p from the command line arguments
+
+  cout  <<  "\ncomposed path:\n";
+  cout  <<  "  operator<<()---------: " << p << "\n";
+  cout  <<  "  make_preferred()-----: " << p.make_preferred() << "\n";
+
+  cout << "\nelements:\n";
+  for (auto element : p)
+    cout << "  " << element << '\n';
+
+  cout  <<  "\nobservers, native format:" << endl;
+# ifdef BOOST_POSIX_API
+  cout  <<  "  native()-------------: " << p.native() << endl;
+  cout  <<  "  c_str()--------------: " << p.c_str() << endl;
+# else  // BOOST_WINDOWS_API
+  wcout << L"  native()-------------: " << p.native() << endl;
+  wcout << L"  c_str()--------------: " << p.c_str() << endl;
+# endif
+  cout  <<  "  string()-------------: " << p.string() << endl;
+  wcout << L"  wstring()------------: " << p.wstring() << endl;
+
+  cout  <<  "\nobservers, generic format:\n";
+  cout  <<  "  generic_string()-----: " << p.generic_string() << endl;
+  wcout << L"  generic_wstring()----: " << p.generic_wstring() << endl;
+
+  cout  <<  "\ndecomposition:\n";
+  cout  <<  "  root_name()----------: " << p.root_name() << '\n';
+  cout  <<  "  root_directory()-----: " << p.root_directory() << '\n';
+  cout  <<  "  root_path()----------: " << p.root_path() << '\n';
+  cout  <<  "  relative_path()------: " << p.relative_path() << '\n';
+  cout  <<  "  parent_path()--------: " << p.parent_path() << '\n';
+  cout  <<  "  filename()-----------: " << p.filename() << '\n';
+  cout  <<  "  stem()---------------: " << p.stem() << '\n';
+  cout  <<  "  extension()----------: " << p.extension() << '\n';
+
+  cout  <<  "\nquery:\n";
+  cout  <<  "  empty()--------------: " << say_what(p.empty()) << '\n';
+  cout  <<  "  is_absolute()--------: " << say_what(p.is_absolute()) << '\n';
+  cout  <<  "  has_root_name()------: " << say_what(p.has_root_name()) << '\n';
+  cout  <<  "  has_root_directory()-: " << say_what(p.has_root_directory()) << '\n';
+  cout  <<  "  has_root_path()------: " << say_what(p.has_root_path()) << '\n';
+  cout  <<  "  has_relative_path()--: " << say_what(p.has_relative_path()) << '\n';
+  cout  <<  "  has_parent_path()----: " << say_what(p.has_parent_path()) << '\n';
+  cout  <<  "  has_filename()-------: " << say_what(p.has_filename()) << '\n';
+  cout  <<  "  has_stem()-----------: " << say_what(p.has_stem()) << '\n';
+  cout  <<  "  has_extension()------: " << say_what(p.has_extension()) << '\n';
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/simple_ls.cpp b/src/boost/libs/filesystem/example/simple_ls.cpp
new file mode 100644
index 00000000..c914a51e
--- /dev/null
+++ b/src/boost/libs/filesystem/example/simple_ls.cpp
@@ -0,0 +1,92 @@
+//  simple_ls program  -------------------------------------------------------//
+
+//  Copyright Jeff Garland and Beman Dawes, 2002
+
+//  Use, modification, and distribution is 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)
+
+//  See http://www.boost.org/libs/filesystem for documentation.
+
+#define BOOST_FILESYSTEM_VERSION 3
+
+//  As an example program, we don't want to use any deprecated features
+#ifndef BOOST_FILESYSTEM_NO_DEPRECATED 
+#  define BOOST_FILESYSTEM_NO_DEPRECATED
+#endif
+#ifndef BOOST_SYSTEM_NO_DEPRECATED 
+#  define BOOST_SYSTEM_NO_DEPRECATED
+#endif
+
+#include <boost/filesystem/operations.hpp>
+#include <boost/filesystem/directory.hpp>
+#include <boost/filesystem/path.hpp>
+#include <iostream>
+
+namespace fs = boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  fs::path p(fs::current_path());
+
+  if (argc > 1)
+    p = fs::system_complete(argv[1]);
+  else
+    std::cout << "\nusage:   simple_ls [path]" << std::endl;
+
+  unsigned long file_count = 0;
+  unsigned long dir_count = 0;
+  unsigned long other_count = 0;
+  unsigned long err_count = 0;
+
+  if (!fs::exists(p))
+  {
+    std::cout << "\nNot found: " << p << std::endl;
+    return 1;
+  }
+
+  if (fs::is_directory(p))
+  {
+    std::cout << "\nIn directory: " << p << "\n\n";
+    fs::directory_iterator end_iter;
+    for (fs::directory_iterator dir_itr(p);
+          dir_itr != end_iter;
+          ++dir_itr)
+    {
+      try
+      {
+        if (fs::is_directory(dir_itr->status()))
+        {
+          ++dir_count;
+          std::cout << dir_itr->path().filename() << " [directory]\n";
+        }
+        else if (fs::is_regular_file(dir_itr->status()))
+        {
+          ++file_count;
+          std::cout << dir_itr->path().filename() << "\n";
+        }
+        else
+        {
+          ++other_count;
+          std::cout << dir_itr->path().filename() << " [other]\n";
+        }
+
+      }
+      catch (const std::exception & ex)
+      {
+        ++err_count;
+        std::cout << dir_itr->path().filename() << " " << ex.what() << std::endl;
+      }
+    }
+    std::cout << "\n" << file_count << " files\n"
+              << dir_count << " directories\n"
+              << other_count << " others\n"
+              << err_count << " errors\n";
+  }
+  else // must be a file
+  {
+    std::cout << "\nFound: " << p << "\n";
+  }
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/stems.cpp b/src/boost/libs/filesystem/example/stems.cpp
new file mode 100644
index 00000000..3699fa81
--- /dev/null
+++ b/src/boost/libs/filesystem/example/stems.cpp
@@ -0,0 +1,31 @@
+//  filesystem example stems.cpp  ------------------------------------------------------//
+
+//  Copyright Beman Dawes 2011
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <boost/filesystem.hpp>
+#include <iostream>
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    std::cout << "Usage: stems <path>\n";
+    return 1;
+  }
+
+  boost::filesystem::path p(argv[1]), name(p.filename());
+
+  for(;;)
+  {
+    std::cout << "filename " << name  << " has stem " << name.stem()
+      << " and extension " << name.extension() << "\n";
+    if (name.stem().empty() || name.extension().empty())
+      return 0;
+    name = name.stem();
+  }
+}
diff --git a/src/boost/libs/filesystem/example/tchar.cpp b/src/boost/libs/filesystem/example/tchar.cpp
new file mode 100644
index 00000000..5f33d69e
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tchar.cpp
@@ -0,0 +1,39 @@
+//  Example use of Microsoft TCHAR  ----------------------------------------------------//
+
+//  Copyright Beman Dawes 2008
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/filesystem/path.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <string>
+#include <cassert>
+#include <windows.h>
+#include <winnt.h>
+
+namespace fs = boost::filesystem;
+
+typedef std::basic_string<TCHAR> tstring;
+
+void func( const fs::path & p )
+{
+  assert( fs::exists( p ) );
+}
+
+int main()
+{
+  // get a path that is known to exist
+  fs::path cp = fs::current_path(); 
+
+  // demo: get tstring from the path
+  tstring cp_as_tstring = cp.string<tstring>();
+
+  // demo: pass tstring to filesystem function taking path
+  assert( fs::exists( cp_as_tstring ) );
+
+  // demo: pass tstring to user function taking path
+  func( cp_as_tstring );
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/test/Jamfile.v2 b/src/boost/libs/filesystem/example/test/Jamfile.v2
new file mode 100644
index 00000000..22a16325
--- /dev/null
+++ b/src/boost/libs/filesystem/example/test/Jamfile.v2
@@ -0,0 +1,29 @@
+# Boost Filesystem Library Tutorial Jamfile
+ 
+# (C) Copyright Beman Dawes 2010
+# (C) Copyright Vladimir Prus 2003
+
+# Distributed under the Boost Software License, Version 1.0.
+# See www.boost.org/LICENSE_1_0.txt
+
+# Library home page: http://www.boost.org/libs/filesystem
+
+project
+    : requirements
+      <library>/boost/filesystem//boost_filesystem
+    ;
+
+exe tut1 : tut1.cpp ;
+exe tut2 : tut2.cpp ;
+exe tut3 : tut3.cpp ;
+exe tut4 : tut4.cpp ;
+exe tut5 : tut5.cpp ;
+exe path_info : path_info.cpp ;
+
+install tut1-copy : tut1 : <location>. ;
+install tut2-copy : tut2 : <location>. ;
+install tut3-copy : tut3 : <location>. ;
+install tut4-copy : tut4 : <location>. ;
+install tut5-copy : tut5 : <location>. ;
+install path_info-copy : path_info : <location>. ;
+  
diff --git a/src/boost/libs/filesystem/example/test/build.bat b/src/boost/libs/filesystem/example/test/build.bat
new file mode 100644
index 00000000..1921ca1c
--- /dev/null
+++ b/src/boost/libs/filesystem/example/test/build.bat
@@ -0,0 +1,7 @@
+@echo off
+rem Copyright Beman Dawes, 2010
+rem Distributed under the Boost Software License, Version 1.0.
+rem See www.boost.org/LICENSE_1_0.txt
+echo Compiling example programs...
+b2 %* >b2.log
+find "error" <b2.log
diff --git a/src/boost/libs/filesystem/example/test/build.sh b/src/boost/libs/filesystem/example/test/build.sh
new file mode 100755
index 00000000..19b1a788
--- /dev/null
+++ b/src/boost/libs/filesystem/example/test/build.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+# Copyright Beman Dawes, 2010
+# Distributed under the Boost Software License, Version 1.0.
+# See www.boost.org/LICENSE_1_0.txt
+echo Compiling example programs...
+b2 $* >b2.log
+grep "error" <b2.log
diff --git a/src/boost/libs/filesystem/example/test/setup.bat b/src/boost/libs/filesystem/example/test/setup.bat
new file mode 100644
index 00000000..59822a51
--- /dev/null
+++ b/src/boost/libs/filesystem/example/test/setup.bat
@@ -0,0 +1,13 @@
+@echo off
+rem Copyright Beman Dawes, 2010
+rem Distributed under the Boost Software License, Version 1.0.
+rem See www.boost.org/LICENSE_1_0.txt
+echo Copying example programs...
+copy /y ..\tut1.cpp >nul
+copy /y ..\tut2.cpp >nul
+copy /y ..\tut3.cpp >nul
+copy /y ..\tut4.cpp >nul
+copy /y ..\tut5.cpp >nul
+copy /y ..\path_info.cpp >nul
+del *.exe 2>nul
+del *.pdb 2>nul
diff --git a/src/boost/libs/filesystem/example/test/setup.sh b/src/boost/libs/filesystem/example/test/setup.sh
new file mode 100755
index 00000000..cb1ba684
--- /dev/null
+++ b/src/boost/libs/filesystem/example/test/setup.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+# Copyright Beman Dawes, 2010
+# Distributed under the Boost Software License, Version 1.0.
+# See www.boost.org/LICENSE_1_0.txt
+echo Copying example programs...
+cp ../tut1.cpp .
+cp ../tut2.cpp .
+cp ../tut3.cpp .
+cp ../tut4.cpp .
+cp ../tut5.cpp .
+cp ../path_info.cpp .
+rm tut1 2>~/junk
+rm tut2 2>~/junk
+rm tut3 2>~/junk
+rm tut4 2>~/junk
+rm tut5 2>~/junk
+rm path_info 2>~/junk
+
diff --git a/src/boost/libs/filesystem/example/tut0.cpp b/src/boost/libs/filesystem/example/tut0.cpp
new file mode 100644
index 00000000..3e294c02
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut0.cpp
@@ -0,0 +1,23 @@
+//  filesystem tut0.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <boost/filesystem.hpp>
+namespace fs = boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    std::cout << "Usage: tut0 path\n";
+    return 1;
+  }
+  std::cout << argv[1] << '\n';
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/tut1.cpp b/src/boost/libs/filesystem/example/tut1.cpp
new file mode 100644
index 00000000..3ac85b90
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut1.cpp
@@ -0,0 +1,23 @@
+//  filesystem tut1.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <boost/filesystem.hpp>
+using namespace boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    std::cout << "Usage: tut1 path\n";
+    return 1;
+  }
+  std::cout << argv[1] << " " << file_size(argv[1]) << '\n';
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/tut2.cpp b/src/boost/libs/filesystem/example/tut2.cpp
new file mode 100644
index 00000000..147dc3d8
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut2.cpp
@@ -0,0 +1,40 @@
+//  filesystem tut2.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <boost/filesystem.hpp>
+using namespace std;
+using namespace boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    cout << "Usage: tut2 path\n";
+    return 1;
+  }
+
+  path p(argv[1]);  // avoid repeated path construction below
+
+  if (exists(p))    // does path p actually exist?
+  {
+    if (is_regular_file(p))        // is path p a regular file?
+      cout << p << " size is " << file_size(p) << '\n';
+
+    else if (is_directory(p))      // is path p a directory?
+      cout << p << " is a directory\n";
+
+    else
+      cout << p << " exists, but is not a regular file or directory\n";
+  }
+  else
+    cout << p << " does not exist\n";
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/tut3.cpp b/src/boost/libs/filesystem/example/tut3.cpp
new file mode 100644
index 00000000..f930e101
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut3.cpp
@@ -0,0 +1,52 @@
+//  filesystem tut3.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <boost/filesystem.hpp>
+using std::cout;
+using namespace boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    cout << "Usage: tut3 path\n";
+    return 1;
+  }
+
+  path p (argv[1]);
+
+  try
+  {
+    if (exists(p))
+    {
+      if (is_regular_file(p))
+        cout << p << " size is " << file_size(p) << '\n';
+
+      else if (is_directory(p))
+      {
+        cout << p << " is a directory containing:\n";
+
+        for (const directory_entry& x : directory_iterator(p))
+          cout << "    " << x.path() << '\n'; 
+      }
+      else
+        cout << p << " exists, but is not a regular file or directory\n";
+    }
+    else
+      cout << p << " does not exist\n";
+  }
+
+  catch (const filesystem_error& ex)
+  {
+    cout << ex.what() << '\n';
+  }
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/tut4.cpp b/src/boost/libs/filesystem/example/tut4.cpp
new file mode 100644
index 00000000..513a5e62
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut4.cpp
@@ -0,0 +1,61 @@
+//  filesystem tut4.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2009
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <boost/filesystem.hpp>
+using std::cout;
+using namespace boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    cout << "Usage: tut4 path\n";
+    return 1;
+  }
+
+  path p (argv[1]);
+
+  try
+  {
+    if (exists(p))
+    {
+      if (is_regular_file(p))
+        cout << p << " size is " << file_size(p) << '\n';
+
+      else if (is_directory(p))
+      {
+        cout << p << " is a directory containing:\n";
+
+        std::vector<path> v;
+
+        for (auto&& x : directory_iterator(p))
+          v.push_back(x.path()); 
+
+        std::sort(v.begin(), v.end());  
+
+        for (auto&& x : v)
+          cout << "    " << x.filename() << '\n';
+      }
+      else
+        cout << p << " exists, but is not a regular file or directory\n";
+    }
+    else
+      cout << p << " does not exist\n";
+  }
+
+  catch (const filesystem_error& ex)
+  {
+    cout << ex.what() << '\n';
+  }
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/tut5.cpp b/src/boost/libs/filesystem/example/tut5.cpp
new file mode 100644
index 00000000..d665b0db
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut5.cpp
@@ -0,0 +1,52 @@
+//  filesystem tut5.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2010
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <boost/filesystem/fstream.hpp>
+#include <string>
+#include <list>
+namespace fs = boost::filesystem;
+
+int main()
+{
+  // \u263A is "Unicode WHITE SMILING FACE = have a nice day!"
+  std::string narrow_string ("smile2");
+  std::wstring wide_string (L"smile2\u263A");
+  std::list<char> narrow_list;
+  narrow_list.push_back('s');
+  narrow_list.push_back('m');
+  narrow_list.push_back('i');
+  narrow_list.push_back('l');
+  narrow_list.push_back('e');
+  narrow_list.push_back('3');
+  std::list<wchar_t> wide_list;
+  wide_list.push_back(L's');
+  wide_list.push_back(L'm');
+  wide_list.push_back(L'i');
+  wide_list.push_back(L'l');
+  wide_list.push_back(L'e');
+  wide_list.push_back(L'3');
+  wide_list.push_back(L'\u263A');
+
+  { fs::ofstream f("smile"); }
+  { fs::ofstream f(L"smile\u263A"); }
+  { fs::ofstream f(narrow_string); }
+  { fs::ofstream f(wide_string); }
+  { fs::ofstream f(narrow_list); }
+  { fs::ofstream f(wide_list); }
+  narrow_list.pop_back();
+  narrow_list.push_back('4');
+  wide_list.pop_back();
+  wide_list.pop_back();
+  wide_list.push_back(L'4');
+  wide_list.push_back(L'\u263A');
+  { fs::ofstream f(fs::path(narrow_list.begin(), narrow_list.end())); }
+  { fs::ofstream f(fs::path(wide_list.begin(), wide_list.end())); }
+
+  return 0;
+}
diff --git a/src/boost/libs/filesystem/example/tut6a.cpp b/src/boost/libs/filesystem/example/tut6a.cpp
new file mode 100644
index 00000000..f579a427
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut6a.cpp
@@ -0,0 +1,48 @@
+//  filesystem tut6a.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2010
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <exception>
+#include <boost/filesystem.hpp>
+using namespace boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    std::cout << "Usage: tut6a path\n";
+    return 1;
+  }
+
+  try
+  {
+    for (recursive_directory_iterator it (argv[1]);
+         it != recursive_directory_iterator();
+         ++it)
+    {
+      if (it.level() > 1)
+        it.pop();
+      else
+      {
+        for (int i = 0; i <= it.level(); ++i)
+          std::cout << "  ";
+
+        std::cout << it->path() << '\n';
+      }
+    }
+  }
+  
+  catch (const std::exception& ex)
+  {
+    std::cout << "************* exception *****************\n";
+    std::cout << ex.what() << '\n';
+  }
+
+  return 0;
+}  
diff --git a/src/boost/libs/filesystem/example/tut6b.cpp b/src/boost/libs/filesystem/example/tut6b.cpp
new file mode 100644
index 00000000..90f54efc
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut6b.cpp
@@ -0,0 +1,50 @@
+//  filesystem tut6b.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2010
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <exception>
+#include <boost/filesystem.hpp>
+using namespace boost::filesystem;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    std::cout << "Usage: tut6b path\n";
+    return 1;
+  }
+
+  try
+  {
+    for (recursive_directory_iterator it (argv[1]);
+         it != recursive_directory_iterator();
+        )
+    {
+      for (int i = 0; i <= it.level(); ++i)
+        std::cout << "  ";
+
+      std::cout << it->path() << '\n';
+
+      try { ++it; }
+      catch (const filesystem_error& ex)
+      {
+        std::cout << "************* filesystem_error *****************\n";
+        std::cout << ex.what() << '\n';
+      }
+    }
+  }
+  
+  catch (const std::exception& ex)
+  {
+    std::cout << "************* exception *****************\n";
+    std::cout << ex.what() << '\n';
+  }
+
+  return 0;
+}  
diff --git a/src/boost/libs/filesystem/example/tut6c.cpp b/src/boost/libs/filesystem/example/tut6c.cpp
new file mode 100644
index 00000000..2b73f774
--- /dev/null
+++ b/src/boost/libs/filesystem/example/tut6c.cpp
@@ -0,0 +1,40 @@
+//  filesystem tut6c.cpp  --------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2010
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  Library home page: http://www.boost.org/libs/filesystem
+
+#include <iostream>
+#include <exception>
+#include <boost/filesystem.hpp>
+#include <boost/system/error_code.hpp>
+
+using namespace boost::filesystem;
+using namespace boost::system;
+
+int main(int argc, char* argv[])
+{
+  if (argc < 2)
+  {
+    std::cout << "Usage: tut6c path\n";
+    return 1;
+  }
+
+  error_code ec;
+  for (recursive_directory_iterator it (argv[1], ec);
+        it != recursive_directory_iterator();
+      )
+  {
+    for (int i = 0; i <= it.level(); ++i)
+      std::cout << "  ";
+
+    std::cout << it->path() << '\n';
+
+    it.increment(ec);
+  }
+
+  return 0;
+}