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Diffstat (limited to 'src/boost/libs/serialization/test/test_cyclic_ptrs.cpp')
| -rw-r--r-- | src/boost/libs/serialization/test/test_cyclic_ptrs.cpp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/src/boost/libs/serialization/test/test_cyclic_ptrs.cpp b/src/boost/libs/serialization/test/test_cyclic_ptrs.cpp new file mode 100644 index 00000000..365949df --- /dev/null +++ b/src/boost/libs/serialization/test/test_cyclic_ptrs.cpp @@ -0,0 +1,204 @@ +/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 +// test_cyclic_ptrs.cpp + +// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . +// 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) + +// should pass compilation and execution + +#include <cstddef> // NULL +#include <fstream> + +#include <cstdio> // remove +#include <boost/config.hpp> +#if defined(BOOST_NO_STDC_NAMESPACE) +namespace std{ + using ::remove; +} +#endif + +#include "test_tools.hpp" +#include <boost/core/no_exceptions_support.hpp> + +#include <boost/serialization/nvp.hpp> +#include <boost/serialization/version.hpp> +#include <boost/serialization/base_object.hpp> + +#include "A.hpp" +#include "A.ipp" + +/////////////////////////////////////////////////////// +// class with a member which refers to itself +class J : public A +{ +private: + friend class boost::serialization::access; + template<class Archive> + void serialize(Archive &ar, const unsigned int /* file_version */){ + ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(A); + ar & BOOST_SERIALIZATION_NVP(j); + } +public: + bool operator==(const J &rhs) const; + J *j; + J(J *_j) : j(_j) {} + J() : j(NULL){} +}; + +BOOST_CLASS_VERSION(J, 6) + +bool J::operator==(const J &rhs) const +{ + return static_cast<const A &>(*this) == static_cast<const A &>(rhs); +} + +/////////////////////////////////////////////////////// +// class with members that refer to each other +// this is an example of a class that, as written, cannot +// be serialized with this system. The problem is that the +// serialization of the first member - j1 , provokes serialization +// of those objects which it points to either directly or indirectly. +// When those objects are subsequently serialized, it is discovered +// that have already been serialized through pointers. This is +// detected by the system and an exception - pointer_conflict - +// is thrown. Permiting this to go undetected would result in the +// creation of multiple equal objects rather than the original +// structure. +class K +{ + J j1; + J j2; + J j3; + friend class boost::serialization::access; + template<class Archive> + void serialize( + Archive &ar, + const unsigned int /* file_version */ + ){ + ar & BOOST_SERIALIZATION_NVP(j1); + ar & BOOST_SERIALIZATION_NVP(j2); + ar & BOOST_SERIALIZATION_NVP(j3); + } +public: + bool operator==(const K &rhs) const; + K(); +}; + +K::K() +: j1(&j2), j2(&j3), j3(&j1) +{ +} + +bool K::operator==(const K &rhs) const +{ + return + j1.j == & j2 + && j2.j == & j3 + && j3.j == & j1 + && j1 == rhs.j1 + && j2 == rhs.j2 + && j3 == rhs.j3 + ; +} + +int test1(){ + const char * testfile = boost::archive::tmpnam(NULL); + BOOST_REQUIRE(NULL != testfile); + + J j1, j2; + { + test_ostream os(testfile, TEST_STREAM_FLAGS); + test_oarchive oa(os, TEST_ARCHIVE_FLAGS); + oa << BOOST_SERIALIZATION_NVP(j1); + } + { + // try to read the archive + test_istream is(testfile, TEST_STREAM_FLAGS); + test_iarchive ia(is, TEST_ARCHIVE_FLAGS); + ia >> BOOST_SERIALIZATION_NVP(j2); + } + BOOST_CHECK(j1 == j2); + std::remove(testfile); + return EXIT_SUCCESS; +} + +int test2(){ + const char * testfile = boost::archive::tmpnam(NULL); + BOOST_REQUIRE(NULL != testfile); + + J *j1 = new J; + j1->j = j1; + J *j2 = reinterpret_cast<J *>(0xBAADF00D); + { + test_ostream os(testfile, TEST_STREAM_FLAGS); + test_oarchive oa(os, TEST_ARCHIVE_FLAGS); + oa << BOOST_SERIALIZATION_NVP(j1); + } + { + // try to read the archive + test_istream is(testfile, TEST_STREAM_FLAGS); + test_iarchive ia(is, TEST_ARCHIVE_FLAGS); + ia >> BOOST_SERIALIZATION_NVP(j2); + } + BOOST_CHECK(*j1 == *j2); + delete j1; + BOOST_CHECK(j2 == j2->j); + std::remove(testfile); + return EXIT_SUCCESS; +} + +int test3(){ + const char * testfile = boost::archive::tmpnam(NULL); + BOOST_REQUIRE(NULL != testfile); + + K k; + boost::archive::archive_exception exception( + boost::archive::archive_exception::no_exception + ); + { + test_ostream os(testfile, TEST_STREAM_FLAGS); + test_oarchive oa(os, TEST_ARCHIVE_FLAGS); + BOOST_TRY { + oa << BOOST_SERIALIZATION_NVP(k); + } + BOOST_CATCH (boost::archive::archive_exception const& ae){ + exception = ae; + } + BOOST_CATCH_END + BOOST_CHECK( + exception.code == boost::archive::archive_exception::pointer_conflict + ); + } + // if exception wasn't invoked + if(exception.code == boost::archive::archive_exception::no_exception){ + // try to read the archive + test_istream is(testfile, TEST_STREAM_FLAGS); + test_iarchive ia(is, TEST_ARCHIVE_FLAGS); + exception = boost::archive::archive_exception( + boost::archive::archive_exception::no_exception + ); + BOOST_TRY { + ia >> BOOST_SERIALIZATION_NVP(k); + } + BOOST_CATCH (boost::archive::archive_exception const& ae){ + exception = ae; + } + BOOST_CATCH_END + BOOST_CHECK( + exception.code == boost::archive::archive_exception::pointer_conflict + ); + } + std::remove(testfile); + return EXIT_SUCCESS; +} + +int test_main( int /* argc */, char* /* argv */[] ){ + test1(); + test2(); + test3(); + return EXIT_SUCCESS; +} + +// EOF |