diff options
Diffstat (limited to '')
-rw-r--r-- | src/boost/libs/serialization/test/test_derived.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/boost/libs/serialization/test/test_derived.cpp b/src/boost/libs/serialization/test/test_derived.cpp new file mode 100644 index 000000000..fb378e210 --- /dev/null +++ b/src/boost/libs/serialization/test/test_derived.cpp @@ -0,0 +1,148 @@ +/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 +// test_derived.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 <boost/archive/archive_exception.hpp> +#include "test_tools.hpp" + +#include <boost/serialization/base_object.hpp> +#include <boost/serialization/type_info_implementation.hpp> + +class base +{ + friend class boost::serialization::access; + template<class Archive> + void serialize(Archive & /* ar */, const unsigned int /* file_version */){ + } +public: + virtual ~base(){}; +}; + +class derived1 : public base +{ + friend class boost::serialization::access; + template<class Archive> + void serialize(Archive &ar, const unsigned int /* file_version */){ + ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(base); + } +}; + +class derived2 : public base +{ + friend class boost::serialization::access; + template<class Archive> + void serialize(Archive &ar, const unsigned int /* file_version */){ + ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(base); + } +}; + +// save non-polymorphic classes through a base class pointer +void save_derived(const char *testfile) +{ + test_ostream os(testfile, TEST_STREAM_FLAGS); + test_oarchive oa(os, TEST_ARCHIVE_FLAGS); + + // registration not necessary when serializing the most derived pointer + derived1 *d1 = new derived1; + derived2 *d2 = new derived2; + oa << BOOST_SERIALIZATION_NVP(d1) << BOOST_SERIALIZATION_NVP(d2); + + // upcasting non-polymorphic pointers may not lead to the expected + // result. In the current type id system + base *b1 = d1; + base *b2 = d2; + + // Warning, the current type id system does not yield true + // type id for non-polymorphic types + const boost::serialization::extended_type_info & this_type + = boost::serialization::type_info_implementation<base>::type + ::get_const_instance(); + // retrieve the true type of the object pointed to + const boost::serialization::extended_type_info & true_type + = * boost::serialization::type_info_implementation<base>::type + ::get_const_instance().get_derived_extended_type_info(*b1); + + BOOST_WARN_MESSAGE( + !(this_type == true_type), + "current type id system does not support non-polymorphic types" + ); + + oa << BOOST_SERIALIZATION_NVP(b1); + oa << BOOST_SERIALIZATION_NVP(b2); + + delete d1; + delete d2; +} + +// save non-polymorphic classes through a base class pointer +void load_derived(const char *testfile) +{ + test_istream is(testfile, TEST_STREAM_FLAGS); + test_iarchive ia(is, TEST_ARCHIVE_FLAGS); + + // registration not necessary when serializing the most derived pointer + derived1 *d1 = NULL; + derived2 *d2 = NULL; + ia >> BOOST_SERIALIZATION_NVP(d1) >> BOOST_SERIALIZATION_NVP(d2); + + // upcasting non-polymorphic pointers may not lead to the expected + // result. In the current type id system + base *b1 = NULL; + base *b2 = NULL; + + // note: this will produce incorrect results for non-polymorphic classes + ia >> BOOST_SERIALIZATION_NVP(b1); + ia >> BOOST_SERIALIZATION_NVP(b2); + + // Warning, the current type id system does not yield true + // type id for non-polymorphic types + const boost::serialization::extended_type_info & this_type + = boost::serialization::type_info_implementation<base>::type + ::get_const_instance(); + // retrieve the true type of the object pointed to + const boost::serialization::extended_type_info & true_type + = * boost::serialization::type_info_implementation<base>::type + ::get_const_instance().get_derived_extended_type_info(*b1); + + BOOST_WARN_MESSAGE( + ! (this_type == true_type), + "current type id system does fails for non-polymorphic types" + ); + + BOOST_CHECK(b1 == static_cast<base *>(d1)); + BOOST_CHECK(b2 == static_cast<base *>(d2)); + + delete d1; + delete d2; +} + +int +test_main( int /* argc */, char* /* argv */[] ) +{ + const char * testfile = boost::archive::tmpnam(NULL); + BOOST_REQUIRE(NULL != testfile); + + save_derived(testfile); + load_derived(testfile); + std::remove(testfile); + return EXIT_SUCCESS; +} + +// EOF |