123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148 |
- /////////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
|