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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// test_class_info_save.cpp: test implementation level trait
// (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)
// test implementation level "object_class_info"
// should pass compilation and execution
#include <fstream>
#include <string>
#include <boost/static_assert.hpp>
#include <boost/archive/tmpdir.hpp>
#include <boost/preprocessor/stringize.hpp>
#include "test_tools.hpp"
#include <boost/serialization/level.hpp>
#include <boost/serialization/version.hpp>
#include <boost/serialization/tracking.hpp>
#include <boost/serialization/nvp.hpp>
// first case : serialize WITHOUT class information
class A
{
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive & /*ar*/, const unsigned int file_version){
// class that don't save class info always have a version number of 0
BOOST_CHECK(file_version == 0);
BOOST_STATIC_ASSERT(0 == ::boost::serialization::version<A>::value);
++count;
}
public:
unsigned int count;
A() : count(0) {}
};
BOOST_CLASS_IMPLEMENTATION(A, ::boost::serialization::object_serializable)
BOOST_CLASS_TRACKING(A, ::boost::serialization::track_never)
// second case : serialize WITH class information
// note: GCC compile fails if this is after the class declaration
class B;
BOOST_CLASS_VERSION(B, 2)
class B
{
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive & /*ar*/, const unsigned int file_version){
// verify at execution that correct version number is passed on save
BOOST_CHECK(
static_cast<const int>(file_version)
== ::boost::serialization::version<B>::value
);
++count;
}
public:
unsigned int count;
B() : count(0) {}
};
BOOST_CLASS_IMPLEMENTATION(B, ::boost::serialization::object_class_info)
BOOST_CLASS_TRACKING(B, boost::serialization::track_always)
#include <iostream>
void out(const char *testfile, const A & a, const B & b)
{
test_ostream os(testfile, TEST_STREAM_FLAGS);
test_oarchive oa(os, TEST_ARCHIVE_FLAGS);
// write object twice to check tracking
oa << BOOST_SERIALIZATION_NVP(a);
oa << BOOST_SERIALIZATION_NVP(a);
BOOST_CHECK(a.count == 2); // no tracking => redundant saves
std::cout << "a.count=" << a.count << '\n' ;
oa << BOOST_SERIALIZATION_NVP(b);
oa << BOOST_SERIALIZATION_NVP(b);
BOOST_CHECK(b.count == 1); // tracking => no redundant saves
std::cout << "b.count=" << b.count << '\n' ;
}
int
test_main( int /* argc */, char* /* argv */[] )
{
A a;
B b;
std::string filename;
filename += boost::archive::tmpdir();
filename += '/';
filename += BOOST_PP_STRINGIZE(testfile_);
filename += BOOST_PP_STRINGIZE(BOOST_ARCHIVE_TEST);
out(filename.c_str(), a, b);
return EXIT_SUCCESS;
}
// EOF
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