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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// test_polymorphic.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 <cstdio> // remove
#include <fstream>
#include <boost/config.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::remove;
}
#endif
// the following is to ensure that when one of the libraries changes
// BJAM rebuilds and relinks the test.
/*
#include "polymorphic_text_archive.hpp"
#include "polymorphic_text_warchive.hpp"
#include "polymorphic_binary_archive.hpp"
#include "polymorphic_xml_archive.hpp"
#include "polymorphic_xml_warchive.hpp"
*/
#include <string>
#include <vector>
#include "test_tools.hpp"
#include <boost/lexical_cast.hpp>
#include <boost/serialization/split_free.hpp>
#include <boost/serialization/vector.hpp>
#include <boost/serialization/nvp.hpp>
// this test uses a special string (my_string) whose contents are shared
// and hence saved in the archive only once. We need a helper in order
// to convert my_string into a serializable type
class my_string:public std::string
{
typedef std::string super;
public:
my_string(){}
my_string(const super & str): super(str){}
my_string & operator=(const super& rhs) {
super::operator=(rhs);
return *this;
}
};
struct my_string_helper
{
typedef std::vector<my_string> table;
table m_t;
};
BOOST_SERIALIZATION_SPLIT_FREE(my_string)
namespace boost {
namespace serialization {
template<class Archive>
void save(Archive & ar, const my_string & str, const unsigned int /* version */)
{
void (* const idx)(Archive &, const my_string &, const unsigned int) = & save;
void * const id = reinterpret_cast<void * const>(idx);
my_string_helper & msh = ar.template get_helper<my_string_helper>(id);
my_string_helper::table t = msh.m_t;
my_string_helper::table::iterator it = std::find(t.begin(), t.end(), str);
if(it == t.end()){
my_string_helper::table::size_type s = t.size();
ar << make_nvp("index", s);
t.push_back(str);
ar << make_nvp("string", static_cast<const std::string &>(str));
}
else{
my_string_helper::table::size_type s = it - t.begin();
ar << make_nvp("index", s);
}
}
template<class Archive>
void load(Archive & ar, my_string & str, const unsigned int /* version */)
{
void (* const idx)(Archive &, my_string &, const unsigned int) = & load;
void * const id = reinterpret_cast<void * const>(idx);
my_string_helper & msh = ar.template get_helper<my_string_helper>(id);
my_string_helper::table t = msh.m_t;
my_string_helper::table::size_type s;
ar >> make_nvp("index", s);
t.reserve(s);
if(s >= t.size()){
std::string tmp;
ar >> make_nvp("string", tmp);
str = tmp;
t.push_back(str);
}
else{
str = t[s];
}
}
} // namespace serialization
} // namespace boost
#include <boost/archive/polymorphic_oarchive.hpp>
#include <boost/archive/polymorphic_iarchive.hpp>
int test_main(int /* argc */, char * /* argv */ [])
{
const char * testfile = boost::archive::tmpnam(NULL);
BOOST_REQUIRE(NULL != testfile);
std::vector<my_string> v1;
for(int i=0; i<1000; ++i){
v1.push_back(my_string(boost::lexical_cast<std::string>(i % 100)));
}
// test using using polymorphic implementation.
{
test_ostream os(testfile, TEST_STREAM_FLAGS);
test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
oa_implementation << boost::serialization::make_nvp("vector", v1);
}
{
std::vector<my_string> v2;
test_istream is(testfile, TEST_STREAM_FLAGS);
test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS);
ia_implementation >> boost::serialization::make_nvp("vector", v2);
BOOST_CHECK(v1 == v2);
}
std::remove(testfile);
// test using using polymorphic interface.
{
test_ostream os(testfile, TEST_STREAM_FLAGS);
test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
boost::archive::polymorphic_oarchive & oa_interface = oa_implementation;
oa_interface << boost::serialization::make_nvp("vector", v1);
}
{
std::vector<my_string> v2;
test_istream is(testfile, TEST_STREAM_FLAGS);
test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS);
boost::archive::polymorphic_iarchive & ia_interface = ia_implementation;
ia_interface >> boost::serialization::make_nvp("vector", v2);
BOOST_CHECK(v1 == v2);
}
std::remove(testfile);
std::remove(testfile);
return EXIT_SUCCESS;
}
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