161 lines
4.8 KiB
C++
161 lines
4.8 KiB
C++
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
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// test_polymorphic.cpp
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// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// should pass compilation and execution
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#include <cstddef> // NULL
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#include <cstdio> // remove
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#include <fstream>
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#include <boost/config.hpp>
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#if defined(BOOST_NO_STDC_NAMESPACE)
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namespace std{
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using ::remove;
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}
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#endif
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// the following is to ensure that when one of the libraries changes
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// BJAM rebuilds and relinks the test.
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/*
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#include "polymorphic_text_archive.hpp"
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#include "polymorphic_text_warchive.hpp"
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#include "polymorphic_binary_archive.hpp"
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#include "polymorphic_xml_archive.hpp"
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#include "polymorphic_xml_warchive.hpp"
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*/
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#include <string>
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#include <vector>
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#include "test_tools.hpp"
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#include <boost/lexical_cast.hpp>
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#include <boost/serialization/split_free.hpp>
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#include <boost/serialization/vector.hpp>
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#include <boost/serialization/nvp.hpp>
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// this test uses a special string (my_string) whose contents are shared
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// and hence saved in the archive only once. We need a helper in order
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// to convert my_string into a serializable type
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class my_string:public std::string
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{
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typedef std::string super;
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public:
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my_string(){}
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my_string(const super & str): super(str){}
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my_string & operator=(const super& rhs) {
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super::operator=(rhs);
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return *this;
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}
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};
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struct my_string_helper
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{
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typedef std::vector<my_string> table;
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table m_t;
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};
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BOOST_SERIALIZATION_SPLIT_FREE(my_string)
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namespace boost {
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namespace serialization {
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template<class Archive>
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void save(Archive & ar, const my_string & str, const unsigned int /* version */)
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{
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void (* const idx)(Archive &, const my_string &, const unsigned int) = & save;
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void * const id = reinterpret_cast<void * const>(idx);
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my_string_helper & msh = ar.template get_helper<my_string_helper>(id);
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my_string_helper::table t = msh.m_t;
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my_string_helper::table::iterator it = std::find(t.begin(), t.end(), str);
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if(it == t.end()){
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my_string_helper::table::size_type s = t.size();
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ar << make_nvp("index", s);
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t.push_back(str);
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ar << make_nvp("string", static_cast<const std::string &>(str));
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}
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else{
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my_string_helper::table::size_type s = it - t.begin();
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ar << make_nvp("index", s);
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}
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}
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template<class Archive>
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void load(Archive & ar, my_string & str, const unsigned int /* version */)
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{
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void (* const idx)(Archive &, my_string &, const unsigned int) = & load;
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void * const id = reinterpret_cast<void * const>(idx);
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my_string_helper & msh = ar.template get_helper<my_string_helper>(id);
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my_string_helper::table t = msh.m_t;
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my_string_helper::table::size_type s;
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ar >> make_nvp("index", s);
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t.reserve(s);
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if(s >= t.size()){
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std::string tmp;
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ar >> make_nvp("string", tmp);
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str = tmp;
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t.push_back(str);
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}
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else{
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str = t[s];
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}
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}
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} // namespace serialization
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} // namespace boost
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#include <boost/archive/polymorphic_oarchive.hpp>
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#include <boost/archive/polymorphic_iarchive.hpp>
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int test_main(int /* argc */, char * /* argv */ [])
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{
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const char * testfile = boost::archive::tmpnam(NULL);
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BOOST_REQUIRE(NULL != testfile);
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std::vector<my_string> v1;
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for(int i=0; i<1000; ++i){
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v1.push_back(my_string(boost::lexical_cast<std::string>(i % 100)));
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}
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// test using using polymorphic implementation.
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{
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test_ostream os(testfile, TEST_STREAM_FLAGS);
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test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
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oa_implementation << boost::serialization::make_nvp("vector", v1);
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}
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{
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std::vector<my_string> v2;
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test_istream is(testfile, TEST_STREAM_FLAGS);
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test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS);
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ia_implementation >> boost::serialization::make_nvp("vector", v2);
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BOOST_CHECK(v1 == v2);
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}
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std::remove(testfile);
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// test using using polymorphic interface.
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{
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test_ostream os(testfile, TEST_STREAM_FLAGS);
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test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
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boost::archive::polymorphic_oarchive & oa_interface = oa_implementation;
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oa_interface << boost::serialization::make_nvp("vector", v1);
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}
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{
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std::vector<my_string> v2;
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test_istream is(testfile, TEST_STREAM_FLAGS);
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test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS);
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boost::archive::polymorphic_iarchive & ia_interface = ia_implementation;
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ia_interface >> boost::serialization::make_nvp("vector", v2);
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BOOST_CHECK(v1 == v2);
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}
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std::remove(testfile);
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std::remove(testfile);
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return EXIT_SUCCESS;
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}
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