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boost中serialization库对unordered_map支持

很遗憾,serialization库对boost的unordered_map不支持,只能自己实现了,添加如下头文件到工程中吧

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/*******************************************************************************
# Author : Neo Fung
# Email : neosfung@gmail.com
# Last modified: 2011-11-18 18:47
# Filename: unordered_map_serialization.h
# Description :
******************************************************************************/
#ifndef BOOST_SERIALIZATION_UNORDEREDMAP_HPP
#define BOOST_SERIALIZATION_UNORDEREDMAP_HPP

// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif

#include <boost/unordered_map.hpp>

#include <boost/config.hpp>

#include <boost/serialization/utility.hpp>
#include <boost/serialization/collections_save_imp.hpp>
#include <boost/serialization/collections_load_imp.hpp>
#include <boost/serialization/split_free.hpp>

namespace boost {
namespace serialization {

template<class Archive, class Type, class Key, class Hash, class Compare, class Allocator >
inline void save(
Archive & ar,
const boost::unordered_map<Key, Type, Hash, Compare, Allocator> &t,
const unsigned int /* file_version */
){
boost::serialization::stl::save_collection<
Archive,
boost::unordered_map<Key, Type, Hash, Compare, Allocator>
>(ar, t);
}

template<class Archive, class Type, class Key, class Hash, class Compare, class Allocator >
inline void load(
Archive & ar,
boost::unordered_map<Key, Type, Hash, Compare, Allocator> &t,
const unsigned int /* file_version */
){
boost::serialization::stl::load_collection<
Archive,
boost::unordered_map<Key, Type, Hash, Compare, Allocator>,
boost::serialization::stl::archive_input_map<
Archive, boost::unordered_map<Key, Type, Hash, Compare, Allocator> >,
boost::serialization::stl::no_reserve_imp<boost::unordered_map<
Key, Type, Hash, Compare, Allocator
>
>
>(ar, t);
}

// split non-intrusive serialization function member into separate
// non intrusive save/load member functions
template<class Archive, class Type, class Key, class Hash, class Compare, class Allocator >
inline void serialize(
Archive & ar,
boost::unordered_map<Key, Type, Hash, Compare, Allocator> &t,
const unsigned int file_version
){
boost::serialization::split_free(ar, t, file_version);
}

// multimap
template<class Archive, class Type, class Key, class Hash, class Compare, class Allocator >
inline void save(
Archive & ar,
const boost::unordered_multimap<Key, Type, Hash, Compare, Allocator> &t,
const unsigned int /* file_version */
){
boost::serialization::stl::save_collection<
Archive,
boost::unordered_multimap<Key, Type, Hash, Compare, Allocator>
>(ar, t);
}

template<class Archive, class Type, class Key, class Hash, class Compare, class Allocator >
inline void load(
Archive & ar,
boost::unordered_multimap<Key, Type, Hash, Compare, Allocator> &t,
const unsigned int /* file_version */
){
boost::serialization::stl::load_collection<
Archive,
boost::unordered_multimap<Key, Type, Hash, Compare, Allocator>,
boost::serialization::stl::archive_input_multimap<
Archive, boost::unordered_multimap<Key, Type, Hash, Compare, Allocator>
>,
boost::serialization::stl::no_reserve_imp<
boost::unordered_multimap<Key, Type, Hash, Compare, Allocator>
>
>(ar, t);
}

// split non-intrusive serialization function member into separate
// non intrusive save/load member functions
template<class Archive, class Type, class Key, class Hash, class Compare, class Allocator >
inline void serialize(
Archive & ar,
boost::unordered_multimap<Key, Type, Hash, Compare, Allocator> &t,
const unsigned int file_version
){
boost::serialization::split_free(ar, t, file_version);
}

} // serialization
} // namespace boost

#endif // BOOST_SERIALIZATION_UNORDEREDMAP_HPP