/* Copyright 2003-2010 Joaquin M Lopez Munoz. | |
* Distributed under 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) | |
* | |
* See http://www.boost.org/libs/multi_index for library home page. | |
*/ | |
#ifndef BOOST_MULTI_INDEX_DETAIL_SERIALIZATION_VERSION_HPP | |
#define BOOST_MULTI_INDEX_DETAIL_SERIALIZATION_VERSION_HPP | |
#if defined(_MSC_VER)&&(_MSC_VER>=1200) | |
#pragma once | |
#endif | |
#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ | |
#include <boost/serialization/split_member.hpp> | |
#include <boost/serialization/version.hpp> | |
namespace boost{ | |
namespace multi_index{ | |
namespace detail{ | |
/* Helper class for storing and retrieving a given type serialization class | |
* version while avoiding saving the number multiple times in the same | |
* archive. | |
* Behavior undefined if template partial specialization is not supported. | |
*/ | |
template<typename T> | |
struct serialization_version | |
{ | |
serialization_version(): | |
value(boost::serialization::version<serialization_version>::value){} | |
serialization_version& operator=(unsigned int x){value=x;return *this;}; | |
operator unsigned int()const{return value;} | |
private: | |
friend class boost::serialization::access; | |
BOOST_SERIALIZATION_SPLIT_MEMBER() | |
template<class Archive> | |
void save(Archive&,const unsigned int)const{} | |
template<class Archive> | |
void load(Archive&,const unsigned int version) | |
{ | |
this->value=version; | |
} | |
unsigned int value; | |
}; | |
} /* namespace multi_index::detail */ | |
} /* namespace multi_index */ | |
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
namespace serialization { | |
template<typename T> | |
struct version<boost::multi_index::detail::serialization_version<T> > | |
{ | |
BOOST_STATIC_CONSTANT(int,value=version<T>::value); | |
}; | |
} /* namespace serialization */ | |
#endif | |
} /* namespace boost */ | |
#endif |