| /* 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 |