#ifndef BOOST_SERIALIZATION_VERSION_HPP #define BOOST_SERIALIZATION_VERSION_HPP // MS compatible compilers support #pragma once #if defined(_MSC_VER) && (_MSC_VER >= 1020) # pragma once #endif /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 // version.hpp: // (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) // See http://www.boost.org for updates, documentation, and revision history. #include <boost/config.hpp> #include <boost/mpl/int.hpp> #include <boost/mpl/eval_if.hpp> #include <boost/mpl/identity.hpp> #include <boost/mpl/integral_c_tag.hpp> #include <boost/type_traits/is_base_and_derived.hpp> //#include <boost/serialization/traits.hpp> namespace boost { namespace serialization { struct basic_traits; // default version number is 0. Override with higher version // when class definition changes. template<class T> struct version { template<class U> struct traits_class_version { typedef BOOST_DEDUCED_TYPENAME U::version type; }; typedef mpl::integral_c_tag tag; // note: at least one compiler complained w/o the full qualification // on basic traits below typedef BOOST_DEDUCED_TYPENAME mpl::eval_if< is_base_and_derived<boost::serialization::basic_traits,T>, traits_class_version<T>, mpl::int_<0> >::type type; BOOST_STATIC_CONSTANT(unsigned int, value = version::type::value); }; } // namespace serialization } // namespace boost // specify the current version number for the class #define BOOST_CLASS_VERSION(T, N) \ namespace boost { \ namespace serialization { \ template<> \ struct version<T > \ { \ typedef mpl::int_<N> type; \ typedef mpl::integral_c_tag tag; \ BOOST_STATIC_CONSTANT(unsigned int, value = version::type::value); \ /* require that class info saved when versioning is used */ \ /* \ BOOST_STATIC_ASSERT(( \ mpl::or_< \ mpl::equal_to< \ mpl::int_<0>, \ mpl::int_<N> \ >, \ mpl::equal_to< \ implementation_level<T>, \ mpl::int_<object_class_info> \ > \ >::value \ )); \ */ \ }; \ } \ } #endif // BOOST_SERIALIZATION_VERSION_HPP