Chris@16: #ifndef BOOST_SERIALIZATION_TRAITS_HPP
Chris@16: #define BOOST_SERIALIZATION_TRAITS_HPP
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@16: // traits.hpp:
Chris@16: 
Chris@16: // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
Chris@16: // Use, modification and distribution is subject to the Boost Software
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org for updates, documentation, and revision history.
Chris@16: 
Chris@16: // This header is used to apply serialization traits to templates.  The
Chris@16: // standard system can't be used for platforms which don't support
Chris@16: // Partial Templlate Specialization.  
Chris@16: 
Chris@16: // The motivation for this is the Name-Value Pair (NVP) template.
Chris@16: // it has to work the same on all platforms in order for archives
Chris@16: // to be portable accross platforms.
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/static_assert.hpp>
Chris@16: 
Chris@16: #include <boost/mpl/int.hpp>
Chris@16: #include <boost/mpl/bool.hpp>
Chris@16: #include <boost/serialization/level_enum.hpp>
Chris@16: #include <boost/serialization/tracking_enum.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace serialization {
Chris@16: 
Chris@16: // common base class used to detect appended traits class
Chris@16: struct basic_traits {};
Chris@16: 
Chris@16: template <class T>
Chris@16: struct extended_type_info_impl;
Chris@16: 
Chris@16: template<
Chris@16:     class T, 
Chris@16:     int Level, 
Chris@16:     int Tracking,
Chris@16:     unsigned int Version = 0,
Chris@16:     class ETII = extended_type_info_impl< T >,
Chris@16:     class Wrapper = mpl::false_
Chris@16: >
Chris@16: struct traits : public basic_traits {
Chris@16:     BOOST_STATIC_ASSERT(Version == 0 || Level >= object_class_info);
Chris@16:     BOOST_STATIC_ASSERT(Tracking == track_never || Level >= object_serializable);
Chris@101:     typedef typename mpl::int_<Level> level;
Chris@101:     typedef typename mpl::int_<Tracking> tracking;
Chris@101:     typedef typename mpl::int_<Version> version;
Chris@16:     typedef ETII type_info_implementation;
Chris@16:     typedef Wrapper is_wrapper;
Chris@16: };
Chris@16: 
Chris@16: } // namespace serialization
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // BOOST_SERIALIZATION_TRAITS_HPP