source: NonGTP/Boost/boost/serialization/traits.hpp @ 857

Revision 857, 2.0 KB checked in by igarcia, 19 years ago (diff)
Line 
1#ifndef BOOST_SERIALIZATION_TRAITS_HPP
2#define BOOST_SERIALIZATION_TRAITS_HPP
3
4// MS compatible compilers support #pragma once
5#if defined(_MSC_VER) && (_MSC_VER >= 1020)
6# pragma once
7#endif
8
9/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
10// traits.hpp:
11
12// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
13// Use, modification and distribution is subject to the Boost Software
14// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
15// http://www.boost.org/LICENSE_1_0.txt)
16
17//  See http://www.boost.org for updates, documentation, and revision history.
18
19// This header is used to apply serialization traits to templates.  The
20// standard system can't be used for platforms which don't support
21// Partial Templlate Specialization. 
22
23// The motivation for this is the Name-Value Pair (NVP) template.
24// it has to work the same on all platforms in order for archives
25// to be portable accross platforms.
26
27#include <boost/config.hpp>
28#include <boost/static_assert.hpp>
29
30#include <boost/mpl/int.hpp>
31#include <boost/serialization/level_enum.hpp>
32#include <boost/serialization/tracking_enum.hpp>
33#include <boost/serialization/type_info_implementation.hpp>
34
35namespace boost {
36namespace serialization {
37
38// common base class used to detect appended traits class
39struct basic_traits {
40};
41
42template<
43    class T,
44    int Level,
45    int Tracking,
46    unsigned int Version = 0,
47    class ETII = BOOST_SERIALIZATION_EXTENDED_TYPE_INFO_STUB(T)
48>
49struct traits : public basic_traits {
50    BOOST_STATIC_ASSERT(Version == 0 || Level >= object_class_info);
51    BOOST_STATIC_ASSERT(Tracking == track_never || Level >= object_serializable);
52    typedef BOOST_DEDUCED_TYPENAME mpl::int_<Level> level;
53    typedef BOOST_DEDUCED_TYPENAME mpl::int_<Tracking> tracking;
54    typedef BOOST_DEDUCED_TYPENAME mpl::int_<Version> version;
55    typedef ETII type_info_implementation;
56};
57
58} // namespace serialization
59} // namespace boost
60
61#endif // BOOST_SERIALIZATION_TRAITS_HPP
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