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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) | |
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/mpl/bool_fwd.hpp> | |
32 | #include <boost/serialization/level_enum.hpp> | |
33 | #include <boost/serialization/tracking_enum.hpp> | |
34 | ||
35 | namespace boost { | |
36 | namespace serialization { | |
37 | ||
38 | // common base class used to detect appended traits class | |
39 | struct basic_traits {}; | |
40 | ||
41 | template <class T> | |
42 | struct extended_type_info_impl; | |
43 | ||
44 | template< | |
45 | class T, | |
46 | int Level, | |
47 | int Tracking, | |
48 | unsigned int Version = 0, | |
49 | class ETII = extended_type_info_impl< T >, | |
50 | class Wrapper = mpl::false_ | |
51 | > | |
52 | struct traits : public basic_traits { | |
53 | BOOST_STATIC_ASSERT(Version == 0 || Level >= object_class_info); | |
54 | BOOST_STATIC_ASSERT(Tracking == track_never || Level >= object_serializable); | |
55 | typedef typename mpl::int_<Level> level; | |
56 | typedef typename mpl::int_<Tracking> tracking; | |
57 | typedef typename mpl::int_<Version> version; | |
58 | typedef ETII type_info_implementation; | |
59 | typedef Wrapper is_wrapper; | |
60 | }; | |
61 | ||
62 | } // namespace serialization | |
63 | } // namespace boost | |
64 | ||
65 | #endif // BOOST_SERIALIZATION_TRAITS_HPP |