1#ifndef BOOST_SERIALIZATION_TYPE_INFO_IMPLEMENTATION_HPP
2#define BOOST_SERIALIZATION_TYPE_INFO_IMPLEMENTATION_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// type_info_implementation.hpp: interface for portable version of type_info
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
20#include <boost/config.hpp>
21#include <boost/detail/workaround.hpp>
22
23#include <boost/static_assert.hpp>
24#include <boost/mpl/eval_if.hpp>
25#include <boost/mpl/identity.hpp>
26#include <boost/type_traits/is_base_and_derived.hpp>
27#include <boost/serialization/traits.hpp>
28
29namespace boost {
30namespace serialization {
31
32// note that T and const T are folded into const T so that
33// there is only one table entry per type
34template<class T>
35struct type_info_implementation {
36 template<class U>
37 struct traits_class_typeinfo_implementation {
38 typedef typename U::type_info_implementation::type type;
39 };
40 // note: at least one compiler complained w/o the full qualification
41 // on basic traits below
42 typedef
43 typename mpl::eval_if<
44 is_base_and_derived<boost::serialization::basic_traits, T>,
45 traits_class_typeinfo_implementation< T >,
46 //else
47 mpl::identity<
48 typename extended_type_info_impl< T >::type
49 >
50 >::type type;
51};
52
53} // namespace serialization
54} // namespace boost
55
56// define a macro to assign a particular derivation of extended_type_info
57// to a specified a class.
58#define BOOST_CLASS_TYPE_INFO(T, ETI) \
59namespace boost { \
60namespace serialization { \
61template<> \
62struct type_info_implementation< T > { \
63 typedef ETI type; \
64}; \
65template<> \
66struct type_info_implementation< const T > { \
67 typedef ETI type; \
68}; \
69} \
70} \
71/**/
72
73#endif /// BOOST_SERIALIZATION_TYPE_INFO_IMPLEMENTATION_HPP
74