1// Boost.Bimap
2//
3// Copyright (c) 2006-2007 Matias Capeletto
4//
5// Distributed under the Boost Software License, Version 1.0.
6// (See accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt)
8
9/// \file relation/detail/metadata_access_builder.hpp
10/// \brief Define macros to help building metafunctions
11
12#ifndef BOOST_BIMAP_RELATION_DETAIL_METADATA_ACCESS_BUILDER_HPP
13#define BOOST_BIMAP_RELATION_DETAIL_METADATA_ACCESS_BUILDER_HPP
14
15#if defined(_MSC_VER)
16#pragma once
17#endif
18
19#include <boost/config.hpp>
20
21#include <boost/bimap/relation/support/is_tag_of_member_at.hpp>
22#include <boost/bimap/detail/debug/static_error.hpp>
23#include <boost/core/enable_if.hpp>
24#include <boost/preprocessor/cat.hpp>
25
26
27
28/******************************************************************************
29 BIMAP SYMMETRIC METADATA ACCESS INTERFACE
30*******************************************************************************
31
32template< class Tag, class SymmetricType >
33struct NAME
34{
35 typedef -unspecified- type;
36};
37
38******************************************************************************/
39
40
41/*===========================================================================*/
42#define BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER( \
43 \
44 NAME, \
45 METADATA_BY_LEFT, \
46 METADATA_BY_RIGHT \
47 ) \
48 \
49 template \
50 < \
51 class Tag, \
52 class SymmetricType, \
53 class Enable = void \
54 > \
55 struct NAME \
56 { \
57 BOOST_BIMAP_STATIC_ERROR( \
58 BOOST_PP_CAT(NAME,_FAILURE), \
59 (SymmetricType,Tag) \
60 ); \
61 }; \
62 \
63 template< class Tag, class SymmetricType > \
64 struct NAME \
65 < \
66 Tag, SymmetricType, \
67 BOOST_DEDUCED_TYPENAME enable_if \
68 < \
69 ::boost::bimaps::relation::support::is_tag_of_member_at_left \
70 < \
71 Tag, \
72 SymmetricType \
73 > \
74 \
75 >::type \
76 > \
77 { \
78 typedef BOOST_DEDUCED_TYPENAME SymmetricType::METADATA_BY_LEFT type; \
79 }; \
80 \
81 template< class Tag, class SymmetricType > \
82 struct NAME \
83 < \
84 Tag, SymmetricType, \
85 BOOST_DEDUCED_TYPENAME enable_if \
86 < \
87 ::boost::bimaps::relation::support::is_tag_of_member_at_right \
88 < \
89 Tag, \
90 SymmetricType \
91 > \
92 \
93 >::type \
94 > \
95 { \
96 typedef BOOST_DEDUCED_TYPENAME SymmetricType::METADATA_BY_RIGHT type; \
97 };
98/*===========================================================================*/
99
100
101#endif // BOOST_BIMAP_RELATION_DETAIL_METADATA_ACCES_BUILDER_HPP
102
103
104

source code of boost/libs/bimap/include/boost/bimap/relation/detail/metadata_access_builder.hpp