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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/support/pair_type_by.hpp | |
10 | /// \brief pair_type_by<tag,relation> metafunction | |
11 | ||
12 | #ifndef BOOST_BIMAP_RELATION_SUPPORT_PAIR_TYPE_BY_HPP | |
13 | #define BOOST_BIMAP_RELATION_SUPPORT_PAIR_TYPE_BY_HPP | |
14 | ||
15 | #if defined(_MSC_VER) | |
16 | #pragma once | |
17 | #endif | |
18 | ||
19 | #include <boost/config.hpp> | |
20 | ||
21 | #include <boost/bimap/relation/detail/metadata_access_builder.hpp> | |
22 | ||
23 | /** \struct boost::bimaps::relation::support::pair_type_by | |
24 | ||
25 | \brief Metafunction to obtain the view type indexed by one of the sides. | |
26 | ||
27 | \code | |
28 | ||
29 | template< class Tag, class Relation > | |
30 | struct pair_type_by | |
31 | { | |
32 | typedef {signature-compatible with std::pair} type; | |
33 | }; | |
34 | ||
35 | \endcode | |
36 | ||
37 | See also member_at, pair_by(). | |
38 | \ingroup relation_group | |
39 | **/ | |
40 | ||
41 | namespace boost { | |
42 | namespace bimaps { | |
43 | namespace relation { | |
44 | namespace support { | |
45 | ||
46 | // Implementation of pair type by metafunction | |
47 | ||
48 | BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER | |
49 | ( | |
50 | pair_type_by, | |
51 | left_pair, | |
52 | right_pair | |
53 | ) | |
54 | ||
55 | } // namespace support | |
56 | } // namespace relation | |
57 | } // namespace bimaps | |
58 | } // namespace boost | |
59 | ||
60 | ||
61 | #endif // BOOST_BIMAP_RELATION_SUPPORT_PAIR_BY_TYPE_HPP | |
62 |