ceph/src/boost/boost/bimap/relation/support/opposite_tag.hpp

   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/opposite_tag.hpp
  10 /// \brief Metafunction to obtain the opposite tag in a relation.
  11
  12 #ifndef BOOST_BIMAP_RELATION_SUPPORT_OPPOSITE_TAG_HPP
  13 #define BOOST_BIMAP_RELATION_SUPPORT_OPPOSITE_TAG_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::opposite_tag
  24
  25 \brief Metafunction to obtain the opposite tag in a relation.
  26
  27 \code
  28
  29 template< class Tag, class Relation >
  30 struct opposite_tag
  31 {
  32         typedef {OppositeTag} type;
  33 };
  34
  35 \endcode
  36
  37 \ingroup relation_group
  38                                                                     **/
  39
  40 namespace boost {
  41 namespace bimaps {
  42 namespace relation {
  43 namespace support {
  44
  45 // Implementation of const pair reference type by metafunction
  46
  47 BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER
  48 (
  49     opossite_tag,
  50     right_tag,
  51     left_tag
  52 )
  53
  54 } // namespace support
  55 } // namespace relation
  56 } // namespace bimaps
  57 } // namespace boost
  58
  59
  60 #endif // BOOST_BIMAP_RELATION_SUPPORT_OPPOSITE_TAG_HPP
  61