ceph/src/boost/boost/bimap/relation/detail/to_mutable_relation_functor.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/detail/to_mutable_relation_functor.hpp
  10 /// \brief functors to convert types to mutable relations
  11
  12 #ifndef BOOST_BIMAP_RELATION_DETAIL_TO_MUTABLE_RELATION_FUNCTOR_HPP
  13 #define BOOST_BIMAP_RELATION_DETAIL_TO_MUTABLE_RELATION_FUNCTOR_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/pair_type_by.hpp>
  22 #include <boost/bimap/relation/detail/mutant.hpp>
  23 #include <boost/bimap/relation/mutant_relation.hpp>
  24
  25 namespace boost {
  26 namespace bimaps {
  27 namespace relation {
  28 namespace detail {
  29
  30 /// \brief Functor used in map views
  31
  32 template< class Tag, class Relation >
  33 struct pair_to_relation_functor
  34 {
  35     const Relation
  36         operator()(const BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
  37                             pair_type_by<Tag,Relation>::type & p) const
  38     {
  39         return Relation(p);
  40     }
  41 };
  42
  43 template< class Tag, class TA, class TB, class Info >
  44 struct pair_to_relation_functor<
  45     Tag,::boost::bimaps::relation::mutant_relation<TA,TB,Info,true> >
  46 {
  47     typedef ::boost::bimaps::relation::mutant_relation<TA,TB,Info,true> Relation;
  48
  49     Relation &
  50         operator()( BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
  51             pair_type_by<Tag,Relation>::type & p ) const
  52     {
  53         return ::boost::bimaps::relation::detail::mutate<Relation>(p);
  54     }
  55
  56     const Relation &
  57         operator()( const BOOST_DEDUCED_TYPENAME ::boost::bimaps::relation::support::
  58             pair_type_by<Tag,Relation>::type & p) const
  59     {
  60         return ::boost::bimaps::relation::detail::mutate<Relation>(p);
  61     }
  62 };
  63
  64
  65 /// \brief Used in set views
  66
  67 template< class Relation >
  68 struct get_mutable_relation_functor
  69 {
  70     const Relation
  71     operator()( const BOOST_DEDUCED_TYPENAME Relation::above_view & r ) const
  72     {
  73         return Relation(r);
  74     }
  75 };
  76
  77 template< class TA, class TB, class Info >
  78 struct get_mutable_relation_functor< ::boost::bimaps::relation::mutant_relation<TA,TB,Info,true> >
  79 {
  80     typedef ::boost::bimaps::relation::mutant_relation<TA,TB,Info,true> Relation;
  81
  82     Relation &
  83     operator()( BOOST_DEDUCED_TYPENAME Relation::above_view & r ) const
  84     {
  85         return ::boost::bimaps::relation::detail::mutate<Relation>(r);
  86     }
  87
  88     const Relation &
  89     operator()( const BOOST_DEDUCED_TYPENAME Relation::above_view & r ) const
  90     {
  91         return ::boost::bimaps::relation::detail::mutate<Relation>(r);
  92     }
  93 };
  94
  95 } // namespace detail
  96 } // namespace relation
  97 } // namespace bimaps
  98 } // namespace boost
  99
 100
 101 #endif // BOOST_BIMAP_RELATION_DETAIL_TO_MUTABLE_RELATION_FUNCTOR_HPP
 102