ceph/src/boost/boost/container/detail/pair_key_mapped_of_value.hpp

   1 //////////////////////////////////////////////////////////////////////////////
   2 //
   3 // (C) Copyright Ion Gaztanaga 2005-2013. Distributed under the Boost
   4 // Software License, Version 1.0. (See accompanying file
   5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // See http://www.boost.org/libs/container for documentation.
   8 //
   9 //////////////////////////////////////////////////////////////////////////////
  10 #ifndef BOOST_CONTAINER_PAIR_KEY_MAPPED_OF_VALUE_HPP
  11 #define BOOST_CONTAINER_PAIR_KEY_MAPPED_OF_VALUE_HPP
  12
  13 #ifndef BOOST_CONFIG_HPP
  14 #  include <boost/config.hpp>
  15 #endif
  16
  17 #if defined(BOOST_HAS_PRAGMA_ONCE)
  18 #  pragma once
  19 #endif
  20
  21 #include <boost/container/detail/config_begin.hpp>
  22 #include <boost/container/detail/workaround.hpp>
  23
  24 namespace boost {
  25 namespace container {
  26
  27 template<class Key, class Mapped>
  28 struct pair_key_mapped_of_value
  29 {
  30    typedef Key    key_type;
  31    typedef Mapped mapped_type;
  32
  33    template<class Pair>
  34    const key_type & key_of_value(const Pair &p) const
  35    {  return p.first;  }
  36
  37    template<class Pair>
  38    const mapped_type & mapped_of_value(const Pair &p) const
  39    {  return p.second;  }
  40
  41    template<class Pair>
  42    key_type & key_of_value(Pair &p) const
  43    {  return const_cast<key_type&>(p.first);  }
  44
  45    template<class Pair>
  46    mapped_type & mapped_of_value(Pair &p) const
  47    {  return p.second;  }
  48
  49 };
  50
  51 }}
  52
  53 #include <boost/container/detail/config_end.hpp>
  54
  55 #endif   // BOOST_CONTAINER_PAIR_KEY_MAPPED_OF_VALUE_HPP