ceph/src/boost/boost/phoenix/object/detail/target.hpp

   1 /*==============================================================================
   2     Copyright (c) 2001-2010 Joel de Guzman
   3     Copyright (c) 2010 Thomas Heller
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #ifndef BOOST_PHOENIX_OBJECT_DETAIL_CAST_TARGET_HPP
   9 #define BOOST_PHOENIX_OBJECT_DETAIL_CAST_TARGET_HPP
  10
  11 namespace boost { namespace phoenix
  12 {
  13     namespace detail
  14     {
  15         template <typename T>
  16         struct target
  17         {
  18             typedef T type;
  19         };
  20
  21         namespace result_of
  22         {
  23             template <typename T>
  24             struct target
  25             {
  26                 typedef
  27                     typename proto::detail::uncvref<
  28                         typename proto::result_of::value<T>::type
  29                     >::type
  30                     target_type;
  31                 typedef typename target_type::type type;
  32             };
  33
  34             template <typename T>
  35             struct target<T const&>
  36                 : target<T>
  37             {};
  38
  39             template <typename T>
  40             struct target<T&>
  41                 : target<T>
  42             {};
  43         }
  44     }
  45 }}
  46
  47 #endif