ceph/src/boost/libs/fusion/include/boost/fusion/support/detail/access.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 ==============================================================================*/
   7 #if !defined(FUSION_ACCESS_04182005_0737)
   8 #define FUSION_ACCESS_04182005_0737
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/type_traits/add_const.hpp>
  12 #include <boost/type_traits/add_reference.hpp>
  13
  14 namespace boost { namespace fusion { namespace detail
  15 {
  16     template <typename T>
  17     struct ref_result
  18     {
  19         typedef typename add_reference<T>::type type;
  20     };
  21
  22     template <typename T>
  23     struct cref_result
  24     {
  25         typedef typename
  26             add_reference<
  27                 typename add_const<T>::type
  28             >::type
  29         type;
  30     };
  31
  32     template <typename T>
  33     struct call_param
  34     {
  35         typedef T const& type;
  36     };
  37
  38     template <typename T>
  39     struct call_param<T&>
  40     {
  41         typedef T& type;
  42     };
  43
  44     template <typename T>
  45     struct call_param<T const>
  46     {
  47         typedef T const& type;
  48     };
  49
  50     template <typename T>
  51     struct call_param<T volatile>
  52     {
  53         typedef T const& type;
  54     };
  55
  56     template <typename T>
  57     struct call_param<T const volatile>
  58     {
  59         typedef T const& type;
  60     };
  61
  62 }}}
  63
  64 #endif
  65