std_tuple/detail/end_impl.hpp

0001 /*=============================================================================
0002     Copyright (c) 2001-2011 Joel de Guzman
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007 #if !defined(BOOST_FUSION_END_IMPL_09242011_1744)
0008 #define BOOST_FUSION_END_IMPL_09242011_1744
0009
0010 #include <boost/fusion/support/config.hpp>
0011 #include <boost/fusion/adapted/std_tuple/std_tuple_iterator.hpp>
0012 #include <boost/type_traits/remove_const.hpp>
0013 #include <tuple>
0014
0015 namespace boost { namespace fusion
0016 {
0017     struct std_tuple_tag;
0018
0019     namespace extension
0020     {
0021         template<typename T>
0022         struct end_impl;
0023
0024         template <>
0025         struct end_impl<std_tuple_tag>
0026         {
0027             template <typename Sequence>
0028             struct apply
0029             {
0030                 typedef typename remove_const<Sequence>::type seq_type;
0031                 static int const size = std::tuple_size<seq_type>::value;
0032                 typedef std_tuple_iterator<Sequence, size> type;
0033
0034                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
0035                 static type
0036                 call(Sequence& v)
0037                 {
0038                     return type(v);
0039                 }
0040             };
0041         };
0042     }
0043 }}
0044
0045 #endif