3rdparty/boost/boost/fusion/container/list/detail/convert_impl.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3     Copyright (c) 2005-2006 Dan Marsden
   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 #if !defined(FUSION_CONVERT_IMPL_09232005_1215)
   9 #define FUSION_CONVERT_IMPL_09232005_1215
  10
  11 #include <boost/fusion/support/config.hpp>
  12 #include <boost/fusion/container/list/cons.hpp>
  13 #include <boost/fusion/container/list/detail/build_cons.hpp>
  14 #include <boost/fusion/sequence/intrinsic/empty.hpp>
  15 #include <boost/fusion/sequence/intrinsic/begin.hpp>
  16 #include <boost/fusion/sequence/intrinsic/end.hpp>
  17
  18 namespace boost { namespace fusion
  19 {
  20     struct cons_tag;
  21
  22     namespace extension
  23     {
  24         template <typename T>
  25         struct convert_impl;
  26
  27         template <>
  28         struct convert_impl<cons_tag>
  29         {
  30             template <typename Sequence>
  31             struct apply
  32             {
  33                 typedef typename
  34                     detail::build_cons<
  35                         typename result_of::begin<Sequence>::type
  36                       , typename result_of::end<Sequence>::type
  37                     >
  38                 build_cons;
  39
  40                 typedef typename build_cons::type type;
  41
  42                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  43                 static type
  44                 call(Sequence& seq)
  45                 {
  46                     return build_cons::call(fusion::begin(seq), fusion::end(seq));
  47                 }
  48             };
  49         };
  50     }
  51 }}
  52
  53 #endif