ceph/src/boost/libs/fusion/include/boost/fusion/container/set/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_1341)
   9 #define FUSION_CONVERT_IMPL_09232005_1341
  10
  11 #include <boost/fusion/support/config.hpp>
  12 #include <boost/fusion/container/set/detail/as_set.hpp>
  13 #include <boost/fusion/container/set/set.hpp>
  14 #include <boost/fusion/sequence/intrinsic/begin.hpp>
  15 #include <boost/fusion/sequence/intrinsic/size.hpp>
  16
  17 namespace boost { namespace fusion
  18 {
  19     struct set_tag;
  20
  21     namespace extension
  22     {
  23         template <typename T>
  24         struct convert_impl;
  25
  26         template <>
  27         struct convert_impl<set_tag>
  28         {
  29             template <typename Sequence>
  30             struct apply
  31             {
  32                 typedef detail::as_set<result_of::size<Sequence>::value> gen;
  33                 typedef typename gen::
  34                     template apply<typename result_of::begin<Sequence>::type>::type
  35                 type;
  36
  37                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  38                 static type call(Sequence& seq)
  39                 {
  40                     return gen::call(fusion::begin(seq));
  41                 }
  42             };
  43         };
  44     }
  45 }}
  46
  47 #endif