ceph/src/boost/libs/fusion/include/boost/fusion/container/deque/detail/convert_impl.hpp

   1 /*=============================================================================
   2     Copyright (c) 2005-2012 Joel de Guzman
   3     Copyright (c) 2005-2006 Dan Marsden
   4     Copyright (c) 2015 Kohei Takahashi
   5
   6     Distributed under the Boost Software License, Version 1.0. (See accompanying
   7     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   8 ==============================================================================*/
   9 #if !defined(FUSION_CONVERT_IMPL_20061213_2207)
  10 #define FUSION_CONVERT_IMPL_20061213_2207
  11
  12 #include <boost/fusion/support/config.hpp>
  13 #include <boost/fusion/container/deque/convert.hpp>
  14 #include <boost/fusion/container/deque/deque.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 deque_tag;
  21
  22     namespace result_of
  23     {
  24         template <typename Sequence>
  25         struct as_deque;
  26     }
  27
  28     namespace extension
  29     {
  30         template <typename T>
  31         struct convert_impl;
  32
  33         template <>
  34         struct convert_impl<deque_tag>
  35         {
  36             template <typename Sequence>
  37             struct apply
  38             {
  39                 typedef result_of::as_deque<Sequence> gen;
  40                 typedef typename gen::type type;
  41
  42                 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  43                 static type call(Sequence& seq)
  44                 {
  45                     return gen::call(fusion::begin(seq)
  46 #if defined(BOOST_FUSION_HAS_VARIADIC_DEQUE)
  47                         , fusion::end(seq)
  48 #endif
  49                     );
  50                 }
  51             };
  52         };
  53     }
  54 }}
  55
  56 #endif