ceph/src/boost/libs/fusion/include/boost/fusion/adapted/boost_tuple/detail/value_at_impl.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(BOOST_FUSION_VALUE_AT_IMPL_09262006_1926)
   8 #define BOOST_FUSION_VALUE_AT_IMPL_09262006_1926
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/tuple/tuple.hpp>
  12
  13 namespace boost { namespace fusion
  14 {
  15     struct boost_tuple_tag;
  16
  17     namespace extension
  18     {
  19         template<typename T>
  20         struct value_at_impl;
  21
  22         template <>
  23         struct value_at_impl<boost_tuple_tag>
  24         {
  25             template <typename Sequence, typename N>
  26             struct apply : tuples::element<N::value, Sequence> {};
  27         };
  28     }
  29 }}
  30
  31 #endif