ceph/src/boost/libs/fusion/include/boost/fusion/mpl/at.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(FUSION_AT_10022005_1616)
   8 #define FUSION_AT_10022005_1616
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/mpl/at.hpp>
  12 #include <boost/fusion/sequence/intrinsic/value_at.hpp>
  13
  14 namespace boost {
  15 namespace fusion
  16 {
  17     struct fusion_sequence_tag;
  18 }
  19
  20 namespace mpl
  21 {
  22     template <typename Tag>
  23     struct at_impl;
  24
  25     template <>
  26     struct at_impl<fusion::fusion_sequence_tag>
  27     {
  28         template <typename Sequence, typename N>
  29         struct apply : fusion::result_of::value_at<Sequence, N> {};
  30     };
  31 }}
  32
  33 #endif
  34