ceph/src/boost/libs/fusion/include/boost/fusion/mpl/erase_key.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_ERASE_KEY_10022005_1907)
   8 #define FUSION_ERASE_KEY_10022005_1907
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/mpl/erase_key.hpp>
  12 #include <boost/fusion/support/tag_of.hpp>
  13 #include <boost/fusion/algorithm/transformation/erase_key.hpp>
  14 #include <boost/fusion/sequence/convert.hpp>
  15
  16 namespace boost { namespace mpl
  17 {
  18     template <typename Tag>
  19     struct erase_key_impl;
  20
  21     template <>
  22     struct erase_key_impl<fusion::fusion_sequence_tag>
  23     {
  24         template <typename Sequence, typename Key>
  25         struct apply
  26         {
  27             typedef typename
  28                 fusion::result_of::erase_key<Sequence, Key>::type
  29             result;
  30
  31             typedef typename
  32                 fusion::result_of::convert<
  33                     typename fusion::detail::tag_of<Sequence>::type, result>::type
  34             type;
  35         };
  36     };
  37 }}
  38
  39 #endif
  40