fusion/mpl/erase.hpp

0001 /*=============================================================================
0002     Copyright (c) 2001-2011 Joel de Guzman
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007 #if !defined(FUSION_ERASE_10022005_1835)
0008 #define FUSION_ERASE_10022005_1835
0009
0010 #include <boost/fusion/support/config.hpp>
0011 #include <boost/mpl/erase.hpp>
0012 #include <boost/fusion/support/tag_of.hpp>
0013 #include <boost/fusion/algorithm/transformation/erase.hpp>
0014 #include <boost/fusion/sequence/convert.hpp>
0015
0016 namespace boost { namespace mpl
0017 {
0018     template <typename Tag>
0019     struct erase_impl;
0020
0021     template <>
0022     struct erase_impl<fusion::fusion_sequence_tag>
0023     {
0024         template <typename Sequence, typename First, typename Last>
0025         struct apply
0026         {
0027             typedef typename
0028                 fusion::result_of::erase<Sequence, First, Last>::type
0029             result;
0030
0031             typedef typename
0032                 fusion::result_of::convert<
0033                     typename fusion::detail::tag_of<Sequence>::type, result>::type
0034             type;
0035         };
0036     };
0037 }}
0038
0039 #endif
0040