fusion/mpl/begin.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_BEGIN_10022005_1620)
0008 #define FUSION_BEGIN_10022005_1620
0009
0010 #include <boost/fusion/support/config.hpp>
0011 #include <boost/mpl/begin_end.hpp>
0012 #include <boost/fusion/sequence/intrinsic/begin.hpp>
0013 #include <boost/fusion/adapted/mpl/detail/begin_impl.hpp>
0014 #include <boost/fusion/iterator/mpl/fusion_iterator.hpp>
0015
0016 namespace boost { namespace mpl
0017 {
0018     template <typename Tag>
0019     struct begin_impl;
0020
0021     template <>
0022     struct begin_impl<fusion::fusion_sequence_tag>
0023     {
0024         template <typename Sequence>
0025         struct apply
0026         {
0027             typedef fusion_iterator<typename fusion::result_of::begin<Sequence>::type> type;
0028         };
0029     };
0030 }}
0031
0032 #endif