| /*============================================================================= |
| Copyright (c) 2001-2006 Joel de Guzman |
| |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| ==============================================================================*/ |
| #if !defined(FUSION_PRIOR_IMPL_07202005_0857) |
| #define FUSION_PRIOR_IMPL_07202005_0857 |
| |
| #include <boost/fusion/iterator/next.hpp> |
| #include <boost/fusion/iterator/prior.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| struct reverse_view_iterator_tag; |
| |
| template <typename Iterator> |
| struct reverse_view_iterator; |
| |
| namespace extension |
| { |
| template <> |
| struct prior_impl<reverse_view_iterator_tag> |
| { |
| template <typename Iterator> |
| struct apply |
| { |
| typedef typename Iterator::first_type first_type; |
| typedef typename next_impl<typename first_type::fusion_tag>:: |
| template apply<first_type> |
| wrapped; |
| |
| typedef reverse_view_iterator<typename wrapped::type> type; |
| |
| static type |
| call(Iterator const& i) |
| { |
| return type(wrapped::call(i.first)); |
| } |
| }; |
| }; |
| } |
| }} |
| |
| #endif |
| |
| |