| /*============================================================================= |
| 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_DEREF_IMPL_07202005_0851) |
| #define FUSION_DEREF_IMPL_07202005_0851 |
| |
| #include <boost/fusion/iterator/deref.hpp> |
| #include <boost/fusion/iterator/prior.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| struct reverse_view_iterator_tag; |
| |
| namespace extension |
| { |
| template <typename Tag> |
| struct deref_impl; |
| |
| template <> |
| struct deref_impl<reverse_view_iterator_tag> |
| { |
| template <typename Iterator> |
| struct apply |
| { |
| typedef typename |
| result_of::deref< |
| typename result_of::prior< |
| typename Iterator::first_type |
| >::type |
| >::type |
| type; |
| |
| static type |
| call(Iterator const& i) |
| { |
| return *fusion::prior(i.first); |
| } |
| }; |
| }; |
| } |
| }} |
| |
| #endif |
| |
| |