| /*============================================================================= |
| Copyright (c) 2009 Christopher Schmidt |
| |
| 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) |
| ==============================================================================*/ |
| |
| #ifndef BOOST_FUSION_ITERATOR_DEREF_DATA_HPP |
| #define BOOST_FUSION_ITERATOR_DEREF_DATA_HPP |
| |
| #include <boost/fusion/support/tag_of.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| struct iterator_facade_tag; |
| |
| namespace extension |
| { |
| template <typename> |
| struct deref_data_impl; |
| |
| template <> |
| struct deref_data_impl<iterator_facade_tag> |
| { |
| template <typename It> |
| struct apply |
| : It::template deref_data<It> |
| {}; |
| }; |
| } |
| |
| namespace result_of |
| { |
| template <typename It> |
| struct deref_data |
| : extension::deref_data_impl<typename traits::tag_of<It>::type>:: |
| template apply<It> |
| {}; |
| } |
| |
| template <typename It> |
| typename result_of::deref_data<It>::type |
| deref_data(It const& it) |
| { |
| return result_of::deref_data<It>::call(it); |
| } |
| }} |
| |
| #endif |