| /*============================================================================= |
| 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_CONTAINER_SET_DETAIL_DEREF_IMPL_HPP |
| #define BOOST_FUSION_CONTAINER_SET_DETAIL_DEREF_IMPL_HPP |
| |
| #include <boost/fusion/sequence/intrinsic/at.hpp> |
| #include <boost/type_traits/is_const.hpp> |
| |
| namespace boost { namespace fusion { namespace extension |
| { |
| template <typename> |
| struct deref_impl; |
| |
| template <> |
| struct deref_impl<set_iterator_tag> |
| { |
| template <typename It> |
| struct apply |
| { |
| typedef typename |
| result_of::at< |
| typename mpl::if_< |
| is_const<typename It::seq_type> |
| , typename It::seq_type::storage_type const |
| , typename It::seq_type::storage_type |
| >::type |
| , typename It::index |
| >::type |
| type; |
| |
| static type |
| call(It const& it) |
| { |
| return ::boost::fusion::at<typename It::index>(it.seq->get_data()); |
| } |
| }; |
| }; |
| }}} |
| |
| #endif |