| /*============================================================================= |
| Copyright (c) 2009 Hartmut Kaiser |
| |
| 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(BOOST_FUSION_NVIEW_DISTANCE_IMPL_SEP_23_2009_0328PM) |
| #define BOOST_FUSION_NVIEW_DISTANCE_IMPL_SEP_23_2009_0328PM |
| |
| #include <boost/fusion/iterator/distance.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| struct nview_iterator_tag; |
| |
| namespace extension |
| { |
| template<typename Tag> |
| struct distance_impl; |
| |
| template<> |
| struct distance_impl<nview_iterator_tag> |
| { |
| template<typename First, typename Last> |
| struct apply |
| : result_of::distance<typename First::first_type, typename Last::first_type> |
| { |
| typedef typename result_of::distance< |
| typename First::first_type, typename Last::first_type |
| >::type type; |
| |
| static type |
| call(First const& /*first*/, Last const& /*last*/) |
| { |
| return type(); |
| } |
| }; |
| }; |
| } |
| |
| }} |
| |
| #endif |