| /*============================================================================= |
| Copyright (c) 2006 Eric Niebler |
| |
| 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_SEGMENTS_04052005_1141) |
| #define FUSION_SEGMENTS_04052005_1141 |
| |
| #include <boost/fusion/support/tag_of.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| // segments: returns a sequence of sequences |
| namespace extension |
| { |
| template <typename Tag> |
| struct segments_impl |
| { |
| template <typename Sequence> |
| struct apply {}; |
| }; |
| } |
| |
| namespace result_of |
| { |
| template <typename Sequence> |
| struct segments |
| { |
| typedef typename |
| extension::segments_impl<typename traits::tag_of<Sequence>::type>:: |
| template apply<Sequence>::type |
| type; |
| }; |
| } |
| |
| template <typename Sequence> |
| typename result_of::segments<Sequence>::type |
| segments(Sequence & seq) |
| { |
| return |
| extension::segments_impl<typename traits::tag_of<Sequence>::type>:: |
| template apply<Sequence>::call(seq); |
| } |
| |
| template <typename Sequence> |
| typename result_of::segments<Sequence const>::type |
| segments(Sequence const& seq) |
| { |
| return |
| extension::segments_impl<typename traits::tag_of<Sequence>::type>:: |
| template apply<Sequence const>::call(seq); |
| } |
| }} |
| |
| #endif |