| 1 | /*============================================================================= |
|---|---|
| 2 | Copyright (c) 2011 Eric Niebler |
| 3 | |
| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 6 | ==============================================================================*/ |
| 7 | #if !defined(BOOST_FUSION_ITERATOR_RANGE_SEGMENTS_HPP_INCLUDED) |
| 8 | #define BOOST_FUSION_ITERATOR_RANGE_SEGMENTS_HPP_INCLUDED |
| 9 | |
| 10 | #include <boost/fusion/support/config.hpp> |
| 11 | #include <boost/mpl/assert.hpp> |
| 12 | #include <boost/fusion/sequence/intrinsic/segments.hpp> |
| 13 | #include <boost/fusion/support/is_segmented.hpp> |
| 14 | #include <boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp> |
| 15 | |
| 16 | namespace boost { namespace fusion |
| 17 | { |
| 18 | struct iterator_range_tag; |
| 19 | |
| 20 | namespace extension |
| 21 | { |
| 22 | template <typename Tag> |
| 23 | struct segments_impl; |
| 24 | |
| 25 | template <> |
| 26 | struct segments_impl<iterator_range_tag> |
| 27 | { |
| 28 | template <typename Sequence> |
| 29 | struct apply |
| 30 | { |
| 31 | typedef |
| 32 | detail::make_segmented_range< |
| 33 | typename Sequence::begin_type |
| 34 | , typename Sequence::end_type |
| 35 | > |
| 36 | impl; |
| 37 | |
| 38 | BOOST_MPL_ASSERT((traits::is_segmented<typename impl::type>)); |
| 39 | |
| 40 | typedef |
| 41 | typename result_of::segments<typename impl::type>::type |
| 42 | type; |
| 43 | |
| 44 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| 45 | static type call(Sequence & seq) |
| 46 | { |
| 47 | return fusion::segments(impl::call(seq.first, seq.last)); |
| 48 | } |
| 49 | }; |
| 50 | }; |
| 51 | } |
| 52 | }} |
| 53 | |
| 54 | #endif |
| 55 |
