projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2011 Joel de Guzman | |
| 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(FUSION_REVERSE_VIEW_07202005_0836) | |
| 8 | #define FUSION_REVERSE_VIEW_07202005_0836 | |
| 9 | ||
| 10 | #include <boost/fusion/support/config.hpp> | |
| 11 | #include <boost/fusion/support/detail/access.hpp> | |
| 12 | #include <boost/fusion/support/is_view.hpp> | |
| 13 | #include <boost/fusion/support/category_of.hpp> | |
| 14 | #include <boost/fusion/view/reverse_view/reverse_view_iterator.hpp> | |
| 15 | #include <boost/fusion/view/reverse_view/detail/begin_impl.hpp> | |
| 16 | #include <boost/fusion/view/reverse_view/detail/end_impl.hpp> | |
| 17 | #include <boost/fusion/view/reverse_view/detail/at_impl.hpp> | |
| 18 | #include <boost/fusion/view/reverse_view/detail/value_at_impl.hpp> | |
| 19 | #include <boost/fusion/support/sequence_base.hpp> | |
| 20 | #include <boost/fusion/sequence/intrinsic/begin.hpp> | |
| 21 | #include <boost/fusion/sequence/intrinsic/end.hpp> | |
| 22 | #include <boost/fusion/sequence/intrinsic/size.hpp> | |
| 23 | #include <boost/type_traits/is_base_of.hpp> | |
| 24 | #include <boost/static_assert.hpp> | |
| 25 | #include <boost/mpl/bool.hpp> | |
| 26 | #include <boost/mpl/eval_if.hpp> | |
| 27 | #include <boost/mpl/inherit.hpp> | |
| 28 | #include <boost/mpl/identity.hpp> | |
| 29 | ||
| 30 | namespace boost { namespace fusion | |
| 31 | { | |
| 32 | struct reverse_view_tag; | |
| 33 | struct fusion_sequence_tag; | |
| 34 | ||
| 35 | template <typename Sequence> | |
| 36 | struct reverse_view : sequence_base<reverse_view<Sequence> > | |
| 37 | { | |
| 38 | typedef reverse_view_tag fusion_tag; | |
| 39 | typedef fusion_sequence_tag tag; // this gets picked up by MPL | |
| 40 | typedef mpl::true_ is_view; | |
| 41 | ||
| 42 | typedef Sequence seq_type; | |
| 43 | typedef typename traits::category_of<Sequence>::type category; | |
| 44 | typedef typename result_of::begin<Sequence>::type first_type; | |
| 45 | typedef typename result_of::end<Sequence>::type last_type; | |
| 46 | typedef typename result_of::size<Sequence>::type size; | |
| 47 | ||
| 48 | BOOST_STATIC_ASSERT(( | |
| 49 | is_base_of< | |
| 50 | bidirectional_traversal_tag | |
| 51 | , typename traits::category_of<first_type>::type>::value)); | |
| 52 | ||
| 53 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 54 | reverse_view(Sequence& in_seq) | |
| 55 | : seq(in_seq) | |
| 56 | {} | |
| 57 | ||
| 58 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 59 | first_type first() const { return fusion::begin(seq); } | |
| 60 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 61 | last_type last() const { return fusion::end(seq); } | |
| 62 | typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq; | |
| 63 | ||
| 64 | private: | |
| 65 | // silence MSVC warning C4512: assignment operator could not be generated | |
| 66 | reverse_view& operator= (reverse_view const&); | |
| 67 | }; | |
| 68 | }} | |
| 69 | ||
| 70 | #endif | |
| 71 | ||
| 72 |