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_NEXT_IMPL_07162005_0136) | |
| 8 | #define FUSION_NEXT_IMPL_07162005_0136 | |
| 9 | ||
| 10 | #include <boost/fusion/support/config.hpp> | |
| 11 | #include <boost/fusion/iterator/next.hpp> | |
| 12 | #include <boost/fusion/iterator/equal_to.hpp> | |
| 13 | #include <boost/mpl/if.hpp> | |
| 14 | ||
| 15 | namespace boost { namespace fusion | |
| 16 | { | |
| 17 | struct joint_view_iterator_tag; | |
| 18 | ||
| 19 | template <typename Category, typename First, typename Last, typename Concat> | |
| 20 | struct joint_view_iterator; | |
| 21 | ||
| 22 | namespace extension | |
| 23 | { | |
| 24 | template <typename Tag> | |
| 25 | struct next_impl; | |
| 26 | ||
| 27 | template <> | |
| 28 | struct next_impl<joint_view_iterator_tag> | |
| 29 | { | |
| 30 | template <typename Iterator> | |
| 31 | struct apply | |
| 32 | { | |
| 33 | typedef typename Iterator::first_type first_type; | |
| 34 | typedef typename Iterator::last_type last_type; | |
| 35 | typedef typename Iterator::concat_type concat_type; | |
| 36 | typedef typename Iterator::category category; | |
| 37 | typedef typename result_of::next<first_type>::type next_type; | |
| 38 | typedef result_of::equal_to<next_type, last_type> equal_to; | |
| 39 | ||
| 40 | typedef typename | |
| 41 | mpl::if_< | |
| 42 | equal_to | |
| 43 | , concat_type | |
| 44 | , joint_view_iterator<category, next_type, last_type, concat_type> | |
| 45 | >::type | |
| 46 | type; | |
| 47 | ||
| 48 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 49 | static type | |
| 50 | call(Iterator const& i, mpl::true_) | |
| 51 | { | |
| 52 | return i.concat; | |
| 53 | } | |
| 54 | ||
| 55 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 56 | static type | |
| 57 | call(Iterator const& i, mpl::false_) | |
| 58 | { | |
| 59 | return type(fusion::next(i.first), i.concat); | |
| 60 | } | |
| 61 | ||
| 62 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 63 | static type | |
| 64 | call(Iterator const& i) | |
| 65 | { | |
| 66 | return call(i, equal_to()); | |
| 67 | } | |
| 68 | }; | |
| 69 | }; | |
| 70 | } | |
| 71 | }} | |
| 72 | ||
| 73 | #endif | |
| 74 | ||
| 75 |