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_BEGIN_IMPL_07162005_0115) | |
| 8 | #define FUSION_BEGIN_IMPL_07162005_0115 | |
| 9 | ||
| 10 | #include <boost/fusion/support/config.hpp> | |
| 11 | #include <boost/fusion/iterator/equal_to.hpp> | |
| 12 | #include <boost/mpl/if.hpp> | |
| 13 | ||
| 14 | namespace boost { namespace fusion | |
| 15 | { | |
| 16 | struct joint_view_tag; | |
| 17 | ||
| 18 | template <typename Category, typename First, typename Last, typename Concat> | |
| 19 | struct joint_view_iterator; | |
| 20 | ||
| 21 | namespace extension | |
| 22 | { | |
| 23 | template <typename Tag> | |
| 24 | struct begin_impl; | |
| 25 | ||
| 26 | template <> | |
| 27 | struct begin_impl<joint_view_tag> | |
| 28 | { | |
| 29 | template <typename Sequence> | |
| 30 | struct apply | |
| 31 | { | |
| 32 | typedef typename Sequence::first_type first_type; | |
| 33 | typedef typename Sequence::last_type last_type; | |
| 34 | typedef typename Sequence::concat_type concat_type; | |
| 35 | typedef typename Sequence::category category; | |
| 36 | typedef result_of::equal_to<first_type, last_type> equal_to; | |
| 37 | ||
| 38 | typedef typename | |
| 39 | mpl::if_< | |
| 40 | equal_to | |
| 41 | , concat_type | |
| 42 | , joint_view_iterator<category, first_type, last_type, concat_type> | |
| 43 | >::type | |
| 44 | type; | |
| 45 | ||
| 46 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 47 | static type | |
| 48 | call(Sequence& s, mpl::true_) | |
| 49 | { | |
| 50 | return s.concat(); | |
| 51 | } | |
| 52 | ||
| 53 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 54 | static type | |
| 55 | call(Sequence& s, mpl::false_) | |
| 56 | { | |
| 57 | return type(s.first(), s.concat()); | |
| 58 | } | |
| 59 | ||
| 60 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 61 | static type | |
| 62 | call(Sequence& s) | |
| 63 | { | |
| 64 | return call(s, equal_to()); | |
| 65 | } | |
| 66 | }; | |
| 67 | }; | |
| 68 | } | |
| 69 | }} | |
| 70 | ||
| 71 | #endif |