projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2011 Joel de Guzman | |
| 3 | Copyright (c) 2006 Dan Marsden | |
| 4 | ||
| 5 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | ==============================================================================*/ | |
| 8 | #if !defined(FUSION_ADVANCE_IMPL_20061024_2021) | |
| 9 | #define FUSION_ADVANCE_IMPL_20061024_2021 | |
| 10 | ||
| 11 | #include <boost/fusion/support/config.hpp> | |
| 12 | #include <boost/fusion/view/zip_view/zip_view_iterator_fwd.hpp> | |
| 13 | #include <boost/fusion/iterator/advance.hpp> | |
| 14 | #include <boost/fusion/algorithm/transformation/transform.hpp> | |
| 15 | #include <boost/type_traits/remove_reference.hpp> | |
| 16 | ||
| 17 | namespace boost { namespace fusion { | |
| 18 | ||
| 19 | struct zip_view_iterator_tag; | |
| 20 | ||
| 21 | namespace detail | |
| 22 | { | |
| 23 | template<typename N> | |
| 24 | struct poly_advance | |
| 25 | { | |
| 26 | template<typename Sig> | |
| 27 | struct result; | |
| 28 | ||
| 29 | template<typename N1, typename It> | |
| 30 | struct result<poly_advance<N1>(It)> | |
| 31 | { | |
| 32 | typedef typename remove_reference<It>::type it; | |
| 33 | typedef typename result_of::advance<it,N>::type type; | |
| 34 | }; | |
| 35 | ||
| 36 | template<typename It> | |
| 37 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 38 | typename result<poly_advance(It)>::type | |
| 39 | operator()(const It& it) const | |
| 40 | { | |
| 41 | return fusion::advance<N>(it); | |
| 42 | } | |
| 43 | }; | |
| 44 | } | |
| 45 | ||
| 46 | namespace extension | |
| 47 | { | |
| 48 | template<typename Tag> | |
| 49 | struct advance_impl; | |
| 50 | ||
| 51 | template<> | |
| 52 | struct advance_impl<zip_view_iterator_tag> | |
| 53 | { | |
| 54 | template<typename It, typename N> | |
| 55 | struct apply | |
| 56 | { | |
| 57 | typedef zip_view_iterator< | |
| 58 | typename result_of::transform<typename It::iterators, detail::poly_advance<N> >::type> type; | |
| 59 | ||
| 60 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 61 | static type | |
| 62 | call(It const& it) | |
| 63 | { | |
| 64 | return type( | |
| 65 | fusion::transform(it.iterators_, detail::poly_advance<N>())); | |
| 66 | } | |
| 67 | }; | |
| 68 | }; | |
| 69 | } | |
| 70 | }} | |
| 71 | ||
| 72 | #endif |