projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2012-2014 Kohei Takahashi | |
| 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_BUILD_CONS_10172012_0130) | |
| 8 | #define BOOST_FUSION_BUILD_CONS_10172012_0130 | |
| 9 | ||
| 10 | #include <boost/tuple/tuple.hpp> | |
| 11 | #include <boost/fusion/iterator/equal_to.hpp> | |
| 12 | #include <boost/fusion/iterator/next.hpp> | |
| 13 | #include <boost/fusion/iterator/value_of.hpp> | |
| 14 | #include <boost/fusion/iterator/deref.hpp> | |
| 15 | ||
| 16 | namespace boost { namespace fusion { namespace detail | |
| 17 | { | |
| 18 | template < | |
| 19 | typename First | |
| 20 | , typename Last | |
| 21 | , bool is_empty = result_of::equal_to<First, Last>::value> | |
| 22 | struct build_tuple_cons; | |
| 23 | ||
| 24 | template <typename First, typename Last> | |
| 25 | struct build_tuple_cons<First, Last, true> | |
| 26 | { | |
| 27 | typedef boost::tuples::null_type type; | |
| 28 | ||
| 29 | BOOST_FUSION_GPU_ENABLED | |
| 30 | static type | |
| 31 | call(First const&, Last const&) | |
| 32 | { | |
| 33 | return type(); | |
| 34 | } | |
| 35 | }; | |
| 36 | ||
| 37 | template <typename First, typename Last> | |
| 38 | struct build_tuple_cons<First, Last, false> | |
| 39 | { | |
| 40 | typedef | |
| 41 | build_tuple_cons<typename result_of::next<First>::type, Last> | |
| 42 | next_build_tuple_cons; | |
| 43 | ||
| 44 | typedef boost::tuples::cons< | |
| 45 | typename result_of::value_of<First>::type | |
| 46 | , typename next_build_tuple_cons::type> | |
| 47 | type; | |
| 48 | ||
| 49 | BOOST_FUSION_GPU_ENABLED | |
| 50 | static type | |
| 51 | call(First const& f, Last const& l) | |
| 52 | { | |
| 53 | typename result_of::value_of<First>::type v = *f; | |
| 54 | return type(v, next_build_tuple_cons::call(fusion::next(f), l)); | |
| 55 | } | |
| 56 | }; | |
| 57 | }}} | |
| 58 | ||
| 59 | #endif |