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- /*=============================================================================
- Copyright (c) 2005-2013 Joel de Guzman
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- ==============================================================================*/
- #if !defined(BOOST_FUSION_BUILD_MAP_02042013_1448)
- #define BOOST_FUSION_BUILD_MAP_02042013_1448
- #include <boost/fusion/support/config.hpp>
- #include <boost/fusion/iterator/equal_to.hpp>
- #include <boost/fusion/iterator/next.hpp>
- #include <boost/fusion/iterator/value_of.hpp>
- #include <boost/fusion/iterator/deref.hpp>
- #include <boost/fusion/sequence/intrinsic/begin.hpp>
- #include <boost/fusion/sequence/intrinsic/end.hpp>
- #include <boost/fusion/container/map/map.hpp>
- #include <boost/fusion/algorithm/transformation/push_front.hpp>
- namespace boost { namespace fusion { namespace detail
- {
- template <typename First, typename Last, bool is_assoc
- , bool is_empty = result_of::equal_to<First, Last>::value
- >
- struct build_map;
- template <typename First, typename Last, bool is_assoc>
- struct build_map<First, Last, is_assoc, true>
- {
- typedef map<> type;
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- static type
- call(First const&, Last const&)
- {
- return type();
- }
- };
- template <typename T, typename Rest>
- struct push_front_map;
- template <typename T, typename ...Rest>
- struct push_front_map<T, map<Rest...>>
- {
- typedef map<T, Rest...> type;
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- static type
- call(T const& first, map<Rest...> const& rest)
- {
- return type(push_front(rest, first));
- }
- };
- template <typename First, typename Last, bool is_assoc>
- struct build_map<First, Last, is_assoc, false>
- {
- typedef
- build_map<typename result_of::next<First>::type, Last, is_assoc>
- next_build_map;
- typedef push_front_map<
- typename pair_from<First, is_assoc>::type
- , typename next_build_map::type>
- push_front;
- typedef typename push_front::type type;
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- static type
- call(First const& f, Last const& l)
- {
- return push_front::call(
- pair_from<First, is_assoc>::call(f)
- , next_build_map::call(fusion::next(f), l));
- }
- };
- }}}
- #endif
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