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