forked from boostorg/fusion
2114bfca6c
Note 1: Forwarding functions are specified as a C++14 constexpr since std::forward is not a constexpr within C++11. Note 2: Though I'm not sure why it doesn't compile, some declarations are specified as a C++14 constexpr or non-constexpr. Note 3: Boost.Tuple adaptation and TR1-based tuple implementations are not constexpr.
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 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(FUSION_CONVERT_09232005_1340)
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#define FUSION_CONVERT_09232005_1340
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/container/map/detail/cpp03/as_map.hpp>
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#include <boost/fusion/container/map/detail/cpp03/convert_impl.hpp>
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#include <boost/fusion/container/map/detail/cpp03/map.hpp>
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#include <boost/fusion/sequence/intrinsic/begin.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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namespace boost { namespace fusion
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{
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namespace result_of
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{
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template <typename Sequence>
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struct as_map
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{
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typedef typename
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detail::as_map<
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result_of::size<Sequence>::value
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, is_base_of<
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associative_tag
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, typename traits::category_of<Sequence>::type>::value
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>
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gen;
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typedef typename gen::
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template apply<typename result_of::begin<Sequence>::type>::type
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type;
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};
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}
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template <typename Sequence>
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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inline typename result_of::as_map<Sequence>::type
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as_map(Sequence& seq)
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{
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typedef typename result_of::as_map<Sequence>::gen gen;
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return gen::call(fusion::begin(seq));
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}
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template <typename Sequence>
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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inline typename result_of::as_map<Sequence const>::type
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as_map(Sequence const& seq)
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{
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typedef typename result_of::as_map<Sequence const>::gen gen;
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return gen::call(fusion::begin(seq));
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}
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}}
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#endif
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