diff options
Diffstat (limited to 'boost/fusion/container/map/convert.hpp')
| -rw-r--r-- | boost/fusion/container/map/convert.hpp | 100 |
1 files changed, 85 insertions, 15 deletions
diff --git a/boost/fusion/container/map/convert.hpp b/boost/fusion/container/map/convert.hpp index 5bb6fc9dde..d106610b7b 100644 --- a/boost/fusion/container/map/convert.hpp +++ b/boost/fusion/container/map/convert.hpp @@ -4,44 +4,114 @@ 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(FUSION_CONVERT_09232005_1340) -#define FUSION_CONVERT_09232005_1340 +#if !defined(FUSION_CONVERT_MAIN_09232005_1340) +#define FUSION_CONVERT_MAIN_09232005_1340 -#include <boost/fusion/container/map/detail/as_map.hpp> -#include <boost/fusion/container/map/detail/convert_impl.hpp> +#include <boost/fusion/support/config.hpp> #include <boost/fusion/container/map/map.hpp> -#include <boost/fusion/sequence/intrinsic/begin.hpp> -#include <boost/fusion/sequence/intrinsic/size.hpp> + +namespace boost { namespace fusion { namespace detail +{ + template <typename It, bool is_assoc> + struct pair_from + { + typedef typename result_of::value_of<It>::type type; + + BOOST_FUSION_GPU_ENABLED + static inline type call(It const& it) + { + return *it; + } + }; + + template <typename It> + struct pair_from<It, true> + { + typedef typename result_of::key_of<It>::type key_type; + typedef typename result_of::value_of_data<It>::type data_type; + typedef typename fusion::pair<key_type, data_type> type; + + BOOST_FUSION_GPU_ENABLED + static inline type call(It const& it) + { + return type(deref_data(it)); + } + }; +}}} + +/////////////////////////////////////////////////////////////////////////////// +// Without variadics, we will use the PP version +/////////////////////////////////////////////////////////////////////////////// +#if !defined(BOOST_FUSION_HAS_VARIADIC_MAP) +# include <boost/fusion/container/map/detail/cpp03/convert.hpp> + +#else +/////////////////////////////////////////////////////////////////////////////// +// C++11 variadic implementation +/////////////////////////////////////////////////////////////////////////////// +#include <boost/fusion/container/map/detail/build_map.hpp> namespace boost { namespace fusion { namespace result_of { template <typename Sequence> - struct as_map + struct as_map : + detail::build_map< + typename result_of::begin<Sequence>::type + , typename result_of::end<Sequence>::type + , is_base_of< + associative_tag + , typename traits::category_of<Sequence>::type>::value + > { - typedef typename detail::as_map<result_of::size<Sequence>::value> gen; - typedef typename gen:: - template apply<typename result_of::begin<Sequence>::type>::type - type; }; } template <typename Sequence> + BOOST_FUSION_GPU_ENABLED inline typename result_of::as_map<Sequence>::type as_map(Sequence& seq) { - typedef typename result_of::as_map<Sequence>::gen gen; - return gen::call(fusion::begin(seq)); + typedef result_of::as_map<Sequence> gen; + return gen::call(fusion::begin(seq), fusion::end(seq)); } template <typename Sequence> + BOOST_FUSION_GPU_ENABLED inline typename result_of::as_map<Sequence const>::type as_map(Sequence const& seq) { - typedef typename result_of::as_map<Sequence const>::gen gen; - return gen::call(fusion::begin(seq)); + typedef result_of::as_map<Sequence const> gen; + return gen::call(fusion::begin(seq), fusion::end(seq)); + } + + namespace extension + { + template <typename T> + struct convert_impl; + + template <> + struct convert_impl<map_tag> + { + template <typename Sequence> + struct apply + { + typedef typename + result_of::as_map<Sequence>::type + type; + + BOOST_FUSION_GPU_ENABLED + static type call(Sequence& seq) + { + typedef result_of::as_map<Sequence> gen; + return gen::call(fusion::begin(seq), fusion::end(seq)); + } + }; + }; } }} #endif +#endif + |