Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2011 Joel de Guzman
Chris@16:     Copyright (c) 2011 Eric Niebler
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying 
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: #if !defined(FUSION_FIND_05052005_1107)
Chris@16: #define FUSION_FIND_05052005_1107
Chris@16: 
Chris@101: #include <boost/fusion/support/config.hpp>
Chris@16: #include <boost/fusion/algorithm/query/find_if_fwd.hpp>
Chris@16: #include <boost/fusion/algorithm/query/detail/find_if.hpp>
Chris@16: #include <boost/fusion/algorithm/query/detail/segmented_find.hpp>
Chris@16: #include <boost/fusion/iterator/key_of.hpp>
Chris@16: #include <boost/fusion/iterator/value_of.hpp>
Chris@16: #include <boost/fusion/support/category_of.hpp>
Chris@16: #include <boost/fusion/support/is_segmented.hpp>
Chris@16: #include <boost/mpl/if.hpp>
Chris@16: #include <boost/mpl/placeholders.hpp>
Chris@16: #include <boost/type_traits/is_same.hpp>
Chris@16: #include <boost/type_traits/is_const.hpp>
Chris@16: #include <boost/utility/enable_if.hpp>
Chris@16: 
Chris@16: namespace boost { namespace fusion
Chris@16: {
Chris@16:     namespace result_of
Chris@16:     {
Chris@16:         template <typename Sequence, typename T>
Chris@16:         struct find
Chris@16:           : mpl::if_<
Chris@16:                 traits::is_segmented<Sequence>
Chris@16:               , detail::result_of_segmented_find<Sequence, T>
Chris@16:               , detail::result_of_find_if<
Chris@16:                     Sequence,
Chris@16:                     is_same<
Chris@16:                         typename mpl::if_<
Chris@16:                             traits::is_associative<Sequence>
Chris@16:                           , key_of<mpl::_1>
Chris@16:                           , value_of<mpl::_1>
Chris@16:                         >::type
Chris@16:                       , T
Chris@16:                     >
Chris@16:                 >
Chris@16:             >::type
Chris@16:         {};
Chris@16:     }
Chris@16: 
Chris@16:     template <typename T, typename Sequence>
Chris@101:     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@101:     inline typename
Chris@16:         lazy_disable_if<
Chris@16:             is_const<Sequence>
Chris@16:           , result_of::find<Sequence, T>
Chris@16:         >::type const
Chris@16:     find(Sequence& seq)
Chris@16:     {
Chris@16:         typedef typename result_of::find<Sequence, T>::filter filter;
Chris@16:         return filter::call(seq);
Chris@16:     }
Chris@16: 
Chris@16:     template <typename T, typename Sequence>
Chris@101:     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:     inline typename result_of::find<Sequence const, T>::type const
Chris@16:     find(Sequence const& seq)
Chris@16:     {
Chris@16:         typedef typename result_of::find<Sequence const, T>::filter filter;
Chris@16:         return filter::call(seq);
Chris@16:     }
Chris@16: }}
Chris@16: 
Chris@16: #endif