Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2009 Christopher Schmidt
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: 
Chris@16: #ifndef BOOST_FUSION_CONTAINER_SET_DETAIL_DEREF_IMPL_HPP
Chris@16: #define BOOST_FUSION_CONTAINER_SET_DETAIL_DEREF_IMPL_HPP
Chris@16: 
Chris@101: #include <boost/fusion/support/config.hpp>
Chris@16: #include <boost/fusion/sequence/intrinsic/at.hpp>
Chris@16: #include <boost/type_traits/is_const.hpp>
Chris@16: 
Chris@16: namespace boost { namespace fusion { namespace extension
Chris@16: {
Chris@16:     template <typename>
Chris@16:     struct deref_impl;
Chris@16: 
Chris@16:     template <>
Chris@16:     struct deref_impl<set_iterator_tag>
Chris@16:     {
Chris@16:         template <typename It>
Chris@16:         struct apply
Chris@16:         {
Chris@16:             typedef typename
Chris@16:                 result_of::at<
Chris@16:                     typename mpl::if_<
Chris@16:                         is_const<typename It::seq_type>
Chris@16:                       , typename It::seq_type::storage_type const
Chris@16:                       , typename It::seq_type::storage_type
Chris@16:                     >::type
Chris@16:                   , typename It::index
Chris@16:                 >::type
Chris@16:             type;
Chris@16: 
Chris@101:             BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:             static type
Chris@16:             call(It const& it)
Chris@16:             {
Chris@16:                 return ::boost::fusion::at<typename It::index>(it.seq->get_data());
Chris@16:             }
Chris@16:         };
Chris@16:     };
Chris@16: }}}
Chris@16: 
Chris@16: #endif