iterator/detail/adapt_deref_traits.hpp

0001 /*=============================================================================
0002     Copyright (c) 2001-2011 Joel de Guzman
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007 #if !defined(FUSION_ADAPT_DEREF_TRAITS_05062005_0900)
0008 #define FUSION_ADAPT_DEREF_TRAITS_05062005_0900
0009
0010 #include <boost/fusion/support/config.hpp>
0011 #include <boost/fusion/iterator/deref.hpp>
0012
0013 namespace boost { namespace fusion { namespace detail
0014 {
0015     struct adapt_deref_traits
0016     {
0017         template <typename Iterator>
0018         struct apply
0019         {
0020             typedef typename
0021                 result_of::deref<typename Iterator::first_type>::type
0022             type;
0023
0024             BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
0025             static type
0026             call(Iterator const& i)
0027             {
0028                 return *i.first;
0029             }
0030         };
0031     };
0032 }}}
0033
0034 #endif
0035
0036