/*============================================================================= Copyright (c) 2001-2011 Joel de Guzman 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_BACK_09162005_0350) #define FUSION_BACK_09162005_0350 #include <boost/fusion/support/config.hpp> #include <boost/fusion/sequence/intrinsic_fwd.hpp> #include <boost/fusion/sequence/intrinsic/end.hpp> #include <boost/fusion/iterator/prior.hpp> #include <boost/fusion/iterator/deref.hpp> #include <boost/mpl/bool.hpp> namespace boost { namespace fusion { struct fusion_sequence_tag; namespace result_of { template <typename Sequence> struct back : result_of::deref<typename result_of::prior<typename result_of::end<Sequence>::type>::type> {}; } template <typename Sequence> BOOST_FUSION_GPU_ENABLED inline typename result_of::back<Sequence>::type back(Sequence& seq) { return *fusion::prior(fusion::end(seq)); } template <typename Sequence> BOOST_FUSION_GPU_ENABLED inline typename result_of::back<Sequence const>::type back(Sequence const& seq) { return *fusion::prior(fusion::end(seq)); } }} #endif