/*============================================================================= Copyright (c) 2009 Christopher Schmidt 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) ==============================================================================*/ #ifndef BOOST_FUSION_VIEW_REVERSE_VIEW_DETAIL_AT_IMPL_HPP #define BOOST_FUSION_VIEW_REVERSE_VIEW_DETAIL_AT_IMPL_HPP #include <boost/fusion/sequence/intrinsic/at.hpp> #include <boost/mpl/minus.hpp> #include <boost/mpl/int.hpp> namespace boost { namespace fusion { namespace extension { template <typename> struct at_impl; template <> struct at_impl<reverse_view_tag> { template <typename Seq, typename N> struct apply { typedef mpl::minus<typename Seq::size, mpl::int_<1>, N> real_n; typedef typename result_of::at<typename Seq::seq_type, real_n>::type type; static type call(Seq& seq) { return fusion::at<real_n>(seq.seq); } }; }; }}} #endif