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/*=============================================================================
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
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