35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
/*=============================================================================
|
|
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_VALUE_AT_IMPL_HPP
|
|
#define BOOST_FUSION_VIEW_REVERSE_VIEW_DETAIL_VALUE_AT_IMPL_HPP
|
|
|
|
#include <boost/fusion/support/config.hpp>
|
|
#include <boost/fusion/sequence/intrinsic/value_at.hpp>
|
|
#include <boost/mpl/minus.hpp>
|
|
#include <boost/mpl/int.hpp>
|
|
|
|
namespace boost { namespace fusion { namespace extension
|
|
{
|
|
template <typename>
|
|
struct value_at_impl;
|
|
|
|
template <>
|
|
struct value_at_impl<reverse_view_tag>
|
|
{
|
|
template <typename Seq, typename N>
|
|
struct apply
|
|
: result_of::value_at<
|
|
typename Seq::seq_type
|
|
, mpl::minus<typename Seq::size, mpl::int_<1>, N>
|
|
>
|
|
{};
|
|
};
|
|
}}}
|
|
|
|
#endif
|