/*============================================================================= | |
Copyright (c) 2009 Hartmut Kaiser | |
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(BOOST_FUSION_NVIEW_VALUE_AT_IMPL_SEP_24_2009_0234PM) | |
#define BOOST_FUSION_NVIEW_VALUE_AT_IMPL_SEP_24_2009_0234PM | |
#include <boost/fusion/sequence/intrinsic/value_at.hpp> | |
namespace boost { namespace fusion | |
{ | |
struct nview_tag; | |
namespace extension | |
{ | |
template<typename Tag> | |
struct value_at_impl; | |
template<> | |
struct value_at_impl<nview_tag> | |
{ | |
template<typename Sequence, typename N> | |
struct apply | |
{ | |
typedef typename Sequence::sequence_type sequence_type; | |
typedef typename Sequence::index_type index_type; | |
typedef typename result_of::at<index_type, N>::type index; | |
typedef typename result_of::at<sequence_type, index>::type type; | |
}; | |
}; | |
} | |
}} | |
#endif |