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/*=============================================================================
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_DEREF_IMPL_SEP_24_2009_0818AM)
#define BOOST_FUSION_NVIEW_DEREF_IMPL_SEP_24_2009_0818AM
#include <boost/fusion/support/config.hpp>
#include <boost/fusion/iterator/deref.hpp>
#include <boost/fusion/container/vector.hpp>
namespace boost { namespace fusion
{
struct nview_iterator_tag;
namespace extension
{
template<typename Tag>
struct deref_impl;
template<>
struct deref_impl<nview_iterator_tag>
{
template<typename Iterator>
struct apply
{
typedef typename Iterator::first_type first_type;
typedef typename Iterator::sequence_type sequence_type;
typedef typename result_of::deref<first_type>::type index;
typedef typename result_of::at<
typename sequence_type::sequence_type, index>::type type;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static type call(Iterator const& i)
{
return at<index>(i.seq.seq);
}
};
};
}
}}
#endif
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