/*=============================================================================
|
Copyright (c) 2001-2011 Joel de Guzman
|
|
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(FUSION_DEREF_IMPL_07202005_0851)
|
#define FUSION_DEREF_IMPL_07202005_0851
|
|
#include <boost/fusion/support/config.hpp>
|
#include <boost/fusion/iterator/deref.hpp>
|
#include <boost/fusion/iterator/prior.hpp>
|
|
namespace boost { namespace fusion
|
{
|
struct reverse_view_iterator_tag;
|
|
namespace extension
|
{
|
template <typename Tag>
|
struct deref_impl;
|
|
template <>
|
struct deref_impl<reverse_view_iterator_tag>
|
{
|
template <typename Iterator>
|
struct apply
|
{
|
typedef typename
|
result_of::deref<
|
typename result_of::prior<
|
typename Iterator::first_type
|
>::type
|
>::type
|
type;
|
|
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
|
static type
|
call(Iterator const& i)
|
{
|
return *fusion::prior(i.first);
|
}
|
};
|
};
|
}
|
}}
|
|
#endif
|
