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/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2011 Eric Niebler
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_SINGLE_VIEW_NEXT_IMPL_05052005_0331)
#define BOOST_FUSION_SINGLE_VIEW_NEXT_IMPL_05052005_0331
#include <boost/fusion/support/config.hpp>
#include <boost/mpl/next.hpp>
#include <boost/static_assert.hpp>
namespace boost { namespace fusion
{
struct single_view_iterator_tag;
template <typename SingleView, typename Pos>
struct single_view_iterator;
namespace extension
{
template <typename Tag>
struct next_impl;
template <>
struct next_impl<single_view_iterator_tag>
{
template <typename Iterator>
struct apply
{
typedef single_view_iterator<
typename Iterator::single_view_type,
typename mpl::next<typename Iterator::position>::type>
type;
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
static type
call(Iterator const& i)
{
// Workaround for ICE on GCC 4.0.0.
// see https://svn.boost.org/trac/boost/ticket/5808
typedef typename type::position position;
BOOST_STATIC_ASSERT((position::value < 2));
return type(i.view);
}
};
};
}
}}
#endif