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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
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