56 lines
1.7 KiB
Plaintext
56 lines
1.7 KiB
Plaintext
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/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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Copyright (c) 2011 Eric Niebler
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(BOOST_FUSION_SINGLE_VIEW_NEXT_IMPL_05052005_0331)
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#define BOOST_FUSION_SINGLE_VIEW_NEXT_IMPL_05052005_0331
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#include <boost/fusion/support/config.hpp>
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#include <boost/mpl/next.hpp>
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#include <boost/static_assert.hpp>
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namespace boost { namespace fusion
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{
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struct single_view_iterator_tag;
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template <typename SingleView, typename Pos>
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struct single_view_iterator;
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namespace extension
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{
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template <typename Tag>
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struct next_impl;
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template <>
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struct next_impl<single_view_iterator_tag>
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{
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template <typename Iterator>
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struct apply
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{
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typedef single_view_iterator<
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typename Iterator::single_view_type,
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typename mpl::next<typename Iterator::position>::type>
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type;
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static type
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call(Iterator const& i)
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{
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// Workaround for ICE on GCC 4.0.0.
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// see https://svn.boost.org/trac/boost/ticket/5808
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typedef typename type::position position;
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BOOST_STATIC_ASSERT((position::value < 2));
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return type(i.view);
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}
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};
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};
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}
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}}
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#endif
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