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48 lines
1.4 KiB
48 lines
1.4 KiB
3 years ago
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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_DEREF_IMPL_05052005_0258)
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#define BOOST_FUSION_SINGLE_VIEW_DEREF_IMPL_05052005_0258
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#include <boost/fusion/support/config.hpp>
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#include <boost/mpl/int.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/mpl/equal_to.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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namespace extension
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{
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template <typename Tag>
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struct deref_impl;
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template <>
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struct deref_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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BOOST_MPL_ASSERT((mpl::equal_to<typename Iterator::position, mpl::int_<0> >));
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typedef typename Iterator::value_type 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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return i.view.val;
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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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