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69 lines
2.1 KiB
69 lines
2.1 KiB
/*=============================================================================
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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_SEGMENTED_END_IMPL_HPP_INCLUDED)
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#define BOOST_FUSION_SEGMENTED_END_IMPL_HPP_INCLUDED
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#include <boost/fusion/support/config.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/type_traits/add_const.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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#include <boost/fusion/sequence/intrinsic_fwd.hpp>
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#include <boost/fusion/container/list/cons_fwd.hpp>
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#include <boost/fusion/support/is_segmented.hpp>
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namespace boost { namespace fusion
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{
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template <typename First, typename Last>
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struct iterator_range;
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}}
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namespace boost { namespace fusion { namespace detail
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{
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//auto segmented_end_impl( seq, stack )
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//{
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// assert(is_segmented(seq));
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// auto it = end(segments(seq));
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// return cons(iterator_range(it, it), stack);
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//}
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template <typename Sequence, typename Stack>
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struct segmented_end_impl
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{
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BOOST_MPL_ASSERT((traits::is_segmented<Sequence>));
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typedef
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typename result_of::end<
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typename remove_reference<
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typename add_const<
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typename result_of::segments<Sequence>::type
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>::type
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>::type
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>::type
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end_type;
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typedef iterator_range<end_type, end_type> pair_type;
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typedef cons<pair_type, Stack> type;
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static pair_type make_pair(end_type end)
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{
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return pair_type(end, end);
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}
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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static type call(Sequence & seq, Stack stack)
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{
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return type(
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make_pair(fusion::end(fusion::segments(seq))),
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stack);
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}
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};
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}}}
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#endif
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