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56 lines
1.5 KiB
56 lines
1.5 KiB
3 years ago
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/*=============================================================================
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Copyright (c) 2006 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(FUSION_IS_SEGMENTED_03202006_0015)
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#define FUSION_IS_SEGMENTED_03202006_0015
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#include <boost/fusion/support/config.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/fusion/support/tag_of.hpp>
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namespace boost { namespace fusion
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{
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// Special tags:
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struct sequence_facade_tag;
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struct iterator_range_tag;
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namespace extension
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{
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template <typename Tag>
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struct is_segmented_impl
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{
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template <typename Sequence>
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struct apply
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: mpl::false_
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{};
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};
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template <>
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struct is_segmented_impl<sequence_facade_tag>
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{
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template <typename Sequence>
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struct apply : Sequence::is_segmented {};
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};
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template <>
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struct is_segmented_impl<iterator_range_tag>;
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}
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namespace traits
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{
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template <typename Sequence>
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struct is_segmented
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: mpl::bool_<
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(bool)extension::is_segmented_impl<typename traits::tag_of<Sequence>::type>::
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template apply<Sequence>::type::value
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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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