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d361e123c6
c27aa31f0 Updated Boost to v1.70.0 including iterator range math numeric crc circular_buffer multi_index intrusive git-subtree-dir: boost git-subtree-split: c27aa31f06ebf1a91b3fa3ae9df9b5efdf14ec9f
74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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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_SEQUENCE_05052005_1002)
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#define FUSION_IS_SEQUENCE_05052005_1002
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#include <boost/fusion/support/config.hpp>
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#include <boost/fusion/support/sequence_base.hpp>
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#include <boost/fusion/support/tag_of.hpp>
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#include <boost/fusion/support/detail/is_native_fusion_sequence.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/mpl/is_sequence.hpp>
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#include <boost/type_traits/is_convertible.hpp>
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namespace boost { namespace fusion
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{
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// Special tags:
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struct non_fusion_tag;
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struct boost_tuple_tag; // boost::tuples::tuple tag
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struct boost_array_tag; // boost::array tag
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struct mpl_sequence_tag; // mpl sequence tag
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struct std_pair_tag; // std::pair tag
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namespace extension
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{
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template <typename T>
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struct is_sequence_impl
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{
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template <typename Sequence>
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struct apply
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: is_convertible<Sequence, fusion::detail::from_sequence_convertible_type>
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{};
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};
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template <>
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struct is_sequence_impl<non_fusion_tag>
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{
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template <typename T>
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struct apply : mpl::false_ {};
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};
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template <>
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struct is_sequence_impl<boost_tuple_tag>;
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template <>
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struct is_sequence_impl<boost_array_tag>;
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template <>
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struct is_sequence_impl<mpl_sequence_tag>;
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template <>
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struct is_sequence_impl<std_pair_tag>;
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}
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namespace traits
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{
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template <typename T>
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struct is_sequence
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: mpl::bool_<
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(bool)extension::is_sequence_impl<
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typename fusion::detail::tag_of<T>::type
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>::template apply<T>::type::value
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>
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{};
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using detail::is_native_fusion_sequence;
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}
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}}
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#endif
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