forked from boostorg/fusion
Fusion: merge from trunk
[SVN r67492]
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@ -11,24 +11,27 @@
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#include <boost/mpl/and.hpp>
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#include <boost/mpl/not.hpp>
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#include <boost/mpl/equal_to.hpp>
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#include <boost/fusion/support/sequence_base.hpp>
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#include <boost/fusion/support/is_sequence.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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#include <boost/fusion/support/detail/is_mpl_sequence.hpp>
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#include <boost/type_traits/is_convertible.hpp>
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namespace boost { namespace fusion { namespace detail
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{
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template <typename Sequence>
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struct is_native_fusion_sequence : is_base_of<sequence_root, Sequence> {};
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struct is_native_fusion_sequence
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: is_convertible<Sequence, detail::from_sequence_convertible_type>
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{};
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template <typename Seq1, typename Seq2>
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struct enable_equality
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: mpl::or_<is_native_fusion_sequence<Seq1>, is_native_fusion_sequence<Seq2> >
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: mpl::or_<traits::is_sequence<Seq1>, traits::is_sequence<Seq2> >
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{};
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template <typename Seq1, typename Seq2>
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struct enable_comparison
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: mpl::and_<
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mpl::or_<is_native_fusion_sequence<Seq1>, is_native_fusion_sequence<Seq2> >
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mpl::or_<traits::is_sequence<Seq1>, traits::is_sequence<Seq2> >
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, mpl::equal_to<result_of::size<Seq1>, result_of::size<Seq2> >
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>
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{};
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