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better operator handling

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[SVN r36126]
This commit is contained in:
Joel de Guzman
2006-11-21 02:01:13 +00:00
parent 1b7f4a1a47
commit 4f14542256
9 changed files with 182 additions and 83 deletions
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10
include/boost/fusion/sequence/comparison/detail/enable_comparison.hpp
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@ -18,16 +18,20 @@
namespace boost { namespace fusion { namespace detail
{
template <typename Sequence>
struct is_native_fusion_sequence : is_base_of<sequence_root, Sequence> {};
template <typename Seq1, typename Seq2>
struct enable_equality
: mpl::or_<fusion::traits::is_sequence<Seq1>, fusion::traits::is_sequence<Seq2> >
: mpl::or_<is_native_fusion_sequence<Seq1>, is_native_fusion_sequence<Seq2> >
{};
template <typename Seq1, typename Seq2>
struct enable_comparison
: mpl::and_<
mpl::or_<fusion::traits::is_sequence<Seq1>, fusion::traits::is_sequence<Seq2> >,
mpl::equal_to<result_of::size<Seq1>, result_of::size<Seq2> > >
mpl::or_<is_native_fusion_sequence<Seq1>, is_native_fusion_sequence<Seq2> >
, mpl::equal_to<result_of::size<Seq1>, result_of::size<Seq2> >
>
{};
}}}