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prelude to iterator_facade and sequence_facade

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[SVN r35316]
This commit is contained in:
Joel de Guzman
2006-09-25 08:37:16 +00:00
parent a37b435ce6
commit 654fd0918e
33 changed files with 160 additions and 128 deletions
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10
include/boost/fusion/sequence/intrinsic/empty.hpp
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@ -14,7 +14,8 @@
namespace boost { namespace fusion
{
struct fusion_sequence_tag;
// Special tags:
struct sequence_facade_tag;
struct mpl_sequence_tag; // mpl sequence tag
namespace extension
@ -28,6 +29,13 @@ namespace boost { namespace fusion
{};
};
template <>
struct empty_impl<sequence_facade_tag>
{
template <typename Sequence>
struct apply : Sequence::template empty<Sequence> {};
};
template <>
struct empty_impl<mpl_sequence_tag>;
}