Swiftdiff options
| author | Kevin Smith <git@kismith.co.uk> | 2013-01-12 18:41:34 (GMT) |
|---|---|---|
| committer | Swift Review <review@swift.im> | 2013-01-13 10:36:26 (GMT) |
| commit | f3bc816af1b0d61452de973963e453bf3b3f95a2 (patch) | |
| tree | e895f8afa3580e6cff6f5ad2017d45bf147a17c2 /3rdParty/Boost/src/boost/fusion/sequence/intrinsic/empty.hpp | |
| parent | 188fc285c6555eadd3c9d50ab8a94adcade78d89 (diff) | |
| download | swift-f3bc816af1b0d61452de973963e453bf3b3f95a2.zip swift-f3bc816af1b0d61452de973963e453bf3b3f95a2.tar.bz2 | |
Adding in the spirit Boost stuff
Change-Id: I4f127ce61667243b64081b0aa309028d5077045f
Diffstat (limited to '3rdParty/Boost/src/boost/fusion/sequence/intrinsic/empty.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/fusion/sequence/intrinsic/empty.hpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/fusion/sequence/intrinsic/empty.hpp b/3rdParty/Boost/src/boost/fusion/sequence/intrinsic/empty.hpp new file mode 100644 index 0000000..a9928ab --- /dev/null +++ b/3rdParty/Boost/src/boost/fusion/sequence/intrinsic/empty.hpp @@ -0,0 +1,61 @@ +/*============================================================================= + Copyright (c) 2001-2011 Joel de Guzman + + Distributed under the Boost Software License, Version 1.0. (See accompanying + file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +==============================================================================*/ +#if !defined(FUSION_EMPTY_09162005_0335) +#define FUSION_EMPTY_09162005_0335 + +#include <boost/fusion/sequence/intrinsic_fwd.hpp> +#include <boost/fusion/sequence/intrinsic/size.hpp> +#include <boost/mpl/bool.hpp> +#include <boost/fusion/support/tag_of.hpp> + +namespace boost { namespace fusion +{ + // Special tags: + struct sequence_facade_tag; + struct mpl_sequence_tag; // mpl sequence tag + + namespace extension + { + template <typename Tag> + struct empty_impl + { + template <typename Sequence> + struct apply + : mpl::bool_<(result_of::size<Sequence>::value == 0)> + {}; + }; + + template <> + struct empty_impl<sequence_facade_tag> + { + template <typename Sequence> + struct apply : Sequence::template empty<Sequence> {}; + }; + + template <> + struct empty_impl<mpl_sequence_tag>; + } + + namespace result_of + { + template <typename Sequence> + struct empty + : extension::empty_impl<typename detail::tag_of<Sequence>::type>:: + template apply<Sequence> + {}; + } + + template <typename Sequence> + inline typename result_of::empty<Sequence>::type + empty(Sequence const&) + { + typedef typename result_of::empty<Sequence>::type result; + return result(); + } +}} + +#endif |