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| author | Vlad Voicu <vladv@rosedu.org> | 2012-03-02 10:01:11 (GMT) |
|---|---|---|
| committer | Kevin Smith <git@kismith.co.uk> | 2012-03-09 15:04:05 (GMT) |
| commit | 1c8cd160b79b6bbcec72042bdb104ba530508a93 (patch) | |
| tree | cff302b81e74c557fbc9e30fd43144d981b613d0 /3rdParty/Boost/src/boost/proto/functional/fusion/reverse.hpp | |
| parent | 2944711aefec9a9dd66052440bc4f921910dd780 (diff) | |
| download | swift-contrib-1c8cd160b79b6bbcec72042bdb104ba530508a93.zip swift-contrib-1c8cd160b79b6bbcec72042bdb104ba530508a93.tar.bz2 | |
Added spirit to bundled boost
Diffstat (limited to '3rdParty/Boost/src/boost/proto/functional/fusion/reverse.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/proto/functional/fusion/reverse.hpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/functional/fusion/reverse.hpp b/3rdParty/Boost/src/boost/proto/functional/fusion/reverse.hpp new file mode 100644 index 0000000..3ed154b --- /dev/null +++ b/3rdParty/Boost/src/boost/proto/functional/fusion/reverse.hpp @@ -0,0 +1,60 @@ +/////////////////////////////////////////////////////////////////////////////// +/// \file reverse.hpp +/// Proto callables Fusion reverse +// +// Copyright 2010 Eric Niebler. 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) + +#ifndef BOOST_PROTO_FUNCTIONAL_FUSION_REVERSE_HPP_EAN_11_27_2010 +#define BOOST_PROTO_FUNCTIONAL_FUSION_REVERSE_HPP_EAN_11_27_2010 + +#include <boost/fusion/include/reverse.hpp> +#include <boost/proto/proto_fwd.hpp> + +namespace boost { namespace proto { namespace functional +{ + /// \brief A PolymorphicFunctionObject type that invokes the + /// \c fusion::reverse() algorithm on its argument. + /// + /// A PolymorphicFunctionObject type that invokes the + /// \c fusion::reverse() algorithm on its argument. This is + /// useful for defining a CallableTransform like \c reverse(_) + /// which reverses the order of the children of a Proto + /// expression node. + struct reverse + { + BOOST_PROTO_CALLABLE() + + template<typename Sig> + struct result; + + template<typename This, typename Seq> + struct result<This(Seq)> + : result<This(Seq const &)> + {}; + + template<typename This, typename Seq> + struct result<This(Seq &)> + : fusion::result_of::reverse<Seq> + {}; + + template<typename Seq> + typename fusion::result_of::reverse<Seq>::type + operator ()(Seq &seq) const + { + // Work around a const-correctness issue in Fusion + typedef typename fusion::result_of::reverse<Seq>::type result_type; + return result_type(seq); + } + + template<typename Seq> + typename fusion::result_of::reverse<Seq const>::type + operator ()(Seq const &seq) const + { + return fusion::reverse(seq); + } + }; +}}} + +#endif |