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| 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/proto/functional/fusion/pop_back.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/proto/functional/fusion/pop_back.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/proto/functional/fusion/pop_back.hpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/functional/fusion/pop_back.hpp b/3rdParty/Boost/src/boost/proto/functional/fusion/pop_back.hpp new file mode 100644 index 0000000..f3ebeb8 --- /dev/null +++ b/3rdParty/Boost/src/boost/proto/functional/fusion/pop_back.hpp @@ -0,0 +1,60 @@ +/////////////////////////////////////////////////////////////////////////////// +/// \file pop_back.hpp +/// Proto callables Fusion pop_back +// +// 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_POP_BACK_HPP_EAN_11_27_2010 +#define BOOST_PROTO_FUNCTIONAL_FUSION_POP_BACK_HPP_EAN_11_27_2010 + +#include <boost/fusion/include/begin.hpp> +#include <boost/fusion/include/end.hpp> +#include <boost/fusion/include/prior.hpp> +#include <boost/fusion/include/pop_back.hpp> +#include <boost/proto/proto_fwd.hpp> + +namespace boost { namespace proto { namespace functional +{ + /// \brief A PolymorphicFunctionObject type that invokes the + /// \c fusion::pop_back() algorithm on its argument. + /// + /// A PolymorphicFunctionObject type that invokes the + /// \c fusion::pop_back() algorithm on its argument. + struct pop_back + { + 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::pop_back<Seq> + {}; + + template<typename Seq> + typename fusion::result_of::pop_back<Seq>::type + operator ()(Seq &seq) const + { + // Work around a const-correctness issue in Fusion + typedef typename fusion::result_of::pop_back<Seq>::type result_type; + return result_type(fusion::begin(seq), fusion::prior(fusion::end(seq))); + } + + template<typename Seq> + typename fusion::result_of::pop_back<Seq const>::type + operator ()(Seq const &seq) const + { + return fusion::pop_back(seq); + } + }; +}}} + +#endif |