Swiftdiff options
| 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/spirit/home/phoenix/core/nothing.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/spirit/home/phoenix/core/nothing.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/spirit/home/phoenix/core/nothing.hpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/spirit/home/phoenix/core/nothing.hpp b/3rdParty/Boost/src/boost/spirit/home/phoenix/core/nothing.hpp new file mode 100644 index 0000000..029fbbf --- /dev/null +++ b/3rdParty/Boost/src/boost/spirit/home/phoenix/core/nothing.hpp @@ -0,0 +1,42 @@ +/*============================================================================= + Copyright (c) 2001-2007 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) +==============================================================================*/ +#ifndef PHOENIX_CORE_NOTHING_HPP +#define PHOENIX_CORE_NOTHING_HPP + +#include <boost/spirit/home/phoenix/core/actor.hpp> +#include <boost/mpl/bool.hpp> + +namespace boost { namespace phoenix +{ +/////////////////////////////////////////////////////////////////////////////// +// +// null_actor +// +// A actor that does nothing (a "bum", if you will :-). +// +/////////////////////////////////////////////////////////////////////////////// + struct null_actor + { + typedef mpl::false_ no_nullary; + + template <typename Env> + struct result + { + typedef void type; + }; + + template <typename Env> + void + eval(Env const&) const + { + } + }; + + actor<null_actor> const nothing = null_actor(); +}} + +#endif |