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author | Vlad Voicu <vladv@rosedu.org> | 2012-03-02 10:01:11 (GMT) |
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committer | vlad <vlad@tyrion.(none)> | 2012-10-13 13:55:44 (GMT) |
commit | b21e43357c66df6824536793bf41bbd1cbdf1a72 (patch) | |
tree | a23ee2adda43c27aa1b720f524e368991264182c /3rdParty/Boost/src/boost/spirit/home/phoenix/core/nothing.hpp | |
parent | 58efe2c43e54a3d868784a6968e52674309e2310 (diff) | |
download | swift-contrib-b21e43357c66df6824536793bf41bbd1cbdf1a72.zip swift-contrib-b21e43357c66df6824536793bf41bbd1cbdf1a72.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 |