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authorVlad Voicu <vladv@rosedu.org>2012-03-02 10:01:11 (GMT)
committervlad <vlad@tyrion.(none)>2012-10-13 13:55:44 (GMT)
commitb21e43357c66df6824536793bf41bbd1cbdf1a72 (patch)
treea23ee2adda43c27aa1b720f524e368991264182c /3rdParty/Boost/src/boost/spirit/home/phoenix/core/nothing.hpp
parent58efe2c43e54a3d868784a6968e52674309e2310 (diff)
downloadswift-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.hpp42
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
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+++ 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