Added boost header

test/external/boost/msm/front/euml/phoenix_placeholders.hpp

@@ -0,0 +1,26 @@
+// Copyright 2011 Christophe Henry
+// henry UNDERSCORE christophe AT hotmail DOT com
+// This is an extended version of the state machine available in the boost::mpl library
+// Distributed under the same license as the original.
+// Copyright for the original version:
+// Copyright 2005 David Abrahams and Aleksey Gurtovoy. 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_MSM_FRONT_EUML_PHOENIX_PLACEHOLDERS_H
+#define BOOST_MSM_FRONT_EUML_PHOENIX_PLACEHOLDERS_H
+
+#include <boost/phoenix/core/argument.hpp>
+// provide some meaningful placeholders (instead of arg1...arg4)
+namespace boost { namespace msm { namespace front { namespace euml
+{
+    boost::phoenix::expression::argument<1>::type const _event = {};
+    boost::phoenix::expression::argument<2>::type const _fsm = {};
+    boost::phoenix::expression::argument<3>::type const _source = {};
+    boost::phoenix::expression::argument<4>::type const _target = {};
+    // this is for state actions
+    boost::phoenix::expression::argument<3>::type const _state = {};
+}}}}
+
+#endif //BOOST_MSM_FRONT_EUML_PHOENIX_PLACEHOLDERS_H