1 // Copyright 2008 Christophe Henry
2 // henry UNDERSCORE christophe AT hotmail DOT com
3 // This is an extended version of the state machine available in the boost::mpl library
4 // Distributed under the same license as the original.
5 // Copyright for the original version:
6 // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
7 // under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
11 #ifndef BOOST_MSM_EVENT_TRAITS_H
12 #define BOOST_MSM_EVENT_TRAITS_H
14 #include <boost/any.hpp>
15 #include <boost/mpl/bool.hpp>
17 namespace boost { namespace msm
20 template< typename Event >
21 struct is_kleene_event
23 // default: no event is a kleene event (kleene: matches any event in a transitions)
24 typedef ::boost::mpl::false_ type;
27 // add this way in this namespace specializations for events which you want to use as kleene
28 // requirement: a copy-constructor matching the events which will be converted to this kleene
30 struct is_kleene_event< boost::any >
32 typedef ::boost::mpl::true_ type;
36 #endif //BOOST_MSM_EVENT_TRAITS_H