// Copyright 2008 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_EVENT_TRAITS_H #define BOOST_MSM_EVENT_TRAITS_H #include <boost/any.hpp> #include <boost/mpl/bool.hpp> namespace boost { namespace msm { template< typename Event > struct is_kleene_event { // default: no event is a kleene event (kleene: matches any event in a transitions) typedef ::boost::mpl::false_ type; }; // add this way in this namespace specializations for events which you want to use as kleene // requirement: a copy-constructor matching the events which will be converted to this kleene template<> struct is_kleene_event< boost::any > { typedef ::boost::mpl::true_ type; }; } } // boost::msm #endif //BOOST_MSM_EVENT_TRAITS_H
