msm/front/completion_event.hpp

0001 // Copyright 2008 Christophe Henry
0002 // henry UNDERSCORE christophe AT hotmail DOT com
0003 // This is an extended version of the state machine available in the boost::mpl library
0004 // Distributed under the same license as the original.
0005 // Copyright for the original version:
0006 // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
0007 // under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010
0011 #ifndef BOOST_MSM_FRONT_COMMON_COMPLETION_EVENT_H
0012 #define BOOST_MSM_FRONT_COMMON_COMPLETION_EVENT_H
0013
0014 namespace boost { namespace msm { namespace front
0015 {
0016
0017     struct none
0018     {
0019         // make every event convertible to none.
0020         // to support standard-conform implementation of pseudo exits.
0021         none(){}
0022         template <class Event>
0023         none(Event const&){}
0024
0025         typedef int completion_event;
0026     };
0027
0028 }}}
0029
0030 #endif //BOOST_MSM_FRONT_COMMON_COMPLETION_EVENT_H
0031