forked from boostorg/mpl
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
//-----------------------------------------------------------------------------
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// boost fsm/transition.hpp header file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2002
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// Aleksey Gurtovoy
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//
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// Permission to use, copy, modify, distribute and sell this software
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// and its documentation for any purpose is hereby granted without fee,
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// provided that the above copyright notice appears in all copies and
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// that both the copyright notice and this permission notice appear in
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// supporting documentation. No representations are made about the
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// suitability of this software for any purpose. It is provided "as is"
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// without express or implied warranty.
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#ifndef BOOST_FSM_TRANSITION_INCLUDED
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#define BOOST_FSM_TRANSITION_INCLUDED
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#include <cassert>
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namespace fsm {
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namespace aux {
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// represent a signle transition between states |From| and |To|
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template<
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typename T
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, typename From
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, typename Event
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, typename To
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, bool (T::* transition_func)(Event const&)
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>
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struct transition
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{
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typedef T fsm_t;
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typedef From from_state_t;
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typedef Event event_t;
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typedef To to_state_t;
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typedef typename Event::base_t base_event_t;
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static bool do_transition(T& x, base_event_t const& e)
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{
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assert(dynamic_cast<event_t const*>(&e) == &e);
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return (x.*transition_func)(static_cast<event_t const &>(e));
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}
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};
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} // namespace aux
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} // namespace fsm
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#endif // BOOST_FSM_TRANSITION_INCLUDED
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