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#ifndef BOOST_STATECHART_EVENT_HPP_INCLUDED
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#define BOOST_STATECHART_EVENT_HPP_INCLUDED
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//////////////////////////////////////////////////////////////////////////////
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// Copyright 2002-2006 Andreas Huber Doenni
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// Distributed under the Boost Software License, Version 1.0. (See accompany-
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// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//////////////////////////////////////////////////////////////////////////////
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#include <boost/statechart/event_base.hpp>
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#include <boost/statechart/detail/rtti_policy.hpp>
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#include <boost/statechart/detail/memory.hpp>
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#include <boost/cast.hpp> // boost::polymorphic_downcast
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#include <memory> // std::allocator
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namespace boost
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{
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namespace statechart
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{
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//////////////////////////////////////////////////////////////////////////////
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template< class MostDerived, class Allocator = std::allocator< void > >
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class event : public detail::rtti_policy::rtti_derived_type<
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MostDerived, event_base >
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{
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public:
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//////////////////////////////////////////////////////////////////////////
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// Compiler-generated copy constructor and copy assignment operator are
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// fine
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void * operator new( std::size_t size )
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{
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return detail::allocate< MostDerived, Allocator >( size );
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}
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void operator delete( void * pEvent )
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{
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detail::deallocate< MostDerived, Allocator >( pEvent );
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}
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protected:
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//////////////////////////////////////////////////////////////////////////
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event() {}
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virtual ~event() {}
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private:
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//////////////////////////////////////////////////////////////////////////
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virtual intrusive_ptr< const event_base > clone() const
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{
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return intrusive_ptr< const event_base >( new MostDerived(
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*polymorphic_downcast< const MostDerived * >( this ) ) );
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}
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};
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} // namespace statechart
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} // namespace boost
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#endif
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