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#ifndef BOOST_STATECHART_EVENT_HPP_INCLUDED
#define BOOST_STATECHART_EVENT_HPP_INCLUDED
//////////////////////////////////////////////////////////////////////////////
// Copyright 2002-2007 Andreas Huber Doenni
// Distributed under the Boost Software License, Version 1.0. (See accompany-
// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//////////////////////////////////////////////////////////////////////////////
#include <boost/statechart/event_base.hpp>
#include <boost/statechart/detail/rtti_policy.hpp>
#include <boost/statechart/detail/memory.hpp>
#include <boost/polymorphic_cast.hpp> // boost::polymorphic_downcast
#include <memory> // std::allocator
namespace boost
{
namespace statechart
{
//////////////////////////////////////////////////////////////////////////////
template< class MostDerived, class Allocator = std::allocator< void > >
class event : public detail::rtti_policy::rtti_derived_type<
MostDerived, event_base >
{
public:
//////////////////////////////////////////////////////////////////////////
// Compiler-generated copy constructor and copy assignment operator are
// fine
void * operator new( std::size_t size )
{
return detail::allocate< MostDerived, Allocator >( size );
}
void * operator new( std::size_t, void * p )
{
return p;
}
void operator delete( void * pEvent )
{
detail::deallocate< MostDerived, Allocator >( pEvent );
}
void operator delete( void * pEvent, void * p )
{
}
protected:
//////////////////////////////////////////////////////////////////////////
event() {}
virtual ~event() {}
private:
//////////////////////////////////////////////////////////////////////////
virtual intrusive_ptr< const event_base > clone() const
{
return intrusive_ptr< const event_base >( new MostDerived(
*polymorphic_downcast< const MostDerived * >( this ) ) );
}
};
} // namespace statechart
} // namespace boost
#endif