#ifndef BOOST_STATECHART_EVENT_HPP_INCLUDED

 #define BOOST_STATECHART_EVENT_HPP_INCLUDED

 //////////////////////////////////////////////////////////////////////////////

 // Copyright 2002-2006 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/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 delete( void * pEvent )

     {

       detail::deallocate< MostDerived, Allocator >( pEvent );

     }

   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