/Src/Dependencies/Boost/boost/statechart/event.hpp

 1#ifndef BOOST_STATECHART_EVENT_HPP_INCLUDED
 2#define BOOST_STATECHART_EVENT_HPP_INCLUDED
 3//////////////////////////////////////////////////////////////////////////////
 4// Copyright 2002-2007 Andreas Huber Doenni
 5// Distributed under the Boost Software License, Version 1.0. (See accompany-
 6// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 7//////////////////////////////////////////////////////////////////////////////
 8
 9
10
11#include <boost/statechart/event_base.hpp>
12#include <boost/statechart/detail/rtti_policy.hpp>
13#include <boost/statechart/detail/memory.hpp>
14
15#include <boost/cast.hpp> // boost::polymorphic_downcast
16
17#include <memory> // std::allocator
18
19
20
21namespace boost
22{
23namespace statechart
24{
25
26
27
28//////////////////////////////////////////////////////////////////////////////
29template< class MostDerived, class Allocator = std::allocator< void > >
30class event : public detail::rtti_policy::rtti_derived_type<
31  MostDerived, event_base >
32{
33  public:
34    //////////////////////////////////////////////////////////////////////////
35    // Compiler-generated copy constructor and copy assignment operator are
36    // fine
37
38    void * operator new( std::size_t size )
39    {
40      return detail::allocate< MostDerived, Allocator >( size );
41    }
42
43    void * operator new( std::size_t, void * p )
44    {
45      return p;
46    }
47
48    void operator delete( void * pEvent )
49    {
50      detail::deallocate< MostDerived, Allocator >( pEvent );
51    }
52
53    void operator delete( void * pEvent, void * p )
54    {
55    }
56
57  protected:
58    //////////////////////////////////////////////////////////////////////////
59    event() {}
60    virtual ~event() {}
61
62  private:
63    //////////////////////////////////////////////////////////////////////////
64    virtual intrusive_ptr< const event_base > clone() const
65    {
66      return intrusive_ptr< const event_base >( new MostDerived(
67        *polymorphic_downcast< const MostDerived * >( this ) ) );
68    }
69};
70
71
72
73} // namespace statechart
74} // namespace boost
75
76
77
78#endif