How to build an in-memory state engine at runtime

//	Copyright � 2007, solosTec
//  All rights reserved.
//---------------------------------------------------------------------
//	License for redistribution is the GNU General Public License v2.
//	See the included readme.txt for details.
//---------------------------------------------------------------------
//	developed by solosTec
//	http://www.solostec.de
//---------------------------------------------------------------------
//
//	$Author: $
//	$Revision: $
/*	$Log: $
*/
//---------------------------------------------------------------------
/**
 *	Implements an initialization policy.
 */
#pragma once

namespace turban {
namespace general {

//	+-----------------------------------------------------------------+
//	| initialize [declaration]
//	+-----------------------------------------------------------------+
/**
*	Initialization policy.
*/
template < typename T >
struct initialize
{
	template< class TOther_ >
	struct rebind
	{	// convert an initializer< T > to an initializer < TOther_ >
		typedef initialize< TOther_ > other;
	};

	void operator()( T& value ) const
	{
		new( &value ) T();
	}
	bool operator()( T& value, const T& initialValue ) const
	{
		new( &value ) T( initialValue );
		return value == initialValue;
	}
};

}	//	namespace general
}	//	namespace turban