// namespace12.h		By: Aiman Hanna -  ©1993-2006 Aiman Hanna

#ifndef __NAMESPACE12_H
#define __NAMESPACE12_H

#include "namespace11.h"

namespace region4
{
class Calc2
{
	public:
		Calc2(double x = 10);
		void setValue(region3::Calc1&); // duplicate value to the same value of the passed object
		double getValue();
		
	private:
		double v1;

};

// Global object (variable)

	static Calc2 dup(220);

}// end of namespace region4


namespace region3	// "Extension" to region3
{

	void Greeting();
}
#endif