// IN Mapping.h

#include <string>
#include <iostream.h>

class Mapping
{
public:
	Mapping(string name, int value);
	~Mapping(void);

	void   SetName(string name);
	string GetName(void);

	void  SetValue(int value);
	int   GetValue(void);

private:
	class MappingImpl& my;
};


// MAIN PROGRAM

int main(void)
{
	Mapping m1("two",1);
	Mapping m2("three",1);

	cout << m1.GetName() << ": " << m1.GetValue() << endl;
	cout << m2.GetName() << ": " << m2.GetValue() << endl;

	m1.SetName("one");
	m2.SetValue(3);

	cout << m1.GetName() << ": " << m1.GetValue() << endl;
	cout << m2.GetName() << ": " << m2.GetValue() << endl;
}


// IN Mapping.C

class MappingImpl
{
private:
	friend class Mapping;

	string Name;
	int    Value;
};

Mapping::Mapping(string name, int value)
: my ( *new MappingImpl )
{
	my.Name  = name;
	my.Value = value;
}

Mapping::~Mapping(void) { delete &my; }

void   Mapping::SetName(string name)	{ my.Name = name; }
string Mapping::GetName(void)		{ return my.Name; }

void Mapping::SetValue(int value)	{ my.Value = value; }
int  Mapping::GetValue(void)		{ return my.Value; }