c10-

C++面向对象课程设计课件

class IntStack
{
	enum {ssize=100};
	int  stack[ssize];
	int  top;
public:
	IntStack():top(0)	{}
	void push(int i) 	{	stack[top++]=i;		}
	int  pos()		{	return stack[--top];	} 
	friend class IntStackIter;
};

class IntStackIter 
{
	IntStack&       s;
	int		index;
public:
	IntStackIter(Intstack& is):s(is),index(0){}
	int	operator++() 	{	return s.stack[++index];}
	int	operator++(int) {	return s.stack[index++];}
};

int 	main()
{
	IntStack is;
	for (int i=0;i<20;i++)
		is.push(i);
	IntStackIter it(is);
	for (int j=0;j<20;j++)
		cout<<it++<<endl;
}