#include "Vstack.h"
#ifndef TONYASTACK
#define TONYASTACK 1
template<class T>
    class Array_stack : public Gstack<T> {
    	int sz;
    	int top;
    	T* astack;
    public:
    	Array_stack(int );
    	Array_stack();
    	~Array_stack();
		void push(T );
    	T pop();
    	bool isempty(); 
    	bool isfull(); 
    };
#endif