#ifndef STACK
#define STACK

class StackT {
   public:
       StackT();

       // supply the three missing functions

       void Push(ItemT);

       ItemT Pop(void);
       ItemT Top(void) const;

       int Size(void) const;
       bool IsEmpty(void) const;
       bool IsFull(void) const { return false;};

   private:
       ItemT * data;
       int size;
       int top;
};

#endif