/* intstack.h -- A variation on Prof.LaFollette's code
 */

#ifndef _INTSTACK_H_
#define _INTSTACK_H_

class IntStack
{
public:
  IntStack(int maxSize = 100); //construct stack of given size (with default)
  IntStack(const IntStack &); //copy constructor
  ~IntStack();  //destructor

  IntStack & operator=(const IntStack &); //assignment operator for deep copy

  bool isempty() const; 
  bool isfull() const;
  void push(int);
  int pop();
  int peek() const; //return top value without popping it.

private: 
  int *body;  //body of the stack
  int length; //will hold maximum size
  int sp;     //stack pointer
};

#endif