#ifndef POINT_CLASS_H
#define POINT_CLASS_H

#include <iostream>
using namespace std;

// Topics:
//
//   access control
//   friendship
//   static member variables 

class point2D {

  friend ostream & operator<< (ostream &, const point2D &);

public:

// default constructor (defaults to member-wise default construction 
// if no-other constructors declared)
  point2D ();

// copy constructor (defaults to member-wise copy construction 
// if not declared)
  point2D (const point2D &);

// assignment operator (defaults to member-wise assignment if not declared)
  point2D & operator= (const point2D &);

// destructor (defaults to member-wise destruction if not declared)
  ~point2D ();

private:
  static unsigned int count_;
  int x_;
  int y_;
};

ostream & operator<< (ostream &, const point2D &);


#endif /* POINT_CLASS_H */