// Now overloading examples with class Point.
// Class point with a constructor of type double, and a conversion from Point to double.

class Point {
private: 
  double x, y;

public:
  Point(double d);              
  operator double() const;      

  double getx () const;
  double gety () const;
};

std::ostream& operator<<(std::ostream&, const Point&);