#ifndef SQUARE_HH
#define SQUARE_HH
#include "Shape.hh"
class Square: public Shape {
public:
// Constructor, destructor
Square(double size) : _size(size) {} ;
virtual ~Square() {} ;
// Implementation of abstract interface
virtual double surface() const { return _size * _size ; }
virtual double circumference() const { return 4 * _size ; }
virtual const char* shapeName() const { return "Square"; }
private:
double _size ;
} ;
#endif
