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/* File : example.cxx */
#include "example.h"
#define M_PI 3.14159265358979323846
/* Move the shape to a new location */
void Shape::move(double dx, double dy) {
x += dx;
y += dy;
}
int Shape::nshapes = 0;
Circle::Circle(double r) : radius(r) {
NumCircles++;
}
double Circle::area() {
return M_PI*radius*radius;
}
double Circle::perimeter() {
return 2*M_PI*radius;
}
Square::Square(double w) : width(w) {
NumSquares++;
}
double Square::area() {
return width*width;
}
double Square::perimeter() {
return 4*width;
}
int NumSquares = 0;
int NumCircles = 0;
Square MakeSquare(double r) {
return Square(r);
}
Circle MakeCircle(double w) {
return Circle(w);
}
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