overrid class method, immobile circle class [fltk]

Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 14 Exercise 4
Using GUI library called FLTK (Fast Light Tool Kit, “full tick”).


//  Philipp Siedler
//  Bjarne Stroustrup's PP
//  Chapter 14 Exercise 4

#include "Simple_window.h"
#include "Graph.h"
#include <cmath>
using namespace Graph_lib;

class Immobile_Circle : public Circle
	Immobile_Circle(Point p, int rad)
		:Circle(p, rad) { }
	void move() { }

int main()
	Point tl(100, 100);
	Simple_window win(tl, 720, 400, "Simple Window");
	Point center(win.x_max() / 2, win.y_max() / 2);

	Immobile_Circle ic(center, 50);
	ic.move(); //no constructors to be placed

catch (exception& e) {
	cout << e.what() << endl;
	return 1;
catch (...) {
	cout << "Exiting" << endl;
	return 2;

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.