Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Hi, wie kann ich das Casten zu einer Basisklasse verbieten?
Gar nicht. Du kannst höchstens private Vererbung verwenden, dann dürfen nur die Member und friends casten.
(btw, wozu brauchst du's?)