C++ abstract classes for a game?

I remember my professor used one for a course. All we had to do was  override some virtual methods and our AI was automatically taken care of! OO is wonderful.

I dont remember exactly what it did. some sort of recursion or something. Does anyone have anything similar?

>>7,8
See, this is what pisses me off. What exactly is the implication here? That Windows invented NULL? NULL is just a macro. I suspect that >>7,8 are the same people, and we have been trolled constantly.