A question on Classes

General and Gameplay Programming Programming

Started by Harvester March 11, 2001 01:29 PM

1 comment, last by Harvester 23 years, 10 months ago

Author

122

March 11, 2001 01:29 PM

Assume that i have two classes class A; class B:public A; and i take a pointer later on, such as... B b; A* a=&b Obviously, i can go move from the outter class to the inherited classes. However, how can i do the reverese? that would be: B *bb=a; in a few source it looks like this...

  
class A{
  int i1;
}

class B:public A{
  int i2;
}

void main(){
  B cB;
  A *cA=&cB

  //The line that troubles me...

  B *cBB=cA;
}

Obviously this will produce an error. I''m sure there must be some macro or something that can get me back to the ''child'' class. Any ideas? thanks

... LEMMINGS ... LEMMINGS ... LEMMINGS ... LEM..... SpLaSh!...Could this be what we stand like before the mighty One?Are we LeMmIngS or WhAt!? ;)

Shannon Barber

1,684

March 11, 2001 01:47 PM

    class A{  int i1;}class B:public A{  int i2;}void main(){  B cB;  A *cA=&cB  //The line that troubles me...  B *cBB=dynamic_cast<B*>(cA);}

Magmai Kai Holmlor
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