tiemann@YAHI.STANFORD.EDU (Michael Tiemann) (05/08/89)
I need some help refreshing my memory. Given that we have a base class B and a class D derived from B, it is permissable to convert from a D* to a B*, provided visibility rules are not violated. Similarly for a D& to a B&. (1) Under what conditions can one convert from a D to a B? (2) Under what conditions can one convert from a D** to a B**? I thought I read somewhere that (2) was not legal, but now I can't find the reference. Please reply via email. Michael