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Message: [QUOTE="Dasuraga, post: 3665074"] I'm rather new to the object-oriented aspects of C++, and this is the first time I've had to construct some classes with multiple inheritance. I'd rather not make a variable just to identify what type an object is (leading to using a case, which somewhat defeats the utility of derived classes). So, here's my problem. I have a couple classes in this layout(simplistically): class A{ void f()=0; } class B:virtual public A{ void f(); } class C:virtual public A{ void f(); } class D:virtual public A{ void f(); } class E:virtual public B,virtual public C{}; class F:virtual public B,virtual public D{}; So, is there a way to make it so that E::f() automatically invokes B::f(), then C::f()( similarly for F::f())? If not, is there a better layout that you might be able to suggest? [/QUOTE]