Re: Ambiguos inheritance - is this aceptable for gcc
fcannizzo.mifft2001@london.edu wrote:
This compile and run with MS VC7.1. Is it ok also for gcc?
Thanks,
Fabio
struct A { virtual int foo() const = 0; };
struct B { virtual int foo() const = 0; };
struct C : public A, public B {
virtual int foo() const { return 1; }; // this is declared
virtual both in A and B!!!
};
There's nothing here that's ambiguous. C has one function named foo. If
you have a pointer to an object of type C and you convert it to a
pointer to an object of type A you can call A's foo, which is overridden
in C, so you end up calling C's foo. Same thing when you convert to a
pointer to B.
So, yes, it's okay. And sometimes useful.
--
-- Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com)
Author of "The Standard C++ Library Extensions: a Tutorial and
Reference." (www.petebecker.com/tr1book)
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