>
> I'd suggest a different syntax:
>
> class A : public B, public C
> {
> virtual int B::lock() override;
> virtual int C::lock() override;
> };
>
> but I've only needed this rarely; I suspect it probably isn't worth the
> trouble.

With such syntax you could get rid of `override`, since it can be
deduced (maybe even `virtual`, but some language rules might prevent this).


Regards
Michał