[Bug c++/17920] add __attribute__((reimpl)) as a replacement for the (optional) virtual keyword for reimplementations of virtual functions

[giovannibajo at libero dot it]

------- Additional Comments From giovannibajo at libero dot it  2004-10-11 09:28 -------
(In reply to comment #4)

> I disagree with the notion that it is just a diagnostic related issue;
> because it comes with a semantics part.  Let's not not disguise a
> language extension under the name of diagnostic improvement.  
> It helps nobody. 

I am not trying to, really.

In my view, the compilation unit will produce exactly the same object file, 
whether attribute(reimpl) is implemented or not, used or not. The only 
difference is that with attribute(reimpl) we might emit a warning iff the 
method does not override another virtual method in the base class.

Why do you think there is a semantics part? Maybe I do not get it.

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17920