[Qt-interest] Library binary compatibility issue

[Giacomo S.]

Il giorno ven, 21/05/2010 alle 12.29 +0200, Esben Mose Hansen ha
scritto:
> On Friday 21 May 2010 10:12:11 Giacomo S. wrote:
> > A question about binary compatibility issue in a library of mine:
> 
> When you override a virtual function, the function itself is virtual. E.g, the 
> attached program outputs
> 
>         C       B       A
> A       1       2       3                                                                                                                                                                     
> B       2       3                                                                                                                                                                             
> C       3                                                                                                                                                                                     
> 
> If B::foo() had been non-virtual, the middle (which is a object of type C 
> accessed through a pointer to type B) should have returned 2, not 3.
> 
> Thus, the function you want to make virtual is already virtual, if I 
> understand you correctly.
> 
> Wish I had to time to dig it out of the standard :)
> 

Thanks a lot!
 I thought that reimplementing a virtual method declaring its
implementation as non virtual would have removed the virtual
behaviour...

Thanks again!

Giacomo.

> 
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