Re: darwin going upstream ?

[Richard Frith-Macdonald]

On 13 Feb 2007, at 19:52, Andrew Pinski wrote:

> On 2/13/07, Adam Fedor <fedor@qwest.net> wrote:
> > > ...
> > > '_OBJC_INSTANCE_14' defined but not used
> > > '_OBJC_INSTANCE_15' defined but not used
> > > '_OBJC_INSTANCE_16' defined but not used
> > > '_OBJC_INSTANCE_17' defined but not used
> > > ...
> >
> > It's a bug in certain versions of gcc. But it is harmless.
>
> It is a bug in only 4.1.0 and 4.1.1 of GCC.  It will be fixed in 4.1.2
> which should be released by the end of the week with also the fix for
> objective-C PCH.

Speaking of ObjC GCC bugs ... does anyone know where I would find  
details of the bug in 4.1.1 where the compiler allows you to use a  
name for an ivar in a subclass when it has already been used in the  
superclass.
ie code  like:

@interface ClassA : Object
{
int var1;
}
@end

@interface ClassB : ClassA
{
char *var1;
}
@end

seems to be permitted by the compiler with predictably horrible  
consequences.