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Re: Obj-C private and XCode 2.3

On May 24, 2006, at 1:49 AM, Jean-Daniel Dupas wrote: 
I have installed XCode 2.3 and i have a problem with a piece of code.
I'have two classes like this:

@interface MyClass : NSObject {
@private
	id sd_delegate;

@interface MySubClass : MyClass {
@private
	id sd_delegate;

With XCode 2.2.1, private ivar from superclass was hidden in subclasses @interface (and @implementation), and it compile well, but with XCode 2.3 it appears that private ivars are only hidden in subclasses @implementation and i get this error: duplicate member 'sd_delegate'.

Gcc invocation look like this:

.....
Is this a last gcc version bug, or was this a gcc 4.0 bug?

Which XCode version was right?

Xcode 2.3 is exhibiting the correct behavior. The compiler fixed a bug where it wasn't warning about variable hiding in certain Objective-C contexts, this one included.

As Joar indicated, instance variables of the same name within a particular inheritance path through the class hierarchy isn't considered correct code. It also breaks KVO/KVC.

b.bum
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 >Obj-C private and XCode 2.3 (From: Jean-Daniel Dupas <email@hidden>)



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