On Fri, Oct 8, 2010 at 4:39 PM, Rick Mann <rm...@latencyzero.com> wrote:
> I'm trying to add an ivar to a (sub)class in the base class' +initialize 
> method. I'm not sure if it's too late to do it at this point or not. If I 
> can't do it here, i don't know where to make the call.

>From the documentation:

"Adding an instance variable to an existing class is not supported."

http://developer.apple.com/library/ios/#documentation/cocoa/reference/ObjCRuntimeRef/Reference/reference.html

Use objc_setAssociatedObject instead.

--Kyle Sluder
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