On Sep 11, 2013, at 6:37 AM, Jean-Daniel Dupas <devli...@shadowlab.org> wrote:
>>> and that while in most code those would be lost in the noise, in some cases 
>>> people would need to help ARC out with things like __unsafe_unretained.
>> 
>> Hmm…I always thought that __unsafe_unretained was for instance variables, 
>> but given what you just wrote, I guess it could be used for normal automatic 
>> variables to opt them out of ARC? 
>> 
> 
> Yes. it works to disable ARC for arguments and other local variables.

And you can put __unsafe_unretained objects in struct declarations, if you feel 
you must, and ARC won't complain.

--Andy


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