Re: NSPointerArray on iOS - truly __weak?
Re: NSPointerArray on iOS - truly __weak?
- Subject: Re: NSPointerArray on iOS - truly __weak?
- From: Matt Neuburg <email@hidden>
- Date: Tue, 22 Jan 2013 07:54:42 -0800
That just repeats the question - as I said (and you quoted), "are the docs just lying?" The point is that I prefer not to guess. I would like to be told officially that on iOS (not Mac OS X) these classes are doing ARC-__weak references under ARC when asked for weak behavior. m.
On Jan 22, 2013, at 7:08 AM, Mike Abdullah <email@hidden> wrote:
>
> On 10 Dec 2012, at 20:26, Matt Neuburg <email@hidden> wrote:
>
>> Bump. I'd still like to hear about this. The docs have a *huge* box saying that iOS NSPointerArray is not doing __weak references, but it sure looks to me like it is. But I don't know how to test. Thanks for any help. m.
>>
>> On Fri, 30 Nov 2012 07:51:57 -0800, Matt Neuburg <email@hidden> said:
>>> The docs for NSPointerArray say, in a big bold box right at the top:
>>>
>>>> Important: NSPointerArray does not support weak references under Automatic Reference Counting (ARC).
>>>
>>> However, a [NSPointerArray weakObjectsPointerArray] does NULL an element that has been released through ARC; I can test this directly, and I've also been using NSPointerArray successfully to break retain cycles. So are the docs just lying (in a big bold box right at the top), or is this some other kind of weak reference (i.e. somehow weak, but not ARC-__weak)?
>
> I spotted this elsewhere in the docs today:
>
>> Starting in OS X v10.8, the Foundation framework offers the following features and enhancements:
>>
>> Support for zeroing weak references with enhancements to the NSMapTable, NSHashTable, and NSPointerArray classes.
>
> So I guess the regular docs just haven't been updated yet.
--
matt neuburg, phd = email@hidden, http://www.apeth.net/matt/
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