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Re: No sure way to tell whether an array is mutable?

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Re: No sure way to tell whether an array is mutable?

Subject: Re: No sure way to tell whether an array is mutable?
From: Nick Zitzmann <email@hidden>
Date: Thu, 25 Jan 2007 19:43:31 -0700


On Jan 25, 2007, at 7:21 PM, Kenny Leung wrote:

I think I have just been burned by something sinister: an object says that it is an NSMutableArray, but turns out to be non-mutable.

The only (publicly available) method I know of telling an NSArray and an NSMutableArray apart is by calling -classForCoder on the array. A mutable array will return [NSMutableArray class]; an immutable array won't.

Nick Zitzmann
<http://www.chronosnet.com/>


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  >No sure way to tell whether an array is mutable? (From: Kenny Leung <email@hidden>)




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