Re: monitoring changes in a local property
Re: monitoring changes in a local property
- Subject: Re: monitoring changes in a local property
- From: Eeyore <email@hidden>
- Date: Mon, 07 May 2012 20:50:36 -0700
Roland's right about ARC, you just need the set and copy. Just for the record, I don't think the pattern you present is safe when newSelection equals mySelection (as you release before you copy), you need something like one of the following:
if (mySelection != newSelection)
{
[mySelection release];
mySelection = [newSelection copy];
}
OR
[mySelection autorelease];
mySelection = [newSelection copy];
OR
oldSelection = mySelection;
mySelection = [newSelection copy];
[oldSelection release];
Aaron
On May 7, 2012, at 8:38 PM, Koen van der Drift wrote:
>
> On May 7, 2012, at 11:28 PM, Roland King wrote:
>
>> -(void)setMySelection:(NSArray*)newSelection
>> {
>> // set whatever instance variable you have for mySelection, with appropriate memory management if necessary
>
>
> I thought about that too, but how do I do that when using ARC? Can I still do this:
>
> [mySelection release];
> [mySelection = [newSelection copy]];
>
> or something along those lines?
>
> - Koen.
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