Re: changing NSNumber from within another function
Re: changing NSNumber from within another function
- Subject: Re: changing NSNumber from within another function
- From: Alastair Houghton <email@hidden>
- Date: Fri, 28 Mar 2008 18:19:36 +0000
On 28 Mar 2008, at 17:29, Nick Zitzmann wrote:
On Mar 28, 2008, at 10:00 AM, Alastair Houghton wrote:
To answer your actual question, you might write:
- (void)function2:(NSNumber **)value
{
*value = [NSNumber numberWithBool:YES];
}
Careful about that - if value is NULL, then that will cause a crash.
That's why you have to check to make sure value is not NULL first.
A crash might be better than failing silently in some cases. It's a
judgement call, obviously, and certainly something to think about.
Kind regards,
Alastair.
--
http://alastairs-place.net
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