Re: Problems with [NSArray count]

FROM : David Duncan
DATE : Tue Apr 22 23:15:05 2008

On Apr 22, 2008, at 2:03 PM, Peter Browne wrote:

> I'm returning to Cocoa after quite a long break, and it seems that 
> I'm a little rusty...
>
> All I want to do is find out the number of items in an NSArray and 
> store that as a variable, which I can then find the square root of.
>
> The docs tell me that [NSArray count] returns an NSUInteger, but 
> exactly WHAT one of these is, or how I use it is baffling me.


An NSUInteger is just an integer that is 32-bits or 64-bits depending 
on if your application is compiled for 32-bit or 64-bit.

> a simple
>
>     int i = [myArray count];
>
> crashes out, and I've tried various other types of variable to no 
> avail. Any thoughts? Am I missing something blindingly obvious here?



Are you getting an exception? perhaps myArray isn't really an NSArray 
at the time that you are sending it the -count message?
--
David Duncan
Apple DTS Animation and Printing
david.<email_removed>