Re: Overriding -copyWithZone: the right way

FROM : Bill Garrison
DATE : Fri Nov 05 22:42:59 2004

On Nov 5, 2004, at 1:52 PM, Jean-Olivier Lanctôt wrote:

> Is there an Apple document that tells us how to do it exactly?


I was just looking into this yesterday.  Check out the NSCopying 
protocol docs.

<http://developer.apple.com/documentation/Cocoa/Reference/Foundation/
ObjC_classic/Protocols/NSCopying.html>

DocoaBrowser also rocks for this: 
<http://www.iwascoding.com/DocoaBrowser/>


> On Fri, 5 Nov 2004 19:31:36 +0100, M. Uli Kusterer
> <witness.of.<email_removed>> wrote:

>> At 17:46 Uhr +0100 05.11.2004, Michael Becker wrote:
>>
>>

>>> - (id)copyWithZone:(NSZone *)zone {
>>>      PCShoppingCartCell *copy = [[ PCShoppingCartCell alloc]
>>> initImageCell:nil];
>>>      return copy;
>>> }



I implemented by copyWithZone: method using allocWithZone:, just to 
preserve the use of the zone argument.  I don't know if zones are used 
much any more, so maybe it's doesn't matter and a plain alloc: would 
suffice.

- Bill