Re: [OT] Retain count riddle
Re: [OT] Retain count riddle
- Subject: Re: [OT] Retain count riddle
- From: Stefan Fisk <email@hidden>
- Date: Wed, 31 Mar 2004 12:30:08 +0200
why not just: #define SAFE_SET(old,new) [old release]; old = [new
retain];
or am i just being stupid?
2004-03-30 kl. 23.00 skrev Steve Stockman:
On Mar 30, 2004, at 1:49 PM, Sailesh Agrawal wrote:
So I had this bug the other day that I thought would make an
interesting
riddle.
The code looked like this:
#define SAFE_SET(old, new) [new retain]; [old release]; old =
new;
Others have already pointed out the leak and the crash, but if you
still want to use a macro, I would suggest redefining it as:
#define SAFE_SET(old,new) do { id _temp=[(new) retain]; [old
release]; old=_temp; } while(0)
--
Steve Stockman
Architect, Norton Utilities for Macintosh
Symantec Corporation
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.