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Re: NSString and Leaks Instrument, False Positives?

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Re: NSString and Leaks Instrument, False Positives?

Subject: Re: NSString and Leaks Instrument, False Positives?
From: Kevin Ross <email@hidden>
Date: Sat, 21 Mar 2009 16:56:38 -0700

Ummm....  Here is some truncated output from the command line leaks:

Leak: 0x15fd4970 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4990 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd49c0 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd49e0 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4a00 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4a20 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4a40 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4a60 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4a80 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port......... Leak: 0x15fd4ac0 size=32 instance of 'NSCFString', type ObjC, implemented in CoreFoundation 0xa00664a0 0x0100078c 0x5354410e 0x65755120 .d.......ATS Que 0x50207972 0x0074726f 0x00000000 0x00000000 ry Port.........


Is that what you are asking about?

Kevin

On Mar 21, 2009, at 4:51 PM, mm w wrote:

be careful with clang, sometimes is missing point,
your problem is coming not from this @"Arial Bold",
give the complete stack and explain what is the condition of the leak
False/positive: I have an extensive use of perf tools since years and I didn't see that since a while the leak can be deeper than your app === give the complete stack- trace

On Sat, Mar 21, 2009 at 4:43 PM, Kevin Ross <email@hidden> wrote:
Whoops, I thought that I'd also mention that I've run the code though the clang static analyzer and it doesn't report that there are any bugs. I'm also happy to post more code if it will help.
Thanks again!
Kevin
On Mar 21, 2009, at 4:36 PM, Kevin Ross wrote:
Hi everyone, I'm auditing my app and the both the "leaks" command line tool and the Instruments tool are both reporting that I have NSString leaks. All of the leaks are coming from code similar to the following:
NSFont *ageStarTextFont = [NSFont fontWithName:@"Arial Bold"
size:KRLesserDimensionOfRect(transientDrawingRect)/3];
I'm guessing that the string in question is the @"Arial Bold" since it that is the only string on that line, but from what I understand a string created like that doesn't require a -release message. Could these be false positives generated by the leaks tool, or is there something that I'm missing?
Thanks for any pointers!
Kevin Ross
Twenty-Four Mountains
Mac Feng Shui Software
email@hidden
twentyfourmountains.com
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Follow-Ups:

Re: NSString and Leaks Instrument, False Positives?
From: Bill Bumgarner <email@hidden>


References:  
  >NSString and Leaks Instrument, False Positives? (From: Kevin Ross <email@hidden>)
  >Re: NSString and Leaks Instrument, False Positives? (From: Kevin Ross <email@hidden>)
  >Re: NSString and Leaks Instrument, False Positives? (From: mm w <email@hidden>)




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