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Re: Still can't figure out this overrelease bug
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Re: Still can't figure out this overrelease bug


  • Subject: Re: Still can't figure out this overrelease bug
  • From: "Theodore H. Smith" <email@hidden>
  • Date: Sat, 11 Jun 2005 13:30:53 +0100

OK, well hows about this. If I use NSAutoReleasePool well enough, maybe I can pin this bug down?

I've never done this before, though, it just seems like it might be possible, from what I read. I'm not exactly sure yet on what additional bugs I might create by (badly) using NSAutoReleasePool.

Let's say I had this code:

NSAutoReleasePool* p = [[NSAutoReleasePool alloc]init];
NSString* s = [NSString stringWithCString : "hello"];

[p drain];
[self doStuffWith : s]; // crash.
[p release]; // we never get here

Something like that would a bug introduced by badly using NSAutoReleasePool, right?

Then the problem becomes finding out which references to NSObjects I have for which lifetimes.

Let's (very theoretically) say then that I am able to perfectly figure out the lifetime of every NSObject I have.


NSAutoReleasePool* p = [[NSAutoReleasePool alloc]init]; NSString* s = [NSString stringWithCString : "hello"];

[s autorelease]; // over released!
[self doStuffWith : s];
[p drain]; // crash.
[p release];

Would that then help me pin down my bug, by making the crash closer to the point where I overrelease?

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  • Follow-Ups:
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References: 
 >Re: Still can't figure out this overrelease bug (From: "Theodore H. Smith" <email@hidden>)

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