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POIncorrect decrement of the reference count of an object that is not owned at this point by the caller
primarykey
Id
5312997
data
AcceptedAnswerId
5313055
AnswerCount
2
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2011-03-15T14:11:33.830
FavoriteCount
5
LastActivityDate
2011-03-15T20:37:36.010
LastEditDate
2011-03-15T20:37:36.010
LastEditorUserId
558353
OwnerUserId
558353
ParentId
0
PostTypeId
1
Score
3
ViewCount
3241
LastEditorDisplayName
text
Body
<p>Incorrect decrement of the reference count of an object that is not owned at this point by the caller on iPhone. It is happening with NSString which I clearly init and release within the for loop. I have tried to do the same as an autoreleases string but I get leaks. I assume the culprit is the stringbytrimming call. Any suggestions, by the way this does not leak, but I get the warning in build and analyze. Everything also works fine and the app does not crash.</p> <pre><code>for(int i=0;i<storyQuantity;i++) { NSString *imageString = [[NSString alloc] init]; imageString = [[[storiesArray objectAtIndex:i] objectForKey: @"image"] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; // must add trimming to remove characters imageLoader *imageOperation = [[imageLoader alloc] initWithImageURL:imageString target:self action:@selector(didImageLoad:) number:i]; AppDelegate_iPad *appDelegate = [[UIApplication sharedApplication] delegate]; [appDelegate.queue_ addOperation:imageOperation]; [imageOperation release]; [imageString release]; } </code></pre> <p>UPDATE - added my imageLoader class, which to the best of my knowledge does not have a leak</p> <pre><code>- (id)initWithImageURL:(NSString *)url target:(id)target action:(SEL)action number:(int)number { if(self = [super init]) { _action = action; _target = target; _number = number; if(url == nil) { return nil; } else { _imgURL = [[NSURL alloc] initWithString:[url copy]]; } } return self; } - (id)main { NSAutoreleasePool *pool = [NSAutoreleasePool new]; if ([self isCancelled]) { NSLog(@"OPERATION CANCELLED"); [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; [pool drain]; return nil; } else { [UIApplication sharedApplication].networkActivityIndicatorVisible = YES; NSData *imgData = [[NSData alloc] initWithContentsOfURL:_imgURL]; UIImage *image = [[UIImage alloc] initWithData:imgData]; [imgData release]; if ([self isCancelled]) { NSLog(@"OPERATION CANCELLED"); [image release]; [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; [pool drain]; return nil; } else { NSNumber *tempNumber = [NSNumber numberWithInt:_number]; NSDictionary *tempDict = [NSDictionary dictionaryWithObjectsAndKeys:tempNumber, @"number", image, @"image", nil]; [image release]; if([_target respondsToSelector:_action]) [_target performSelectorOnMainThread:_action withObject:tempDict waitUntilDone:NO]; } } [pool drain]; return nil; } - (void)dealloc { [_imgURL release]; [super dealloc]; } </code></pre>
Tags
<iphone><xcode><memory><nsstring><trimming>
Title
Incorrect decrement of the reference count of an object that is not owned at this point by the caller
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PostAcceptedAnswerId
1. PO
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  PTAnswer
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1. This table or related slice is empty.
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1. PTQuestion
UserLastEditorUserId
1. USzambono
UserOwnerUserId
1. USzambono
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1. This table or related slice is empty.
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1. PO
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CommentsPostId
1. COIt seems like you could use a bit of brushing up on your C pointer skills. I recommend studying: http://boredzo.org/pointers
  singulars
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  POIncorrect decrement of the reference count of an object that is not owned at this point by the caller
  UserUserId
  USDave DeLong

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