Memory Leaks in iPhone

In my application, I am not able to remove the followin开发者_Python百科g memory leaks:

[NSCFString appendString]

[NSCFString copyWithZone];

[NSDecimalNumberPlaceHolder initWithDecimal]

[SBJsonParser scanRestOfArray]

[SBJsonParser scanRestOfDictionary]

[NSPlaceholderMutableString initWithCapacity]

How to remove these leaks?

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These are not leaks caused by system libraries. Leaks tool just points you where is the possible cause of the leak. For example, if you write like this:

NSString* str = [[NSString alloc] initWithCString: "some_str"];

In this example str is allocated but never released. Leaks tool would show you that there is a leak in [NSPlaceholderString initWithCString:] but in fact there is leak because you didn't send release message to str.

So a little tip: always search problem in your own code and not in the frameworks you're using.