Re: Xcode Analyze memory misunderstanding
Re: Xcode Analyze memory misunderstanding
- Subject: Re: Xcode Analyze memory misunderstanding
- From: Jonathan del Strother <email@hidden>
- Date: Thu, 27 Aug 2009 11:44:40 +0100
On Thu, Aug 27, 2009 at 11:29 AM, Reza Farhad<email@hidden> wrote:
> Dear all
>
> I am running my code through xcode "Build and Analyze" to check for bugs.
> I have the function below which gives me the following error:
>
> Object with +0 retain counts returned to caller where a +1 (owning) retain
> count is expected
>
> I can not understand why can anybody enlighten me.
>
> -( NSColor *)newColour
> {
> NSColor *todoColour = nil;
> float newRed, newGreen, newBlue;
> float newAverage;
> do{
> todoColour = [ self variationOnColor:colour ];
> [ todoColour getRed:&newRed green:&newGreen blue:&newBlue
> alpha:nil ];
> newAverage = ( newRed + newGreen + newBlue )/3;
> }while( newAverage < 0.5 );
> return todoColour;
> }
>
>From here - http://developer.apple.com/documentation/Cocoa/Conceptual/MemoryMgmt/Articles/mmObjectOwnership.html#//apple_ref/doc/uid/20000043-BEHDEDDB
- methods starting with 'new' should return retained objects. Your
code is functionally fine, it just doesn't follow the usual
convention.
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