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Re: Memory management on returning nil in init
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Re: Memory management on returning nil in init


  • Subject: Re: Memory management on returning nil in init
  • From: Eiko Bleicher <email@hidden>
  • Date: Mon, 21 Jun 2010 16:55:59 +0200

Thank you all, this gives me confidence in my code.

I was just hesistant because I didn't call alloc in the initializer - but that's probably one of the reasons why you always use alloc/init together when calling. :-)

Thanks to everyone who responded.
Eiko


Am 21.06.2010 um 16:51 schrieb Markus Hanauska:

>
> On Monday, 2010-06-21, at 16:43, Eiko Bleicher wrote:
>
>> -(id) initWithBool:(BOOL)ok
>> {
>>  if (self = [super init])
>>  {
>>     if (!ok) {
>>        return nil; // Point of interest
>>     }
>>  }
>>  return self;
>> }
>>
>> Does this code leak?
>
> According to my understanding of Cocoa, it does leak. You should call [self release], as otherwise the just created object (the object has already been created by [CLASS alloc] when init is being called) is never released otherwise. Further no other object that [super init] might create is released. My inits usually look like this:
>
> - (id)initWithBool:(BOOL)ok
> {
>  self = [super init];
>  if (self) {
>    if (!ok) {
>      [self release];
>      self = nil;
>     }
>  }
>  return self;
> }
>
> --
> Markus Hanauska
>
>
>
>

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References: 
 >Memory management on returning nil in init (From: Eiko Bleicher <email@hidden>)
 >Re: Memory management on returning nil in init (From: Markus Hanauska <email@hidden>)

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