Re: do you init your instance variables in init method or outside the class?
Re: do you init your instance variables in init method or outside the class?
- Subject: Re: do you init your instance variables in init method or outside the class?
- From: Jean-Daniel Dupas <email@hidden>
- Date: Wed, 18 Jul 2012 15:12:59 +0200
Le 18 juil. 2012 à 15:03, Chris Ridd <email@hidden> a écrit :
>
> On 18 Jul 2012, at 08:09, Lee Ann Rucker wrote:
>
>> In init, and only when they need it. They're all initialized to nil, which is a perfectly reasonable value for an instvar to have; there's very rarely a reason to do anything like
>>
>>> name = [NSString string];
>>
>> because sending a method to nil is perfectly safe, unlike C++.
>>
>>> foodLists = [NSMutableArray array];
>>
>> is necessary, as you've seen, but not for the reasons you think.
>
> Both of those lines are going to cause random crashes later on because they're non-retained objects.
>
They are perfectly valid lines in the new ARC world.
-- Jean-Daniel
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