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[Foo new] vs [[Foo alloc] init]: was Re: In-loop releasing of objects does not free memory?
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[Foo new] vs [[Foo alloc] init]: was Re: In-loop releasing of objects does not free memory?


  • Subject: [Foo new] vs [[Foo alloc] init]: was Re: In-loop releasing of objects does not free memory?
  • From: Adam P Jenkins <email@hidden>
  • Date: Fri, 15 Feb 2008 15:41:52 -0500

On Feb 15, 2008, at 3:07 PM, Keith Duncan wrote:

I hadn't considered the effect that changing the method would have on shipping apps - I was simply concerned that the function of the method doesn't match it's implied function IMHO.

for (i = 0; i < 1000; i++) {
 NSAutoreleasePool *pool = [NSAutoreleasePool new];
 // do some work
[pool drain];
}

I like this way of doing things. I don't use -new anywhere else in my code but using it for NSAutoreleasePool in a GC app would highlight that the pool is a *special* case. This is the pattern I'll be using, thanks for that!

As far as I understand, [Foo new] is exactly equivalent to [[Foo alloc] init], unless Foo has overridden +new to do something else. I've never understood why most example code shows [[Foo alloc] init] when [Foo new] is shorter, and I always just use +new. Is there any reason not to do that? _______________________________________________


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  • Follow-Ups:
    • Re: [Foo new] vs [[Foo alloc] init]:
      • From: Keith Duncan <email@hidden>
    • Re: [Foo new] vs [[Foo alloc] init]: was Re: In-loop releasing of objects does not free memory?
      • From: Bill Bumgarner <email@hidden>
References: 
 >In-loop releasing of objects does not free memory? (From: Arthur C. <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: John Terranova <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: John Stiles <email@hidden>)
 >RE: In-loop releasing of objects does not free memory? (From: Arthur C. <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Randall Meadows <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Uli Kusterer <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Nick Zitzmann <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Randall Meadows <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Michael Watson <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Keith Duncan <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Jim Correia <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Adam P Jenkins <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Jim Correia <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Adam P Jenkins <email@hidden>)
 >Re: In-loop releasing of objects does not free memory? (From: Keith Duncan <email@hidden>)

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