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Re: File Extensions Problem
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Re: File Extensions Problem


  • Subject: Re: File Extensions Problem
  • From: Thomas Engelmeier <email@hidden>
  • Date: Sat, 23 Aug 2008 01:24:31 +0200


Am 22.08.2008 um 17:23 schrieb Michael Ash:

On Fri, Aug 22, 2008 at 6:23 AM, Graham Cox <email@hidden> wrote:
safe to delete items in the array at or higher than the current index. By
the definition of an array, removing an item only affects the indexes of
objects with equal or greater indexes than the removed item.

You are making a big, unwarranted assumption about how reverseObjectEnumerator works. Namely, you are assuming that it merely tracks an index, and uses -objectAtIndex: (or equivalent) to retrieve each object.

actually, there was an extensive thread last year. It seemed each enumerator created surprisingly a copy of the array, giving the OP some memory (or performance?) related trouble. IIRC it was the combination of a tight loop with tons of enumerators w/o local autorelease pools. Fast enumerators probably changed the rules since Tiger.


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  • Follow-Ups:
    • Re: File Extensions Problem
      • From: "R.L. Grigg" <email@hidden>
References: 
 >File Extensions Problem (From: Adil Saleem <email@hidden>)
 >Re: File Extensions Problem (From: Michael Dautermann <email@hidden>)
 >Re: File Extensions Problem (From: Andrew Merenbach <email@hidden>)
 >Re: File Extensions Problem (From: Graham Cox <email@hidden>)
 >Re: File Extensions Problem (From: Phil <email@hidden>)
 >Re: File Extensions Problem (From: Graham Cox <email@hidden>)
 >Re: File Extensions Problem (From: "Michael Ash" <email@hidden>)

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