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Re: Memory management with arrays
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Re: Memory management with arrays


  • Subject: Re: Memory management with arrays
  • From: Scott Andrew <email@hidden>
  • Date: Sat, 9 Feb 2008 22:16:26 -0800

Here is my guess, just because i hit this recently. It had to do with the [bar autorelease] call. This returns an autoreleased object. That may not be valid when you cam back around to removeAllObjects. Try the following:

void foo
{
	[array removeAllObjects];

	Bar* bar = [[Bar alloc] init];
	[array addObject:bar];
	[bar release];
}

the following should also work..

void foo
{
	[array removeAllObjects];

	Bar* bar = [[[Bar alloc] init] autorelease];

	[array addObject:bar];
}

Scott

On Feb 9, 2008, at 7:48 PM, Jacob Bandes-Storch wrote:

I have an array that is an instance variable. I'm trying to add an object to it, and autorelease that object, so the next time this happens, I can remove all objects in the array and the object will be gone.

- (void)foo {
[array removeAllObjects];
Bar *bar = [[Bar alloc] init];
[array addObject:[bar autorelease];
}

This should remove all the objects, and add a new one. Basically, I want the old Bar instance gone, and the new one in the array. However, when I do this, I get an EXC_BAD_ACCESS when it tries to - removeAllObjects. What's the problem?
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  • Follow-Ups:
    • Re: Memory management with arrays
      • From: Bill Bumgarner <email@hidden>
References: 
 >Memory management with arrays (From: Jacob Bandes-Storch <email@hidden>)

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