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Re: removing all sublayers from a layer with fast enumeration
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Re: removing all sublayers from a layer with fast enumeration


  • Subject: Re: removing all sublayers from a layer with fast enumeration
  • From: David Duncan <email@hidden>
  • Date: Mon, 30 Nov 2009 14:33:17 -0500

Your modifying an array that is being enumerated, which is illegal.

--
David Duncan @ My iPhone

On Nov 30, 2009, at 2:23 PM, Matt Neuburg <email@hidden> wrote:

To remove all sublayers from a layer, it is sufficient to set that layer's
sublayers property to nil, so this code is completely unnecessary. But I'm
just curious as to why it doesn't work:


for (CALayer* sub in myview.layer.sublayers)
 [sub removeFromSuperlayer];

This crashes as if the fast enumeration itself were somehow illegal. Why?
Thx -


m.

--
matt neuburg, phd = email@hidden, <http://www.tidbits.com/matt/>
A fool + a tool + an autorelease pool = cool!
AppleScript: the Definitive Guide - Second Edition!
http://www.tidbits.com/matt/default.html#applescriptthings



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