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copy vs mutableCopy?

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copy vs mutableCopy?

Subject: copy vs mutableCopy?
From: Rob Ross <email@hidden>
Date: Tue, 11 Jul 2006 08:50:59 -0700

Ok, I know the difference between a mutable and immutable object. And I know the difference between a shallow copy and a deep copy.

But I am having trouble understanding the difference between implementing copy vs mutable copy, since it seems you can make mutable copies of immutable objects, and immutable copies of mutable objects. I'm just a bit confused how this works in practice.

I've read this:

http://developer.apple.com/documentation/Cocoa/Conceptual/MemoryMgmt/ Tasks/ImplementCopy.html

but it doesn't really tell me the difference between the two methods.


Rob Ross
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