Re: Confusing problems with inheritance in Objective-C
Re: Confusing problems with inheritance in Objective-C
- Subject: Re: Confusing problems with inheritance in Objective-C
- From: Prachi Gauriar <email@hidden>
- Date: Mon, 21 Jun 2004 21:52:24 -0500
On Jun 21, 2004, at 9:31 PM, Darren Ford wrote:
Hey all,
I've been having some problems trying to implement inheritance using
Objective-C (more specifically, attempting to create a class that
inherits from NSMutableDictionary).
<snip>
Isn't NSMutableDictionary a concrete class (ie. I can instantiate
one using alloc/init?)
No, NSMutableDictionary is not a concrete class. It is the public
abstract superclass of a class cluster. See
<
http://developer.apple.com/documentation/Cocoa/Conceptual/Foundation/
Concepts/ClassClusters.html> for more information.
-Prachi
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