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Re: Confusing problems with inheritance in Objective-C
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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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References: 
 >Confusing problems with inheritance in Objective-C (From: Darren Ford <email@hidden>)

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