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Re: What is the equivalent of a C++ pure-virtual function in Objective-C?

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Re: What is the equivalent of a C++ pure-virtual function in Objective-C?

Subject: Re: What is the equivalent of a C++ pure-virtual function in Objective-C?
From: Dave DeLong <email@hidden>
Date: Sun, 11 Jan 2009 19:24:23 -0700

They're called "Protocols" and were the original inspiration for Java's interfaces:

http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Articles/chapter_7_section_1.html

HTH,

Dave

On 11 Jan, 2009, at 7:20 PM, Michael A. Crawford wrote:

I want to force derived classes to implement a given interface without provided a default implementation. Does the concept exist in Objective-C (I'm almost sure it does)? If so, what does the syntax look like?

-Michael

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  >What is the equivalent of a C++ pure-virtual function in	Objective-C? (From: "Michael A. Crawford" <email@hidden>)




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