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Re: Objective-C variadic methods vs. NSArray et al.

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Re: Objective-C variadic methods vs. NSArray et al.

Subject: Re: Objective-C variadic methods vs. NSArray et al.
From: Bill Bumgarner <email@hidden>
Date: Fri, 21 Nov 2008 15:44:39 -0800

On Nov 21, 2008, at 5:40 PM, Scott Thompson wrote:

Technical QA 1405 concerns the creation of Objective-C methods that take variable number of arguments... so called variadic methods. Happily the mechanisms just use the standard C mechanisms (va_start and friends).

That being the case, why is it that methods like arrayWithObjects: require you to nil terminate the list of arguments? Is it simply tradition, or some kind of optimization?

I don't need to know... I'm just curious.

Without a count, how would the array know how many objects it should pop off the stack?

b.bum

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  >Objective-C variadic methods vs. NSArray et al. (From: Scott Thompson <email@hidden>)




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