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Re: Math operations for NSNumber
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Re: Math operations for NSNumber


  • Subject: Re: Math operations for NSNumber
  • From: Nick Zitzmann <email@hidden>
  • Date: Thu, 31 May 2007 18:01:23 -0600


On May 31, 2007, at 5:31 PM, Ken Tozier wrote:

I know there are ways to extract C types from NSNumbers and numerous functions in Math.h for performing calculations but why doesn't NSNumber support calculations directly?

Because NSNumber is supposed to contain primitives in an array/ dictionary/set, not replace the primitives.


For example, say you have an NSArray of NSNumbers and you want to convert them in-place to their nth root. If NSNumber supported math functions, you could use NSArray's makeObjectsPerformSelector method to do it without having to loop through each, extract the value, get the root, and replace the number in the array.

There's nothing stopping you from writing your own method that does this, is there?


Nick Zitzmann
<http://www.chronosnet.com/>


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