Now this must be easy, but how can sum two NSNumber? Is like:
[one floatValue] + [two floatValue] or exist a better way?
Now this must be easy, but how can sum two NSNumber ? Is like:
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Now this must be easy, but how can sum two NSNumber? Is like:
[one floatValue] + [two floatValue] or exist a better way?
There is not really a better way, but you really should not be doing this if you can avoid it.
NSNumberexists as a wrapper to scalar numbers so you can store them in collections and pass them polymorphically with otherNSObjects. They are not really used to store numbers in actual math. If you do math on them it is much slower than performing the operation on just the scalars, which is probably why there are no convenience methods for it.For example:
Is blowing at a minimum 21 instructions on message dispatches, and however much code the methods take to unbox the and rebox the values (probably a few hundred) to do 1 instruction worth of math.
So if you need to store numbers in dicts use an
NSNumber, if you need to pass something that might be a number or string into a function use anNSNumber, but if you just want to do math stick with scalar C types.