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Objective-c primitive arrays

I want to have a mutable array with primitives in obj-c (selectors). What's the recommended way to do this? NSArray

and those can only contain objects.

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To wrap a selector or any other primitive type you need to use NSValue

. In Cocoa, SEL is some kind of pointer, so you can use [NSValue valueWithPointer:whatever]

to create it and [value pointerValue]

to get it. Or more generally, you can use [NSValue valueWithBytes:&whatever objCType:@encode(SEL)]

; it works for any type.



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If you want to store an array of objects SEL

, the easiest way is to convert SEL

to NSString

with a function NSStringFromSelector()

, store them in NSMutableArray

, and then convert them back to SEL

when you pull them out with a function NSSelectorFromString()

.



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Apart from managing the C-style array yourself (this is definitely not the best option, IMO), the only option is to use NSArray

/ NSMutableArray

and store the numbers with NSNumber

. It's a little more annoying to get a value than with an actual numeric type, but it frees you from managing the array's memory yourself.

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Since primitive types are just numbers (be they integers or floating point) or pointers, what's the problem with using the classes used to port them for your purposes? NSMutableArray

NSNumbers

, eg?

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