How do I store an NSRange in a NSMutableArray or other container?

Question

Here's what I want to do:

NSRange r = NSMakeRange(0,5); id a = [NSMutableArray a]; [a addObject: r]; // but NSRange is not a NSObject * 

With a boolean, I'd use code like this:

[a addObject: [NSNumber numberWithBool: YES]]; 

or with an integer:

[a addObject: [NSNumber numberWithInteger: 3]]; 

So what's the equivalent with a NSRange? What I don't really want to do is create my own subclass of NSObject to accomplish this. Surely there's a way with what Apple's already provided?

Answer 1

Use NSValue's +valueWithRange:. To retrieve the range structure back, use the property rangeValue.

[a addObject:[NSValue valueWithRange:r]]; ...  NSRange r = a[4].rangeValue; 

Answer 2

[NSValue valueWithRange:r]; 

and get it back out with:

NSRange r = [rangeObject rangeValue];