iOS How to Add NSTimeInterval to NSMutableArray?

[Stunner]

I am having problems adding NSTimeInterval to an NSMutableArray. Here is my code:

                NSTimeInterval timeDifference;
		timeDifference = [[self.arrayOfTimes objectAtIndex:arrayOfTimesCtr-1] 
						  timeIntervalSinceDate:[self.arrayOfTimes objectAtIndex:arrayOfTimesCtr-2]];
		[self.arrayOfTimeDifferences addObject:timeDifference]; //problem here

And the error I get from the problematic line is "error: incompatible type for argument 1 of 'addObject:'". So what I get from this is that it wants an object rather than a value, but I have looked through the array documentation and there are only addObject methods. Therefore I am wondering how I can append a regular value, like an int, or an NSTimeInterval for that matter, to an array. Thanks!

 

[dejo]

Therefore I am wondering how I can append a regular value, like an int, or an NSTimeInterval for that matter, to an array. Thanks!

Convert it to an object using NSNumber.

 

[Stunner]

Convert it to an object using NSNumber.

Awesome, thanks man. Figured it out.