
Question:
I'm creating an object that will have two integers (or NSNumber
s) and an NSDate
as ivars. This object will be in an NSMutableArray
. To my knowledge, we cannot put primative integers in an NSMutableArray
, but will my object work with int
s? The reason I don't want to use NSNumber
s is because these will have to be mutable, and I don't really want to create a new NSNumber
everytime.
Also, will using int
s create problems with iphone architecture differences?
Solution:1
1) You can safely use ints as ivars because they are wrapped in another object. NSNumber is just a Cocoa class wrapper for the different numeric types.
2)To be safe, you could use NSUInteger
, which is typedef
ed like this:
#if __LP64__ || NS_BUILD_32_LIKE_64 typedef long NSInteger; typedef unsigned long NSUInteger; #else typedef int NSInteger; typedef unsigned int NSUInteger;
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