Using a for-in loop with NSInteger?

for-in-loop, ios5

Solution

In Objective-C you can use a for-in loop with NSNumber like this:

    NSArray *array = /*NSArray with NSNumber*/;

    for (NSNumber *n in array) {
        NSLog(@"i: %d", [n intValue]);
    }

Check this out.

Problem

I have an NSMutableArray populated with NSIntegers. I need to loop through the array. I could do: ``` // given NSMutableArray *array of NSIntegers NSUInteger n = [array count]; for (NSInteger i = 0; i < n; i++) { NSInteger x = [array objectAtIndex:i]; // query SQLite WHERE id = x } ``` However, it seems that a for (object in array) loop would be cleaner. iOS 5 does not accept NSIntegers or NSNumbers as objects in for-in loops. Should I loop through the array with NSObjects, casting the NSObject to an NSInteger during each iteration? Is there another way? Or is a for loop like the one above the cleanest solution to this problem?

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