Is objectAtIndexedSubscript available in IOS5?

Question

The documentation says it\'s available in MacOS 1.08.

So what\'s the story? What about for iOS5?

It\'s a very important selector because self[5] will actuall

Answer 1

No, only since iOS 6 unfortunately.

Apple has separate documentations for the OS X and the iOS APIs. You have to check the right one: objectAtIndexedSubscript:.

Availability
Available in iOS 6.0 and later.

Answer 2

I look at the NSOrderedSet.h file and I saw this:

- (id)objectAtIndexedSubscript:(NSUInteger)idx NS_AVAILABLE(10_8, 6_0);

So it doesn't work for IOS5.

Answer 3

If you need your code to run on iOS 5, you'll need to replace

myOrderedSetOfHilariousAcronyms[2] = @"ROFL";

with

[myOrderedSetOfHilariousAcronyms setObject:@"ROFL" atIndex:2];

Answer 4

While objectAtIndexedSubscript: is not available previous to iOS 6, NSArray and NSDictionarysubscripting is available. That means that you can use syntax like this:

myArray[2] = @"thingie";
myDictionary[@"roger"] = @"barry";

And it will deploy back to iOS 4.

However NSOrderedSet subscripting will not work on iOS 5 and previous. For that, you will need to provide a category that redirects objectAtIndexedSubscript: calls to objectAtIndex:.

Addendum: Apple's docs for NSMutableOrderedSet are also incorrect. It states that index subscripting does an insert, when in reality is does a replace (as one would expect).