Question

I’m struggling to create an array of ints in objective c.

the way I’d do this is javascript would be:

arr = new Array ( 1, 2, 3, 4, 3, 2, 2 ); 

I need to use an NSMutableArray, as the values need to be updated (it’s a tile map for a game).

How can I do this?

Answer 1

Does the array need to change length?

If not, why not use a normal array of ints:

int arr[] = { 1, 2, 3, 4, 3, 2, 2}; 

Note that an NSArray (or subclass thereof) doesn’t hold int types natively, you have to create an NSNumber object.

If you really need an Objective-C style array, then use this:

int vals[] = { 1, 2, 3, 4, 3, 2, 2};  // you still need this int n = sizeof(vals) / sizeof(vals[0]);  [NSMutableArray* array = [[NSMutableArray alloc] initWithCapacity:n]; for (int i = 0; i < n; ++i) {     [array addObject: [NSNumber numberWithInt:vals[i]]]; }