Question

I’m having a hard time getting the hang of this. Say I have:

NSMutableArray *array1 which is already defined and has content.
Now I want to create another variable, NSMutableArray *array2.

When I do [array2 addObject:someObject], I want this object to be added to array1, not to array2. How can I assign array2 so that if I make any changes to it, it modifies array1 instead?

Answer 1

You would do something this:

NSMutableArray *array1 = [NSMutable arrayWithObjects:...];
NSMutableArray *array2 = array1;

[array2 addObject:someObject];
NSLog(@"%@", array1); // should now contain 'someObject'

I am confused, however, why are you trying to create two pointers to the same object?