Tim

Going back to your original question, the answer is there all the time but
buried in the enormous method dictionaries of the Collection subclasses.

If
you look at SequenceableCollection>>atWrap: you will see that it does
exactly what you want.

To get the item before the first, i.e. the zeroth:
#(1 2 3 4) atWrap: 0 => 4

To get the item after the last:
#(1 2 3 4) atWrap: 5 => 1

As seen here, the method is inherited by Array, so it should do all you
want.

HTH

Peter

Marcus Denker-4 wrote
>> On 29 Mar 2019, at 14:24, Ben Coman <
>> I believe there have been some proposals to separate out the Process
>> related LinkedList stuff, but I can't remember the exact arguments.
>
> Yes, we did that��� there is now ProcessList.
>
> We ran into that problem far too often ���hey, LinkedList can be cleaned up
> easily like this!��� ���> boom, everything broken.
>
> Now we have ProcessList where it matters if code is changed to introduce a
> message send more and LinkedList where it does not.