It is also useful for you to be able to access items at or relative
to the end of an SCL list. You can use negative indices to index an item
from the end of the list. Counting from the end of a list, the last item
is at index -1 and the first item is at position -n, where n is the length of the
list. Thus, you do not need to subtract indices from n
to access items relative to the end of the list. All of the SCL list functions
recognize negative indices.
Copyright © 2009 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
