Kousik Sanagavarapu <five231003@xxxxxxxxx> writes: > -/* Modify list in-place to reverse it, returning new head; list will be tail */ > +/* > + * Modify list in-place to reverse it, returning new head; list will be tail. > + * > + * NOTE! The reversed list is constructed using the elements of the original > + * list, hence losing the original list. > + */ After re-reading the original, I realize that "in-place" is good enough clue to say that this is destructive.