On Mon, Jul 4, 2011 at 4:16 AM, Allan McRae <al...@archlinux.org> wrote: > We can readily detect the first node in a list by checking if > node->prev->next is NULL. So there is no need to pass the head > of the list to this function and its prototype now looks like > all the other item accessors. >
This works even for single item list where the first item is the last, so node->prev == node. ACK
