4.3.3 Alias

To set a list to be the alias of another list, we only need to duplicate the pointer to the first node. The C implementation is as follows. Note that the list pointed to by pList becomes an alias of the list pointed to by orig.

void List_makealias(struct List *pList, struct List *orig)
{
  ((struct _List *))pList->first = ((struct _List *)orig)->first;
}