n//List Class
Implementation file: list.c
n
nclass node { //node definition
n string obj;
n node * next;
n};
n
nlist::list (const list
& l) {
n if (!l.head)
n head = ptr = tail = NULL;
n else {
n head = new node;
n head->obj = l.head->obj;
n
n node * dest = head; //why are these local?
n node * source = l.head;
n while (source) {
n dest->next = new node;
n dest = dest->next;
n dest->obj = source->obj; //what is this doing?
n }
n dest->next = NULL;
n tail = dest; ptr = head;
n }
n}
n
n