14     pitem *items;  member
57     if (pq->items == NULL) {  in pqueue_insert()
58         pq->items = item;  in pqueue_insert()
62     for (curr = NULL, next = pq->items;  in pqueue_insert()
72                 pq->items = item;  in pqueue_insert()
91     return pq->items;  in pqueue_peek()
96     pitem *item = pq->items;  in pqueue_pop()
98     if (pq->items != NULL)  in pqueue_pop()
99         pq->items = pq->items->next;  in pqueue_pop()
109     if (pq->items == NULL)  in pqueue_find()
112     for (next = pq->items; next->next != NULL; next = next->next) {  in pqueue_find()
150     pitem *item = pq->items;  in pqueue_size()