diff options
Diffstat (limited to 'libbb/llist.c')
| -rw-r--r-- | libbb/llist.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/libbb/llist.c b/libbb/llist.c index dd80436..fde25e8 100644 --- a/libbb/llist.c +++ b/libbb/llist.c @@ -14,37 +14,29 @@ #ifdef L_llist_add_to /* Add data to the start of the linked list. */ -llist_t *llist_add_to(llist_t *old_head, void *data) +void llist_add_to(llist_t **old_head, void *data) { - llist_t *new_head; - - new_head = xmalloc(sizeof(llist_t)); + llist_t *new_head = xmalloc(sizeof(llist_t)); new_head->data = data; - new_head->link = old_head; - - return (new_head); + new_head->link = *old_head; + *old_head = new_head; } #endif #ifdef L_llist_add_to_end /* Add data to the end of the linked list. */ -llist_t *llist_add_to_end(llist_t *list_head, void *data) +void llist_add_to_end(llist_t **list_head, void *data) { - llist_t *new_item; - - new_item = xmalloc(sizeof(llist_t)); + llist_t *new_item = xmalloc(sizeof(llist_t)); new_item->data = data; new_item->link = NULL; - if (list_head == NULL) { - list_head = new_item; - } else { - llist_t *tail = list_head; - while (tail->link) - tail = tail->link; + if (!*list_head) *list_head = new_item; + else { + llist_t *tail = *list_head; + while (tail->link) tail = tail->link; tail->link = new_item; } - return list_head; } #endif |