diff options
Diffstat (limited to 'source3/include/dlinklist.h')
| -rw-r--r-- | source3/include/dlinklist.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/source3/include/dlinklist.h b/source3/include/dlinklist.h index 8810eca5b9..851bf01d38 100644 --- a/source3/include/dlinklist.h +++ b/source3/include/dlinklist.h @@ -25,6 +25,7 @@ /* hook into the front of the list */ #define DLIST_ADD(list, p) \ +{ \ if (!(list)) { \ (list) = (p); \ (p)->next = (p)->prev = NULL; \ @@ -33,18 +34,21 @@ (p)->next = (list); \ (p)->prev = NULL; \ (list) = (p); \ - } + }\ +} /* remove an element from a list */ #define DLIST_REMOVE(list, p) \ +{ \ if ((p) == (list)) { \ (list) = (p)->next; \ if (list) (list)->prev = NULL; \ } else { \ (p)->prev->next = (p)->next; \ if ((p)->next) (p)->next->prev = (p)->prev; \ - } + } \ +} /* promote an element to the top of the list */ #define DLIST_PROMOTE(list, p) \ |