diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lists.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/lists.h b/lib/lists.h index 6fab12c4..0b0fdbe3 100644 --- a/lib/lists.h +++ b/lib/lists.h @@ -34,7 +34,8 @@ typedef struct list { /* In fact two overlayed nodes */ #define HEAD(list) ((void *)((list).head)) #define TAIL(list) ((void *)((list).tail)) #define NODE_NEXT(n) ((void *)((NODE (n))->next)) -#define WALK_LIST(n,list) for(n=HEAD(list);(NODE (n))->next; n=NODE_NEXT(n)) +#define NODE_VALID(n) ((NODE (n))->next) +#define WALK_LIST(n,list) for(n=HEAD(list); NODE_VALID(n); n=NODE_NEXT(n)) #define WALK_LIST_DELSAFE(n,nxt,list) \ for(n=HEAD(list); nxt=NODE_NEXT(n); n=(void *) nxt) /* WALK_LIST_FIRST supposes that called code removes each processed node */ |