From aea2dcabdc4ed80172ac8d4f5c4d31bc8607d1e7 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Thu, 9 Jul 1998 19:35:23 +0000 Subject: [PATCH] Adding walk list which permits you to delete entries. --- lib/lists.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/lib/lists.h b/lib/lists.h index 3230724f..ae02ad43 100644 --- a/lib/lists.h +++ b/lib/lists.h @@ -20,8 +20,14 @@ typedef struct list { /* In fact two overlayed nodes */ #define NODE (node *) #define HEAD(list) ((void *)((list).head)) #define TAIL(list) ((void *)((list).tail)) -#define WALK_LIST(n,list) for((n)=HEAD(list);(NODE (n))->next; \ +#define WALK_LIST(n,list) for((NODE (n))=HEAD(list);(NODE (n))->next; \ n=(void *)((NODE (n))->next)) +#define WALK_LIST_DELSAFE(n,ne,list) \ + if ( ((NODE n) = HEAD(list)) ) \ + for( (NODE ne) = (NODE n)->next; \ + ne; \ + (NODE ne) = (NODE (n=ne))->next ) + #define EMPTY_LIST(list) (!(list).head->next) void add_tail(list *, node *);