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Fix the termination test in CIRCLEQ_FOREACH. 

Prompted by: Julian Assange <proff@iq.org>
This commit is contained in:
Justin T. Gibbs 1998-05-12 03:55:25 +00:00
parent 5d0957193a
commit e2039ecbff
1 changed files with 4 additions and 2 deletions
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6
sys/sys/queue.h
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)queue.h 8.5 (Berkeley) 8/20/94
* $Id: queue.h,v 1.19 1997/11/02 19:41:16 gibbs Exp $
* $Id: queue.h,v 1.20 1998/02/24 17:27:23 julian Exp $
*/
#ifndef _SYS_QUEUE_H_
@ -396,7 +396,9 @@ struct { \
#define CIRCLEQ_FIRST(head) ((head)->cqh_first)
#define CIRCLEQ_FOREACH(var, head, field) \
for((var) = (head)->cqh_first; (var); (var) = (var)->field.cqe_next)
for((var) = (head)->cqh_first; \
(var) != (void *)(head); \
(var) = (var)->field.cqe_next)
#define CIRCLEQ_INIT(head) do { \
(head)->cqh_first = (void *)(head); \