From: David van Moolenbroek <david@minix3.org>
Date: Mon, 20 Dec 2010 23:52:53 +0000 (+0000)
Subject: sys/queue.h: add LIST_FOREACH_SAFE
X-Git-Tag: v3.2.0~711
X-Git-Url: http://zhaoyanbai.com/repos/man.nsupdate.html?a=commitdiff_plain;h=d23c3d110e8190723d3afdae0fc86269b7ef4948;p=minix.git

sys/queue.h: add LIST_FOREACH_SAFE
---

diff --git a/include/sys/queue.h b/include/sys/queue.h
index 4c72a39dd..91a83423b 100644
--- a/include/sys/queue.h
+++ b/include/sys/queue.h
@@ -166,6 +166,11 @@ struct {								\
 		(var);							\
 		(var) = ((var)->field.le_next))
 
+#define	LIST_FOREACH_SAFE(var, head, field, tvar)			\
+	for ((var) = LIST_FIRST((head));				\
+		(var) && ((tvar) = LIST_NEXT((var), field), 1);		\
+		(var) = (tvar))
+
 /*
  * List access methods.
  */