[src/trunk]: src/sys/sys Add some missing macros from FreeBSD. man page chang...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0eb700bcef41
branches:  trunk
changeset: 785769:0eb700bcef41
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Mar 29 20:20:22 2013 +0000

description:
Add some missing macros from FreeBSD. man page changes incoming.

diffstat:

 sys/sys/tree.h |  22 +++++++++++++++++++++-
 1 files changed, 21 insertions(+), 1 deletions(-)

diffs (39 lines):

diff -r 0c3cc08081a1 -r 0eb700bcef41 sys/sys/tree.h
--- a/sys/sys/tree.h    Fri Mar 29 20:17:19 2013 +0000
+++ b/sys/sys/tree.h    Fri Mar 29 20:20:22 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tree.h,v 1.16 2008/03/21 13:07:15 ad Exp $     */
+/*     $NetBSD: tree.h,v 1.17 2013/03/29 20:20:22 christos Exp $       */
 /*     $OpenBSD: tree.h,v 1.7 2002/10/17 21:51:54 art Exp $    */
 /*
  * Copyright 2002 Niels Provos <provos%citi.umich.edu@localhost>
@@ -733,9 +733,29 @@
             (x) != NULL;                                               \
             (x) = name##_RB_NEXT(x))
 
+#define RB_FOREACH_FROM(x, name, y)                                    \
+       for ((x) = (y);                                                 \
+           ((x) != NULL) && ((y) = name##_RB_NEXT(x), (x) != NULL);    \
+            (x) = (y))
+
+#define RB_FOREACH_SAFE(x, name, head, y)                              \
+       for ((x) = RB_MIN(name, head);                                  \
+           ((x) != NULL) && ((y) = name##_RB_NEXT(x), (x) != NULL);    \
+            (x) = (y))
+
 #define RB_FOREACH_REVERSE(x, name, head)                              \
        for ((x) = RB_MAX(name, head);                                  \
             (x) != NULL;                                               \
             (x) = name##_RB_PREV(x))
 
+#define RB_FOREACH_REVERSE_FROM(x, name, y)                            \
+       for ((x) = (y);                                                 \
+           ((x) != NULL) && ((y) = name##_RB_PREV(x), (x) != NULL);    \
+            (x) = (y))
+
+#define RB_FOREACH_REVERSE_SAFE(x, name, head, y)                      \
+       for ((x) = RB_MAX(name, head);                                  \
+           ((x) != NULL) && ((y) = name##_RB_PREV(x), (x) != NULL);    \
+            (x) = (y))
+
 #endif /* _SYS_TREE_H_ */