[src/trunk]: src/sys/sys Use existing macros to implement TAILQ_FOREACH_REVER...

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

details:   https://anonhg.NetBSD.org/src/rev/a793af0566e2
branches:  trunk
changeset: 811509:a793af0566e2
user:      christos <christos%NetBSD.org@localhost>
date:      Mon Nov 02 14:49:07 2015 +0000

description:
Use existing macros to implement TAILQ_FOREACH_REVERSE, like
TAILQ_FOREACH_REVERSE_SAFE does.

diffstat:

 sys/sys/queue.h |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (33 lines):

diff -r a32374922ea0 -r a793af0566e2 sys/sys/queue.h
--- a/sys/sys/queue.h   Mon Nov 02 12:06:33 2015 +0000
+++ b/sys/sys/queue.h   Mon Nov 02 14:49:07 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: queue.h,v 1.68 2014/11/19 08:10:01 uebayasi Exp $      */
+/*     $NetBSD: queue.h,v 1.69 2015/11/02 14:49:07 christos Exp $      */
 
 /*
  * Copyright (c) 1991, 1993
@@ -421,9 +421,9 @@
 #define        TAILQ_END(head)                 (NULL)
 #define        TAILQ_NEXT(elm, field)          ((elm)->field.tqe_next)
 #define        TAILQ_LAST(head, headname) \
-       (*(((struct headname *)((head)->tqh_last))->tqh_last))
+       (*(((struct headname *)(void *)((head)->tqh_last))->tqh_last))
 #define        TAILQ_PREV(elm, headname, field) \
-       (*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
+       (*(((struct headname *)(void *)((elm)->field.tqe_prev))->tqh_last))
 #define        TAILQ_EMPTY(head)               (TAILQ_FIRST(head) == TAILQ_END(head))
 
 
@@ -438,9 +438,9 @@
            ((next) = TAILQ_NEXT(var, field), 1); (var) = (next))
 
 #define        TAILQ_FOREACH_REVERSE(var, head, headname, field)               \
-       for ((var) = (*(((struct headname *)((head)->tqh_last))->tqh_last));\
+       for ((var) = TAILQ_LAST((head), headname);                      \
            (var) != TAILQ_END(head);                                   \
-           (var) = (*(((struct headname *)((var)->field.tqe_prev))->tqh_last)))
+           (var) = TAILQ_PREV((var), headname, field)
 
 #define        TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, prev)    \
        for ((var) = TAILQ_LAST((head), headname);                      \