queue.3: Remove wrong code from example

There was code containing ``CIRCLEQ_*`` in the examples for ``TAILQ_*``.  It was introduced by accident in commit ``041abbe``.

From 0c9dfbe9b1ce1130e9a92d1a16fbecd4a08bbe29 Mon Sep 17 00:00:00 2001
From: Alejandro Colomar <colomar.6.4.3@gmail.com>
Date: Wed, 12 Aug 2020 09:11:27 +0200
Subject: [PATCH] queue.3: Remove wrong code from example

Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man3/queue.3 b/man3/queue.3
index ff1f42f3a9dd8058af7d1f770a189c09397a91f5..260a5b8a5e30f80042bf4d7b7a338b9276ca3379 100644 (file)
--- a/man3/queue.3
+++ b/man3/queue.3
@@ -1219,18 +1219,6 @@ while (n1 != NULL) {
 }
 
 TAILQ_INIT(&head);
-n2 = malloc(sizeof(struct entry));  /* Insert before. */
-CIRCLEQ_INSERT_BEFORE(&head, n1, n2, entries);
-                                    /* Forward traversal. */
-for (np = head.cqh_first; np != (void *)&head;
-        np = np\->entries.cqe_next)
-    np\-> ...
-                                    /* Reverse traversal. */
-for (np = head.cqh_last; np != (void *)&head; np = np\->entries.cqe_prev)
-    np\-> ...
-                                    /* Delete. */
-while (head.cqh_first != (void *)&head)
-    CIRCLEQ_REMOVE(&head, head.cqh_first, entries);
 .Ed
 .Sh CONFORMING TO
 Not in POSIX.1, POSIX.1-2001 or POSIX.1-2008.