|
@@ -0,0 +1,48 @@
|
|
|
+
|
|
|
+ This file is part of the GNU C Library.
|
|
|
+
|
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
+ modify it under the terms of the GNU Library General Public License as
|
|
|
+ published by the Free Software Foundation; either version 2 of the
|
|
|
+ License, or (at your option) any later version.
|
|
|
+
|
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
+ Library General Public License for more details.
|
|
|
+
|
|
|
+ You should have received a copy of the GNU Library General Public
|
|
|
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
|
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
+ Boston, MA 02111-1307, USA. */
|
|
|
+
|
|
|
+#include <stddef.h>
|
|
|
+#define _GNU_SOURCE
|
|
|
+#define _SVID_SOURCE
|
|
|
+#include <search.h>
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+void
|
|
|
+insque (void *elem, void *prev)
|
|
|
+{
|
|
|
+ struct qelem *next = ((struct qelem *) prev)->q_forw;
|
|
|
+ ((struct qelem *) prev)->q_forw = (struct qelem *) elem;
|
|
|
+ if (next != NULL)
|
|
|
+ next->q_back = (struct qelem *) elem;
|
|
|
+ ((struct qelem *) elem)->q_forw = next;
|
|
|
+ ((struct qelem *) elem)->q_back = (struct qelem *) prev;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+
|
|
|
+void
|
|
|
+remque (void *elem)
|
|
|
+{
|
|
|
+ struct qelem *next = ((struct qelem *) elem)->q_forw;
|
|
|
+ struct qelem *prev = ((struct qelem *) elem)->q_back;
|
|
|
+ if (next != NULL)
|
|
|
+ next->q_back = prev;
|
|
|
+ if (prev != NULL)
|
|
|
+ prev->q_forw = (struct qelem *) next;
|
|
|
+}
|