From 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe Mon Sep 17 00:00:00 2001
From: Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com>
Date: Fri, 1 Feb 2019 22:55:37 +0000
Subject: initial population

---
 usr.bin/make/lst.lib/lstDeQueue.c | 87 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 usr.bin/make/lst.lib/lstDeQueue.c

(limited to 'usr.bin/make/lst.lib/lstDeQueue.c')

diff --git a/usr.bin/make/lst.lib/lstDeQueue.c b/usr.bin/make/lst.lib/lstDeQueue.c
new file mode 100644
index 0000000..bdb05cc
--- /dev/null
+++ b/usr.bin/make/lst.lib/lstDeQueue.c
@@ -0,0 +1,87 @@
+/*	$NetBSD: lstDeQueue.c,v 1.14 2009/01/23 21:26:30 dsl Exp $	*/
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Adam de Boor.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef MAKE_NATIVE
+static char rcsid[] = "$NetBSD: lstDeQueue.c,v 1.14 2009/01/23 21:26:30 dsl Exp $";
+#else
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)lstDeQueue.c	8.1 (Berkeley) 6/6/93";
+#else
+__RCSID("$NetBSD: lstDeQueue.c,v 1.14 2009/01/23 21:26:30 dsl Exp $");
+#endif
+#endif /* not lint */
+#endif
+
+/*-
+ * LstDeQueue.c --
+ *	Remove the node and return its datum from the head of the list
+ */
+
+#include	"lstInt.h"
+
+/*-
+ *-----------------------------------------------------------------------
+ * Lst_DeQueue --
+ *	Remove and return the datum at the head of the given list.
+ *
+ * Results:
+ *	The datum in the node at the head or NULL if the list
+ *	is empty.
+ *
+ * Side Effects:
+ *	The head node is removed from the list.
+ *
+ *-----------------------------------------------------------------------
+ */
+void *
+Lst_DeQueue(Lst l)
+{
+    void *rd;
+    ListNode	tln;
+
+    tln = Lst_First(l);
+    if (tln == NULL) {
+	return NULL;
+    }
+
+    rd = tln->datum;
+    if (Lst_Remove(l, tln) == FAILURE) {
+	return NULL;
+    } else {
+	return (rd);
+    }
+}
+
-- 
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