+/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
/* The head of the linked list. Use this in the structure that shall
* contain the head of the linked list */
#define LIST_HEAD(t,name) \
for ((i) = (p)->name##_next ? (p)->name##_next : (head); \
(i) != (p); \
(i) = (i)->name##_next ? (i)->name##_next : (head))
+
+#define LIST_IS_EMPTY(head) \
+ (!(head))