1 files changed, 43 insertions, 0 deletions
diff --git a/tests/test-time-h.c b/tests/test-time-h.c
new file mode 100644
index 00000000..01f9fff8
--- /dev/null
+++ b/tests/test-time-h.c
@@ -0,0 +1,43 @@
+/* Test of <time.h> substitute.
+   Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <time.h>
+
+/* Check that the types are all defined.  */
+struct timespec t1;
+#if 0
+/* POSIX:2008 does not require pid_t in <time.h> unconditionally, and indeed
+   it's missing on Mac OS X 10.5, FreeBSD 6.4, OpenBSD 4.9, mingw.  */
+pid_t t2;
+#endif
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+static_assert (sizeof NULL == sizeof (void *));
+
+/* Check that TIME_UTC is defined and a positive integer.  */
+int t3 = TIME_UTC;
+static_assert (TIME_UTC > 0);
+
+int
+main (void)
+{
+  return 0;
+}