1 /* Test of perror() function.
2    Copyright (C) 2008-2019 Free Software Foundation, Inc.
3 
4    This program is free software; you can redistribute it and/or modify
5    it under the terms of the GNU General Public License as published by
6    the Free Software Foundation; either version 3, or (at your option)
7    any later version.
8 
9    This program is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12    GNU General Public License for more details.
13 
14    You should have received a copy of the GNU General Public License
15    along with this program; if not, see <https://www.gnu.org/licenses/>.  */
16 
17 #include <config.h>
18 
19 #include <stdio.h>
20 
21 #include "signature.h"
22 SIGNATURE_CHECK (perror, void, (char const *));
23 
24 #include <errno.h>
25 
26 int
main(int argc,char ** argv)27 main (int argc, char **argv)
28 {
29   const char *prefix = (argc > 1 ? argv[1] : NULL);
30 
31   errno = EACCES;    perror (prefix);
32   errno = ETIMEDOUT; perror (prefix);
33   errno = EOVERFLOW; perror (prefix);
34 
35   return 0;
36 }
37