1 /* Test of strerror() function.
2 Copyright (C) 2007-2011 Free Software Foundation, Inc.
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)
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.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Eric Blake <ebb9@byu.net>, 2007. */
24 #include "signature.h"
25 SIGNATURE_CHECK (strerror, char *, (int));
37 str = strerror (EACCES);
43 str = strerror (ETIMEDOUT);
49 str = strerror (EOVERFLOW);
54 /* POSIX requires strerror (0) to succeed. Reject use of "Unknown
55 error", but allow "Success", "No error", or even Solaris' "Error
56 0" which are distinct patterns from true out-of-range strings.
57 http://austingroupbugs.net/view.php?id=382 */
63 ASSERT (strstr (str, "nknown") == NULL);
64 ASSERT (strstr (str, "ndefined") == NULL);
66 /* POSIX requires strerror to produce a non-NULL result for all
67 inputs; as an extension, we also guarantee a non-empty reseult.
68 Reporting EINVAL is optional. */
73 ASSERT (errno == 0 || errno == EINVAL);