1 /* Test nan functions stack overflow (bug 16962).
2 Copyright (C) 2015-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
22 #include <sys/resource.h>
25 #define STACK_LIM 1048576
26 #define STRING_SIZE (2 * STACK_LIM)
33 getrlimit (RLIMIT_STACK
, &lim
);
34 lim
.rlim_cur
= STACK_LIM
;
35 setrlimit (RLIMIT_STACK
, &lim
);
36 char *nanstr
= malloc (STRING_SIZE
);
39 puts ("malloc failed, cannot test");
42 memset (nanstr
, '0', STRING_SIZE
- 1);
43 nanstr
[STRING_SIZE
- 1] = 0;
44 #define NAN_TEST(TYPE, FUNC) \
47 char *volatile p = nanstr; \
48 volatile TYPE v = FUNC (p); \
50 puts ("PASS: " #FUNC); \
53 puts ("FAIL: " #FUNC); \
58 NAN_TEST (float, nanf
);
59 NAN_TEST (double, nan
);
60 NAN_TEST (long double, nanl
);
64 #define TEST_FUNCTION do_test ()
65 #include "../test-skeleton.c"