mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
|
/* Test nan functions stack overflow (bug 16962).
|
||
|
|
Copyright (C) 2015 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
The GNU C Library 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.
|
||
|
|
|
||
|
|
The GNU C Library 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 the GNU C Library; if not, see
|
||
|
|
<http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <math.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/resource.h>
|
||
|
|
|
||
|
|
#define STACK_LIM 1048576
|
||
|
|
#define STRING_SIZE (2 * STACK_LIM)
|
||
|
|
|
||
|
|
static int
|
||
|
|
do_test (void)
|
||
|
|
{
|
||
|
|
int result = 0;
|
||
|
|
struct rlimit lim;
|
||
|
|
getrlimit (RLIMIT_STACK, &lim);
|
||
|
|
lim.rlim_cur = STACK_LIM;
|
||
|
|
setrlimit (RLIMIT_STACK, &lim);
|
||
|
|
char *nanstr = malloc (STRING_SIZE);
|
||
|
|
if (nanstr == NULL)
|
||
|
|
{
|
||
|
|
puts ("malloc failed, cannot test");
|
||
|
|
return 77;
|
||
|
|
}
|
||
|
|
memset (nanstr, '0', STRING_SIZE - 1);
|
||
|
|
nanstr[STRING_SIZE - 1] = 0;
|
||
|
|
#define NAN_TEST(TYPE, FUNC) \
|
||
|
|
do \
|
||
|
|
{ \
|
||
|
|
char *volatile p = nanstr; \
|
||
|
|
volatile TYPE v = FUNC (p); \
|
||
|
|
if (isnan (v)) \
|
||
|
|
puts ("PASS: " #FUNC); \
|
||
|
|
else \
|
||
|
|
{ \
|
||
|
|
puts ("FAIL: " #FUNC); \
|
||
|
|
result = 1; \
|
||
|
|
} \
|
||
|
|
} \
|
||
|
|
while (0)
|
||
|
|
NAN_TEST (float, nanf);
|
||
|
|
NAN_TEST (double, nan);
|
||
|
|
#ifndef NO_LONG_DOUBLE
|
||
|
|
NAN_TEST (long double, nanl);
|
||
|
|
#endif
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define TEST_FUNCTION do_test ()
|
||
|
|
#include "../test-skeleton.c"
|