glibc/setjmp/bug269-setjmp.c

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/* Copyright (C) 2004-2015 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/>. */
/* Test case for Bugzilla # 269 */
#include <stdio.h>
#include <setjmp.h>
#include <stdlib.h>
jmp_buf buf1;
jmp_buf buf2;
int *p;
int n_x = 6;
static int g_counter = 0;
int
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f (void)
{
static int counter = 0;
static int way_point1 = 3;
static int way_point2 = 2;
int lose = 0;
if (setjmp (buf1) != 101)
{
int a[n_x]; /* reallocate stack space */
g_counter++;
p = &a[0];
if (g_counter < 5)
longjmp (buf1, 2);
else if (g_counter == 5)
longjmp (buf1, 101);
else
{
_setjmp (buf2);
_longjmp (buf1, 101);
}
}
way_point1--;
if (counter == 0)
{
counter++;
{
int a[n_x]; /* reallocate stack space */
g_counter++;
p = &a[0];
if (g_counter < 5)
longjmp (buf1, 2);
else if (g_counter == 5)
longjmp (buf1, 101);
else
{
_setjmp (buf2);
_longjmp (buf1, 101);
}
}
}
way_point2--;
if (counter == 1)
{
counter++;
longjmp (buf2, 2);
}
lose = !(way_point1 == 0 && way_point2 == 0
&& g_counter == 6 && counter == 2);
return lose;
}
static int
do_test (void)
{
int lose;
lose = f ();
if (lose)
puts ("Test FAILED!");
else
puts ("Test succeeded!");
return lose ? EXIT_FAILURE : EXIT_SUCCESS;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"