118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
/* Copyright (C) 1991, 1992, 1997, 1998, 2000 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 <stdio.h>
|
|
#include <setjmp.h>
|
|
#include <stdlib.h>
|
|
|
|
static jmp_buf env;
|
|
static int last_value = -1, lose = 0;
|
|
|
|
static void
|
|
jump (int val)
|
|
{
|
|
longjmp (env, val);
|
|
}
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int value;
|
|
|
|
value = setjmp (env);
|
|
if (value != last_value + 1)
|
|
{
|
|
fputs("Shouldn't have ", stdout);
|
|
lose = 1;
|
|
}
|
|
last_value = value;
|
|
switch (value)
|
|
{
|
|
case 0:
|
|
puts("Saved environment.");
|
|
jump (0);
|
|
default:
|
|
printf ("Jumped to %d.\n", value);
|
|
if (value < 10)
|
|
jump (value + 1);
|
|
}
|
|
|
|
if (!lose && value == 10)
|
|
{
|
|
/* Do a second test, this time without `setjmp' being a macro.
|
|
This is not required by ISO C but we have this for compatibility. */
|
|
#undef setjmp
|
|
extern int setjmp (jmp_buf);
|
|
|
|
last_value = -1;
|
|
lose = 0;
|
|
|
|
value = setjmp (env);
|
|
if (value != last_value + 1)
|
|
{
|
|
fputs("Shouldn't have ", stdout);
|
|
lose = 1;
|
|
}
|
|
last_value = value;
|
|
switch (value)
|
|
{
|
|
case 0:
|
|
puts("Saved environment.");
|
|
jump (0);
|
|
default:
|
|
printf ("Jumped to %d.\n", value);
|
|
if (value < 10)
|
|
jump (value + 1);
|
|
}
|
|
}
|
|
|
|
if (!lose && value == 10)
|
|
{
|
|
/* And again for the `_setjmp' function. */
|
|
#ifndef _setjmp
|
|
extern int _setjmp (jmp_buf);
|
|
#endif
|
|
last_value = -1;
|
|
lose = 0;
|
|
|
|
value = _setjmp (env);
|
|
if (value != last_value + 1)
|
|
{
|
|
fputs("Shouldn't have ", stdout);
|
|
lose = 1;
|
|
}
|
|
last_value = value;
|
|
switch (value)
|
|
{
|
|
case 0:
|
|
puts("Saved environment.");
|
|
jump (0);
|
|
default:
|
|
printf ("Jumped to %d.\n", value);
|
|
if (value < 10)
|
|
jump (value + 1);
|
|
}
|
|
}
|
|
|
|
if (lose || value != 10)
|
|
puts ("Test FAILED!");
|
|
else
|
|
puts ("Test succeeded!");
|
|
|
|
return lose ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|