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/* Copyright (C) 1991, 1992, 1997 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
#include <setjmp.h>
#include <stdlib.h>
static jmp_buf env;
static int last_value = -1, lose = 0;
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. */
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)
puts ("Test FAILED!");
else
puts ("Test succeeded!");
exit (lose ? EXIT_FAILURE : EXIT_SUCCESS);
}
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