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- /* Copyright (C) 1991, 1992 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., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <stdio.h>
- #include <setjmp.h>
- #include <stdlib.h>
-
- static jmp_buf env;
- static int last_value = -1, lose = 0;
-
- void
- DEFUN(jump, (val), int val)
- {
- longjmp(env, val);
- }
-
- int
- DEFUN_VOID(main)
- {
- 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)
- puts("Test FAILED!");
- else
- puts("Test succeeded!");
- exit(lose ? EXIT_FAILURE : EXIT_SUCCESS);
- }
-