62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stdio.h>
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#include <setjmp.h>
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#include <stdlib.h>
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static jmp_buf env;
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static int last_value = -1, lose = 0;
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void
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DEFUN(jump, (val), int val)
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{
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longjmp(env, val);
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}
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int
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DEFUN_VOID(main)
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{
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int value;
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value = setjmp(env);
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if (value != last_value + 1)
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{
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fputs("Shouldn't have ", stdout);
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lose = 1;
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}
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last_value = value;
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switch (value)
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{
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case 0:
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puts("Saved environment.");
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jump(0);
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default:
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printf("Jumped to %d.\n", value);
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if (value < 10)
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jump(value + 1);
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}
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if (lose || value != 10)
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puts("Test FAILED!");
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else
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puts("Test succeeded!");
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exit(lose ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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