1*58a2b000SEvgeniy Ivanov /* $NetBSD: twiddle.c,v 1.8 2008/04/30 16:18:09 ad Exp $ */
2*58a2b000SEvgeniy Ivanov
3*58a2b000SEvgeniy Ivanov /*-
4*58a2b000SEvgeniy Ivanov * Copyright (c) 1993
5*58a2b000SEvgeniy Ivanov * The Regents of the University of California. All rights reserved.
6*58a2b000SEvgeniy Ivanov *
7*58a2b000SEvgeniy Ivanov * Redistribution and use in source and binary forms, with or without
8*58a2b000SEvgeniy Ivanov * modification, are permitted provided that the following conditions
9*58a2b000SEvgeniy Ivanov * are met:
10*58a2b000SEvgeniy Ivanov * 1. Redistributions of source code must retain the above copyright
11*58a2b000SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer.
12*58a2b000SEvgeniy Ivanov * 2. Redistributions in binary form must reproduce the above copyright
13*58a2b000SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer in the
14*58a2b000SEvgeniy Ivanov * documentation and/or other materials provided with the distribution.
15*58a2b000SEvgeniy Ivanov * 3. Neither the name of the University nor the names of its contributors
16*58a2b000SEvgeniy Ivanov * may be used to endorse or promote products derived from this software
17*58a2b000SEvgeniy Ivanov * without specific prior written permission.
18*58a2b000SEvgeniy Ivanov *
19*58a2b000SEvgeniy Ivanov * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20*58a2b000SEvgeniy Ivanov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21*58a2b000SEvgeniy Ivanov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22*58a2b000SEvgeniy Ivanov * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23*58a2b000SEvgeniy Ivanov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24*58a2b000SEvgeniy Ivanov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25*58a2b000SEvgeniy Ivanov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26*58a2b000SEvgeniy Ivanov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27*58a2b000SEvgeniy Ivanov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28*58a2b000SEvgeniy Ivanov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29*58a2b000SEvgeniy Ivanov * SUCH DAMAGE.
30*58a2b000SEvgeniy Ivanov *
31*58a2b000SEvgeniy Ivanov * @(#)printf.c 8.1 (Berkeley) 6/11/93
32*58a2b000SEvgeniy Ivanov */
33*58a2b000SEvgeniy Ivanov
34*58a2b000SEvgeniy Ivanov #include <sys/cdefs.h>
35*58a2b000SEvgeniy Ivanov #include <sys/types.h>
36*58a2b000SEvgeniy Ivanov
37*58a2b000SEvgeniy Ivanov #include "stand.h"
38*58a2b000SEvgeniy Ivanov
39*58a2b000SEvgeniy Ivanov #define TWIDDLE_CHARS "|/-\\"
40*58a2b000SEvgeniy Ivanov
41*58a2b000SEvgeniy Ivanov char twiddle_toggle;
42*58a2b000SEvgeniy Ivanov
43*58a2b000SEvgeniy Ivanov void
twiddle(void)44*58a2b000SEvgeniy Ivanov twiddle(void)
45*58a2b000SEvgeniy Ivanov {
46*58a2b000SEvgeniy Ivanov static int pos;
47*58a2b000SEvgeniy Ivanov
48*58a2b000SEvgeniy Ivanov if (!twiddle_toggle) {
49*58a2b000SEvgeniy Ivanov putchar(TWIDDLE_CHARS[pos++ & 3]);
50*58a2b000SEvgeniy Ivanov putchar('\b');
51*58a2b000SEvgeniy Ivanov }
52*58a2b000SEvgeniy Ivanov }
53