xref: /openbsd-src/lib/libc/stdlib/imaxdiv.c (revision aa522acb7767a019ec34685ba2d2710fbd672ae7)
1*aa522acbSmillert /*	$OpenBSD: imaxdiv.c,v 1.1 2006/01/13 17:58:09 millert Exp $	*/
2*aa522acbSmillert /*
3*aa522acbSmillert  * Copyright (c) 1990 Regents of the University of California.
4*aa522acbSmillert  * All rights reserved.
5*aa522acbSmillert  *
6*aa522acbSmillert  * This code is derived from software contributed to Berkeley by
7*aa522acbSmillert  * Chris Torek.
8*aa522acbSmillert  *
9*aa522acbSmillert  * Redistribution and use in source and binary forms, with or without
10*aa522acbSmillert  * modification, are permitted provided that the following conditions
11*aa522acbSmillert  * are met:
12*aa522acbSmillert  * 1. Redistributions of source code must retain the above copyright
13*aa522acbSmillert  *    notice, this list of conditions and the following disclaimer.
14*aa522acbSmillert  * 2. Redistributions in binary form must reproduce the above copyright
15*aa522acbSmillert  *    notice, this list of conditions and the following disclaimer in the
16*aa522acbSmillert  *    documentation and/or other materials provided with the distribution.
17*aa522acbSmillert  * 3. Neither the name of the University nor the names of its contributors
18*aa522acbSmillert  *    may be used to endorse or promote products derived from this software
19*aa522acbSmillert  *    without specific prior written permission.
20*aa522acbSmillert  *
21*aa522acbSmillert  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22*aa522acbSmillert  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23*aa522acbSmillert  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24*aa522acbSmillert  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25*aa522acbSmillert  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26*aa522acbSmillert  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27*aa522acbSmillert  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28*aa522acbSmillert  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29*aa522acbSmillert  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30*aa522acbSmillert  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31*aa522acbSmillert  * SUCH DAMAGE.
32*aa522acbSmillert  */
33*aa522acbSmillert 
34*aa522acbSmillert #include <inttypes.h>		/* imaxdiv_t */
35*aa522acbSmillert 
36*aa522acbSmillert imaxdiv_t
imaxdiv(intmax_t num,intmax_t denom)37*aa522acbSmillert imaxdiv(intmax_t num, intmax_t denom)
38*aa522acbSmillert {
39*aa522acbSmillert 	imaxdiv_t r;
40*aa522acbSmillert 
41*aa522acbSmillert 	/* see div.c for comments */
42*aa522acbSmillert 
43*aa522acbSmillert 	r.quot = num / denom;
44*aa522acbSmillert 	r.rem = num % denom;
45*aa522acbSmillert 	if (num >= 0 && r.rem < 0) {
46*aa522acbSmillert 		r.quot++;
47*aa522acbSmillert 		r.rem -= denom;
48*aa522acbSmillert 	}
49*aa522acbSmillert 	return (r);
50*aa522acbSmillert }
51