lib/libc/stdlib/imaxdiv.c

   1 /*-
   2  * Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/lib/libc/stdlib/imaxdiv.c,v 1.1 2001/11/15 02:05:03 mike Exp $
  27  * $DragonFly: src/lib/libc/stdlib/imaxdiv.c,v 1.1 2008/01/25 23:24:31 swildner Exp $
  28  */
  29
  30 #include <inttypes.h>
  31
  32 imaxdiv_t
  33 imaxdiv(intmax_t numer, intmax_t denom)
  34 {
  35         imaxdiv_t retval;
  36
  37         /* see div.c for comments */
  38
  39         retval.quot = numer / denom;
  40         retval.rem = numer % denom;
  41         if (numer >= 0 && retval.rem < 0) {
  42                 retval.quot++;
  43                 retval.rem -= denom;
  44         }
  45         return (retval);
  46 }