minix/lib/ack/libp/mdi.c
2009-11-09 10:26:00 +00:00

71 lines
1.2 KiB
C

/* $Header$ */
/*
* (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
*
* This product is part of the Amsterdam Compiler Kit.
*
* Permission to use, sell, duplicate or disclose this software must be
* obtained in writing. Requests for such permissions may be sent to
*
* Dr. Andrew S. Tanenbaum
* Wiskundig Seminarium
* Vrije Universiteit
* Postbox 7161
* 1007 MC Amsterdam
* The Netherlands
*
*/
/* Author: J.W. Stevenson */
#include <pc_err.h>
extern _trp();
int _mdi(j,i) int j,i; {
if (j <= 0)
_trp(EMOD);
i = i % j;
if (i < 0)
i += j;
return(i);
}
long _mdil(j,i) long j,i; {
if (j <= 0)
_trp(EMOD);
i = i % j;
if (i < 0)
i += j;
return(i);
}
int _dvi(j, i) unsigned int j,i; {
int neg = 0;
if ((int)j < 0) {
j = -(int)j; neg = 1;
}
if ((int)i < 0) {
i = -(int)i; neg = !neg;
}
i = i / j;
if (neg) return -(int)i;
return i;
}
long _dvil(j, i) unsigned long j,i; {
int neg = 0;
if ((long)j < 0) {
j = -(long)j; neg = 1;
}
if ((long)i < 0) {
i = -(long)i; neg = !neg;
}
i = i / j;
if (neg) return -(long)i;
return i;
}