New function qdiv. Like div and ldiv, but works with quad_t's.
This commit is contained in:
jtc
parent
f442fd56dc
commit
bfd7fc20d9
|
|
@ -1,5 +1,5 @@
|
|||
# from: @(#)Makefile.inc 5.6 (Berkeley) 6/4/91
|
||||
# $Id: Makefile.inc,v 1.23 1995/02/10 17:46:54 cgd Exp $
|
||||
# $Id: Makefile.inc,v 1.24 1995/03/21 23:12:35 jtc Exp $
|
||||
|
||||
# stdlib sources
|
||||
.PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/stdlib ${.CURDIR}/stdlib
|
||||
|
|
@ -9,7 +9,7 @@ SRCS+= a64l.c abort.c atexit.c atoi.c atof.c atol.c bsearch.c calloc.c \
|
|||
multibyte.c putenv.c qsort.c radixsort.c rand.c random.c realpath.c \
|
||||
setenv.c strtod.c strtol.c strtoq.c strtoul.c strtouq.c system.c \
|
||||
_rand48.c drand48.c erand48.c jrand48.c lcong48.c lrand48.c \
|
||||
mrand48.c nrand48.c seed48.c srand48.c
|
||||
mrand48.c nrand48.c seed48.c srand48.c qdiv.c
|
||||
|
||||
.if (${MACHINE_ARCH} == "m68k")
|
||||
SRCS+= abs.S div.c labs.c ldiv.c
|
||||
|
|
@ -30,8 +30,8 @@ SRCS+= abs.c div.c labs.c ldiv.c
|
|||
|
||||
MAN+= abort.3 abs.3 alloca.3 atexit.3 atof.3 atoi.3 atol.3 bsearch.3 \
|
||||
calloc.3 div.3 exit.3 free.3 getenv.3 getopt.3 labs.3 ldiv.3 \
|
||||
malloc.3 memory.3 qsort.3 radixsort.3 rand48.3 rand.3 random.3 \
|
||||
realloc.3 realpath.3 strtod.3 strtol.3 strtoul.3 system.3
|
||||
malloc.3 memory.3 qdiv.3 qsort.3 radixsort.3 rand48.3 rand.3 \
|
||||
random.3 realloc.3 realpath.3 strtod.3 strtol.3 strtoul.3 system.3
|
||||
|
||||
MLINKS+=getenv.3 setenv.3 getenv.3 unsetenv.3 getenv.3 putenv.3
|
||||
MLINKS+=qsort.3 heapsort.3 qsort.3 mergesort.3
|
||||
|
|
|
|||
|
|
@ -0,0 +1,66 @@
|
|||
.\" Copyright (c) 1990, 1991 The Regents of the University of California.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" This code is derived from software contributed to Berkeley by
|
||||
.\" Chris Torek and the American National Standards Committee X3,
|
||||
.\" on Information Processing Systems.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\" 3. All advertising materials mentioning features or use of this software
|
||||
.\" must display the following acknowledgement:
|
||||
.\" This product includes software developed by the University of
|
||||
.\" California, Berkeley and its contributors.
|
||||
.\" 4. Neither the name of the University nor the names of its contributors
|
||||
.\" may be used to endorse or promote products derived from this software
|
||||
.\" without specific prior written permission.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" from: @(#)qdiv.3 5.3 (Berkeley) 6/29/91
|
||||
.\" $Id: qdiv.3,v 1.1 1995/03/21 23:12:37 jtc Exp $
|
||||
.\"
|
||||
.Dd June 29, 1991
|
||||
.Dt LDIV 3
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm qdiv
|
||||
.Nd return quotient and remainder from division
|
||||
.Sh SYNOPSIS
|
||||
.Fd #include <stdlib.h>
|
||||
.Ft qdiv_t
|
||||
.Fn qdiv "quad_t num" "quad_t denom"
|
||||
.Sh DESCRIPTION
|
||||
The
|
||||
.Fn qdiv
|
||||
function
|
||||
computes the value
|
||||
.Ar num/denom
|
||||
and returns the quotient and remainder in a structure named
|
||||
.Ar qdiv_t
|
||||
that contains two
|
||||
.Em quad integer
|
||||
members named
|
||||
.Ar quot
|
||||
and
|
||||
.Ar rem .
|
||||
.Sh SEE ALSO
|
||||
.Xr div 3 ,
|
||||
.Xr ldiv 3 ,
|
||||
.Xr math 3
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
/*
|
||||
* Copyright (c) 1990 Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* Chris Torek.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#if defined(LIBC_SCCS) && !defined(lint)
|
||||
/*static char *sccsid = "from: @(#)ldiv.c 5.2 (Berkeley) 4/16/91";*/
|
||||
static char *rcsid = "$Id: qdiv.c,v 1.1 1995/03/21 23:12:38 jtc Exp $";
|
||||
#endif /* LIBC_SCCS and not lint */
|
||||
|
||||
#include <stdlib.h> /* qdiv_t */
|
||||
|
||||
qdiv_t
|
||||
qdiv(num, denom)
|
||||
quad_t num, denom;
|
||||
{
|
||||
qdiv_t r;
|
||||
|
||||
/* see div.c for comments */
|
||||
|
||||
r.quot = num / denom;
|
||||
r.rem = num % denom;
|
||||
if (num >= 0 && r.rem < 0) {
|
||||
r.quot++;
|
||||
r.rem -= denom;
|
||||
}
|
||||
return (r);
|
||||
}
|
||||
Loading…
Reference in New Issue