f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
88 lines
2.9 KiB
Groff
88 lines
2.9 KiB
Groff
.\" $NetBSD: div.3,v 1.14 2011/05/03 09:36:24 wiz Exp $
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.\"
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.\" Copyright (c) 1990, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Chris Torek.
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)div.3 8.1 (Berkeley) 6/4/93
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.\"
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.Dd April 13, 2011
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.Dt DIV 3
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.Os
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.Sh NAME
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.Nm div ,
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.Nm ldiv ,
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.Nm lldiv ,
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.Nm imaxdiv
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.Nd quotient and remainder from division
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In stdlib.h
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.Ft div_t
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.Fn div "int num" "int denom"
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.Ft ldiv_t
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.Fn ldiv "long int num" "long int denom"
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.Ft lldiv_t
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.Fn lldiv "long long int num" "long long int denom"
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.In inttypes.h
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.Ft imaxdiv_t
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.Fn imaxdiv "intmax_t num" "intmax_t denom"
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.Sh DESCRIPTION
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These functions compute the value of
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.Fa num / denom
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and return the quotient and remainder in a specific divison structure.
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The functions differ only with respect to the type of the return value and
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the parameters.
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.Pp
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The returned structure always contains two members named
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.Vt quot
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and
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.Vt rem ,
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denoting the quotient and the remainder.
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The type of these correspond with the underlying type of the function.
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.Sh EXAMPLES
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The following example demonstrate the basic usage of the functions.
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.Bd -literal -offset indent
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div_t d;
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int a = 4321;
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int b = 1234;
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d = div(a, b);
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(void)printf("%d %d\en", d.quot, d.rem);
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.Ed
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.Sh SEE ALSO
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.Xr fast_divide32 3 ,
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.Xr math 3 ,
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.Xr qdiv 3
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.Sh STANDARDS
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All described functions conform to
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.St -isoC-99 .
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