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Collect also the division functions to single place, div(3).

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This commit is contained in:
jruoho 2011-04-13 07:12:52 +00:00
parent 19606f522d
commit b29fd93227
5 changed files with 46 additions and 248 deletions
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9
lib/libc/stdlib/Makefile.inc
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@ -1,4 +1,4 @@
# $NetBSD: Makefile.inc,v 1.76 2011/04/13 06:56:50 jruoho Exp $ # $NetBSD: Makefile.inc,v 1.77 2011/04/13 07:12:52 jruoho Exp $
# from: @(#)Makefile.inc 8.3 (Berkeley) 2/4/95 # from: @(#)Makefile.inc 8.3 (Berkeley) 2/4/95
# stdlib sources # stdlib sources
@ -43,9 +43,9 @@ MAN+= a64l.3 abort.3 abs.3 alloca.3 atexit.3 atof.3 atoi.3 atol.3 atoll.3 \
exit.3 \ exit.3 \
getenv.3 getopt.3 getopt_long.3 getsubopt.3 grantpt.3 \ getenv.3 getopt.3 getopt_long.3 getsubopt.3 grantpt.3 \
hcreate.3 \ hcreate.3 \
imaxdiv.3 insque.3 \ insque.3 \
jemalloc.3 \ jemalloc.3 \
ldiv.3 lldiv.3 lsearch.3 \ lsearch.3 \
malloc.3 memory.3 mi_vector_hash.3 \ malloc.3 memory.3 mi_vector_hash.3 \
posix_memalign.3 posix_openpt.3 ptsname.3 \ posix_memalign.3 posix_openpt.3 ptsname.3 \
qabs.3 qdiv.3 qsort.3 \ qabs.3 qdiv.3 qsort.3 \
@ -59,6 +59,9 @@ MLINKS+=a64l.3 l64a_r.3
MLINKS+=abs.3 labs.3 \ MLINKS+=abs.3 labs.3 \
abs.3 llabs.3 \ abs.3 llabs.3 \
abs.3 imaxabs.3 abs.3 imaxabs.3
MLINKS+=div.3 ldiv.3 \
div.3 lldiv.3 \
div.3 imaxdiv.3
MLINKS+=getenv.3 setenv.3 getenv.3 unsetenv.3 getenv.3 putenv.3 MLINKS+=getenv.3 setenv.3 getenv.3 unsetenv.3 getenv.3 putenv.3
MLINKS+=getenv.3 getenv_r.3 MLINKS+=getenv.3 getenv_r.3
MLINKS+=hcreate.3 hdestroy.3 hcreate.3 hsearch.3 MLINKS+=hcreate.3 hdestroy.3 hcreate.3 hsearch.3

64
lib/libc/stdlib/div.3
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@ -1,4 +1,4 @@
.\" $NetBSD: div.3,v 1.12 2008/08/04 21:29:27 matt Exp $ .\" $NetBSD: div.3,v 1.13 2011/04/13 07:12:52 jruoho Exp $
.\" .\"
.\" Copyright (c) 1990, 1991, 1993 .\" Copyright (c) 1990, 1991, 1993
.\" The Regents of the University of California. All rights reserved. .\" The Regents of the University of California. All rights reserved.
@ -31,41 +31,57 @@
.\" .\"
.\" from: @(#)div.3 8.1 (Berkeley) 6/4/93 .\" from: @(#)div.3 8.1 (Berkeley) 6/4/93
.\" .\"
.Dd June 4, 1993 .Dd April 13, 2011
.Dt DIV 3 .Dt DIV 3
.Os .Os
.Sh NAME .Sh NAME
.Nm div .Nm div ,
.Nd return quotient and remainder from division .Nm ldiv ,
.Nm lldiv ,
.Nm imaxdiv
.Nd quotient and remainder from division
.Sh LIBRARY .Sh LIBRARY
.Lb libc .Lb libc
.Sh SYNOPSIS .Sh SYNOPSIS
.In stdlib.h .In stdlib.h
.Ft div_t .Ft div_t
.Fn div "int num" "int denom" .Fn div "int num" "int denom"
.Ft ldiv_t
.Fn ldiv "long int num" "long int denom"
.Ft lldiv_t
.Fn lldiv "long long int num" "long long int denom"
.In inttypes.h
.Ft imaxdiv_t
.Fn imaxdiv "intmax_t num" "intmax_t denom"
.Sh DESCRIPTION .Sh DESCRIPTION
The These functions compute the value of
.Fn div .Fa num / denom
function and return the quotient and remainder in a specific divison structure.
computes the value The functions differ only with respect to the type of the return value and
.Fa num/denom the parameters.
and returns the quotient and remainder in a structure named .Pp
.Fa div_t The returned structure always contains two members named
that contains two .Vt quot
.Em int
members named
.Fa quot
and and
.Fa rem . .Vt rem ,
denoting the quotient and the remainder.
The type of these correspond with the underlying type of the function.
.Sh EXAMPLES
The following example demonstrate the basic usage of the functions.
.Bd -literal -offset indent
div_t d;
int a = 4321;
int b = 1234;
d = div(a, b);
(void)printf(\*[q]%d %d\en\*[q], d.quot, d.rem);
.Ed
.Sh SEE ALSO .Sh SEE ALSO
.Xr imaxdiv 3 , .Xr fast_divide32 3 ,
.Xr ldiv 3 ,
.Xr lldiv 3 ,
.Xr math 3 , .Xr math 3 ,
.Xr qdiv 3 .Xr qdiv 3
.Sh STANDARDS .Sh STANDARDS
The All described functions conform to
.Fn div .St -isoC-99 .
function
conforms to
.St -ansiC .

75
lib/libc/stdlib/imaxdiv.3
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@ -1,75 +0,0 @@
.\" $NetBSD: imaxdiv.3,v 1.1 2008/08/04 21:29:27 matt Exp $
.\"
.\" Copyright (c) 1990, 1991, 1993
.\" 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. 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: @(#)ldiv.3 8.1 (Berkeley) 6/4/93
.\"
.Dd March 6, 2000
.Dt IMAXDIV 3
.Os
.Sh NAME
.Nm imaxdiv
.Nd return quotient and remainder from division
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In inttypes.h
.Ft imaxdiv_t
.Fn imaxdiv "intmax_t num" "intmax_t denom"
.Sh DESCRIPTION
The
.Fn imaxdiv
function
divides
.Ar num
by
.Ar denom
and returns the resulting quotient and remainder in a structure named
.Ar imaxdiv_t
that contains two
.Em imaxint_t
members named
.Ar quot
and
.Ar rem .
.Sh SEE ALSO
.Xr div 3 ,
.Xr ldiv 3 ,
.Xr lldiv 3 ,
.Xr math 3 ,
.Xr qdiv 3
.Sh STANDARDS
The
.Fn imaxdiv
function
conforms to
.St -isoC-99 .

73
lib/libc/stdlib/ldiv.3
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@ -1,73 +0,0 @@
.\" $NetBSD: ldiv.3,v 1.13 2008/08/04 21:29:27 matt Exp $
.\"
.\" Copyright (c) 1990, 1991, 1993
.\" 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. 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: @(#)ldiv.3 8.1 (Berkeley) 6/4/93
.\"
.Dd June 4, 1993
.Dt LDIV 3
.Os
.Sh NAME
.Nm ldiv
.Nd return quotient and remainder from division
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In stdlib.h
.Ft ldiv_t
.Fn ldiv "long int num" "long int denom"
.Sh DESCRIPTION
The
.Fn ldiv
function
computes the value
.Ar num/denom
and returns the quotient and remainder in a structure named
.Ar ldiv_t
that contains two
.Em long integer
members named
.Ar quot
and
.Ar rem .
.Sh SEE ALSO
.Xr div 3 ,
.Xr imaxdiv 3 ,
.Xr lldiv 3 ,
.Xr math 3 ,
.Xr qdiv 3
.Sh STANDARDS
The
.Fn ldiv
function
conforms to
.St -ansiC .

73
lib/libc/stdlib/lldiv.3
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@ -1,73 +0,0 @@
.\" $NetBSD: lldiv.3,v 1.7 2008/08/04 21:29:27 matt Exp $
.\"
.\" Copyright (c) 1990, 1991, 1993
.\" 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. 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: @(#)ldiv.3 8.1 (Berkeley) 6/4/93
.\"
.Dd March 6, 2000
.Dt LLDIV 3
.Os
.Sh NAME
.Nm lldiv
.Nd return quotient and remainder from division
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In stdlib.h
.Ft lldiv_t
.Fn lldiv "long long int num" "long long int denom"
.Sh DESCRIPTION
The
.Fn lldiv
function
computes the value
.Ar num/denom
and returns the quotient and remainder in a structure named
.Ar lldiv_t
that contains two
.Em long long integer
members named
.Ar quot
and
.Ar rem .
.Sh SEE ALSO
.Xr div 3 ,
.Xr imaxdiv 3 ,
.Xr ldiv 3 ,
.Xr math 3 ,
.Xr qdiv 3
.Sh STANDARDS
The
.Fn lldiv
function
conforms to
.St -isoC-99 .