84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
81 lines
2.3 KiB
Groff
81 lines
2.3 KiB
Groff
.\" $NetBSD: pow.3,v 1.1 2011/09/17 10:51:53 jruoho Exp $
|
|
.\"
|
|
.\" Copyright (c) 2011 Jukka Ruohonen <jruohonen@iki.fi>
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" 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.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
.\"
|
|
.Dd September 13, 2011
|
|
.Dt POW 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm pow ,
|
|
.Nm powf
|
|
.Nd power functions
|
|
.Sh LIBRARY
|
|
.Lb libm
|
|
.Sh SYNOPSIS
|
|
.In math.h
|
|
.Ft double
|
|
.Fn pow "double x" "double y"
|
|
.Ft float
|
|
.Fn powf "float x" "float y"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn pow
|
|
family of functions return
|
|
.Fa x
|
|
raised to the power of
|
|
.Fa y .
|
|
.Pp
|
|
If
|
|
.Fa x
|
|
is negative and
|
|
.Fa y
|
|
is not an integer, the global variable
|
|
.Va errno
|
|
is set to
|
|
.Er EDOM ,
|
|
and on
|
|
.Tn VAX
|
|
a reserved operand fault is generated.
|
|
A portable application should nevertheless ensure that
|
|
.Fa y
|
|
is an integer value whenever
|
|
.Fa x
|
|
is negative.
|
|
.Sh RETURN VALUES
|
|
.\"
|
|
.\" XXX: List also the special return values?
|
|
.\"
|
|
Upon successful completion, the described functions return
|
|
.Fa x^y .
|
|
.Sh SEE ALSO
|
|
.Xr exp 3 ,
|
|
.Xr log 3
|
|
.Sh STANDARDS
|
|
The described functions conform to
|
|
.St -isoC-99 .
|
|
.Sh HISTORY
|
|
The history of the power functions dates back to
|
|
.At v6 .
|