0dc9e0996a
As the current libc includes a libm implementation, with the new libc this is needed. Unneeded (for the moment) archs have been removed.
101 lines
2.6 KiB
Groff
101 lines
2.6 KiB
Groff
.\" Copyright (c) 2004 David Schultz <das@FreeBSD.org>
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.\" All rights reserved.
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.\"
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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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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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.\" $FreeBSD: src/lib/msun/man/fmax.3,v 1.2 2005/01/14 09:12:05 ru Exp $
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.\" $NetBSD$
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.\"
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.Dd June 29, 2004
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.Dt FMAX 3
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.Os
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.Sh NAME
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.Nm fmax ,
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.Nm fmaxf ,
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.Nm fmaxl ,
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.Nm fmin ,
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.Nm fminf ,
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.Nm fminl
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.Nd floating-point maximum and minimum functions
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.Sh LIBRARY
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.Lb libm
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.Sh SYNOPSIS
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.In math.h
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.Ft double
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.Fn fmax "double x" "double y"
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.Ft float
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.Fn fmaxf "float x" "float y"
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.Ft "long double"
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.Fn fmaxl "long double x" "long double y"
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.Ft double
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.Fn fmin "double x" "double y"
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.Ft float
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.Fn fminf "float x" "float y"
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.Ft "long double"
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.Fn fminl "long double x" "long double y"
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.Sh DESCRIPTION
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The
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.Fn fmax ,
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.Fn fmaxf ,
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and
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.Fn fmaxl
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functions return the larger of
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.Fa x
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and
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.Fa y ,
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and likewise, the
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.Fn fmin ,
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.Fn fminf ,
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and
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.Fn fminl
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functions return the smaller of
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.Fa x
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and
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.Fa y .
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They treat
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.Li +0.0
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as being larger than
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.Li -0.0 .
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If one argument is an \*(Na, then the other argument is returned.
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If both arguments are \*(Nas, then the result is an \*(Na.
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These routines do not raise any floating-point exceptions.
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.Sh SEE ALSO
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.Xr fabs 3 ,
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.Xr fdim 3 ,
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.Xr math 3
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.Sh STANDARDS
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The
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.Fn fmax ,
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.Fn fmaxf ,
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.Fn fmaxl ,
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.Fn fmin ,
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.Fn fminf ,
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and
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.Fn fminl
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functions conform to
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.St -isoC-99 .
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.Sh HISTORY
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These routines first appeared in
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.Fx 5.3
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and
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.Nx 5.1 .
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