1.\" $OpenBSD: fmax.3,v 1.2 2011/07/07 01:34:52 martynas Exp $ 2.\" 3.\" Copyright (c) 2004 David Schultz <das@FreeBSD.org> 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.\" $FreeBSD: src/lib/msun/man/fmax.3,v 1.2 2005/01/14 09:12:05 ru Exp $ 28.\" 29.Dd $Mdocdate: July 7 2011 $ 30.Dt FMAX 3 31.Os 32.Sh NAME 33.Nm fmax , 34.Nm fmaxf , 35.Nm fmaxl , 36.Nm fmin , 37.Nm fminf , 38.Nm fminl 39.Nd floating-point maximum and minimum functions 40.Sh SYNOPSIS 41.In math.h 42.Ft double 43.Fn fmax "double x" "double y" 44.Ft float 45.Fn fmaxf "float x" "float y" 46.Ft "long double" 47.Fn fmaxl "long double x" "long double y" 48.Ft double 49.Fn fmin "double x" "double y" 50.Ft float 51.Fn fminf "float x" "float y" 52.Ft "long double" 53.Fn fminl "long double x" "long double y" 54.Sh DESCRIPTION 55The 56.Fn fmax , 57.Fn fmaxf , 58and 59.Fn fmaxl 60functions return the larger of 61.Fa x 62and 63.Fa y , 64and likewise the 65.Fn fmin , 66.Fn fminf , 67and 68.Fn fminl 69functions return the smaller of 70.Fa x 71and 72.Fa y . 73They treat 74.Li +0.0 75as being larger than 76.Li -0.0 . 77If one argument is an \*(Na, then the other argument is returned. 78If both arguments are \*(Nas, then the result is an \*(Na. 79These routines do not raise any floating-point exceptions. 80.Sh SEE ALSO 81.Xr fabs 3 , 82.Xr fdim 3 83.Sh STANDARDS 84The 85.Fn fmax , 86.Fn fmaxf , 87.Fn fmaxl , 88.Fn fmin , 89.Fn fminf , 90and 91.Fn fminl 92functions conform to 93.St -isoC-99 . 94.Sh HISTORY 95These routines first appeared in 96.Ox 4.5 . 97