1.\" Copyright (c) 2004 David Schultz <das@FreeBSD.org> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: src/lib/msun/man/fmax.3,v 1.2 2005/01/14 09:12:05 ru Exp $ 26.\" $NetBSD: fmax.3,v 1.2 2010/03/08 02:35:50 snj Exp $ 27.\" 28.Dd June 29, 2004 29.Dt FMAX 3 30.Os 31.Sh NAME 32.Nm fmax , 33.Nm fmaxf , 34.Nm fmaxl , 35.Nm fmin , 36.Nm fminf , 37.Nm fminl 38.Nd floating-point maximum and minimum functions 39.Sh LIBRARY 40.Lb libm 41.Sh SYNOPSIS 42.In math.h 43.Ft double 44.Fn fmax "double x" "double y" 45.Ft float 46.Fn fmaxf "float x" "float y" 47.Ft "long double" 48.Fn fmaxl "long double x" "long double y" 49.Ft double 50.Fn fmin "double x" "double y" 51.Ft float 52.Fn fminf "float x" "float y" 53.Ft "long double" 54.Fn fminl "long double x" "long double y" 55.Sh DESCRIPTION 56The 57.Fn fmax , 58.Fn fmaxf , 59and 60.Fn fmaxl 61functions return the larger of 62.Fa x 63and 64.Fa y , 65and likewise, the 66.Fn fmin , 67.Fn fminf , 68and 69.Fn fminl 70functions return the smaller of 71.Fa x 72and 73.Fa y . 74They treat 75.Li +0.0 76as being larger than 77.Li -0.0 . 78If one argument is an \*(Na, then the other argument is returned. 79If both arguments are \*(Nas, then the result is an \*(Na. 80These routines do not raise any floating-point exceptions. 81.Sh SEE ALSO 82.Xr fabs 3 , 83.Xr fdim 3 , 84.Xr math 3 85.Sh STANDARDS 86The 87.Fn fmax , 88.Fn fmaxf , 89.Fn fmaxl , 90.Fn fmin , 91.Fn fminf , 92and 93.Fn fminl 94functions conform to 95.St -isoC-99 . 96.Sh HISTORY 97These routines first appeared in 98.Fx 5.3 99and 100.Nx 5.1 . 101