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.\" $FreeBSD$ 26.\" 27.Dd June 29, 2004 28.Dt FMAX 3 29.Os 30.Sh NAME 31.Nm fmax , 32.Nm fmaxf , 33.Nm fmaxl , 34.Nm fmin , 35.Nm fminf , 36.Nm fminl 37.Nd floating-point maximum and minimum functions 38.Sh LIBRARY 39.Lb libm 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 . 73.Li +0.0 74is treated as being larger than 75.Li -0.0 . 76If one argument is an \*(Na, then the other argument is returned. 77If both arguments are \*(Nas, then the result is an \*(Na. 78These routines do not raise any floating-point exceptions. 79.Sh SEE ALSO 80.Xr fabs 3 , 81.Xr fdim 3 , 82.Xr math 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.Fx 5.3 . 97