mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
83 lines
2.6 KiB
Groff
83 lines
2.6 KiB
Groff
.\" Copyright (c) 1985, 1991 The Regents of the University of California.
|
|
.\" 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.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
.\"
|
|
.\" from: @(#)floor.3 6.5 (Berkeley) 4/19/91
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd January 13, 2005
|
|
.Dt FLOOR 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm floor ,
|
|
.Nm floorf ,
|
|
.Nm floorl
|
|
.Nd largest integral value less than or equal to x
|
|
.Sh LIBRARY
|
|
.Lb libm
|
|
.Sh SYNOPSIS
|
|
.In math.h
|
|
.Ft double
|
|
.Fn floor "double x"
|
|
.Ft float
|
|
.Fn floorf "float x"
|
|
.Ft "long double"
|
|
.Fn floorl "long double x"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn floor ,
|
|
.Fn floorf
|
|
and
|
|
.Fn floorl
|
|
functions return the largest integral value
|
|
less than or equal to
|
|
.Fa x ,
|
|
expressed as a floating-point number.
|
|
.Sh SEE ALSO
|
|
.Xr abs 3 ,
|
|
.Xr ceil 3 ,
|
|
.Xr fabs 3 ,
|
|
.Xr ieee 3 ,
|
|
.Xr math 3 ,
|
|
.Xr rint 3 ,
|
|
.Xr round 3 ,
|
|
.Xr trunc 3
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn floor
|
|
function conforms to
|
|
.St -isoC .
|
|
The
|
|
.Fn floorf
|
|
and
|
|
.Fn floorl
|
|
functions conform to
|
|
.St -isoC-99 .
|