freebsd-dev/lib/msun/man/floor.3

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.\" Copyright (c) 1985, 1991 The Regents of the University of California.
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.\" from: @(#)floor.3 6.5 (Berkeley) 4/19/91
1999-08-28 00:22:10 +00:00
.\" $FreeBSD$
.\"
.Dd March 10, 1994
.Dt FLOOR 3
.Os
.Sh NAME
.Nm floor ,
.Nm floorf
.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"
.Sh DESCRIPTION
The
.Fn floor
and the
.Fn floorf
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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 ,
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.Xr math 3 ,
.Xr rint 3
.Sh STANDARDS
The
.Fn floor
function conforms to
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.St -isoC .