minix/lib/libm/man/trunc.3
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

79 lines
2.3 KiB
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.\" $NetBSD: trunc.3,v 1.7 2013/11/13 22:11:52 wiz Exp $
.\"
.\" Copyright (c) 2004, 2005 David Schultz <das@FreeBSD.org>
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" 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
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" $FreeBSD: src/lib/msun/man/trunc.3,v 1.3 2005/06/15 19:04:04 ru Exp $
.\"
.Dd November 13, 2013
.Dt TRUNC 3
.Os
.Sh NAME
.Nm trunc ,
.Nm truncf ,
.Nm truncl
.Nd "nearest integral value with magnitude less than or equal to |x|"
.Sh LIBRARY
.Lb libm
.Sh SYNOPSIS
.In math.h
.Ft double
.Fn trunc "double x"
.Ft float
.Fn truncf "float x"
.Ft "long double"
.Fn truncl "long double x"
.Sh DESCRIPTION
The
.Fn trunc ,
.Fn truncf ,
and
.Fn truncl
functions return the nearest integral value with magnitude less than
or equal to
.Pf | Fa x Ns | .
They are equivalent to
.Fn rint ,
.Fn rintf ,
and
.Fn rintl
respectively, in the
.Dv FP_RZ
rounding mode.
.Sh SEE ALSO
.Xr ceil 3 ,
.Xr floor 3 ,
.Xr fpsetround 3 ,
.Xr math 3 ,
.Xr nextafter 3 ,
.Xr rint 3 ,
.Xr round 3
.Sh STANDARDS
The
.Fn trunc ,
.Fn truncf ,
and
.Fn truncl
functions conform to
.St -isoC-99 .