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diff --git a/libm/man/lround.3 b/libm/man/lround.3 new file mode 100644 index 0000000..d3e53c2 --- /dev/null +++ b/libm/man/lround.3 @@ -0,0 +1,112 @@ +.\" Copyright (c) 2005 David Schultz <das@FreeBSD.org> +.\" 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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. +.\" +.\" $FreeBSD: src/lib/msun/man/lround.3,v 1.4 2005/06/15 19:04:04 ru Exp $ +.\" +.Dd April 7, 2005 +.Dt LROUND 3 +.Os +.Sh NAME +.Nm llround , +.Nm llroundf , +.Nm llroundl , +.Nm lround , +.Nm lroundf , +.Nm lroundl +.Nd "convert to nearest integral value" +.Sh LIBRARY +.Lb libm +.Sh SYNOPSIS +.In math.h +.Ft "long long" +.Fn llround "double x" +.Ft "long long" +.Fn llroundf "float x" +.Ft "long long" +.Fn llroundl "long double x" +.Ft long +.Fn lround "double x" +.Ft long +.Fn lroundf "float x" +.Ft long +.Fn lroundl "long double x" +.Sh DESCRIPTION +The +.Fn lround +function returns the integer nearest to its argument +.Fa x , +rounding away from zero in halfway cases. +If the rounded result is too large to be represented as a +.Vt long +value, an invalid exception is raised and the return value is undefined. +Otherwise, if +.Fa x +is not an integer, +.Fn lround +may raise an inexact exception. +When the rounded result is representable as a +.Vt long , +the expression +.Fn lround x +is equivalent to +.Po Vt long Pc Ns Fn round x +(although the former may be more efficient). +.Pp +The +.Fn llround , +.Fn llroundf , +.Fn llroundl , +.Fn lroundf +and +.Fn lroundl +functions differ from +.Fn lround +only in their input and output types. +.Sh SEE ALSO +.Xr lrint 3 , +.Xr math 3 , +.Xr rint 3 , +.Xr round 3 +.Sh STANDARDS +The +.Fn llround , +.Fn llroundf , +.Fn llroundl , +.Fn lround , +.Fn lroundf , +and +.Fn lroundl +functions conform to +.St -isoC-99 . +.Sh HISTORY +The +.Vt float +and +.Vt double +versions of these routines first appeared in +.Fx 5.4 . +The +.Vt "long double" +versions appeared in +.Fx 6.0 . |