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author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | a27d2baa0c1a2ec70f47ea9199b1dd6762c8a349 (patch) | |
tree | defd1cc07d16ad2f3b21154114e092d11c94c5bb /libm/man/round.3 | |
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Initial Contributionandroid-1.0
Diffstat (limited to 'libm/man/round.3')
-rw-r--r-- | libm/man/round.3 | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/libm/man/round.3 b/libm/man/round.3 new file mode 100644 index 0000000..b077d77 --- /dev/null +++ b/libm/man/round.3 @@ -0,0 +1,80 @@ +.\" Copyright (c) 2003, Steven G. Kargl +.\" 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 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. +.\" +.\" $FreeBSD: src/lib/msun/man/round.3,v 1.6 2005/06/15 19:04:04 ru Exp $ +.\" +.Dd April 7, 2005 +.Dt ROUND 3 +.Os +.Sh NAME +.Nm round , +.Nm roundf , +.Nm roundl +.Nd round to nearest integral value +.Sh LIBRARY +.Lb libm +.Sh SYNOPSIS +.In math.h +.Ft double +.Fn round "double x" +.Ft float +.Fn roundf "float x" +.Ft "long double" +.Fn roundl "long double x" +.Sh DESCRIPTION +The +.Fn round , +.Fn roundf , +and +.Fn roundl +functions return the nearest integral value to +.Fa x ; +if +.Fa x +lies halfway between two integral values, then these +functions return the integral value with the larger +absolute value (i.e., they round away from zero). +.Sh SEE ALSO +.Xr ceil 3 , +.Xr floor 3 , +.Xr ieee 3 , +.Xr lrint 3 , +.Xr lround 3 , +.Xr math 3 , +.Xr rint 3 , +.Xr trunc 3 +.Sh STANDARDS +These functions conform to +.St -isoC-99 . +.Sh HISTORY +The +.Fn round +and +.Fn roundf +functions appeared in +.Fx 5.3 . +The +.Fn roundl +function appeared in +.Fx 6.0 . |