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| author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:28:35 -0800 |
|---|---|---|
| committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:28:35 -0800 |
| commit | 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1 (patch) | |
| tree | 3be0c520fae17689bbf5584e1136fb820caef26f /libm/man/signbit.3 | |
| parent | 1767f908af327fa388b1c66883760ad851267013 (diff) | |
| download | bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.zip bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.tar.gz bionic-1dc9e472e19acfe6dc7f41e429236e7eef7ceda1.tar.bz2 | |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'libm/man/signbit.3')
| -rw-r--r-- | libm/man/signbit.3 | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/libm/man/signbit.3 b/libm/man/signbit.3 new file mode 100644 index 0000000..b749671 --- /dev/null +++ b/libm/man/signbit.3 @@ -0,0 +1,57 @@ +.\" Copyright (c) 2003 Mike Barcroft <mike@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/signbit.3,v 1.1 2004/07/19 08:16:10 das Exp $ +.\" +.Dd July 18, 2004 +.Dt SIGNBIT 3 +.Os +.Sh NAME +.Nm signbit +.Nd "determine whether a floating-point number's sign is negative" +.Sh LIBRARY +.Lb libm +.Sh SYNOPSIS +.In math.h +.Ft int +.Fn signbit "real-floating x" +.Sh DESCRIPTION +The +.Fn signbit +macro takes an argument of +.Fa x +and returns non-zero if the value of its sign is negative, otherwise 0. +.Sh SEE ALSO +.Xr fpclassify 3 , +.Xr math 3 +.Sh STANDARDS +The +.Fn signbit +macro conforms to +.St -isoC-99 . +.Sh HISTORY +The +.Fn signbit +macro was added in +.Fx 5.1 . |