ipiq: Add simple IPI latency measure sysctls (2)
[dragonfly.git] / lib / libm / man / scalbn.3
CommitLineData
8cecb502 1.\" Copyright (c) 1985, 1991 Regents of the University of California.
74dfd0cf
JM
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.
9.\" 2. Redistributions in binary form must reproduce the above copyright
10.\" notice, this list of conditions and the following disclaimer in the
11.\" documentation and/or other materials provided with the distribution.
dc71b7ab 12.\" 3. Neither the name of the University nor the names of its contributors
8cecb502
JM
13.\" may be used to endorse or promote products derived from this software
14.\" without specific prior written permission.
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26.\" SUCH DAMAGE.
74dfd0cf 27.\"
8cecb502 28.\" from: @(#)ieee.3 6.4 (Berkeley) 5/6/91
6ff43c94 29.\" $FreeBSD: head/lib/msun/man/scalbn.3 165906 2007-01-09 01:02:06Z imp $
74dfd0cf 30.\"
8cecb502 31.Dd December 21, 2011
74dfd0cf
JM
32.Dt SCALBN 3
33.Os
34.Sh NAME
8cecb502
JM
35.Nm scalbln ,
36.Nm scalblnf ,
37.Nm scalblnl ,
74dfd0cf
JM
38.Nm scalbn ,
39.Nm scalbnf ,
6ff43c94 40.Nm scalbnl
8cecb502 41.Nd adjust exponent
74dfd0cf
JM
42.Sh LIBRARY
43.Lb libm
44.Sh SYNOPSIS
45.In math.h
46.Ft double
8cecb502
JM
47.Fn scalbln "double x" "long n"
48.Ft float
49.Fn scalblnf "float x" "long n"
50.Ft long double
51.Fn scalblnl "long double x" "long n"
52.Ft double
74dfd0cf
JM
53.Fn scalbn "double x" "int n"
54.Ft float
55.Fn scalbnf "float x" "int n"
56.Ft long double
57.Fn scalbnl "long double x" "int n"
58.Sh DESCRIPTION
8cecb502
JM
59These routines return
60.Fa x Ns \(**(2** Ns Fa n )
61computed by exponent manipulation.
74dfd0cf 62.Sh SEE ALSO
6ff43c94 63.Xr ieee 3 ,
74dfd0cf
JM
64.Xr math 3
65.Sh STANDARDS
8cecb502
JM
66These routines conform to
67.St -isoC-99 ,
68and they implement the Scalb function recommended by
69.St -ieee754 .
70.Sh HISTORY
71The
72.Fn scalbn
73and
74.Fn scalbnf
75functions appeared in
76.Bx 4.3
77and
78.Fx 2.0 ,
79respectively.
80The
81.Fn scalbln ,
82.Fn scalblnf ,
6ff43c94 83.Fn scalblnl ,
8cecb502
JM
84and
85.Fn scalbln
6ff43c94
PA
86functions first appeared in
87in
8cecb502 88.Dx 2.13 .