129bf6af8SDavid Schultz.\" Copyright (c) 1985, 1991 Regents of the University of California. 229bf6af8SDavid Schultz.\" All rights reserved. 329bf6af8SDavid Schultz.\" 429bf6af8SDavid Schultz.\" Redistribution and use in source and binary forms, with or without 529bf6af8SDavid Schultz.\" modification, are permitted provided that the following conditions 629bf6af8SDavid Schultz.\" are met: 729bf6af8SDavid Schultz.\" 1. Redistributions of source code must retain the above copyright 829bf6af8SDavid Schultz.\" notice, this list of conditions and the following disclaimer. 929bf6af8SDavid Schultz.\" 2. Redistributions in binary form must reproduce the above copyright 1029bf6af8SDavid Schultz.\" notice, this list of conditions and the following disclaimer in the 1129bf6af8SDavid Schultz.\" documentation and/or other materials provided with the distribution. 12*fbbd9655SWarner Losh.\" 3. Neither the name of the University nor the names of its contributors 1329bf6af8SDavid Schultz.\" may be used to endorse or promote products derived from this software 1429bf6af8SDavid Schultz.\" without specific prior written permission. 1529bf6af8SDavid Schultz.\" 1629bf6af8SDavid Schultz.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1729bf6af8SDavid Schultz.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1829bf6af8SDavid Schultz.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1929bf6af8SDavid Schultz.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2029bf6af8SDavid Schultz.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2129bf6af8SDavid Schultz.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2229bf6af8SDavid Schultz.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2329bf6af8SDavid Schultz.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2429bf6af8SDavid Schultz.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2529bf6af8SDavid Schultz.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2629bf6af8SDavid Schultz.\" SUCH DAMAGE. 2729bf6af8SDavid Schultz.\" 2829bf6af8SDavid Schultz.\" from: @(#)ieee.3 6.4 (Berkeley) 5/6/91 2929bf6af8SDavid Schultz.\" $FreeBSD$ 3029bf6af8SDavid Schultz.\" 31388bf3b6SDavid Schultz.Dd March 4, 2005 3229bf6af8SDavid Schultz.Dt SCALBN 3 3329bf6af8SDavid Schultz.Os 3429bf6af8SDavid Schultz.Sh NAME 3529bf6af8SDavid Schultz.Nm scalbln , 3629bf6af8SDavid Schultz.Nm scalblnf , 37388bf3b6SDavid Schultz.Nm scalblnl , 3829bf6af8SDavid Schultz.Nm scalbn , 39388bf3b6SDavid Schultz.Nm scalbnf , 40388bf3b6SDavid Schultz.Nm scalbnl 4129bf6af8SDavid Schultz.Nd adjust exponent 4229bf6af8SDavid Schultz.Sh LIBRARY 4329bf6af8SDavid Schultz.Lb libm 4429bf6af8SDavid Schultz.Sh SYNOPSIS 4529bf6af8SDavid Schultz.In math.h 4629bf6af8SDavid Schultz.Ft double 4729bf6af8SDavid Schultz.Fn scalbln "double x" "long n" 4829bf6af8SDavid Schultz.Ft float 4929bf6af8SDavid Schultz.Fn scalblnf "float x" "long n" 50388bf3b6SDavid Schultz.Ft long double 51388bf3b6SDavid Schultz.Fn scalblnl "long double x" "long n" 5229bf6af8SDavid Schultz.Ft double 5329bf6af8SDavid Schultz.Fn scalbn "double x" "int n" 5429bf6af8SDavid Schultz.Ft float 5529bf6af8SDavid Schultz.Fn scalbnf "float x" "int n" 56388bf3b6SDavid Schultz.Ft long double 57388bf3b6SDavid Schultz.Fn scalbnl "long double x" "int n" 5829bf6af8SDavid Schultz.Sh DESCRIPTION 59388bf3b6SDavid SchultzThese routines return 6029bf6af8SDavid Schultz.Fa x Ns \(**(2** Ns Fa n ) 6129bf6af8SDavid Schultzcomputed by exponent manipulation. 6229bf6af8SDavid Schultz.Sh SEE ALSO 6329bf6af8SDavid Schultz.Xr ieee 3 , 6429bf6af8SDavid Schultz.Xr math 3 6529bf6af8SDavid Schultz.Sh STANDARDS 6629bf6af8SDavid SchultzThese routines conform to 6729bf6af8SDavid Schultz.St -isoC-99 , 6829bf6af8SDavid Schultzand they implement the Scalb function recommended by 6929bf6af8SDavid Schultz.St -ieee754 . 7029bf6af8SDavid Schultz.Sh HISTORY 7129bf6af8SDavid SchultzThe 7229bf6af8SDavid Schultz.Fn scalbn 7329bf6af8SDavid Schultzand 7429bf6af8SDavid Schultz.Fn scalbnf 7529bf6af8SDavid Schultzfunctions appeared in 7629bf6af8SDavid Schultz.Bx 4.3 7729bf6af8SDavid Schultzand 7829bf6af8SDavid Schultz.Fx 2.0 , 7929bf6af8SDavid Schultzrespectively. 8029bf6af8SDavid SchultzThe 8129bf6af8SDavid Schultz.Fn scalbln 8229bf6af8SDavid Schultzand 8329bf6af8SDavid Schultz.Fn scalblnf 8429bf6af8SDavid Schultzfunctions first appeared in 85388bf3b6SDavid Schultz.Fx 5.3 , 86388bf3b6SDavid Schultzand 87388bf3b6SDavid Schultz.Fn scalblnl 88388bf3b6SDavid Schultzand 89388bf3b6SDavid Schultz.Fn scalbln 90388bf3b6SDavid Schultzin 9119797b22SJoel Dahl.Fx 6.0 . 92