expand.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.7 */
#ifdef uts
float
#else
/*
* For as long as ct is of type comp_t, and comp_t is defined to be of type
* unsigned short, the maximum value of ct will be 2^16-1 ie 65535. Based on
* this input value, the maximum value that expand() can return will therefore
* be 4292870144. A return type of ulong_t ensures we don't overflow.
*/
#endif
{
register e;
#ifdef uts
float f;
#else
ulong_t f;
#endif
f = ct & 017777;
while (e-- > 0)
#ifdef uts
f *= 8.0; /* can't shift a float */
#else
f <<=3;
#endif
return f;
}