/*
* 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 (c) 1994-1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "quad.h"
/*
* _Q_ulltoq(x) returns (long double)x.
*/
union longdouble
_Q_ulltoq(unsigned long long x)
{
union longdouble z;
unsigned int e;
/* test for zero */
if (x == 0) {
QUAD_RETURN(Z);
}
/* find the most significant bit */
for (e = 63; (x & (1ll << e)) == 0; e--)
;
if (e > 48) {
Z.l.frac2 = x >> (e - 48);
Z.l.frac3 = x << (80 - e);
} else if (e > 16) {
Z.l.frac2 = x << (48 - e);
Z.l.frac3 = 0;
} else {
}
Z.l.frac4 = 0;
QUAD_RETURN(Z);
}