1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include "quadint.h"
30
31 #pragma weak __floatdidf = ___floatdidf
32
33 /*
34 * Convert a longlong_t to a double-precision floating point value.
35 */
36 double
___floatdidf(longlong_t a)37 ___floatdidf(longlong_t a)
38 {
39 union uu aa;
40 double d;
41
42 aa.q = a;
43 d = aa.sl[H];
44 d *= (1 << HALF_BITS);
45 d *= (1 << HALF_BITS);
46 d += aa.ul[L];
47
48 return (d);
49 }
50