xref: /illumos-gate/usr/src/lib/libm/common/m9x/nanl.c (revision 1ec68d336ba97cd53f46053ac10401d16014d075)
1*25c28e83SPiotr Jasiukajtis /*
2*25c28e83SPiotr Jasiukajtis  * CDDL HEADER START
3*25c28e83SPiotr Jasiukajtis  *
4*25c28e83SPiotr Jasiukajtis  * The contents of this file are subject to the terms of the
5*25c28e83SPiotr Jasiukajtis  * Common Development and Distribution License (the "License").
6*25c28e83SPiotr Jasiukajtis  * You may not use this file except in compliance with the License.
7*25c28e83SPiotr Jasiukajtis  *
8*25c28e83SPiotr Jasiukajtis  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*25c28e83SPiotr Jasiukajtis  * or http://www.opensolaris.org/os/licensing.
10*25c28e83SPiotr Jasiukajtis  * See the License for the specific language governing permissions
11*25c28e83SPiotr Jasiukajtis  * and limitations under the License.
12*25c28e83SPiotr Jasiukajtis  *
13*25c28e83SPiotr Jasiukajtis  * When distributing Covered Code, include this CDDL HEADER in each
14*25c28e83SPiotr Jasiukajtis  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*25c28e83SPiotr Jasiukajtis  * If applicable, add the following below this CDDL HEADER, with the
16*25c28e83SPiotr Jasiukajtis  * fields enclosed by brackets "[]" replaced with your own identifying
17*25c28e83SPiotr Jasiukajtis  * information: Portions Copyright [yyyy] [name of copyright owner]
18*25c28e83SPiotr Jasiukajtis  *
19*25c28e83SPiotr Jasiukajtis  * CDDL HEADER END
20*25c28e83SPiotr Jasiukajtis  */
21*25c28e83SPiotr Jasiukajtis 
22*25c28e83SPiotr Jasiukajtis /*
23*25c28e83SPiotr Jasiukajtis  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
24*25c28e83SPiotr Jasiukajtis  */
25*25c28e83SPiotr Jasiukajtis /*
26*25c28e83SPiotr Jasiukajtis  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
27*25c28e83SPiotr Jasiukajtis  * Use is subject to license terms.
28*25c28e83SPiotr Jasiukajtis  */
29*25c28e83SPiotr Jasiukajtis 
30*25c28e83SPiotr Jasiukajtis #pragma weak nanl = __nanl
31*25c28e83SPiotr Jasiukajtis 
32*25c28e83SPiotr Jasiukajtis #include "libm.h"
33*25c28e83SPiotr Jasiukajtis 
34*25c28e83SPiotr Jasiukajtis #if defined(__sparc)
35*25c28e83SPiotr Jasiukajtis 
36*25c28e83SPiotr Jasiukajtis static const union {
37*25c28e83SPiotr Jasiukajtis 	unsigned i[4];
38*25c28e83SPiotr Jasiukajtis 	long double ld;
39*25c28e83SPiotr Jasiukajtis } __nanl_union = { 0x7fffffff, 0xffffffff, 0xffffffff, 0xffffffff };
40*25c28e83SPiotr Jasiukajtis 
41*25c28e83SPiotr Jasiukajtis #elif defined(__x86)
42*25c28e83SPiotr Jasiukajtis 
43*25c28e83SPiotr Jasiukajtis static const union {
44*25c28e83SPiotr Jasiukajtis 	unsigned i[3];
45*25c28e83SPiotr Jasiukajtis 	long double ld;
46*25c28e83SPiotr Jasiukajtis } __nanl_union = { 0xffffffff, 0xffffffff, 0x7fff };
47*25c28e83SPiotr Jasiukajtis 
48*25c28e83SPiotr Jasiukajtis #else
49*25c28e83SPiotr Jasiukajtis #error Unknown architecture
50*25c28e83SPiotr Jasiukajtis #endif
51*25c28e83SPiotr Jasiukajtis 
52*25c28e83SPiotr Jasiukajtis /* ARGSUSED0 */
53*25c28e83SPiotr Jasiukajtis long double
__nanl(const char * c)54*25c28e83SPiotr Jasiukajtis __nanl(const char *c) {
55*25c28e83SPiotr Jasiukajtis 	return (__nanl_union.ld);
56*25c28e83SPiotr Jasiukajtis }
57