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/*	Copyright (c) 1988 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25
26/*
27 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
28 * Use is subject to license terms.
29 */
30
31#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.8	*/
32
33/*
34 * contains the definitions
35 * of the global constant __huge_val used
36 * by the floating point environment
37 */
38
39/*
40 * XXX - the preferred fix for this sits in delta 1.12.
41 * But the following code is the only way to fix this given the lint and cc
42 * we use now.  Newer compilers and lints should fix this so we can
43 * put delta 1.12 back.  See 6208626.
44 */
45
46#include <sys/feature_tests.h>
47
48#undef _STDC_C99	/* to force the definition of '_h_val' */
49#undef __C99FEATURES__	/* to force the definition of '_h_val' */
50
51#include <math.h>		/* for '_h_val' */
52
53/* IEEE infinity */
54const _h_val __huge_val =
55#if defined(_LP64)			/* long == long long */
56	{ 0x7ff0000000000000ull };
57#elif defined(_LONG_LONG_HTOL)		/* like 32-bit sparc */
58	{ 0x7ff00000ul, 0x00000000ul };
59#elif defined(_LONG_LONG_LTOH)		/* like 32-bit x86 */
60	{ 0x00000000ul, 0x7ff00000ul };
61#else
62#error "none of { _LP64 _LONG_LONG_HTOL _LONG_LONG_LTOH } is defined"
63#endif
64