xref: /titanic_51/usr/src/head/errno.h (revision a31148363f598def767ac48c5d82e1572e44b935)
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 1999-2003 Sun Microsystems, Inc.  All rights reserved.
28  * Use is subject to license terms.
29  */
30 
31 
32 #ifndef _ERRNO_H
33 #define	_ERRNO_H
34 
35 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.4.1.5 */
36 
37 /*
38  * Error codes
39  */
40 
41 #include <sys/errno.h>
42 
43 #ifdef	__cplusplus
44 extern "C" {
45 #endif
46 
47 #if defined(_LP64)
48 /*
49  * The symbols _sys_errlist and _sys_nerr are not visible in the
50  * LP64 libc.  Use strerror(3C) instead.
51  */
52 #endif /* _LP64 */
53 
54 #if defined(_REENTRANT) || defined(_TS_ERRNO) || _POSIX_C_SOURCE - 0 >= 199506L
55 extern int *___errno();
56 #define	errno (*(___errno()))
57 #else
58 extern int errno;
59 /* ANSI C++ requires that errno be a macro */
60 #if __cplusplus >= 199711L
61 #define	errno errno
62 #endif
63 #endif	/* defined(_REENTRANT) || defined(_TS_ERRNO) */
64 
65 #ifdef	__cplusplus
66 }
67 #endif
68 
69 #endif	/* _ERRNO_H */
70