xref: /illumos-gate/usr/src/head/varargs.h (revision 9b9d39d2a32ff806d2431dbcc50968ef1e6d46b2)
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 #ifndef _VARARGS_H
32 #define	_VARARGS_H
33 
34 /*
35  * This header defines the pre-standard variable argument definitions.
36  * Programs using this header should migrate to using <stdarg.h>.
37  *
38  * The varargs definitions within this header are defined in terms of
39  * implementation definitions. These implementation definitions reside
40  * in <sys/va_impl.h>.  This organization enables protected use of
41  * the implementation by other standard headers without introducing
42  * names into the users' namespace.
43  */
44 
45 #include <sys/feature_tests.h>
46 #include <sys/va_impl.h>
47 
48 #ifdef	__cplusplus
49 extern "C" {
50 #endif
51 
52 #ifndef	_VA_LIST
53 #define	_VA_LIST
54 typedef __va_list va_list;
55 #endif
56 
57 #define	va_alist		__builtin_va_alist
58 #define	va_dcl			__va_alist_type va_alist;
59 #define	va_start(list)		__va_start(list, va_alist)
60 #define	va_arg(list, type)	__va_arg(list, type)
61 #define	va_end(list)		__va_end(list)
62 
63 /*
64  * va_copy is a Solaris extension to provide a portable way to perform
65  * a variable argument list ``bookmarking'' function.
66  */
67 #if defined(__EXTENSIONS__) || \
68 	(!defined(_STRICT_STDC) && !defined(__XOPEN_OR_POSIX))
69 
70 #define	va_copy(to, from)	__va_copy(to, from)
71 
72 #endif	/* defined(__EXTENSIONS__) || (!defined(_STRICT_STDC) && ... ) */
73 
74 #ifdef	__cplusplus
75 }
76 #endif
77 
78 #endif	/* _VARARGS_H */
79