xref: /titanic_41/usr/src/uts/common/sys/varargs.h (revision e4d060fb4c00d44cd578713eb9a921f594b733b8)
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) 1984, 1986, 1987, 1988, 1989 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	_SYS_VARARGS_H
32 #define	_SYS_VARARGS_H
33 
34 #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* UCB 4.1 83/05/03 */
35 
36 /*
37  * This header defines the Solaris system definitions for variable
38  * argument lists.  For the most part, it follows the definitions of
39  * ISO C 1999.  It does not follow the namespace rules for ISO C++
40  * 1998.  For legacy support, it also defines the pre-standard variable
41  * argument definitions.
42  *
43  * The varargs definitions within this header are defined in terms of
44  * implementation definitions.  These implementation definitions reside
45  * in <sys/va_impl.h>.  This organization enables protected use of
46  * the implementation by other standard headers without introducing
47  * names into the users' namespace.
48  */
49 
50 #include <sys/va_impl.h>
51 
52 #ifdef	__cplusplus
53 extern "C" {
54 #endif
55 
56 #ifndef	_VA_LIST
57 #define	_VA_LIST
58 typedef __va_list va_list;
59 #endif
60 
61 #if defined(__STDC__)
62 /*
63  * When __STDC__ is defined, this file provides stdarg semantics despite
64  * the name of the file.
65  */
66 
67 #define	va_start(list, name)	__va_start(list, name)
68 #define	va_arg(list, type)	__va_arg(list, type)
69 #define	va_copy(to, from)	__va_copy(to, from)
70 #define	va_end(list)		__va_end(list)
71 
72 #else	/* ! __STDC__ */
73 /*
74  * In the absence of __STDC__, this file provides traditional varargs
75  * semantics.
76  */
77 
78 #define	va_alist		__builtin_va_alist
79 #define	va_dcl			__va_alist_type va_alist;
80 #define	va_start(list)		__va_start(list, va_alist)
81 #define	va_arg(list, type)	__va_arg(list, type)
82 #define	va_copy(to, from)	__va_copy(to, from)
83 #define	va_end(list)		__va_end(list)
84 
85 #endif	/* __STDC__ */
86 
87 #ifdef	__cplusplus
88 }
89 #endif
90 
91 #endif	/* _SYS_VARARGS_H */
92