xref: /openbsd/sys/sys/stdarg.h (revision d415bd75)
1 /*	$OpenBSD: stdarg.h,v 1.10 2020/07/21 23:09:00 daniel Exp $ */
2 /*
3  * Copyright (c) 2003, 2004  Marc espie <espie@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #ifndef _STDARG_H_
19 #define _STDARG_H_
20 
21 #include <sys/cdefs.h>
22 
23 /* Define __gnuc_va_list.  */
24 
25 #ifndef __GNUC_VA_LIST
26 #define __GNUC_VA_LIST
27 typedef __builtin_va_list __gnuc_va_list;
28 #endif
29 
30 /* Note that the type used in va_arg is supposed to match the
31    actual type **after default promotions**.
32    Thus, va_arg (..., short) is not valid.  */
33 
34 #define va_start(ap, last)	__builtin_va_start((ap), last)
35 #define va_end(ap)		__builtin_va_end((ap))
36 #define va_arg(ap, type)	__builtin_va_arg((ap), type)
37 #define __va_copy(dst, src)	__builtin_va_copy((dst),(src))
38 
39 typedef __gnuc_va_list va_list;
40 
41 #if __ISO_C_VISIBLE >= 1999
42 #define	va_copy(dst, src)	__va_copy((dst), (src))
43 #endif
44 
45 #endif /* not _STDARG_H_ */
46