1/* $OpenBSD: varargs.h,v 1.4 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 _VARARGS_H_
19#define _VARARGS_H_
20
21/* These macros implement traditional (non-ANSI) varargs
22 for GNU C. */
23
24#define va_alist __builtin_va_alist
25
26#define __va_ellipsis ...
27
28/* ??? We don't process attributes correctly in K&R argument context. */
29typedef int __builtin_va_alist_t __attribute__((__mode__(__word__)));
30
31/* ??? It would be nice to get rid of the ellipsis here. It causes
32 current_function_varargs to be set in cc1. */
33#define va_dcl __builtin_va_alist_t __builtin_va_alist; ...
34
35/* Define __gnuc_va_list, just as in stdarg.h. */
36
37#ifndef __GNUC_VA_LIST
38#define __GNUC_VA_LIST
39typedef __builtin_va_list __gnuc_va_list;
40#endif
41
42#define va_start(v) __builtin_varargs_start((v))
43#define va_end __builtin_va_end
44#define va_arg __builtin_va_arg
45#define __va_copy(d,s) __builtin_va_copy((d),(s))
46
47/* Define va_list from __gnuc_va_list. */
48
49typedef __gnuc_va_list va_list;
50
51#endif /* _VARARGS_H_ */