1/* $NetBSD: stdarg.h,v 1.7 2025/06/03 20:25:27 rillig Exp $ */
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93
32 */
33
34#ifndef _SYS_STDARG_H_
35#define _SYS_STDARG_H_
36
37#include <sys/cdefs.h>
38#include <sys/ansi.h>
39#include <sys/featuretest.h>
40
41#ifdef __lint__
42#define __builtin_next_arg(t) ((t) ? 0 : 0)
43#define __builtin_va_start(a, l) ((a) = (va_list)(void *)&(l))
44#define __builtin_va_arg(a, t) ((a) != 0 ? (t)0 : (t)0)
45#define __builtin_va_end(a) __nothing
46#define __builtin_va_copy(d, s) ((d) = (s))
47#elif !(__GNUC_PREREQ__(4, 5) || \
48 (__GNUC_PREREQ__(4, 4) && __GNUC_PATCHLEVEL__ > 2) || defined(__clang__))
49#define __builtin_va_start(ap, last) __builtin_stdarg_start((ap), (last))
50#endif
51
52#ifndef __VA_LIST_DECLARED
53typedef __va_list va_list;
54#define __VA_LIST_DECLARED
55#endif
56
57#define va_start(ap, last) __builtin_va_start((ap), (last))
58#define va_arg __builtin_va_arg
59#define va_end(ap) __builtin_va_end(ap)
60#define __va_copy(dest, src) __builtin_va_copy((dest), (src))
61
62#if !defined(_ANSI_SOURCE) && \
63 (defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
64 defined(_NETBSD_SOURCE))
65#define va_copy(dest, src) __va_copy((dest), (src))
66#endif
67
68#endif /* !_SYS_STDARG_H_ */