1/*===---- stdarg.h - Variable argument handling ----------------------------===
2 *
3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 * See https://llvm.org/LICENSE.txt for license information.
5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 *
7 *===-----------------------------------------------------------------------===
8 */
9
10/*
11 * This header is designed to be included multiple times. If any of the __need_
12 * macros are defined, then only that subset of interfaces are provided. This
13 * can be useful for POSIX headers that need to not expose all of stdarg.h, but
14 * need to use some of its interfaces. Otherwise this header provides all of
15 * the expected interfaces.
16 *
17 * When clang modules are enabled, this header is a textual header to support
18 * the multiple include behavior. As such, it doesn't directly declare anything
19 * so that it doesn't add duplicate declarations to all of its includers'
20 * modules.
21 */
22#if defined(__MVS__) && __has_include_next(<stdarg.h>)
23#undef __need___va_list
24#undef __need_va_list
25#undef __need_va_arg
26#undef __need___va_copy
27#undef __need_va_copy
28#include <__stdarg_header_macro.h>
29#include_next <stdarg.h>
30
31#else
32#if !defined(__need___va_list) && !defined(__need_va_list) && \
33 !defined(__need_va_arg) && !defined(__need___va_copy) && \
34 !defined(__need_va_copy)
35#define __need___va_list
36#define __need_va_list
37#define __need_va_arg
38#define __need___va_copy
39/* GCC always defines __va_copy, but does not define va_copy unless in c99 mode
40 * or -ansi is not specified, since it was not part of C90.
41 */
42#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
43 (defined(__cplusplus) && __cplusplus >= 201103L) || \
44 !defined(__STRICT_ANSI__)
45#define __need_va_copy
46#endif
47#include <__stdarg_header_macro.h>
48#endif
49
50#ifdef __need___va_list
51#include <__stdarg___gnuc_va_list.h>
52#undef __need___va_list
53#endif /* defined(__need___va_list) */
54
55#ifdef __need_va_list
56#include <__stdarg_va_list.h>
57#undef __need_va_list
58#endif /* defined(__need_va_list) */
59
60#ifdef __need_va_arg
61#include <__stdarg_va_arg.h>
62#undef __need_va_arg
63#endif /* defined(__need_va_arg) */
64
65#ifdef __need___va_copy
66#include <__stdarg___va_copy.h>
67#undef __need___va_copy
68#endif /* defined(__need___va_copy) */
69
70#ifdef __need_va_copy
71#include <__stdarg_va_copy.h>
72#undef __need_va_copy
73#endif /* defined(__need_va_copy) */
74
75#endif /* __MVS__ */