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#ifndef __STDARG_H 11 12#ifndef __GNUC_VA_LIST 13#define __GNUC_VA_LIST 14typedef __builtin_va_list __gnuc_va_list; 15#endif 16 17#ifdef __need___va_list 18#undef __need___va_list 19#else 20#define __STDARG_H 21#ifndef _VA_LIST 22typedef __builtin_va_list va_list; 23#define _VA_LIST 24#endif 25 26/* FIXME: This is using the placeholder dates Clang produces for these macros 27 in C2x mode; switch to the correct values once they've been published. */ 28#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202000L 29/* C2x does not require the second parameter for va_start. */ 30#define va_start(ap, ...) __builtin_va_start(ap, 0) 31#else 32/* Versions before C2x do require the second parameter. */ 33#define va_start(ap, param) __builtin_va_start(ap, param) 34#endif 35#define va_end(ap) __builtin_va_end(ap) 36#define va_arg(ap, type) __builtin_va_arg(ap, type) 37 38/* GCC always defines __va_copy, but does not define va_copy unless in c99 mode 39 * or -ansi is not specified, since it was not part of C90. 40 */ 41#define __va_copy(d,s) __builtin_va_copy(d,s) 42 43#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ 44 (defined(__cplusplus) && __cplusplus >= 201103L) || \ 45 !defined(__STRICT_ANSI__) 46#define va_copy(dest, src) __builtin_va_copy(dest, src) 47#endif 48 49#endif /* __STDARG_H */ 50 51#endif /* not __STDARG_H */ 52