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 14 typedef __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 22 typedef __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