1 /*===---- __stdarg_va_arg.h - Definitions of va_start, va_arg, va_end-------=== 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 va_arg 11 12 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L 13 /* C23 does not require the second parameter for va_start. */ 14 #define va_start(ap, ...) __builtin_va_start(ap, 0) 15 #else 16 /* Versions before C23 do require the second parameter. */ 17 #define va_start(ap, param) __builtin_va_start(ap, param) 18 #endif 19 #define va_end(ap) __builtin_va_end(ap) 20 #define va_arg(ap, type) __builtin_va_arg(ap, type) 21 22 #endif 23