1*5f757f3fSDimitry Andric /*===---- __stdarg_va_arg.h - Definitions of va_start, va_arg, va_end-------=== 2*5f757f3fSDimitry Andric * 3*5f757f3fSDimitry Andric * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*5f757f3fSDimitry Andric * See https://llvm.org/LICENSE.txt for license information. 5*5f757f3fSDimitry Andric * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*5f757f3fSDimitry Andric * 7*5f757f3fSDimitry Andric *===-----------------------------------------------------------------------=== 8*5f757f3fSDimitry Andric */ 9*5f757f3fSDimitry Andric 10*5f757f3fSDimitry Andric #ifndef va_arg 11*5f757f3fSDimitry Andric 12*5f757f3fSDimitry Andric #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L 13*5f757f3fSDimitry Andric /* C23 does not require the second parameter for va_start. */ 14*5f757f3fSDimitry Andric #define va_start(ap, ...) __builtin_va_start(ap, 0) 15*5f757f3fSDimitry Andric #else 16*5f757f3fSDimitry Andric /* Versions before C23 do require the second parameter. */ 17*5f757f3fSDimitry Andric #define va_start(ap, param) __builtin_va_start(ap, param) 18*5f757f3fSDimitry Andric #endif 19*5f757f3fSDimitry Andric #define va_end(ap) __builtin_va_end(ap) 20*5f757f3fSDimitry Andric #define va_arg(ap, type) __builtin_va_arg(ap, type) 21*5f757f3fSDimitry Andric 22*5f757f3fSDimitry Andric #endif 23