1 /* ===-------- vadefs.h ---------------------------------------------------=== 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 /* Only include this if we are aiming for MSVC compatibility. */ 11 #ifndef _MSC_VER 12 #include_next <vadefs.h> 13 #else 14 15 #ifndef __clang_vadefs_h 16 #define __clang_vadefs_h 17 18 #include_next <vadefs.h> 19 20 /* Override macros from vadefs.h with definitions that work with Clang. */ 21 #ifdef _crt_va_start 22 #undef _crt_va_start 23 #define _crt_va_start(ap, param) __builtin_va_start(ap, param) 24 #endif 25 #ifdef _crt_va_end 26 #undef _crt_va_end 27 #define _crt_va_end(ap) __builtin_va_end(ap) 28 #endif 29 #ifdef _crt_va_arg 30 #undef _crt_va_arg 31 #define _crt_va_arg(ap, type) __builtin_va_arg(ap, type) 32 #endif 33 34 /* VS 2015 switched to double underscore names, which is an improvement, but now 35 * we have to intercept those names too. 36 */ 37 #ifdef __crt_va_start 38 #undef __crt_va_start 39 #define __crt_va_start(ap, param) __builtin_va_start(ap, param) 40 #endif 41 #ifdef __crt_va_end 42 #undef __crt_va_end 43 #define __crt_va_end(ap) __builtin_va_end(ap) 44 #endif 45 #ifdef __crt_va_arg 46 #undef __crt_va_arg 47 #define __crt_va_arg(ap, type) __builtin_va_arg(ap, type) 48 #endif 49 50 #endif 51 #endif 52