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__stdarg_va_arg.h (793B) - Raw

      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