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| 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 |
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