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1 /* ===-------- vadefs.h ---------------------------------------------------===
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2 *
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3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 * See https://llvm.org/LICENSE.txt for license information.
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5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 *
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7 *===-----------------------------------------------------------------------===
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8 */
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9
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10 /* Only include this if we are aiming for MSVC compatibility. */
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11 #ifndef _MSC_VER
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12 #include_next <vadefs.h>
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13 #else
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14
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15 #ifndef __clang_vadefs_h
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16 #define __clang_vadefs_h
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17
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18 #include_next <vadefs.h>
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19
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20 /* Override macros from vadefs.h with definitions that work with Clang. */
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21 #ifdef _crt_va_start
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22 #undef _crt_va_start
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23 #define _crt_va_start(ap, param) __builtin_va_start(ap, param)
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24 #endif
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25 #ifdef _crt_va_end
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26 #undef _crt_va_end
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27 #define _crt_va_end(ap) __builtin_va_end(ap)
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28 #endif
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29 #ifdef _crt_va_arg
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30 #undef _crt_va_arg
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31 #define _crt_va_arg(ap, type) __builtin_va_arg(ap, type)
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32 #endif
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33
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34 /* VS 2015 switched to double underscore names, which is an improvement, but now
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35 * we have to intercept those names too.
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36 */
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37 #ifdef __crt_va_start
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38 #undef __crt_va_start
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39 #define __crt_va_start(ap, param) __builtin_va_start(ap, param)
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40 #endif
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41 #ifdef __crt_va_end
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42 #undef __crt_va_end
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43 #define __crt_va_end(ap) __builtin_va_end(ap)
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44 #endif
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45 #ifdef __crt_va_arg
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46 #undef __crt_va_arg
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47 #define __crt_va_arg(ap, type) __builtin_va_arg(ap, type)
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48 #endif
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49
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50 #endif
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51 #endif
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