1 | #ifndef _STDARG_H
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2 | #define _STDARG_H
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3 |
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4 | #ifdef __x86_64__
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5 | #ifndef _WIN64
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6 |
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7 | typedef void *va_list;
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8 |
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9 | va_list __va_start(void *fp);
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10 | void *__va_arg(va_list ap, int arg_type, int size);
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11 | va_list __va_copy(va_list src);
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12 | void __va_end(va_list ap);
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13 |
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14 | #define va_start(ap, last) ((ap) = __va_start(__builtin_frame_address(0)))
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15 | #define va_arg(ap, type) \
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16 | (*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type))))
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17 | #define va_copy(dest, src) ((dest) = __va_copy(src))
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18 | #define va_end(ap) __va_end(ap)
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19 |
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20 | #else /* _WIN64 */
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21 | typedef char *va_list;
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22 | #define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+7)&~7)
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23 | #define va_arg(ap,type) (ap += (sizeof(type)+7)&~7, *(type *)(ap - ((sizeof(type)+7)&~7)))
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24 | #define va_copy(dest, src) (dest) = (src)
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25 | #define va_end(ap)
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26 | #endif
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27 |
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28 | #else /* __i386__ */
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29 | typedef char *va_list;
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30 | /* only correct for i386 */
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31 | #define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
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32 | #define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))
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33 | #define va_copy(dest, src) (dest) = (src)
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34 | #define va_end(ap)
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35 | #endif
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36 |
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37 | /* fix a buggy dependency on GCC in libio.h */
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38 | typedef va_list __gnuc_va_list;
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39 | #define _VA_LIST_DEFINED
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40 |
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41 | #endif /* _STDARG_H */
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