#ifndef _STDARG_H#define _STDARG_H #ifdef __x86_64__#ifndef _WIN64 typedef void *va_list; va_list __va_start(void *fp);void *__va_arg(va_list ap, int arg_type, int size, int align);va_list __va_copy(va_list src);void __va_end(va_list ap); #define va_start(ap, last) ((ap) = __va_start(__builtin_frame_address(0)))#define va_arg(ap, type)                                                \    (*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type))))#define va_copy(dest, src) ((dest) = __va_copy(src))#define va_end(ap) __va_end(ap) #else /* _WIN64 */typedef char *va_list;#define va_start(ap,last) __builtin_va_start(ap,last)#define va_arg(ap,type) (ap += 8, sizeof(type)<=8 ? *(type*)ap : **(type**)ap)#define va_copy(dest, src) ((dest) = (src))#define va_end(ap)#endif #elif __arm__typedef char *va_list;#define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x)#define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \                               & ~(_tcc_alignof(type) - 1))#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)#define va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \                        &~3), *(type *)(ap - ((sizeof(type)+3)&~3)))#define va_copy(dest, src) (dest) = (src)#define va_end(ap) #else /* __i386__ */typedef char *va_list;/* only correct for i386 */#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)#define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))#define va_copy(dest, src) (dest) = (src)#define va_end(ap)#endif /* fix a buggy dependency on GCC in libio.h */typedef va_list __gnuc_va_list;#define _VA_LIST_DEFINED #endif /* _STDARG_H */