ref: a799fd84aabd2df4789da1fe498e2f7ced1aa141
dir: /include/stdarg.h/
#ifndef _STDARG_H #define _STDARG_H typedef __builtin_va_list va_list; #define va_start(ap, last) __builtin_va_start(ap, last) #define va_end(ap) __builtin_va_end(ap) #define va_copy(to, from) __builtin_va_copy(to, from) #define va_arg(to, type) __builtin_va_arg(to, type) #endif