1#pragma once 2 3#include <features.h> 4#include <stdarg.h> 5 6#ifdef __cplusplus 7extern "C" { 8#endif 9 10void warn(const char*, ...); 11void vwarn(const char*, va_list); 12void warnx(const char*, ...); 13void vwarnx(const char*, va_list); 14 15_Noreturn void err(int, const char*, ...); 16_Noreturn void verr(int, const char*, va_list); 17_Noreturn void errx(int, const char*, ...); 18_Noreturn void verrx(int, const char*, va_list); 19 20#ifdef __cplusplus 21} 22#endif 23