1#ifndef _ERR_H
 2#define _ERR_H
 3
 4#include <features.h>
 5#include <stdarg.h>
 6
 7#ifdef __cplusplus
 8extern "C" {
 9#endif
10
11void warn(const char *, ...);
12void vwarn(const char *, va_list);
13void warnx(const char *, ...);
14void vwarnx(const char *, va_list);
15
16_Noreturn void err(int, const char *, ...);
17_Noreturn void verr(int, const char *, va_list);
18_Noreturn void errx(int, const char *, ...);
19_Noreturn void verrx(int, const char *, va_list);
20
21#ifdef __cplusplus
22}
23#endif
24
25#endif