8 void vwarn(const char *fmt, va_list ap)  in vwarn()  argument
12 		vfprintf(stderr, fmt, ap);  in vwarn()
18 void vwarnx(const char *fmt, va_list ap)  in vwarnx()  argument
21 	if (fmt) vfprintf(stderr, fmt, ap);  in vwarnx()
25 _Noreturn void verr(int status, const char *fmt, va_list ap)  in verr()  argument
27 	vwarn(fmt, ap);  in verr()
31 _Noreturn void verrx(int status, const char *fmt, va_list ap)  in verrx()  argument
33 	vwarnx(fmt, ap);  in verrx()
39 	va_list ap;  in warn()  local
40 	va_start(ap, fmt);  in warn()
41 	vwarn(fmt, ap);  in warn()
42 	va_end(ap);  in warn()
47 	va_list ap;  in warnx()  local
48 	va_start(ap, fmt);  in warnx()
49 	vwarnx(fmt, ap);  in warnx()
50 	va_end(ap);  in warnx()
55 	va_list ap;  in err()  local
56 	va_start(ap, fmt);  in err()
57 	verr(status, fmt, ap);  in err()
58 	va_end(ap);  in err()
63 	va_list ap;  in errx()  local
64 	va_start(ap, fmt);  in errx()
65 	verrx(status, fmt, ap);  in errx()
66 	va_end(ap);  in errx()