/* 4.4BSD utility functions for error messages.
Copyright (C) 1995-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */

#ifndef _ERR_H
#define _ERR_H 1

#include <features.h>

#define __need___va_list
#include <stdarg.h>
#ifndef __GNUC_VA_LIST
# define __gnuc_va_list void *
#endif

__BEGIN_DECLS

/* Print "program: ", FORMAT, ": ", the standard error string for errno,
and a newline, on stderr. */
extern void warn (const char *__format, ...)
__attribute__ ((__format__ (__printf__, 1, 2)));
extern void vwarn (const char *__format, __gnuc_va_list)
__attribute__ ((__format__ (__printf__, 1, 0)));

/* Likewise, but without ": " and the standard error string. */
extern void warnx (const char *__format, ...)
__attribute__ ((__format__ (__printf__, 1, 2)));
extern void vwarnx (const char *__format, __gnuc_va_list)
__attribute__ ((__format__ (__printf__, 1, 0)));

/* Likewise, and then exit with STATUS. */
extern void err (int __status, const char *__format, ...)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
extern void verr (int __status, const char *__format, __gnuc_va_list)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));
extern void errx (int __status, const char *__format, ...)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 3)));
extern void verrx (int __status, const char *, __gnuc_va_list)
__attribute__ ((__noreturn__, __format__ (__printf__, 2, 0)));

__END_DECLS

#endif /* err.h */