libc/include/err.h

/*	$OpenBSD: err.h,v 1.10 2006/01/06 18:53:04 millert Exp $	*/
/*	$NetBSD: err.h,v 1.11 1994/10/26 00:55:52 cgd Exp $	*/

/*-
 * Copyright (c) 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)err.h	8.1 (Berkeley) 6/2/93
 */

#ifndef _ERR_H_
#define _ERR_H_

#include <stdarg.h>
#include <sys/cdefs.h>
#include <sys/types.h>

__BEGIN_DECLS

/* printf's format string isn't nullable; the err family's one is,
 * so we can't use __errlike here. */
#define __errlike(x, y) __attribute__((__format__(printf, x, y)))

__noreturn void err(int, const char *, ...) __errlike(2, 3);
__noreturn void verr(int, const char *, va_list) __errlike(2, 0);
__noreturn void errx(int, const char *, ...) __errlike(2, 3);
__noreturn void verrx(int, const char *, va_list) __errlike(2, 0);
void warn(const char *, ...) __errlike(1, 2);
void vwarn(const char *, va_list) __errlike(1, 0);
void warnx(const char *, ...) __errlike(1, 2);
void vwarnx(const char *, va_list) __errlike(1, 0);

__END_DECLS

#endif /* !_ERR_H_ */