/*	$OpenBSD: err.h,v 1.3 1997/09/21 10:45:32 niklas 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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_

#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif

/*
 * GCC1 and some versions of GCC2 declare dead (non-returning) and
 * pure (no side effects) functions using "volatile" and "const";
 * unfortunately, these then cause warnings under "-ansi -pedantic".
 * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of
 * these work for GNU C++ (modulo a slight glitch in the C++ grammar
 * in the distribution version of 2.5.5).
 */
#if !defined(__GNUC__) || __GNUC__ < 2 || \
	(__GNUC__ == 2 && __GNUC_MINOR__ < 5)
#define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
#define	__dead		__volatile
#endif
#endif

/* Delete pseudo-keywords wherever they are not available or needed. */
#ifndef __dead
#define	__dead
#endif

#ifndef __P
#define __P(x) x
#endif /* !__P */

#ifdef __BEGIN_DECLS
__BEGIN_DECLS
#endif
__dead void	err __P((int, const char *, ...))
			__attribute__((noreturn, format (printf, 2, 3)));
__dead void	verr __P((int, const char *, va_list))
			__attribute__((noreturn, format (printf, 2, 0)));
__dead void	errx __P((int, const char *, ...))
			__attribute__((noreturn, format (printf, 2, 3)));
__dead void	verrx __P((int, const char *, va_list))
			__attribute__((noreturn, format (printf, 2, 0)));
void		warn __P((const char *, ...))
			__attribute__((format (printf, 1, 2)));
void		vwarn __P((const char *, va_list))
			__attribute__((format (printf, 1, 0)));
void		warnx __P((const char *, ...))
			__attribute__((format (printf, 1, 2)));
void		vwarnx __P((const char *, va_list))
			__attribute__((format (printf, 1, 0)));
#ifdef __END_DECLS
__END_DECLS
#endif

#endif /* !_ERR_H_ */