1/* Declaration for error-reporting function
2   Copyright (C) 1995, 1996, 1997, 2003, 2006 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   This program is free software: you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#ifndef _ERROR_H
19#define _ERROR_H 1
20
21#ifndef __attribute__
22/* This feature is available in gcc versions 2.5 and later.  */
23# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
24#  define __attribute__(Spec) /* empty */
25# endif
26/* The __-protected variants of `format' and `printf' attributes
27   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
28# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
29#  define __format__ format
30#  define __printf__ printf
31# endif
32#endif
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38/* Print a message with `fprintf (stderr, FORMAT, ...)';
39   if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
40   If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
41
42extern void error (int __status, int __errnum, const char *__format, ...)
43     __attribute__ ((__format__ (__printf__, 3, 4)));
44
45extern void error_at_line (int __status, int __errnum, const char *__fname,
46			   unsigned int __lineno, const char *__format, ...)
47     __attribute__ ((__format__ (__printf__, 5, 6)));
48
49/* If NULL, error will flush stdout, then print on stderr the program
50   name, a colon and a space.  Otherwise, error will call this
51   function without parameters instead.  */
52extern void (*error_print_progname) (void);
53
54/* This variable is incremented each time `error' is called.  */
55extern unsigned int error_message_count;
56
57/* Sometimes we want to have at most one error per line.  This
58   variable controls whether this mode is selected or not.  */
59extern int error_one_per_line;
60
61#ifdef	__cplusplus
62}
63#endif
64
65#endif /* error.h */
66