1/* Declaration for error-reporting function
2   Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008, 2009, 2010 Free Software
3   Foundation, Inc.
4   This file is part of the GNU C Library.
5
6   This program is free software: you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
18
19#ifndef _ERROR_H
20#define _ERROR_H 1
21
22#ifndef __attribute__
23/* This feature is available in gcc versions 2.5 and later.  */
24# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
25#  define __attribute__(Spec) /* empty */
26# endif
27/* The __-protected variants of `format' and `printf' attributes
28   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
29# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
30#  define __format__ format
31#  define __printf__ printf
32# endif
33#endif
34
35#ifdef __cplusplus
36extern "C" {
37#endif
38
39/* Print a message with `fprintf (stderr, FORMAT, ...)';
40   if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
41   If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
42
43extern void error (int __status, int __errnum, const char *__format, ...)
44     __attribute__ ((__format__ (__printf__, 3, 4)));
45
46extern void error_at_line (int __status, int __errnum, const char *__fname,
47                           unsigned int __lineno, const char *__format, ...)
48     __attribute__ ((__format__ (__printf__, 5, 6)));
49
50/* If NULL, error will flush stdout, then print on stderr the program
51   name, a colon and a space.  Otherwise, error will call this
52   function without parameters instead.  */
53extern void (*error_print_progname) (void);
54
55/* This variable is incremented each time `error' is called.  */
56extern unsigned int error_message_count;
57
58/* Sometimes we want to have at most one error per line.  This
59   variable controls whether this mode is selected or not.  */
60extern int error_one_per_line;
61
62#ifdef __cplusplus
63}
64#endif
65
66#endif /* error.h */
67