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1/* Declaration for error-reporting function
2 Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
3
4
5 NOTE: The canonical source of this file is maintained with the GNU C Library.
6 Bugs can be reported to bug-glibc@prep.ai.mit.edu.
7
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
11 later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 USA. */
22
23#ifndef _ERROR_H
24#define _ERROR_H 1
25
26#ifndef __attribute__
27/* This feature is available in gcc versions 2.5 and later. */
28# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
29# define __attribute__(Spec) /* empty */
30# endif
31/* The __-protected variants of `format' and `printf' attributes
32 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
33# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
34# define __format__ format
35# define __printf__ printf
36# endif
37#endif
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
43#if defined (__STDC__) && __STDC__
44
45/* Print a message with `fprintf (stderr, FORMAT, ...)';
46 if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
47 If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
48
49extern void error (int status, int errnum, const char *format, ...)
50 __attribute__ ((__format__ (__printf__, 3, 4)));
51
52extern void error_at_line (int status, int errnum, const char *fname,
53 unsigned int lineno, const char *format, ...)
54 __attribute__ ((__format__ (__printf__, 5, 6)));
55
56/* If NULL, error will flush stdout, then print on stderr the program
57 name, a colon and a space. Otherwise, error will call this
58 function without parameters instead. */
59extern void (*error_print_progname) (void);
60
61#else
62void error ();
63void error_at_line ();
64extern void (*error_print_progname) ();
65#endif
66
67/* This variable is incremented each time `error' is called. */
68extern unsigned int error_message_count;
69
70/* Sometimes we want to have at most one error per line. This
71 variable controls whether this mode is selected or not. */
72extern int error_one_per_line;
73
74#ifdef __cplusplus
75}
76#endif
77
78#endif /* error.h */