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 */
79