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/* Declaration for error-reporting function
   Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.  Its master source is NOT part of
   the C library, however.  The master source lives in /gd/gnu/lib.
 
   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
 
   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */
 
#ifndef _ERROR_H
#define _ERROR_H 1
 
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later.  */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
#  define __attribute__(Spec) /* empty */
# endif
/* The __-protected variants of `format' and `printf' attributes
   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
#  define __format__ format
#  define __printf__ printf
# endif
#endif
 
#ifdef	__cplusplus
extern "C" {
#endif
 
#if defined (__STDC__) && __STDC__
 
/* Print a message with `fprintf (stderr, FORMAT, ...)';
   if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
   If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
 
extern void error (int status, int errnum, const char *format, ...)
     __attribute__ ((__format__ (__printf__, 3, 4)));
 
extern void error_at_line (int status, int errnum, const char *fname,
			   unsigned int lineno, const char *format, ...)
     __attribute__ ((__format__ (__printf__, 5, 6)));
 
/* If NULL, error will flush stdout, then print on stderr the program
   name, a colon and a space.  Otherwise, error will call this
   function without parameters instead.  */
extern void (*error_print_progname) (void);
 
#else
void error ();
void error_at_line ();
extern void (*error_print_progname) ();
#endif
 
/* This variable is incremented each time `error' is called.  */
extern unsigned int error_message_count;
 
/* Sometimes we want to have at most one error per line.  This
   variable controls whether this mode is selected or not.  */
extern int error_one_per_line;
 
#ifdef	__cplusplus
}
#endif
 
#endif /* error.h */