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      1 /* Declaration for error-reporting function
      2    Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008 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)
     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
     35 extern "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 
     42 extern void error (int __status, int __errnum, const char *__format, ...)
     43      __attribute__ ((__format__ (__printf__, 3, 4)));
     44 
     45 extern 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.  */
     52 extern void (*error_print_progname) (void);
     53 
     54 /* This variable is incremented each time `error' is called.  */
     55 extern 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.  */
     59 extern int error_one_per_line;
     60 
     61 #ifdef	__cplusplus
     62 }
     63 #endif
     64 
     65 #endif /* error.h */
     66