lib/error.h

   1 /* Declaration for error-reporting function
   2    Copyright (C) 1995, 1996, 1997, 2003, 2006 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 2, or (at your option)
   8    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 along
  16    with this program; if not, write to the Free Software Foundation,
  17    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  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) || __STRICT_ANSI__
  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
  36 extern "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
  43 extern void error (int __status, int __errnum, const char *__format, ...)
  44      __attribute__ ((__format__ (__printf__, 3, 4)));
  45
  46 extern 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.  */
  53 extern void (*error_print_progname) (void);
  54
  55 /* This variable is incremented each time `error' is called.  */
  56 extern 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.  */
  60 extern int error_one_per_line;
  61
  62 #ifdef  __cplusplus
  63 }
  64 #endif
  65
  66 #endif /* error.h */