misc/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    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _ERROR_H
  21 #define _ERROR_H 1
  22
  23 #ifndef __attribute__
  24 /* This feature is available in gcc versions 2.5 and later.  */
  25 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  26 #  define __attribute__(Spec) /* empty */
  27 # endif
  28 /* The __-protected variants of `format' and `printf' attributes
  29    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  30 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  31 #  define __format__ format
  32 #  define __printf__ printf
  33 # endif
  34 #endif
  35
  36 #ifdef  __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 /* Print a message with `fprintf (stderr, FORMAT, ...)';
  41    if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
  42    If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
  43
  44 extern void error (int __status, int __errnum, const char *__format, ...)
  45      __attribute__ ((__format__ (__printf__, 3, 4)));
  46
  47 extern void error_at_line (int __status, int __errnum, const char *__fname,
  48                            unsigned int __lineno, const char *__format, ...)
  49      __attribute__ ((__format__ (__printf__, 5, 6)));
  50
  51 /* If NULL, error will flush stdout, then print on stderr the program
  52    name, a colon and a space.  Otherwise, error will call this
  53    function without parameters instead.  */
  54 extern void (*error_print_progname) (void);
  55
  56 /* This variable is incremented each time `error' is called.  */
  57 extern unsigned int error_message_count;
  58
  59 /* Sometimes we want to have at most one error per line.  This
  60    variable controls whether this mode is selected or not.  */
  61 extern int error_one_per_line;
  62
  63 #ifdef  __cplusplus
  64 }
  65 #endif
  66
  67 #endif /* error.h */