misc/error.h

   1 /* Declaration for error-reporting function
   2    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
   3
   4    This file is part of the GNU C Library.  Its master source is NOT part of
   5    the C library, however.  The master source lives in /gd/gnu/lib.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Library General Public License as
   9    published by the Free Software Foundation; either version 2 of the
  10    License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Library General Public License for more details.
  16
  17    You should have received a copy of the GNU Library General Public
  18    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  19    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef _ERROR_H
  23 #define _ERROR_H 1
  24
  25 #ifndef __attribute__
  26 /* This feature is available in gcc versions 2.5 and later.  */
  27 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  28 #  define __attribute__(Spec) /* empty */
  29 # endif
  30 /* The __-protected variants of `format' and `printf' attributes
  31    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  32 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  33 #  define __format__ format
  34 #  define __printf__ printf
  35 # endif
  36 #endif
  37
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 #if defined (__STDC__) && __STDC__
  43
  44 /* Print a message with `fprintf (stderr, FORMAT, ...)';
  45    if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
  46    If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
  47
  48 extern void error (int status, int errnum, const char *format, ...)
  49      __attribute__ ((__format__ (__printf__, 3, 4)));
  50
  51 extern void error_at_line (int status, int errnum, const char *fname,
  52                            unsigned int lineno, const char *format, ...)
  53      __attribute__ ((__format__ (__printf__, 5, 6)));
  54
  55 /* If NULL, error will flush stdout, then print on stderr the program
  56    name, a colon and a space.  Otherwise, error will call this
  57    function without parameters instead.  */
  58 extern void (*error_print_progname) (void);
  59
  60 #else
  61 void error ();
  62 void error_at_line ();
  63 extern void (*error_print_progname) ();
  64 #endif
  65
  66 /* This variable is incremented each time `error' is called.  */
  67 extern unsigned int error_message_count;
  68
  69 /* Sometimes we want to have at most one error per line.  This
  70    variable controls whether this mode is selected or not.  */
  71 extern int error_one_per_line;
  72
  73 #ifdef  __cplusplus
  74 }
  75 #endif
  76
  77 #endif /* error.h */