misc/error.h

   1 /* Declaration for error-reporting function
   2    Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.  Its master source is NOT part of
   4    the C library, however.  The master source lives in /gd/gnu/lib.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _ERROR_H
  22 #define _ERROR_H 1
  23
  24 #ifndef __attribute__
  25 /* This feature is available in gcc versions 2.5 and later.  */
  26 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
  27 #  define __attribute__(Spec) /* empty */
  28 # endif
  29 /* The __-protected variants of `format' and `printf' attributes
  30    are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
  31 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  32 #  define __format__ format
  33 #  define __printf__ printf
  34 # endif
  35 #endif
  36
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 #if defined (__STDC__) && __STDC__
  42
  43 /* Print a message with `fprintf (stderr, FORMAT, ...)';
  44    if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
  45    If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
  46
  47 extern void error (int status, int errnum, const char *format, ...)
  48      __attribute__ ((__format__ (__printf__, 3, 4)));
  49
  50 extern void error_at_line (int status, int errnum, const char *fname,
  51                            unsigned int lineno, const char *format, ...)
  52      __attribute__ ((__format__ (__printf__, 5, 6)));
  53
  54 /* If NULL, error will flush stdout, then print on stderr the program
  55    name, a colon and a space.  Otherwise, error will call this
  56    function without parameters instead.  */
  57 extern void (*error_print_progname) (void);
  58
  59 #else
  60 void error ();
  61 void error_at_line ();
  62 extern void (*error_print_progname) ();
  63 #endif
  64
  65 /* This variable is incremented each time `error' is called.  */
  66 extern unsigned int error_message_count;
  67
  68 /* Sometimes we want to have at most one error per line.  This
  69    variable controls whether this mode is selected or not.  */
  70 extern int error_one_per_line;
  71
  72 #ifdef  __cplusplus
  73 }
  74 #endif
  75
  76 #endif /* error.h */