1 /* error.h -- declaration for error-reporting function 2 Copyright (C) 1995, 1996 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software 16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 17 18 #ifndef _error_h_ 19 #define _error_h_ 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) || __STRICT_ANSI__ 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 #if defined (__STDC__) && __STDC__ 35 36 /* Print a message with `fprintf (stderr, FORMAT, ...)'; 37 if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM). 38 If STATUS is nonzero, terminate the program with `exit (STATUS)'. */ 39 40 extern void error (int status, int errnum, const char *format, ...) 41 __attribute__ ((__format__ (__printf__, 3, 4))); 42 43 extern void error_at_line (int status, int errnum, const char *fname, 44 unsigned int lineno, const char *format, ...) 45 __attribute__ ((__format__ (__printf__, 5, 6))); 46 47 /* If NULL, error will flush stdout, then print on stderr the program 48 name, a colon and a space. Otherwise, error will call this 49 function without parameters instead. */ 50 extern void (*error_print_progname) (void); 51 52 #else 53 void error (); 54 void error_at_line (); 55 extern void (*error_print_progname) (); 56 #endif 57 58 /* This variable is incremented each time `error' is called. */ 59 extern unsigned int error_message_count; 60 61 /* Sometimes we want to have at most one error per line. This 62 variable controls whether this mode is selected or not. */ 63 extern int error_one_per_line; 64 65 #endif /* _error_h_ */ 66