1 /* Declaration for error-reporting function 2 Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. 3 4 5 NOTE: The canonical source of this file is maintained with the GNU C Library. 6 Bugs can be reported to [email protected]. 7 8 This program is free software; you can redistribute it and/or modify it 9 under the terms of the GNU General Public License as published by the 10 Free Software Foundation; either version 2, or (at your option) any 11 later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 21 USA. */ 22 23 #ifndef _ERROR_H 24 #define _ERROR_H 1 25 26 #ifndef __attribute__ 27 /* This feature is available in gcc versions 2.5 and later. */ 28 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ 29 # define __attribute__(Spec) /* empty */ 30 # endif 31 /* The __-protected variants of `format' and `printf' attributes 32 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ 33 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) 34 # define __format__ format 35 # define __printf__ printf 36 # endif 37 #endif 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #if defined (__STDC__) && __STDC__ 44 45 /* Print a message with `fprintf (stderr, FORMAT, ...)'; 46 if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM). 47 If STATUS is nonzero, terminate the program with `exit (STATUS)'. */ 48 49 extern void error (int status, int errnum, const char *format, ...) 50 __attribute__ ((__format__ (__printf__, 3, 4))); 51 52 extern void error_at_line (int status, int errnum, const char *fname, 53 unsigned int lineno, const char *format, ...) 54 __attribute__ ((__format__ (__printf__, 5, 6))); 55 56 /* If NULL, error will flush stdout, then print on stderr the program 57 name, a colon and a space. Otherwise, error will call this 58 function without parameters instead. */ 59 extern void (*error_print_progname) (void); 60 61 #else 62 void error (); 63 void error_at_line (); 64 extern void (*error_print_progname) (); 65 #endif 66 67 /* This variable is incremented each time `error' is called. */ 68 extern unsigned int error_message_count; 69 70 /* Sometimes we want to have at most one error per line. This 71 variable controls whether this mode is selected or not. */ 72 extern int error_one_per_line; 73 74 #ifdef __cplusplus 75 } 76 #endif 77 78 #endif /* error.h */ 79