error.h 2.4 KB

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  1. /* Declaration for error-reporting function
  2. Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  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 3 of the License, or
  7. (at your option) any later version.
  8. This program is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. GNU General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with this program. If not, see <http://www.gnu.org/licenses/>. */
  14. #ifndef _ERROR_H
  15. #define _ERROR_H 1
  16. #ifndef __attribute__
  17. /* This feature is available in gcc versions 2.5 and later. */
  18. # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
  19. # define __attribute__(Spec) /* empty */
  20. # endif
  21. /* The __-protected variants of `format' and `printf' attributes
  22. are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
  23. # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  24. # define __format__ format
  25. # define __printf__ printf
  26. # endif
  27. #endif
  28. #ifdef __cplusplus
  29. extern "C" {
  30. #endif
  31. /* Print a message with `fprintf (stderr, FORMAT, ...)';
  32. if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
  33. If STATUS is nonzero, terminate the program with `exit (STATUS)'. */
  34. extern void error (int __status, int __errnum, const char *__format, ...)
  35. __attribute__ ((__format__ (__printf__, 3, 4)));
  36. extern void error_at_line (int __status, int __errnum, const char *__fname,
  37. unsigned int __lineno, const char *__format, ...)
  38. __attribute__ ((__format__ (__printf__, 5, 6)));
  39. /* If NULL, error will flush stdout, then print on stderr the program
  40. name, a colon and a space. Otherwise, error will call this
  41. function without parameters instead. */
  42. extern DLL_VARIABLE void (*error_print_progname) (void);
  43. /* This variable is incremented each time `error' is called. */
  44. extern DLL_VARIABLE unsigned int error_message_count;
  45. /* Sometimes we want to have at most one error per line. This
  46. variable controls whether this mode is selected or not. */
  47. extern DLL_VARIABLE int error_one_per_line;
  48. #ifdef __cplusplus
  49. }
  50. #endif
  51. #endif /* error.h */