error.h 2.4 KB

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  1. /* Declaration for error-reporting function
  2. Copyright (C) 1995, 1996, 1997, 2003, 2006, 2008, 2009, 2010 Free Software
  3. Foundation, Inc.
  4. This file is part of the GNU C Library.
  5. This program is free software: you can redistribute it and/or modify
  6. it under the terms of the GNU General Public License as published by
  7. the Free Software Foundation; either version 3 of the License, or
  8. (at your option) any later version.
  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. You should have received a copy of the GNU General Public License
  14. along with this program. If not, see <http://www.gnu.org/licenses/>. */
  15. #ifndef _ERROR_H
  16. #define _ERROR_H 1
  17. #ifndef __attribute__
  18. /* The __attribute__ feature is available in gcc versions 2.5 and later.
  19. The __-protected variants of the attributes 'format' and 'printf' are
  20. accepted by gcc versions 2.6.4 (effectively 2.7) and later.
  21. We enable __attribute__ only if these are supported too, because
  22. gnulib and libintl do '#define printf __printf__' when they override
  23. the 'printf' function. */
  24. # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  25. # define __attribute__(Spec) /* empty */
  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 void (*error_print_progname) (void);
  43. /* This variable is incremented each time `error' is called. */
  44. extern 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 int error_one_per_line;
  48. #ifdef __cplusplus
  49. }
  50. #endif
  51. #endif /* error.h */