bits.h 693 B

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  1. /*
  2. * $Id: bits.h,v 1.10 2006/01/30 23:07:57 mclark Exp $
  3. *
  4. * Copyright (c) 2004, 2005 Metaparadigm Pte. Ltd.
  5. * Michael Clark <michael@metaparadigm.com>
  6. *
  7. * This library is free software; you can redistribute it and/or modify
  8. * it under the terms of the MIT license. See COPYING for details.
  9. *
  10. */
  11. #ifndef _bits_h_
  12. #define _bits_h_
  13. #ifndef json_min
  14. #define json_min(a,b) ((a) < (b) ? (a) : (b))
  15. #endif
  16. #ifndef json_max
  17. #define json_max(a,b) ((a) > (b) ? (a) : (b))
  18. #endif
  19. #define hexdigit(x) (((x) <= '9') ? (x) - '0' : ((x) & 7) + 9)
  20. #define error_ptr(error) ((void*)error)
  21. #define error_description(error) (json_tokener_errors[error])
  22. #define is_error(ptr) (ptr == NULL)
  23. #endif