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endian.h

endian.h 2.1 KB
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  1. /*	$OpenBSD: endian.h,v 1.18 2006/03/27 07:09:24 otto Exp $	*/
    2. 

  2. 

  3. /*-
    4. 

  4.  * Copyright (c) 1997 Niklas Hallqvist.  All rights reserved.
    5. 

  5.  *
    6. 

  6.  * Redistribution and use in source and binary forms, with or without
    7. 

  7.  * modification, are permitted provided that the following conditions
    8. 

  8.  * are met:
    9. 

  9.  * 1. Redistributions of source code must retain the above copyright
    10. 

  10.  *    notice, this list of conditions and the following disclaimer.
    11. 

  11.  * 2. Redistributions in binary form must reproduce the above copyright
    12. 

  12.  *    notice, this list of conditions and the following disclaimer in the
    13. 

  13.  *    documentation and/or other materials provided with the distribution.
    14. 

  14.  *
    15. 

  15.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    16. 

  16.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    17. 

  17.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    18. 

  18.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
    19. 

  19.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
    20. 

  20.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    21. 

  21.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    22. 

  22.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    23. 

  23.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
    24. 

  24.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    25. 

  25.  */
    26. 

  26. 

  27. /*
    28. 

  28.  * Generic definitions for little- and big-endian systems.  Other endianesses
    29. 

  29.  * has to be dealt with in the specific machine/endian.h file for that port.
    30. 

  30.  *
    31. 

  31.  * This file is meant to be included from a little- or big-endian port's
    32. 

  32.  * machine/endian.h after setting _BYTE_ORDER to either 1234 for little endian
    33. 

  33.  * or 4321 for big..
    34. 

  34.  */
    35. 

  35. 

  36. #ifndef _SYS_ENDIAN_H_
    37. 

  37. #define _SYS_ENDIAN_H_
    38. 

  38. 

  39. #define _LITTLE_ENDIAN  1234
    40. 

  40. #define _BIG_ENDIAN     4321
    41. 

  41. #define _PDP_ENDIAN     3412
    42. 

  42. #define _BYTE_ORDER     _LITTLE_ENDIAN
    43. 

  43. 

  44. #define LITTLE_ENDIAN   _LITTLE_ENDIAN
    45. 

  45. #define BIG_ENDIAN      _BIG_ENDIAN
    46. 

  46. #define PDP_ENDIAN      _PDP_ENDIAN
    47. 

  47. #define BYTE_ORDER      _BYTE_ORDER
    48. 

  48. 

  49. #define __BYTE_ORDER    _BYTE_ORDER
    50. 

  50. #define __BIG_ENDIAN    _BIG_ENDIAN
    51. 

  51. #define __LITTLE_ENDIAN _LITTLE_ENDIAN
    52. 

  52. 

  53. #endif /* _SYS_ENDIAN_H_ */
    54. 

  54.