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libimobiledevice
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libimobiledevice-1.2.0
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include
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endianness.h

endianness.h 1.9 KB
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  1. #ifndef ENDIANNESS_H
    2. 

  2. #define ENDIANNESS_H
    3. 

  3. 

  4. #ifndef __LITTLE_ENDIAN
    5. 

  5. #define __LITTLE_ENDIAN 1234
    6. 

  6. #endif
    7. 

  7. 

  8. #ifndef __BIG_ENDIAN
    9. 

  9. #define __BIG_ENDIAN 4321
    10. 

  10. #endif
    11. 

  11. 

  12. #ifndef __BYTE_ORDER
    13. 

  13. #ifdef __LITTLE_ENDIAN__
    14. 

  14. #define __BYTE_ORDER __LITTLE_ENDIAN
    15. 

  15. #else
    16. 

  16. #ifdef __BIG_ENDIAN__
    17. 

  17. #define __BYTE_ORDER __BIG_ENDIAN
    18. 

  18. #endif
    19. 

  19. #endif
    20. 

  20. #endif
    21. 

  21. 

  22. #ifndef be16toh
    23. 

  23. #if __BYTE_ORDER == __BIG_ENDIAN
    24. 

  24. #define be16toh(x) (x)
    25. 

  25. #else
    26. 

  26. #define be16toh(x) ((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
    27. 

  27. #endif
    28. 

  28. #endif
    29. 

  29. 

  30. #ifndef __bswap_32
    31. 

  31. #define __bswap_32(x) ((((x) & 0xFF000000) >> 24) \
    32. 

  32.                     | (((x) & 0x00FF0000) >> 8) \
    33. 

  33.                     | (((x) & 0x0000FF00) << 8) \
    34. 

  34.                     | (((x) & 0x000000FF) << 24))
    35. 

  35. #endif
    36. 

  36. 

  37. #ifndef be32toh
    38. 

  38. #if __BYTE_ORDER == __BIG_ENDIAN
    39. 

  39. #define be32toh(x) (x)
    40. 

  40. #else
    41. 

  41. #define be32toh(x) __bswap_32(x)
    42. 

  42. #endif
    43. 

  43. #endif
    44. 

  44. 

  45. #ifndef htobe32
    46. 

  46. #define htobe32 be32toh
    47. 

  47. #endif
    48. 

  48. 

  49. #ifndef le32toh
    50. 

  50. #if __BYTE_ORDER == __BIG_ENDIAN
    51. 

  51. #define le32toh(x) __bswap_32(x)
    52. 

  52. #else
    53. 

  53. #define le32toh(x) (x)
    54. 

  54. #endif
    55. 

  55. #endif
    56. 

  56. 

  57. #ifndef htole32
    58. 

  58. #define htole32 le32toh
    59. 

  59. #endif
    60. 

  60. 

  61. #ifndef __bswap_64
    62. 

  62. #define __bswap_64(x) ((((x) & 0xFF00000000000000ull) >> 56) \
    63. 

  63.                     | (((x) & 0x00FF000000000000ull) >> 40) \
    64. 

  64.                     | (((x) & 0x0000FF0000000000ull) >> 24) \
    65. 

  65.                     | (((x) & 0x000000FF00000000ull) >> 8) \
    66. 

  66.                     | (((x) & 0x00000000FF000000ull) << 8) \
    67. 

  67.                     | (((x) & 0x0000000000FF0000ull) << 24) \
    68. 

  68.                     | (((x) & 0x000000000000FF00ull) << 40) \
    69. 

  69.                     | (((x) & 0x00000000000000FFull) << 56))
    70. 

  70. #endif
    71. 

  71. 

  72. #ifndef htobe64
    73. 

  73. #if __BYTE_ORDER == __BIG_ENDIAN
    74. 

  74. #define htobe64(x) (x)
    75. 

  75. #else
    76. 

  76. #define htobe64(x) __bswap_64(x)
    77. 

  77. #endif
    78. 

  78. #endif
    79. 

  79. 

  80. #ifndef be64toh
    81. 

  81. #define be64toh htobe64
    82. 

  82. #endif
    83. 

  83. 

  84. #ifndef le64toh
    85. 

  85. #if __BYTE_ORDER == __LITTLE_ENDIAN
    86. 

  86. #define le64toh(x) (x)
    87. 

  87. #else
    88. 

  88. #define le64toh(x) __bswap_64(x)
    89. 

  89. #endif
    90. 

  90. #endif
    91. 

  91. 

  92. #ifndef htole64
    93. 

  93. #define htole64 le64toh
    94. 

  94. #endif
    95. 

  95. 

  96. #endif /* ENDIANNESS_H */
    97.