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npy_endian.h

npy_endian.h 2.0 KB
Cronologia Originale

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  1. #ifndef _NPY_ENDIAN_H_
    2. 

  2. #define _NPY_ENDIAN_H_
    3. 

  3. 

  4. /*
    5. 

  5.  * NPY_BYTE_ORDER is set to the same value as BYTE_ORDER set by glibc in
    6. 

  6.  * endian.h
    7. 

  7.  */
    8. 

  8. 

  9. #ifdef NPY_HAVE_ENDIAN_H
    10. 

  10.     /* Use endian.h if available */
    11. 

  11.     #include <endian.h>
    12. 

  12. 

  13.     #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN)
    14. 

  14.         #define NPY_BYTE_ORDER    BYTE_ORDER
    15. 

  15.         #define NPY_LITTLE_ENDIAN LITTLE_ENDIAN
    16. 

  16.         #define NPY_BIG_ENDIAN    BIG_ENDIAN
    17. 

  17.     #elif defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && defined(_LITTLE_ENDIAN)
    18. 

  18.         #define NPY_BYTE_ORDER    _BYTE_ORDER
    19. 

  19.         #define NPY_LITTLE_ENDIAN _LITTLE_ENDIAN
    20. 

  20.         #define NPY_BIG_ENDIAN    _BIG_ENDIAN
    21. 

  21.     #elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN)
    22. 

  22.         #define NPY_BYTE_ORDER    __BYTE_ORDER
    23. 

  23.         #define NPY_LITTLE_ENDIAN __LITTLE_ENDIAN
    24. 

  24.         #define NPY_BIG_ENDIAN    __BIG_ENDIAN
    25. 

  25.     #endif
    26. 

  26. #endif
    27. 

  27. 

  28. #ifndef NPY_BYTE_ORDER
    29. 

  29.     /* Set endianness info using target CPU */
    30. 

  30.     #include "npy_cpu.h"
    31. 

  31. 

  32.     #define NPY_LITTLE_ENDIAN 1234
    33. 

  33.     #define NPY_BIG_ENDIAN 4321
    34. 

  34. 

  35.     #if defined(NPY_CPU_X86)            \
    36. 

  36.             || defined(NPY_CPU_AMD64)   \
    37. 

  37.             || defined(NPY_CPU_IA64)    \
    38. 

  38.             || defined(NPY_CPU_ALPHA)   \
    39. 

  39.             || defined(NPY_CPU_ARMEL)   \
    40. 

  40.             || defined(NPY_CPU_AARCH64) \
    41. 

  41.             || defined(NPY_CPU_SH_LE)   \
    42. 

  42.             || defined(NPY_CPU_MIPSEL)  \
    43. 

  43.             || defined(NPY_CPU_PPC64LE)
    44. 

  44.         #define NPY_BYTE_ORDER NPY_LITTLE_ENDIAN
    45. 

  45.     #elif defined(NPY_CPU_PPC)          \
    46. 

  46.             || defined(NPY_CPU_SPARC)   \
    47. 

  47.             || defined(NPY_CPU_S390)    \
    48. 

  48.             || defined(NPY_CPU_HPPA)    \
    49. 

  49.             || defined(NPY_CPU_PPC64)   \
    50. 

  50.             || defined(NPY_CPU_ARMEB)   \
    51. 

  51.             || defined(NPY_CPU_SH_BE)   \
    52. 

  52.             || defined(NPY_CPU_MIPSEB)  \
    53. 

  53.             || defined(NPY_CPU_OR1K)    \
    54. 

  54.             || defined(NPY_CPU_M68K)
    55. 

  55.         #define NPY_BYTE_ORDER NPY_BIG_ENDIAN
    56. 

  56.     #else
    57. 

  57.         #error Unknown CPU: can not set endianness
    58. 

  58.     #endif
    59. 

  59. #endif
    60. 

  60. 

  61. #endif
    62.