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Annotation of nono/lib/missing_endian.h, revision 1.1.1.1

1.1       root        1: //
                      2: // nono
                      3: // Copyright (C) 2018 [email protected]
                      4: //
                      5: 
                      6: #pragma once
                      7: 
                      8: #if !defined(_LITTLE_ENDIAN)
                      9: # define _LITTLE_ENDIAN        1234
                     10: # define _BIG_ENDIAN   4321
                     11: #endif
                     12: 
                     13: #if !defined(_BYTE_ORDER)
                     14: # if defined(WORDS_BIGENDIAN)
                     15: #  define _BYTE_ORDER _BIG_ENDIAN
                     16: # else
                     17: #  define _BYTE_ORDER _LITTLE_ENDIAN
                     18: # endif
                     19: #endif
                     20: 
                     21: static inline uint16 be16toh(uint16 val)
                     22: {
                     23: #if _BYTE_ORDER == _BIG_ENDIAN
                     24:        return val;
                     25: #elif defined(HAVE___BUILTIN_BSWAP16)
                     26:        return __builtin_bswap16(val);
                     27: #else
                     28: #error no be16toh available
                     29: #endif
                     30: }
                     31: 
                     32: static inline uint32 be32toh(uint32 val)
                     33: {
                     34: #if _BYTE_ORDER == _BIG_ENDIAN
                     35:        return val;
                     36: #elif defined(HAVE___BUILTIN_BSWAP32)
                     37:        return __builtin_bswap32(val);
                     38: #else
                     39: #error no be32toh available
                     40: #endif
                     41: }
                     42: 
                     43: static inline uint16 htobe16(uint16 val)
                     44: {
                     45: #if _BYTE_ORDER == _BIG_ENDIAN
                     46:        return val;
                     47: #elif defined(HAVE___BUILTIN_BSWAP16)
                     48:        return __builtin_bswap16(val);
                     49: #else
                     50: #error no htobe16 available
                     51: #endif
                     52: }
                     53: 
                     54: static inline uint32 htobe32(uint32 val)
                     55: {
                     56: #if _BYTE_ORDER == _BIG_ENDIAN
                     57:        return val;
                     58: #elif defined(HAVE___BUILTIN_BSWAP32)
                     59:        return __builtin_bswap32(val);
                     60: #else
                     61: #error no htobe32 available
                     62: #endif
                     63: }

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