light_byteswap.h

   1 #ifndef LIGHT_BYTESWAP
   2 #define LIGHT_BYTESWAP
   3
   4 #define bswap_16(value) \
   5 ((((value) & 0xff) << 8) | ((value) >> 8))
   6
   7 #define bswap_32(value) \
   8 (((uint32_t)bswap_16((uint16_t)((value) & 0xffff)) << 16) | \
   9 (uint32_t)bswap_16((uint16_t)((value) >> 16)))
  10
  11 #define bswap_64(value) \
  12 (((uint64_t)bswap_32((uint32_t)((value) & 0xffffffff)) \
  13 << 32) | \
  14 (uint64_t)bswap_32((uint32_t)((value) >> 32)))
  15
  16 #endif