include/byteswap.h

   1 #ifndef _BYTESWAP_H
   2 #define _BYTESWAP_H
   3
   4 #include <features.h>
   5 #include <stdint.h>
   6
   7 static __inline uint16_t __bswap_16(uint16_t __x)
   8 {
   9         return __x<<8 | __x>>8;
  10 }
  11
  12 static __inline uint32_t __bswap_32(uint32_t __x)
  13 {
  14         return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24;
  15 }
  16
  17 static __inline uint64_t __bswap_64(uint64_t __x)
  18 {
  19         return __bswap_32(__x)+0ULL<<32 | __bswap_32(__x>>32);
  20 }
  21
  22 #define bswap_16(x) __bswap_16(x)
  23 #define bswap_32(x) __bswap_32(x)
  24 #define bswap_64(x) __bswap_64(x)
  25
  26 #endif