src/endian.h

   1 #ifndef __ENDIAN_H
   2 #define __ENDIAN_H
   3
   4 void memrev16(void *p);
   5 void memrev32(void *p);
   6 void memrev64(void *p);
   7
   8 /* variants of the function doing the actual convertion only if the target
   9  * host is big endian */
  10 #if (BYTE_ORDER == LITTLE_ENDIAN)
  11 #define memrev16ifbe(p)
  12 #define memrev32ifbe(p)
  13 #define memrev64ifbe(p)
  14 #define intrev16ifbe(v) (v)
  15 #define intrev32ifbe(v) (v)
  16 #define intrev64ifbe(v) (v)
  17 #else
  18 #define memrev16ifbe(p) memrev16(p)
  19 #define memrev32ifbe(p) memrev32(p)
  20 #define memrev64ifbe(p) memrev64(p)
  21 #define intrev16ifbe(v) intrev16(v)
  22 #define intrev32ifbe(v) intrev32(v)
  23 #define intrev64ifbe(v) intrev64(v)
  24 #endif
  25
  26 #endif