} while (0)
/* Rotate right one 64 bit number as a 56 bit number */
-#define ror56_64(k, n) \
-do { \
- k = (k >> n) | ((k & ((1 << n) - 1)) << (56 - n)); \
-} while (0)
+#define ror56_64(k, n) (k = (k >> n) | ((k & ((1 << n) - 1)) << (56 - n)))
/*
* Sboxes for Feistel network derived from