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- /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
- #include <stdlib.h>
-
- void
- swab(const void *from, void *to, int n)
- {
- unsigned long temp;
-
- n >>= 1; n++;
- #define STEP temp = *((const char *)from)++,*((char *)to)++ = *((const char *)from)++,*((char *)to)++ = temp
- /* round to multiple of 8 */
- while ((--n) & 07)
- STEP;
- n >>= 3;
- while (--n >= 0) {
- STEP; STEP; STEP; STEP;
- STEP; STEP; STEP; STEP;
- }
- }
-