clean up awk syntax

[unix-history] / usr / src / lib / libc / string / swab.c

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)swab.c      5.3 (Berkeley) %G%";
#endif LIBC_SCCS and not lint

/*
* Swab bytes
* Jeffrey Mogul, Stanford
*/

swab(from, to, n)
       register char *from, *to;
       register int n;
{
       register unsigned long temp;
       
       n >>= 1; n++;
#define STEP    temp = *from++,*to++ = *from++,*to++ = temp
       /* round to multiple of 8 */
       while ((--n) & 07)
               STEP;
       n >>= 3;
       while (--n >= 0) {
               STEP; STEP; STEP; STEP;
               STEP; STEP; STEP; STEP;
       }
}