SWAB(3C) SWAB(3C)
swab - swap bytes
#include <stdlib.h>
void swab(char *from, char *to, int nbytes);
swab copies nbytes bytes pointed to by from to the array pointed to by
to, exchanging adjacent even and odd bytes. Nbytes should be even and
non-negative. If nbytes is odd and positive swab uses nbytes-1 instead.
If nbytes is negative, swab does nothing.
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