swab(3C) swab(3C)
NAME
swab - swap bytes
SYNOPSIS
void swab (from, to, nbytes)
char *from, *to;
int nbytes;
DESCRIPTION
swab copies nbytes bytes pointed to by from to the array
pointed to by to, exchanging adjacent even and odd bytes.
It is useful for carrying binary data between PDP-11s and
other machines. 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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