redhat man page for swab

SWAB(3) 						     Linux Programmer's Manual							   SWAB(3)

NAME
       swab - swap adjacent bytes

SYNOPSIS
       #include <unistd.h>

       void swab(const void *from, void *to, ssize_t n);

DESCRIPTION
       The swab() function copies n bytes from the array pointed to by from to the array pointed to by to, exchanging adjacent even and odd bytes.
       This function is used to exchange data between machines that have different low/high byte ordering.

       This function does nothing when n is negative.  When n is positive and odd, it handles n-1 bytes as above, and does  something  unspecified
       with the last byte.  (In other words, n should be even.)

RETURN VALUE
       The swab() function returns no value.

CONFORMING TO
       SVID 3, BSD 4.3, POSIX 1003.1-2001

SEE ALSO
       bstring(3)

								    2001-12-15								   SWAB(3)