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SWAB(3) Library Functions Manual SWAB(3)

swab — swap adjacent bytes

library “libc”

#include <unistd.h>

void
swab(const void * restrict src, void * restrict dst, ssize_t len);

The function () copies len bytes from the location referenced by src to the location referenced by dst, swapping adjacent bytes.

The argument len must be an even number. If len is less than zero, nothing will be done.

bzero(3), memset(3)

A swab() function appeared in Version 7 AT&T UNIX.

March 4, 2012 FreeBSD-12.0