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SWAB(3) FreeBSD Library Functions Manual SWAB(3)
NAME
swab - swap adjacent bytes
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <unistd.h>
void
swab(const void * restrict src, void * restrict dst, ssize_t len);
DESCRIPTION
The function swab() 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.
SEE ALSO
bzero(3), memset(3)
HISTORY
A swab() function appeared in Version 7 AT&T UNIX.
FreeBSD 14.0-RELEASE-p6 March 4, 2012 FreeBSD 14.0-RELEASE-p6