Manual Pages  — SWAB

swab – swap adjacent bytes

LIBRARY SYNOPSIS DESCRIPTION SEE ALSO HISTORY

Standard C Library (libc, -lc)

#include <unistd.h>

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

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.

A swab() function appeared in AT&T v7 .