NAME
swab - swap bytes
SYNOPSIS
#include <unistd.h>
void swab(const void *restrict src, void *restrict dest,
ssize_t nbytes);
DESCRIPTION
The swab() function shall copy nbytes bytes, which are pointed to by
src, to the object pointed to by dest, exchanging adjacent bytes. The
nbytes argument should be even. If nbytes is odd, swab() copies and
exchanges nbytes-1 bytes and the disposition of the last byte is
unspecified. If copying takes place between objects that overlap, the
behavior is undefined. If nbytes is negative, swab() does nothing.
RETURN VALUE
None.
ERRORS
No errors are defined.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
The Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .