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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 .