swab(3p) - phpMan

SWAB(3P)                   POSIX Programmer's Manual                  SWAB(3P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
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 .

IEEE/The Open Group                  2003                             SWAB(3P)