swab(3p) — Linux manual page

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

PROLOG         top

       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         top

       swab — swap bytes

SYNOPSIS         top

       #include <unistd.h>

       void swab(const void *restrict src, void *restrict dest,
           ssize_t nbytes);

DESCRIPTION         top

       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         top

       None.

ERRORS         top

       No errors are defined.

       The following sections are informative.

EXAMPLES         top

       None.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       The Base Definitions volume of POSIX.1‐2017, unistd.h(0p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 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 .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                          SWAB(3P)

Pages that refer to this page: unistd.h(0p)

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