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

       wmemmove — copy wide characters in memory with overlapping areas

SYNOPSIS

       #include <wchar.h>

       wchar_t *wmemmove(wchar_t *ws1, const wchar_t *ws2, size_t n);

DESCRIPTION

       The  functionality  described  on  this  reference  page is aligned with the ISO C standard. Any conflict
       between the requirements described  here  and  the  ISO C  standard  is  unintentional.  This  volume  of
       POSIX.1‐2017 defers to the ISO C standard.

       The  wmemmove()  function  shall  copy  n wide characters from the object pointed to by ws2 to the object
       pointed to by ws1.  Copying shall take place as if the n wide characters from the object  pointed  to  by
       ws2  are  first  copied  into  a  temporary  array of n wide characters that does not overlap the objects
       pointed to by ws1 or ws2, and then the n wide characters from the temporary array  are  copied  into  the
       object pointed to by ws1.

       This  function  shall  not be affected by locale and all wchar_t values shall be treated identically. The
       null wide character and wchar_t values not  corresponding  to  valid  characters  shall  not  be  treated
       specially.

       If  n  is  zero, the application shall ensure that ws1 and ws2 are valid pointers, and the function shall
       copy zero wide characters.

RETURN VALUE

       The wmemmove() function shall return the value of ws1.

ERRORS

       No errors are defined

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       wmemchr(), wmemcmp(), wmemcpy(), wmemset()

       The Base Definitions volume of POSIX.1‐2017, <wchar.h>

COPYRIGHT

       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                                      WMEMMOVE(3POSIX)