bionic (3) wmemmove.3posix.gz

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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.1‐2008 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.1‐2008, <wchar.h>


       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers,  Inc
       and  The  Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/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 .