wmemmove(3p) — Linux manual page

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

       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(3p), wmemcmp(3p), wmemcpy(3p), wmemset(3p)

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

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(3P)

Pages that refer to this page: wchar.h(0p), wmemchr(3p), wmemcmp(3p), wmemcpy(3p), wmemset(3p)

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