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



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

NAME
       wmemcmp - compare wide characters in memory

SYNOPSIS
       #include <wchar.h>

       int wmemcmp(const wchar_t *ws1, const wchar_t *ws2, size_t n);


DESCRIPTION
       The  wmemcmp()  function  shall  compare  the first n wide characters of the object pointed to by ws1 to the first n wide
       characters of the object pointed to by ws2.  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 behave as  if  the
       two objects compare equal.

RETURN VALUE
       The  wmemcmp()  function  shall  return an integer greater than, equal to, or less than zero, respectively, as the object
       pointed to by ws1 is greater than, equal to, or less than the object pointed to by ws2.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       wmemchr(), wmemcpy(), wmemmove(), wmemset(), the Base Definitions volume of IEEE Std 1003.1-2001, <wchar.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, Copy-
       right (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.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                   WMEMCMP(3P)