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

       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 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  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 POSIX.1‐2008, <wchar.h>

COPYRIGHT

       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 .