WCSNCMP(3P)                                         POSIX Programmer's Manual                                        WCSNCMP(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
       wcsncmp - compare part of two wide-character strings

SYNOPSIS
       #include <wchar.h>

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


DESCRIPTION
       The  wcsncmp() function shall compare not more than n wide-character codes (wide-character codes that follow a null wide-
       character code are not compared) from the array pointed to by ws1 to the array pointed to by ws2.

       The sign of a non-zero return value shall be determined by the sign of the difference between the  values  of  the  first
       pair of wide-character codes that differ in the objects being compared.

RETURN VALUE
       Upon  successful  completion,  wcsncmp()  shall return an integer greater than, equal to, or less than 0, if the possibly
       null-terminated array pointed to by ws1 is greater than, equal to,  or  less  than  the  possibly  null-terminated  array
       pointed to by ws2, respectively.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       wcscmp(), 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                                                   WCSNCMP(3P)