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WCSCOLL(3P)		   POSIX Programmer's Manual		   WCSCOLL(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
       wcscoll - wide-character string comparison using collating information

SYNOPSIS
       #include <wchar.h>

       int wcscoll(const wchar_t *ws1, const wchar_t *ws2);

DESCRIPTION
       The wcscoll() function shall compare the wide-character string  pointed
       to  by  ws1 to the wide-character string pointed to by ws2, both inter‐
       preted as appropriate to the LC_COLLATE category of the current locale.

       The wcscoll() function shall not change the setting of  errno  if  suc‐
       cessful.

       An  application	wishing to check for error situations should set errno
       to 0 before calling wcscoll(). If errno is non-zero on return, an error
       has occurred.

RETURN VALUE
       Upon  successful	 completion, wcscoll() shall return an integer greater
       than, equal to, or less than 0, according to whether the wide-character
       string  pointed	to  by ws1 is greater than, equal to, or less than the
       wide-character string pointed to by ws2, when both are  interpreted  as
       appropriate  to	the  current  locale.	On  error, wcscoll() shall set
       errno, but no return value is reserved to indicate an error.

ERRORS
       The wcscoll() function may fail if:

       EINVAL The ws1 or ws2 arguments contain	wide-character	codes  outside
	      the domain of the collating sequence.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       The  wcsxfrm()  and wcscmp() functions should be used for sorting large
       lists.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       wcscmp(),    wcsxfrm(),	  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, Copyright (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.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			   WCSCOLL(3P)
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