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Linux 2.6 - man page for wcscoll (linux section 3posix)

WCSCOLL(P)			    POSIX Programmer's Manual			       WCSCOLL(P)

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 interpreted as appropriate to the LC_COLLATE
       category of the current locale.

       The wcscoll() function shall not change the setting of errno if successful.

       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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003				       WCSCOLL(P)


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