wcscoll man page on Gentoo

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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, wcscoll_l — wide-character string comparison  using  collating
       information

SYNOPSIS
       #include <wchar.h>

       int wcscoll(const wchar_t *ws1, const wchar_t *ws2);
       int wcscoll_l(const wchar_t *ws1, const wchar_t *ws2,
	   locale_t locale);

DESCRIPTION
       For  wcscoll():	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 wcscoll() and wcscoll_l() functions shall compare the  wide-charac‐
       ter 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, or the locale represented by locale, respectively.

       The wcscoll() and wcscoll_l() functions 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() or wcscoll_l().  If errno is non-zero on
       return, an error has occurred.

       The behavior is undefined if the locale argument to wcscoll_l() is  the
       special	locale object LC_GLOBAL_LOCALE or is not a valid locale object
       handle.

RETURN VALUE
       Upon successful completion, wcscoll() and wcscoll_l() 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, or to the locale rep‐
       resented	 by  locale, respectively. On error, wcscoll() and wcscoll_l()
       shall set errno, but no return value is reserved to indicate an error.

ERRORS
       These functions 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 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 Electri‐
       cal 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.ker‐
       nel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2013			   WCSCOLL(3P)
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