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Linux 2.6 - man page for towupper (linux section 3)

TOWUPPER(3)			    Linux Programmer's Manual			      TOWUPPER(3)

NAME
       towupper - convert a wide character to uppercase

SYNOPSIS
       #include <wctype.h>

       wint_t towupper(wint_t wc);

DESCRIPTION
       The  towupper()	function is the wide-character equivalent of the toupper(3) function.  If
       wc is a wide character, it is converted to uppercase.  Characters which do not  have  case
       are returned unchanged.	If wc is WEOF, WEOF is returned.

RETURN VALUE
       The towupper() function returns the uppercase equivalent of wc, or WEOF if wc is WEOF.

CONFORMING TO
       C99.

NOTES
       The behavior of towupper() depends on the LC_CTYPE category of the current locale.

       This function is not very appropriate for dealing with Unicode characters, because Unicode
       knows about three cases: upper, lower and title case.

SEE ALSO
       iswupper(3), towctrans(3), towlower(3)

COLOPHON
       This page is part of release 3.55 of the Linux man-pages project.  A  description  of  the
       project,     and    information	  about    reporting	bugs,	 can	be    found    at
       http://www.kernel.org/doc/man-pages/.

GNU					    1999-07-25				      TOWUPPER(3)


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