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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
       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
       ISO/ANSI C, UNIX98


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


NOTES
       The  behaviour  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.