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
       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 cur-
       rent locale.

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

GNU                               1999-07-25                       towupper(3)