linux man page for towupper

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 upper-
       case.  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 3.27 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)