NAME

       towupper - transliterate lowercase wide-character code to uppercase

SYNOPSIS

       #include <wctype.h>

       wint_t towupper(wint_t wc);

DESCRIPTION

       The towupper() function has as a domain a type wint_t, the value of which the application shall ensure is
       a  character  representable as a wchar_t, and a wide-character code corresponding to a valid character in
       the current locale or the value of WEOF. If the argument has any other value, the behavior is  undefined.
       If  the  argument  of  towupper()  represents  a  lowercase  wide-character  code,  and  there  exists  a
       corresponding uppercase wide-character code (as defined by character  type  information  in  the  program
       locale  category  LC_CTYPE  ),  the result shall be the corresponding uppercase wide-character code.  All
       other arguments in the domain are returned unchanged.

RETURN VALUE

       Upon successful completion, towupper() shall return the uppercase letter corresponding  to  the  argument
       passed. Otherwise, it shall return the argument unchanged.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

       None.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       setlocale()  ,  the  Base  Definitions  volume  of  IEEE Std 1003.1-2001,  Chapter 7, Locale, <wctype.h>,
       <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition,
       Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open  Group  Base
       Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers,
       Inc  and  The  Open Group. 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.opengroup.org/unix/online.html .

IEEE/The Open Group                                   2003                                           TOWUPPER(P)