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TOWUPPER(3)              BSD Library Functions Manual              TOWUPPER(3)

NAME
     towupper, towupper_l -- lower case to upper case letter conversion (wide character version)

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <wctype.h>

     wint_t
     towupper(wint_t wc);

     #include <wctype.h>
     #include <xlocale.h>

     wint_t
     towupper_l(wint_t wc, locale_t loc);

DESCRIPTION
     The towupper() function converts a lower-case letter to the corresponding upper-case letter.

     Although the towupper() function uses the current locale, the towupper_l() function may be passed a
     locale directly. See xlocale(3) for more information.

RETURN VALUES
     If the argument is a lower-case letter, the towupper() function returns the corresponding upper-case
     letter if there is one; otherwise, the argument is returned unchanged.

SEE ALSO
     iswupper(3), toupper(3), towlower(3), wctrans(3), xlocale(3)

STANDARDS
     The towupper() function conforms to ISO/IEC 9899:1999 (``ISO C99'').

BSD                             October 3, 2002                            BSD