towupper() -- convert wide character to uppercase

SYNOPSIS

#include <wctype.h>

wint_t towupper(wint_t wc);

DESCRIPTION

The towupper() function converts a lowercase letter to the corresponding uppercase letter. The call towupper(wc)is equivalent to:

towctrans(wc, wctrans("toupper"));

PARAMETERS

wc: Is a wide character code corresponding to a valid character in the current locale or the value of the macro WEOF.

If the parameter is a wide character for which iswlower() is true and there is a corresponding wide character for which iswupper() is true, the towupper() function returns the corresponding wide character. Otherwise, the parameter is returned unchanged.