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Function Details : towupper

wint_ttowupper(wint_t wc) ;

Return Type : wint_t

An integer type capable of storing any wide character value or the special value WEOF, used in wide-character input/output functions.

Read about return values of towupper function .

1st Parameter Type : wint_t

An integer type capable of storing any wide character value or the special value WEOF, used in wide-character input/output functions.

1st Parameter

The wide character to be converted to uppercase. Must be a valid `wint_t` value or `WEOF`.

Read more about parameters of towupper in parameters section

The towupperfunction in C language Converts a wide character to uppercase.

The towupper function converts a lowercase wide character to the corresponding uppercase wide character. If the argument is not a lowercase letter, it is returned unchanged. This function is the wide-character counterpart of toupper and is used for case conversion in wide character text processing.

The towupperfunction takes 1 parameter:

•
wint_t `wc`: The wide character to be converted to uppercase. Must be a valid `wint_t` value or `WEOF`.

Converts the given wide character `wc` to its uppercase equivalent if it is a lowercase letter. If `wc` is not a lowercase letter, the function returns `wc` unchanged. If `wc` is `WEOF`, the function returns `WEOF`.

The towupper function return value :

If wc is a lowercase letter, returns the corresponding uppercase letter
Otherwise, it returns wc unchanged

Output

This example demonstrates towupper on both lowercase and uppercase wide characters.