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The given character is mapped to its uppercase equivalent according to Unicode 2.1.2; if the character has no uppercase equivalent, the character itself is returned.

utoupper() only deals with the general letter case conversion. For language specific case conversion behavior, use ustrToUpper(). For example, the case conversion for dot-less i and dotted I in Turkish, or ess-zed (i.e., "sharp S") in German.

Returns:

the uppercase equivalent of the character, if any; otherwise the character itself.

Parameters:

ch - the character to be converted