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The Uppercase Option

uppercase formatter causes the conversion to use uppercase where appropriate SpecifierEffect %ACauses the hexadecimal digits a through f to be displayed in uppercase as A through F. Also, the prefix 0x is displayed as 0X, and p is displayed as P. %BUppercases the values true and false %CUppercases the corresponding character argument. %ECauses the e symbol that indicates the exponent to be displayed in uppercase. %GCauses the e symbol that indicates the exponent to be displayed in uppercase. %HCauses the hexadecimal digits a through f to be displayed in uppercase as A through F. %SUppercases the corresponding string. %TCauses all alphabetical output to be displayed in uppercase. %XCauses the hexadecimal digits a through f to be displayed in uppercase as A through F. Also, the optional prefix 0x is displayed as 0X, if present.