Return a copy of the string s, with each lower-case character replaced by the corresponding upper-case one; nonalphabetic characters are left unchanged. For example, toupper ("MiXeD cAsE 123") "MIXED CASE 123"
Return a copy of the string s, with each lower-case character replaced by the corresponding upper-case one; nonalphabetic characters are left unchanged. For example,
toupper ("MiXeD cAsE 123") "MIXED CASE 123"