Data commit

Task/Exceptions/Standard-ML/exceptions-1.ml

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+exception MyException;
+exception MyDataException of int; (* can be any first-class type, not just int *)

Task/Exceptions/Standard-ML/exceptions-2.ml

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+fun f() = raise MyException;
+fun g() = raise MyDataException 22;

Task/Exceptions/Standard-ML/exceptions-3.ml

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+val x = f() handle MyException => 22;
+val y = f() handle MyDataException x => x;