[Oberon] Eliminating RETURN statements

[August Karlstrom]

On 2020-04-08 01:30, Hans Klaver wrote:>    (* Oberon-07, right output *)
>    PROCEDURE Fit (i, j: INTEGER): BOOLEAN;
>      VAR k: INTEGER; OK: BOOLEAN;
>    BEGIN
>      k := 0; OK := TRUE;
>      WHILE (k <= piecemax[i]) & OK DO
>        IF p[i][k] THEN
>          IF puzzl[j + k] THEN OK := FALSE END
>        END;
>        INC(k)
>      END
>    RETURN OK
>    END Fit;

Here is an alternative:

	PROCEDURE Fit (i, j: INTEGER): BOOLEAN;
		VAR k: INTEGER;
	BEGIN
		k := 0;
		WHILE (k <= piecemax[i]) & ~(p[i, k] & puzzl[j + k]) DO
			INC(k)
		END
	RETURN k > piecemax[i]
	END Fit;


-- August