55 lines
978 B
Plaintext
55 lines
978 B
Plaintext
MODULE Callback;
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IMPORT StdLog;
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TYPE
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Callback = PROCEDURE (x: INTEGER;OUT doubled: INTEGER);
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Callback2 = PROCEDURE (x: INTEGER): INTEGER;
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PROCEDURE Apply(proc: Callback; VAR x: ARRAY OF INTEGER);
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VAR
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i: INTEGER;
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BEGIN
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FOR i := 0 TO LEN(x) - 1 DO;
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proc(x[i],x[i]);
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END
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END Apply;
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PROCEDURE Apply2(func: Callback2; VAR x: ARRAY OF INTEGER);
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VAR
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i: INTEGER;
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BEGIN
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FOR i := 0 TO LEN(x) - 1 DO;
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x[i] := func(x[i]);
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END
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END Apply2;
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PROCEDURE Double(x: INTEGER; OUT y: INTEGER);
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BEGIN
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y := x * x;
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END Double;
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PROCEDURE Double2(x: INTEGER): INTEGER;
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BEGIN
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RETURN x * x
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END Double2;
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PROCEDURE Do*;
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VAR
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i: INTEGER;
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ary: ARRAY 10 OF INTEGER;
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BEGIN
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FOR i := 0 TO LEN(ary) - 1 DO ary[i] := i END;
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Apply(Double,ary);
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FOR i := 0 TO LEN(ary) - 1 DO
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StdLog.Int(ary[i]);StdLog.Ln
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END;
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StdLog.Ln;
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Apply2(Double2,ary);
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FOR i := 0 TO LEN(ary) - 1 DO
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StdLog.Int(ary[i]);StdLog.Ln
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END
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END Do;
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END Callback.
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