var a: MatrixInt;
b: VectorInt;
begin
a.SetIt(3,3, [1,2,3,4,5,6,7,8,9]);
a.SetSubRange(0,2); //a = [1,2]
a.DisableSubrange;
a.SetSubRange(2,2); //exception raised here
b.SetSubRange(a,2,2); //but this will work
a.SetFullRange; //b is not changed, it still points to [4,5]
end;
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