On Wed, 2009-10-07 at 07:22 +0200, Jürgen Hestermann wrote:
> Therefore, there is absolutly no difference between > > TFigure = record > X : TShapeList; > case TShapeList of > Rectangle: (Height, Width: Real); > Triangle: (Side1, Side2, Angle: Real); > Circle: (Radius: Real); > Ellipse, Other: (); > end; > > and > > TFigure = record > case X : TShapeList of > Rectangle: (Height, Width: Real); > Triangle: (Side1, Side2, Angle: Real); > Circle: (Radius: Real); > Ellipse, Other: (); > end; > > It ends up in the same record and also the programmer does not see any > difference. He can store whatever he wants in X in both cases. It has no > influences on the variants. True. The second example has better style, though. But the point is that X can be completely omitted. E. g. you have the freedom to encode the information contained in X in some other way. It might be derived from a name or a part number. Anton _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
