Author: Tony Werten
Date: 10:41:06 01/06/06
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On January 06, 2006 at 11:54:27, Gerd Isenberg wrote: >>>But doesn't hiding the implementation for this scalar wrapper class - without >>>any virtuals - also imply that it don't cares whether a public interface is used >>>internally but also privat members? >> >>Sorry Gerd, I don't quite understand your question. >>Can you try to rephrase it? >> >>Best, >>Alex > >If isAdjacent is a const member or friend, it has read access to >private/proteceted members - but is not forced to do so - it may also use the >public interface only. If so, should that be a reason to make the function not >member or friend? > >Making a function a member of a class or not - should imho not only depend on >its access rights, but also on the semantic and logical relations of the >function. > >I mean with some point and rectangle classes - i found it so far somehow natural >or at least familiar to have the boolean isPointInRect as member of a rectangle. Hmm, it seems I have different thoughts. I agree with the above. isPointInRect could be a member of CRectangle, but not of CPoint. By the same reasoning, a CSquare should not have an IsAdjacent, but a CBoard (containing CSquares) should. Cheers, Tony > >May be my autodidactical oo-knowledge needs some lifting ;-) > >Gerd
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