> |if not SomeFunction <> Constant_Of_Sometype then {null}; Of course, usually it's without the "not"... ;) And with Boolean functions it's a bit easier.
And I should have added that I never put in comments what I can easily put in code. At first, comments don't get compiled, and second, nobody never seems to read them, anyway. Vinzent. -- GMX startet ShortView.de. Hier findest Du Leute mit Deinen Interessen! Jetzt dabei sein: http://www.shortview.de/[EMAIL PROTECTED] _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal