On Tue, 12 Jan 2021 16:21:51 +0100, Andreas Pirklbauer wrote: > The full solution can be found here: > > > http://github.com/andreaspirklbauer/Oberon-allow-dereferenced-pointer-as-var-parameter Thank you for the quick and detailed analysis. And many thanks to all the others who responded and have given information. Greetings, chris