I think that block arguments are like method arguments and are read only. Now I do not remember.
On Wed, Sep 13, 2017 at 8:39 PM, Stephan Eggermont <step...@stack.nl> wrote: > On 13/09/17 19:22, Mark Bestley wrote: > >> Unfortunatley not. That error has gone but I now get > >> >> >> x := x rounded. > > > Yes, that is the question I posed. > Assignment to block variables is prohibited now? > > Stephan > > > >