[DynareDev] [Trac] #280: Implement @#ifndef

#280: Implement @#ifndef --------------------------+----------------------- Reporter: sebastien | Owner: sebastien Type: feature | Status: new Priority: major | Milestone: 5.0 Component: Preprocessor | Version: Keywords: | --------------------------+----------------------- -- Ticket URL: <https://www.dynare.org/trac/ticket/280> Dynare <http://www.dynare.org> The Dynare project