Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!wuarchive!udel!rochester!spot!jeyadev From: jeyadev@rocksanne.uucp Newsgroups: comp.lang.fortran Subject: Re: implicit none Message-ID: <477@spot.wbst128.xerox.com> Date: 3 Aug 90 18:42:00 GMT References: Sender: news@spot.wbst128.xerox.com Reply-To: jeyadev@monolith.UUCP () Distribution: comp Organization: Xerox Corporation, Webster Research Center Lines: 24 In article davis@pacific.mps.ohio-state.edu (John E. Davis) writes: >Hi, > VMS fortran has an extension to fortran that forces me to declare all >variable. It is the statement 'implicit none'. This is a great construct and >I refuse to program fortran on machines that do not support something like >this. I was wondering if this will be a part of Fortran 90. Also, what is >the best way to simulate this effect? > I do hope that it will become part of standard. I have not done a lot of Fortran work on VMS, and I was unaware of this facility till a ffew days ago. However, I have saved a lot of time, by forcing declarations by putting the statement implicit logical (a-z) above all the other declarations. This catches the errors that arise from the mistyping of variable names -- my favourite failure mode! -- Surendar Jeyadev Internet: jeyadev.wbst128@xerox.com Time is just nature's way of keeping everything from happening all at once