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VMS Libraries and Compaq Visual Fortran

VMS Libraries and Compaq Visual Fortran

VMS Libraries and Compaq Visual Fortran

I am working on a project that is about to begin a migration from a VAX/VMS environment to a WIN2K environment.  The software on the VAXes is written in Fortran.  In order to perform the migration we decided to test four different Fortran compilers, one of which is Visual Fortran.  We are still in the evaluation phase, but are convinced that Visual Fortran will end up being the best solution for us.

The Fortran code that we need to port over to the Windows machines calls a number of VMS library functions.  We use VMS System Services, as found in the Macro Library STARLET, and Run Time Library (RTL) routines from LIB$ (e.g. LIB$WAIT) and STR$ (e.g.STR$TRIM) extensively. Does anyone know of any package that allows for these calls so that we do not have to rewrite the code any more than necessary?  Any help that you can provide us will be greatly appreciated.

        Mark Hatch

RE: VMS Libraries and Compaq Visual Fortran

Dear Mark:

I saw your post only today.
You are right, COMPAQ VISUAL FORTRAN is your only choice.
I do not know exactly waht type of Fortran you will be migrating, but I am sure you will have all compatibility in newer Fortran. But the SYNTAX might be different.
Furthermore, if your Fortran is in FORTRAN4.0, or FORTRAN77, then some of the syntax are no more valid in Fortran90.

Best thing to do is to open a  Project (that's the way to do in Visual Fortran Environment), and add your Fortran file as FIXED FORMAT, rather than FREE format. Although I like the free format a lot, but importing old routine may create some problem.

You can send me mail directly if you have any further questions..



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