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From: jwhite@dtoa3.dt.navy.mil (White)
Newsgroups: comp.lang.fortran
Subject: Re: Using Data Files in MS Fortran 5.0
Message-ID: <2898@nems.dt.navy.mil>
Date: 9 Aug 90 12:55:59 GMT
References: <90218.171331TEB106@psuvm.psu.edu>
Sender: news@nems.dt.navy.mil
Reply-To: jwhite@dtoa3.dt.navy.mil (Joseph White)
Organization: David Taylor Research Center, Bethesda, MD
Lines: 37

In article <90218.171331TEB106@psuvm.psu.edu> TEB106@psuvm.psu.edu (Tom billet) writes:
>Hi,
>
>I recently purchased the new version of MicroSoft Fortran 5.0.  I have never
> used any previously version of MicroSoft Fortran and would like to use a data
>file in an existing Fortran program.  I looked at all the command line
>parameters and do not see a way to include a data file.  For example, the
>previous version of Fortran allows me to type the following command to include
>a data file: F fortran program name<indata file>outdata file
>The F is the name of the fortran compiler and the rest is just redirection
>commands.  Is there a similar way in Fortran 5.0?  Thanks in advance.
>
>                                                   teb106

If you have Version 5.0, then you all ready have what you need. There
are additional procedures that were added to Version 5.0 to read the
commandline arguments.  The two routines are NARGS() and
CALL GETARG (n, buffer, status).  They are referanced in section 5.3.3,
page 271 of the Reference Manual.  Just add these to the beginning of
the program, maybe with some code to get the filenames from the user
if they are not on the commandline, and your commandline will look something
like this:

C:\> FortranProgName InFileName OutFileName

Another less elegant way to do it is to open the two file with
File = '' and use the same commandline.  The first unit open is given the
InFileName and the second is given the OutFileName, If the user doesnot
enter and InFileName or OutFileName the they will be asked for a filename
for unit XX.  If they didn't write the program then they might not know
what unit XX is supposed to be.  For info on this method see Page 203
in the same manual.


Hope this helps you

Joe White jwhite@dtoa3.dt.navy.mil