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From: chau@xenon.arc.nasa.gov (Dung Chau)
Newsgroups: comp.lang.fortran
Subject: SAVEing FORTRAN variables
Message-ID: <1991Feb15.000230.18585@news.arc.nasa.gov>
Date: 14 Feb 91 20:12:48 GMT
Sender: usenet@news.arc.nasa.gov (USENET Administration)
Reply-To: chau@xenon.arc.nasa.gov
Organization: NASA-Ames Research Center
Lines: 18
News-Software: VAX/VMS VNEWS 1.3-4

I am looking for a tool which scans FORTRAN source code and identifies 
variables which should be saved.  

This is a simple example of a FORTRAN source code that needs to scan
and insert a SAVE statement:

      subroutine sub (val)
      integer val, i
      data i/10/

   10 val = val * i
      i = i -1
      goto 10
      return
      end

When subroutine sub is called the second time the value of i may not be the 
same.  Therefore, it needs to have a SAVE statement to make i become static.