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From: Bob Wilkinson <bob.wilkinson@cristie.com>
To: Joao Martins Correia <Guilherme.Correia@cern.ch>
Cc: "gcc-help@gcc.gnu.org" <gcc-help@gcc.gnu.org>
Subject: Re: Program on old fortran IV
Date: Thu, 30 Apr 2020 15:59:42 +0100	[thread overview]
Message-ID: <20200430145942.GB2626659@cristie.com> (raw)
In-Reply-To: <CCFF751B-6479-4CC6-BEC4-C07F4105A632@cern.ch>

On Wed, Apr 29, 2020 at 01:37:25PM +0000, Joao Martins Correia wrote:
> Dear Gcc Helpers
> 
> I recovered an old scientific program code written in Fortran IV.
> Still using hollerith assignments - which I think I understand, I can compile it with the many warnings
> regarding essentially 3 things
> 
> The program starts running, properly, reads input files and execute some routines, but then gets stuck with strange huge
> numbers that have no apparent reason to be there.
> The problem is in fact that there are no assignment of variable types and there are many commons with different variable names
> that contribute to the confusion when debugging. Setting “implicit none” creates too many errors, since sometimes is not easy
> to assign the type of the variable on a code with 30 routines and more than 5000 lines.

It is many years since I did any FORTRAN programming, but I vaguely
remember that implicit none could be used on a subroutine by
subroutine basis (though that is probably compiler-dependent).

If this works for you, it may make your job easier. I do not like
implicit ...

Bob
-- 
"We are in the beginning of a mass extinction, and all you can talk
about is money and fairy tales of eternal economic growth."
  - Greta Thunberg

  parent reply	other threads:[~2020-04-30 14:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-29 13:37 Joao Martins Correia
2020-04-29 14:24 ` Tim Prince
2020-04-30 14:59 ` Bob Wilkinson [this message]
2020-04-30 16:34   ` Joao Martins Correia

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