Program on old fortran IV

[Bob Wilkinson]

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
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