Dear Bob Many thanks for answering. The problem is that it is difficult to identify the right type of variables they use without going trough the complexity of the program … They are mixing integer with real all the time and no respect for precision ... I think that I have no other way to go than the painful one, line by line. Thanks again and Best regards JG > On 30Apr, 2020, at 16:59, Bob Wilkinson <bob.wilkinson@xxxxxxxxxxx> wrote: > > 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
