Hi all,
I'm new to Fortran programming, so I might probably ask some really trivial questions - please forgive me.
I have two source codes of big programs. One is coded in Fortran77 and the other one in Fortran90.
Now, I need to build an interface so that the Fortran90 program can call some subroutines/functions in the Fortran77 program.
Now, I know that usually you would use a module for that purpose: just put all the subroutines and functions you want inside the module, and call it from your main program.
However, in my case, the two programs are very big and spread across many files and obviously there are two "program units. Does that change anything? If so, how?
In general, what would you suggest be the best way of building such an interface between the two?
Cheers,
Dave
I'm new to Fortran programming, so I might probably ask some really trivial questions - please forgive me.
I have two source codes of big programs. One is coded in Fortran77 and the other one in Fortran90.
Now, I need to build an interface so that the Fortran90 program can call some subroutines/functions in the Fortran77 program.
Now, I know that usually you would use a module for that purpose: just put all the subroutines and functions you want inside the module, and call it from your main program.
However, in my case, the two programs are very big and spread across many files and obviously there are two "program units. Does that change anything? If so, how?
In general, what would you suggest be the best way of building such an interface between the two?
Cheers,
Dave