I wanted to ask whether it is possible for the same project was code from Fortran 77 and Fortran 95 simultaneously. Large amount of code we already have in Forran 77, but new things I wanted to do it in Fortran 95. I tried it and it seems that it works. I'm interested to see if it is in principle possible? I'm not sure about the accuracy of the solution. That's why I'm interested in the viewexperienced programmer.