I have an old piece of Fortran f77 code that I would like to understand and edit for future reuse. For that purpose, I would like this code to be translated to either C or Matlab / Octave language. I have found an instance of f2c exe online, but it wouldn't run because of inappropriate OS ( my OS is Win 7 x64, f2c wanted older x32 ).
My main concern is being able to understand the code. Translation in terms of execution efficiency is not of importance. I am open to any suggestion, apart from learning Fortran 77. I am aware of that option myself, but would do it only as a last resort. Thank you.
Since are using Octave, you can call Fortran code, there is no need to rewrite it. You will need to write a very simple C++ wrapper to it but Octave already provides macros to do all of the hard work. It is all documented on the manual. Actually, Octave itself calls on many fortran subroutines, so this is perfectly normal.
If you want to modify it, you should be learning Fortran then.