Issues with I/O in Multi-language compiling

Answer 1

I'd suggest going through your code with a critical eye, and checking out everything that looks even remotely odd.

I'd do it for you but C++ isn't in my rotation at the moment and I'm tripping on false positives. For example, this caught my eye:

if (!OutputFile.is_open())
{
    char FileName [] = "DensityDomain.txt";

    OutputFile.open(FileName);

    if (!OutputFile)
    {
        cerr << "Failed to open " << FileName << endl;
        exit(EXIT_FAILURE);  
    }

    //cout << "\nGenerating 'DensityDomain.txt'... \n" << endl;
}

Half way down you're testing if OutputFile is null, after already calling is_open() and open() on it. It looked to me as if either 1) OutputFile won't be null or 2) you shouldn't be calling methods on it before you test it. But I was wrong.

See what I mean?