Need help using OSX directories in c++

Question

I am currently trying to output the contents of the hosts file and eventually once I figure this part out, I will add entries and delete them later (which is why I am using fstream (I think?)) I am not extremely versed in programming and need some direction as I have never programmed for OSX before.

My program seems to not be able to navigate to the directory and returns with "Unable to open file" when I run it. How can I specify the correct directory? I am used to Windows where you can specify C:, D:, E; drives.

fstream f ("/private/etc/hosts");
        if (f.is_open())
        {
            while (f.good())
            {
                getline (f,line);
                cout << line << endl;
            }
            f.close();
        } else
            cout << "Unable to open file" << endl;

Answer 1

Backslash \\ is Windows-specific directory separator. Use proper slash / .