Cutting up files

Sometimes, you may want to cut up files to make them transportable by floppy disk. I'm trying to write a program to do this, but it's not working, as usual :P Here's what I've got :

Code:

---

void cut(char* filename, int filesizes)
{
    clrscr();
    fin.open(filename, ios::in | ios::nocreate);
    if(!fin)
    {
        t("File not found. Exiting program...");
        Sleep(1500);
        exit(EXIT_SUCCESS);
    }
    string fileout = "";
    int counter = 0;
    int counter2 = 0;
    char temp[1];
   
    while(!fin.eof())
    {
        counter++;
        counter2 = 0;
        fin >> temp[0];
        fileout += filename;
        fileout += ".";
        fileout += counter;
        fileout += ".rps";
        fout.open(fileout.c_str(), ios::out);
        while(counter2 < 1024*filesizes)
        {
                if(fin.eof())
                {
                        fin.close();
                        fout.close();
                        exit(EXIT_SUCCESS);
                }
                cout << "1, ";
                fout << temp[0];
                counter2++;
        }
        fout.close();
        cout << "ONE FILE WRITTEN ! --------------------" << endl;
        Sleep(1000);
    }
   
}

---

As you can see, I annotated it to see what happens, but I get no files written, and I get this continuing past the EOF...

If I explain my code : the user types in a filename, and a filesize for each of the smaller files to be. This size is in kilobytes, which is why I write out 1024 times this number, as I write out a byte at a time. Void t is simply a typewriter effect for cout. It's probably something I've missed, but I can't see it.

Thanks for your help.

It seems like what you're looking for is what split does. Split can be found here:

http://www.gnu.org/directory/textutils.html

The source is available to you from there as well if you just want to see how they did what they did.

~SK

Thanks, I'll have a look at that. However, can you tell me what's wrong with my code ? Thanks.

Your code is a fragment and doesn't contain any comments whatsoever, so it's difficult to see what you are trying to do.

However, one thing I can see is that your "while(counter2 < 1024*filesizes)" loop never reads from the input file, which I think it's not what you want...

first of all, open the file with std::ios::binary, second get the file size from a call to seekg(0,std::ios::end) and tellg() third, use the file size that you got instead of the eof() call to tell you got to the end. That is all. Goodbye.