Question

I need to pull usernames and passwords from a .txt file and I am having a difficult time wrapping my mind around how exactly to do this. I’ll try to break this down.

1. Open the file
2. Read in the Usernames
3. Compare a username against a user input
4. Compare a password against a user input associated with the username
5. return true or false if the username and passwords match

Yes, this is homework. And I am learning how to use the fstream while waiting for USPS to ship my class txt book. Your help is greatly appreciated!

Here is what I have so far:

bool User::check(const string &uname, const string &pass)
{
    //open the file

    fstream line;
    line.open("users.txt");

    //Loop through usernames
        //If a username matches, check if the password matches
}

The users.txt file looks like this:

ali87   8422

ricq7   bjk1903

messi   buneyinnessi

mike    ini99ou

jenny   Y00L11A09

end

Answer 1

Try this:
http://www.learncpp.com/cpp-tutorial/136-basic-file-io/