Thread: recalling data

If you're going to use system() so much, you may as well write a batch file!.

> system("cd desktop");
Is the most useless thing in the universe?

Why?
Your program is in directory foo
You do system("cd desktop");
A new process is created, and a cmd.exe is run
The cd command is run in that new process (so it is now in foo/desktop)
The new process exits.
Your code is still in directory foo.

Code:

	ifstream verpass ( "password.txt" );
	if ( 
	string pass;
	cout << "Please Enter Your Passsword: ";
	cin >> pass;
	ofstream passfile ( "password.txt" );

1. Why are you opening the same file twice?
2. What is that bare if ( doing?

My advice is you start with a lot more reading, and then try "hello world" again, because it seems like you're just stumbling around in the dark hoping to find something useful.

oh duh! that makes sense! thanks!

but one last problem --> what method would i use to verify whats in the textfile? I know you have to do a ifstream to the file but im having the problem of how i would compare the two strings.

Code:

                string passwordmade;
		cout << "Please Enter Your Password: ";
		cin >> passwordmade;
		ifstream passwordconfirm ( "passwordverify.txt" );
		if ( passwordmade ==

and tthis is where i go blank

(this is after the text file is confirmed and the program asks to verify the contents of the text file.)

You could try something like this.

Code:

//declare string to hold file name
string filename;
 
//obtain file name
cout << "enter file name/path" << endl;
cin >> filename;
 
//declare ifstream to read from file
ifstream filein(filename.c_str());
 
//see if file opened or not
if(!filein)
{
  //file didn't open
  cout << "unable to open " << filename << endl;
 
//file called file name may not exit or you have 
//incorrect path to file or whatever
}
else
{
  //file did open
 
  //declare string to hold password from file
  string password = "empty";
 
  //read file data into password
  filename >> password;
 
  if(password == "empty")
  {
	//file called filename existed but was empty
	cout << "no password in " << filename << endl;
  }
  else
  {
	//declare string for user input
	string input;
 
	 //ask user for input
	cout << "enter password" << endl;
	cin >> input;
 
	//compare user input to password from file
	if(password == input)
	{
	  cout << "proceed" << endl;
	}
	else
	{
	  cout << "try again" << endl;
	}
  }
}