Get specific line from text file

[trojsi]

I am trying to get a specific line in a text file which only has one word per line and copy it to a string. Can anyone give a simple example?

thanks

[VictorN]

You cannot "get" it directly from a file.
You should read the whole file line-by-line and only save the lines you do need.

[trojsi]

thanks I figured that one out, how about writing a word to the line you want.

Is it possible to post an example please?

thanks

[VictorN]

The same way: read the file, change the line you want to, then write in to the file back (overwriting it)

[trojsi]

This is what I used to read a specific line. :

ifstream f("input.txt");
	string s;
	getline(f, s);
	getline(f, s);
	getline(f, s); //here is 3rd line
	
	f.close();
	
	cout << s << endl;

I need to overwrite that line now, can you post some hints pls.

thanks

[VictorN]

You cannot overwrite "one line only". You have to overwrite the whole tail of the file beginning with this line.

[trojsi]

Where can I find more examples using the fstream and familiarize myself with it?

thanks

[VictorN]

1. MSDN
2. Google
3. CG Forums.

Just search for the appropriate examples/samples...