File write, without deleting old lines?

Question

I currently have this to write to a file in my program. I have all the variables ready to put into the file I just have an issue.

void fileWrite(int score)
{
    ofstream file;
    file.open("MathGen.txt");
    file << "The score was: " << score;
    file.close();
}

So when this runs it creates the files and writes the score perfectly fine. But if I re-run the program and get a new score it will overwrite the old score. Is there any way to stop this from happening? I know in python you could use file write functions such as "a+". But that doesn't work here.

Add `ios::ate` to the flags. – Mats Petersson Nov 27 '15 at 20:29 — Mats Petersson, Nov 27 '15 at 20:29

score 2 · Answer 1 · answered Dec 02 '15 at 15:20

2

You should use append mode on your file in ofstream.open:

file.open("MathGen.txt", std::ofstream::app);

More info on this method is here

answered Dec 02 '15 at 15:20

bytecode77

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File write, without deleting old lines?

1 Answers1