Won't write to file after getline()

[sullen eagle]

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[proven basalt]

you need to give it a mode i believe so it would be std::fstream file("password.txt", file.in | file.out);

[normal yarrow]

Perhaps just for my own curiosity, where in the opened file did you hope file<<encode(Password,Password.length()); would actually write to?

Btw, std::fstream by default opens the file for reading and writing (see https://en.cppreference.com/w/cpp/io/basic_fstream/basic_fstream).

Wonder if the getline is causing a badbit or failbit which needs to be cleared.

what happens if after the getline and before the file << encode..., you call file.clear();?

[proven basalt]

That's just intellisense, if the file doesn't exist you also need std::fstream::app

std::fstream file("password.txt", std::fstream::in | std::fstream::out | std::fstream::app);

or std::ios::in/out/app

[proven basalt]

You sure the app is looking in the write place then?

What are you using for your IDE?

[proven basalt]

Well using std::fstream file("password.txt", std::ios::in | std::ios::out | std::ios::app);
Should always make sure that the file is opened or makes a new file. so you know if it makes a new empty file you'll have put it in the wrong place

[proven basalt]

int main() {
    //open the file
    std::fstream file("password.txt", std::ios::in | std::ios::out | std::ios::app);
    std::string Password;
    //get the first line of the file
    std::getline(file, Password, '\n');

    file.clear();
    file.seekp(0, std::ios::end);
    file << encode(Password, Password.length());
}

That should work