'Record::getTitle': non-standard syntax; use '&' to create a pointer to member
'Record::getUsername': non-standard syntax; use '&' to create a pointer to member
'Record::getPassword': non-standard syntax; use '&' to create a pointer to member

writeToFile(firstRecord.getTitle, firstRecord.getUsername, firstRecord.getPassword);

#include <iostream>
#include <string>
#include <fstream>
#include <map>
#include <functional>
using namespace std;

string GetInput();
void MainMenu();
void Title();
void AddRecord();
void writeToFile(string title, string username, string password);

class Record {

private:

    string id;
    string title;
    string username;
    string password;
    static int numberOfRecords;

public:

    void setTitle(string title) {
        this->title = title;
    }
    string getTitle() {
        return title;
    }

    void setUsername(string username) {
        this->username = username;
    }
    string getUsername() {
        return username;
    }

    void setPassword(string password) {
        this->password = password;
    }
    string getPassword() {
        return password;
    }

    static int GetNumberOfRecords() {
        return numberOfRecords;
    }
};

struct MenuAction {

    string description;
    function<void()> action;
};

static const map <string, MenuAction> actionTable{

    { "1",{ "Add entry", []() { AddRecord(); } } },
    { "2",{ "Edit entry", []() { cout << "Edit entry" << "n";  } } },
    { "q",{ "Quit", []() { cout << "Quit" << "n";  } } }
};

int main() {

    Title();
    MainMenu();

    return 0;
}

void Title() {

    cout << "======================================n"
            "|              Database              |n"
            "======================================nn";
}

void MainMenu() {

    for (auto const& x : actionTable) {
        cout << x.first << ". " << (x.second).description << "n";
    }

    string input;

    while (actionTable.count(input) == 0) {
        input = GetInput();
    }

    actionTable.at(input).action();
}

void AddRecord() {

    cout << "============= Add Record ============" << endl << endl;

    string id;
    string title;
    string username;
    string password;

    cout << "Title: ";
    getline(cin, title);
    cout << "Username: ";
    getline(cin, username);
    cout << "Password: ";
    getline(cin, password);

    Record firstRecord;
    firstRecord.setTitle(title);
    firstRecord.setUsername(username);
    firstRecord.setPassword(password);

    writeToFile(firstRecord.getTitle, firstRecord.getUsername, firstRecord.getPassword);
}

string GetInput() {

    string s = "";

    cout << ">> ";
    getline(cin, s);

    return s;
}

void writeToFile(string title, string username, string password) {

    ofstream outFile;

    outFile.open("database.txt", ios_base::app);
    outFile << title << "t" << username << "t" << password << "n";

    cout << "============= Record Added To Database ============" << endl;
}