I want to update an object’s variables within a vector array of objects, using input from the user as to what variable they wish to update.

the code is:

class Employee {
public:
    std::string empID, empName, empTitle, empHireDate, empSalary;
    Employee() {}
    // constructor
    Employee(string id, string name, string title, string hireDate, string salary) :
        empID(id),
        empName(name),
        empTitle(title),
        empHireDate(hireDate),
        empSalary(salary)
    {}

    //returns the employee's ID
    string getEmpID() {
        return empID;
    }
};

(Operator== function, if you saw this project before, you know.)

class employeeMutator : public Employee 
    void updateEmployee(string input) {
        //requests what the user wants to update, and updates it
        if (input == "1") {
            cout << "what is the new name? ";
            string name;
            cin >> name;
            empName = name;
            cout << "updated.";
            cout << "n";
        }
        (...) repeat and change for other variables. Yes, yes, there is almost certainly a cleaner way to do
        this.
        }
    }
};

int Main() {
    vector <Employee> Payroll;
    Employee employee;

    (insert a few test employees here, they all have different IDs)

    string mutate;
    cout << "what would you like to update? '1' to update the name, '2' to update the title, '3' to update
    the hire date, and '4' to update the salary: ";
    cin >> mutate;

    //looks for what the user wants to update
    for (Employee employee : Payroll) {
        if (input == employee.getEmpID()) {
            employeeMutator update;
            update.updateEmployee(mutate);
        }
    }
};

The code compiles and runs, but when I use a display method, it shows the vector was never updated.

I’ve been looking at other similar posts on this and other websites, which haven’t helped, and they have been noting a possible copying of the vector. What’s is going on here exactly to cause the update to fail, and how can I fix it?