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I have written my code for an employee management system that stores Employee class objects into...

I have written my code for an employee management system that stores Employee class objects into a vector, I am getting no errors until I try and compile, I am getting the error: C2679 binary '==': no operator found which takes a right-hand operand of type 'const std::string' (or there is no acceptable conversion). But I am not sure why any help would be great, Thank you!

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#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

class Employee
{
public:
        Employee();
        string GetName();
        string GetStatus();
        float GetSalary();
        int GetAge();
        int GetYearHired();

private:
        string m_Name;
        string m_Status;
        float m_Salary;
        int m_Age;
        int m_YearHired;

};

Employee::Employee()
{
        m_Salary = 0;
        m_Age = 0;
        m_YearHired = 0;
}

string Employee::GetName()
{
        string fName;
        string lName;
        cout << "Please enter the new employee's first name: ";
        cin >> fName;
        cout << "Please enter the new employee's last name: ";
        cin >> lName;
        m_Name = fName + lName;
        return m_Name;
}

string Employee::GetStatus()
{
        string status;
        cout << "Please enter the employee's status (full time, part time, or manager): ";
        cin >> status;
        return m_Status;
}

float Employee::GetSalary()
{
        float salary;
        cout << "Please enter the employee's salary: ";
        cin >> salary;
        return m_Salary;
}

int Employee::GetAge()
{
        int age;
        while (true)
        {
                cout << "Please enter the employee's age: ";
                cin >> age;
                if (age > 0)
                        break;
                else
                        cout << "Error: Please enter a positive value.";
        }
        return m_Age;
}

int Employee::GetYearHired()
{
        int yearHired;
        cout << "Please enter what year the employee was hired: ";
        cin >> yearHired;
        return m_YearHired;
}

class Staff
{
        vector<Employee*> emps;
        vector<Employee*>::const_iterator iter;
public:
        Staff();
        virtual ~Staff();
        void Add();
        void Remove();
        void Clear();
        void Display();
};

Staff::Staff()
{
        emps.reserve(20);
}

Staff::~Staff()
{
        Clear();
}

void Staff::Add()
{
        Employee* emp = new Employee;
        emp->GetName();
        emp->GetStatus();
        emp->GetSalary();
        emp->GetAge();
        emp->GetYearHired();
        emps.push_back(emp);
}

void Staff::Remove()
{
        Employee* emp;
        cout << "Which employee would you like to remove?";
        emp->GetName();

        iter = find(emps.begin(), emps.end(), emp->GetName());       // Trying to find the employee in the datbase.
        if (iter != emps.end())                                                 // If the employee is found in the vector it is removed.
        {
                cout << "\n" << *iter << " was removed\n\n";
                emps.erase(iter);                                                               // removes employee from the vector.
        }
        else            // If the employee is not found in the vector, it tells the user that the employee was not found. 
        {
                cout << "Employee not found, please choose anoter employee.\n\n";
        }
}

void Staff::Clear()
{
        cout << "\nDo you really want to clear all employees? (yes/no)\n";        // Asking the user if they want to clear the database
        string response;        // Storing the response of the user.
        cin >> response;  // Getting the users response (yes/no).
        if (response == "yes") // If response is yes.
        {
                vector<Employee*>::iterator iter = emps.begin();  // Declares an iterator for the emps vector and sets it to the beginning of the vector.
                for (iter = emps.begin(); iter != emps.end(); ++iter)   // Iterates through vector.
                {
                        delete *iter;   // Deletes the iterators in the vector, freeing all memory on the heap.
                        *iter = 0;      // Sets iterator to zero so it does not become a dangling pointer.
                }
                emps.clear();   // Clear vector of pointers.
        }
        else             // If response is no.
        {
                cout << "\nAll employee's remain in the database.\n";
        }
}

void Staff::Display()
{
        Employee* emp;
        if (emps.size() == 0)   // Checking to see if the database is empty.
                cout << "\nThere are no Employee's in the database, add Employee's to view them here.\n";
        else            // If the database contains any Employee's.
        {
                cout << "\nThe database contains: \n";
                for (iter = emps.begin(); iter != emps.end(); ++iter)   // Displaying the database.
                {
                        cout << "-------------------------------------------------";
                        cout << "Employee's Name           : " << emp->GetName() << endl;
                        cout << "Employee's Status                 : " << emp->GetStatus() << endl;
                        cout << "Employee's Salary                 : " << emp->GetSalary() << endl;
                        cout << "Employee's Age                    : " << emp->GetAge() << endl;
                        cout << "Year employee was hired : " << emp->GetYearHired() << endl;
                        cout << "-------------------------------------------------";
                }
        }
}

int main()
{
        int option = 0;
        Staff stf;
        // Welcoming the user to the Employee Management System program. 
        cout << "Welcome to our Employee Management System! To get started see the menu options below:\n";

        // Main loop
        while (option != 5)     // The loop will repeat until the user enters 5 as the option.
        {
                cout << "--------------------------------------------------------------------------------------";
                cout << "\nMenu Options: \n";
                cout << "\nTo select an option, please type in the number that corresponds to that option.\n";
                cout << "1 - Add an Employee\n2 - Remove an Employee\n3 - Clear the database\n4 - Display Employee's in Database\n5 - Quit" << endl;
                cout << "\nWhat would you like to do? ";
                cout << "--------------------------------------------------------------------------------------";

                // Start of the validity check.
                bool validInput = false;

                while (!validInput) // The loop will repeat until the users input is valid.
                {
                        cin >> option;    // User inputs first option choice.
                        validInput = true;      // Assign the input as valid.
                        if (cin.fail())         // Tests to make sure the value assigned is valid for the variable type.
                        {
                                cout << "\nPlease choose a menu option by number\n";
                                cin.clear();    // Clears stream error.
                                cin.ignore(numeric_limits<streamsize>::max(), '\n'); // Removes an invalid characters.
                                validInput = false;     // Sets the input back to false, repeats the loop.
                        }
                }

                switch (option)
                {
                case 1:
                {
                        stf.Add();
                        break;
                }
                case 2:
                {
                        stf.Remove();
                        break;
                }
                case 3:
                {
                        stf.Clear();
                        break;
                }
                case 4:
                {
                        stf.Display();
                        break;
                }
                case 5: // If option == 5.
                        cout << "\nThank you for using the Employee Management Program!\n";       // Thanks the user for using the Employee Management program.
                        break;
                default:        // If the user does not put in a valid option, it tells them to try again.
                        cout << "\nThat's not a valid option. Please try again.\n";
                        break;
                }
        }
        system("pause");
        return 0;
}
engineering   Computer-Science   
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Homework Answers

Answer #1

The problem is with find function in Remove method:

Actual: iter = find(emps.begin(), emps.end(), emp->GetName());

Updated: iter = find(emps.begin(), emps.end(), emp);

You need to pass only Employee class object but not string.

Updated Code:

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

class Employee
{
public:
        Employee();
        string GetName();
        string GetStatus();
        float GetSalary();
        int GetAge();
        int GetYearHired();

private:
        string m_Name;
        string m_Status;
        float m_Salary;
        int m_Age;
        int m_YearHired;

};

Employee::Employee()
{
        m_Salary = 0;
        m_Age = 0;
        m_YearHired = 0;
}

string Employee::GetName()
{
        string fName;
        string lName;
        cout << "Please enter the new employee's first name: ";
        cin >> fName;
        cout << "Please enter the new employee's last name: ";
        cin >> lName;
        m_Name = fName + lName;
        return m_Name;
}

string Employee::GetStatus()
{
        string status;
        cout << "Please enter the employee's status (full time, part time, or manager): ";
        cin >> status;
        return m_Status;
}

float Employee::GetSalary()
{
        float salary;
        cout << "Please enter the employee's salary: ";
        cin >> salary;
        return m_Salary;
}

int Employee::GetAge()
{
        int age;
        while (true)
        {
                cout << "Please enter the employee's age: ";
                cin >> age;
                if (age > 0)
                        break;
                else
                        cout << "Error: Please enter a positive value.";
        }
        return m_Age;
}

int Employee::GetYearHired()
{
        int yearHired;
        cout << "Please enter what year the employee was hired: ";
        cin >> yearHired;
        return m_YearHired;
}

class Staff
{
        vector<Employee*> emps;
        vector<Employee*>::const_iterator iter;
public:
        Staff();
        virtual ~Staff();
        void Add();
        void Remove();
        void Clear();
        void Display();
};

Staff::Staff()
{
        emps.reserve(20);
}

Staff::~Staff()
{
        Clear();
}

void Staff::Add()
{
        Employee* emp = new Employee;
        emp->GetName();
        emp->GetStatus();
        emp->GetSalary();
        emp->GetAge();
        emp->GetYearHired();
        emps.push_back(emp);
}

void Staff::Remove()
{
        Employee* emp;

        cout << "Which employee would you like to remove?";
        emp->GetName();

        /* Pass only Employee class object */
        iter = find(emps.begin(), emps.end(), emp);       // Trying to find the employee in the datbase.
        if (iter != emps.end())                                                 // If the employee is found in the vector it is removed.
        {
                cout << "\n" << *iter << " was removed\n\n";
                emps.erase(iter);                                                               // removes employee from the vector.
        }
        else            // If the employee is not found in the vector, it tells the user that the employee was not found.
        {
                cout << "Employee not found, please choose anoter employee.\n\n";
        }
}

void Staff::Clear()
{
        cout << "\nDo you really want to clear all employees? (yes/no)\n";        // Asking the user if they want to clear the database
        string response;        // Storing the response of the user.
        cin >> response; // Getting the users response (yes/no).
        if (response == "yes") // If response is yes.
        {
                vector<Employee*>::iterator iter = emps.begin(); // Declares an iterator for the emps vector and sets it to the beginning of the vector.
                for (iter = emps.begin(); iter != emps.end(); ++iter)   // Iterates through vector.
                {
                        delete *iter;   // Deletes the iterators in the vector, freeing all memory on the heap.
                        *iter = 0;      // Sets iterator to zero so it does not become a dangling pointer.
                }
                emps.clear();   // Clear vector of pointers.
        }
        else             // If response is no.
        {
                cout << "\nAll employee's remain in the database.\n";
        }
}

void Staff::Display()
{
        Employee* emp;
        if (emps.size() == 0)   // Checking to see if the database is empty.
                cout << "\nThere are no Employee's in the database, add Employee's to view them here.\n";
        else            // If the database contains any Employee's.
        {
                cout << "\nThe database contains: \n";
                for (iter = emps.begin(); iter != emps.end(); ++iter)   // Displaying the database.
                {
                        cout << "-------------------------------------------------";
                        cout << "Employee's Name           : " << emp->GetName() << endl;
                        cout << "Employee's Status                 : " << emp->GetStatus() << endl;
                        cout << "Employee's Salary                 : " << emp->GetSalary() << endl;
                        cout << "Employee's Age                    : " << emp->GetAge() << endl;
                        cout << "Year employee was hired : " << emp->GetYearHired() << endl;
                        cout << "-------------------------------------------------";
                }
        }
}

int main()
{
        int option = 0;
        Staff stf;
        // Welcoming the user to the Employee Management System program.
        cout << "Welcome to our Employee Management System! To get started see the menu options below:\n";

        // Main loop
        while (option != 5)     // The loop will repeat until the user enters 5 as the option.
        {
                cout << "--------------------------------------------------------------------------------------";
                cout << "\nMenu Options: \n";
                cout << "\nTo select an option, please type in the number that corresponds to that option.\n";
                cout << "1 - Add an Employee\n2 - Remove an Employee\n3 - Clear the database\n4 - Display Employee's in Database\n5 - Quit" << endl;
                cout << "\nWhat would you like to do? ";
                cout << "--------------------------------------------------------------------------------------";

                // Start of the validity check.
                bool validInput = false;

                while (!validInput) // The loop will repeat until the users input is valid.
                {
                        cin >> option;    // User inputs first option choice.
                        validInput = true;      // Assign the input as valid.
                        if (cin.fail())         // Tests to make sure the value assigned is valid for the variable type.
                        {
                                cout << "\nPlease choose a menu option by number\n";
                                cin.clear();    // Clears stream error.
                                cin.ignore(numeric_limits<streamsize>::max(), '\n'); // Removes an invalid characters.
                                validInput = false;     // Sets the input back to false, repeats the loop.
                        }
                }

                switch (option)
                {
                case 1:
                {
                        stf.Add();
                        break;
                }
                case 2:
                {
                        stf.Remove();
                        break;
                }
                case 3:
                {
                        stf.Clear();
                        break;
                }
                case 4:
                {
                        stf.Display();
                        break;
                }
                case 5: // If option == 5.
                        cout << "\nThank you for using the Employee Management Program!\n";       // Thanks the user for using the Employee Management program.
                        break;
                default:        // If the user does not put in a valid option, it tells them to try again.
                        cout << "\nThat's not a valid option. Please try again.\n";
                        break;
                }
        }
        system("pause");
        return 0;
}

_____________________________________________________________________________________________

Sample Run:

CTClempErrorlbin DebuglempError.exe ฟelcome to our Employee Management System! To get started see the menu options below : Me

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