Создать класс Airplane (самолет)

#include <iostream>
#include "Airplane.h"
 
int main()
{
    Airplane bigAirplane{ 250u };
    Airplane smallAirplane{ 50u };
 
    bool equalsResult = bigAirplane == smallAirplane;
    bigAirplane++;
    smallAirplane--;
    bool isBigger = bigAirplane > smallAirplane;
    bool isSmaller = smallAirplane < bigAirplane;
 
    bigAirplane.setPassengerCount(500u);
    unsigned short bigAirplanePassengerCount = bigAirplane.getPassengerCount();
        
    return 0;
}

#pragma once
 
class Airplane
{
public:
    Airplane() : passengerCount(0) {}
    Airplane(unsigned short peopleCount) : passengerCount(peopleCount) {}
    ~Airplane() { this->passengerCount = 0; }
 
public:
    bool operator==(Airplane secondAirplane);
    Airplane operator++(int);
    Airplane operator--(int);
    bool operator>(Airplane secondAirplane);
    bool operator<(Airplane secondAirplane);
 
public:
    unsigned short getPassengerCount() { return this->passengerCount; }
    void setPassengerCount(unsigned short peopleCount) { this->passengerCount = peopleCount; }
 
private:
    unsigned short passengerCount;
};

#include "Airplane.h"
 
bool Airplane::operator==(Airplane secondAirplane)
{
    return this->passengerCount == secondAirplane.passengerCount;
}
 
Airplane Airplane::operator++(int)
{
    this->passengerCount++;
    return *this;
}
 
Airplane Airplane::operator--(int)
{
    this->passengerCount--;
    return *this;
}
 
bool Airplane::operator>(Airplane secondAirplane)
{
    return this->passengerCount > secondAirplane.passengerCount;
}
 
bool Airplane::operator<(Airplane secondAirplane)
{
    return this->passengerCount < secondAirplane.passengerCount;
}

Airplane operator++(int); // Postfix
Airplane& operator++(); // Prefix
Airplane operator--(int); // Postfix
Airplane& operator--(); // Prefix

Airplane Airplane::operator++(int)
{
    Airplane tmp = *this;
    ++tmp.passengerCount;
    return tmp;
}
 
Airplane& Airplane::operator++()
{
    this->passengerCount++;
    return *this;
}
 
Airplane Airplane::operator--(int)
{
    Airplane tmp = *this;
    --tmp.passengerCount;
    return tmp;
}
 
Airplane& Airplane::operator--()
{
    this->passengerCount++;
    return *this;
}