Overview

Class

Rule of thumb when creating class

1. Rules of Big 5

   1. destructor

   2. assignment operator

   3. copy constructor

   4. move constructor

   5. move assignment operator

class Complex
{

    public:
    Complex(int r, int i):
    real(r), 
    imagine(i)
    {}

    Complex() :
    real (0), 
    imagine (0)
    {}
    
    void Print()
    {
        std::cout << "real: " << real << " imagine: " << imagine << "\n";
    }

    private:
    int real, imagine;
};

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Operator overload

#include <iostream>

class Complex
{

    public:
    Complex(int r, int i):
    real(r), 
    imagine(i)
    {}

    Complex() :
    real (0), 
    imagine (0)
    {}
    
    void Print()
    {
        std::cout << "real: " << real << " imagine: " << imagine << "\n";
    }
    
    //copy constructor
    Complex(const Complex& rhs)
    {
        real = rhs.real;
        imagine = rhs.imagine;
    }

    //overload operator +
    Complex operator + (const Complex& rhs)
    {
        Complex res;
        res.real = real + rhs.real;
        res.imagine = imagine + rhs.imagine;
        return res;
    }
    
    //overload operator -
    Complex operator - (const Complex& rhs)
    {
        Complex res;
        res.real = real - rhs.real;
        res.imagine = imagine - rhs.imagine;
        return res;
    }
    
    //overload operator =
    void operator = (const Complex& rhs)
    {
        real = rhs.real;
        imagine = rhs.imagine;
    }
    
    //overload operator <<
    
    //destructor
    ~Complex()
    {
    }
    private:
    int real, imagine;
};

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