[C++] Deep copy ,Shallow copy, copy constructor,"="

Deep copy ,Shallow copy, copy constructor,"="

Dog.h

#pragma once

class Dog

{

public:

    char *name;

    Dog();

    Dog(const Dog &it);

    ~Dog();

    void operator =(const Dog &it);

};

Dog.cpp

#include "Dog.h"

#include<string.h>

#include<iostream>

using namespace std;

//Constructor

Dog::Dog()

{

    name = new char[];

    memset(name,,sizeof(name));

    strcpy(name,"xiaohuang");

    cout << "dog" << endl;

}

//Destructor

Dog::~Dog()

{

    delete []name;

    cout << "~dog" << endl;

}

// copy constructor

Dog::Dog(const Dog &it)

{

    name = new char[];

    memset(name, , sizeof(name));

    strcpy(name, it.name);

    cout << "copy dog" << endl;

}

// overload =

void Dog:: operator =(const Dog &it)

{

    strcpy(name, it.name);

    cout << " = " << endl;

}

main.cpp

#include"Dog.h""

using namespace std;

void test(){

    Dog d1;

    Dog d2 = d1;

    Dog d3;

    d3 = d1;

}

void main(){

    test();

    system("pause");

}