#include <iostream>
#include <cstring>
#include <utility>   // for move
using namespace std;

class Student
{
    char* name;
public:
    Student();                              // default constructor
    Student(const char* n);
    Student(const Student& obj);            // copy constructor
    Student(Student&& obj);                 // move constructor
    ~Student();                             // destructor
    Student& operator=(const Student& obj); // assignment operator
    Student& operator=(Student&& obj);      // move assignment operator
    const char* getName() const
    {
        return name ? name : "";
    }
};

ostream& operator<<(ostream& out, const Student& obj)
{
    return out << "object=" << &obj << " name=" << obj.getName();
}

Student::Student() : name(nullptr)
{
    cout << "> In default constructor: " << *this << endl;
}

Student::Student(const char* n) 
: name(new char[strlen(n)+1])
{
    strcpy(name,n);
    cout << "> In Student(const char* n) ctor: " << *this << endl;
}

Student::Student(const Student& obj) 
: name(new char[strlen(obj.name+1)])
{
    strcpy(name,obj.name);
    cout << "> In copy constructor: " << *this << endl;
}

Student::Student(Student&& obj) 
: name(new char[strlen(obj.name+1)])
{
    strcpy(name,obj.name);
    cout << "> In move constructor: " << *this << endl;
    delete [] obj.name;
    obj.name = nullptr;
}

Student::~Student()
{
    cout << "~ Student destructor " << *this << endl;
    if (name) delete [] name;
    name = nullptr;
}

Student& Student::operator=(const Student& obj)
{
    delete [] name;
    name = new char[strlen(obj.name+1)];
    strcpy(name,obj.name);
    cout << "= In assignment operator: " << *this << endl;
    return *this;
}

Student& Student::operator=(Student&& obj)
{
    delete [] name;
    name = obj.name;
    cout << "= In move assignment operator: " << *this << endl;
    obj.name = nullptr;
    return *this;
}

Student create()
{
    cout << "In create()\n";
    return Student("Temporary");;
}

int main()
{
    cout << "Executing line => Student j(\"Joe\");" << endl;
    Student j("Joe");
    cout << "j = " << j << endl;

    cout << "\nExecuting line => Student h(j);" << endl;
    Student h(j);

    cout << "\nExecuting line => h = j;" << endl;
    h = j;

    cout << "\nExecuting line => j = create();" << endl;
    j = create();
    cout << "j = " << j << endl;

    cout << "\nExecuting line => Student k(move(j));" << endl;
    Student k(move(j));
    cout << "k = " << k << endl;
    cout << "j = " << j << endl;


    cout << "\nThat's all folks!!!" << endl;
}