private:

int *a;

int *b;

string name;

public:

// Constructor

MyMemoryClass(int size=5, const string & s="") : name(s){

cout << "CONSTRUCTOR " << name << endl;

a = new int;

*a = size;

b = new int[size];

for (int ii=0;ii<*a;ii++) {

b[ii] = ii+1;

}

}

// Copy Constructor

MyMemoryClass(const MyMemoryClass & original) {

name = original.name + "_copy";

cout << "COPY CONSTRUCTOR " << name << endl;

a = new int;

*a = *original.a;

b = new int[*a];

for (int ii=0;ii<*a;ii++) {

b[ii] = original.b[ii];

}

}

// Destructor

~MyMemoryClass() {

cout << "DESTRUCTOR " << name << endl;

delete a;

a = nullptr;

delete[] b; // Use delete[] when you use new with []

b = nullptr;

}

// Overloaded assignment operator

MyMemoryClass& operator=(const MyMemoryClass& otherObject) {

cout << "ASSIGNMENT OPERATOR " << name << endl;

if (this != &otherObject) {

// Allocate new memory for a & b

int * newA = nullptr;

int * newB = nullptr;

try {

newA = new int;

}

catch (...) {

if (newA != nullptr) {

delete newA;

}

}

try {

newB = new int[*(otherObject.a)];

}

catch (...) {

if (newA != nullptr) {

delete newA;

}

if (newB != nullptr) {

delete newB;

}

throw;

}

// Have new memory for a & b, now do the assignments

name = otherObject.name + "_assigned";

*newA = *(otherObject.a);

for (int ii=0;ii<*newA;ii++) {

newB[ii] = otherObject.b[ii];

}

delete a;

a = newA;

delete[]b;

b = newB;

}

return *this;

}

void print() {

cout << " MyMemoryClass " << name << " {" << a << "} {" << b << "} "

<< *a << ": " ;

for(int ii=0;ii<*a;ii++) {

cout << b[ii] << " ";

}

cout << endl;

}

MyMemoryClass c1(10, "c1"); // value semantics

MyMemoryClass * c2;

c2 = new MyMemoryClass(5, "c2"); // reference semantics

MyMemoryClass c3(14, "c3");

//MyMemoryClass c3 = c1;

cout << "C1: " << endl;

c1.print();

cout << "C2: " << endl;

c2->print();

cout << "C3: " << endl;

c3.print();

cout << endl;

cout << "C3 = C1: " << endl;

c3 = c1;

c1.print();

c3.print();

cout << endl << "Calling functions: " << endl;

func(c1);

func(c3);

cout << endl;

delete(c2);

cout << endl << "End of program" << endl;

return 0;