This document discusses various aspects of C++ memory management including pointers, references, passing arguments, constructors and destructors, the heap and stack, working with heap variables, copy constructors, and the rule of three. It covers topics such as what pointers and references are, how to pass arguments by value, pointer and reference, when constructors and destructors are called and their purpose, the difference between stack and heap variables, properly allocating and deallocating memory for heap variables, what copy constructors are and when they are called, and the need for a destructor, copy constructor, and assignment operator to follow the rule of three.

1. Memory management

2. Pointers and references
• What is pointer
• How it works
• What is reference
• Operator ->

3. Passing arguments
• Passing by value
• Passing by pointer
• Passing by reference

4. Constructors and destructors
• What is it
• Why we need it
• When it is called

5. Heap and stack
• What is stack variable
• What is heap variable
• How to work with them

6. How to work with heap variables
• Allocate memory ONLY in constructor
• Deallocate memory ONLY in destructor
• new[] and delete[]

7. Copy constructors
• What it is
• When it is called
• What code should

8. Rule of three
• Destructor
• Copy constructor
• Assignment operator