C++ Pointers and References

1. Pointers Fundamentals

Learn the basics of pointers in a simple, not overwhelming manner!

2. Pointer Arithmetic

Explore how pointers, which store memory addresses, can be manipulated using arithmetic operations. Learn to navigate through memory locations, access data structures efficiently, and optimize code for performance.

Introduction to Pointer Arithmetic

Pointer Arithmetic Practice

Arrays and Pointers Connection

Array Pointer Arithmetic Practice

3. References Fundamentals

Explore the concept of references as aliases for variables and memory-efficient access to data. Learn how references contribute to cleaner code, improved readability, and enhanced performance by avoiding unnecessary data duplication.

Introduction to References

Reference Use Cases

Rvalue and Lvalue References

Reference vs Pointers

4. Dynamic Memory Allocation

Uncover the principles and techniques behind allocating and deallocating memory dynamically during program execution. Understand the advantages and challenges of dynamic memory allocation.

Introduction to Memory

Dynamic Allocation

Dynamic Allocation of the Array

Pointer to Pointer Dynamic Allocation

Summary and Overview

Introduction to Pointer

A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory, a powerful tool for dynamic memory allocation and efficient data manipulation.

Declaration and initialization of a pointer looks like this:

int: specifies the base type of the variable that the pointer will point to. In this case, it's an integer;
*: called dereference operator, returns the value stored at the address held by a pointer;
p_Name: the name of the pointer variable. You can choose any valid variable name;
nullptr: is a keyword that represents a null pointer, indicating that it is empty and doesn't point to anything.

Note
Commonly, pointers are named with a prefix p_ as a naming convention signifying that the variable is a pointer.

Завдання

Declare and initialize pointer with a nullptr.
Display a pointer for a chosen primitive data type.
Make sure its name has p_ prefix.

_{Once you've completed this task, click the button below the code to check your solution.}

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Зміст курсу

C++ Pointers and References

1. Pointers Fundamentals

Introduction to Pointer Assigning Addresses to Pointers Link Between Pointer and Variable Pointers Use Cases

2. Pointer Arithmetic

Introduction to Pointer Arithmetic Pointer Arithmetic Practice Arrays and Pointers Connection Array Pointer Arithmetic Practice

3. References Fundamentals

Introduction to References Reference Use Cases Rvalue and Lvalue References Reference vs Pointers

4. Dynamic Memory Allocation

Introduction to Memory Dynamic Allocation Dynamic Allocation of the Array Pointer to Pointer Dynamic Allocation Summary and Overview

C++ Pointers and References

Introduction to Pointer

A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory, a powerful tool for dynamic memory allocation and efficient data manipulation.

Declaration and initialization of a pointer looks like this:

int: specifies the base type of the variable that the pointer will point to. In this case, it's an integer;
*: called dereference operator, returns the value stored at the address held by a pointer;
p_Name: the name of the pointer variable. You can choose any valid variable name;
nullptr: is a keyword that represents a null pointer, indicating that it is empty and doesn't point to anything.

Note
Commonly, pointers are named with a prefix p_ as a naming convention signifying that the variable is a pointer.

Завдання

Declare and initialize pointer with a nullptr.
Display a pointer for a chosen primitive data type.
Make sure its name has p_ prefix.

_{Once you've completed this task, click the button below the code to check your solution.}

Все було зрозуміло?

Секція 1. Розділ 1