C++ Pointers and References

C++ Pointers and References

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1. Pointers Fundamentals

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

Introduction to Pointer

Assigning Addresses to Pointers

Link Between Pointer and Variable

Pointers Use Cases

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

Зміст курсу

C++ Pointers and References

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

Assigning Addresses to Pointers

When working with pointers, proper initialization is essential to ensure they point to valid memory locations and prevent unexpected behavior.

Address-of and Dereference operators

To assign a value to the pointer we have to use address-of operator and to access the value of the memory address we have to use dereference operator.

&: the address-of operator, returns the memory address of its operand;
*: the derefence operator, returns the value that stored in the memory address.

main


              12345678
            
#include <iostream>

int main()
{
	int variable = 10;
	std::cout << &variable << std::endl;
	std::cout << *(&variable) << std::endl;
}

Using the address-of operator, we can assign these addresses to pointers, creating a direct link between the pointer and the memory location it points to.

Завдання

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Declare a pointer with an appropriate data type.
Initialize it with a variable memory address.
Output both the memory address the pointer points to and the value it holds.

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

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Assigning Addresses to Pointers

When working with pointers, proper initialization is essential to ensure they point to valid memory locations and prevent unexpected behavior.

Address-of and Dereference operators

To assign a value to the pointer we have to use address-of operator and to access the value of the memory address we have to use dereference operator.

&: the address-of operator, returns the memory address of its operand;
*: the derefence operator, returns the value that stored in the memory address.

main


              12345678
            
#include <iostream>

int main()
{
	int variable = 10;
	std::cout << &variable << std::endl;
	std::cout << *(&variable) << std::endl;
}

Using the address-of operator, we can assign these addresses to pointers, creating a direct link between the pointer and the memory location it points to.

Завдання

Swipe to show code editor

Declare a pointer with an appropriate data type.
Initialize it with a variable memory address.
Output both the memory address the pointer points to and the value it holds.

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 1. Розділ 2

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

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