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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

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.}

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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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.}

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

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.}

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?

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.}

Секція 1. Розділ 1