Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Вивчайте Introduction to Pointer | Pointers Fundamentals
C++ Pointers and References

bookIntroduction to Pointer

A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory. Declaration and initialization of a pointer looks like this:

pointer.h

pointer.h

copy
1
int* p_Name = nullptr;
  • 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

Swipe to start coding

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

Рішення

solution.cpp

solution.cpp

Все було зрозуміло?

Як ми можемо покращити це?

Дякуємо за ваш відгук!

Секція 1. Розділ 1
single

single

Запитати АІ

expand

Запитати АІ

ChatGPT

Запитайте про що завгодно або спробуйте одне із запропонованих запитань, щоб почати наш чат

Suggested prompts:

Сумаризуйте цей розділ

Пояснити код у file

Пояснити, чому file не вирішує завдання

close

Awesome!

Completion rate improved to 5.88

bookIntroduction to Pointer

Свайпніть щоб показати меню

A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory. Declaration and initialization of a pointer looks like this:

pointer.h

pointer.h

copy
1
int* p_Name = nullptr;
  • 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

Swipe to start coding

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

Рішення

solution.cpp

solution.cpp

Switch to desktopПерейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів
Все було зрозуміло?

Як ми можемо покращити це?

Дякуємо за ваш відгук!

Секція 1. Розділ 1
single

single

some-alt