Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Aprenda Understanding Pointers | Pointer Fundamentals
Practice
Projects
Quizzes & Challenges
Quizzes
Challenges
/
C Pointers Mastery

bookUnderstanding Pointers

Prerequisites
Pré-requisitos
Note
Definition

A pointer in C is a variable that stores the memory address of another variable, allowing indirect access and modification of its value.

Pointers are a fundamental feature of C that allow you to work directly with memory addresses. Each variable in C is stored in memory, and its address represents the location where its value is kept.

Variables created inside functions are stored on the stack, which is automatically managed and cleared when the function ends. Memory allocated dynamically with functions like malloc() or calloc() comes from the heap, which you must manage manually using free().

Pointers let you access and manipulate both stack and heap memory, making them essential for dynamic data structures, efficient memory use, and low-level programming.

question mark

What does a pointer store?

Select the correct answer

Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 1. Capítulo 1

Pergunte à IA

expand

Pergunte à IA

ChatGPT

Pergunte o que quiser ou experimente uma das perguntas sugeridas para iniciar nosso bate-papo

bookUnderstanding Pointers

Deslize para mostrar o menu

Prerequisites
Pré-requisitos
Note
Definition

A pointer in C is a variable that stores the memory address of another variable, allowing indirect access and modification of its value.

Pointers are a fundamental feature of C that allow you to work directly with memory addresses. Each variable in C is stored in memory, and its address represents the location where its value is kept.

Variables created inside functions are stored on the stack, which is automatically managed and cleared when the function ends. Memory allocated dynamically with functions like malloc() or calloc() comes from the heap, which you must manage manually using free().

Pointers let you access and manipulate both stack and heap memory, making them essential for dynamic data structures, efficient memory use, and low-level programming.

question mark

What does a pointer store?

Select the correct answer

Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 1. Capítulo 1
some-alt