Conteúdo do Curso

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.

Tarefa

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.

Tarefa

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.

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Seção 1. Capítulo 2

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.

Tarefa

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.

Tarefa

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.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Seção 1. Capítulo 2

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.

Tarefa

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.

Tarefa

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.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

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.

Tarefa

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.

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Seção 1. Capítulo 2

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo