How to use a class array as a pointer?

Question

How do I use a class array as a pointer? I tried several ways, but C++ didn’t let you compile by generating errors.

An example of class(It’s just one example, the class I need to use is thousands of times larger than this)

class Pessoas
{
private:
    std::string Nome;
public:
    std::string getNome() const { return this->Nome; }

    void setNome(std::string Nome) { this->Nome = Nome; }
};

Pessoas pessoas[1000]; // Forma atual que estou utilizando, compila corretamente, porém eu preciso que ela fique allocada no heap
Pessoas* pessoas = new Pessoas[1000]; // Compila corretamente, porém, eu tenho que utilizar o operador . para acessar os membros, o que me parece estranho pois geralmente eu utilizo o operador ->, dessa forma ela está sendo allocada no heap?

The second way she’s being allocada in the heap? If it’s not as I do to allocar in the heap?

An example of how I wanted to leave(Without overloading operators, as if it were a pointer):

pessoas[1]->setNome("Fulano");
pessoas[2]->setNome("Sicrano");

I’m trying to store the class in the heap because as the class is great I believe it will not fit in the stack, another reason is that I need the class data to stay until the end of extremely large functions which I believe does not happen in the stack.

Answer 1

In the first case it is in the stack and in the second in the heap. But in both cases the members should be accessed with the . and not with ->.

Only use -> to override a pointer. But you’ve done this by calling the index with the operator []. So what was left was an instance of Pessoas whose members you access with .

Ex:

#include <iostream>
#include <string>

using namespace std;

class Pessoas
{
    private:
        std::string Nome;

    public:
        std::string getNome() const { return this->Nome; }
        void setNome(std::string Nome) { this->Nome = Nome; }
};


int main()
{
    Pessoas pArray[1000];
    Pessoas* pessoas = new Pessoas[1000];

    pArray[0].setNome("Pessoa Array");
    pessoas[0].setNome("Pessoa Heap");

    cout << "!" << pArray[0].getNome() << endl;
    cout << "!" << pessoas[0].getNome() << endl;
}

I compiled with visual C++ 2015

The exit was left:

!Pessoa Array
!Pessoa Heap