How do I organize headers and modules?

C++ provides a structured way to organize code into headers and modules, which helps in better manageability and encapsulation. Proper organization can lead to cleaner code and easier maintenance.

// Example of organizing headers
#ifndef MY_HEADER_H
#define MY_HEADER_H

void myFunction();

#endif // MY_HEADER_H

// In a separate implementation file
#include "my_header.h"
#include 

void myFunction() {
    std::cout << "Hello, World!" << std::endl;
}

// Main file
#include "my_header.h"

int main() {
    myFunction();
    return 0;
}