C++ calback example

cpp_callback_example.cpp

#include <iostream>
#include <string>
#include <vector>


// Dll
typedef bool (*PointerToF)(int number);

struct A {
    PointerToF m_f;
    void setF(PointerToF f) {
        m_f = f;
    }
    bool call() {
        return m_f(4);
    }
};

// Ejecutable
bool myf(int number) {
    std::cout << number << std::endl;
    return number != 0;
}

int main()
{
    /* Option A */
    A a;
    a.setF(&myf);
    a.call();
    
    /* Option B */
    // PointerToF una_f = nullptr;
    // una_f = &myf;
    // una_f(4);   
}