Constructor wrong

[zio_mangrovia]

I'd. like to make introductory comment saying the following code is a solution of old academic exercise so It's old code:

#include <iostream>
#include "widget.h" 

using namespace std;

class MyButton :  public Button {
   TextField* tf;
public:
   MyButton(TextField* t) : tf(t) {}; // costruttore
   void action(void *data);
};

void MyButton::action(void *data) {
   cout << tf->getTex() << endl;
}

int main() {
   Window* w = new Window;
   TextField* t = new TextField;
   Mybutton* b = new Mybutton;
   
   w->setTitle("Window");
   w->add(t);
   w->add(b);
};

I think that

Mybutton* b = new Mybutton

is wrong
because when It is instantiated MyButton class, It's called Constructor of MyButton which needs TextField pointer as parameter.

I should write this code:

Mybutton* b = new Mybutton(t);

What do you think ?

[salem_c]

You're right.