arduino c++ - Array of a type with different types inside

Question

I'm creating an Array of a Class Type (Button), and I want to have a subclass of it called ButtonMb inside the array Button Is that possible? I tried to have two different constructors and use only one Class, but since number of parameters are the same, I couln't reach anywhere.

Here is my code: for simplicity I only included header code for class declaration

typedef void (*Callback)(void);
typedef int (*CallbackInt)(void);

class Button {
  public:
    OneButton _pin;

    Button(uint8_t pin, Callback click=NULL, Callback longCl=NULL, Callback dblCl=NULL);
  
    void loop();
};

class ButtonMb : public Button {
  public:
    CallbackInt _pinState;

    ButtonMb(CallbackInt pinState, Callback click=NULL, Callback longCl=NULL, Callback dblCl=NULL);
    
    void loop();
};

Button buttons[2] = {
  Button(14),
  ButtonMb([](){return slaves[0].getState("A15");)
};

Any help?

NOTE: I'm using Arduino, so code can be limited.

question from:https://stackoverflow.com/questions/65928646/array-of-a-type-with-different-types-inside

Answer 1

Instead of using array of objects, you can create array of pointers. Pointers of base class can point to derived classes, so you can have pointers to objects of different types in one array.