#include <iostream>
#include <string>
using namespace std;

class Element { public:
   virtual ~Element() { }
};

class This : public Element { public:
   string thiss() { return "This"; }
};

class That : public Element { public:
   string that() { return "That"; }
};

class TheOther : public Element { public:
   string theOther() { return "TheOther"; }
};

void main( void ) {
   Element* list[] = { new That(), new This(), new TheOther() };
   for (int i=0; i < 3; i++) {
      // 1. print out the name of the type of each element
      // 2. use typeid() to try to find the This* element
      // 3. use static_cast() to try to find the This* element
      // 4. use dynamic_cast() to try to find the This* element
      // 5. use dynamic_cast() to call each class' peculiar method
}  }



#if 0

void main( void ) {
   Element* list[] = { new That(), new This(), new TheOther() };
   for (int i=0; i < 3; i++)
      cout << typeid(list[i]).name() << '\n';
}

// class Element *
// class Element *
// class Element *


void main( void ) {
   Element* list[] = { new That(), new This(), new TheOther() };
   for (int i=0; i < 3; i++)
      if (typeid(list[i]) == typeid(This*))
         cout << "element is This*\n";
      else if (typeid(list[i]) == typeid(Element*))
         cout << "element is Element*\n";
}

// element is Element*
// element is Element*
// element is Element*


void main( void ) {
   Element* list[] = { new That(), new This(), new TheOther() };
   for (int i=0; i < 3; i++)
      if (static_cast<This*>(list[i]))
         cout << "element is This*\n";
      else if (static_cast<Element*>(list[i]))
         cout << "element is Element*\n";
}

// element is This*
// element is This*
// element is This*


void main( void ) {
   Element* list[] = { new That(), new This(), new TheOther() };
   for (int i=0; i < 3; i++)
      if (dynamic_cast<This*>(list[i]))
         cout << "element is This*\n";
      else if (dynamic_cast<Element*>(list[i]))
         cout << "element is Element*\n";
}

// element is Element*
// element is This*
// element is Element*


void main( void ) {
   Element* list[] = { new That(), new This(), new TheOther() };
   This* one;  That* two;  TheOther* thr;
   for (int i=0; i < 3; i++)
      if (one = dynamic_cast<This*>(list[i]))
         cout << one->thiss() << '\n';
      else if (two = dynamic_cast<That*>(list[i]))
         cout << two->that() << '\n';
      else if (thr = dynamic_cast<TheOther*>(list[i]))
         cout << thr->theOther() << '\n';
}

// That
// This
// TheOther

#endif