#include <iostream>
 
using namespace std;
 
class MojaKlasa
{
public:
    int test;
    MojaKlasa() : test(7) { cout << "MojaKlasa()" << endl; }
    MojaKlasa(int test) : test(test) { cout << "MojaKlasa(" << test << ")" << endl;  }
    ~MojaKlasa() { cout << "~MojaKlasa()" << endl; }
};
 
int main()
{
	// alokujesz pamiec na 20 elementow
	char* mem = new char[sizeof(MojaKlasa) * 20];
	// ta sama pamiec reprezentowana jako tablica/wskaznik do elementow MojaKlasa
	MojaKlasa* tab = (MojaKlasa*)mem;
 
	cout << "tab[4].test = " << tab[4].test << endl;
 
	new (&tab[4]) MojaKlasa();
	cout << "tab[4].test = " << tab[4].test << endl;
	tab[4].~MojaKlasa();
 
	new (&tab[5]) MojaKlasa(9);
	cout << "tab[5].test = " << tab[5].test << endl;
	tab[5].~MojaKlasa();
 
	cout << "Wywolaj konstruktory na 20-tu obiektach:" << endl;
	new (tab) MojaKlasa[20]();
 
	delete [] mem;
	return 0;
}

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