binary field and union

#include <iostream>
#include <conio.h>

using namespace std;

struct pola_bitowe
{
    bool b1 :1;
    bool b2 :1;
    bool b3 :1;
    bool b4 :1;
    bool b5 :1;
    bool b6 :1;
    bool b7 :1;
    bool b8 :1;
};

union
{
    unsigned char znak;
    pola_bitowe pb;
} ddd;

int main()
{
    string imie;
    cout<<"Podaj swoje imie: ";
    cin>>imie;
    for(unsigned int i =0; i<imie.length(); i++)
    {
        cout<<endl<<imie[i]<<" = ";
        ddd.znak = imie[i];
        cout<<ddd.pb.b8<<ddd.pb.b7<<ddd.pb.b6<<ddd.pb.b5<<ddd.pb.b4<<ddd.pb.b3<<ddd.pb.b2<<ddd.pb.b1;
        cout<<endl;
    }

    getch();
    return 0;
}