#include
#include
using namespace std;
float x = 10.7F;
int main()
{
float &rx = x;
rx *= 2;
cout << " x = " << x << endl
<< " rx = " << rx << endl;
const float& cref = x;
cout << "cref = " << cref << endl;
const string str = "I am a constant string!";
const string& text = str;
cout << text << endl;
return 0;
}