Construct object with itself as reference?

Question

I just realised that this program compiles and runs (gcc version 4.4.5 / Ubuntu):

#include 
using namespace std;

class Test
{
public:
  // copyc         


        

Answer 1

If you crank your warning levels up, your compiler will probably warn you about using uninitialized stuff. UB doesn't require a diagnostic, many things that are "obviously" wrong may compile.