Using char array inside union

Question

I\'m able to print the address and values of ints but not the chars of the union.Why is that so

#include 

using namespace std;

union Endian         


        

Answer 1

It's Undefined Behaviour to access field of the union with a type other than the last set one, at least in C++.

Whilst taking an address is legal in theory, that's not what the unions are for.