How can I use an enum class in a boolean context?

Question

I have some generic code that works with flags specified using C++11 enum class types. At one step, I\'d like to know if any of the bits in the flag are set. Cu

Answer 1

Like @RMatin says. But you could overload operator!

bool operator!(E e) {
  return e == static_cast(0);
}

So that you can use the !!e idiom

if(!!e) {
  ...
}