Cannot use better_enum from class

[gri6507]

I would like to declare a better_enum from inside a class. For example,

#include <enum.h>
class A
{
  public:
    BETTER_ENUM(Word, int, Hello, World)
    A(Word x){}
};

int main()
{
  A x(Word::Hello);
  return 0;
}

Unfortunately, this fails to compile. However, if I move the BETTER_ENUM declaration outside of the class, this works just fine. Is there another way to declare a better_enum inside a C++ class?

[BrainStone]

It literally says that it is a limitation in the README and even offers a workaround.