C++ decentralised enum types

EnumBase.cpp

ENUM_CLASS::ENUM_CLASS() : id(nextid++) {}

int ENUM_CLASS::nextid = 0;

bool ENUM_CLASS::operator==(const ENUM_CLASS& other) const {
  return id == other.id;
}

EnumBase.hpp

#pragma once

class ENUM_CLASS
{
public:
  ENUM_CLASS();
  bool operator==(const ENUM_CLASS& other) const;

protected:
  const int id;
  static int nextid;
};

Usage.cpp

#include "Usage.h"

int main() {
  ENUM_CLASS a = MyObject::ENUM_VALUE_A;
  
  if (a == MyObject::ENUM_VALUE_A) {
    std::cout << "success" << std::emdl;
  }
}

Usage.hpp

#include "EnumBase.hpp"

struct MyObject {
  static ENUM_CLASS ENUM_VALUE_A;
  static ENUM_CLASS ENUM_VALUE_B;
};