Example for Flag Machine

// A bitwise FlagMachine
// create a enum
enum PizzaIngredients {
  BREAD = 1 << 0,
  CHEESE = 1 << 1,
  TOMATO = 1 << 2,
  UNIONS = 1 << 3,
  GARLIC = 1 << 4,
 }

 var pizzaMozzarella = new Flag<PizzaIngredients>(PizzaIngredients.BREAD | PizzaIngredients.TOMATO | PizzaIngredients.CHEESE);

var garlicBread = new Flag<PizzaIngredients>(PizzaIngredients.BREAD | PizzaIngredients.GARLIC);

var pizza = new Flag<PizzaIngredients>();
pizza.add( PizzaIngredients.BREAD | PizzaIngredients.TOMATO | PizzaIngredients.CHEESE );

pizza.equals(pizzaMozzarella); // true
pizza.add(garlicBread); // true
pizza.contains(garlicBread); // true
pizza.equals(pizzaMozzarella); // false because PizzaMozzarella contains no garlic
pizza.equals(pizzaMozzarella | PizzaIngredients.GARLIC); // true now it does