protected BaseFlagEnum(TVal val2, IEnumStepGenerator generator = null) : this(StartValue++, val2, generator)
{
if (val2 == null)
{
throw new ArgumentNullException("Flag enum can not has null value");
}
}
protected BaseFlagEnum(int id, TVal val2, IEnumStepGenerator generator = null) : base(generator?.NextStep(id) ?? id, val2)
{
}