>>>
/// Reference type
enum RefType {
  /// Indicates a reference to type: *T &*
  ref,
  /// Indicates a const reference to type: *T const&*
  cref,
  /// Indicates a volatile reference to type: *T volatile&*
  vref,
  /// Indicates a const volatile reference to type: *T const volatile&*
  cvref,
  /// Indicates not a reference
  value
}
<<<
/// Reference type
enum RefType {
  /// Indicates a reference to type: *T &*
  ref,
  /// Indicates a const reference to type: *T const&*
  cref,
  /// Indicates a volatile reference to type: *T volatile&*
  vref,
  /// Indicates a const volatile reference to type: *T const volatile&*
  cvref,
  /// Indicates not a reference
  value
}