Class labeled_base

include/boost/histogram/axis/base.hpp:76–108

/// Base class with a label
template <typename Allocator>
class labeled_base : public base {
public:
  using allocator_type = Allocator;

  allocator_type get_allocator() const { return label_.get_allocator(); }

  /// Returns the axis label, which is a name or description.
  boost::string_view label() const noexcept { return label_; }
  /// Change the label of an axis.
  void label(boost::string_view label) { label_.assign(label.begin(), label.end()); }

  bool operator==(const labeled_base& rhs) const noexcept {
    return base::operator==(rhs) && label_ == rhs.label_;
  }

protected:
  labeled_base() = default;
  labeled_base(const labeled_base&) = default;
  labeled_base& operator=(const labeled_base&) = default;
  labeled_base(labeled_base&& rhs) = default;
  labeled_base& operator=(labeled_base&& rhs) = default;

  labeled_base(unsigned size, axis::uoflow_type uo, string_view label,
               const allocator_type& a)
      : base(size, uo), label_(label.begin(), label.end(), a) {}

private:
  boost::container::basic_string<char, std::char_traits<char>, allocator_type> label_;

  friend class ::boost::serialization::access;
  template <class Archive>
  void serialize(Archive&, unsigned);
};

/// Iterator mixin, uses CRTP to inject iterator logic into Derived.
template <typename Derived>