Class base

include/boost/histogram/axis/base.hpp:30–72

Base class for all axes

/// Base class for all axes
class base {
public:
  /// Returns the number of bins without overflow/underflow.
  int size() const noexcept { return size_; }
  /// Returns the number of bins, including overflow/underflow if enabled.
  int shape() const noexcept { return shape_; }
  /// Returns number of extra bins to count under- or overflow.
  int uoflow() const noexcept { return shape_ - size_; }

protected:
  base(unsigned size, axis::uoflow_type uo)
      : size_(size), shape_(size + static_cast<int>(uo)) {
    if (size_ == 0) { throw std::invalid_argument("bins > 0 required"); }
  }

  base() = default;
  base(const base&) = default;
  base& operator=(const base&) = default;
  base(base&& rhs) : size_(rhs.size_), shape_(rhs.shape_) {
    rhs.size_ = 0;
    rhs.shape_ = 0;
  }
  base& operator=(base&& rhs) {
    if (this != &rhs) {
      size_ = rhs.size_;
      shape_ = rhs.shape_;
      rhs.size_ = 0;
      rhs.shape_ = 0;
    }
    return *this;
  }

  bool operator==(const base& rhs) const noexcept {
    return size_ == rhs.size_ && shape_ == rhs.shape_;
  }

private:
  int size_ = 0, shape_ = 0;

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

/// Base class with a label
template <typename Allocator>