ell1d.hpp

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// -*- coding: utf-8 -*-
#pragma once
 
#include <utility>  // for std::pair
 
// forward declaration
enum class CutStatus;
 
class ell1d {
  public:
    using ArrayType = double;
 
    // Rule of Five: explicitly default special member functions
    ~ell1d() = default;
    ell1d& operator=(const ell1d&) = default;
    ell1d(ell1d&&) noexcept = default;
    ell1d& operator=(ell1d&&) noexcept = default;
 
  private:
    double _r;
    double _xc;
    double _tsq = 0.0;
 
  public:
    ell1d(const double l, const double u) noexcept : _r{(u - l) / 2}, _xc{l + _r} {}
 
    explicit ell1d(const ell1d& E) = default;
 
    auto xc() const noexcept -> double { return _xc; }
 
    auto set_xc(const double xc) noexcept -> void { _xc = xc; }
 
    constexpr auto tsq() const -> double { return this->_tsq; }
 
    auto update(const std::pair<double, double>& cut) noexcept -> CutStatus;
 
    auto update_central_cut(const std::pair<double, double>& cut) noexcept -> CutStatus;
};  // } ell1d