Table.h

// Copyright (C) 2008-2011 Anders Logg
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#include <cstdint>
#include <map>
#include <mpi.h>
#include <string>
#include <string_view>
#include <variant>
#include <vector>
 
namespace dolfinx
{
class Table
{
public:
  enum class Reduction : std::uint8_t
  {
    average,
    max,
    min
  };

  Table(std::string title = "", bool right_justify = true);

  Table(const Table& table) = default;

#ifdef _MSC_VER
  Table(Table&& table) noexcept = default;
#else
  Table(Table&& table) = default;
#endif

  ~Table() = default;

  Table& operator=(const Table& table) = default;

  Table& operator=(Table&& table) = default;

  void set(std::string_view row, std::string_view col,
           std::variant<std::string, int, double> value);

  std::variant<std::string, int, double> get(std::string_view row,
                                             std::string_view col) const;

  Table reduce(MPI_Comm comm, Reduction reduction) const;

  std::string name;

  std::string str() const;
 
private:
  // Row and column names
  std::vector<std::string> _rows, _cols;
 
  // Table entry values
  std::map<std::pair<std::string, std::string>,
           std::variant<std::string, int, double>>
      _values;
 
  // True if we should right-justify the table entries
  bool _right_justify;
};
 
} // namespace dolfinx