Class IstreamWrapper

libs/coding/csv_reader.hpp:50–60

  };

  class IstreamWrapper : public ReaderInterface
  {
  public:
    explicit IstreamWrapper(std::istream & stream);

    // ReaderInterface overrides:
    std::optional<std::string> ReadLine() override;

  private:
    std::istream & m_stream;
  };

  class ReaderWrapper : public ReaderInterface
  {