Method operator ==

unittests/catch.hpp:5393–5398

            }

            auto operator ==( iterator const& other ) const -> bool {
                return
                    m_pos == other.m_pos &&
                    m_stringIndex == other.m_stringIndex &&
                    &m_column == &other.m_column;
            }
            auto operator !=( iterator const& other ) const -> bool {
                return !operator==( other );
            }