Method FormatDays

cpp/src/arrow/util/formatting.h:440–451

 protected:
  template <typename Appender>
  Return<Appender> FormatDays(arrow_vendored::date::days since_epoch, Appender&& append) {
    arrow_vendored::date::sys_days timepoint_days{since_epoch};

    constexpr size_t buffer_size = detail::BufferSizeYYYY_MM_DD();

    std::array<char, buffer_size> buffer;
    char* cursor = buffer.data() + buffer_size;

    detail::FormatYYYY_MM_DD(arrow_vendored::date::year_month_day{timepoint_days},
                             &cursor);
    return append(detail::ViewDigitBuffer(buffer, cursor));
  }
};

template <>