Method create

include/tabulate/table_internal.hpp:55–59

class TableInternal : public std::enable_shared_from_this<TableInternal> {
public:
  static std::shared_ptr<TableInternal> create() {
    auto result = std::shared_ptr<TableInternal>(new TableInternal());
    result->format_.set_defaults();
    return result;
  }

  void add_row(const std::vector<std::string> &cells) {
    auto row = std::make_shared<Row>(shared_from_this());