Function is_cell_inst

src/laybasic/laybasic/layObjectInstPath.h:200–203

* @brief Return true, if this selection represents a cell instance, not a shape */

   *  @brief Return true, if this selection represents a cell instance, not a shape
   */
  bool is_cell_inst () const
  {
    return m_layer < 0;
  }

  /**
   *  @brief Remove the given number of elements from the front of the path