Method rows

unsupported/Eigen/src/SparseExtra/BlockSparseMatrix.h:738–742

* \returns the number of rows */

      * \returns the number of rows
      */
    inline Index rows() const
    {
//      return blockRows();
      return (IsColMajor ? innerSize() : outerSize());
    }

    /**
      * \returns the number of cols