Method InnerIterator

include/Eigen/Eigen/src/Core/CoreIterators.h:43–45

Construct an iterator over the \a outerId -th row or column of \a xpr */

public:
  /** Construct an iterator over the \a outerId -th row or column of \a xpr */
  InnerIterator(const XprType &xpr, const Index &outerId)
    : m_eval(xpr), m_iter(m_eval, outerId, xpr.innerSize())
  {}
  
  /// \returns the value of the current coefficient.
  EIGEN_STRONG_INLINE Scalar value() const          { return m_iter.value(); }