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Simplify API by removing allCols/allRows and reusing rowwise/colwise to define iterators over rows/columns

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Gael Guennebaud
2018-10-05 23:11:21 +02:00
parent 91613bf2c2
commit d92f004ab7
6 changed files with 50 additions and 51 deletions
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26
Eigen/src/Core/VectorwiseOp.h
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@@ -241,6 +241,32 @@ template<typename ExpressionType, int Direction> class VectorwiseOp
EIGEN_DEVICE_FUNC
inline const ExpressionType& _expression() const { return m_matrix; }
#ifdef EIGEN_PARSED_BY_DOXYGEN
/** STL-like \link https://en.cppreference.com/w/cpp/named_req/RandomAccessIterator RandomAccessIterator \endlink
* iterator type over the columns of rows as returned by the begin() and end() methods.
*/
random_access_iterator_type iterator;
/** This is the const version of iterator (aka read-only) */
random_access_iterator_type const_iterator;
#else
typedef internal::subvector_stl_iterator<ExpressionType, DirectionType(Direction)> iterator;
typedef internal::subvector_stl_iterator<const ExpressionType, DirectionType(Direction)> const_iterator;
#endif
/** returns an iterator to the first row (rowwise) or column (colwise) of the nested expression.
* \sa end(), cbegin()
*/
iterator begin() const { return iterator (m_matrix, 0); }
/** const version of begin() */
const_iterator cbegin() const { return const_iterator(m_matrix, 0); }
/** returns an iterator to the row (resp. column) following the last row (resp. column) of the nested expression
* \sa begin(), cend()
*/
iterator end() const { return iterator (m_matrix, m_matrix.template subVectors<DirectionType(Direction)>()); }
/** const version of end() */
const_iterator cend() const { return const_iterator(m_matrix, m_matrix.template subVectors<DirectionType(Direction)>()); }
/** \returns a row or column vector expression of \c *this reduxed by \a func
*
* The template parameter \a BinaryOp is the type of the functor