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Diffstat (limited to 'eigen/Eigen/src/plugins/BlockMethods.h')
| -rw-r--r-- | eigen/Eigen/src/plugins/BlockMethods.h | 1733 |
1 files changed, 1077 insertions, 656 deletions
diff --git a/eigen/Eigen/src/plugins/BlockMethods.h b/eigen/Eigen/src/plugins/BlockMethods.h index 2788251..5caf144 100644 --- a/eigen/Eigen/src/plugins/BlockMethods.h +++ b/eigen/Eigen/src/plugins/BlockMethods.h @@ -8,27 +8,32 @@ // Public License v. 2.0. If a copy of the MPL was not distributed // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. - #ifndef EIGEN_PARSED_BY_DOXYGEN -/** \internal expression type of a column */ +/// \internal expression type of a column */ typedef Block<Derived, internal::traits<Derived>::RowsAtCompileTime, 1, !IsRowMajor> ColXpr; typedef const Block<const Derived, internal::traits<Derived>::RowsAtCompileTime, 1, !IsRowMajor> ConstColXpr; -/** \internal expression type of a row */ +/// \internal expression type of a row */ typedef Block<Derived, 1, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> RowXpr; typedef const Block<const Derived, 1, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> ConstRowXpr; -/** \internal expression type of a block of whole columns */ +/// \internal expression type of a block of whole columns */ typedef Block<Derived, internal::traits<Derived>::RowsAtCompileTime, Dynamic, !IsRowMajor> ColsBlockXpr; typedef const Block<const Derived, internal::traits<Derived>::RowsAtCompileTime, Dynamic, !IsRowMajor> ConstColsBlockXpr; -/** \internal expression type of a block of whole rows */ +/// \internal expression type of a block of whole rows */ typedef Block<Derived, Dynamic, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> RowsBlockXpr; typedef const Block<const Derived, Dynamic, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> ConstRowsBlockXpr; -/** \internal expression type of a block of whole columns */ +/// \internal expression type of a block of whole columns */ template<int N> struct NColsBlockXpr { typedef Block<Derived, internal::traits<Derived>::RowsAtCompileTime, N, !IsRowMajor> Type; }; template<int N> struct ConstNColsBlockXpr { typedef const Block<const Derived, internal::traits<Derived>::RowsAtCompileTime, N, !IsRowMajor> Type; }; -/** \internal expression type of a block of whole rows */ +/// \internal expression type of a block of whole rows */ template<int N> struct NRowsBlockXpr { typedef Block<Derived, N, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> Type; }; template<int N> struct ConstNRowsBlockXpr { typedef const Block<const Derived, N, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> Type; }; +/// \internal expression of a block */ +typedef Block<Derived> BlockXpr; +typedef const Block<const Derived> ConstBlockXpr; +/// \internal expression of a block of fixed sizes */ +template<int Rows, int Cols> struct FixedBlockXpr { typedef Block<Derived,Rows,Cols> Type; }; +template<int Rows, int Cols> struct ConstFixedBlockXpr { typedef Block<const Derived,Rows,Cols> Type; }; typedef VectorBlock<Derived> SegmentReturnType; typedef const VectorBlock<const Derived> ConstSegmentReturnType; @@ -37,378 +42,560 @@ template<int Size> struct ConstFixedSegmentReturnType { typedef const VectorBloc #endif // not EIGEN_PARSED_BY_DOXYGEN -/** \returns a dynamic-size expression of a block in *this. - * - * \param startRow the first row in the block - * \param startCol the first column in the block - * \param blockRows the number of rows in the block - * \param blockCols the number of columns in the block - * - * Example: \include MatrixBase_block_int_int_int_int.cpp - * Output: \verbinclude MatrixBase_block_int_int_int_int.out - * - * \note Even though the returned expression has dynamic size, in the case - * when it is applied to a fixed-size matrix, it inherits a fixed maximal size, - * which means that evaluating it does not cause a dynamic memory allocation. - * - * \sa class Block, block(Index,Index) - */ -inline Block<Derived> block(Index startRow, Index startCol, Index blockRows, Index blockCols) -{ - return Block<Derived>(derived(), startRow, startCol, blockRows, blockCols); -} - -/** This is the const version of block(Index,Index,Index,Index). */ -inline const Block<const Derived> block(Index startRow, Index startCol, Index blockRows, Index blockCols) const -{ - return Block<const Derived>(derived(), startRow, startCol, blockRows, blockCols); -} - - - - -/** \returns a dynamic-size expression of a top-right corner of *this. - * - * \param cRows the number of rows in the corner - * \param cCols the number of columns in the corner - * - * Example: \include MatrixBase_topRightCorner_int_int.cpp - * Output: \verbinclude MatrixBase_topRightCorner_int_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline Block<Derived> topRightCorner(Index cRows, Index cCols) +/// \returns an expression of a block in \c *this with either dynamic or fixed sizes. +/// +/// \param startRow the first row in the block +/// \param startCol the first column in the block +/// \param blockRows number of rows in the block, specified at either run-time or compile-time +/// \param blockCols number of columns in the block, specified at either run-time or compile-time +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example using runtime (aka dynamic) sizes: \include MatrixBase_block_int_int_int_int.cpp +/// Output: \verbinclude MatrixBase_block_int_int_int_int.out +/// +/// \newin{3.4}: +/// +/// The number of rows \a blockRows and columns \a blockCols can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. In the later case, \c n plays the role of a runtime fallback value in case \c N equals Eigen::Dynamic. +/// Here is an example with a fixed number of rows \c NRows and dynamic number of columns \c cols: +/// \code +/// mat.block(i,j,fix<NRows>,cols) +/// \endcode +/// +/// This function thus fully covers the features offered by the following overloads block<NRows,NCols>(Index, Index), +/// and block<NRows,NCols>(Index, Index, Index, Index) that are thus obsolete. Indeed, this generic version avoids +/// redundancy, it preserves the argument order, and prevents the need to rely on the template keyword in templated code. +/// +/// but with less redundancy and more consistency as it does not modify the argument order +/// and seamlessly enable hybrid fixed/dynamic sizes. +/// +/// \note Even in the case that the returned expression has dynamic size, in the case +/// when it is applied to a fixed-size matrix, it inherits a fixed maximal size, +/// which means that evaluating it does not cause a dynamic memory allocation. +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa class Block, fix, fix<N>(int) +/// +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename FixedBlockXpr<...,...>::Type +#endif +block(Index startRow, Index startCol, NRowsType blockRows, NColsType blockCols) { - return Block<Derived>(derived(), 0, cols() - cCols, cRows, cCols); + return typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type( + derived(), startRow, startCol, internal::get_runtime_value(blockRows), internal::get_runtime_value(blockCols)); } -/** This is the const version of topRightCorner(Index, Index).*/ -inline const Block<const Derived> topRightCorner(Index cRows, Index cCols) const +/// This is the const version of block(Index,Index,NRowsType,NColsType) +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstFixedBlockXpr<...,...>::Type +#endif +block(Index startRow, Index startCol, NRowsType blockRows, NColsType blockCols) const +{ + return typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type( + derived(), startRow, startCol, internal::get_runtime_value(blockRows), internal::get_runtime_value(blockCols)); +} + + + +/// \returns a expression of a top-right corner of \c *this with either dynamic or fixed sizes. +/// +/// \param cRows the number of rows in the corner +/// \param cCols the number of columns in the corner +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example with dynamic sizes: \include MatrixBase_topRightCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_topRightCorner_int_int.out +/// +/// The number of rows \a blockRows and columns \a blockCols can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename FixedBlockXpr<...,...>::Type +#endif +topRightCorner(NRowsType cRows, NColsType cCols) { - return Block<const Derived>(derived(), 0, cols() - cCols, cRows, cCols); + return typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, cols() - internal::get_runtime_value(cCols), internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); } -/** \returns an expression of a fixed-size top-right corner of *this. - * - * \tparam CRows the number of rows in the corner - * \tparam CCols the number of columns in the corner - * - * Example: \include MatrixBase_template_int_int_topRightCorner.cpp - * Output: \verbinclude MatrixBase_template_int_int_topRightCorner.out - * - * \sa class Block, block<int,int>(Index,Index) - */ +/// This is the const version of topRightCorner(NRowsType, NColsType). +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstFixedBlockXpr<...,...>::Type +#endif +topRightCorner(NRowsType cRows, NColsType cCols) const +{ + return typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, cols() - internal::get_runtime_value(cCols), internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); +} + +/// \returns an expression of a fixed-size top-right corner of \c *this. +/// +/// \tparam CRows the number of rows in the corner +/// \tparam CCols the number of columns in the corner +/// +/// Example: \include MatrixBase_template_int_int_topRightCorner.cpp +/// Output: \verbinclude MatrixBase_template_int_int_topRightCorner.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa class Block, block<int,int>(Index,Index) +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> topRightCorner() +EIGEN_DEVICE_FUNC +inline typename FixedBlockXpr<CRows,CCols>::Type topRightCorner() { - return Block<Derived, CRows, CCols>(derived(), 0, cols() - CCols); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, cols() - CCols); } -/** This is the const version of topRightCorner<int, int>().*/ +/// This is the const version of topRightCorner<int, int>(). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> topRightCorner() const -{ - return Block<const Derived, CRows, CCols>(derived(), 0, cols() - CCols); -} - -/** \returns an expression of a top-right corner of *this. - * - * \tparam CRows number of rows in corner as specified at compile-time - * \tparam CCols number of columns in corner as specified at compile-time - * \param cRows number of rows in corner as specified at run-time - * \param cCols number of columns in corner as specified at run-time - * - * This function is mainly useful for corners where the number of rows is specified at compile-time - * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time - * information should not contradict. In other words, \a cRows should equal \a CRows unless - * \a CRows is \a Dynamic, and the same for the number of columns. - * - * Example: \include MatrixBase_template_int_int_topRightCorner_int_int.cpp - * Output: \verbinclude MatrixBase_template_int_int_topRightCorner_int_int.out - * - * \sa class Block - */ +EIGEN_DEVICE_FUNC +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topRightCorner() const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), 0, cols() - CCols); +} + +/// \returns an expression of a top-right corner of \c *this. +/// +/// \tparam CRows number of rows in corner as specified at compile-time +/// \tparam CCols number of columns in corner as specified at compile-time +/// \param cRows number of rows in corner as specified at run-time +/// \param cCols number of columns in corner as specified at run-time +/// +/// This function is mainly useful for corners where the number of rows is specified at compile-time +/// and the number of columns is specified at run-time, or vice versa. The compile-time and run-time +/// information should not contradict. In other words, \a cRows should equal \a CRows unless +/// \a CRows is \a Dynamic, and the same for the number of columns. +/// +/// Example: \include MatrixBase_template_int_int_topRightCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_template_int_int_topRightCorner_int_int.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> topRightCorner(Index cRows, Index cCols) +inline typename FixedBlockXpr<CRows,CCols>::Type topRightCorner(Index cRows, Index cCols) { - return Block<Derived, CRows, CCols>(derived(), 0, cols() - cCols, cRows, cCols); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, cols() - cCols, cRows, cCols); } -/** This is the const version of topRightCorner<int, int>(Index, Index).*/ +/// This is the const version of topRightCorner<int, int>(Index, Index). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> topRightCorner(Index cRows, Index cCols) const -{ - return Block<const Derived, CRows, CCols>(derived(), 0, cols() - cCols, cRows, cCols); -} - - - -/** \returns a dynamic-size expression of a top-left corner of *this. - * - * \param cRows the number of rows in the corner - * \param cCols the number of columns in the corner - * - * Example: \include MatrixBase_topLeftCorner_int_int.cpp - * Output: \verbinclude MatrixBase_topLeftCorner_int_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline Block<Derived> topLeftCorner(Index cRows, Index cCols) -{ - return Block<Derived>(derived(), 0, 0, cRows, cCols); -} - -/** This is the const version of topLeftCorner(Index, Index).*/ -inline const Block<const Derived> topLeftCorner(Index cRows, Index cCols) const +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topRightCorner(Index cRows, Index cCols) const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), 0, cols() - cCols, cRows, cCols); +} + + + +/// \returns an expression of a top-left corner of \c *this with either dynamic or fixed sizes. +/// +/// \param cRows the number of rows in the corner +/// \param cCols the number of columns in the corner +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example: \include MatrixBase_topLeftCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_topLeftCorner_int_int.out +/// +/// The number of rows \a blockRows and columns \a blockCols can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename FixedBlockXpr<...,...>::Type +#endif +topLeftCorner(NRowsType cRows, NColsType cCols) { - return Block<const Derived>(derived(), 0, 0, cRows, cCols); + return typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, 0, internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); } -/** \returns an expression of a fixed-size top-left corner of *this. - * - * The template parameters CRows and CCols are the number of rows and columns in the corner. - * - * Example: \include MatrixBase_template_int_int_topLeftCorner.cpp - * Output: \verbinclude MatrixBase_template_int_int_topLeftCorner.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of topLeftCorner(Index, Index). +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstFixedBlockXpr<...,...>::Type +#endif +topLeftCorner(NRowsType cRows, NColsType cCols) const +{ + return typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, 0, internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); +} + +/// \returns an expression of a fixed-size top-left corner of \c *this. +/// +/// The template parameters CRows and CCols are the number of rows and columns in the corner. +/// +/// Example: \include MatrixBase_template_int_int_topLeftCorner.cpp +/// Output: \verbinclude MatrixBase_template_int_int_topLeftCorner.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> topLeftCorner() +EIGEN_DEVICE_FUNC +inline typename FixedBlockXpr<CRows,CCols>::Type topLeftCorner() { - return Block<Derived, CRows, CCols>(derived(), 0, 0); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, 0); } -/** This is the const version of topLeftCorner<int, int>().*/ +/// This is the const version of topLeftCorner<int, int>(). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> topLeftCorner() const -{ - return Block<const Derived, CRows, CCols>(derived(), 0, 0); -} - -/** \returns an expression of a top-left corner of *this. - * - * \tparam CRows number of rows in corner as specified at compile-time - * \tparam CCols number of columns in corner as specified at compile-time - * \param cRows number of rows in corner as specified at run-time - * \param cCols number of columns in corner as specified at run-time - * - * This function is mainly useful for corners where the number of rows is specified at compile-time - * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time - * information should not contradict. In other words, \a cRows should equal \a CRows unless - * \a CRows is \a Dynamic, and the same for the number of columns. - * - * Example: \include MatrixBase_template_int_int_topLeftCorner_int_int.cpp - * Output: \verbinclude MatrixBase_template_int_int_topLeftCorner_int_int.out - * - * \sa class Block - */ +EIGEN_DEVICE_FUNC +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topLeftCorner() const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), 0, 0); +} + +/// \returns an expression of a top-left corner of \c *this. +/// +/// \tparam CRows number of rows in corner as specified at compile-time +/// \tparam CCols number of columns in corner as specified at compile-time +/// \param cRows number of rows in corner as specified at run-time +/// \param cCols number of columns in corner as specified at run-time +/// +/// This function is mainly useful for corners where the number of rows is specified at compile-time +/// and the number of columns is specified at run-time, or vice versa. The compile-time and run-time +/// information should not contradict. In other words, \a cRows should equal \a CRows unless +/// \a CRows is \a Dynamic, and the same for the number of columns. +/// +/// Example: \include MatrixBase_template_int_int_topLeftCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_template_int_int_topLeftCorner_int_int.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> topLeftCorner(Index cRows, Index cCols) +inline typename FixedBlockXpr<CRows,CCols>::Type topLeftCorner(Index cRows, Index cCols) { - return Block<Derived, CRows, CCols>(derived(), 0, 0, cRows, cCols); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, 0, cRows, cCols); } -/** This is the const version of topLeftCorner<int, int>(Index, Index).*/ +/// This is the const version of topLeftCorner<int, int>(Index, Index). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> topLeftCorner(Index cRows, Index cCols) const -{ - return Block<const Derived, CRows, CCols>(derived(), 0, 0, cRows, cCols); -} - - - -/** \returns a dynamic-size expression of a bottom-right corner of *this. - * - * \param cRows the number of rows in the corner - * \param cCols the number of columns in the corner - * - * Example: \include MatrixBase_bottomRightCorner_int_int.cpp - * Output: \verbinclude MatrixBase_bottomRightCorner_int_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline Block<Derived> bottomRightCorner(Index cRows, Index cCols) -{ - return Block<Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); -} - -/** This is the const version of bottomRightCorner(Index, Index).*/ -inline const Block<const Derived> bottomRightCorner(Index cRows, Index cCols) const +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topLeftCorner(Index cRows, Index cCols) const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), 0, 0, cRows, cCols); +} + + + +/// \returns an expression of a bottom-right corner of \c *this with either dynamic or fixed sizes. +/// +/// \param cRows the number of rows in the corner +/// \param cCols the number of columns in the corner +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example: \include MatrixBase_bottomRightCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_bottomRightCorner_int_int.out +/// +/// The number of rows \a blockRows and columns \a blockCols can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename FixedBlockXpr<...,...>::Type +#endif +bottomRightCorner(NRowsType cRows, NColsType cCols) { - return Block<const Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); + return typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), rows() - internal::get_runtime_value(cRows), cols() - internal::get_runtime_value(cCols), + internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); } -/** \returns an expression of a fixed-size bottom-right corner of *this. - * - * The template parameters CRows and CCols are the number of rows and columns in the corner. - * - * Example: \include MatrixBase_template_int_int_bottomRightCorner.cpp - * Output: \verbinclude MatrixBase_template_int_int_bottomRightCorner.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of bottomRightCorner(NRowsType, NColsType). +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstFixedBlockXpr<...,...>::Type +#endif +bottomRightCorner(NRowsType cRows, NColsType cCols) const +{ + return typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), rows() - internal::get_runtime_value(cRows), cols() - internal::get_runtime_value(cCols), + internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); +} + +/// \returns an expression of a fixed-size bottom-right corner of \c *this. +/// +/// The template parameters CRows and CCols are the number of rows and columns in the corner. +/// +/// Example: \include MatrixBase_template_int_int_bottomRightCorner.cpp +/// Output: \verbinclude MatrixBase_template_int_int_bottomRightCorner.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> bottomRightCorner() +EIGEN_DEVICE_FUNC +inline typename FixedBlockXpr<CRows,CCols>::Type bottomRightCorner() { - return Block<Derived, CRows, CCols>(derived(), rows() - CRows, cols() - CCols); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - CRows, cols() - CCols); } -/** This is the const version of bottomRightCorner<int, int>().*/ +/// This is the const version of bottomRightCorner<int, int>(). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> bottomRightCorner() const -{ - return Block<const Derived, CRows, CCols>(derived(), rows() - CRows, cols() - CCols); -} - -/** \returns an expression of a bottom-right corner of *this. - * - * \tparam CRows number of rows in corner as specified at compile-time - * \tparam CCols number of columns in corner as specified at compile-time - * \param cRows number of rows in corner as specified at run-time - * \param cCols number of columns in corner as specified at run-time - * - * This function is mainly useful for corners where the number of rows is specified at compile-time - * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time - * information should not contradict. In other words, \a cRows should equal \a CRows unless - * \a CRows is \a Dynamic, and the same for the number of columns. - * - * Example: \include MatrixBase_template_int_int_bottomRightCorner_int_int.cpp - * Output: \verbinclude MatrixBase_template_int_int_bottomRightCorner_int_int.out - * - * \sa class Block - */ +EIGEN_DEVICE_FUNC +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomRightCorner() const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), rows() - CRows, cols() - CCols); +} + +/// \returns an expression of a bottom-right corner of \c *this. +/// +/// \tparam CRows number of rows in corner as specified at compile-time +/// \tparam CCols number of columns in corner as specified at compile-time +/// \param cRows number of rows in corner as specified at run-time +/// \param cCols number of columns in corner as specified at run-time +/// +/// This function is mainly useful for corners where the number of rows is specified at compile-time +/// and the number of columns is specified at run-time, or vice versa. The compile-time and run-time +/// information should not contradict. In other words, \a cRows should equal \a CRows unless +/// \a CRows is \a Dynamic, and the same for the number of columns. +/// +/// Example: \include MatrixBase_template_int_int_bottomRightCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_template_int_int_bottomRightCorner_int_int.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> bottomRightCorner(Index cRows, Index cCols) +inline typename FixedBlockXpr<CRows,CCols>::Type bottomRightCorner(Index cRows, Index cCols) { - return Block<Derived, CRows, CCols>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - cRows, cols() - cCols, cRows, cCols); } -/** This is the const version of bottomRightCorner<int, int>(Index, Index).*/ +/// This is the const version of bottomRightCorner<int, int>(Index, Index). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> bottomRightCorner(Index cRows, Index cCols) const -{ - return Block<const Derived, CRows, CCols>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); -} - - - -/** \returns a dynamic-size expression of a bottom-left corner of *this. - * - * \param cRows the number of rows in the corner - * \param cCols the number of columns in the corner - * - * Example: \include MatrixBase_bottomLeftCorner_int_int.cpp - * Output: \verbinclude MatrixBase_bottomLeftCorner_int_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline Block<Derived> bottomLeftCorner(Index cRows, Index cCols) -{ - return Block<Derived>(derived(), rows() - cRows, 0, cRows, cCols); -} - -/** This is the const version of bottomLeftCorner(Index, Index).*/ -inline const Block<const Derived> bottomLeftCorner(Index cRows, Index cCols) const +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomRightCorner(Index cRows, Index cCols) const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), rows() - cRows, cols() - cCols, cRows, cCols); +} + + + +/// \returns an expression of a bottom-left corner of \c *this with either dynamic or fixed sizes. +/// +/// \param cRows the number of rows in the corner +/// \param cCols the number of columns in the corner +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example: \include MatrixBase_bottomLeftCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_bottomLeftCorner_int_int.out +/// +/// The number of rows \a blockRows and columns \a blockCols can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename FixedBlockXpr<...,...>::Type +#endif +bottomLeftCorner(NRowsType cRows, NColsType cCols) { - return Block<const Derived>(derived(), rows() - cRows, 0, cRows, cCols); + return typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), rows() - internal::get_runtime_value(cRows), 0, + internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); } -/** \returns an expression of a fixed-size bottom-left corner of *this. - * - * The template parameters CRows and CCols are the number of rows and columns in the corner. - * - * Example: \include MatrixBase_template_int_int_bottomLeftCorner.cpp - * Output: \verbinclude MatrixBase_template_int_int_bottomLeftCorner.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of bottomLeftCorner(NRowsType, NColsType). +template<typename NRowsType, typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename ConstFixedBlockXpr<...,...>::Type +#endif +bottomLeftCorner(NRowsType cRows, NColsType cCols) const +{ + return typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type + (derived(), rows() - internal::get_runtime_value(cRows), 0, + internal::get_runtime_value(cRows), internal::get_runtime_value(cCols)); +} + +/// \returns an expression of a fixed-size bottom-left corner of \c *this. +/// +/// The template parameters CRows and CCols are the number of rows and columns in the corner. +/// +/// Example: \include MatrixBase_template_int_int_bottomLeftCorner.cpp +/// Output: \verbinclude MatrixBase_template_int_int_bottomLeftCorner.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> bottomLeftCorner() +EIGEN_DEVICE_FUNC +inline typename FixedBlockXpr<CRows,CCols>::Type bottomLeftCorner() { - return Block<Derived, CRows, CCols>(derived(), rows() - CRows, 0); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - CRows, 0); } -/** This is the const version of bottomLeftCorner<int, int>().*/ +/// This is the const version of bottomLeftCorner<int, int>(). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> bottomLeftCorner() const -{ - return Block<const Derived, CRows, CCols>(derived(), rows() - CRows, 0); -} - -/** \returns an expression of a bottom-left corner of *this. - * - * \tparam CRows number of rows in corner as specified at compile-time - * \tparam CCols number of columns in corner as specified at compile-time - * \param cRows number of rows in corner as specified at run-time - * \param cCols number of columns in corner as specified at run-time - * - * This function is mainly useful for corners where the number of rows is specified at compile-time - * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time - * information should not contradict. In other words, \a cRows should equal \a CRows unless - * \a CRows is \a Dynamic, and the same for the number of columns. - * - * Example: \include MatrixBase_template_int_int_bottomLeftCorner_int_int.cpp - * Output: \verbinclude MatrixBase_template_int_int_bottomLeftCorner_int_int.out - * - * \sa class Block - */ +EIGEN_DEVICE_FUNC +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomLeftCorner() const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), rows() - CRows, 0); +} + +/// \returns an expression of a bottom-left corner of \c *this. +/// +/// \tparam CRows number of rows in corner as specified at compile-time +/// \tparam CCols number of columns in corner as specified at compile-time +/// \param cRows number of rows in corner as specified at run-time +/// \param cCols number of columns in corner as specified at run-time +/// +/// This function is mainly useful for corners where the number of rows is specified at compile-time +/// and the number of columns is specified at run-time, or vice versa. The compile-time and run-time +/// information should not contradict. In other words, \a cRows should equal \a CRows unless +/// \a CRows is \a Dynamic, and the same for the number of columns. +/// +/// Example: \include MatrixBase_template_int_int_bottomLeftCorner_int_int.cpp +/// Output: \verbinclude MatrixBase_template_int_int_bottomLeftCorner_int_int.out +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa class Block +/// template<int CRows, int CCols> -inline Block<Derived, CRows, CCols> bottomLeftCorner(Index cRows, Index cCols) +inline typename FixedBlockXpr<CRows,CCols>::Type bottomLeftCorner(Index cRows, Index cCols) { - return Block<Derived, CRows, CCols>(derived(), rows() - cRows, 0, cRows, cCols); + return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - cRows, 0, cRows, cCols); } -/** This is the const version of bottomLeftCorner<int, int>(Index, Index).*/ +/// This is the const version of bottomLeftCorner<int, int>(Index, Index). template<int CRows, int CCols> -inline const Block<const Derived, CRows, CCols> bottomLeftCorner(Index cRows, Index cCols) const -{ - return Block<const Derived, CRows, CCols>(derived(), rows() - cRows, 0, cRows, cCols); -} - - - -/** \returns a block consisting of the top rows of *this. - * - * \param n the number of rows in the block - * - * Example: \include MatrixBase_topRows_int.cpp - * Output: \verbinclude MatrixBase_topRows_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline RowsBlockXpr topRows(Index n) -{ - return RowsBlockXpr(derived(), 0, 0, n, cols()); -} - -/** This is the const version of topRows(Index).*/ -inline ConstRowsBlockXpr topRows(Index n) const +inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomLeftCorner(Index cRows, Index cCols) const +{ + return typename ConstFixedBlockXpr<CRows,CCols>::Type(derived(), rows() - cRows, 0, cRows, cCols); +} + + + +/// \returns a block consisting of the top rows of \c *this. +/// +/// \param n the number of rows in the block +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// +/// Example: \include MatrixBase_topRows_int.cpp +/// Output: \verbinclude MatrixBase_topRows_int.out +/// +/// The number of rows \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type +#else +inline typename NRowsBlockXpr<...>::Type +#endif +topRows(NRowsType n) { - return ConstRowsBlockXpr(derived(), 0, 0, n, cols()); + return typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type + (derived(), 0, 0, internal::get_runtime_value(n), cols()); } -/** \returns a block consisting of the top rows of *this. - * - * \tparam N the number of rows in the block as specified at compile-time - * \param n the number of rows in the block as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_topRows.cpp - * Output: \verbinclude MatrixBase_template_int_topRows.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of topRows(NRowsType). +template<typename NRowsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type +#else +inline const typename ConstNRowsBlockXpr<...>::Type +#endif +topRows(NRowsType n) const +{ + return typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type + (derived(), 0, 0, internal::get_runtime_value(n), cols()); +} + +/// \returns a block consisting of the top rows of \c *this. +/// +/// \tparam N the number of rows in the block as specified at compile-time +/// \param n the number of rows in the block as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_topRows.cpp +/// Output: \verbinclude MatrixBase_template_int_topRows.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename NRowsBlockXpr<N>::Type topRows(Index n = N) { return typename NRowsBlockXpr<N>::Type(derived(), 0, 0, n, cols()); } -/** This is the const version of topRows<int>().*/ +/// This is the const version of topRows<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstNRowsBlockXpr<N>::Type topRows(Index n = N) const { return typename ConstNRowsBlockXpr<N>::Type(derived(), 0, 0, n, cols()); @@ -416,47 +603,74 @@ inline typename ConstNRowsBlockXpr<N>::Type topRows(Index n = N) const -/** \returns a block consisting of the bottom rows of *this. - * - * \param n the number of rows in the block - * - * Example: \include MatrixBase_bottomRows_int.cpp - * Output: \verbinclude MatrixBase_bottomRows_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline RowsBlockXpr bottomRows(Index n) -{ - return RowsBlockXpr(derived(), rows() - n, 0, n, cols()); -} - -/** This is the const version of bottomRows(Index).*/ -inline ConstRowsBlockXpr bottomRows(Index n) const +/// \returns a block consisting of the bottom rows of \c *this. +/// +/// \param n the number of rows in the block +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// +/// Example: \include MatrixBase_bottomRows_int.cpp +/// Output: \verbinclude MatrixBase_bottomRows_int.out +/// +/// The number of rows \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type +#else +inline typename NRowsBlockXpr<...>::Type +#endif +bottomRows(NRowsType n) { - return ConstRowsBlockXpr(derived(), rows() - n, 0, n, cols()); + return typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type + (derived(), rows() - internal::get_runtime_value(n), 0, internal::get_runtime_value(n), cols()); } -/** \returns a block consisting of the bottom rows of *this. - * - * \tparam N the number of rows in the block as specified at compile-time - * \param n the number of rows in the block as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_bottomRows.cpp - * Output: \verbinclude MatrixBase_template_int_bottomRows.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of bottomRows(NRowsType). +template<typename NRowsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type +#else +inline const typename ConstNRowsBlockXpr<...>::Type +#endif +bottomRows(NRowsType n) const +{ + return typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type + (derived(), rows() - internal::get_runtime_value(n), 0, internal::get_runtime_value(n), cols()); +} + +/// \returns a block consisting of the bottom rows of \c *this. +/// +/// \tparam N the number of rows in the block as specified at compile-time +/// \param n the number of rows in the block as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_bottomRows.cpp +/// Output: \verbinclude MatrixBase_template_int_bottomRows.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename NRowsBlockXpr<N>::Type bottomRows(Index n = N) { return typename NRowsBlockXpr<N>::Type(derived(), rows() - n, 0, n, cols()); } -/** This is the const version of bottomRows<int>().*/ +/// This is the const version of bottomRows<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstNRowsBlockXpr<N>::Type bottomRows(Index n = N) const { return typename ConstNRowsBlockXpr<N>::Type(derived(), rows() - n, 0, n, cols()); @@ -464,49 +678,76 @@ inline typename ConstNRowsBlockXpr<N>::Type bottomRows(Index n = N) const -/** \returns a block consisting of a range of rows of *this. - * - * \param startRow the index of the first row in the block - * \param n the number of rows in the block - * - * Example: \include DenseBase_middleRows_int.cpp - * Output: \verbinclude DenseBase_middleRows_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline RowsBlockXpr middleRows(Index startRow, Index n) -{ - return RowsBlockXpr(derived(), startRow, 0, n, cols()); -} - -/** This is the const version of middleRows(Index,Index).*/ -inline ConstRowsBlockXpr middleRows(Index startRow, Index n) const +/// \returns a block consisting of a range of rows of \c *this. +/// +/// \param startRow the index of the first row in the block +/// \param n the number of rows in the block +/// \tparam NRowsType the type of the value handling the number of rows in the block, typically Index. +/// +/// Example: \include DenseBase_middleRows_int.cpp +/// Output: \verbinclude DenseBase_middleRows_int.out +/// +/// The number of rows \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NRowsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type +#else +inline typename NRowsBlockXpr<...>::Type +#endif +middleRows(Index startRow, NRowsType n) { - return ConstRowsBlockXpr(derived(), startRow, 0, n, cols()); + return typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type + (derived(), startRow, 0, internal::get_runtime_value(n), cols()); } -/** \returns a block consisting of a range of rows of *this. - * - * \tparam N the number of rows in the block as specified at compile-time - * \param startRow the index of the first row in the block - * \param n the number of rows in the block as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include DenseBase_template_int_middleRows.cpp - * Output: \verbinclude DenseBase_template_int_middleRows.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of middleRows(Index,NRowsType). +template<typename NRowsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type +#else +inline const typename ConstNRowsBlockXpr<...>::Type +#endif +middleRows(Index startRow, NRowsType n) const +{ + return typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type + (derived(), startRow, 0, internal::get_runtime_value(n), cols()); +} + +/// \returns a block consisting of a range of rows of \c *this. +/// +/// \tparam N the number of rows in the block as specified at compile-time +/// \param startRow the index of the first row in the block +/// \param n the number of rows in the block as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include DenseBase_template_int_middleRows.cpp +/// Output: \verbinclude DenseBase_template_int_middleRows.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename NRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = N) { return typename NRowsBlockXpr<N>::Type(derived(), startRow, 0, n, cols()); } -/** This is the const version of middleRows<int>().*/ +/// This is the const version of middleRows<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstNRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = N) const { return typename ConstNRowsBlockXpr<N>::Type(derived(), startRow, 0, n, cols()); @@ -514,47 +755,74 @@ inline typename ConstNRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = -/** \returns a block consisting of the left columns of *this. - * - * \param n the number of columns in the block - * - * Example: \include MatrixBase_leftCols_int.cpp - * Output: \verbinclude MatrixBase_leftCols_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline ColsBlockXpr leftCols(Index n) -{ - return ColsBlockXpr(derived(), 0, 0, rows(), n); -} - -/** This is the const version of leftCols(Index).*/ -inline ConstColsBlockXpr leftCols(Index n) const +/// \returns a block consisting of the left columns of \c *this. +/// +/// \param n the number of columns in the block +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example: \include MatrixBase_leftCols_int.cpp +/// Output: \verbinclude MatrixBase_leftCols_int.out +/// +/// The number of columns \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename NColsBlockXpr<...>::Type +#endif +leftCols(NColsType n) { - return ConstColsBlockXpr(derived(), 0, 0, rows(), n); + return typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, 0, rows(), internal::get_runtime_value(n)); } -/** \returns a block consisting of the left columns of *this. - * - * \tparam N the number of columns in the block as specified at compile-time - * \param n the number of columns in the block as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_leftCols.cpp - * Output: \verbinclude MatrixBase_template_int_leftCols.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of leftCols(NColsType). +template<typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstNColsBlockXpr<...>::Type +#endif +leftCols(NColsType n) const +{ + return typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, 0, rows(), internal::get_runtime_value(n)); +} + +/// \returns a block consisting of the left columns of \c *this. +/// +/// \tparam N the number of columns in the block as specified at compile-time +/// \param n the number of columns in the block as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_leftCols.cpp +/// Output: \verbinclude MatrixBase_template_int_leftCols.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename NColsBlockXpr<N>::Type leftCols(Index n = N) { return typename NColsBlockXpr<N>::Type(derived(), 0, 0, rows(), n); } -/** This is the const version of leftCols<int>().*/ +/// This is the const version of leftCols<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstNColsBlockXpr<N>::Type leftCols(Index n = N) const { return typename ConstNColsBlockXpr<N>::Type(derived(), 0, 0, rows(), n); @@ -562,47 +830,74 @@ inline typename ConstNColsBlockXpr<N>::Type leftCols(Index n = N) const -/** \returns a block consisting of the right columns of *this. - * - * \param n the number of columns in the block - * - * Example: \include MatrixBase_rightCols_int.cpp - * Output: \verbinclude MatrixBase_rightCols_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline ColsBlockXpr rightCols(Index n) -{ - return ColsBlockXpr(derived(), 0, cols() - n, rows(), n); -} - -/** This is the const version of rightCols(Index).*/ -inline ConstColsBlockXpr rightCols(Index n) const +/// \returns a block consisting of the right columns of \c *this. +/// +/// \param n the number of columns in the block +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example: \include MatrixBase_rightCols_int.cpp +/// Output: \verbinclude MatrixBase_rightCols_int.out +/// +/// The number of columns \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename NColsBlockXpr<...>::Type +#endif +rightCols(NColsType n) { - return ConstColsBlockXpr(derived(), 0, cols() - n, rows(), n); + return typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, cols() - internal::get_runtime_value(n), rows(), internal::get_runtime_value(n)); } -/** \returns a block consisting of the right columns of *this. - * - * \tparam N the number of columns in the block as specified at compile-time - * \param n the number of columns in the block as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_rightCols.cpp - * Output: \verbinclude MatrixBase_template_int_rightCols.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of rightCols(NColsType). +template<typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstNColsBlockXpr<...>::Type +#endif +rightCols(NColsType n) const +{ + return typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, cols() - internal::get_runtime_value(n), rows(), internal::get_runtime_value(n)); +} + +/// \returns a block consisting of the right columns of \c *this. +/// +/// \tparam N the number of columns in the block as specified at compile-time +/// \param n the number of columns in the block as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_rightCols.cpp +/// Output: \verbinclude MatrixBase_template_int_rightCols.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename NColsBlockXpr<N>::Type rightCols(Index n = N) { return typename NColsBlockXpr<N>::Type(derived(), 0, cols() - n, rows(), n); } -/** This is the const version of rightCols<int>().*/ +/// This is the const version of rightCols<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstNColsBlockXpr<N>::Type rightCols(Index n = N) const { return typename ConstNColsBlockXpr<N>::Type(derived(), 0, cols() - n, rows(), n); @@ -610,49 +905,76 @@ inline typename ConstNColsBlockXpr<N>::Type rightCols(Index n = N) const -/** \returns a block consisting of a range of columns of *this. - * - * \param startCol the index of the first column in the block - * \param numCols the number of columns in the block - * - * Example: \include DenseBase_middleCols_int.cpp - * Output: \verbinclude DenseBase_middleCols_int.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ -inline ColsBlockXpr middleCols(Index startCol, Index numCols) -{ - return ColsBlockXpr(derived(), 0, startCol, rows(), numCols); -} - -/** This is the const version of middleCols(Index,Index).*/ -inline ConstColsBlockXpr middleCols(Index startCol, Index numCols) const +/// \returns a block consisting of a range of columns of \c *this. +/// +/// \param startCol the index of the first column in the block +/// \param numCols the number of columns in the block +/// \tparam NColsType the type of the value handling the number of columns in the block, typically Index. +/// +/// Example: \include DenseBase_middleCols_int.cpp +/// Output: \verbinclude DenseBase_middleCols_int.out +/// +/// The number of columns \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type +#else +inline typename NColsBlockXpr<...>::Type +#endif +middleCols(Index startCol, NColsType numCols) { - return ConstColsBlockXpr(derived(), 0, startCol, rows(), numCols); + return typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, startCol, rows(), internal::get_runtime_value(numCols)); } -/** \returns a block consisting of a range of columns of *this. - * - * \tparam N the number of columns in the block as specified at compile-time - * \param startCol the index of the first column in the block - * \param n the number of columns in the block as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include DenseBase_template_int_middleCols.cpp - * Output: \verbinclude DenseBase_template_int_middleCols.out - * - * \sa class Block, block(Index,Index,Index,Index) - */ +/// This is the const version of middleCols(Index,NColsType). +template<typename NColsType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type +#else +inline const typename ConstNColsBlockXpr<...>::Type +#endif +middleCols(Index startCol, NColsType numCols) const +{ + return typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type + (derived(), 0, startCol, rows(), internal::get_runtime_value(numCols)); +} + +/// \returns a block consisting of a range of columns of \c *this. +/// +/// \tparam N the number of columns in the block as specified at compile-time +/// \param startCol the index of the first column in the block +/// \param n the number of columns in the block as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include DenseBase_template_int_middleCols.cpp +/// Output: \verbinclude DenseBase_template_int_middleCols.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename NColsBlockXpr<N>::Type middleCols(Index startCol, Index n = N) { return typename NColsBlockXpr<N>::Type(derived(), 0, startCol, rows(), n); } -/** This is the const version of middleCols<int>().*/ +/// This is the const version of middleCols<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstNColsBlockXpr<N>::Type middleCols(Index startCol, Index n = N) const { return typename ConstNColsBlockXpr<N>::Type(derived(), 0, startCol, rows(), n); @@ -660,274 +982,373 @@ inline typename ConstNColsBlockXpr<N>::Type middleCols(Index startCol, Index n = -/** \returns a fixed-size expression of a block in *this. - * - * The template parameters \a BlockRows and \a BlockCols are the number of - * rows and columns in the block. - * - * \param startRow the first row in the block - * \param startCol the first column in the block - * - * Example: \include MatrixBase_block_int_int.cpp - * Output: \verbinclude MatrixBase_block_int_int.out - * - * \note since block is a templated member, the keyword template has to be used - * if the matrix type is also a template parameter: \code m.template block<3,3>(1,1); \endcode - * - * \sa class Block, block(Index,Index,Index,Index) - */ -template<int BlockRows, int BlockCols> -inline Block<Derived, BlockRows, BlockCols> block(Index startRow, Index startCol) -{ - return Block<Derived, BlockRows, BlockCols>(derived(), startRow, startCol); -} - -/** This is the const version of block<>(Index, Index). */ -template<int BlockRows, int BlockCols> -inline const Block<const Derived, BlockRows, BlockCols> block(Index startRow, Index startCol) const -{ - return Block<const Derived, BlockRows, BlockCols>(derived(), startRow, startCol); -} - -/** \returns an expression of a block in *this. - * - * \tparam BlockRows number of rows in block as specified at compile-time - * \tparam BlockCols number of columns in block as specified at compile-time - * \param startRow the first row in the block - * \param startCol the first column in the block - * \param blockRows number of rows in block as specified at run-time - * \param blockCols number of columns in block as specified at run-time - * - * This function is mainly useful for blocks where the number of rows is specified at compile-time - * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time - * information should not contradict. In other words, \a blockRows should equal \a BlockRows unless - * \a BlockRows is \a Dynamic, and the same for the number of columns. - * - * Example: \include MatrixBase_template_int_int_block_int_int_int_int.cpp - * Output: \verbinclude MatrixBase_template_int_int_block_int_int_int_int.cpp - * - * \sa class Block, block(Index,Index,Index,Index) - */ -template<int BlockRows, int BlockCols> -inline Block<Derived, BlockRows, BlockCols> block(Index startRow, Index startCol, +/// \returns a fixed-size expression of a block of \c *this. +/// +/// The template parameters \a NRows and \a NCols are the number of +/// rows and columns in the block. +/// +/// \param startRow the first row in the block +/// \param startCol the first column in the block +/// +/// Example: \include MatrixBase_block_int_int.cpp +/// Output: \verbinclude MatrixBase_block_int_int.out +/// +/// \note The usage of of this overload is discouraged from %Eigen 3.4, better used the generic +/// block(Index,Index,NRowsType,NColsType), here is the one-to-one equivalence: +/// \code +/// mat.template block<NRows,NCols>(i,j) <--> mat.block(i,j,fix<NRows>,fix<NCols>) +/// \endcode +/// +/// \note since block is a templated member, the keyword template has to be used +/// if the matrix type is also a template parameter: \code m.template block<3,3>(1,1); \endcode +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<int NRows, int NCols> +EIGEN_DEVICE_FUNC +inline typename FixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol) +{ + return typename FixedBlockXpr<NRows,NCols>::Type(derived(), startRow, startCol); +} + +/// This is the const version of block<>(Index, Index). */ +template<int NRows, int NCols> +EIGEN_DEVICE_FUNC +inline const typename ConstFixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol) const +{ + return typename ConstFixedBlockXpr<NRows,NCols>::Type(derived(), startRow, startCol); +} + +/// \returns an expression of a block of \c *this. +/// +/// \tparam NRows number of rows in block as specified at compile-time +/// \tparam NCols number of columns in block as specified at compile-time +/// \param startRow the first row in the block +/// \param startCol the first column in the block +/// \param blockRows number of rows in block as specified at run-time +/// \param blockCols number of columns in block as specified at run-time +/// +/// This function is mainly useful for blocks where the number of rows is specified at compile-time +/// and the number of columns is specified at run-time, or vice versa. The compile-time and run-time +/// information should not contradict. In other words, \a blockRows should equal \a NRows unless +/// \a NRows is \a Dynamic, and the same for the number of columns. +/// +/// Example: \include MatrixBase_template_int_int_block_int_int_int_int.cpp +/// Output: \verbinclude MatrixBase_template_int_int_block_int_int_int_int.cpp +/// +/// \note The usage of of this overload is discouraged from %Eigen 3.4, better used the generic +/// block(Index,Index,NRowsType,NColsType), here is the one-to-one complete equivalence: +/// \code +/// mat.template block<NRows,NCols>(i,j,rows,cols) <--> mat.block(i,j,fix<NRows>(rows),fix<NCols>(cols)) +/// \endcode +/// If we known that, e.g., NRows==Dynamic and NCols!=Dynamic, then the equivalence becomes: +/// \code +/// mat.template block<Dynamic,NCols>(i,j,rows,NCols) <--> mat.block(i,j,rows,fix<NCols>) +/// \endcode +/// +EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL +/// +/// \sa block(Index,Index,NRowsType,NColsType), class Block +/// +template<int NRows, int NCols> +inline typename FixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol, Index blockRows, Index blockCols) { - return Block<Derived, BlockRows, BlockCols>(derived(), startRow, startCol, blockRows, blockCols); + return typename FixedBlockXpr<NRows,NCols>::Type(derived(), startRow, startCol, blockRows, blockCols); } -/** This is the const version of block<>(Index, Index, Index, Index). */ -template<int BlockRows, int BlockCols> -inline const Block<const Derived, BlockRows, BlockCols> block(Index startRow, Index startCol, +/// This is the const version of block<>(Index, Index, Index, Index). +template<int NRows, int NCols> +inline const typename ConstFixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol, Index blockRows, Index blockCols) const { - return Block<const Derived, BlockRows, BlockCols>(derived(), startRow, startCol, blockRows, blockCols); + return typename ConstFixedBlockXpr<NRows,NCols>::Type(derived(), startRow, startCol, blockRows, blockCols); } -/** \returns an expression of the \a i-th column of *this. Note that the numbering starts at 0. - * - * Example: \include MatrixBase_col.cpp - * Output: \verbinclude MatrixBase_col.out - * +/// \returns an expression of the \a i-th column of \c *this. Note that the numbering starts at 0. +/// +/// Example: \include MatrixBase_col.cpp +/// Output: \verbinclude MatrixBase_col.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major) +/** * \sa row(), class Block */ +EIGEN_DEVICE_FUNC inline ColXpr col(Index i) { return ColXpr(derived(), i); } -/** This is the const version of col(). */ +/// This is the const version of col(). +EIGEN_DEVICE_FUNC inline ConstColXpr col(Index i) const { return ConstColXpr(derived(), i); } -/** \returns an expression of the \a i-th row of *this. Note that the numbering starts at 0. - * - * Example: \include MatrixBase_row.cpp - * Output: \verbinclude MatrixBase_row.out - * +/// \returns an expression of the \a i-th row of \c *this. Note that the numbering starts at 0. +/// +/// Example: \include MatrixBase_row.cpp +/// Output: \verbinclude MatrixBase_row.out +/// +EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major) +/** * \sa col(), class Block */ +EIGEN_DEVICE_FUNC inline RowXpr row(Index i) { return RowXpr(derived(), i); } -/** This is the const version of row(). */ +/// This is the const version of row(). */ +EIGEN_DEVICE_FUNC inline ConstRowXpr row(Index i) const { return ConstRowXpr(derived(), i); } -/** \returns a dynamic-size expression of a segment (i.e. a vector block) in *this. - * - * \only_for_vectors - * - * \param start the first coefficient in the segment - * \param n the number of coefficients in the segment - * - * Example: \include MatrixBase_segment_int_int.cpp - * Output: \verbinclude MatrixBase_segment_int_int.out - * - * \note Even though the returned expression has dynamic size, in the case - * when it is applied to a fixed-size vector, it inherits a fixed maximal size, - * which means that evaluating it does not cause a dynamic memory allocation. - * - * \sa class Block, segment(Index) - */ -inline SegmentReturnType segment(Index start, Index n) +/// \returns an expression of a segment (i.e. a vector block) in \c *this with either dynamic or fixed sizes. +/// +/// \only_for_vectors +/// +/// \param start the first coefficient in the segment +/// \param n the number of coefficients in the segment +/// \tparam NType the type of the value handling the number of coefficients in the segment, typically Index. +/// +/// Example: \include MatrixBase_segment_int_int.cpp +/// Output: \verbinclude MatrixBase_segment_int_int.out +/// +/// The number of coefficients \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +/// \note Even in the case that the returned expression has dynamic size, in the case +/// when it is applied to a fixed-size vector, it inherits a fixed maximal size, +/// which means that evaluating it does not cause a dynamic memory allocation. +/// +/// \sa block(Index,Index,NRowsType,NColsType), fix<N>, fix<N>(int), class Block +/// +template<typename NType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type +#else +inline typename FixedSegmentReturnType<...>::Type +#endif +segment(Index start, NType n) { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) - return SegmentReturnType(derived(), start, n); + return typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type + (derived(), start, internal::get_runtime_value(n)); } -/** This is the const version of segment(Index,Index).*/ -inline ConstSegmentReturnType segment(Index start, Index n) const +/// This is the const version of segment(Index,NType). +template<typename NType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type +#else +inline const typename ConstFixedSegmentReturnType<...>::Type +#endif +segment(Index start, NType n) const { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) - return ConstSegmentReturnType(derived(), start, n); -} - -/** \returns a dynamic-size expression of the first coefficients of *this. - * - * \only_for_vectors - * - * \param n the number of coefficients in the segment - * - * Example: \include MatrixBase_start_int.cpp - * Output: \verbinclude MatrixBase_start_int.out - * - * \note Even though the returned expression has dynamic size, in the case - * when it is applied to a fixed-size vector, it inherits a fixed maximal size, - * which means that evaluating it does not cause a dynamic memory allocation. - * - * \sa class Block, block(Index,Index) - */ -inline SegmentReturnType head(Index n) + return typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type + (derived(), start, internal::get_runtime_value(n)); +} + +/// \returns an expression of the first coefficients of \c *this with either dynamic or fixed sizes. +/// +/// \only_for_vectors +/// +/// \param n the number of coefficients in the segment +/// \tparam NType the type of the value handling the number of coefficients in the segment, typically Index. +/// +/// Example: \include MatrixBase_start_int.cpp +/// Output: \verbinclude MatrixBase_start_int.out +/// +/// The number of coefficients \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +/// \note Even in the case that the returned expression has dynamic size, in the case +/// when it is applied to a fixed-size vector, it inherits a fixed maximal size, +/// which means that evaluating it does not cause a dynamic memory allocation. +/// +/// \sa class Block, block(Index,Index) +/// +template<typename NType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type +#else +inline typename FixedSegmentReturnType<...>::Type +#endif +head(NType n) { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) - return SegmentReturnType(derived(), 0, n); + return typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type + (derived(), 0, internal::get_runtime_value(n)); } -/** This is the const version of head(Index).*/ -inline ConstSegmentReturnType head(Index n) const +/// This is the const version of head(NType). +template<typename NType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type +#else +inline const typename ConstFixedSegmentReturnType<...>::Type +#endif +head(NType n) const { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) - return ConstSegmentReturnType(derived(), 0, n); -} - -/** \returns a dynamic-size expression of the last coefficients of *this. - * - * \only_for_vectors - * - * \param n the number of coefficients in the segment - * - * Example: \include MatrixBase_end_int.cpp - * Output: \verbinclude MatrixBase_end_int.out - * - * \note Even though the returned expression has dynamic size, in the case - * when it is applied to a fixed-size vector, it inherits a fixed maximal size, - * which means that evaluating it does not cause a dynamic memory allocation. - * - * \sa class Block, block(Index,Index) - */ -inline SegmentReturnType tail(Index n) + return typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type + (derived(), 0, internal::get_runtime_value(n)); +} + +/// \returns an expression of a last coefficients of \c *this with either dynamic or fixed sizes. +/// +/// \only_for_vectors +/// +/// \param n the number of coefficients in the segment +/// \tparam NType the type of the value handling the number of coefficients in the segment, typically Index. +/// +/// Example: \include MatrixBase_end_int.cpp +/// Output: \verbinclude MatrixBase_end_int.out +/// +/// The number of coefficients \a n can also be specified at compile-time by passing Eigen::fix<N>, +/// or Eigen::fix<N>(n) as arguments. +/// See \link block(Index,Index,NRowsType,NColsType) block() \endlink for the details. +/// +/// \note Even in the case that the returned expression has dynamic size, in the case +/// when it is applied to a fixed-size vector, it inherits a fixed maximal size, +/// which means that evaluating it does not cause a dynamic memory allocation. +/// +/// \sa class Block, block(Index,Index) +/// +template<typename NType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type +#else +inline typename FixedSegmentReturnType<...>::Type +#endif +tail(NType n) { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) - return SegmentReturnType(derived(), this->size() - n, n); + return typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type + (derived(), this->size() - internal::get_runtime_value(n), internal::get_runtime_value(n)); } -/** This is the const version of tail(Index).*/ -inline ConstSegmentReturnType tail(Index n) const +/// This is the const version of tail(Index). +template<typename NType> +EIGEN_DEVICE_FUNC +#ifndef EIGEN_PARSED_BY_DOXYGEN +inline const typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type +#else +inline const typename ConstFixedSegmentReturnType<...>::Type +#endif +tail(NType n) const { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) - return ConstSegmentReturnType(derived(), this->size() - n, n); -} - -/** \returns a fixed-size expression of a segment (i.e. a vector block) in \c *this - * - * \only_for_vectors - * - * \tparam N the number of coefficients in the segment as specified at compile-time - * \param start the index of the first element in the segment - * \param n the number of coefficients in the segment as specified at compile-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_segment.cpp - * Output: \verbinclude MatrixBase_template_int_segment.out - * - * \sa class Block - */ + return typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type + (derived(), this->size() - internal::get_runtime_value(n), internal::get_runtime_value(n)); +} + +/// \returns a fixed-size expression of a segment (i.e. a vector block) in \c *this +/// +/// \only_for_vectors +/// +/// \tparam N the number of coefficients in the segment as specified at compile-time +/// \param start the index of the first element in the segment +/// \param n the number of coefficients in the segment as specified at compile-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_segment.cpp +/// Output: \verbinclude MatrixBase_template_int_segment.out +/// +/// \sa segment(Index,NType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename FixedSegmentReturnType<N>::Type segment(Index start, Index n = N) { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) return typename FixedSegmentReturnType<N>::Type(derived(), start, n); } -/** This is the const version of segment<int>(Index).*/ +/// This is the const version of segment<int>(Index). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstFixedSegmentReturnType<N>::Type segment(Index start, Index n = N) const { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) return typename ConstFixedSegmentReturnType<N>::Type(derived(), start, n); } -/** \returns a fixed-size expression of the first coefficients of *this. - * - * \only_for_vectors - * - * \tparam N the number of coefficients in the segment as specified at compile-time - * \param n the number of coefficients in the segment as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_start.cpp - * Output: \verbinclude MatrixBase_template_int_start.out - * - * \sa class Block - */ +/// \returns a fixed-size expression of the first coefficients of \c *this. +/// +/// \only_for_vectors +/// +/// \tparam N the number of coefficients in the segment as specified at compile-time +/// \param n the number of coefficients in the segment as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_start.cpp +/// Output: \verbinclude MatrixBase_template_int_start.out +/// +/// \sa head(NType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename FixedSegmentReturnType<N>::Type head(Index n = N) { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) return typename FixedSegmentReturnType<N>::Type(derived(), 0, n); } -/** This is the const version of head<int>().*/ +/// This is the const version of head<int>(). template<int N> +EIGEN_DEVICE_FUNC inline typename ConstFixedSegmentReturnType<N>::Type head(Index n = N) const { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) return typename ConstFixedSegmentReturnType<N>::Type(derived(), 0, n); } -/** \returns a fixed-size expression of the last coefficients of *this. - * - * \only_for_vectors - * - * \tparam N the number of coefficients in the segment as specified at compile-time - * \param n the number of coefficients in the segment as specified at run-time - * - * The compile-time and run-time information should not contradict. In other words, - * \a n should equal \a N unless \a N is \a Dynamic. - * - * Example: \include MatrixBase_template_int_end.cpp - * Output: \verbinclude MatrixBase_template_int_end.out - * - * \sa class Block - */ +/// \returns a fixed-size expression of the last coefficients of \c *this. +/// +/// \only_for_vectors +/// +/// \tparam N the number of coefficients in the segment as specified at compile-time +/// \param n the number of coefficients in the segment as specified at run-time +/// +/// The compile-time and run-time information should not contradict. In other words, +/// \a n should equal \a N unless \a N is \a Dynamic. +/// +/// Example: \include MatrixBase_template_int_end.cpp +/// Output: \verbinclude MatrixBase_template_int_end.out +/// +/// \sa tail(NType), class Block +/// template<int N> +EIGEN_DEVICE_FUNC inline typename FixedSegmentReturnType<N>::Type tail(Index n = N) { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) return typename FixedSegmentReturnType<N>::Type(derived(), size() - n); } -/** This is the const version of tail<int>.*/ +/// This is the const version of tail<int>. template<int N> +EIGEN_DEVICE_FUNC inline typename ConstFixedSegmentReturnType<N>::Type tail(Index n = N) const { EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |