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-rw-r--r--Eigen/src/plugins/BlockMethods.h868
1 files changed, 626 insertions, 242 deletions
diff --git a/Eigen/src/plugins/BlockMethods.h b/Eigen/src/plugins/BlockMethods.h
index ac35a0086..63a52a6ff 100644
--- a/Eigen/src/plugins/BlockMethods.h
+++ b/Eigen/src/plugins/BlockMethods.h
@@ -40,68 +40,126 @@ typedef const VectorBlock<const Derived> ConstSegmentReturnType;
template<int Size> struct FixedSegmentReturnType { typedef VectorBlock<Derived, Size> Type; };
template<int Size> struct ConstFixedSegmentReturnType { typedef const VectorBlock<const Derived, Size> Type; };
+/// \internal inner-vector
+typedef Block<Derived,IsRowMajor?1:Dynamic,IsRowMajor?Dynamic:1,true> InnerVectorReturnType;
+typedef Block<const Derived,IsRowMajor?1:Dynamic,IsRowMajor?Dynamic:1,true> ConstInnerVectorReturnType;
+
+/// \internal set of inner-vectors
+typedef Block<Derived,Dynamic,Dynamic,true> InnerVectorsReturnType;
+typedef Block<const Derived,Dynamic,Dynamic,true> ConstInnerVectorsReturnType;
+
#endif // not EIGEN_PARSED_BY_DOXYGEN
-/// \returns a dynamic-size expression of a block in *this.
+/// \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 the number of rows in the block
-/// \param blockCols the number of columns in the block
+/// \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: \include MatrixBase_block_int_int_int_int.cpp
+/// Example using runtime (aka dynamic) sizes: \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
+/// \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, block(Index,Index)
+/// \sa class Block, fix, fix<N>(int)
///
-EIGEN_DEVICE_FUNC
-inline BlockXpr block(Index startRow, Index startCol, Index blockRows, Index blockCols)
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename FixedBlockXpr<...,...>::Type
+#endif
+block(Index startRow, Index startCol, NRowsType blockRows, NColsType blockCols)
{
- return BlockXpr(derived(), startRow, startCol, blockRows, blockCols);
+ 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 block(Index,Index,Index,Index). */
-EIGEN_DEVICE_FUNC
-inline const ConstBlockXpr block(Index startRow, Index startCol, Index blockRows, Index blockCols) const
+/// This is the const version of block(Index,Index,NRowsType,NColsType)
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstFixedBlockXpr<...,...>::Type
+#endif
+block(Index startRow, Index startCol, NRowsType blockRows, NColsType blockCols) const
{
- return ConstBlockXpr(derived(), startRow, startCol, blockRows, blockCols);
+ 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 dynamic-size expression of a top-right corner of *this.
+/// \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: \include MatrixBase_topRightCorner_int_int.cpp
+/// 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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline BlockXpr topRightCorner(Index cRows, Index cCols)
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename FixedBlockXpr<...,...>::Type
+#endif
+topRightCorner(NRowsType cRows, NColsType cCols)
{
- return BlockXpr(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));
}
-/// This is the const version of topRightCorner(Index, Index).
-EIGEN_DEVICE_FUNC
-inline const ConstBlockXpr topRightCorner(Index cRows, Index cCols) const
+/// This is the const version of topRightCorner(NRowsType, NColsType).
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstFixedBlockXpr<...,...>::Type
+#endif
+topRightCorner(NRowsType cRows, NColsType cCols) const
{
- return ConstBlockXpr(derived(), 0, cols() - cCols, cRows, cCols);
+ 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 *this.
+/// \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
@@ -114,21 +172,21 @@ EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
/// \sa class Block, block<int,int>(Index,Index)
///
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline typename FixedBlockXpr<CRows,CCols>::Type topRightCorner()
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type topRightCorner()
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, cols() - CCols);
}
/// This is the const version of topRightCorner<int, int>().
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topRightCorner() const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 *this.
+/// \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
@@ -148,46 +206,67 @@ EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
/// \sa class Block
///
template<int CRows, int CCols>
-inline typename FixedBlockXpr<CRows,CCols>::Type topRightCorner(Index cRows, Index cCols)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type topRightCorner(Index cRows, Index cCols)
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, cols() - cCols, cRows, cCols);
}
/// This is the const version of topRightCorner<int, int>(Index, Index).
template<int CRows, int CCols>
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topRightCorner(Index cRows, Index cCols) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 a dynamic-size expression of a top-left corner of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline BlockXpr topLeftCorner(Index cRows, Index cCols)
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename FixedBlockXpr<...,...>::Type
+#endif
+topLeftCorner(NRowsType cRows, NColsType cCols)
{
- return BlockXpr(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));
}
/// This is the const version of topLeftCorner(Index, Index).
-EIGEN_DEVICE_FUNC
-inline const ConstBlockXpr topLeftCorner(Index cRows, Index cCols) const
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstFixedBlockXpr<...,...>::Type
+#endif
+topLeftCorner(NRowsType cRows, NColsType cCols) const
{
- return ConstBlockXpr(derived(), 0, 0, cRows, cCols);
+ 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 *this.
+/// \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.
///
@@ -196,24 +275,24 @@ inline const ConstBlockXpr topLeftCorner(Index cRows, Index cCols) const
///
EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline typename FixedBlockXpr<CRows,CCols>::Type topLeftCorner()
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type topLeftCorner()
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, 0);
}
/// This is the const version of topLeftCorner<int, int>().
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topLeftCorner() const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 *this.
+/// \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
@@ -233,46 +312,69 @@ EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
/// \sa class Block
///
template<int CRows, int CCols>
-inline typename FixedBlockXpr<CRows,CCols>::Type topLeftCorner(Index cRows, Index cCols)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type topLeftCorner(Index cRows, Index cCols)
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), 0, 0, cRows, cCols);
}
/// This is the const version of topLeftCorner<int, int>(Index, Index).
template<int CRows, int CCols>
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type topLeftCorner(Index cRows, Index cCols) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 a dynamic-size expression of a bottom-right corner of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline BlockXpr bottomRightCorner(Index cRows, Index cCols)
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename FixedBlockXpr<...,...>::Type
+#endif
+bottomRightCorner(NRowsType cRows, NColsType cCols)
{
- return BlockXpr(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));
}
-/// This is the const version of bottomRightCorner(Index, Index).
-EIGEN_DEVICE_FUNC
-inline const ConstBlockXpr bottomRightCorner(Index cRows, Index cCols) const
+/// This is the const version of bottomRightCorner(NRowsType, NColsType).
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstFixedBlockXpr<...,...>::Type
+#endif
+bottomRightCorner(NRowsType cRows, NColsType cCols) const
{
- return ConstBlockXpr(derived(), rows() - cRows, cols() - cCols, cRows, cCols);
+ 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 *this.
+/// \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.
///
@@ -281,24 +383,24 @@ inline const ConstBlockXpr bottomRightCorner(Index cRows, Index cCols) const
///
EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline typename FixedBlockXpr<CRows,CCols>::Type bottomRightCorner()
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type bottomRightCorner()
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - CRows, cols() - CCols);
}
/// This is the const version of bottomRightCorner<int, int>().
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomRightCorner() const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 *this.
+/// \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
@@ -318,46 +420,69 @@ EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
/// \sa class Block
///
template<int CRows, int CCols>
-inline typename FixedBlockXpr<CRows,CCols>::Type bottomRightCorner(Index cRows, Index cCols)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type bottomRightCorner(Index cRows, Index 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).
template<int CRows, int CCols>
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomRightCorner(Index cRows, Index cCols) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 a dynamic-size expression of a bottom-left corner of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline BlockXpr bottomLeftCorner(Index cRows, Index cCols)
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename FixedBlockXpr<...,...>::Type
+#endif
+bottomLeftCorner(NRowsType cRows, NColsType cCols)
{
- return BlockXpr(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));
}
-/// This is the const version of bottomLeftCorner(Index, Index).
-EIGEN_DEVICE_FUNC
-inline const ConstBlockXpr bottomLeftCorner(Index cRows, Index cCols) const
+/// This is the const version of bottomLeftCorner(NRowsType, NColsType).
+template<typename NRowsType, typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename ConstFixedBlockXpr<internal::get_fixed_value<NRowsType>::value,internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename ConstFixedBlockXpr<...,...>::Type
+#endif
+bottomLeftCorner(NRowsType cRows, NColsType cCols) const
{
- return ConstBlockXpr(derived(), rows() - cRows, 0, cRows, cCols);
+ 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 *this.
+/// \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.
///
@@ -366,24 +491,24 @@ inline const ConstBlockXpr bottomLeftCorner(Index cRows, Index cCols) const
///
EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline typename FixedBlockXpr<CRows,CCols>::Type bottomLeftCorner()
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type bottomLeftCorner()
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - CRows, 0);
}
/// This is the const version of bottomLeftCorner<int, int>().
template<int CRows, int CCols>
-EIGEN_DEVICE_FUNC
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomLeftCorner() const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 *this.
+/// \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
@@ -403,45 +528,66 @@ EIGEN_DOC_BLOCK_ADDONS_NOT_INNER_PANEL
/// \sa class Block
///
template<int CRows, int CCols>
-inline typename FixedBlockXpr<CRows,CCols>::Type bottomLeftCorner(Index cRows, Index cCols)
+EIGEN_STRONG_INLINE
+typename FixedBlockXpr<CRows,CCols>::Type bottomLeftCorner(Index cRows, Index cCols)
{
return typename FixedBlockXpr<CRows,CCols>::Type(derived(), rows() - cRows, 0, cRows, cCols);
}
/// This is the const version of bottomLeftCorner<int, int>(Index, Index).
template<int CRows, int CCols>
-inline const typename ConstFixedBlockXpr<CRows,CCols>::Type bottomLeftCorner(Index cRows, Index cCols) const
+EIGEN_STRONG_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 *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline RowsBlockXpr topRows(Index n)
+template<typename NRowsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+#else
+typename NRowsBlockXpr<...>::Type
+#endif
+topRows(NRowsType n)
{
- return RowsBlockXpr(derived(), 0, 0, n, cols());
+ return typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+ (derived(), 0, 0, internal::get_runtime_value(n), cols());
}
-/// This is the const version of topRows(Index).
-EIGEN_DEVICE_FUNC
-inline ConstRowsBlockXpr topRows(Index n) const
+/// This is the const version of topRows(NRowsType).
+template<typename NRowsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+#else
+const typename ConstNRowsBlockXpr<...>::Type
+#endif
+topRows(NRowsType n) const
{
- return ConstRowsBlockXpr(derived(), 0, 0, n, cols());
+ 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 *this.
+/// \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
@@ -454,50 +600,69 @@ inline ConstRowsBlockXpr topRows(Index n) const
///
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major)
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename NRowsBlockXpr<N>::Type topRows(Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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>().
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename ConstNRowsBlockXpr<N>::Type topRows(Index n = N) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstNRowsBlockXpr<N>::Type topRows(Index n = N) const
{
return typename ConstNRowsBlockXpr<N>::Type(derived(), 0, 0, n, cols());
}
-/// \returns a block consisting of the bottom rows of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline RowsBlockXpr bottomRows(Index n)
+template<typename NRowsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+#else
+typename NRowsBlockXpr<...>::Type
+#endif
+bottomRows(NRowsType n)
{
- return RowsBlockXpr(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());
}
-/// This is the const version of bottomRows(Index).
-EIGEN_DEVICE_FUNC
-inline ConstRowsBlockXpr bottomRows(Index n) const
+/// This is the const version of bottomRows(NRowsType).
+template<typename NRowsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+#else
+const typename ConstNRowsBlockXpr<...>::Type
+#endif
+bottomRows(NRowsType n) const
{
- return ConstRowsBlockXpr(derived(), rows() - n, 0, n, cols());
+ 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 *this.
+/// \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
@@ -510,51 +675,70 @@ inline ConstRowsBlockXpr bottomRows(Index n) const
///
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major)
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename NRowsBlockXpr<N>::Type bottomRows(Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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>().
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename ConstNRowsBlockXpr<N>::Type bottomRows(Index n = N) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstNRowsBlockXpr<N>::Type bottomRows(Index n = N) const
{
return typename ConstNRowsBlockXpr<N>::Type(derived(), rows() - n, 0, n, cols());
}
-/// \returns a block consisting of a range of rows of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline RowsBlockXpr middleRows(Index startRow, Index n)
+template<typename NRowsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+#else
+typename NRowsBlockXpr<...>::Type
+#endif
+middleRows(Index startRow, NRowsType n)
{
- return RowsBlockXpr(derived(), startRow, 0, n, cols());
+ return typename NRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+ (derived(), startRow, 0, internal::get_runtime_value(n), cols());
}
-/// This is the const version of middleRows(Index,Index).
-EIGEN_DEVICE_FUNC
-inline ConstRowsBlockXpr middleRows(Index startRow, Index n) const
+/// This is the const version of middleRows(Index,NRowsType).
+template<typename NRowsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstNRowsBlockXpr<internal::get_fixed_value<NRowsType>::value>::Type
+#else
+const typename ConstNRowsBlockXpr<...>::Type
+#endif
+middleRows(Index startRow, NRowsType n) const
{
- return ConstRowsBlockXpr(derived(), startRow, 0, n, cols());
+ 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 *this.
+/// \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
@@ -568,50 +752,69 @@ inline ConstRowsBlockXpr middleRows(Index startRow, Index n) const
///
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major)
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \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)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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>().
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename ConstNRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = N) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstNRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = N) const
{
return typename ConstNRowsBlockXpr<N>::Type(derived(), startRow, 0, n, cols());
}
-/// \returns a block consisting of the left columns of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline ColsBlockXpr leftCols(Index n)
+template<typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename NColsBlockXpr<...>::Type
+#endif
+leftCols(NColsType n)
{
- return ColsBlockXpr(derived(), 0, 0, rows(), n);
+ return typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+ (derived(), 0, 0, rows(), internal::get_runtime_value(n));
}
-/// This is the const version of leftCols(Index).
-EIGEN_DEVICE_FUNC
-inline ConstColsBlockXpr leftCols(Index n) const
+/// This is the const version of leftCols(NColsType).
+template<typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstNColsBlockXpr<...>::Type
+#endif
+leftCols(NColsType n) const
{
- return ConstColsBlockXpr(derived(), 0, 0, rows(), n);
+ 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 *this.
+/// \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
@@ -624,50 +827,69 @@ inline ConstColsBlockXpr leftCols(Index n) const
///
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major)
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename NColsBlockXpr<N>::Type leftCols(Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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>().
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename ConstNColsBlockXpr<N>::Type leftCols(Index n = N) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstNColsBlockXpr<N>::Type leftCols(Index n = N) const
{
return typename ConstNColsBlockXpr<N>::Type(derived(), 0, 0, rows(), n);
}
-/// \returns a block consisting of the right columns of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline ColsBlockXpr rightCols(Index n)
+template<typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename NColsBlockXpr<...>::Type
+#endif
+rightCols(NColsType n)
{
- return ColsBlockXpr(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));
}
-/// This is the const version of rightCols(Index).
-EIGEN_DEVICE_FUNC
-inline ConstColsBlockXpr rightCols(Index n) const
+/// This is the const version of rightCols(NColsType).
+template<typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstNColsBlockXpr<...>::Type
+#endif
+rightCols(NColsType n) const
{
- return ConstColsBlockXpr(derived(), 0, cols() - n, rows(), n);
+ 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 *this.
+/// \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
@@ -680,51 +902,70 @@ inline ConstColsBlockXpr rightCols(Index n) const
///
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major)
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename NColsBlockXpr<N>::Type rightCols(Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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>().
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename ConstNColsBlockXpr<N>::Type rightCols(Index n = N) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstNColsBlockXpr<N>::Type rightCols(Index n = N) const
{
return typename ConstNColsBlockXpr<N>::Type(derived(), 0, cols() - n, rows(), n);
}
-/// \returns a block consisting of a range of columns of *this.
+/// \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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
-EIGEN_DEVICE_FUNC
-inline ColsBlockXpr middleCols(Index startCol, Index numCols)
+template<typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+#else
+typename NColsBlockXpr<...>::Type
+#endif
+middleCols(Index startCol, NColsType numCols)
{
- return ColsBlockXpr(derived(), 0, startCol, rows(), numCols);
+ return typename NColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+ (derived(), 0, startCol, rows(), internal::get_runtime_value(numCols));
}
-/// This is the const version of middleCols(Index,Index).
-EIGEN_DEVICE_FUNC
-inline ConstColsBlockXpr middleCols(Index startCol, Index numCols) const
+/// This is the const version of middleCols(Index,NColsType).
+template<typename NColsType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstNColsBlockXpr<internal::get_fixed_value<NColsType>::value>::Type
+#else
+const typename ConstNColsBlockXpr<...>::Type
+#endif
+middleCols(Index startCol, NColsType numCols) const
{
- return ConstColsBlockXpr(derived(), 0, startCol, rows(), numCols);
+ 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 *this.
+/// \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
@@ -738,26 +979,26 @@ inline ConstColsBlockXpr middleCols(Index startCol, Index numCols) const
///
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major)
///
-/// \sa class Block, block(Index,Index,Index,Index)
+/// \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)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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>().
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename ConstNColsBlockXpr<N>::Type middleCols(Index startCol, Index n = N) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstNColsBlockXpr<N>::Type middleCols(Index startCol, Index n = N) const
{
return typename ConstNColsBlockXpr<N>::Type(derived(), 0, startCol, rows(), n);
}
-/// \returns a fixed-size expression of a block in *this.
+/// \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.
@@ -768,29 +1009,35 @@ inline typename ConstNColsBlockXpr<N>::Type middleCols(Index startCol, Index n =
/// 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 class Block, block(Index,Index,Index,Index)
+/// \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)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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 in *this.
+/// \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
@@ -805,14 +1052,25 @@ inline const typename ConstFixedBlockXpr<NRows,NCols>::Type block(Index startRow
/// \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
+/// Output: \verbinclude MatrixBase_template_int_int_block_int_int_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 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 class Block, block(Index,Index,Index,Index)
+/// \sa block(Index,Index,NRowsType,NColsType), class Block
///
template<int NRows, int NCols>
-inline typename FixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol,
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol,
Index blockRows, Index blockCols)
{
return typename FixedBlockXpr<NRows,NCols>::Type(derived(), startRow, startCol, blockRows, blockCols);
@@ -820,13 +1078,14 @@ inline typename FixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index sta
/// 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,
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+const typename ConstFixedBlockXpr<NRows,NCols>::Type block(Index startRow, Index startCol,
Index blockRows, Index blockCols) const
{
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.
+/// \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
@@ -834,20 +1093,20 @@ inline const typename ConstFixedBlockXpr<NRows,NCols>::Type block(Index startRow
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(column-major)
/**
* \sa row(), class Block */
-EIGEN_DEVICE_FUNC
-inline ColXpr col(Index i)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+ColXpr col(Index i)
{
return ColXpr(derived(), i);
}
/// This is the const version of col().
-EIGEN_DEVICE_FUNC
-inline ConstColXpr col(Index i) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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.
+/// \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
@@ -855,109 +1114,166 @@ inline ConstColXpr col(Index i) const
EIGEN_DOC_BLOCK_ADDONS_INNER_PANEL_IF(row-major)
/**
* \sa col(), class Block */
-EIGEN_DEVICE_FUNC
-inline RowXpr row(Index i)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+RowXpr row(Index i)
{
return RowXpr(derived(), i);
}
/// This is the const version of row(). */
-EIGEN_DEVICE_FUNC
-inline ConstRowXpr row(Index i) const
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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.
+/// \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
///
-/// \note Even though the returned expression has dynamic size, in the case
+/// 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, segment(Index)
+/// \sa block(Index,Index,NRowsType,NColsType), fix<N>, fix<N>(int), class Block
///
-EIGEN_DEVICE_FUNC
-inline SegmentReturnType segment(Index start, Index n)
+template<typename NType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+#else
+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).
-EIGEN_DEVICE_FUNC
-inline ConstSegmentReturnType segment(Index start, Index n) const
+/// This is the const version of segment(Index,NType).
+template<typename NType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+#else
+const typename ConstFixedSegmentReturnType<...>::Type
+#endif
+segment(Index start, NType n) const
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
- return ConstSegmentReturnType(derived(), start, n);
+ return typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+ (derived(), start, internal::get_runtime_value(n));
}
-/// \returns a dynamic-size expression of the first coefficients of *this.
+/// \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
///
-/// \note Even though the returned expression has dynamic size, in the case
+/// 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)
///
-EIGEN_DEVICE_FUNC
-inline SegmentReturnType head(Index n)
+template<typename NType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+#else
+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).
-EIGEN_DEVICE_FUNC
-inline ConstSegmentReturnType head(Index n) const
+/// This is the const version of head(NType).
+template<typename NType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+#else
+const typename ConstFixedSegmentReturnType<...>::Type
+#endif
+head(NType n) const
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
- return ConstSegmentReturnType(derived(), 0, n);
+ return typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+ (derived(), 0, internal::get_runtime_value(n));
}
-/// \returns a dynamic-size expression of the last coefficients of *this.
+/// \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
///
-/// \note Even though the returned expression has dynamic size, in the case
+/// 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)
///
-EIGEN_DEVICE_FUNC
-inline SegmentReturnType tail(Index n)
+template<typename NType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+typename FixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+#else
+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).
-EIGEN_DEVICE_FUNC
-inline ConstSegmentReturnType tail(Index n) const
+template<typename NType>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+#ifndef EIGEN_PARSED_BY_DOXYGEN
+const typename ConstFixedSegmentReturnType<internal::get_fixed_value<NType>::value>::Type
+#else
+const typename ConstFixedSegmentReturnType<...>::Type
+#endif
+tail(NType n) const
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
- return ConstSegmentReturnType(derived(), this->size() - n, n);
+ 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
@@ -974,11 +1290,11 @@ inline ConstSegmentReturnType tail(Index n) const
/// Example: \include MatrixBase_template_int_segment.cpp
/// Output: \verbinclude MatrixBase_template_int_segment.out
///
-/// \sa class Block
+/// \sa segment(Index,NType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename FixedSegmentReturnType<N>::Type segment(Index start, Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_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);
@@ -986,14 +1302,14 @@ inline typename FixedSegmentReturnType<N>::Type segment(Index start, Index n = N
/// 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_DEVICE_FUNC EIGEN_STRONG_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.
+/// \returns a fixed-size expression of the first coefficients of \c *this.
///
/// \only_for_vectors
///
@@ -1006,11 +1322,11 @@ inline typename ConstFixedSegmentReturnType<N>::Type segment(Index start, Index
/// Example: \include MatrixBase_template_int_start.cpp
/// Output: \verbinclude MatrixBase_template_int_start.out
///
-/// \sa class Block
+/// \sa head(NType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename FixedSegmentReturnType<N>::Type head(Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedSegmentReturnType<N>::Type head(Index n = N)
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return typename FixedSegmentReturnType<N>::Type(derived(), 0, n);
@@ -1018,14 +1334,14 @@ inline typename FixedSegmentReturnType<N>::Type head(Index n = N)
/// 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_DEVICE_FUNC EIGEN_STRONG_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.
+/// \returns a fixed-size expression of the last coefficients of \c *this.
///
/// \only_for_vectors
///
@@ -1038,11 +1354,11 @@ inline typename ConstFixedSegmentReturnType<N>::Type head(Index n = N) const
/// Example: \include MatrixBase_template_int_end.cpp
/// Output: \verbinclude MatrixBase_template_int_end.out
///
-/// \sa class Block
+/// \sa tail(NType), class Block
///
template<int N>
-EIGEN_DEVICE_FUNC
-inline typename FixedSegmentReturnType<N>::Type tail(Index n = N)
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename FixedSegmentReturnType<N>::Type tail(Index n = N)
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return typename FixedSegmentReturnType<N>::Type(derived(), size() - n);
@@ -1050,9 +1366,77 @@ inline typename FixedSegmentReturnType<N>::Type tail(Index n = N)
/// 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_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename ConstFixedSegmentReturnType<N>::Type tail(Index n = N) const
{
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived)
return typename ConstFixedSegmentReturnType<N>::Type(derived(), size() - n);
}
+
+/// \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this
+/// is col-major (resp. row-major).
+///
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+InnerVectorReturnType innerVector(Index outer)
+{ return InnerVectorReturnType(derived(), outer); }
+
+/// \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this
+/// is col-major (resp. row-major). Read-only.
+///
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+const ConstInnerVectorReturnType innerVector(Index outer) const
+{ return ConstInnerVectorReturnType(derived(), outer); }
+
+/// \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this
+/// is col-major (resp. row-major).
+///
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+InnerVectorsReturnType
+innerVectors(Index outerStart, Index outerSize)
+{
+ return Block<Derived,Dynamic,Dynamic,true>(derived(),
+ IsRowMajor ? outerStart : 0, IsRowMajor ? 0 : outerStart,
+ IsRowMajor ? outerSize : rows(), IsRowMajor ? cols() : outerSize);
+
+}
+
+/// \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this
+/// is col-major (resp. row-major). Read-only.
+///
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+const ConstInnerVectorsReturnType
+innerVectors(Index outerStart, Index outerSize) const
+{
+ return Block<const Derived,Dynamic,Dynamic,true>(derived(),
+ IsRowMajor ? outerStart : 0, IsRowMajor ? 0 : outerStart,
+ IsRowMajor ? outerSize : rows(), IsRowMajor ? cols() : outerSize);
+
+}
+
+/** \returns the i-th subvector (column or vector) according to the \c Direction
+ * \sa subVectors()
+ */
+template<DirectionType Direction>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename internal::conditional<Direction==Vertical,ColXpr,RowXpr>::type
+subVector(Index i)
+{
+ return typename internal::conditional<Direction==Vertical,ColXpr,RowXpr>::type(derived(),i);
+}
+
+/** This is the const version of subVector(Index) */
+template<DirectionType Direction>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
+typename internal::conditional<Direction==Vertical,ConstColXpr,ConstRowXpr>::type
+subVector(Index i) const
+{
+ return typename internal::conditional<Direction==Vertical,ConstColXpr,ConstRowXpr>::type(derived(),i);
+}
+
+/** \returns the number of subvectors (rows or columns) in the direction \c Direction
+ * \sa subVector(Index)
+ */
+template<DirectionType Direction>
+EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE EIGEN_CONSTEXPR
+Index subVectors() const
+{ return (Direction==Vertical)?cols():rows(); }