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-rw-r--r--Eigen/src/Core/Block.h205
1 files changed, 178 insertions, 27 deletions
diff --git a/Eigen/src/Core/Block.h b/Eigen/src/Core/Block.h
index c8f4ac6b1..c026b174c 100644
--- a/Eigen/src/Core/Block.h
+++ b/Eigen/src/Core/Block.h
@@ -67,9 +67,11 @@ struct ei_traits<Block<MatrixType, BlockRows, BlockCols> >
: (BlockRows==Dynamic ? MatrixType::MaxRowsAtCompileTime : BlockRows),
MaxColsAtCompileTime = ColsAtCompileTime == 1 ? 1
: (BlockCols==Dynamic ? MatrixType::MaxColsAtCompileTime : BlockCols),
- Flags = (RowsAtCompileTime == Dynamic || ColsAtCompileTime == Dynamic
- ? (unsigned int)MatrixType::Flags
- : (unsigned int)MatrixType::Flags &~ LargeBit) & ~VectorizableBit,
+ FlagsLargeBit = ((RowsAtCompileTime != Dynamic && MatrixType::RowsAtCompileTime == Dynamic)
+ || (ColsAtCompileTime != Dynamic && MatrixType::ColsAtCompileTime == Dynamic))
+ ? ~LargeBit
+ : ~(unsigned int)0,
+ Flags = MatrixType::Flags & FlagsLargeBit & ~VectorizableBit,
CoeffReadCost = MatrixType::CoeffReadCost
};
};
@@ -236,8 +238,7 @@ const Block<Derived> MatrixBase<Derived>
* \sa class Block, block(int,int)
*/
template<typename Derived>
-Block<Derived> MatrixBase<Derived>
- ::start(int size)
+Block<Derived> MatrixBase<Derived>::start(int size)
{
ei_assert(IsVectorAtCompileTime);
return Block<Derived>(derived(), 0, 0,
@@ -247,8 +248,7 @@ Block<Derived> MatrixBase<Derived>
/** This is the const version of start(int).*/
template<typename Derived>
-const Block<Derived> MatrixBase<Derived>
- ::start(int size) const
+const Block<Derived> MatrixBase<Derived>::start(int size) const
{
ei_assert(IsVectorAtCompileTime);
return Block<Derived>(derived(), 0, 0,
@@ -272,8 +272,7 @@ const Block<Derived> MatrixBase<Derived>
* \sa class Block, block(int,int)
*/
template<typename Derived>
-Block<Derived> MatrixBase<Derived>
- ::end(int size)
+Block<Derived> MatrixBase<Derived>::end(int size)
{
ei_assert(IsVectorAtCompileTime);
return Block<Derived>(derived(),
@@ -285,8 +284,7 @@ Block<Derived> MatrixBase<Derived>
/** This is the const version of end(int).*/
template<typename Derived>
-const Block<Derived> MatrixBase<Derived>
- ::end(int size) const
+const Block<Derived> MatrixBase<Derived>::end(int size) const
{
ei_assert(IsVectorAtCompileTime);
return Block<Derived>(derived(),
@@ -296,6 +294,80 @@ const Block<Derived> MatrixBase<Derived>
ColsAtCompileTime == 1 ? 1 : size);
}
+/** \returns a fixed-size expression of the first coefficients of *this.
+ *
+ * \only_for_vectors
+ *
+ * The template parameter \a Size is the number of coefficients in the block
+ *
+ * Example: \include MatrixBase_template_int_start.cpp
+ * Output: \verbinclude MatrixBase_template_int_start.out
+ *
+ * \sa class Block
+ */
+template<typename Derived>
+template<int Size>
+Block<Derived, ei_traits<Derived>::RowsAtCompileTime == 1 ? 1 : Size,
+ ei_traits<Derived>::ColsAtCompileTime == 1 ? 1 : Size>
+MatrixBase<Derived>::start()
+{
+ ei_assert(IsVectorAtCompileTime);
+ return Block<Derived, RowsAtCompileTime == 1 ? 1 : Size,
+ ColsAtCompileTime == 1 ? 1 : Size>(derived(), 0, 0);
+}
+
+/** This is the const version of start<int>().*/
+template<typename Derived>
+template<int Size>
+const Block<Derived, ei_traits<Derived>::RowsAtCompileTime == 1 ? 1 : Size,
+ ei_traits<Derived>::ColsAtCompileTime == 1 ? 1 : Size>
+MatrixBase<Derived>::start() const
+{
+ ei_assert(IsVectorAtCompileTime);
+ return Block<Derived, RowsAtCompileTime == 1 ? 1 : Size,
+ ColsAtCompileTime == 1 ? 1 : Size>(derived(), 0, 0);
+}
+
+/** \returns a fixed-size expression of the last coefficients of *this.
+ *
+ * \only_for_vectors
+ *
+ * The template parameter \a Size is the number of coefficients in the block
+ *
+ * Example: \include MatrixBase_template_int_end.cpp
+ * Output: \verbinclude MatrixBase_template_int_end.out
+ *
+ * \sa class Block
+ */
+template<typename Derived>
+template<int Size>
+Block<Derived, ei_traits<Derived>::RowsAtCompileTime == 1 ? 1 : Size,
+ ei_traits<Derived>::ColsAtCompileTime == 1 ? 1 : Size>
+MatrixBase<Derived>::end()
+{
+ ei_assert(IsVectorAtCompileTime);
+ return Block<Derived, RowsAtCompileTime == 1 ? 1 : Size,
+ ColsAtCompileTime == 1 ? 1 : Size>
+ (derived(),
+ RowsAtCompileTime == 1 ? 0 : rows() - Size,
+ ColsAtCompileTime == 1 ? 0 : cols() - Size);
+}
+
+/** This is the const version of end<int>.*/
+template<typename Derived>
+template<int Size>
+const Block<Derived, ei_traits<Derived>::RowsAtCompileTime == 1 ? 1 : Size,
+ ei_traits<Derived>::ColsAtCompileTime == 1 ? 1 : Size>
+MatrixBase<Derived>::end() const
+{
+ ei_assert(IsVectorAtCompileTime);
+ return Block<Derived, RowsAtCompileTime == 1 ? 1 : Size,
+ ColsAtCompileTime == 1 ? 1 : Size>
+ (derived(),
+ RowsAtCompileTime == 1 ? 0 : rows() - Size,
+ ColsAtCompileTime == 1 ? 0 : cols() - Size);
+}
+
/** \returns a dynamic-size expression of a corner of *this.
*
* \param type the type of corner. Can be \a Eigen::TopLeft, \a Eigen::TopRight,
@@ -316,14 +388,23 @@ template<typename Derived>
Block<Derived> MatrixBase<Derived>
::corner(CornerType type, int cRows, int cCols)
{
- if(type == TopLeft)
- return Block<Derived>(derived(), 0, 0, cRows, cCols);
- else if(type == TopRight)
- return Block<Derived>(derived(), 0, cols() - cCols, cRows, cCols);
- else if(type == BottomLeft)
- return Block<Derived>(derived(), rows() - cRows, 0, cRows, cCols);
- else
- return Block<Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols);
+ switch(type)
+ {
+ case TopLeft:
+ return Block<Derived>(derived(), 0, 0, cRows, cCols);
+ break;
+ case TopRight:
+ return Block<Derived>(derived(), 0, cols() - cCols, cRows, cCols);
+ break;
+ case BottomLeft:
+ return Block<Derived>(derived(), rows() - cRows, 0, cRows, cCols);
+ break;
+ case BottomRight:
+ return Block<Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols);
+ break;
+ default:
+ ei_assert(false && "Bad corner type.");
+ }
}
/** This is the const version of corner(CornerType, int, int).*/
@@ -331,14 +412,84 @@ template<typename Derived>
const Block<Derived> MatrixBase<Derived>
::corner(CornerType type, int cRows, int cCols) const
{
- if(type == TopLeft)
- return Block<Derived>(derived(), 0, 0, cRows, cCols);
- else if(type == TopRight)
- return Block<Derived>(derived(), 0, cols() - cCols, cRows, cCols);
- else if(type == BottomLeft)
- return Block<Derived>(derived(), rows() - cRows, 0, cRows, cCols);
- else
- return Block<Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols);
+ switch(type)
+ {
+ case TopLeft:
+ return Block<Derived>(derived(), 0, 0, cRows, cCols);
+ break;
+ case TopRight:
+ return Block<Derived>(derived(), 0, cols() - cCols, cRows, cCols);
+ break;
+ case BottomLeft:
+ return Block<Derived>(derived(), rows() - cRows, 0, cRows, cCols);
+ break;
+ case BottomRight:
+ return Block<Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols);
+ break;
+ default:
+ ei_assert(false && "Bad corner type.");
+ }
+}
+
+/** \returns a fixed-size expression of a corner of *this.
+ *
+ * \param type the type of corner. Can be \a Eigen::TopLeft, \a Eigen::TopRight,
+ * \a Eigen::BottomLeft, \a Eigen::BottomRight.
+ *
+ * The template parameters CRows and CCols arethe number of rows and columns in the corner.
+ *
+ * Example: \include MatrixBase_template_int_int_corner_enum.cpp
+ * Output: \verbinclude MatrixBase_template_int_int_corner_enum.out
+ *
+ * \sa class Block, block(int,int,int,int)
+ */
+template<typename Derived>
+template<int CRows, int CCols>
+Block<Derived, CRows, CCols> MatrixBase<Derived>
+ ::corner(CornerType type)
+{
+ switch(type)
+ {
+ case TopLeft:
+ return Block<Derived, CRows, CCols>(derived(), 0, 0);
+ break;
+ case TopRight:
+ return Block<Derived, CRows, CCols>(derived(), 0, cols() - CCols);
+ break;
+ case BottomLeft:
+ return Block<Derived, CRows, CCols>(derived(), rows() - CRows, 0);
+ break;
+ case BottomRight:
+ return Block<Derived, CRows, CCols>(derived(), rows() - CRows, cols() - CCols);
+ break;
+ default:
+ ei_assert(false && "Bad corner type.");
+ }
+}
+
+/** This is the const version of corner<int, int>(CornerType).*/
+template<typename Derived>
+template<int CRows, int CCols>
+const Block<Derived, CRows, CCols> MatrixBase<Derived>
+ ::corner(CornerType type) const
+{
+ switch(type)
+ {
+ case TopLeft:
+ return Block<Derived, CRows, CCols>(derived(), 0, 0);
+ break;
+ case TopRight:
+ return Block<Derived, CRows, CCols>(derived(), 0, cols() - CCols);
+ break;
+ case BottomLeft:
+ return Block<Derived, CRows, CCols>(derived(), rows() - CRows, 0);
+ break;
+ case BottomRight:
+ return Block<Derived, CRows, CCols>(derived(), rows() - CRows, cols() - CCols);
+ break;
+ default:
+ ei_assert(false && "Bad corner type.");
+ }
}
/** \returns a fixed-size expression of a block in *this.
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 16:36:27 +0000