devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

* Fix a couple of issues related to the recent cache friendly products

Browse Source 
* Improve the efficiency of matrix*vector in unaligned cases
* Trivial fixes in the destructors of MatrixStorage
* Removed the matrixNorm in test/product.cpp (twice faster and
  that assumed the matrix product was ok while checking that !!)
This commit is contained in:
Gael Guennebaud
2008-07-19 00:09:01 +00:00
parent 62ec1dd616
commit 22a816ade8
9 changed files with 85 additions and 92 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
Eigen/src/Core/Map.h
View File

@@ -66,6 +66,8 @@ template<typename MatrixType, int Alignment> class Map
inline int rows() const { return m_rows.value(); }
inline int cols() const { return m_cols.value(); }
inline int stride() const { return this->innerSize(); }
inline const Scalar& coeff(int row, int col) const
{
if(Flags & RowMajorBit)
@@ -156,40 +158,6 @@ template<typename MatrixType, int Alignment> class Map
const ei_int_if_dynamic<ColsAtCompileTime> m_cols;
};
/** Constructor copying an existing array of data. Only useful for dynamic-size matrices:
* for fixed-size matrices, it is redundant to pass the \a rows and \a cols parameters.
* \param data The array of data to copy
* \param rows The number of rows of the matrix to construct
* \param cols The number of columns of the matrix to construct
*
* \sa Matrix(const Scalar *), Matrix::map(const Scalar *, int, int)
*/
template<typename _Scalar, int _Rows, int _Cols, int _MaxRows, int _MaxCols, unsigned int _Flags>
inline Matrix<_Scalar, _Rows, _Cols, _MaxRows, _MaxCols, _Flags>
::Matrix(const Scalar *data, int rows, int cols)
: m_storage(rows*cols, rows, cols)
{
*this = Map<Matrix>(data, rows, cols);
}
/** Constructor copying an existing array of data. Only useful for dynamic-size vectors:
* for fixed-size vectors, it is redundant to pass the \a size parameter.
*
* \only_for_vectors
*
* \param data The array of data to copy
* \param size The size of the vector to construct
*
* \sa Matrix(const Scalar *), Matrix::map(const Scalar *, int)
*/
template<typename _Scalar, int _Rows, int _Cols, int _MaxRows, int _MaxCols, unsigned int _Flags>
inline Matrix<_Scalar, _Rows, _Cols, _MaxRows, _MaxCols, _Flags>
::Matrix(const Scalar *data, int size)
: m_storage(size, RowsAtCompileTime == 1 ? 1 : size, ColsAtCompileTime == 1 ? 1 : size)
{
*this = Map<Matrix>(data, size);
}
/** Constructor copying an existing array of data.
* Only for fixed-size matrices and vectors.
* \param data The array of data to copy