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fix assignment to a set of sparse inner vectors

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Gael Guennebaud 2011-10-10 16:16:37 +02:00
parent 4e7f38ffc7
commit ae9c96a32d
2 changed files with 49 additions and 7 deletions
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50
Eigen/src/Sparse/SparseBlock.h
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@ -243,7 +243,7 @@ class SparseInnerVectorSet<SparseMatrix<_Scalar, _Options, _Index>, Size>
{ {
typedef typename internal::remove_all<typename MatrixType::Nested>::type _NestedMatrixType; typedef typename internal::remove_all<typename MatrixType::Nested>::type _NestedMatrixType;
_NestedMatrixType& matrix = const_cast<_NestedMatrixType&>(m_matrix);; _NestedMatrixType& matrix = const_cast<_NestedMatrixType&>(m_matrix);;
// This assignement is slow if this vector set not empty // This assignement is slow if this vector set is not empty
// and/or it is not at the end of the nonzeros of the underlying matrix. // and/or it is not at the end of the nonzeros of the underlying matrix.
// 1 - eval to a temporary to avoid transposition and/or aliasing issues // 1 - eval to a temporary to avoid transposition and/or aliasing issues
@ -252,7 +252,7 @@ class SparseInnerVectorSet<SparseMatrix<_Scalar, _Options, _Index>, Size>
// 2 - let's check whether there is enough allocated memory // 2 - let's check whether there is enough allocated memory
Index nnz = tmp.nonZeros(); Index nnz = tmp.nonZeros();
Index nnz_previous = nonZeros(); Index nnz_previous = nonZeros();
Index free_size = matrix.data().allocatedSize() - nnz_previous; Index free_size = matrix.data().allocatedSize() + nnz_previous;
std::size_t nnz_head = m_outerStart==0 ? 0 : matrix._outerIndexPtr()[m_outerStart]; std::size_t nnz_head = m_outerStart==0 ? 0 : matrix._outerIndexPtr()[m_outerStart];
std::size_t tail = m_matrix._outerIndexPtr()[m_outerStart+m_outerSize.value()]; std::size_t tail = m_matrix._outerIndexPtr()[m_outerStart+m_outerSize.value()];
std::size_t nnz_tail = matrix.nonZeros() - tail; std::size_t nnz_tail = matrix.nonZeros() - tail;
@ -298,7 +298,7 @@ class SparseInnerVectorSet<SparseMatrix<_Scalar, _Options, _Index>, Size>
// update outer index pointers // update outer index pointers
Index p = nnz_head; Index p = nnz_head;
for(Index k=1; k<m_outerSize.value(); ++k) for(Index k=0; k<m_outerSize.value(); ++k)
{ {
matrix._outerIndexPtr()[m_outerStart+k] = p; matrix._outerIndexPtr()[m_outerStart+k] = p;
p += tmp.innerVector(k).nonZeros(); p += tmp.innerVector(k).nonZeros();
@ -414,7 +414,7 @@ const SparseInnerVectorSet<Derived,1> SparseMatrixBase<Derived>::innerVector(Ind
//---------- //----------
/** \returns the i-th row of the matrix \c *this. For row-major matrix only. */ /** \deprecated see middleRows */
template<typename Derived> template<typename Derived>
SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subrows(Index start, Index size) SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subrows(Index start, Index size)
{ {
@ -422,10 +422,44 @@ SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subrows(Index s
return innerVectors(start, size); return innerVectors(start, size);
} }
/** \deprecated see middleRows */
template<typename Derived>
const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subrows(Index start, Index size) const
{
EIGEN_STATIC_ASSERT(IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVectors(start, size);
}
/** \deprecated see middleCols */
template<typename Derived>
SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subcols(Index start, Index size)
{
EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES);
return innerVectors(start, size);
}
/** \deprecated see middleCols */
template<typename Derived>
const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subcols(Index start, Index size) const
{
EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES);
return innerVectors(start, size);
}
/** \returns the i-th row of the matrix \c *this. For row-major matrix only. */
template<typename Derived>
SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::middleRows(Index start, Index size)
{
EIGEN_STATIC_ASSERT(IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVectors(start, size);
}
/** \returns the i-th row of the matrix \c *this. For row-major matrix only. /** \returns the i-th row of the matrix \c *this. For row-major matrix only.
* (read-only version) */ * (read-only version) */
template<typename Derived> template<typename Derived>
const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subrows(Index start, Index size) const const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::middleRows(Index start, Index size) const
{ {
EIGEN_STATIC_ASSERT(IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES); EIGEN_STATIC_ASSERT(IsRowMajor,THIS_METHOD_IS_ONLY_FOR_ROW_MAJOR_MATRICES);
return innerVectors(start, size); return innerVectors(start, size);
@ -433,7 +467,7 @@ const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subrows(I
/** \returns the i-th column of the matrix \c *this. For column-major matrix only. */ /** \returns the i-th column of the matrix \c *this. For column-major matrix only. */
template<typename Derived> template<typename Derived>
SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subcols(Index start, Index size) SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::middleCols(Index start, Index size)
{ {
EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES); EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES);
return innerVectors(start, size); return innerVectors(start, size);
@ -442,12 +476,14 @@ SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subcols(Index s
/** \returns the i-th column of the matrix \c *this. For column-major matrix only. /** \returns the i-th column of the matrix \c *this. For column-major matrix only.
* (read-only version) */ * (read-only version) */
template<typename Derived> template<typename Derived>
const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::subcols(Index start, Index size) const const SparseInnerVectorSet<Derived,Dynamic> SparseMatrixBase<Derived>::middleCols(Index start, Index size) const
{ {
EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES); EIGEN_STATIC_ASSERT(!IsRowMajor,THIS_METHOD_IS_ONLY_FOR_COLUMN_MAJOR_MATRICES);
return innerVectors(start, size); return innerVectors(start, size);
} }
/** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this /** \returns the \a outer -th column (resp. row) of the matrix \c *this if \c *this
* is col-major (resp. row-major). * is col-major (resp. row-major).
*/ */

6
Eigen/src/Sparse/SparseMatrixBase.h
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@ -442,6 +442,12 @@ template<typename Derived> class SparseMatrixBase : public EigenBase<Derived>
const SparseInnerVectorSet<Derived,Dynamic> subrows(Index start, Index size) const; const SparseInnerVectorSet<Derived,Dynamic> subrows(Index start, Index size) const;
SparseInnerVectorSet<Derived,Dynamic> subcols(Index start, Index size); SparseInnerVectorSet<Derived,Dynamic> subcols(Index start, Index size);
const SparseInnerVectorSet<Derived,Dynamic> subcols(Index start, Index size) const; const SparseInnerVectorSet<Derived,Dynamic> subcols(Index start, Index size) const;
SparseInnerVectorSet<Derived,Dynamic> middleRows(Index start, Index size);
const SparseInnerVectorSet<Derived,Dynamic> middleRows(Index start, Index size) const;
SparseInnerVectorSet<Derived,Dynamic> middleCols(Index start, Index size);
const SparseInnerVectorSet<Derived,Dynamic> middleCols(Index start, Index size) const;
SparseInnerVectorSet<Derived,Dynamic> innerVectors(Index outerStart, Index outerSize); SparseInnerVectorSet<Derived,Dynamic> innerVectors(Index outerStart, Index outerSize);
const SparseInnerVectorSet<Derived,Dynamic> innerVectors(Index outerStart, Index outerSize) const; const SparseInnerVectorSet<Derived,Dynamic> innerVectors(Index outerStart, Index outerSize) const;