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makes SparseView a true sparse expression and fix use of nesting types

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This commit is contained in:
Gael Guennebaud 2010-06-24 22:48:48 +02:00
parent f3b875e434
commit 99e4afd43e
1 changed files with 10 additions and 5 deletions
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15
Eigen/src/Sparse/SparseView.h
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@ -27,11 +27,16 @@
#define EIGEN_SPARSEVIEW_H #define EIGEN_SPARSEVIEW_H
template<typename MatrixType> template<typename MatrixType>
struct ei_traits<SparseView<MatrixType> > : ei_traits<MatrixType> {}; struct ei_traits<SparseView<MatrixType> > : ei_traits<MatrixType>
{
typedef int Index;
typedef Sparse StorageKind;
};
template<typename MatrixType> template<typename MatrixType>
class SparseView : public SparseMatrixBase<SparseView<MatrixType> > class SparseView : public SparseMatrixBase<SparseView<MatrixType> >
{ {
typedef typename MatrixType::Nested MatrixTypeNested;
public: public:
EIGEN_SPARSE_PUBLIC_INTERFACE(SparseView) EIGEN_SPARSE_PUBLIC_INTERFACE(SparseView)
@ -47,18 +52,18 @@ public:
inline Index outerSize() const { return m_matrix.outerSize(); } inline Index outerSize() const { return m_matrix.outerSize(); }
protected: protected:
const typename MatrixType::Nested m_matrix; const MatrixTypeNested m_matrix;
Scalar m_reference; Scalar m_reference;
typename NumTraits<Scalar>::Real m_epsilon; typename NumTraits<Scalar>::Real m_epsilon;
}; };
template<typename MatrixType> template<typename MatrixType>
class SparseView<MatrixType>::InnerIterator : public MatrixType::InnerIterator class SparseView<MatrixType>::InnerIterator : public MatrixTypeNested::InnerIterator
{ {
public: public:
typedef typename MatrixType::InnerIterator IterBase; typedef typename MatrixTypeNested::InnerIterator IterBase;
InnerIterator(const SparseView& view, Index outer) : InnerIterator(const SparseView& view, Index outer) :
DenseBase<MatrixType>::InnerIterator(view.m_matrix, outer), m_view(view) IterBase(view.m_matrix, outer), m_view(view)
{ {
incrementToNonZero(); incrementToNonZero();
} }