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Add support for sparse * dense and dense * sparse matrix/vector products

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This commit is contained in:
Gael Guennebaud
2009-01-14 17:41:55 +00:00
parent c4c70669d1
commit 0b606dcccd
8 changed files with 140 additions and 42 deletions
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12
Eigen/src/Sparse/SparseMatrixBase.h
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@@ -213,7 +213,7 @@ template<typename Derived> class SparseMatrixBase
}
template<typename Lhs, typename Rhs>
inline Derived& operator=(const SparseProduct<Lhs,Rhs>& product);
inline Derived& operator=(const SparseProduct<Lhs,Rhs,SparseTimeSparseProduct>& product);
friend std::ostream & operator << (std::ostream & s, const SparseMatrixBase& m)
{
@@ -291,6 +291,16 @@ template<typename Derived> class SparseMatrixBase
template<typename OtherDerived>
const typename SparseProductReturnType<Derived,OtherDerived>::Type
operator*(const SparseMatrixBase<OtherDerived> &other) const;
// dense * sparse (return a dense object)
template<typename OtherDerived> friend
const typename SparseProductReturnType<OtherDerived,Derived>::Type
operator*(const MatrixBase<OtherDerived>& lhs, const Derived& rhs)
{ return typename SparseProductReturnType<OtherDerived,Derived>::Type(lhs.derived(),rhs); }
template<typename OtherDerived>
const typename SparseProductReturnType<Derived,OtherDerived>::Type
operator*(const MatrixBase<OtherDerived> &other) const;
template<typename OtherDerived>
Derived& operator*=(const SparseMatrixBase<OtherDerived>& other);