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fix assigment from uncompressed

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Gael Guennebaud 2011-11-30 21:55:54 +01:00
parent 6b8d6887ac
commit 49d652c600
1 changed files with 48 additions and 40 deletions
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88
Eigen/src/SparseCore/SparseMatrixBase.h
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@ -180,16 +180,7 @@ template<typename Derived> class SparseMatrixBase : public EigenBase<Derived>
Derived& markAsRValue() { m_isRValue = true; return derived(); }
SparseMatrixBase() : m_isRValue(false) { /* TODO check flags */ }
// inline Derived& operator=(const Derived& other)
// {
// // std::cout << "Derived& operator=(const Derived& other)\n";
// // if (other.isRValue())
// // derived().swap(other.const_cast_derived());
// // else
// this->operator=<Derived>(other);
// return derived();
// }
template<typename OtherDerived>
Derived& operator=(const ReturnByValue<OtherDerived>& other)
@ -199,6 +190,52 @@ template<typename Derived> class SparseMatrixBase : public EigenBase<Derived>
}
template<typename OtherDerived>
inline Derived& operator=(const SparseMatrixBase<OtherDerived>& other)
{
return assign(other.derived());
}
inline Derived& operator=(const Derived& other)
{
// if (other.isRValue())
// derived().swap(other.const_cast_derived());
// else
return assign(other.derived());
}
protected:
template<typename OtherDerived>
inline Derived& assign(const OtherDerived& other)
{
const bool transpose = (Flags & RowMajorBit) != (OtherDerived::Flags & RowMajorBit);
const Index outerSize = (int(OtherDerived::Flags) & RowMajorBit) ? other.rows() : other.cols();
if ((!transpose) && other.isRValue())
{
// eval without temporary
derived().resize(other.rows(), other.cols());
derived().setZero();
derived().reserve((std::max)(this->rows(),this->cols())*2);
for (Index j=0; j<outerSize; ++j)
{
derived().startVec(j);
for (typename OtherDerived::InnerIterator it(other, j); it; ++it)
{
Scalar v = it.value();
if (v!=Scalar(0))
derived().insertBackByOuterInner(j,it.index()) = v;
}
}
derived().finalize();
}
else
{
assignGeneric(other);
}
return derived();
}
template<typename OtherDerived>
inline void assignGeneric(const OtherDerived& other)
{
@ -230,36 +267,7 @@ template<typename Derived> class SparseMatrixBase : public EigenBase<Derived>
derived() = temp.markAsRValue();
}
template<typename OtherDerived>
inline Derived& operator=(const SparseMatrixBase<OtherDerived>& other)
{
const bool transpose = (Flags & RowMajorBit) != (OtherDerived::Flags & RowMajorBit);
const Index outerSize = (int(OtherDerived::Flags) & RowMajorBit) ? other.rows() : other.cols();
if ((!transpose) && other.isRValue())
{
// eval without temporary
derived().resize(other.rows(), other.cols());
derived().setZero();
derived().reserve((std::max)(this->rows(),this->cols())*2);
for (Index j=0; j<outerSize; ++j)
{
derived().startVec(j);
for (typename OtherDerived::InnerIterator it(other.derived(), j); it; ++it)
{
Scalar v = it.value();
if (v!=Scalar(0))
derived().insertBackByOuterInner(j,it.index()) = v;
}
}
derived().finalize();
}
else
{
assignGeneric(other.derived());
}
return derived();
}
public:
template<typename Lhs, typename Rhs>
inline Derived& operator=(const SparseSparseProduct<Lhs,Rhs>& product);