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Add a default ctor to evaluator<SparseVector>.

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Needed for evaluator<Solve>.
This commit is contained in:
Gael Guennebaud 2016-11-06 15:20:00 +01:00
parent 4d226ab5b5
commit fc7180cda8
1 changed files with 8 additions and 5 deletions
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13
Eigen/src/SparseCore/SparseVector.h
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@ -411,6 +411,7 @@ struct evaluator<SparseVector<_Scalar,_Options,_Index> >
: evaluator_base<SparseVector<_Scalar,_Options,_Index> >
{
typedef SparseVector<_Scalar,_Options,_Index> SparseVectorType;
typedef evaluator_base<SparseVectorType> Base;
typedef typename SparseVectorType::InnerIterator InnerIterator;
typedef typename SparseVectorType::ReverseInnerIterator ReverseInnerIterator;
@ -418,20 +419,22 @@ struct evaluator<SparseVector<_Scalar,_Options,_Index> >
CoeffReadCost = NumTraits<_Scalar>::ReadCost,
Flags = SparseVectorType::Flags
};
evaluator() : Base() {}
explicit evaluator(const SparseVectorType &mat) : m_matrix(mat)
explicit evaluator(const SparseVectorType &mat) : m_matrix(&mat)
{
EIGEN_INTERNAL_CHECK_COST_VALUE(CoeffReadCost);
}
inline Index nonZerosEstimate() const {
return m_matrix.nonZeros();
return m_matrix->nonZeros();
}
operator SparseVectorType&() { return m_matrix.const_cast_derived(); }
operator const SparseVectorType&() const { return m_matrix; }
operator SparseVectorType&() { return m_matrix->const_cast_derived(); }
operator const SparseVectorType&() const { return *m_matrix; }
const SparseVectorType &m_matrix;
const SparseVectorType *m_matrix;
};
template< typename Dest, typename Src>