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* add a HouseholderSequence class (not good enough yet for Triadiagonalization and HessenbergDecomposition)

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* rework a bit AnyMatrixBase, and mobe it to a separate file
This commit is contained in:
Gael Guennebaud
2009-09-16 14:35:42 +02:00
parent 77f858f6ab
commit 49dd5d7847
12 changed files with 339 additions and 103 deletions
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12
Eigen/src/Core/TriangularMatrix.h
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@@ -91,9 +91,9 @@ template<typename Derived> class TriangularBase : public AnyMatrixBase<Derived>
#endif // not EIGEN_PARSED_BY_DOXYGEN
template<typename DenseDerived>
void evalToDense(MatrixBase<DenseDerived> &other) const;
void evalTo(MatrixBase<DenseDerived> &other) const;
template<typename DenseDerived>
void evalToDenseLazy(MatrixBase<DenseDerived> &other) const;
void evalToLazy(MatrixBase<DenseDerived> &other) const;
protected:
@@ -546,23 +546,23 @@ void TriangularView<MatrixType, Mode>::lazyAssign(const TriangularBase<OtherDeri
* If the matrix is triangular, the opposite part is set to zero. */
template<typename Derived>
template<typename DenseDerived>
void TriangularBase<Derived>::evalToDense(MatrixBase<DenseDerived> &other) const
void TriangularBase<Derived>::evalTo(MatrixBase<DenseDerived> &other) const
{
if(ei_traits<Derived>::Flags & EvalBeforeAssigningBit)
{
typename Derived::PlainMatrixType other_evaluated(rows(), cols());
evalToDenseLazy(other_evaluated);
evalToLazy(other_evaluated);
other.derived().swap(other_evaluated);
}
else
evalToDenseLazy(other.derived());
evalToLazy(other.derived());
}
/** Assigns a triangular or selfadjoint matrix to a dense matrix.
* If the matrix is triangular, the opposite part is set to zero. */
template<typename Derived>
template<typename DenseDerived>
void TriangularBase<Derived>::evalToDenseLazy(MatrixBase<DenseDerived> &other) const
void TriangularBase<Derived>::evalToLazy(MatrixBase<DenseDerived> &other) const
{
const bool unroll = DenseDerived::SizeAtCompileTime * Derived::CoeffReadCost / 2
<= EIGEN_UNROLLING_LIMIT;