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add missing specialization for vector * selfadjoint

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This commit is contained in:
Gael Guennebaud 2010-08-19 14:05:21 +02:00
parent 6264755dd3
commit 5354ffbb4f
2 changed files with 45 additions and 19 deletions
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42
Eigen/src/Core/products/SelfadjointMatrixVector.h
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@ -201,5 +201,47 @@ struct SelfadjointProductMatrix<Lhs,LhsMode,false,Rhs,0,true>
} }
}; };
template<typename Lhs, typename Rhs, int RhsMode>
struct ei_traits<SelfadjointProductMatrix<Lhs,0,true,Rhs,RhsMode,false> >
: ei_traits<ProductBase<SelfadjointProductMatrix<Lhs,0,true,Rhs,RhsMode,false>, Lhs, Rhs> >
{};
template<typename Lhs, typename Rhs, int RhsMode>
struct SelfadjointProductMatrix<Lhs,0,true,Rhs,RhsMode,false>
: public ProductBase<SelfadjointProductMatrix<Lhs,0,true,Rhs,RhsMode,false>, Lhs, Rhs >
{
EIGEN_PRODUCT_PUBLIC_INTERFACE(SelfadjointProductMatrix)
enum {
RhsUpLo = RhsMode&(Upper|Lower)
};
SelfadjointProductMatrix(const Lhs& lhs, const Rhs& rhs) : Base(lhs,rhs) {}
template<typename Dest> void scaleAndAddTo(Dest& dst, Scalar alpha) const
{
ei_assert(dst.rows()==m_lhs.rows() && dst.cols()==m_rhs.cols());
const ActualLhsType lhs = LhsBlasTraits::extract(m_lhs);
const ActualRhsType rhs = RhsBlasTraits::extract(m_rhs);
Scalar actualAlpha = alpha * LhsBlasTraits::extractScalarFactor(m_lhs)
* RhsBlasTraits::extractScalarFactor(m_rhs);
ei_assert(dst.innerStride()==1 && "not implemented yet");
// transpose the product
ei_product_selfadjoint_vector<Scalar, Index, (ei_traits<_ActualRhsType>::Flags&RowMajorBit) ? ColMajor : RowMajor, int(RhsUpLo)==Upper ? Lower : Upper,
bool(RhsBlasTraits::NeedToConjugate), bool(LhsBlasTraits::NeedToConjugate)>
(
rhs.rows(), // size
&rhs.coeff(0,0), rhs.outerStride(), // lhs info
&lhs.coeff(0), lhs.innerStride(), // rhs info
&dst.coeffRef(0), // result info
actualAlpha // scale factor
);
}
};
#endif // EIGEN_SELFADJOINT_MATRIX_VECTOR_H #endif // EIGEN_SELFADJOINT_MATRIX_VECTOR_H

22
test/product_symm.cpp
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@ -24,23 +24,6 @@
#include "main.h" #include "main.h"
template<int OtherSize> struct symm_extra {
template<typename M1, typename M2, typename Scalar>
static void run(M1& m1, M1& m2, M2& rhs2, M2& rhs22, M2& rhs23, Scalar s1, Scalar s2)
{
m2 = m1.template triangularView<Lower>();
VERIFY_IS_APPROX(rhs22 = (rhs2) * (m2).template selfadjointView<Lower>(),
rhs23 = (rhs2) * (m1));
VERIFY_IS_APPROX(rhs22 = (s2*rhs2) * (s1*m2).template selfadjointView<Lower>(),
rhs23 = (s2*rhs2) * (s1*m1));
}
};
template<> struct symm_extra<1> {
template<typename M1, typename M2, typename Scalar>
static void run(M1&, M1&, M2&, M2&, M2&, Scalar, Scalar) {}
};
template<typename Scalar, int Size, int OtherSize> void symm(int size = Size, int othersize = OtherSize) template<typename Scalar, int Size, int OtherSize> void symm(int size = Size, int othersize = OtherSize)
{ {
typedef typename NumTraits<Scalar>::Real RealScalar; typedef typename NumTraits<Scalar>::Real RealScalar;
@ -105,8 +88,9 @@ template<typename Scalar, int Size, int OtherSize> void symm(int size = Size, in
VERIFY_IS_APPROX(rhs12.noalias() += s1 * ((m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs3).conjugate()), VERIFY_IS_APPROX(rhs12.noalias() += s1 * ((m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs3).conjugate()),
rhs13 += (s1*m1.adjoint()) * (s2*rhs3).conjugate()); rhs13 += (s1*m1.adjoint()) * (s2*rhs3).conjugate());
// test matrix * selfadjoint m2 = m1.template triangularView<Lower>();
symm_extra<OtherSize>::run(m1,m2,rhs2,rhs22,rhs23,s1,s2); VERIFY_IS_APPROX(rhs22 = (rhs2) * (m2).template selfadjointView<Lower>(), rhs23 = (rhs2) * (m1));
VERIFY_IS_APPROX(rhs22 = (s2*rhs2) * (s1*m2).template selfadjointView<Lower>(), rhs23 = (s2*rhs2) * (s1*m1));
} }