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bug #1741: fix SelfAdjointView::rankUpdate and product to triangular part for destination with non-trivial inner stride

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This commit is contained in:
Gael Guennebaud
2019-09-10 23:29:52 +02:00
parent ea0d5dc956
commit c06e6fd115
4 changed files with 58 additions and 31 deletions
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11
test/product_syrk.cpp
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@@ -115,6 +115,17 @@ template<typename MatrixType> void syrk(const MatrixType& m)
m2.setZero();
VERIFY_IS_APPROX((m2.template selfadjointView<Upper>().rankUpdate(m1.row(c).adjoint(),s1)._expression()),
((s1 * m1.row(c).adjoint() * m1.row(c).adjoint().adjoint()).eval().template triangularView<Upper>().toDenseMatrix()));
// destination with a non-default inner-stride
// see bug 1741
{
typedef Matrix<Scalar,Dynamic,Dynamic> MatrixX;
MatrixX buffer(2*rows,2*cols);
Map<MatrixType,0,Stride<Dynamic,2> > map1(buffer.data(),rows,cols,Stride<Dynamic,2>(2*rows,2));
buffer.setZero();
VERIFY_IS_APPROX((map1.template selfadjointView<Lower>().rankUpdate(rhs2,s1)._expression()),
((s1 * rhs2 * rhs2.adjoint()).eval().template triangularView<Lower>().toDenseMatrix()));
}
}
EIGEN_DECLARE_TEST(product_syrk)