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bug #1741: fix self-adjoint*matrix, triangular*matrix, and triangular^1*matrix with a destination having a non-trivial inner-stride

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This commit is contained in:
Gael Guennebaud
2019-09-11 15:04:25 +02:00
parent 6abc9e5379
commit 52d159c19f
11 changed files with 248 additions and 172 deletions
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20
test/product_symm.cpp
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@@ -75,12 +75,12 @@ template<typename Scalar, int Size, int OtherSize> void symm(int size = Size, in
rhs13 = (s1*m1.adjoint()) * (s2*rhs2.adjoint()));
// test row major = <...>
m2 = m1.template triangularView<Lower>(); rhs12.setRandom(); rhs13 = rhs12;
VERIFY_IS_APPROX(rhs12 -= (s1*m2).template selfadjointView<Lower>() * (s2*rhs3),
m2 = m1.template triangularView<Lower>(); rhs32.setRandom(); rhs13 = rhs32;
VERIFY_IS_APPROX(rhs32.noalias() -= (s1*m2).template selfadjointView<Lower>() * (s2*rhs3),
rhs13 -= (s1*m1) * (s2 * rhs3));
m2 = m1.template triangularView<Upper>();
VERIFY_IS_APPROX(rhs12 = (s1*m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs3).conjugate(),
VERIFY_IS_APPROX(rhs32.noalias() = (s1*m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs3).conjugate(),
rhs13 = (s1*m1.adjoint()) * (s2*rhs3).conjugate());
@@ -92,6 +92,20 @@ template<typename Scalar, int Size, int OtherSize> void symm(int size = Size, in
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));
// destination with a non-default inner-stride
// see bug 1741
{
typedef Matrix<Scalar,Dynamic,Dynamic> MatrixX;
MatrixX buffer(2*cols,2*othersize);
Map<Rhs1,0,Stride<Dynamic,2> > map1(buffer.data(),cols,othersize,Stride<Dynamic,2>(2*rows,2));
buffer.setZero();
VERIFY_IS_APPROX( map1.noalias() = (s1*m2).template selfadjointView<Lower>() * (s2*rhs1),
rhs13 = (s1*m1) * (s2*rhs1));
Map<Rhs2,0,Stride<Dynamic,2> > map2(buffer.data(),rhs22.rows(),rhs22.cols(),Stride<Dynamic,2>(2*rhs22.outerStride(),2));
buffer.setZero();
VERIFY_IS_APPROX(map2 = (rhs2) * (m2).template selfadjointView<Lower>(), rhs23 = (rhs2) * (m1));
}
}
void test_product_symm()