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bug #1741: fix C.noalias() = A*C; with C.innerStride()!=1

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This commit is contained in:
Gael Guennebaud
2019-09-10 16:25:24 +02:00
parent 17226100c5
commit ea0d5dc956
6 changed files with 153 additions and 37 deletions
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15
test/product.h
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@@ -241,4 +241,19 @@ template<typename MatrixType> void product(const MatrixType& m)
VERIFY_IS_APPROX(square * (square*square).conjugate(), square * square.conjugate() * square.conjugate());
}
// destination with a non-default inner-stride
// see bug 1741
if(!MatrixType::IsRowMajor)
{
typedef Matrix<Scalar,Dynamic,Dynamic> MatrixX;
MatrixX buffer(2*rows,2*rows);
Map<RowSquareMatrixType,0,Stride<Dynamic,2> > map1(buffer.data(),rows,rows,Stride<Dynamic,2>(2*rows,2));
buffer.setZero();
VERIFY_IS_APPROX(map1 = m1 * m2.transpose(), (m1 * m2.transpose()).eval());
buffer.setZero();
VERIFY_IS_APPROX(map1.noalias() = m1 * m2.transpose(), (m1 * m2.transpose()).eval());
buffer.setZero();
VERIFY_IS_APPROX(map1.noalias() += m1 * m2.transpose(), (m1 * m2.transpose()).eval());
}
}