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-rw-r--r--Eigen/src/Householder/BlockHouseholder.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/Eigen/src/Householder/BlockHouseholder.h b/Eigen/src/Householder/BlockHouseholder.h
index 39bf8c83d..01a7ed188 100644
--- a/Eigen/src/Householder/BlockHouseholder.h
+++ b/Eigen/src/Householder/BlockHouseholder.h
@@ -87,7 +87,8 @@ void apply_block_householder_on_the_left(MatrixType& mat, const VectorsType& vec
const TriangularView<const VectorsType, UnitLower> V(vectors);
// A -= V T V^* A
- Matrix<typename MatrixType::Scalar,VectorsType::ColsAtCompileTime,MatrixType::ColsAtCompileTime,0,
+ Matrix<typename MatrixType::Scalar,VectorsType::ColsAtCompileTime,MatrixType::ColsAtCompileTime,
+ (VectorsType::MaxColsAtCompileTime==1 && MatrixType::MaxColsAtCompileTime!=1)?RowMajor:ColMajor,
VectorsType::MaxColsAtCompileTime,MatrixType::MaxColsAtCompileTime> tmp = V.adjoint() * mat;
// FIXME add .noalias() once the triangular product can work inplace
if(forward) tmp = T.template triangularView<Upper>() * tmp;