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bug #1550: prevent avoidable memory allocation in RealSchur

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This commit is contained in:
Gael Guennebaud 2018-06-08 10:14:57 +02:00
parent 7933267c67
commit f05dea6b23
1 changed files with 2 additions and 2 deletions
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4
Eigen/src/Eigenvalues/RealSchur.h
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@ -284,13 +284,13 @@ RealSchur<MatrixType>& RealSchur<MatrixType>::computeFromHessenberg(const HessMa
using std::abs;
m_matT = matrixH;
m_workspaceVector.resize(m_matT.cols());
if(computeU)
m_matU = matrixQ;
matrixQ.evalTo(m_matU, m_workspaceVector);
Index maxIters = m_maxIters;
if (maxIters == -1)
maxIters = m_maxIterationsPerRow * matrixH.rows();
m_workspaceVector.resize(m_matT.cols());
Scalar* workspace = &m_workspaceVector.coeffRef(0);
// The matrix m_matT is divided in three parts.