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-rw-r--r--Eigen/src/Eigenvalues/EigenSolver.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/Eigen/src/Eigenvalues/EigenSolver.h b/Eigen/src/Eigenvalues/EigenSolver.h
index a80f88eb0..f0d4e5afa 100644
--- a/Eigen/src/Eigenvalues/EigenSolver.h
+++ b/Eigen/src/Eigenvalues/EigenSolver.h
@@ -410,7 +410,7 @@ EigenSolver<MatrixType>::compute(const MatrixType& matrix, bool computeEigenvect
// Complex scalar division.
template<typename Scalar>
-std::complex<Scalar> cdiv(Scalar xr, Scalar xi, Scalar yr, Scalar yi)
+std::complex<Scalar> cdiv(const Scalar& xr, const Scalar& xi, const Scalar& yr, const Scalar& yi)
{
using std::abs;
Scalar r,d;