From 3b5a9acba8ee5e08b801371122a7a544c8f26031 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Fri, 18 Sep 2009 11:41:38 +0200
Subject: [PATCH] fix stable_norm unit test

---
 Eigen/src/Householder/Householder.h | 8 ++++----
 test/stable_norm.cpp                | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Eigen/src/Householder/Householder.h b/Eigen/src/Householder/Householder.h
index 36f02d7ce..775b2f872 100644
--- a/Eigen/src/Householder/Householder.h
+++ b/Eigen/src/Householder/Householder.h
@@ -55,12 +55,12 @@ void MatrixBase<Derived>::makeHouseholderInPlace(Scalar *tau, RealScalar *beta)
   * \f$ H = I - tau v v^*\f$
   * and the vector v is:
   * \f$ v^T = [1 essential^T] \f$
-  * 
+  *
   * On output:
   * \param essential the essential part of the vector \c v
   * \param tau the scaling factor of the householder transformation
   * \param beta the result of H * \c *this
-  * 
+  *
   * \sa MatrixBase::makeHouseholderInPlace(), MatrixBase::applyHouseholderOnTheLeft(),
   *     MatrixBase::applyHouseholderOnTheRight()
   */
@@ -73,10 +73,10 @@ void MatrixBase<Derived>::makeHouseholder(
 {
   EIGEN_STATIC_ASSERT_VECTOR_ONLY(EssentialPart)
   VectorBlock<Derived, EssentialPart::SizeAtCompileTime> tail(derived(), 1, size()-1);
-  
+
   RealScalar tailSqNorm = size()==1 ? 0 : tail.squaredNorm();
   Scalar c0 = coeff(0);
-  
+
   if(tailSqNorm == RealScalar(0) && ei_imag(c0)==RealScalar(0))
   {
     *tau = 0;
diff --git a/test/stable_norm.cpp b/test/stable_norm.cpp
index b8fbf5271..726512ec0 100644
--- a/test/stable_norm.cpp
+++ b/test/stable_norm.cpp
@@ -36,7 +36,7 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
   int rows = m.rows();
   int cols = m.cols();
 
-  Scalar big = ei_random<Scalar>() * std::numeric_limits<RealScalar>::max() * RealScalar(1e-4);
+  Scalar big = ei_abs(ei_random<Scalar>()) * (std::numeric_limits<RealScalar>::max() * RealScalar(1e-4));
   Scalar small = static_cast<RealScalar>(1)/big;
 
   MatrixType  vzero = MatrixType::Zero(rows, cols),