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-rw-r--r--test/stable_norm.cpp14
1 files changed, 11 insertions, 3 deletions
diff --git a/test/stable_norm.cpp b/test/stable_norm.cpp
index c09fc17b7..364170acd 100644
--- a/test/stable_norm.cpp
+++ b/test/stable_norm.cpp
@@ -55,8 +55,16 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
Index rows = m.rows();
Index cols = m.cols();
- Scalar big = internal::random<Scalar>() * ((std::numeric_limits<RealScalar>::max)() * RealScalar(1e-4));
- Scalar small = internal::random<Scalar>() * ((std::numeric_limits<RealScalar>::min)() * RealScalar(1e4));
+ // get a non-zero random factor
+ Scalar factor = internal::random<Scalar>();
+ while(factor<RealScalar(1e-3))
+ factor = internal::random<Scalar>();
+ Scalar big = factor * ((std::numeric_limits<RealScalar>::max)() * RealScalar(1e-4));
+
+ factor = internal::random<Scalar>();
+ while(factor<RealScalar(1e-3))
+ factor = internal::random<Scalar>();
+ Scalar small = factor * ((std::numeric_limits<RealScalar>::min)() * RealScalar(1e4));
MatrixType vzero = MatrixType::Zero(rows, cols),
vrand = MatrixType::Random(rows, cols),
@@ -91,7 +99,7 @@ template<typename MatrixType> void stable_norm(const MatrixType& m)
VERIFY_IS_APPROX(vsmall.blueNorm(), sqrt(size)*abs(small));
VERIFY_IS_APPROX(vsmall.hypotNorm(), sqrt(size)*abs(small));
-// Test compilation of cwise() version
+ // Test compilation of cwise() version
VERIFY_IS_APPROX(vrand.colwise().stableNorm(), vrand.colwise().norm());
VERIFY_IS_APPROX(vrand.colwise().blueNorm(), vrand.colwise().norm());
VERIFY_IS_APPROX(vrand.colwise().hypotNorm(), vrand.colwise().norm());