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-rw-r--r--test/qr_fullpivoting.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/test/qr_fullpivoting.cpp b/test/qr_fullpivoting.cpp
index 511f2473f..601773404 100644
--- a/test/qr_fullpivoting.cpp
+++ b/test/qr_fullpivoting.cpp
@@ -40,7 +40,11 @@ template<typename MatrixType> void qr()
MatrixType c = qr.matrixQ() * r * qr.colsPermutation().inverse();
VERIFY_IS_APPROX(m1, c);
-
+
+ // stress the ReturnByValue mechanism
+ MatrixType tmp;
+ VERIFY_IS_APPROX(tmp.noalias() = qr.matrixQ() * r, (qr.matrixQ() * r).eval());
+
MatrixType m2 = MatrixType::Random(cols,cols2);
MatrixType m3 = m1*m2;
m2 = MatrixType::Random(cols,cols2);