commit e75b1eb883bd65f8f34b1ca2ca13cd28744ab13a
author Gael Guennebaud <g.gael@free.fr> Wed Jul 25 09:33:50 2012 +0200
committer Gael Guennebaud <g.gael@free.fr> Wed Jul 25 09:33:50 2012 +0200
tree 48adc816550fa2e68636054fa58a25c00d08540b
parent 7b34b5f6f98115efbda9d127378aea5d403a4905

Fix aliasing issue in sparse matrix assignment.
(m=-m; or m=m.transpose(); with m sparse work again)

test/sparse_vector.cpp

diff --git a/test/sparse_vector.cpp b/test/sparse_vector.cpp
index 7201afe..9d559f5 100644
--- a/test/sparse_vector.cpp
+++ b/test/sparse_vector.cpp
@@ -78,6 +78,11 @@
 
   VERIFY_IS_APPROX(v1.squaredNorm(), refV1.squaredNorm());
 
+  // test aliasing
+  VERIFY_IS_APPROX((v1 = -v1), (refV1 = -refV1));
+  VERIFY_IS_APPROX((v1 = v1.transpose()), (refV1 = refV1.transpose().eval()));
+  VERIFY_IS_APPROX((v1 += -v1), (refV1 += -refV1));
+
 }
 
 void test_sparse_vector()