From a108216af168730df6e4b69ebe92128cb001f775 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Wed, 25 Jan 2012 19:02:31 +0100
Subject: fix bug #410: fix a possible out of range access in EigenSolver

---
 test/eigensolver_generic.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test/eigensolver_generic.cpp')

diff --git a/test/eigensolver_generic.cpp b/test/eigensolver_generic.cpp
index 96ff4f873..2e9cdc7a5 100644
--- a/test/eigensolver_generic.cpp
+++ b/test/eigensolver_generic.cpp
@@ -114,6 +114,17 @@ void test_eigensolver_generic()
 
   // Test problem size constructors
   CALL_SUBTEST_5(EigenSolver<MatrixXf>(s));
+
+  // regression test for bug 410
+  CALL_SUBTEST_2(
+  {
+     MatrixXd A(1,1);
+     A(0,0) = std::sqrt(-1.);
+     Eigen::EigenSolver<MatrixXd> solver(A);
+     MatrixXd V(1, 1);
+     V(0,0) = solver.eigenvectors()(0,0).real();
+  }
+  );
   
   EIGEN_UNUSED_VARIABLE(s)
 }
-- 
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