diff --git a/unsupported/test/Complex.cpp b/unsupported/test/Complex.cpp
new file mode 100644
index 000000000..6360b58e4
--- /dev/null
+++ b/unsupported/test/Complex.cpp
@@ -0,0 +1,72 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2009 Mark Borgerding mark a borgerding net
+//
+// Eigen is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3 of the License, or (at your option) any later version.
+//
+// Alternatively, you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+#ifdef EIGEN_TEST_FUNC
+#include "main.h"
+#else 
+#include <iostream>
+
+#define CALL_SUBTEST(x) x
+#define VERIFY(x) x
+#define test_Complex main
+#endif
+
+#include <unsupported/Eigen/Complex>
+#include <vector>
+
+using namespace std;
+using namespace Eigen;
+
+template <typename T>
+void take_std( std::complex<T> * dst, int n )
+{
+    cout << dst[n-1] << endl;
+}
+
+
+template <typename T>
+void syntax()
+{
+    vector< Complex<T> > a;
+    a.resize( 9 );
+    //Complex<T> a[9];
+    Complex<T> b[9];
+
+    std::complex<T> * pa = &a[0]; // this works fine
+    std::complex<T> * pb = &b[0]; // this works fine
+    //VERIFY()
+    // this does not compile: 
+    //  take_std( &a[0] , a.size() );
+
+    take_std( pa,9);
+    take_std( pb,9);
+    //take_std( static_cast<std::complex<T> *>( &a[0] ) , a.size() );
+    //take_std( &b[0] , 9 );
+}
+
+int test_Complex()
+{
+  CALL_SUBTEST( syntax<float>() );
+  //CALL_SUBTEST( syntax<double>() );
+  //CALL_SUBTEST( syntax<long double>() );
+}