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+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#define EIGEN2_SUPPORT
+
+#include "main.h"
+
+template <typename MatrixType>
+void eigen2support(const MatrixType& m) {
+  typedef typename MatrixType::Scalar Scalar;
+
+  Index rows = m.rows();
+  Index cols = m.cols();
+
+  MatrixType m1 = MatrixType::Random(rows, cols), m3(rows, cols);
+
+  Scalar s1 = internal::random<Scalar>(), s2 = internal::random<Scalar>();
+
+  // scalar addition
+  VERIFY_IS_APPROX(m1.cwise() + s1, s1 + m1.cwise());
+  VERIFY_IS_APPROX(m1.cwise() + s1, MatrixType::Constant(rows, cols, s1) + m1);
+  VERIFY_IS_APPROX((m1 * Scalar(2)).cwise() - s2, (m1 + m1) - MatrixType::Constant(rows, cols, s2));
+  m3 = m1;
+  m3.cwise() += s2;
+  VERIFY_IS_APPROX(m3, m1.cwise() + s2);
+  m3 = m1;
+  m3.cwise() -= s1;
+  VERIFY_IS_APPROX(m3, m1.cwise() - s1);
+
+  VERIFY_IS_EQUAL((m1.corner(TopLeft, 1, 1)), (m1.block(0, 0, 1, 1)));
+  VERIFY_IS_EQUAL((m1.template corner<1, 1>(TopLeft)), (m1.template block<1, 1>(0, 0)));
+  VERIFY_IS_EQUAL((m1.col(0).start(1)), (m1.col(0).segment(0, 1)));
+  VERIFY_IS_EQUAL((m1.col(0).template start<1>()), (m1.col(0).segment(0, 1)));
+  VERIFY_IS_EQUAL((m1.col(0).end(1)), (m1.col(0).segment(rows - 1, 1)));
+  VERIFY_IS_EQUAL((m1.col(0).template end<1>()), (m1.col(0).segment(rows - 1, 1)));
+
+  using numext::abs2;
+  using numext::real;
+  using std::cos;
+  VERIFY_IS_EQUAL(ei_cos(s1), cos(s1));
+  VERIFY_IS_EQUAL(ei_real(s1), real(s1));
+  VERIFY_IS_EQUAL(ei_abs2(s1), abs2(s1));
+
+  m1.minor(0, 0);
+}
+
+EIGEN_DECLARE_TEST(eigen2support) {
+  for (int i = 0; i < g_repeat; i++) {
+    CALL_SUBTEST_1(eigen2support(Matrix<double, 1, 1>()));
+    CALL_SUBTEST_2(eigen2support(MatrixXd(1, 1)));
+    CALL_SUBTEST_4(eigen2support(Matrix3f()));
+    CALL_SUBTEST_5(eigen2support(Matrix4d()));
+    CALL_SUBTEST_2(eigen2support(MatrixXf(200, 200)));
+    CALL_SUBTEST_6(eigen2support(MatrixXcd(100, 100)));
+  }
+}