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      1 // This file is part of Eigen, a lightweight C++ template library
      2 // for linear algebra. Eigen itself is part of the KDE project.
      3 //
      4 // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1 (at) gmail.com>
      5 //
      6 // This Source Code Form is subject to the terms of the Mozilla
      7 // Public License v. 2.0. If a copy of the MPL was not distributed
      8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
      9 
     10 #include "product.h"
     11 
     12 void test_eigen2_product_large()
     13 {
     14   for(int i = 0; i < g_repeat; i++) {
     15     CALL_SUBTEST_1( product(MatrixXf(ei_random<int>(1,320), ei_random<int>(1,320))) );
     16     CALL_SUBTEST_2( product(MatrixXd(ei_random<int>(1,320), ei_random<int>(1,320))) );
     17     CALL_SUBTEST_3( product(MatrixXi(ei_random<int>(1,320), ei_random<int>(1,320))) );
     18     CALL_SUBTEST_4( product(MatrixXcf(ei_random<int>(1,50), ei_random<int>(1,50))) );
     19     CALL_SUBTEST_5( product(Matrix<float,Dynamic,Dynamic,RowMajor>(ei_random<int>(1,320), ei_random<int>(1,320))) );
     20   }
     21 
     22 #ifdef EIGEN_TEST_PART_6
     23   {
     24     // test a specific issue in DiagonalProduct
     25     int N = 1000000;
     26     VectorXf v = VectorXf::Ones(N);
     27     MatrixXf m = MatrixXf::Ones(N,3);
     28     m = (v+v).asDiagonal() * m;
     29     VERIFY_IS_APPROX(m, MatrixXf::Constant(N,3,2));
     30   }
     31 
     32   {
     33     // test deferred resizing in Matrix::operator=
     34     MatrixXf a = MatrixXf::Random(10,4), b = MatrixXf::Random(4,10), c = a;
     35     VERIFY_IS_APPROX((a = a * b), (c * b).eval());
     36   }
     37 
     38   {
     39     MatrixXf mat1(10,10); mat1.setRandom();
     40     MatrixXf mat2(32,10); mat2.setRandom();
     41     MatrixXf result = mat1.row(2)*mat2.transpose();
     42     VERIFY_IS_APPROX(result, (mat1.row(2)*mat2.transpose()).eval());
     43   }
     44 #endif
     45 }
     46