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      1 // This file is part of Eigen, a lightweight C++ template library
      2 // for linear algebra.
      3 //
      4 // Copyright (C) 2011 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 #if defined EIGEN_TEST_PART_1 || defined EIGEN_TEST_PART_2 || defined EIGEN_TEST_PART_3 || defined EIGEN_TEST_PART_4
     11 #define EIGEN_DONT_ALIGN
     12 #elif defined EIGEN_TEST_PART_5 || defined EIGEN_TEST_PART_6 || defined EIGEN_TEST_PART_7 || defined EIGEN_TEST_PART_8
     13 #define EIGEN_DONT_ALIGN_STATICALLY
     14 #endif
     15 
     16 #include "main.h"
     17 #include <Eigen/Dense>
     18 
     19 template<typename MatrixType>
     20 void dontalign(const MatrixType& m)
     21 {
     22   typedef typename MatrixType::Index Index;
     23   typedef typename MatrixType::Scalar Scalar;
     24   typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
     25   typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime> SquareMatrixType;
     26 
     27   Index rows = m.rows();
     28   Index cols = m.cols();
     29 
     30   MatrixType a = MatrixType::Random(rows,cols);
     31   SquareMatrixType square = SquareMatrixType::Random(rows,rows);
     32   VectorType v = VectorType::Random(rows);
     33 
     34   VERIFY_IS_APPROX(v, square * square.colPivHouseholderQr().solve(v));
     35   square = square.inverse().eval();
     36   a = square * a;
     37   square = square*square;
     38   v = square * v;
     39   v = a.adjoint() * v;
     40   VERIFY(square.determinant() != Scalar(0));
     41 
     42   // bug 219: MapAligned() was giving an assert with EIGEN_DONT_ALIGN, because Map Flags were miscomputed
     43   Scalar* array = internal::aligned_new<Scalar>(rows);
     44   v = VectorType::MapAligned(array, rows);
     45   internal::aligned_delete(array, rows);
     46 }
     47 
     48 void test_dontalign()
     49 {
     50 #if defined EIGEN_TEST_PART_1 || defined EIGEN_TEST_PART_5
     51   dontalign(Matrix3d());
     52   dontalign(Matrix4f());
     53 #elif defined EIGEN_TEST_PART_2 || defined EIGEN_TEST_PART_6
     54   dontalign(Matrix3cd());
     55   dontalign(Matrix4cf());
     56 #elif defined EIGEN_TEST_PART_3 || defined EIGEN_TEST_PART_7
     57   dontalign(Matrix<float, 32, 32>());
     58   dontalign(Matrix<std::complex<float>, 32, 32>());
     59 #elif defined EIGEN_TEST_PART_4 || defined EIGEN_TEST_PART_8
     60   dontalign(MatrixXd(32, 32));
     61   dontalign(MatrixXcf(32, 32));
     62 #endif
     63 }
     64