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dontalign.cpp
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Thu, Feb 20, 22:00

dontalign.cpp
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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2011 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// 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/.
#if defined EIGEN_TEST_PART_1 || defined EIGEN_TEST_PART_2 || defined EIGEN_TEST_PART_3 || defined EIGEN_TEST_PART_4
#define EIGEN_DONT_ALIGN
#elif defined EIGEN_TEST_PART_5 || defined EIGEN_TEST_PART_6 || defined EIGEN_TEST_PART_7 || defined EIGEN_TEST_PART_8
#define EIGEN_DONT_ALIGN_STATICALLY
#endif
#include "main.h"
#include <Eigen/Dense>
template<typename MatrixType>
void dontalign(const MatrixType& m)
{
typedef typename MatrixType::Scalar Scalar;
typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime> SquareMatrixType;
Index rows = m.rows();
Index cols = m.cols();
MatrixType a = MatrixType::Random(rows,cols);
SquareMatrixType square = SquareMatrixType::Random(rows,rows);
VectorType v = VectorType::Random(rows);
VERIFY_IS_APPROX(v, square * square.colPivHouseholderQr().solve(v));
square = square.inverse().eval();
a = square * a;
square = square*square;
v = square * v;
v = a.adjoint() * v;
VERIFY(square.determinant() != Scalar(0));
// bug 219: MapAligned() was giving an assert with EIGEN_DONT_ALIGN, because Map Flags were miscomputed
Scalar* array = internal::aligned_new<Scalar>(rows);
v = VectorType::MapAligned(array, rows);
internal::aligned_delete(array, rows);
}
EIGEN_DECLARE_TEST(dontalign)
{
#if defined EIGEN_TEST_PART_1 || defined EIGEN_TEST_PART_5
dontalign(Matrix3d());
dontalign(Matrix4f());
#elif defined EIGEN_TEST_PART_2 || defined EIGEN_TEST_PART_6
dontalign(Matrix3cd());
dontalign(Matrix4cf());
#elif defined EIGEN_TEST_PART_3 || defined EIGEN_TEST_PART_7
dontalign(Matrix<float, 32, 32>());
dontalign(Matrix<std::complex<float>, 32, 32>());
#elif defined EIGEN_TEST_PART_4 || defined EIGEN_TEST_PART_8
dontalign(MatrixXd(32, 32));
dontalign(MatrixXcf(32, 32));
#endif
}

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