ground/gcs/src/libs/eigen/test/eigen2support.cpp

   1 // This file is part of Eigen, a lightweight C++ template library
   2 // for linear algebra.
   3 //
   4 // Copyright (C) 2009 Gael Guennebaud <gael.guennebaud@inria.fr>
   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 #define EIGEN2_SUPPORT
  11
  12 #include "main.h"
  13
  14 template<typename MatrixType> void eigen2support(const MatrixType& m)
  15 {
  16   typedef typename MatrixType::Index Index;
  17   typedef typename MatrixType::Scalar Scalar;
  18
  19   Index rows = m.rows();
  20   Index cols = m.cols();
  21
  22   MatrixType m1 = MatrixType::Random(rows, cols),
  23              m3(rows, cols);
  24
  25   Scalar  s1 = internal::random<Scalar>(),
  26           s2 = internal::random<Scalar>();
  27
  28   // scalar addition
  29   VERIFY_IS_APPROX(m1.cwise() + s1, s1 + m1.cwise());
  30   VERIFY_IS_APPROX(m1.cwise() + s1, MatrixType::Constant(rows,cols,s1) + m1);
  31   VERIFY_IS_APPROX((m1*Scalar(2)).cwise() - s2, (m1+m1) - MatrixType::Constant(rows,cols,s2) );
  32   m3 = m1;
  33   m3.cwise() += s2;
  34   VERIFY_IS_APPROX(m3, m1.cwise() + s2);
  35   m3 = m1;
  36   m3.cwise() -= s1;
  37   VERIFY_IS_APPROX(m3, m1.cwise() - s1);
  38
  39   VERIFY_IS_EQUAL((m1.corner(TopLeft,1,1)), (m1.block(0,0,1,1)));
  40   VERIFY_IS_EQUAL((m1.template corner<1,1>(TopLeft)), (m1.template block<1,1>(0,0)));
  41   VERIFY_IS_EQUAL((m1.col(0).start(1)), (m1.col(0).segment(0,1)));
  42   VERIFY_IS_EQUAL((m1.col(0).template start<1>()), (m1.col(0).segment(0,1)));
  43   VERIFY_IS_EQUAL((m1.col(0).end(1)), (m1.col(0).segment(rows-1,1)));
  44   VERIFY_IS_EQUAL((m1.col(0).template end<1>()), (m1.col(0).segment(rows-1,1)));
  45
  46   using std::cos;
  47   using numext::real;
  48   using numext::abs2;
  49   VERIFY_IS_EQUAL(ei_cos(s1), cos(s1));
  50   VERIFY_IS_EQUAL(ei_real(s1), real(s1));
  51   VERIFY_IS_EQUAL(ei_abs2(s1), abs2(s1));
  52
  53   m1.minor(0,0);
  54 }
  55
  56 void test_eigen2support()
  57 {
  58   for(int i = 0; i < g_repeat; i++) {
  59     CALL_SUBTEST_1( eigen2support(Matrix<double,1,1>()) );
  60     CALL_SUBTEST_2( eigen2support(MatrixXd(1,1)) );
  61     CALL_SUBTEST_4( eigen2support(Matrix3f()) );
  62     CALL_SUBTEST_5( eigen2support(Matrix4d()) );
  63     CALL_SUBTEST_2( eigen2support(MatrixXf(200,200)) );
  64     CALL_SUBTEST_6( eigen2support(MatrixXcd(100,100)) );
  65   }
  66 }