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

   1 // This file is part of Eigen, a lightweight C++ template library
   2 // for linear algebra.
   3 //
   4 // Copyright (C) 2008-2009 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 #include "main.h"
  11
  12 template<typename Scalar, int Size, int OtherSize> void symm(int size = Size, int othersize = OtherSize)
  13 {
  14   typedef Matrix<Scalar, Size, Size> MatrixType;
  15   typedef Matrix<Scalar, Size, OtherSize> Rhs1;
  16   typedef Matrix<Scalar, OtherSize, Size> Rhs2;
  17   enum { order = OtherSize==1 ? 0 : RowMajor };
  18   typedef Matrix<Scalar, Size, OtherSize,order> Rhs3;
  19   typedef typename MatrixType::Index Index;
  20
  21   Index rows = size;
  22   Index cols = size;
  23
  24   MatrixType m1 = MatrixType::Random(rows, cols),
  25              m2 = MatrixType::Random(rows, cols), m3;
  26
  27   m1 = (m1+m1.adjoint()).eval();
  28
  29   Rhs1 rhs1 = Rhs1::Random(cols, othersize), rhs12(cols, othersize), rhs13(cols, othersize);
  30   Rhs2 rhs2 = Rhs2::Random(othersize, rows), rhs22(othersize, rows), rhs23(othersize, rows);
  31   Rhs3 rhs3 = Rhs3::Random(cols, othersize), rhs32(cols, othersize), rhs33(cols, othersize);
  32
  33   Scalar s1 = internal::random<Scalar>(),
  34          s2 = internal::random<Scalar>();
  35
  36   m2 = m1.template triangularView<Lower>();
  37   m3 = m2.template selfadjointView<Lower>();
  38   VERIFY_IS_EQUAL(m1, m3);
  39   VERIFY_IS_APPROX(rhs12 = (s1*m2).template selfadjointView<Lower>() * (s2*rhs1),
  40                    rhs13 = (s1*m1) * (s2*rhs1));
  41
  42   m2 = m1.template triangularView<Upper>(); rhs12.setRandom(); rhs13 = rhs12;
  43   m3 = m2.template selfadjointView<Upper>();
  44   VERIFY_IS_EQUAL(m1, m3);
  45   VERIFY_IS_APPROX(rhs12 += (s1*m2).template selfadjointView<Upper>() * (s2*rhs1),
  46                    rhs13 += (s1*m1) * (s2*rhs1));
  47
  48   m2 = m1.template triangularView<Lower>();
  49   VERIFY_IS_APPROX(rhs12 = (s1*m2).template selfadjointView<Lower>() * (s2*rhs2.adjoint()),
  50                    rhs13 = (s1*m1) * (s2*rhs2.adjoint()));
  51
  52   m2 = m1.template triangularView<Upper>();
  53   VERIFY_IS_APPROX(rhs12 = (s1*m2).template selfadjointView<Upper>() * (s2*rhs2.adjoint()),
  54                    rhs13 = (s1*m1) * (s2*rhs2.adjoint()));
  55
  56   m2 = m1.template triangularView<Upper>();
  57   VERIFY_IS_APPROX(rhs12 = (s1*m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs2.adjoint()),
  58                    rhs13 = (s1*m1.adjoint()) * (s2*rhs2.adjoint()));
  59
  60   // test row major = <...>
  61   m2 = m1.template triangularView<Lower>(); rhs12.setRandom(); rhs13 = rhs12;
  62   VERIFY_IS_APPROX(rhs12 -= (s1*m2).template selfadjointView<Lower>() * (s2*rhs3),
  63                    rhs13 -= (s1*m1) * (s2 * rhs3));
  64
  65   m2 = m1.template triangularView<Upper>();
  66   VERIFY_IS_APPROX(rhs12 = (s1*m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs3).conjugate(),
  67                    rhs13 = (s1*m1.adjoint()) * (s2*rhs3).conjugate());
  68
  69
  70   m2 = m1.template triangularView<Upper>(); rhs13 = rhs12;
  71   VERIFY_IS_APPROX(rhs12.noalias() += s1 * ((m2.adjoint()).template selfadjointView<Lower>() * (s2*rhs3).conjugate()),
  72                    rhs13 += (s1*m1.adjoint()) * (s2*rhs3).conjugate());
  73
  74   m2 = m1.template triangularView<Lower>();
  75   VERIFY_IS_APPROX(rhs22 = (rhs2) * (m2).template selfadjointView<Lower>(), rhs23 = (rhs2) * (m1));
  76   VERIFY_IS_APPROX(rhs22 = (s2*rhs2) * (s1*m2).template selfadjointView<Lower>(), rhs23 = (s2*rhs2) * (s1*m1));
  77
  78 }
  79
  80 void test_product_symm()
  81 {
  82   for(int i = 0; i < g_repeat ; i++)
  83   {
  84     CALL_SUBTEST_1(( symm<float,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE),internal::random<int>(1,EIGEN_TEST_MAX_SIZE)) ));
  85     CALL_SUBTEST_2(( symm<double,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE),internal::random<int>(1,EIGEN_TEST_MAX_SIZE)) ));
  86     CALL_SUBTEST_3(( symm<std::complex<float>,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2),internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2)) ));
  87     CALL_SUBTEST_4(( symm<std::complex<double>,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2),internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2)) ));
  88
  89     CALL_SUBTEST_5(( symm<float,Dynamic,1>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE)) ));
  90     CALL_SUBTEST_6(( symm<double,Dynamic,1>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE)) ));
  91     CALL_SUBTEST_7(( symm<std::complex<float>,Dynamic,1>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE)) ));
  92     CALL_SUBTEST_8(( symm<std::complex<double>,Dynamic,1>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE)) ));
  93   }
  94 }