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 
symm(int size=Size,int othersize=OtherSize)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 
test_product_symm()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 }
95