text: // This file is part of Eigen, a lightweight C++ template library
  // for linear algebra.
  //
  // Copyright (C) 2010 Gael Guennebaud <gael.guennebaud@inria.fr>
  //
  // 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/.
  
  #include "main.h"
  
  #define CHECK_MMTR(DEST, TRI, OP) {                   \
      ref2 = ref1 = DEST;                               \
      DEST.template triangularView<TRI>() OP;           \
      ref1 OP;                                          \
      ref2.template triangularView<TRI>() = ref1;       \
      VERIFY_IS_APPROX(DEST,ref2);                      \
    }
  
  template<typename Scalar> void mmtr(int size)
  {
    typedef Matrix<Scalar,Dynamic,Dynamic,ColMajor> MatrixColMaj;
    typedef Matrix<Scalar,Dynamic,Dynamic,RowMajor> MatrixRowMaj;
  
    DenseIndex othersize = internal::random<DenseIndex>(1,200);
    
    MatrixColMaj matc(size, size);
    MatrixRowMaj matr(size, size);
    MatrixColMaj ref1(size, size), ref2(size, size);
    
    MatrixColMaj soc(size,othersize); soc.setRandom();
    MatrixColMaj osc(othersize,size); osc.setRandom();
    MatrixRowMaj sor(size,othersize); sor.setRandom();
    MatrixRowMaj osr(othersize,size); osr.setRandom();
    
    Scalar s = internal::random<Scalar>();
    
    CHECK_MMTR(matc, Lower, = s*soc*sor.adjoint());
    CHECK_MMTR(matc, Upper, = s*(soc*soc.adjoint()));
    CHECK_MMTR(matr, Lower, = s*soc*soc.adjoint());
    CHECK_MMTR(matr, Upper, = soc*(s*sor.adjoint()));
    
    CHECK_MMTR(matc, Lower, += s*soc*soc.adjoint());
    CHECK_MMTR(matc, Upper, += s*(soc*sor.transpose()));
    CHECK_MMTR(matr, Lower, += s*sor*soc.adjoint());
    CHECK_MMTR(matr, Upper, += soc*(s*soc.adjoint()));
    
    CHECK_MMTR(matc, Lower, -= s*soc*soc.adjoint());
    CHECK_MMTR(matc, Upper, -= s*(osc.transpose()*osc.conjugate()));
    CHECK_MMTR(matr, Lower, -= s*soc*soc.adjoint());
    CHECK_MMTR(matr, Upper, -= soc*(s*soc.adjoint()));
  }
  
  void test_product_mmtr()
  {
    for(int i = 0; i < g_repeat ; i++)
    {
      CALL_SUBTEST_1((mmtr<float>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE))));
      CALL_SUBTEST_2((mmtr<double>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE))));
      CALL_SUBTEST_3((mmtr<std::complex<float> >(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))));
      CALL_SUBTEST_4((mmtr<std::complex<double> >(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))));
    }
  }
  