/home/vivien/public_html/.src_seldon/matrix_sparse/Matrix_SymComplexSparse.cxx

// Copyright (C) 2001-2009 Vivien Mallet
// Copyright (C) 2003-2009 Marc Duruflé
//
// This file is part of the linear-algebra library Seldon,
// http://seldon.sourceforge.net/.
//
// Seldon is free software; you can redistribute it and/or modify it under the
// terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 2.1 of the License, or (at your option)
// any later version.
//
// Seldon is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
// more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Seldon. If not, see http://www.gnu.org/licenses/.


#ifndef SELDON_FILE_MATRIX_SYMCOMPLEXSPARSE_CXX

#include "Matrix_SymComplexSparse.hxx"

namespace Seldon
{


  /****************
   * CONSTRUCTORS *
   ****************/



  template <class T, class Prop, class Storage, class Allocator>
  inline Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Matrix_SymComplexSparse(): Matrix_Base<T, Allocator>()
  {
    real_nz_ = 0;
    imag_nz_ = 0;
    real_ptr_ = NULL;
    imag_ptr_ = NULL;
    real_ind_ = NULL;
    imag_ind_ = NULL;
    real_data_ = NULL;
    imag_data_ = NULL;
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Matrix_SymComplexSparse(int i, int j): Matrix_Base<T, Allocator>()
  {
    real_nz_ = 0;
    imag_nz_ = 0;
    real_ptr_ = NULL;
    imag_ptr_ = NULL;
    real_ind_ = NULL;
    imag_ind_ = NULL;
    real_data_ = NULL;
    imag_data_ = NULL;

    Reallocate(i, i);
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Matrix_SymComplexSparse(int i, int j, int real_nz, int imag_nz):
    Matrix_Base<T, Allocator>()
  {
    real_nz_ = 0;
    imag_nz_ = 0;
    real_ptr_ = NULL;
    imag_ptr_ = NULL;
    real_ind_ = NULL;
    imag_ind_ = NULL;
    real_data_ = NULL;
    imag_data_ = NULL;

    Reallocate(i, i, real_nz, imag_nz);
  }



  template <class T, class Prop, class Storage, class Allocator>
  template <class Storage0, class Allocator0,
            class Storage1, class Allocator1,
            class Storage2, class Allocator2>
  inline Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  Matrix_SymComplexSparse(int i, int j,
                          Vector<T, Storage0, Allocator0>& real_values,
                          Vector<int, Storage1, Allocator1>& real_ptr,
                          Vector<int, Storage2, Allocator2>& real_ind,
                          Vector<T, Storage0, Allocator0>& imag_values,
                          Vector<int, Storage1, Allocator1>& imag_ptr,
                          Vector<int, Storage2, Allocator2>& imag_ind):
    Matrix_Base<T, Allocator>(i, j)
  {
    real_nz_ = real_values.GetLength();
    imag_nz_ = imag_values.GetLength();

#ifdef SELDON_CHECK_DIMENSIONS
    // Checks whether vector sizes are acceptable.

    if (real_ind.GetLength() != real_nz_)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + string("Matrix_SymComplexSparse(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("There are ") + to_str(real_nz_)
                       + " values (real part) but "
                       + to_str(real_ind.GetLength())
                       + " row or column indices.");
      }

    if (imag_ind.GetLength() != imag_nz_)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + string("Matrix_SymComplexSparse(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("There are ") + to_str(imag_nz_)
                       + " values (imaginary part) but "
                       + to_str(imag_ind.GetLength())
                       + " row or column indices.");
      }

    if (real_ptr.GetLength() - 1 != i)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + string("Matrix_SymComplexSparse(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("The vector of start indices (real part)")
                       + " contains " + to_str(real_ptr.GetLength()-1)
                       + string(" row or column start indices (plus the")
                       + " number of non-zero entries) but there are "
                       + to_str(i) + " rows or columns ("
                       + to_str(i) + " by " + to_str(i) + " matrix).");
      }

    if (imag_ptr.GetLength() - 1 != i)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + string("Matrix_SymComplexSparse(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("The vector of start indices (imaginary part)")
                       + " contains " + to_str(imag_ptr.GetLength()-1)
                       + string(" row or column start indices (plus the")
                       + " number of non-zero entries) but there are "
                       + to_str(i) + " rows or columns ("
                       + to_str(i) + " by " + to_str(i) + " matrix).");
      }

    if ( (static_cast<long int>(2 * real_nz_ - 2)
          / static_cast<long int>(i + 1)
          >= static_cast<long int>(i)) ||
         (static_cast<long int>(2 * imag_nz_ - 2)
          / static_cast<long int>(i + 1)
          >= static_cast<long int>(i)) )
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + string("Matrix_SymComplexSparse(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("There are more values (")
                       + to_str(real_values.GetLength())
                       + " values for the real part and "
                       + to_str(real_values.GetLength()) + " values for"
                       + string(" the imaginary part) than elements in the")
                       + " matrix (" + to_str(i) + " by " + to_str(i) + ").");
      }
#endif

    this->real_ptr_ = real_ptr.GetData();
    this->imag_ptr_ = imag_ptr.GetData();
    this->real_ind_ = real_ind.GetData();
    this->imag_ind_ = imag_ind.GetData();
    this->real_data_ = real_values.GetData();
    this->imag_data_ = imag_values.GetData();

    real_ptr.Nullify();
    imag_ptr.Nullify();
    real_ind.Nullify();
    imag_ind.Nullify();
    real_values.Nullify();
    imag_values.Nullify();
  }


  template <class T, class Prop, class Storage, class Allocator>
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Matrix_SymComplexSparse(const Matrix_SymComplexSparse<T, Prop,
                            Storage, Allocator>& A)
  {
    this->m_ = 0;
    this->n_ = 0;
    real_nz_ = 0;
    imag_nz_ = 0;
    real_ptr_ = NULL;
    imag_ptr_ = NULL;
    real_ind_ = NULL;
    imag_ind_ = NULL;
    real_data_ = NULL;
    imag_data_ = NULL;

    this->Copy(A);
  }


  /**************
   * DESTRUCTOR *
   **************/


  template <class T, class Prop, class Storage, class Allocator>
  inline Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::~Matrix_SymComplexSparse()
  {
    this->m_ = 0;
    this->n_ = 0;

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        if (real_ptr_ != NULL)
          {
            free(real_ptr_);
            real_ptr_ = NULL;
          }

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        real_ptr_ = NULL;
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        if (imag_ptr_ != NULL)
          {
            free(imag_ptr_);
            imag_ptr_ = NULL;
          }

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        imag_ptr_ = NULL;
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        if (real_ind_ != NULL)
          {
            free(real_ind_);
            real_ind_ = NULL;
          }

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        real_ind_ = NULL;
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        if (imag_ind_ != NULL)
          {
            free(imag_ind_);
            imag_ind_ = NULL;
          }

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        imag_ind_ = NULL;
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        if (this->real_data_ != NULL)
          {
            this->allocator_.deallocate(this->real_data_, real_nz_);
            this->real_data_ = NULL;
          }

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->real_nz_ = 0;
        this->real_data_ = NULL;
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        if (this->imag_data_ != NULL)
          {
            this->allocator_.deallocate(this->imag_data_, imag_nz_);
            this->imag_data_ = NULL;
          }

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->imag_nz_ = 0;
        this->imag_data_ = NULL;
      }
#endif

    this->real_nz_ = 0;
    this->imag_nz_ = 0;
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::Clear()
  {
    this->~Matrix_SymComplexSparse();
  }


  /*********************
   * MEMORY MANAGEMENT *
   *********************/



  template <class T, class Prop, class Storage, class Allocator>
  template <class Storage0, class Allocator0,
            class Storage1, class Allocator1,
            class Storage2, class Allocator2>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  SetData(int i, int j,
          Vector<T, Storage0, Allocator0>& real_values,
          Vector<int, Storage1, Allocator1>& real_ptr,
          Vector<int, Storage2, Allocator2>& real_ind,
          Vector<T, Storage0, Allocator0>& imag_values,
          Vector<int, Storage1, Allocator1>& imag_ptr,
          Vector<int, Storage2, Allocator2>& imag_ind)
  {
    this->Clear();
    this->m_ = i;
    this->n_ = i;
    real_nz_ = real_values.GetLength();
    imag_nz_ = imag_values.GetLength();

#ifdef SELDON_CHECK_DIMENSIONS
    // Checks whether vector sizes are acceptable.

    if (real_ind.GetLength() != real_nz_)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::SetData(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("There are ") + to_str(real_nz_)
                       + " values (real part) but "
                       + to_str(real_ind.GetLength())
                       + " row or column indices.");
      }

    if (imag_ind.GetLength() != imag_nz_)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::SetData(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("There are ") + to_str(imag_nz_)
                       + " values (imaginary part) but "
                       + to_str(imag_ind.GetLength())
                       + " row or column indices.");
      }

    if (real_ptr.GetLength() - 1 != i)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::SetData(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("The vector of start indices (real part)")
                       + " contains " + to_str(real_ptr.GetLength() - 1)
                       + string(" row or column start indices (plus the")
                       + " number of non-zero entries) but there are "
                       + to_str(i) + " rows or columns ("
                       + to_str(i) + " by " + to_str(i) + " matrix).");
      }

    if (imag_ptr.GetLength() - 1 != i)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::SetData(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("The vector of start indices (imaginary part)")
                       + " contains " + to_str(imag_ptr.GetLength()-1)
                       + string(" row or column start indices (plus the")
                       + " number of non-zero entries) but there are "
                       + to_str(i) + " rows or columns ("
                       + to_str(i) + " by " + to_str(i) + " matrix).");
      }

    if ( (static_cast<long int>(2 * real_nz_ - 2) / static_cast<long int>(i)
          >= static_cast<long int>(i + 1)) ||
         (static_cast<long int>(2 * imag_nz_ - 2) / static_cast<long int>(i)
          >= static_cast<long int>(i + 1)) )
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::SetData(int, int, ")
                       + string("const Vector&, const Vector&, const Vector&")
                       + ", const Vector&, const Vector&, const Vector&)",
                       string("There are more values (")
                       + to_str(real_values.GetLength())
                       + " values for the real part and "
                       + to_str(real_values.GetLength()) + string(" values")
                       + string(" for the imaginary part) than elements in")
                       + " the matrix (" + to_str(i)
                       + " by " + to_str(i) + ").");
      }
#endif

    this->real_ptr_ = real_ptr.GetData();
    this->imag_ptr_ = imag_ptr.GetData();
    this->real_ind_ = real_ind.GetData();
    this->imag_ind_ = imag_ind.GetData();
    this->real_data_ = real_values.GetData();
    this->imag_data_ = imag_values.GetData();

    real_ptr.Nullify();
    imag_ptr.Nullify();
    real_ind.Nullify();
    imag_ind.Nullify();
    real_values.Nullify();
    imag_values.Nullify();
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  SetData(int i, int j, int real_nz,
          typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
          ::pointer real_values,
          int* real_ptr, int* real_ind, int imag_nz,
          typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
          ::pointer imag_values,
          int* imag_ptr, int* imag_ind)
  {
    this->Clear();

    this->m_ = i;
    this->n_ = i;

    this->real_nz_ = real_nz;
    this->imag_nz_ = imag_nz;

    real_data_ = real_values;
    imag_data_ = imag_values;
    real_ind_ = real_ind;
    imag_ind_ = imag_ind;
    real_ptr_ = real_ptr;
    imag_ptr_ = imag_ptr;
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::Nullify()
  {
    this->data_ = NULL;
    this->m_ = 0;
    this->n_ = 0;
    real_nz_ = 0;
    real_ptr_ = NULL;
    real_ind_ = NULL;
    imag_nz_ = 0;
    imag_ptr_ = NULL;
    imag_ind_ = NULL;
    real_data_ = NULL;
    imag_data_ = NULL;
  }


  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Reallocate(int i, int j)
  {
    // previous entries are removed
    Clear();

    this->m_ = i;
    this->n_ = i;

    // we try to allocate real_ptr_ and imag_ptr_
#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        real_ptr_ = reinterpret_cast<int*>(calloc(i+1, sizeof(int)));

        imag_ptr_ = reinterpret_cast<int*>(calloc(i+1, sizeof(int)));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        real_ptr_ = NULL;
        real_ind_ = NULL;
        imag_nz_ = 0;
        imag_ptr_ = NULL;
        imag_ind_ = NULL;
        real_data_ = NULL;
        imag_data_ = NULL;
      }
    if ((real_ptr_ == NULL) || (imag_ptr_ == NULL))
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        real_ptr_ = NULL;
        real_ind_ = NULL;
        imag_nz_ = 0;
        imag_ptr_ = NULL;
        imag_ind_ = NULL;
        real_data_ = NULL;
        imag_data_ = NULL;
      }
    if (((real_ptr_ == NULL) || (imag_ptr_ == NULL)) && i != 0 && j != 0)
      throw NoMemory("Matrix_SymComplexSparse::Reallocate(int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * (i+1) )
                     + " bytes to store " + to_str(i+1)
                     + " row or column start indices, for a "
                     + to_str(i) + " by " + to_str(j) + " matrix.");
#endif

    // then filing real_ptr_ with 0
    for (int k = 0; k <= i; k++)
      {
        real_ptr_[k] = 0;
        imag_ptr_[k] = 0;
      }
  }


  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Reallocate(int i, int j, int real_nz, int imag_nz)
  {
    // previous entries are removed
    Clear();

    this->m_ = i;
    this->n_ = j;
    this->real_nz_ = real_nz;
    this->imag_nz_ = imag_nz;

#ifdef SELDON_CHECK_DIMENSIONS
    if ( (static_cast<long int>(2 * real_nz_ - 2) / static_cast<long int>(i+1)
          >= static_cast<long int>(i)) ||
         (static_cast<long int>(2 * imag_nz_ - 2) / static_cast<long int>(i+1)
          >= static_cast<long int>(i)) )
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + "Matrix_SymComplexSparse(int, int, int, int)",
                       string("There are more values to be stored (")
                       + to_str(real_nz) + " values for the real part and "
                       + to_str(imag_nz) + string(" values for the imaginary")
                       + " part) than elements in the matrix ("
                       + to_str(i) + " by " + to_str(j) + ").");
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        real_ptr_ = reinterpret_cast<int*>(calloc(i + 1, sizeof(int)));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ptr_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        imag_ptr_ = 0;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ptr_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * (i + 1)) + " bytes to store "
                     + to_str(i + 1) + string(" row or column")
                     + " start indices (for the real part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        imag_ptr_ = reinterpret_cast<int*>(calloc(i + 1, sizeof(int)));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (imag_ptr_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        real_ptr_ = 0;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (imag_ptr_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * (i + 1) ) + " bytes to store "
                     + to_str(i + 1) + string(" row or column")
                     + " start indices (for the imaginary part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        real_ind_ = reinterpret_cast<int*>(calloc(real_nz_, sizeof(int)));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ind_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ind_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * real_nz) + " bytes to store "
                     + to_str(real_nz)
                     + " row or column indices (real part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        imag_ind_ = reinterpret_cast<int*>( calloc(imag_nz_, sizeof(int)) );

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ind_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(imag_ind_);
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (imag_ind_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * imag_nz) + " bytes to store "
                     + to_str(imag_nz)
                     + " row or column indices (imaginary part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        this->real_data_ = this->allocator_.allocate(real_nz_, this);

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_data_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        imag_data_ = NULL;
      }
    if (real_data_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * real_nz) + " bytes to store "
                     + to_str(real_nz) + " values (real part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        this->imag_data_ = this->allocator_.allocate(imag_nz_, this);

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->allocator_.deallocate(this->real_data_, real_nz_);
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_data_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->allocator_.deallocate(this->real_data_, real_nz_);
        real_data_ = NULL;
      }
    if (imag_data_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * imag_nz) + " bytes to store "
                     + to_str(imag_nz) + " values (imaginary part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Resize(int i, int j)
  {
    if (i < this->m_)
      Resize(i, i, real_ptr_[i], imag_ptr_[i]);
    else
      Resize(i, i, real_nz_, imag_nz_);
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Resize(int i, int j, int real_nz, int imag_nz)
  {
#ifdef SELDON_CHECK_DIMENSIONS
    if (real_nz < 0 || imag_nz < 0)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + "Resize(int, int, int, int)",
                       "Invalid number of non-zero elements: "
                       + to_str(real_nz) + " in the real part and "
                       + to_str(imag_nz) + " in the imaginary part.");
      }
    if ((real_nz > 0
         && (j == 0
             || static_cast<long int>(real_nz-1) / static_cast<long int>(j)
             >= static_cast<long int>(i)))
        ||
        (imag_nz > 0
         && (j == 0
             || static_cast<long int>(imag_nz-1) / static_cast<long int>(j)
             >= static_cast<long int>(i))))
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + "Resize(int, int, int, int)",
                       string("There are more values (") + to_str(real_nz)
                       + " values for the real part and " + to_str(imag_nz)
                       + string(" values for the imaginary part) than")
                       + " elements in the matrix (" + to_str(i) + " by "
                       + to_str(j) + ").");
      }
#endif

    if (this->m_ != i)
      {
#ifdef SELDON_CHECK_MEMORY
        try
          {
#endif

            real_ptr_
              = reinterpret_cast<int*>( realloc(real_ptr_,
                                                (i+1)*sizeof(int)) );

#ifdef SELDON_CHECK_MEMORY
          }
        catch (...)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            real_ptr_ = NULL;
            imag_ptr_ = NULL;
            real_ind_ = NULL;
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (real_ptr_ == NULL)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            imag_ptr_ = 0;
            real_ind_ = NULL;
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (real_ptr_ == NULL && i != 0 && j != 0)
          throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Resize(int, int, int, int)",
                         string("Unable to allocate ")
                         + to_str(sizeof(int) * (i+1))
                         + " bytes to store " + to_str(i+1)
                         + string(" row or column start indices (for the real")
                         + " part), for a "
                         + to_str(i) + " by " + to_str(j) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
        try
          {
#endif

            imag_ptr_
              = reinterpret_cast<int*>( realloc(imag_ptr_,
                                                (i+1)*sizeof(int)) );

#ifdef SELDON_CHECK_MEMORY
          }
        catch (...)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            free(real_ptr_);
            real_ptr_ = NULL;
            imag_ptr_ = NULL;
            real_ind_ = NULL;
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (imag_ptr_ == NULL)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            free(real_ptr_);
            real_ptr_ = 0;
            real_ind_ = NULL;
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (imag_ptr_ == NULL && i != 0 && j != 0)
          throw NoMemory(string("Matrix_SymComplexSparse::")
                         + "Resize(int, int, int, int)",
                         string("Unable to allocate ")
                         + to_str(sizeof(int) * (i+1))
                         + " bytes to store " + to_str(i+1)
                         + string(" row or column start indices (for the")
                         + string(" imaginary part), for a ")
                         + to_str(i) + " by " + to_str(j) + " matrix.");
#endif
      }

    if (real_nz != real_nz_)
      {
#ifdef SELDON_CHECK_MEMORY
        try
          {
#endif

            real_ind_
              = reinterpret_cast<int*>( realloc(real_ind_,
                                                real_nz*sizeof(int)) );

#ifdef SELDON_CHECK_MEMORY
          }
        catch (...)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            free(real_ptr_);
            free(imag_ptr_);
            real_ptr_ = NULL;
            imag_ptr_ = NULL;
            real_ind_ = NULL;
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (real_ind_ == NULL)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            free(real_ptr_);
            free(imag_ptr_);
            real_ptr_ = NULL;
            imag_ptr_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (real_ind_ == NULL && i != 0 && j != 0)
          throw NoMemory(string("Matrix_SymComplexSparse::")
                         + "Resize(int, int, int, int)",
                         string("Unable to allocate ")
                         + to_str(sizeof(int) * real_nz)
                         + " bytes to store " + to_str(real_nz)
                         + " row or column indices (real part), for a "
                         + to_str(i) + " by " + to_str(j) + " matrix.");
#endif
      }

    if (imag_nz != imag_nz_)
      {
#ifdef SELDON_CHECK_MEMORY
        try
          {
#endif

            imag_ind_
              = reinterpret_cast<int*>( realloc(imag_ind_,
                                                imag_nz*sizeof(int)) );

#ifdef SELDON_CHECK_MEMORY
          }
        catch (...)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            free(real_ptr_);
            free(imag_ptr_);
            real_ptr_ = NULL;
            imag_ptr_ = NULL;
            free(imag_ind_);
            real_ind_ = NULL;
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (real_ind_ == NULL)
          {
            this->m_ = 0;
            this->n_ = 0;
            real_nz_ = 0;
            imag_nz_ = 0;
            free(real_ptr_);
            free(imag_ptr_);
            real_ptr_ = NULL;
            imag_ptr_ = NULL;
            free(imag_ind_);
            imag_ind_ = NULL;
            this->real_data_ = NULL;
            this->imag_data_ = NULL;
          }
        if (imag_ind_ == NULL && i != 0 && j != 0)
          throw NoMemory(string("Matrix_SymComplexSparse::")
                         + "Resize(int, int, int, int)",
                         string("Unable to allocate ")
                         + to_str(sizeof(int) * imag_nz)
                         + " bytes to store " + to_str(imag_nz)
                         + " row or column indices (imaginary part), for a "
                         + to_str(i) + " by " + to_str(j) + " matrix.");
#endif
      }

    if (real_nz != real_nz_)
      {
        Vector<T, VectFull, Allocator> val;
        val.SetData(real_nz_, real_data_);
        val.Resize(real_nz);

        real_data_ = val.GetData();
        val.Nullify();
      }

    if (imag_nz != imag_nz_)
      {
        Vector<T, VectFull, Allocator> val;
        val.SetData(imag_nz_, imag_data_);
        val.Resize(imag_nz);

        imag_data_ = val.GetData();
        val.Nullify();
      }

    // then filing last values of ptr_ with nz_
    for (int k = this->m_; k <= i; k++)
      {
        real_ptr_[k] = real_nz_;
        imag_ptr_[k] = imag_nz_;
      }

    this->m_ = i;
    this->n_ = i;
    real_nz_ = real_nz;
    imag_nz_ = imag_nz;
  }


  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  Copy(const Matrix_SymComplexSparse<T, Prop, Storage, Allocator>& A)
  {
    this->Clear();
    int i = A.m_;
    int j = A.n_;
    real_nz_ = A.real_nz_;
    imag_nz_ = A.imag_nz_;
    this->m_ = i;
    this->n_ = j;
    if ((i == 0)||(j == 0))
      {
        this->m_ = 0;
        this->n_ = 0;
        this->real_nz_ = 0;
        this->imag_nz_ = 0;
        return;
      }

#ifdef SELDON_CHECK_DIMENSIONS
    if ( (static_cast<long int>(2 * real_nz_ - 2) / static_cast<long int>(i+1)
          >= static_cast<long int>(i)) ||
         (static_cast<long int>(2 * imag_nz_ - 2) / static_cast<long int>(i+1)
          >= static_cast<long int>(i)) )
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
        throw WrongDim(string("Matrix_SymComplexSparse::")
                       + "Matrix_SymComplexSparse(int, int, int, int)",
                       string("There are more values to be stored (")
                       + to_str(real_nz_) + " values for the real part and "
                       + to_str(imag_nz_) + string(" values for the imaginary")
                       + " part) than elements in the matrix ("
                       + to_str(i) + " by " + to_str(j) + ").");
      }
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        real_ptr_ = reinterpret_cast<int*>( calloc(i + 1, sizeof(int)) );
        memcpy(this->real_ptr_, A.real_ptr_, (i + 1) * sizeof(int));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ptr_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        imag_ptr_ = 0;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ptr_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * (i + 1)) + " bytes to store "
                     + to_str(i + 1) + string(" row or column")
                     + " start indices (for the real part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        imag_ptr_ = reinterpret_cast<int*>( calloc(i + 1, sizeof(int)) );
        memcpy(this->imag_ptr_, A.imag_ptr_, (i + 1) * sizeof(int));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (imag_ptr_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        real_ptr_ = 0;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (imag_ptr_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * (i + 1) ) + " bytes to store "
                     + to_str(i + 1) + string(" row or column")
                     + " start indices (for the imaginary part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        real_ind_ = reinterpret_cast<int*>( calloc(real_nz_, sizeof(int)) );
        memcpy(this->real_ind_, A.real_ind_, real_nz_ * sizeof(int));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ind_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ind_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * real_nz_) + " bytes to store "
                     + to_str(real_nz_)
                     + " row or column indices (real part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        imag_ind_ = reinterpret_cast<int*>( calloc(imag_nz_, sizeof(int)) );
        memcpy(this->imag_ind_, A.imag_ind_, imag_nz_ * sizeof(int));

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_ind_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        real_nz_ = 0;
        imag_nz_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(imag_ind_);
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (imag_ind_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * imag_nz_) + " bytes to store "
                     + to_str(imag_nz_)
                     + " row or column indices (imaginary part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        this->real_data_ = this->allocator_.allocate(real_nz_, this);
        this->allocator_.memorycpy(this->real_data_, A.real_data_, real_nz_);

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_data_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        imag_data_ = NULL;
      }
    if (real_data_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * real_nz_) + " bytes to store "
                     + to_str(real_nz_) + " values (real part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

#ifdef SELDON_CHECK_MEMORY
    try
      {
#endif

        this->imag_data_ = this->allocator_.allocate(imag_nz_, this);
        this->allocator_.memorycpy(this->imag_data_, A.imag_data_, imag_nz_);

#ifdef SELDON_CHECK_MEMORY
      }
    catch (...)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->allocator_.deallocate(this->real_data_, real_nz_);
        this->real_data_ = NULL;
        this->imag_data_ = NULL;
      }
    if (real_data_ == NULL)
      {
        this->m_ = 0;
        this->n_ = 0;
        free(real_ptr_);
        free(imag_ptr_);
        real_ptr_ = NULL;
        imag_ptr_ = NULL;
        free(real_ind_);
        free(imag_ind_);
        real_ind_ = NULL;
        imag_ind_ = NULL;
        this->allocator_.deallocate(this->real_data_, real_nz_);
        real_data_ = NULL;
      }
    if (imag_data_ == NULL && i != 0)
      throw NoMemory(string("Matrix_SymComplexSparse::")
                     + "Matrix_SymComplexSparse(int, int, int, int)",
                     string("Unable to allocate ")
                     + to_str(sizeof(int) * imag_nz_) + " bytes to store "
                     + to_str(imag_nz_) + " values (imaginary part), for a "
                     + to_str(i) + " by " + to_str(i) + " matrix.");
#endif

  }


  /*******************
   * BASIC FUNCTIONS *
   *******************/



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetDataSize() const
  {
    return real_nz_ + imag_nz_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int* Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetRealPtr() const
  {
    return real_ptr_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int* Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetImagPtr() const
  {
    return imag_ptr_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int* Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetRealInd() const
  {
    return real_ind_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int* Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetImagInd() const
  {
    return imag_ind_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetRealPtrSize() const
  {
    return (this->m_ + 1);
  }



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetImagPtrSize() const
  {
    return (this->m_ + 1);
  }



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetRealIndSize() const
  {
    return real_nz_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetImagIndSize() const
  {
    return imag_nz_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetRealDataSize() const
  {
    return real_nz_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  int Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::GetImagDataSize() const
  {
    return imag_nz_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  T* Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::GetRealData() const
  {
    return real_data_;
  }



  template <class T, class Prop, class Storage, class Allocator>
  T* Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::GetImagData() const
  {
    return imag_data_;
  }


  /**********************************
   * ELEMENT ACCESS AND AFFECTATION *
   **********************************/



  template <class T, class Prop, class Storage, class Allocator>
  inline complex<typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
                 ::value_type>
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::operator() (int i, int j) const
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::operator()",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::operator()",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int real_k, imag_k, l;
    int real_a, real_b;
    int imag_a, imag_b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    real_a = real_ptr_[Storage::GetFirst(i, j)];
    real_b = real_ptr_[Storage::GetFirst(i, j) + 1];

    imag_a = imag_ptr_[Storage::GetFirst(i, j)];
    imag_b = imag_ptr_[Storage::GetFirst(i, j) + 1];

    if (real_a != real_b)
      {
        l = Storage::GetSecond(i, j);
        for (real_k = real_a;
             (real_k < real_b - 1) && (real_ind_[real_k] < l);
             real_k++);
        if (imag_a != imag_b)
          {
            for (imag_k = imag_a;
                 (imag_k < imag_b - 1) && (imag_ind_[imag_k] < l);
                 imag_k++);
            if (real_ind_[real_k] == l)
              {
                if (imag_ind_[imag_k] == l)
                  return complex<T>(real_data_[real_k], imag_data_[imag_k]);
                else
                  return complex<T>(real_data_[real_k], T(0));
              }
            else
              if (imag_ind_[imag_k] == l)
                return complex<T>(T(0), imag_data_[imag_k]);
              else
                return complex<T>(T(0), T(0));
          }
        else
          {
            if (real_ind_[real_k] == l)
              return complex<T>(real_data_[real_k], T(0));
            else
              return complex<T>(T(0), T(0));
          }
      }
    else
      {
        if (imag_a != imag_b)
          {
            l = Storage::GetSecond(i, j);
            for (imag_k = imag_a;
                 (imag_k < imag_b - 1) && (imag_ind_[imag_k] < l);
                 imag_k++);
            if (imag_ind_[imag_k] == l)
              return complex<T>(T(0), imag_data_[imag_k]);
            else
              return complex<T>(T(0), T(0));
          }
        else
          return complex<T>(T(0), T(0));
      }
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::ValReal(int i, int j)
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::ValReal(int, int)",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::ValReal(int, int)",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int k, l;
    int a, b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    a = real_ptr_[Storage::GetFirst(i, j)];
    b = real_ptr_[Storage::GetFirst(i, j) + 1];

    if (a == b)
      throw WrongArgument("Matrix_SymComplexSparse::ValReal(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");

    l = Storage::GetSecond(i, j);

    for (k = a; (k < b-1) && (real_ind_[k] < l); k++);

    if (real_ind_[k] == l)
      return this->real_data_[k];
    else
      throw WrongArgument("Matrix_SymComplexSparse::ValReal(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline const typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::ValReal(int i, int j) const
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::ValReal(int, int)",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::ValReal(int, int)",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int k, l;
    int a, b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    a = real_ptr_[Storage::GetFirst(i, j)];
    b = real_ptr_[Storage::GetFirst(i, j) + 1];

    if (a == b)
      throw WrongArgument("Matrix_SymComplexSparse::ValReal(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");

    l = Storage::GetSecond(i, j);

    for (k = a; (k < b-1) && (real_ind_[k] < l); k++);

    if (real_ind_[k] == l)
      return this->real_data_[k];
    else
      throw WrongArgument("Matrix_SymComplexSparse::ValReal(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::ValImag(int i, int j)
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::ValImag(int, int)",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::ValImag(int, int)",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int k, l;
    int a, b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    a = imag_ptr_[Storage::GetFirst(i, j)];
    b = imag_ptr_[Storage::GetFirst(i, j) + 1];

    if (a == b)
      throw WrongArgument("Matrix_SymComplexSparse::ValImag(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");

    l = Storage::GetSecond(i, j);

    for (k = a; (k < b-1) && (imag_ind_[k] < l); k++);

    if (imag_ind_[k] == l)
      return this->imag_data_[k];
    else
      throw WrongArgument("Matrix_SymComplexSparse::ValImag(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline const typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::ValImag(int i, int j) const
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::ValImag(int, int)",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::ValImag(int, int)",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int k, l;
    int a, b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    a = imag_ptr_[Storage::GetFirst(i, j)];
    b = imag_ptr_[Storage::GetFirst(i, j) + 1];

    if (a == b)
      throw WrongArgument("Matrix_SymComplexSparse::ValImag(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");

    l = Storage::GetSecond(i, j);

    for (k = a; (k < b-1) && (imag_ind_[k] < l); k++);

    if (imag_ind_[k] == l)
      return this->imag_data_[k];
    else
      throw WrongArgument("Matrix_SymComplexSparse::ValImag(int, int)",
                          "No reference to element (" + to_str(i) + ", "
                          + to_str(j)
                          + ") can be returned: it is a zero entry.");
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::GetReal(int i, int j)
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::GetReal(int, int)",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::GetReal(int, int)",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int k, l;
    int a, b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    a = real_ptr_[Storage::GetFirst(i, j)];
    b = real_ptr_[Storage::GetFirst(i, j) + 1];

    if (a < b)
      {
        l = Storage::GetSecond(i, j);

        for (k = a; (k < b) && (real_ind_[k] < l); k++);

        if ( (k < b) && (real_ind_[k] == l))
          return this->real_data_[k];
      }
    else
      k = a;

    // adding a non-zero entry
    Resize(this->m_, this->n_, real_nz_+1, imag_nz_);

    for (int m = Storage::GetFirst(i, j)+1;
         m <= Storage::GetFirst(this->m_, this->n_); m++)
      real_ptr_[m]++;

    for (int m = real_nz_-1; m >= k+1; m--)
      {
        real_ind_[m] = real_ind_[m-1];
        this->real_data_[m] = this->real_data_[m-1];
      }

    real_ind_[k] = Storage::GetSecond(i, j);

    // value of new non-zero entry is set to 0
    SetComplexZero(this->real_data_[k]);

    return this->real_data_[k];
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline const typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::GetReal(int i, int j) const
  {
    return ValReal(i, j);
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::GetImag(int i, int j)
  {

#ifdef SELDON_CHECK_BOUNDS
    if (i < 0 || i >= this->m_)
      throw WrongRow("Matrix_SymComplexSparse::GetImag(int, int)",
                     string("Index should be in [0, ") + to_str(this->m_-1)
                     + "], but is equal to " + to_str(i) + ".");
    if (j < 0 || j >= this->n_)
      throw WrongCol("Matrix_SymComplexSparse::GetImag(int, int)",
                     string("Index should be in [0, ") + to_str(this->n_-1)
                     + "], but is equal to " + to_str(j) + ".");
#endif

    int k, l;
    int a, b;

    // Only the upper part is stored.
    if (i > j)
      {
        l = i;
        i = j;
        j = l;
      }

    a = imag_ptr_[Storage::GetFirst(i, j)];
    b = imag_ptr_[Storage::GetFirst(i, j) + 1];

    if (a < b)
      {
        l = Storage::GetSecond(i, j);

        for (k = a; (k < b) && (imag_ind_[k] < l); k++);

        if ( (k < b) && (imag_ind_[k] == l))
          return this->imag_data_[k];
      }
    else
      k = a;

    // adding a non-zero entry
    Resize(this->m_, this->n_, real_nz_, imag_nz_+1);

    for (int m = Storage::GetFirst(i, j)+1;
         m <= Storage::GetFirst(this->m_, this->n_); m++)
      imag_ptr_[m]++;

    for (int m = imag_nz_-1; m >= k+1; m--)
      {
        imag_ind_[m] = imag_ind_[m-1];
        this->imag_data_[m] = this->imag_data_[m-1];
      }

    imag_ind_[k] = Storage::GetSecond(i, j);

    // value of new non-zero entry is set to 0
    SetComplexZero(this->imag_data_[k]);

    return this->imag_data_[k];
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline const typename Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::value_type&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::GetImag(int i, int j) const
  {
    return ValImag(i, j);
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::AddInteraction(int i, int j, const complex<T>& val)
  {
    if (i <= j)
      {
        if (real(val) != T(0))
          GetReal(i, j) += real(val);

        if (imag(val) != T(0))
          GetImag(i, j) += imag(val);
      }
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Set(int i, int j, const complex<T>& val)
  {
    GetReal(i, j) = real(val);
    GetImag(i, j) = imag(val);
  }



  template <class T, class Prop, class Storage, class Allocator>
  inline Matrix_SymComplexSparse<T, Prop, Storage, Allocator>&
  Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::operator= (const Matrix_SymComplexSparse<T, Prop, Storage, Allocator>& A)
  {
    this->Copy(A);

    return *this;
  }


  /************************
   * CONVENIENT FUNCTIONS *
   ************************/



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::Zero()
  {
    this->allocator_.memoryset(this->real_data_, char(0),
                               this->real_nz_ * sizeof(value_type));

    this->allocator_.memoryset(this->imag_data_, char(0),
                               this->imag_nz_ * sizeof(value_type));
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::SetIdentity()
  {
    int m = this->m_;
    int n = this->n_;
    int nz = min(m, n);

    if (nz == 0)
      return;

    Clear();

    Vector<T, VectFull, Allocator> real_values(nz), imag_values;
    Vector<int, VectFull, CallocAlloc<int> > real_ptr(m + 1);
    Vector<int, VectFull, CallocAlloc<int> > real_ind(nz);
    Vector<int, VectFull, CallocAlloc<int> > imag_ptr(real_ptr);
    Vector<int, VectFull, CallocAlloc<int> > imag_ind;

    real_values.Fill(T(1));
    real_ind.Fill();
    imag_ind.Zero();
    real_ptr.Fill();

    SetData(m, n, real_values, real_ptr, real_ind,
            imag_values, imag_ptr, imag_ind);
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::Fill()
  {
    for (int i = 0; i < this->real_nz_; i++)
      this->real_data_[i] = i;

    for (int i = 0; i < this->imag_nz_; i++)
      this->imag_data_[i] = T(0);
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Fill(const complex<T>& x)
  {
    for (int i = 0; i < this->real_nz_; i++)
      this->real_data_[i] = real(x);

    for (int i = 0; i < this->imag_nz_; i++)
      this->imag_data_[i] = imag(x);
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::FillRand()
  {
    srand(time(NULL));
    for (int i = 0; i < this->real_nz_; i++)
      this->real_data_[i] = rand();

    for (int i = 0; i < this->imag_nz_; i++)
      this->imag_data_[i] = rand();
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::Print() const
  {
    for (int i = 0; i < this->m_; i++)
      {
        for (int j = 0; j < this->n_; j++)
          cout << (*this)(i, j) << "\t";
        cout << endl;
      }
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Write(string FileName) const
  {
    ofstream FileStream;
    FileStream.open(FileName.c_str());

#ifdef SELDON_CHECK_IO
    // Checks if the file was opened.
    if (!FileStream.is_open())
      throw IOError("Matrix_SymComplexSparse::Write(string FileName)",
                    string("Unable to open file \"") + FileName + "\".");
#endif

    this->Write(FileStream);

    FileStream.close();
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Write(ostream& FileStream) const
  {
#ifdef SELDON_CHECK_IO
    // Checks if the stream is ready.
    if (!FileStream.good())
      throw IOError("Matrix_SymComplexSparse::Write(ofstream& FileStream)",
                    "Stream is not ready.");
#endif

    FileStream.write(reinterpret_cast<char*>(const_cast<int*>(&this->m_)),
                     sizeof(int));
    FileStream.write(reinterpret_cast<char*>(const_cast<int*>(&this->n_)),
                     sizeof(int));
    FileStream.write(reinterpret_cast<char*>(const_cast<int*>(&this->real_nz_)),
                     sizeof(int));
    FileStream.write(reinterpret_cast<char*>(const_cast<int*>(&this->imag_nz_)),
                     sizeof(int));

    FileStream.write(reinterpret_cast<char*>(this->real_ptr_),
                     sizeof(int)*(Storage::GetFirst(this->m_, this->n_)+1));
    FileStream.write(reinterpret_cast<char*>(this->real_ind_),
                     sizeof(int)*this->real_nz_);
    FileStream.write(reinterpret_cast<char*>(this->real_data_),
                     sizeof(T)*this->real_nz_);

    FileStream.write(reinterpret_cast<char*>(this->imag_ptr_),
                     sizeof(int)*(Storage::GetFirst(this->m_, this->n_)+1));
    FileStream.write(reinterpret_cast<char*>(this->imag_ind_),
                     sizeof(int)*this->imag_nz_);
    FileStream.write(reinterpret_cast<char*>(this->imag_data_),
                     sizeof(T)*this->imag_nz_);
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  WriteText(string FileName) const
  {
    ofstream FileStream; FileStream.precision(14);
    FileStream.open(FileName.c_str());

#ifdef SELDON_CHECK_IO
    // Checks if the file was opened.
    if (!FileStream.is_open())
      throw IOError("Matrix_SymComplexSparse::Write(string FileName)",
                    string("Unable to open file \"") + FileName + "\".");
#endif

    this->WriteText(FileStream);

    FileStream.close();
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  WriteText(ostream& FileStream) const
  {

#ifdef SELDON_CHECK_IO
    // Checks if the stream is ready.
    if (!FileStream.good())
      throw IOError("Matrix_SymComplexSparse::Write(ofstream& FileStream)",
                    "Stream is not ready.");
#endif

    // conversion in coordinate format (1-index convention)
    IVect IndRow, IndCol; Vector<complex<T> > Value;
    const Matrix<T, Prop, Storage, Allocator>& leaf_class =
      static_cast<const Matrix<T, Prop, Storage, Allocator>& >(*this);

    ConvertMatrix_to_Coordinates(leaf_class, IndRow, IndCol,
                                 Value, 1, true);

    for (int i = 0; i < IndRow.GetM(); i++)
      FileStream << IndRow(i) << " " << IndCol(i) << " " << Value(i) << '\n';

  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>::
  Read(string FileName)
  {
    ifstream FileStream;
    FileStream.open(FileName.c_str());

#ifdef SELDON_CHECK_IO
    // Checks if the file was opened.
    if (!FileStream.is_open())
      throw IOError("Matrix_SymComplexSparse::Read(string FileName)",
                    string("Unable to open file \"") + FileName + "\".");
#endif

    this->Read(FileStream);

    FileStream.close();
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::Read(istream& FileStream)
  {

#ifdef SELDON_CHECK_IO
    // Checks if the stream is ready.
    if (!FileStream.good())
      throw IOError("Matrix_SymComplexSparse::Read(istream& FileStream)",
                    "Stream is not ready.");
#endif

    int m, n, real_nz, imag_nz;
    FileStream.read(reinterpret_cast<char*>(&m), sizeof(int));
    FileStream.read(reinterpret_cast<char*>(&n), sizeof(int));
    FileStream.read(reinterpret_cast<char*>(&real_nz), sizeof(int));
    FileStream.read(reinterpret_cast<char*>(&imag_nz), sizeof(int));

    Reallocate(m, n, real_nz, imag_nz);

    FileStream.read(reinterpret_cast<char*>(real_ptr_),
                    sizeof(int)*(Storage::GetFirst(m, n)+1));
    FileStream.read(reinterpret_cast<char*>(real_ind_), sizeof(int)*real_nz);
    FileStream.read(reinterpret_cast<char*>(this->real_data_), sizeof(T)*real_nz);

    FileStream.read(reinterpret_cast<char*>(imag_ptr_),
                    sizeof(int)*(Storage::GetFirst(m, n)+1));
    FileStream.read(reinterpret_cast<char*>(imag_ind_), sizeof(int)*imag_nz);
    FileStream.read(reinterpret_cast<char*>(this->imag_data_), sizeof(T)*imag_nz);

#ifdef SELDON_CHECK_IO
    // Checks if data was read.
    if (!FileStream.good())
      throw IOError("Matrix_SymComplexSparse::Read(istream& FileStream)",
                    string("Input operation failed.")
                    + string(" The input file may have been removed")
                    + " or may not contain enough data.");
#endif

  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::ReadText(string FileName)
  {
    ifstream FileStream;
    FileStream.open(FileName.c_str());

#ifdef SELDON_CHECK_IO
    // Checks if the file was opened.
    if (!FileStream.is_open())
      throw IOError("Matrix_SymComplexSparse::ReadText(string FileName)",
                    string("Unable to open file \"") + FileName + "\".");
#endif

    this->ReadText(FileStream);

    FileStream.close();
  }



  template <class T, class Prop, class Storage, class Allocator>
  void Matrix_SymComplexSparse<T, Prop, Storage, Allocator>
  ::ReadText(istream& FileStream)
  {
    Matrix<T, Prop, Storage, Allocator>& leaf_class =
      static_cast<Matrix<T, Prop, Storage, Allocator>& >(*this);

    complex<T> zero; int index = 1;
    ReadCoordinateMatrix(leaf_class, FileStream, zero, index);
  }


  // MATRIX<COLSYMCOMPLEXSPARSE> //


  /****************
   * CONSTRUCTORS *
   ****************/


  template <class T, class Prop, class Allocator>
  Matrix<T, Prop, ColSymComplexSparse, Allocator>::Matrix():
    Matrix_SymComplexSparse<T, Prop, ColSymComplexSparse, Allocator>()
  {
  }



  template <class T, class Prop, class Allocator>
  Matrix<T, Prop, ColSymComplexSparse, Allocator>
  ::Matrix(int i, int j):
    Matrix_SymComplexSparse<T, Prop, ColSymComplexSparse, Allocator>(i, j,
                                                                     0, 0)
  {
  }



  template <class T, class Prop, class Allocator>
  Matrix<T, Prop, ColSymComplexSparse, Allocator>::Matrix(int i, int j,
                                                          int real_nz,
                                                          int imag_nz):
    Matrix_SymComplexSparse<T, Prop,
    ColSymComplexSparse, Allocator>(i, j,
                                    real_nz, imag_nz)
  {
  }



  template <class T, class Prop, class Allocator>
  template <class Storage0, class Allocator0,
            class Storage1, class Allocator1,
            class Storage2, class Allocator2>
  Matrix<T, Prop, ColSymComplexSparse, Allocator>::
  Matrix(int i, int j,
         Vector<T, Storage0, Allocator0>& real_values,
         Vector<int, Storage1, Allocator1>& real_ptr,
         Vector<int, Storage2, Allocator2>& real_ind,
         Vector<T, Storage0, Allocator0>& imag_values,
         Vector<int, Storage1, Allocator1>& imag_ptr,
         Vector<int, Storage2, Allocator2>& imag_ind):
    Matrix_SymComplexSparse<T, Prop,
    ColSymComplexSparse, Allocator>(i, j,
                                    real_values,
                                    real_ptr,
                                    real_ind,
                                    imag_values,
                                    imag_ptr,
                                    imag_ind)
  {
  }



  // MATRIX<ROWSYMCOMPLEXSPARSE> //


  /****************
   * CONSTRUCTORS *
   ****************/


  template <class T, class Prop, class Allocator>
  Matrix<T, Prop, RowSymComplexSparse, Allocator>::Matrix():
    Matrix_SymComplexSparse<T, Prop, RowSymComplexSparse, Allocator>()
  {
  }



  template <class T, class Prop, class Allocator>
  Matrix<T, Prop, RowSymComplexSparse, Allocator>
  ::Matrix(int i, int j):
    Matrix_SymComplexSparse<T, Prop, RowSymComplexSparse, Allocator>(i, j,
                                                                     0, 0)
  {
  }


  template <class T, class Prop, class Allocator>
  Matrix<T, Prop, RowSymComplexSparse, Allocator>
  ::Matrix(int i, int j, int real_nz, int imag_nz):
    Matrix_SymComplexSparse<T, Prop, RowSymComplexSparse, Allocator>(i, j,
                                                                     real_nz,
                                                                     imag_nz)
  {
  }



  template <class T, class Prop, class Allocator>
  template <class Storage0, class Allocator0,
            class Storage1, class Allocator1,
            class Storage2, class Allocator2>
  Matrix<T, Prop, RowSymComplexSparse, Allocator>::
  Matrix(int i, int j,
         Vector<T, Storage0, Allocator0>& real_values,
         Vector<int, Storage1, Allocator1>& real_ptr,
         Vector<int, Storage2, Allocator2>& real_ind,
         Vector<T, Storage0, Allocator0>& imag_values,
         Vector<int, Storage1, Allocator1>& imag_ptr,
         Vector<int, Storage2, Allocator2>& imag_ind):
    Matrix_SymComplexSparse<T, Prop,
    RowSymComplexSparse, Allocator>(i, j,
                                    real_values,
                                    real_ptr,
                                    real_ind,
                                    imag_values,
                                    imag_ptr,
                                    imag_ind)
  {
  }


} // namespace Seldon.

#define SELDON_FILE_MATRIX_SYMCOMPLEXSPARSE_CXX
#endif