IpTransposeMatrix.hpp

Go to the documentation of this file.

// Copyright (C) 2008 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// $Id: IpTransposeMatrix.hpp 2269 2013-05-05 11:32:40Z stefan $
//
// Authors:  Andreas Waechter              IBM    2008-08-25

#ifndef __IPTRANSPOSEMATRIX_HPP__
#define __IPTRANSPOSEMATRIX_HPP__

#include "IpMatrix.hpp"

namespace Ipopt
{

  /* forward declarations */
  class TransposeMatrixSpace;

  class TransposeMatrix : public Matrix
  {
  public:


    TransposeMatrix(const TransposeMatrixSpace* owner_space);

    ~TransposeMatrix()
    {}

    SmartPtr<const Matrix> OrigMatrix() const
    {
      return ConstPtr(orig_matrix_);
    }

  protected:
    virtual void MultVectorImpl(Number alpha, const Vector& x,
                                Number beta, Vector& y) const
    {
      DBG_ASSERT(IsValid(orig_matrix_));
      orig_matrix_->TransMultVector(alpha, x, beta, y);
    }

    virtual void TransMultVectorImpl(Number alpha, const Vector& x,
                                     Number beta, Vector& y) const
    {
      DBG_ASSERT(IsValid(orig_matrix_));
      orig_matrix_->MultVector(alpha, x, beta, y);
    }

    virtual bool HasValidNumbersImpl() const
    {
      DBG_ASSERT(IsValid(orig_matrix_));
      return orig_matrix_->HasValidNumbers();
    }

    virtual void ComputeRowAMaxImpl(Vector& rows_norms, bool init) const
    {
      DBG_ASSERT(IsValid(orig_matrix_));
      orig_matrix_->ComputeColAMax(rows_norms, init);
    }

    virtual void ComputeColAMaxImpl(Vector& rows_norms, bool init) const
    {
      DBG_ASSERT(IsValid(orig_matrix_));
      orig_matrix_->ComputeRowAMax(rows_norms, init);
    }

    virtual void PrintImpl(const Journalist& jnlst,
                           EJournalLevel level,
                           EJournalCategory category,
                           const std::string& name,
                           Index indent,
                           const std::string& prefix) const;

  private:
    TransposeMatrix();

    TransposeMatrix(const TransposeMatrix&);

    void operator=(const TransposeMatrix&);

    SmartPtr<Matrix> orig_matrix_;
  };

  class TransposeMatrixSpace : public MatrixSpace
  {
  public:
    TransposeMatrixSpace(const MatrixSpace* orig_matrix_space)
        :
        MatrixSpace(orig_matrix_space->NCols(), orig_matrix_space->NRows()),
        orig_matrix_space_(orig_matrix_space)
    {}

    virtual ~TransposeMatrixSpace()
    {}

    virtual Matrix* MakeNew() const
    {
      return MakeNewTransposeMatrix();
    }

    TransposeMatrix* MakeNewTransposeMatrix() const
    {
      return new TransposeMatrix(this);
    }

    Matrix* MakeNewOrigMatrix() const
    {
      return orig_matrix_space_->MakeNew();
    }

  private:
    TransposeMatrixSpace();

    TransposeMatrixSpace(const TransposeMatrixSpace&);

    void operator=(const TransposeMatrixSpace&);

    SmartPtr<const MatrixSpace> orig_matrix_space_;
  };

} // namespace Ipopt
#endif