IpSymTMatrix.hpp

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// Copyright (C) 2004, 2006 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// $Id: IpSymTMatrix.hpp 1861 2010-12-21 21:34:47Z andreasw $
//
// Authors:  Carl Laird, Andreas Waechter     IBM    2004-08-13
 
#ifndef __IPSYMTMATRIX_HPP__
#define __IPSYMTMATRIX_HPP__
 
#include "IpUtils.hpp"
#include "IpSymMatrix.hpp"
 
namespace Ipopt
{
 
  /* forward declarations */
  class SymTMatrixSpace;
 
  class SymTMatrix : public SymMatrix
  {
  public:
 
 
    SymTMatrix(const SymTMatrixSpace* owner_space);
 
    ~SymTMatrix();
 
    void SetValues(const Number* Values);
 
    Index Nonzeros() const;
 
    const Index* Irows() const;
 
    const Index* Jcols() const;
 
    Number* Values();
    const Number* Values() const;
 
    void FillStruct(ipfint* Irn, ipfint* Jcn) const;
 
    void FillValues(Number* Values) const;
 
  protected:
    virtual void MultVectorImpl(Number alpha, const Vector& x, Number beta,
                                Vector& y) const;
 
    virtual bool HasValidNumbersImpl() const;
 
    virtual void ComputeRowAMaxImpl(Vector& rows_norms, bool init) const;
 
    virtual void PrintImpl(const Journalist& jnlst,
                           EJournalLevel level,
                           EJournalCategory category,
                           const std::string& name,
                           Index indent,
                           const std::string& prefix) const;
 
  private:
    SymTMatrix();
 
    SymTMatrix(const SymTMatrix&);
 
    void operator=(const SymTMatrix&);
 
    const SymTMatrixSpace* owner_space_;
 
    Number* values_;
 
    bool initialized_;
 
  };
 
  class SymTMatrixSpace : public SymMatrixSpace
  {
  public:
    SymTMatrixSpace(Index dim, Index nonZeros, const Index* iRows,
                    const Index* jCols);
 
    ~SymTMatrixSpace();
 
    virtual SymMatrix* MakeNewSymMatrix() const
    {
      return MakeNewSymTMatrix();
    }
 
    SymTMatrix* MakeNewSymTMatrix() const
    {
      return new SymTMatrix(this);
    }
 
    Index Nonzeros() const
    {
      return nonZeros_;
    }
 
    const Index* Irows() const
    {
      return iRows_;
    }
 
    const Index* Jcols() const
    {
      return jCols_;
    }
 
  private:
    Number* AllocateInternalStorage() const;
 
    void FreeInternalStorage(Number* values) const;
 
    const Index nonZeros_;
    Index* iRows_;
    Index* jCols_;
 
    friend class SymTMatrix;
  };
 
  /* Inline Methods */
  inline
  Index SymTMatrix::Nonzeros() const
  {
    return owner_space_->Nonzeros();
  }
 
  inline
  const Index* SymTMatrix::Irows() const
  {
    return owner_space_->Irows();
  }
 
  inline
  const Index* SymTMatrix::Jcols() const
  {
    return owner_space_->Jcols();
  }
 
 
} // namespace Ipopt
#endif