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135 lines
3.6 KiB
135 lines
3.6 KiB
// Copyright (C) 2004, 2008 International Business Machines and others.
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// All Rights Reserved.
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// This code is published under the Eclipse Public License.
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//
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// $Id: IpZeroSymMatrix.hpp 2269 2013-05-05 11:32:40Z stefan $
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//
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// Authors: Carl Laird, Andreas Waechter IBM 2004-08-13
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#ifndef __IPZEROSYMMATRIX_HPP__
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#define __IPZEROSYMMATRIX_HPP__
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#include "IpUtils.hpp"
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#include "IpSymMatrix.hpp"
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namespace Ipopt
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{
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/** Class for Symmetric Matrices with only zero entries.
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*/
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class ZeroSymMatrix : public SymMatrix
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{
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public:
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/**@name Constructors / Destructors */
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//@{
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/** Constructor, taking the corresponding matrix space.
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*/
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ZeroSymMatrix(const SymMatrixSpace* owner_space);
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/** Destructor */
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~ZeroSymMatrix();
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//@}
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protected:
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/**@name Methods overloaded from matrix */
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//@{
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virtual void MultVectorImpl(Number alpha, const Vector& x,
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Number beta, Vector& y) const;
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virtual void TransMultVectorImpl(Number alpha, const Vector& x,
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Number beta, Vector& y) const;
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virtual void ComputeRowAMaxImpl(Vector& rows_norms, bool init) const
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{}
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virtual void ComputeColAMaxImpl(Vector& cols_norms, bool init) const
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{}
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virtual void PrintImpl(const Journalist& jnlst,
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EJournalLevel level,
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EJournalCategory category,
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const std::string& name,
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Index indent,
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const std::string& prefix) const;
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//@}
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private:
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/**@name Default Compiler Generated Methods
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* (Hidden to avoid implicit creation/calling).
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* These methods are not implemented and
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* we do not want the compiler to implement
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* them for us, so we declare them private
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* and do not define them. This ensures that
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* they will not be implicitly created/called. */
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//@{
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/** Default Constructor */
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ZeroSymMatrix();
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/** Copy Constructor */
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ZeroSymMatrix(const ZeroSymMatrix&);
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/** Overloaded Equals Operator */
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void operator=(const ZeroSymMatrix&);
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//@}
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};
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/** Class for matrix space for ZeroSymMatrix. */
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class ZeroSymMatrixSpace : public SymMatrixSpace
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{
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public:
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/** @name Constructors / Destructors */
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//@{
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/** Constructor, given the number of row and columns.
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*/
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ZeroSymMatrixSpace(Index dim)
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:
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SymMatrixSpace(dim)
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{}
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/** Destructor */
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virtual ~ZeroSymMatrixSpace()
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{}
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//@}
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/** Overloaded MakeNew method for the MatrixSpace base class.
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*/
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virtual Matrix* MakeNew() const
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{
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return MakeNewZeroSymMatrix();
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}
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/** Overloaded method from SymMatrixSpace base class
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*/
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virtual SymMatrix* MakeNewSymMatrix() const
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{
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return MakeNewZeroSymMatrix();
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}
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/** Method for creating a new matrix of this specific type. */
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ZeroSymMatrix* MakeNewZeroSymMatrix() const
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{
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return new ZeroSymMatrix(this);
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}
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private:
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/**@name Default Compiler Generated Methods
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* (Hidden to avoid implicit creation/calling).
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* These methods are not implemented and
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* we do not want the compiler to implement
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* them for us, so we declare them private
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* and do not define them. This ensures that
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* they will not be implicitly created/called. */
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//@{
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/** Default Constructor */
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ZeroSymMatrixSpace();
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/** Copy Constructor */
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ZeroSymMatrixSpace(const ZeroSymMatrixSpace&);
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/** Overloaded Equals Operator */
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void operator=(const ZeroSymMatrixSpace&);
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//@}
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};
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} // namespace Ipopt
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#endif
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