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-// Copyright (C) 2004, 2008 International Business Machines and others.
-// All Rights Reserved.
-// This code is published under the Eclipse Public License.
-//
-// $Id: IpSymMatrix.hpp 2269 2013-05-05 11:32:40Z stefan $
-//
-// Authors: Carl Laird, Andreas Waechter IBM 2004-08-13
-
-#ifndef __IPSYMMATRIX_HPP__
-#define __IPSYMMATRIX_HPP__
-
-#include "IpUtils.hpp"
-#include "IpMatrix.hpp"
-
-namespace Ipopt
-{
-
- /* forward declarations */
- class SymMatrixSpace;
-
- /** This is the base class for all derived symmetric matrix types.
- */
- class SymMatrix : public Matrix
- {
- public:
- /** @name Constructor/Destructor */
- //@{
- /** Constructor, taking the owner_space.
- */
- inline
- SymMatrix(const SymMatrixSpace* owner_space);
-
- /** Destructor */
- virtual ~SymMatrix()
- {}
- //@}
-
- /** @name Information about the size of the matrix */
- //@{
- /** Dimension of the matrix (number of rows and columns) */
- inline
- Index Dim() const;
- //@}
-
- inline
- SmartPtr<const SymMatrixSpace> OwnerSymMatrixSpace() const;
-
- protected:
- /** @name Overloaded methods from Matrix. */
- //@{
- /** Since the matrix is
- * symmetric, it is only necessary to implement the
- * MultVectorImpl method in a class that inherits from this base
- * class. If the TransMultVectorImpl is called, this base class
- * automatically calls MultVectorImpl instead. */
- virtual void TransMultVectorImpl(Number alpha, const Vector& x, Number beta,
- Vector& y) const
- {
- // Since this matrix is symetric, this is the same operation as
- // MultVector
- MultVector(alpha, x, beta, y);
- }
- /** Since the matrix is symmetric, the row and column max norms
- * are identical */
- virtual void ComputeColAMaxImpl(Vector& cols_norms, bool init) const
- {
- ComputeRowAMaxImpl(cols_norms, init);
- }
- //@}
-
- private:
- /** Copy of the owner space ptr as a SymMatrixSpace instead
- * of a MatrixSpace
- */
- const SymMatrixSpace* owner_space_;
- };
-
-
- /** SymMatrixSpace base class, corresponding to the SymMatrix base
- * class. */
- class SymMatrixSpace : public MatrixSpace
- {
- public:
- /** @name Constructors/Destructors */
- //@{
- /** Constructor, given the dimension (identical to the number of
- * rows and columns).
- */
- SymMatrixSpace(Index dim)
- :
- MatrixSpace(dim,dim)
- {}
-
- /** Destructor */
- virtual ~SymMatrixSpace()
- {}
- //@}
-
- /** Pure virtual method for creating a new matrix of this specific
- * type. */
- virtual SymMatrix* MakeNewSymMatrix() const=0;
-
- /** Overloaded MakeNew method for the MatrixSpace base class.
- */
- virtual Matrix* MakeNew() const
- {
- return MakeNewSymMatrix();
- }
-
- /** Accessor method for the dimension of the matrices in this
- * matrix space.
- */
- Index Dim() const
- {
- DBG_ASSERT(NRows() == NCols());
- return NRows();
- }
-
- private:
- /**@name Default Compiler Generated Methods
- * (Hidden to avoid implicit creation/calling).
- * These methods are not implemented and
- * we do not want the compiler to implement
- * them for us, so we declare them private
- * and do not define them. This ensures that
- * they will not be implicitly created/called. */
- //@{
- /** default constructor */
- SymMatrixSpace();
-
- /* Copy constructor */
- SymMatrixSpace(const SymMatrixSpace&);
-
- /** Overloaded Equals Operator */
- SymMatrixSpace& operator=(const SymMatrixSpace&);
- //@}
-
- };
-
- /* inline methods */
- inline
- SymMatrix::SymMatrix(const SymMatrixSpace* owner_space)
- :
- Matrix(owner_space),
- owner_space_(owner_space)
- {}
-
- inline
- Index SymMatrix::Dim() const
- {
- return owner_space_->Dim();
- }
-
- inline
- SmartPtr<const SymMatrixSpace> SymMatrix::OwnerSymMatrixSpace() const
- {
- return owner_space_;
- }
-
-} // namespace Ipopt
-
-#endif