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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.
//
// Authors: Carl Laird, Andreas Waechter IBM 2004-09-23
#ifndef __IPEQMULTCALCULATOR_HPP__
#define __IPEQMULTCALCULATOR_HPP__
#include "IpUtils.hpp"
#include "IpAlgStrategy.hpp"
namespace Ipopt
{
/** Base Class for objects that compute estimates for the equality
* constraint multipliers y_c and y_d.
*
* For example, this is the base class for objects for computing
* least square multipliers or coordinate multipliers.
*/
class EqMultiplierCalculator: public AlgorithmStrategyObject
{
public:
/**@name Constructors/Destructors */
///@{
/** Default Constructor. */
EqMultiplierCalculator()
{ }
/** Destructor */
virtual ~EqMultiplierCalculator()
{ }
///@}
/** overloaded from AlgorithmStrategyObject */
virtual bool InitializeImpl(
const OptionsList& options,
const std::string& prefix
) = 0;
/** This method computes the estimates for y_c and y_d at the
* current point.
*
* If the estimates cannot be computed (e.g. some linear system
* is singular), the return value of this method is false.
*/
virtual bool CalculateMultipliers(
Vector& y_c,
Vector& y_d
) = 0;
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.
*/
///@{
/** Copy Constructor */
EqMultiplierCalculator(
const EqMultiplierCalculator&
);
/** Default Assignment Operator */
void operator=(
const EqMultiplierCalculator&
);
///@}
};
} // namespace Ipopt
#endif