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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* */
/* This file is part of the class library */
/* SoPlex --- the Sequential object-oriented simPlex. */
/* */
/* Copyright 1996-2022 Zuse Institute Berlin */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
/* See the License for the specific language governing permissions and */
/* limitations under the License. */
/* */
/* You should have received a copy of the Apache-2.0 license */
/* along with SoPlex; see the file LICENSE. If not email to soplex@zib.de. */
/* */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**@file spxdefaultrt.h
* @brief Textbook ratio test for SoPlex.
*/
#ifndef _SPXDEFAULTRT_H_
#define _SPXDEFAULTRT_H_
#include <assert.h>
#include "soplex/spxdefines.h"
#include "soplex/spxratiotester.h"
namespace soplex
{
/**@brief Textbook ratio test for SoPlex.
@ingroup Algo
Class SPxDefaultRT provides an implementation of the textbook ratio test
as a derived class of SPxRatioTester. This class is not intended for
reliably solving LPs (even though it does the job for ``numerically simple''
LPs). Instead, it should serve as a demonstration of how to write ratio
tester classes.
See SPxRatioTester for a class documentation.
*/
template <class R>
class SPxDefaultRT : public SPxRatioTester<R>
{
public:
//-------------------------------------
/**@name Construction / destruction */
///@{
/// default constructor
SPxDefaultRT()
: SPxRatioTester<R>("Default")
{}
/// copy constructor
SPxDefaultRT(const SPxDefaultRT& old)
: SPxRatioTester<R>(old)
{}
/// assignment operator
SPxDefaultRT& operator=(const SPxDefaultRT& rhs)
{
if(this != &rhs)
{
SPxRatioTester<R>::operator=(rhs);
}
return *this;
}
/// destructor
virtual ~SPxDefaultRT()
{}
/// clone function for polymorphism
inline virtual SPxRatioTester<R>* clone() const
{
return new SPxDefaultRT(*this);
}
///@}
//-------------------------------------
/**@name Select enter/leave */
///@{
///
virtual int selectLeave(R& val, R, bool);
///
virtual SPxId selectEnter(R& val, int, bool);
};
} // namespace soplex
#include "spxdefaultrt.hpp"
#endif // _SPXDEFAULTRT_H_