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authorHarpreet2016-09-03 00:34:27 +0530
committerHarpreet2016-09-03 00:34:27 +0530
commit4b64cf486f5c999fd8167758cae27839f3b50848 (patch)
treed9d06639fb7fa61aef59be0363655e4747105ec7 /build/Bonmin/include/coin/CoinPresolveSingleton.hpp
parentd19794fb80a271a4c885ed90f97cfc12baa012f2 (diff)
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Structure updated and intqpipopt files added
Diffstat (limited to 'build/Bonmin/include/coin/CoinPresolveSingleton.hpp')
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diff --git a/build/Bonmin/include/coin/CoinPresolveSingleton.hpp b/build/Bonmin/include/coin/CoinPresolveSingleton.hpp
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-/* $Id: CoinPresolveSingleton.hpp 1498 2011-11-02 15:25:35Z mjs $ */
-// Copyright (C) 2002, International Business Machines
-// Corporation and others. All Rights Reserved.
-// This code is licensed under the terms of the Eclipse Public License (EPL).
-
-#ifndef CoinPresolveSingleton_H
-#define CoinPresolveSingleton_H
-#define SLACK_DOUBLETON 2
-#define SLACK_SINGLETON 8
-
-/*!
- \file
-*/
-
-//const int MAX_SLACK_DOUBLETONS = 1000;
-
-/*! \class slack_doubleton_action
- \brief Convert an explicit bound constraint to a column bound
-
- This transform looks for explicit bound constraints for a variable and
- transfers the bound to the appropriate column bound array.
- The constraint is removed from the constraint system.
-*/
-class slack_doubleton_action : public CoinPresolveAction {
- struct action {
- double clo;
- double cup;
-
- double rlo;
- double rup;
-
- double coeff;
-
- int col;
- int row;
- };
-
- const int nactions_;
- const action *const actions_;
-
- slack_doubleton_action(int nactions,
- const action *actions,
- const CoinPresolveAction *next) :
- CoinPresolveAction(next),
- nactions_(nactions),
- actions_(actions)
-{}
-
- public:
- const char *name() const { return ("slack_doubleton_action"); }
-
- /*! \brief Convert explicit bound constraints to column bounds.
-
- Not now There is a hard limit (#MAX_SLACK_DOUBLETONS) on the number of
- constraints processed in a given call. \p notFinished is set to true
- if candidates remain.
- */
- static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
- const CoinPresolveAction *next,
- bool &notFinished);
-
- void postsolve(CoinPostsolveMatrix *prob) const;
-
-
- virtual ~slack_doubleton_action() { deleteAction(actions_,action*); }
-};
-/*! \class slack_singleton_action
- \brief For variables with one entry
-
- If we have a variable with one entry and no cost then we can
- transform the row from E to G etc.
- If there is a row objective region then we may be able to do
- this even with a cost.
-*/
-class slack_singleton_action : public CoinPresolveAction {
- struct action {
- double clo;
- double cup;
-
- double rlo;
- double rup;
-
- double coeff;
-
- int col;
- int row;
- };
-
- const int nactions_;
- const action *const actions_;
-
- slack_singleton_action(int nactions,
- const action *actions,
- const CoinPresolveAction *next) :
- CoinPresolveAction(next),
- nactions_(nactions),
- actions_(actions)
-{}
-
- public:
- const char *name() const { return ("slack_singleton_action"); }
-
- static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
- const CoinPresolveAction *next,
- double * rowObjective);
-
- void postsolve(CoinPostsolveMatrix *prob) const;
-
-
- virtual ~slack_singleton_action() { deleteAction(actions_,action*); }
-};
-#endif