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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/CoinWarmStartPrimalDual.hpp
parentd19794fb80a271a4c885ed90f97cfc12baa012f2 (diff)
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Structure updated and intqpipopt files added
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-/* $Id: CoinWarmStartPrimalDual.hpp 1372 2011-01-03 23:31:00Z lou $ */
-// Copyright (C) 2000, International Business Machines
-// Corporation and others. All Rights Reserved.
-// This code is licensed under the terms of the Eclipse Public License (EPL).
-
-#ifndef CoinWarmStartPrimalDual_H
-#define CoinWarmStartPrimalDual_H
-
-#include "CoinHelperFunctions.hpp"
-#include "CoinWarmStart.hpp"
-#include "CoinWarmStartVector.hpp"
-
-
-//#############################################################################
-
-/** WarmStart information that is only a dual vector */
-
-class CoinWarmStartPrimalDual : public virtual CoinWarmStart {
-public:
- /// return the size of the dual vector
- inline int dualSize() const { return dual_.size(); }
- /// return a pointer to the array of duals
- inline const double * dual() const { return dual_.values(); }
-
- /// return the size of the primal vector
- inline int primalSize() const { return primal_.size(); }
- /// return a pointer to the array of primals
- inline const double * primal() const { return primal_.values(); }
-
- /** Assign the primal/dual vectors to be the warmstart information. In this
- method the object assumes ownership of the pointers and upon return \c
- primal and \c dual will be a NULL pointers. If copying is desirable use
- the constructor.
-
- NOTE: \c primal and \c dual must have been allocated by new double[],
- because they will be freed by delete[] upon the desructtion of this
- object...
- */
- void assign(int primalSize, int dualSize, double*& primal, double *& dual) {
- primal_.assignVector(primalSize, primal);
- dual_.assignVector(dualSize, dual);
- }
-
- CoinWarmStartPrimalDual() : primal_(), dual_() {}
-
- CoinWarmStartPrimalDual(int primalSize, int dualSize,
- const double* primal, const double * dual) :
- primal_(primalSize, primal), dual_(dualSize, dual) {}
-
- CoinWarmStartPrimalDual(const CoinWarmStartPrimalDual& rhs) :
- primal_(rhs.primal_), dual_(rhs.dual_) {}
-
- CoinWarmStartPrimalDual& operator=(const CoinWarmStartPrimalDual& rhs) {
- if (this != &rhs) {
- primal_ = rhs.primal_;
- dual_ = rhs.dual_;
- }
- return *this;
- }
-
- /*! \brief Clear the data
-
- Make it appear as if the warmstart was just created using the default
- constructor.
- */
- inline void clear() {
- primal_.clear();
- dual_.clear();
- }
-
- inline void swap(CoinWarmStartPrimalDual& rhs) {
- if (this != &rhs) {
- primal_.swap(rhs.primal_);
- dual_.swap(rhs.dual_);
- }
- }
-
- /** `Virtual constructor' */
- virtual CoinWarmStart *clone() const {
- return new CoinWarmStartPrimalDual(*this);
- }
-
- virtual ~CoinWarmStartPrimalDual() {}
-
- /*! \name PrimalDual warm start `diff' methods */
- //@{
-
- /*! \brief Generate a `diff' that can convert the warm start passed as a
- parameter to the warm start specified by \c this.
-
- The capabilities are limited: the basis passed as a parameter can be no
- larger than the basis pointed to by \c this.
- */
-
- virtual CoinWarmStartDiff*
- generateDiff (const CoinWarmStart *const oldCWS) const ;
-
- /*! \brief Apply \p diff to this warm start.
-
- Update this warm start by applying \p diff. It's assumed that the
- allocated capacity of the warm start is sufficiently large.
- */
-
- virtual void applyDiff (const CoinWarmStartDiff *const cwsdDiff) ;
-
- //@}
-
-#if 0
-protected:
- inline const CoinWarmStartVector<double>& primalWarmStartVector() const
- { return primal_; }
- inline const CoinWarmStartVector<double>& dualWarmStartVector() const
- { return dual_; }
-#endif
-
-private:
- ///@name Private data members
- //@{
- CoinWarmStartVector<double> primal_;
- CoinWarmStartVector<double> dual_;
- //@}
-};
-
-//#############################################################################
-
-/*! \class CoinWarmStartPrimalDualDiff
- \brief A `diff' between two CoinWarmStartPrimalDual objects
-
- This class exists in order to hide from the world the details of calculating
- and representing a `diff' between two CoinWarmStartPrimalDual objects. For
- convenience, assignment, cloning, and deletion are visible to the world, and
- default and copy constructors are made available to derived classes.
- Knowledge of the rest of this structure, and of generating and applying
- diffs, is restricted to the friend functions
- CoinWarmStartPrimalDual::generateDiff() and
- CoinWarmStartPrimalDual::applyDiff().
-
- The actual data structure is a pair of vectors, #diffNdxs_ and #diffVals_.
-
-*/
-
-class CoinWarmStartPrimalDualDiff : public virtual CoinWarmStartDiff
-{
- friend CoinWarmStartDiff*
- CoinWarmStartPrimalDual::generateDiff(const CoinWarmStart *const oldCWS) const;
- friend void
- CoinWarmStartPrimalDual::applyDiff(const CoinWarmStartDiff *const diff) ;
-
-public:
-
- /*! \brief `Virtual constructor'. To be used when retaining polymorphism is
- important */
- virtual CoinWarmStartDiff *clone() const
- {
- return new CoinWarmStartPrimalDualDiff(*this);
- }
-
- /*! \brief Destructor */
- virtual ~CoinWarmStartPrimalDualDiff() {}
-
-protected:
-
- /*! \brief Default constructor
-
- This is protected (rather than private) so that derived classes can
- see it when they make <i>their</i> default constructor protected or
- private.
- */
- CoinWarmStartPrimalDualDiff () : primalDiff_(), dualDiff_() {}
-
- /*! \brief Copy constructor
-
- For convenience when copying objects containing
- CoinWarmStartPrimalDualDiff objects. But consider whether you should be
- using #clone() to retain polymorphism.
-
- This is protected (rather than private) so that derived classes can
- see it when the make <i>their</i> copy constructor protected or
- private.
- */
- CoinWarmStartPrimalDualDiff (const CoinWarmStartPrimalDualDiff &rhs) :
- primalDiff_(rhs.primalDiff_), dualDiff_(rhs.dualDiff_) {}
-
- /*! \brief Clear the data
-
- Make it appear as if the diff was just created using the default
- constructor.
- */
- inline void clear() {
- primalDiff_.clear();
- dualDiff_.clear();
- }
-
- inline void swap(CoinWarmStartPrimalDualDiff& rhs) {
- if (this != &rhs) {
- primalDiff_.swap(rhs.primalDiff_);
- dualDiff_.swap(rhs.dualDiff_);
- }
- }
-
-private:
-
- /*!
- \brief These two differences describe the differences in the primal and
- in the dual vector.
- */
- CoinWarmStartVectorDiff<double> primalDiff_;
- CoinWarmStartVectorDiff<double> dualDiff_;
-} ;
-
-#endif