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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/CoinWarmStartDual.hpp
parentd19794fb80a271a4c885ed90f97cfc12baa012f2 (diff)
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Structure updated and intqpipopt files added
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-/* $Id: CoinWarmStartDual.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 CoinWarmStartDual_H
-#define CoinWarmStartDual_H
-
-#include "CoinHelperFunctions.hpp"
-#include "CoinWarmStart.hpp"
-#include "CoinWarmStartVector.hpp"
-
-
-//#############################################################################
-
-/** WarmStart information that is only a dual vector */
-
-class CoinWarmStartDual : public virtual CoinWarmStart {
-public:
- /// return the size of the dual vector
- inline int size() const { return dual_.size(); }
- /// return a pointer to the array of duals
- inline const double * dual() const { return dual_.values(); }
-
- /** Assign the dual vector to be the warmstart information. In this method
- the object assumes ownership of the pointer and upon return "dual" will
- be a NULL pointer. If copying is desirable use the constructor. */
- inline void assignDual(int size, double *& dual)
- { dual_.assignVector(size, dual); }
-
- CoinWarmStartDual() {}
-
- CoinWarmStartDual(int size, const double * dual) : dual_(size, dual) {}
-
- CoinWarmStartDual(const CoinWarmStartDual& rhs) : dual_(rhs.dual_) {}
-
- CoinWarmStartDual& operator=(const CoinWarmStartDual& rhs) {
- if (this != &rhs) {
- dual_ = rhs.dual_;
- }
- return *this;
- }
-
- /** `Virtual constructor' */
- virtual CoinWarmStart *clone() const {
- return new CoinWarmStartDual(*this);
- }
-
- virtual ~CoinWarmStartDual() {}
-
-/*! \name Dual 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>& warmStartVector() const { return dual_; }
-#endif
-
-//@}
-
-private:
- ///@name Private data members
- CoinWarmStartVector<double> dual_;
-};
-
-//#############################################################################
-
-/*! \class CoinWarmStartDualDiff
- \brief A `diff' between two CoinWarmStartDual objects
-
- This class exists in order to hide from the world the details of
- calculating and representing a `diff' between two CoinWarmStartDual
- 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
- CoinWarmStartDual::generateDiff() and CoinWarmStartDual::applyDiff().
-
- The actual data structure is a pair of vectors, #diffNdxs_ and #diffVals_.
-
-*/
-
-class CoinWarmStartDualDiff : public virtual CoinWarmStartDiff
-{ public:
-
- /*! \brief `Virtual constructor' */
- virtual CoinWarmStartDiff *clone() const
- {
- return new CoinWarmStartDualDiff(*this) ;
- }
-
- /*! \brief Assignment */
- virtual CoinWarmStartDualDiff &operator= (const CoinWarmStartDualDiff &rhs)
- {
- if (this != &rhs) {
- diff_ = rhs.diff_;
- }
- return *this;
- }
-
- /*! \brief Destructor */
- virtual ~CoinWarmStartDualDiff() {}
-
- 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.
- */
- CoinWarmStartDualDiff () : diff_() {}
-
- /*! \brief Copy constructor
-
- For convenience when copying objects containing CoinWarmStartDualDiff
- 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.
- */
- CoinWarmStartDualDiff (const CoinWarmStartDualDiff &rhs) :
- diff_(rhs.diff_) {}
-
- private:
-
- friend CoinWarmStartDiff*
- CoinWarmStartDual::generateDiff(const CoinWarmStart *const oldCWS) const ;
- friend void
- CoinWarmStartDual::applyDiff(const CoinWarmStartDiff *const diff) ;
-
- /*! \brief Standard constructor */
- CoinWarmStartDualDiff (int sze, const unsigned int *const diffNdxs,
- const double *const diffVals) :
- diff_(sze, diffNdxs, diffVals) {}
-
- /*!
- \brief The difference in the dual vector is simply the difference in a
- vector.
- */
- CoinWarmStartVectorDiff<double> diff_;
-};
-
-
-#endif
-