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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/CglCutGenerator.hpp
parentd19794fb80a271a4c885ed90f97cfc12baa012f2 (diff)
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Structure updated and intqpipopt files added
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diff --git a/build/Bonmin/include/coin/CglCutGenerator.hpp b/build/Bonmin/include/coin/CglCutGenerator.hpp
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-// 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 CglCutGenerator_H
-#define CglCutGenerator_H
-
-#include "OsiCuts.hpp"
-#include "OsiSolverInterface.hpp"
-#include "CglTreeInfo.hpp"
-
-//-------------------------------------------------------------------
-//
-// Abstract base class for generating cuts.
-//
-//-------------------------------------------------------------------
-///
-/** Cut Generator Base Class
-
-This is an abstract base class for generating cuts. A specific cut
-generator will inherit from this class.
-*/
-class CglCutGenerator {
-
-public:
-
- /**@name Generate Cuts */
- //@{
- /** Generate cuts for the model data contained in si.
- The generated cuts are inserted into and returned in the
- collection of cuts cs.
- */
- virtual void generateCuts( const OsiSolverInterface & si, OsiCuts & cs,
- const CglTreeInfo info = CglTreeInfo())=0;
- //@}
-
-
- /**@name Constructors and destructors */
- //@{
- /// Default constructor
- CglCutGenerator ();
-
- /// Copy constructor
- CglCutGenerator ( const CglCutGenerator &);
-
- /// Clone
- virtual CglCutGenerator * clone() const = 0;
-
- /// Assignment operator
- CglCutGenerator & operator=(const CglCutGenerator& rhs);
-
- /// Destructor
- virtual ~CglCutGenerator ();
-
- /** Create C++ lines to set the generator in the current state.
- The output must be parsed by the calling code, as each line
- starts with a key indicating the following:<BR>
- 0: must be kept (for #includes etc)<BR>
- 3: Set to changed (not default) values<BR>
- 4: Set to default values (redundant)<BR>
-
- Keys 1, 2, 5, 6, 7, 8 are defined, but not applicable to
- cut generators.
- */
- virtual std::string generateCpp( FILE * ) {return "";}
-
- /// This can be used to refresh any information
- virtual void refreshSolver(OsiSolverInterface * ) {}
- //@}
-
- /**@name Gets and Sets */
- //@{
- /**
- Get Aggressiveness - 0 = neutral, 100 is normal root node.
- Really just a hint to cut generator
- */
- inline int getAggressiveness() const
- { return aggressive_;}
-
- /**
- Set Aggressiveness - 0 = neutral, 100 is normal root node.
- Really just a hint to cut generator
- */
- inline void setAggressiveness(int value)
- { aggressive_=value;}
- /// Set whether can do global cuts
- inline void setGlobalCuts(bool trueOrFalse)
- { canDoGlobalCuts_ = trueOrFalse;}
- /// Say whether can do global cuts
- inline bool canDoGlobalCuts() const
- {return canDoGlobalCuts_;}
- /**
- Returns true if may generate Row cuts in tree (rather than root node).
- Used so know if matrix will change in tree. Really
- meant so column cut generators can still be active
- without worrying code.
- Default is true
- */
- virtual bool mayGenerateRowCutsInTree() const;
- /// Return true if needs optimal basis to do cuts
- virtual bool needsOptimalBasis() const;
- /// Return maximum length of cut in tree
- virtual int maximumLengthOfCutInTree() const
- { return COIN_INT_MAX;}
- //@}
-
- // test this class
- //static void unitTest();
-
-// private:
-
- /**
- Aggressiveness - 0 = neutral, 100 is normal root node.
- Really just a hint to cut generator
- */
- int aggressive_;
- /// True if can do global cuts i.e. no general integers
- bool canDoGlobalCuts_;
-};
-
-#endif