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+/* $Id: CbcHeuristicRINS.hpp 1956 2013-08-17 15:28:45Z forrest $ */
+// Copyright (C) 2006, International Business Machines
+// Corporation and others. All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CbcHeuristicRINS_H
+#define CbcHeuristicRINS_H
+
+#include "CbcHeuristic.hpp"
+// for backward compatibility include 3 other headers
+#include "CbcHeuristicRENS.hpp"
+#include "CbcHeuristicDINS.hpp"
+#include "CbcHeuristicVND.hpp"
+/** LocalSearch class
+ */
+
+class CbcHeuristicRINS : public CbcHeuristic {
+public:
+
+ // Default Constructor
+ CbcHeuristicRINS ();
+
+ /* Constructor with model - assumed before cuts
+ Initial version does not do Lps
+ */
+ CbcHeuristicRINS (CbcModel & model);
+
+ // Copy constructor
+ CbcHeuristicRINS ( const CbcHeuristicRINS &);
+
+ // Destructor
+ ~CbcHeuristicRINS ();
+
+ /// Clone
+ virtual CbcHeuristic * clone() const;
+
+
+ /// Assignment operator
+ CbcHeuristicRINS & operator=(const CbcHeuristicRINS& rhs);
+
+ /// Create C++ lines to get to current state
+ virtual void generateCpp( FILE * fp) ;
+
+ /// Resets stuff if model changes
+ virtual void resetModel(CbcModel * model);
+
+ /// update model (This is needed if cliques update matrix etc)
+ virtual void setModel(CbcModel * model);
+
+ using CbcHeuristic::solution ;
+ /** returns 0 if no solution, 1 if valid solution.
+ Sets solution values if good, sets objective value (only if good)
+ This does Relaxation Induced Neighborhood Search
+ */
+ virtual int solution(double & objectiveValue,
+ double * newSolution);
+ /// This version fixes stuff and does IP
+ int solutionFix(double & objectiveValue,
+ double * newSolution,
+ const int * keep);
+
+ /// Sets how often to do it
+ inline void setHowOften(int value) {
+ howOften_ = value;
+ }
+ /// Used array so we can set
+ inline char * used() const {
+ return used_;
+ }
+ /// Resets lastNode
+ inline void setLastNode(int value) {
+ lastNode_ = value;
+ }
+ /// Resets number of solutions
+ inline void setSolutionCount(int value) {
+ numberSolutions_ = value;
+ }
+
+protected:
+ // Data
+
+ /// Number of solutions so we can do something at solution
+ int numberSolutions_;
+ /// How often to do (code can change)
+ int howOften_;
+ /// Number of successes
+ int numberSuccesses_;
+ /// Number of tries
+ int numberTries_;
+ /** State of fixing continuous variables -
+ 0 - not tried
+ +n - this divisor makes small enough
+ -n - this divisor still not small enough
+ */
+ int stateOfFixing_;
+ /// Node when last done
+ int lastNode_;
+ /// Whether a variable has been in a solution
+ char * used_;
+};
+#endif
+