cbcintlinprog added

1 files changed, 115 insertions, 0 deletions

diff --git a/thirdparty/linux/include/coin/CglAllDifferent.hpp b/thirdparty/linux/include/coin/CglAllDifferent.hpp
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+++ b/thirdparty/linux/include/coin/CglAllDifferent.hpp
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+// Copyright (C) 2005, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+#ifndef CglAllDifferent_H
+#define CglAllDifferent_H
+
+#include <string>
+
+#include "CglCutGenerator.hpp"
+
+/** AllDifferent Cut Generator Class 
+    This has a number of sets.  All the members in each set are general integer
+    variables which have to be different from all others in the set.
+
+    At present this only generates column cuts
+
+    At present it is very primitive compared to proper CSP implementations
+ */
+class CglAllDifferent : public CglCutGenerator {
+ 
+public:
+    
+  
+  /**@name Generate Cuts */
+  //@{
+  /** This fixes (or reduces bounds) on sets of all different variables
+  */
+  virtual void generateCuts( const OsiSolverInterface & si, OsiCuts & cs,
+			     const CglTreeInfo info = CglTreeInfo());
+  //@}
+
+
+  /**@name Constructors and destructors */
+  //@{
+  /// Default constructor 
+  CglAllDifferent ();
+
+  /// Useful constructot
+  CglAllDifferent(int numberSets, const int * starts, const int * which);
+ 
+  /// Copy constructor 
+  CglAllDifferent (
+    const CglAllDifferent &);
+
+  /// Clone
+  virtual CglCutGenerator * clone() const;
+
+  /// Assignment operator 
+  CglAllDifferent &
+    operator=(
+    const CglAllDifferent& rhs);
+  
+  /// Destructor 
+  virtual
+    ~CglAllDifferent ();
+  /// Create C++ lines to get to current state
+  virtual std::string generateCpp( FILE * fp);
+
+  /// This can be used to refresh any inforamtion
+  virtual void refreshSolver(OsiSolverInterface * solver);
+  /**
+     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 false;}
+  //@}
+  /**@name Sets and Gets */
+  //@{
+  /// Set log level
+  inline void setLogLevel(int value)
+  { logLevel_=value;}
+  /// Get log level
+  inline int getLogLevel() const
+  { return logLevel_;}
+  /// Set Maximum number of sets to look at at once
+  inline void setMaxLook(int value)
+  { maxLook_=value;}
+  /// Get Maximum number of sets to look at at once
+  inline int getMaxLook() const
+  { return maxLook_;}
+  //@}
+      
+private:
+  
+ // Private member methods
+  /**@name  */
+  //@{
+  //@}
+
+  // Private member data
+
+  /**@name Private member data */
+  //@{
+  /// Number of sets
+  int numberSets_;
+  /// Total number of variables in all different sets
+  int numberDifferent_;
+  /// Maximum number of sets to look at at once
+  int maxLook_;
+  /// Log level - 0 none, 1 - a bit, 2 - more details
+  int logLevel_;
+  /// Start of each set
+  int * start_;
+  /// Members (0,1,....) not as in original model
+  int * which_;
+  /// Original members
+  int * originalWhich_;
+  //@}
+};
+#endif