Structure updated and intqpipopt files added

1 files changed, 245 insertions, 0 deletions

diff --git a/newstructure/thirdparty/linux/include/coin/OsiCut.hpp b/newstructure/thirdparty/linux/include/coin/OsiCut.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 OsiCut_H
+#define OsiCut_H
+
+#include "OsiCollections.hpp"
+#include "OsiSolverInterface.hpp"
+
+/** Base Class for cut.
+
+The Base cut class contains:
+  <ul>
+  <li>a measure of the cut's effectivness
+  </ul>
+*/
+
+/*
+  COIN_NOTEST_DUPLICATE is rooted in CoinUtils. Check there before you
+  meddle here.
+*/
+#ifdef COIN_FAST_CODE
+#ifndef COIN_NOTEST_DUPLICATE
+#define COIN_NOTEST_DUPLICATE
+#endif
+#endif
+
+#ifndef COIN_NOTEST_DUPLICATE
+#define COIN_DEFAULT_VALUE_FOR_DUPLICATE true
+#else
+#define COIN_DEFAULT_VALUE_FOR_DUPLICATE false
+#endif
+
+
+class OsiCut  {
+  
+public:
+    
+  //-------------------------------------------------------------------
+  /**@name Effectiveness */
+  //@{
+  /// Set effectiveness
+  inline void setEffectiveness( double e ); 
+  /// Get effectiveness
+  inline double effectiveness() const; 
+  //@}
+
+  /**@name GloballyValid */
+  //@{
+  /// Set globallyValid (nonzero true)
+  inline void setGloballyValid( bool trueFalse ) 
+  { globallyValid_=trueFalse ? 1 : 0;}
+  inline void setGloballyValid( ) 
+  { globallyValid_=1;}
+  inline void setNotGloballyValid( ) 
+  { globallyValid_=0;}
+  /// Get globallyValid
+  inline bool globallyValid() const
+  { return globallyValid_!=0;}
+  /// Set globallyValid as integer (nonzero true)
+  inline void setGloballyValidAsInteger( int trueFalse ) 
+  { globallyValid_=trueFalse;}
+  /// Get globallyValid
+  inline int globallyValidAsInteger() const
+  { return globallyValid_;}
+  //@}
+
+  /**@name Debug stuff */
+  //@{
+    /// Print cuts in collection
+  virtual void print() const {}
+  //@}
+   
+#if 0
+  / **@name Times used */
+  / /@{
+  / // Set times used
+  inline void setTimesUsed( int t );
+  / // Increment times used
+  inline void incrementTimesUsed();
+  / // Get times used
+  inline int timesUsed() const;
+  / /@}
+  
+  / **@name Times tested */
+  / /@{
+  / // Set times tested
+  inline void setTimesTested( int t );
+  / // Increment times tested
+  inline void incrementTimesTested();
+  / // Get times tested
+  inline int timesTested() const;
+  / /@}
+#endif
+
+  //----------------------------------------------------------------
+
+  /**@name Comparison operators  */
+  //@{
+    ///equal. 2 cuts are equal if there effectiveness are equal
+    inline virtual bool operator==(const OsiCut& rhs) const; 
+    /// not equal
+    inline virtual bool operator!=(const OsiCut& rhs) const; 
+    /// less than. True if this.effectiveness < rhs.effectiveness
+    inline virtual bool operator< (const OsiCut& rhs) const; 
+    /// less than. True if this.effectiveness > rhs.effectiveness
+    inline virtual bool operator> (const OsiCut& rhs) const; 
+  //@}
+
+  //----------------------------------------------------------------
+  // consistent() - returns true if the cut is consistent with repect to itself.
+  //         This might include checks to ensure that a packed vector
+  //         itself does not have a negative index.
+  // consistent(const OsiSolverInterface& si) - returns true if cut is consistent with
+  //         respect to the solver interface's model. This might include a check to 
+  //         make sure a column index is not greater than the number
+  //         of columns in the problem.
+  // infeasible(const OsiSolverInterface& si) - returns true if the cut is infeasible 
+  //         "with respect to itself". This might include a check to ensure 
+  //         the lower bound is greater than the upper bound, or if the
+  //         cut simply replaces bounds that the new bounds are feasible with 
+  //         respect to the old bounds.
+  //-----------------------------------------------------------------
+  /**@name Sanity checks on cut */
+  //@{
+  /** Returns true if the cut is consistent with respect to itself,
+      without considering any
+      data in the model. For example, it might check to ensure
+      that a column index is not negative.
+  */
+  inline virtual bool consistent() const=0; 
+
+  /** Returns true if cut is consistent when considering the solver
+      interface's model.  For example, it might check to ensure
+      that a column index is not greater than the number of columns
+      in the model. Assumes consistent() is true.
+  */
+  inline virtual bool consistent(const OsiSolverInterface& si) const=0;
+
+  /** Returns true if the cut is infeasible "with respect to itself" and
+      cannot be satisfied. This method does NOT check whether adding the
+      cut to the solver interface's model will make the -model- infeasble.
+      A cut which returns !infeasible(si) may very well make the model
+      infeasible. (Of course, adding a cut with returns infeasible(si) 
+      will make the model infeasible.)
+
+      The "with respect to itself" is in quotes becaues 
+      in the case where the cut
+      simply replaces existing bounds, it may make
+      sense to test infeasibility with respect to the current bounds
+      held in the solver interface's model. For example, if the cut 
+      has a single variable in it, it might check that the maximum
+      of new and existing lower bounds is greater than the minium of 
+      the new and existing upper bounds.
+
+      Assumes that consistent(si) is true.<br>
+      Infeasible cuts can be a useful mechanism for a cut generator to
+      inform the solver interface that its detected infeasibility of the
+      problem.
+  */
+  inline virtual bool infeasible(const OsiSolverInterface &si) const=0;
+
+  /** Returns infeasibility of the cut with respect to solution 
+      passed in i.e. is positive if cuts off that solution.  
+      solution is getNumCols() long..
+  */
+  virtual double violated(const double * solution) const=0;
+  //@}
+
+protected:
+
+  /**@name Constructors and destructors */
+  //@{
+  /// Default Constructor 
+  OsiCut ();
+  
+  /// Copy constructor 
+  OsiCut ( const OsiCut &);
+   
+  /// Assignment operator 
+  OsiCut & operator=( const OsiCut& rhs);
+
+  /// Destructor 
+  virtual ~OsiCut ();
+  //@}
+  
+private:
+  
+  /**@name Private member data */
+  //@{
+  /// Effectiveness
+  double effectiveness_;
+  /// If cut has global validity i.e. can be used anywhere in tree
+  int globallyValid_;
+#if 0
+  /// Times used
+  int timesUsed_;
+  /// Times tested
+  int timesTested_;
+#endif
+  //@}
+};
+
+
+//-------------------------------------------------------------------
+// Set/Get member data
+//-------------------------------------------------------------------
+void OsiCut::setEffectiveness(double e)  { effectiveness_=e; }
+double OsiCut::effectiveness() const { return effectiveness_; }
+
+#if 0
+void OsiCut::setTimesUsed( int t ) { timesUsed_=t; }
+void OsiCut::incrementTimesUsed() { timesUsed_++; }
+int OsiCut::timesUsed() const { return timesUsed_; }
+
+void OsiCut::setTimesTested( int t ) { timesTested_=t; }
+void OsiCut::incrementTimesTested() { timesTested_++; }
+int OsiCut::timesTested() const{ return timesTested_; }
+#endif
+
+//----------------------------------------------------------------
+// == operator 
+//-------------------------------------------------------------------
+bool
+OsiCut::operator==(const OsiCut& rhs) const
+{
+  return effectiveness()==rhs.effectiveness();
+}
+bool
+OsiCut::operator!=(const OsiCut& rhs) const
+{
+  return !( (*this)==rhs );
+}
+bool
+OsiCut::operator< (const OsiCut& rhs) const
+{
+  return effectiveness()<rhs.effectiveness();
+}
+bool
+OsiCut::operator> (const OsiCut& rhs) const
+{
+  return effectiveness()>rhs.effectiveness();
+}
+#endif