cbcintlinprog added

1 files changed, 110 insertions, 0 deletions

diff --git a/thirdparty/linux/include/coin/CbcPartialNodeInfo.hpp b/thirdparty/linux/include/coin/CbcPartialNodeInfo.hpp
new file mode 100644
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+++ b/thirdparty/linux/include/coin/CbcPartialNodeInfo.hpp
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+// $Id: CbcPartialNodeInfo.hpp 1899 2013-04-09 18:12:08Z stefan $
+// Copyright (C) 2002, International Business Machines
+// Corporation and others.  All Rights Reserved.
+// This code is licensed under the terms of the Eclipse Public License (EPL).
+
+// Edwin 11/24/09 carved from CbcNode
+
+#ifndef CbcPartialNodeInfo_H
+#define CbcPartialNodeInfo_H
+
+#include <string>
+#include <vector>
+
+#include "CoinWarmStartBasis.hpp"
+#include "CoinSearchTree.hpp"
+#include "CbcBranchBase.hpp"
+#include "CbcNodeInfo.hpp"
+
+class OsiSolverInterface;
+class OsiSolverBranch;
+
+class OsiCuts;
+class OsiRowCut;
+class OsiRowCutDebugger;
+class CoinWarmStartBasis;
+class CbcCountRowCut;
+class CbcModel;
+class CbcNode;
+class CbcSubProblem;
+class CbcGeneralBranchingObject;
+/** \brief Holds information for recreating a subproblem by incremental change
+	   from the parent.
+
+  A CbcPartialNodeInfo object contains changes to the bounds and basis, and
+  additional cuts, required to recreate a subproblem by modifying and
+  augmenting the parent subproblem.
+*/
+
+class CbcPartialNodeInfo : public CbcNodeInfo {
+
+public:
+
+    /** \brief Modify model according to information at node
+
+        The routine modifies the model according to bound and basis change
+        information at node and adds any cuts to the addCuts array.
+    */
+    virtual void applyToModel (CbcModel *model, CoinWarmStartBasis *&basis,
+                               CbcCountRowCut **addCuts,
+                               int &currentNumberCuts) const ;
+
+    /// Just apply bounds to one variable - force means overwrite by lower,upper (1=>infeasible)
+    virtual int applyBounds(int iColumn, double & lower, double & upper, int force) ;
+    /** Builds up row basis backwards (until original model).
+        Returns NULL or previous one to apply .
+        Depends on Free being 0 and impossible for cuts
+    */
+    virtual CbcNodeInfo * buildRowBasis(CoinWarmStartBasis & basis ) const ;
+    // Default Constructor
+    CbcPartialNodeInfo ();
+
+    // Constructor from current state
+    CbcPartialNodeInfo (CbcNodeInfo * parent, CbcNode * owner,
+                        int numberChangedBounds, const int * variables,
+                        const double * boundChanges,
+                        const CoinWarmStartDiff *basisDiff) ;
+
+    // Copy constructor
+    CbcPartialNodeInfo ( const CbcPartialNodeInfo &);
+
+    // Destructor
+    ~CbcPartialNodeInfo ();
+
+    /// Clone
+    virtual CbcNodeInfo * clone() const;
+    /// Basis diff information
+    inline const CoinWarmStartDiff *basisDiff() const {
+        return basisDiff_ ;
+    }
+    /// Which variable (top bit if upper bound changing)
+    inline const int * variables() const {
+        return variables_;
+    }
+    // New bound
+    inline const double * newBounds() const {
+        return newBounds_;
+    }
+    /// Number of bound changes
+    inline int numberChangedBounds() const {
+        return numberChangedBounds_;
+    }
+protected:
+    /* Data values */
+
+    /// Basis diff information
+    CoinWarmStartDiff *basisDiff_ ;
+    /// Which variable (top bit if upper bound changing)
+    int * variables_;
+    // New bound
+    double * newBounds_;
+    /// Number of bound changes
+    int numberChangedBounds_;
+private:
+
+    /// Illegal Assignment operator
+    CbcPartialNodeInfo & operator=(const CbcPartialNodeInfo& rhs);
+};
+
+#endif //CbcPartialNodeInfo_H
+