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authorHarpreet2016-09-03 00:36:51 +0530
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+// $Id: OsiCbcSolverInterface.hpp 1899 2013-04-09 18:12:08Z stefan $
+// 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 OsiCbcSolverInterface_H
+#define OsiCbcSolverInterface_H
+
+#include <string>
+#include <cfloat>
+#include <map>
+#include "CbcModel.hpp"
+#include "CoinPackedMatrix.hpp"
+#include "OsiSolverInterface.hpp"
+#include "CbcStrategy.hpp"
+#include "CoinWarmStartBasis.hpp"
+
+class OsiRowCut;
+class OsiClpSolverInterface;
+static const double OsiCbcInfinity = COIN_DBL_MAX;
+
+//#############################################################################
+
+/** Cbc Solver Interface
+
+Instantiation of OsiCbcSolverInterface for the Model Algorithm.
+
+*/
+
+class OsiCbcSolverInterface :
+ virtual public OsiSolverInterface {
+ friend void OsiCbcSolverInterfaceUnitTest(const std::string & mpsDir, const std::string & netlibDir);
+
+public:
+ //---------------------------------------------------------------------------
+ /**@name Solve methods */
+ //@{
+ /// Solve initial LP relaxation
+ virtual void initialSolve();
+
+ /// Resolve an LP relaxation after problem modification
+ virtual void resolve();
+
+ /// Invoke solver's built-in enumeration algorithm
+ virtual void branchAndBound();
+ //@}
+
+ //---------------------------------------------------------------------------
+ /**@name Parameter set/get methods
+
+ The set methods return true if the parameter was set to the given value,
+ false otherwise. There can be various reasons for failure: the given
+ parameter is not applicable for the solver (e.g., refactorization
+ frequency for the cbc algorithm), the parameter is not yet implemented
+ for the solver or simply the value of the parameter is out of the range
+ the solver accepts. If a parameter setting call returns false check the
+ details of your solver.
+
+ The get methods return true if the given parameter is applicable for the
+ solver and is implemented. In this case the value of the parameter is
+ returned in the second argument. Otherwise they return false.
+ */
+ //@{
+ // Set an integer parameter
+ bool setIntParam(OsiIntParam key, int value);
+ // Set an double parameter
+ bool setDblParam(OsiDblParam key, double value);
+ // Set a string parameter
+ bool setStrParam(OsiStrParam key, const std::string & value);
+ // Get an integer parameter
+ bool getIntParam(OsiIntParam key, int& value) const;
+ // Get an double parameter
+ bool getDblParam(OsiDblParam key, double& value) const;
+ // Get a string parameter
+ bool getStrParam(OsiStrParam key, std::string& value) const;
+ // Set a hint parameter - overrides OsiSolverInterface
+ virtual bool setHintParam(OsiHintParam key, bool yesNo=true,
+ OsiHintStrength strength=OsiHintTry,
+ void * otherInformation=NULL);
+ /// Get a hint parameter
+ virtual bool getHintParam(OsiHintParam key, bool& yesNo,
+ OsiHintStrength& strength,
+ void *& otherInformation) const;
+
+ using OsiSolverInterface::getHintParam ;
+ /// Get a hint parameter
+ virtual bool getHintParam(OsiHintParam key, bool& yesNo,
+ OsiHintStrength& strength) const;
+ //@}
+
+ //---------------------------------------------------------------------------
+ ///@name Methods returning info on how the solution process terminated
+ //@{
+ /// Are there a numerical difficulties?
+ virtual bool isAbandoned() const;
+ /// Is optimality proven?
+ virtual bool isProvenOptimal() const;
+ /// Is primal infeasiblity proven?
+ virtual bool isProvenPrimalInfeasible() const;
+ /// Is dual infeasiblity proven?
+ virtual bool isProvenDualInfeasible() const;
+ /// Is the given primal objective limit reached?
+ virtual bool isPrimalObjectiveLimitReached() const;
+ /// Is the given dual objective limit reached?
+ virtual bool isDualObjectiveLimitReached() const;
+ /// Iteration limit reached?
+ virtual bool isIterationLimitReached() const;
+ //@}
+
+ //---------------------------------------------------------------------------
+ /**@name WarmStart related methods */
+ //@{
+
+ /*! \brief Get an empty warm start object
+
+ This routine returns an empty CoinWarmStartBasis object. Its purpose is
+ to provide a way to give a client a warm start basis object of the
+ appropriate type, which can resized and modified as desired.
+ */
+
+ virtual CoinWarmStart *getEmptyWarmStart () const;
+
+ /// Get warmstarting information
+ virtual CoinWarmStart* getWarmStart() const;
+ /** Set warmstarting information. Return true/false depending on whether
+ the warmstart information was accepted or not. */
+ virtual bool setWarmStart(const CoinWarmStart* warmstart);
+ //@}
+
+ //---------------------------------------------------------------------------
+ /**@name Hotstart related methods (primarily used in strong branching). <br>
+ The user can create a hotstart (a snapshot) of the optimization process
+ then reoptimize over and over again always starting from there.<br>
+ <strong>NOTE</strong>: between hotstarted optimizations only
+ bound changes are allowed. */
+ //@{
+ /// Create a hotstart point of the optimization process
+ virtual void markHotStart();
+ /// Optimize starting from the hotstart
+ virtual void solveFromHotStart();
+ /// Delete the snapshot
+ virtual void unmarkHotStart();
+ //@}
+
+ //---------------------------------------------------------------------------
+ /**@name Problem information methods
+
+ These methods call the solver's query routines to return
+ information about the problem referred to by the current object.
+ Querying a problem that has no data associated with it result in
+ zeros for the number of rows and columns, and NULL pointers from
+ the methods that return vectors.
+
+ Const pointers returned from any data-query method are valid as
+ long as the data is unchanged and the solver is not called.
+ */
+ //@{
+ /**@name Methods related to querying the input data */
+ //@{
+ /// Get number of columns
+ virtual int getNumCols() const;
+
+ /// Get number of rows
+ virtual int getNumRows() const;
+
+ /// Get number of nonzero elements
+ virtual int getNumElements() const ;
+
+ /// Get pointer to array[getNumCols()] of column lower bounds
+ virtual const double * getColLower() const;
+
+ /// Get pointer to array[getNumCols()] of column upper bounds
+ virtual const double * getColUpper() const;
+
+ /** Get pointer to array[getNumRows()] of row constraint senses.
+ <ul>
+ <li>'L' <= constraint
+ <li>'E' = constraint
+ <li>'G' >= constraint
+ <li>'R' ranged constraint
+ <li>'N' free constraint
+ </ul>
+ */
+ virtual const char * getRowSense() const;
+
+ /** Get pointer to array[getNumRows()] of rows right-hand sides
+ <ul>
+ <li> if rowsense()[i] == 'L' then rhs()[i] == rowupper()[i]
+ <li> if rowsense()[i] == 'G' then rhs()[i] == rowlower()[i]
+ <li> if rowsense()[i] == 'R' then rhs()[i] == rowupper()[i]
+ <li> if rowsense()[i] == 'N' then rhs()[i] == 0.0
+ </ul>
+ */
+ virtual const double * getRightHandSide() const ;
+
+ /** Get pointer to array[getNumRows()] of row ranges.
+ <ul>
+ <li> if rowsense()[i] == 'R' then
+ rowrange()[i] == rowupper()[i] - rowlower()[i]
+ <li> if rowsense()[i] != 'R' then
+ rowrange()[i] is undefined
+ </ul>
+ */
+ virtual const double * getRowRange() const ;
+
+ /// Get pointer to array[getNumRows()] of row lower bounds
+ virtual const double * getRowLower() const ;
+
+ /// Get pointer to array[getNumRows()] of row upper bounds
+ virtual const double * getRowUpper() const ;
+
+ /// Get pointer to array[getNumCols()] of objective function coefficients
+ virtual const double * getObjCoefficients() const;
+
+ /// Get objective function sense (1 for min (default), -1 for max)
+ virtual double getObjSense() const ;
+
+ /// Return true if column is continuous
+ virtual bool isContinuous(int colNumber) const;
+
+
+ /// Get pointer to row-wise copy of matrix
+ virtual const CoinPackedMatrix * getMatrixByRow() const;
+
+ /// Get pointer to column-wise copy of matrix
+ virtual const CoinPackedMatrix * getMatrixByCol() const;
+
+ /// Get solver's value for infinity
+ virtual double getInfinity() const;
+ //@}
+
+ /**@name Methods related to querying the solution */
+ //@{
+ /// Get pointer to array[getNumCols()] of primal solution vector
+ virtual const double * getColSolution() const;
+
+ /// Get pointer to array[getNumRows()] of dual prices
+ virtual const double * getRowPrice() const;
+
+ /// Get a pointer to array[getNumCols()] of reduced costs
+ virtual const double * getReducedCost() const;
+
+ /** Get pointer to array[getNumRows()] of row activity levels (constraint
+ matrix times the solution vector */
+ virtual const double * getRowActivity() const;
+
+ /// Get objective function value
+ virtual double getObjValue() const;
+
+ /** Get how many iterations it took to solve the problem (whatever
+ "iteration" mean to the solver. */
+ virtual int getIterationCount() const ;
+
+ /** Get as many dual rays as the solver can provide. (In case of proven
+ primal infeasibility there should be at least one.)
+
+ The first getNumRows() ray components will always be associated with
+ the row duals (as returned by getRowPrice()). If \c fullRay is true,
+ the final getNumCols() entries will correspond to the ray components
+ associated with the nonbasic variables. If the full ray is requested
+ and the method cannot provide it, it will throw an exception.
+
+ <strong>NOTE for implementers of solver interfaces:</strong> <br>
+ The double pointers in the vector should point to arrays of length
+ getNumRows() and they should be allocated via new[]. <br>
+
+ <strong>NOTE for users of solver interfaces:</strong> <br>
+ It is the user's responsibility to free the double pointers in the
+ vector using delete[].
+ */
+ virtual std::vector<double*> getDualRays(int maxNumRays,
+ bool fullRay = false) const;
+ /** Get as many primal rays as the solver can provide. (In case of proven
+ dual infeasibility there should be at least one.)
+
+ <strong>NOTE for implementers of solver interfaces:</strong> <br>
+ The double pointers in the vector should point to arrays of length
+ getNumCols() and they should be allocated via new[]. <br>
+
+ <strong>NOTE for users of solver interfaces:</strong> <br>
+ It is the user's responsibility to free the double pointers in the
+ vector using delete[].
+ */
+ virtual std::vector<double*> getPrimalRays(int maxNumRays) const;
+
+ //@}
+
+ /*! \name Methods for row and column names.
+
+ Because OsiCbc is a pass-through class, it's necessary to override any
+ virtual method in order to be sure we catch an override by the underlying
+ solver. See the OsiSolverInterface class documentation for detailed
+ descriptions.
+ */
+ //@{
+
+ /*! \brief Generate a standard name of the form Rnnnnnnn or Cnnnnnnn */
+
+ virtual std::string dfltRowColName(char rc,
+ int ndx, unsigned digits = 7) const ;
+
+ /*! \brief Return the name of the objective function */
+
+ virtual std::string getObjName (unsigned maxLen = std::string::npos) const ;
+
+ /*! \brief Set the name of the objective function */
+
+ virtual void setObjName (std::string name) ;
+
+ /*! \brief Return the name of the row. */
+
+ virtual std::string getRowName(int rowIndex,
+ unsigned maxLen = std::string::npos) const ;
+
+ /*! \brief Return a pointer to a vector of row names */
+
+ virtual const OsiNameVec &getRowNames() ;
+
+ /*! \brief Set a row name */
+
+ virtual void setRowName(int ndx, std::string name) ;
+
+ /*! \brief Set multiple row names */
+
+ virtual void setRowNames(OsiNameVec &srcNames,
+ int srcStart, int len, int tgtStart) ;
+
+ /*! \brief Delete len row names starting at index tgtStart */
+
+ virtual void deleteRowNames(int tgtStart, int len) ;
+
+ /*! \brief Return the name of the column */
+
+ virtual std::string getColName(int colIndex,
+ unsigned maxLen = std::string::npos) const ;
+
+ /*! \brief Return a pointer to a vector of column names */
+
+ virtual const OsiNameVec &getColNames() ;
+
+ /*! \brief Set a column name */
+
+ virtual void setColName(int ndx, std::string name) ;
+
+ /*! \brief Set multiple column names */
+
+ virtual void setColNames(OsiNameVec &srcNames,
+ int srcStart, int len, int tgtStart) ;
+
+ /*! \brief Delete len column names starting at index tgtStart */
+ virtual void deleteColNames(int tgtStart, int len) ;
+
+ //@}
+
+ //@}
+
+ //---------------------------------------------------------------------------
+
+ /**@name Problem modifying methods */
+ //@{
+ //-------------------------------------------------------------------------
+ /**@name Changing bounds on variables and constraints */
+ //@{
+ /** Set an objective function coefficient */
+ virtual void setObjCoeff( int elementIndex, double elementValue );
+
+ using OsiSolverInterface::setColLower ;
+ /** Set a single column lower bound<br>
+ Use -DBL_MAX for -infinity. */
+ virtual void setColLower( int elementIndex, double elementValue );
+
+ using OsiSolverInterface::setColUpper ;
+ /** Set a single column upper bound<br>
+ Use DBL_MAX for infinity. */
+ virtual void setColUpper( int elementIndex, double elementValue );
+
+ /** Set a single column lower and upper bound */
+ virtual void setColBounds( int elementIndex,
+ double lower, double upper );
+
+ /** Set the bounds on a number of columns simultaneously<br>
+ The default implementation just invokes setColLower() and
+ setColUpper() over and over again.
+ @param indexFirst,indexLast pointers to the beginning and after the
+ end of the array of the indices of the variables whose
+ <em>either</em> bound changes
+ @param boundList the new lower/upper bound pairs for the variables
+ */
+ virtual void setColSetBounds(const int* indexFirst,
+ const int* indexLast,
+ const double* boundList);
+
+ /** Set a single row lower bound<br>
+ Use -DBL_MAX for -infinity. */
+ virtual void setRowLower( int elementIndex, double elementValue );
+
+ /** Set a single row upper bound<br>
+ Use DBL_MAX for infinity. */
+ virtual void setRowUpper( int elementIndex, double elementValue ) ;
+
+ /** Set a single row lower and upper bound */
+ virtual void setRowBounds( int elementIndex,
+ double lower, double upper ) ;
+
+ /** Set the type of a single row<br> */
+ virtual void setRowType(int index, char sense, double rightHandSide,
+ double range);
+
+ /** Set the bounds on a number of rows simultaneously<br>
+ The default implementation just invokes setRowLower() and
+ setRowUpper() over and over again.
+ @param indexFirst,indexLast pointers to the beginning and after the
+ end of the array of the indices of the constraints whose
+ <em>either</em> bound changes
+ @param boundList the new lower/upper bound pairs for the constraints
+ */
+ virtual void setRowSetBounds(const int* indexFirst,
+ const int* indexLast,
+ const double* boundList);
+
+ /** Set the type of a number of rows simultaneously<br>
+ The default implementation just invokes setRowType()
+ over and over again.
+ @param indexFirst,indexLast pointers to the beginning and after the
+ end of the array of the indices of the constraints whose
+ <em>any</em> characteristics changes
+ @param senseList the new senses
+ @param rhsList the new right hand sides
+ @param rangeList the new ranges
+ */
+ virtual void setRowSetTypes(const int* indexFirst,
+ const int* indexLast,
+ const char* senseList,
+ const double* rhsList,
+ const double* rangeList);
+ //@}
+
+ //-------------------------------------------------------------------------
+ /**@name Integrality related changing methods */
+ //@{
+ /** Set the index-th variable to be a continuous variable */
+ virtual void setContinuous(int index);
+ /** Set the index-th variable to be an integer variable */
+ virtual void setInteger(int index);
+ /** Set the variables listed in indices (which is of length len) to be
+ continuous variables */
+ virtual void setContinuous(const int* indices, int len);
+ /** Set the variables listed in indices (which is of length len) to be
+ integer variables */
+ virtual void setInteger(const int* indices, int len);
+ //@}
+
+ //-------------------------------------------------------------------------
+ /// Set objective function sense (1 for min (default), -1 for max,)
+ virtual void setObjSense(double s );
+
+ /** Set the primal solution column values
+
+ colsol[numcols()] is an array of values of the problem column
+ variables. These values are copied to memory owned by the
+ solver object or the solver. They will be returned as the
+ result of colsol() until changed by another call to
+ setColsol() or by a call to any solver routine. Whether the
+ solver makes use of the solution in any way is
+ solver-dependent.
+ */
+ virtual void setColSolution(const double * colsol);
+
+ /** Set dual solution vector
+
+ rowprice[numrows()] is an array of values of the problem row
+ dual variables. These values are copied to memory owned by the
+ solver object or the solver. They will be returned as the
+ result of rowprice() until changed by another call to
+ setRowprice() or by a call to any solver routine. Whether the
+ solver makes use of the solution in any way is
+ solver-dependent.
+ */
+ virtual void setRowPrice(const double * rowprice);
+
+ //-------------------------------------------------------------------------
+ /**@name Methods to expand a problem.<br>
+ Note that if a column is added then by default it will correspond to a
+ continuous variable. */
+ //@{
+ using OsiSolverInterface::addCol ;
+ /** */
+ virtual void addCol(const CoinPackedVectorBase& vec,
+ const double collb, const double colub,
+ const double obj);
+ /** Add a column (primal variable) to the problem. */
+ virtual void addCol(int numberElements, const int * rows, const double * elements,
+ const double collb, const double colub,
+ const double obj) ;
+
+ using OsiSolverInterface::addCols ;
+ /** */
+ virtual void addCols(const int numcols,
+ const CoinPackedVectorBase * const * cols,
+ const double* collb, const double* colub,
+ const double* obj);
+ /** */
+ virtual void deleteCols(const int num, const int * colIndices);
+
+ using OsiSolverInterface::addRow ;
+ /** */
+ virtual void addRow(const CoinPackedVectorBase& vec,
+ const double rowlb, const double rowub);
+ /** */
+ virtual void addRow(const CoinPackedVectorBase& vec,
+ const char rowsen, const double rowrhs,
+ const double rowrng);
+
+ using OsiSolverInterface::addRows ;
+ /** */
+ virtual void addRows(const int numrows,
+ const CoinPackedVectorBase * const * rows,
+ const double* rowlb, const double* rowub);
+ /** */
+ virtual void addRows(const int numrows,
+ const CoinPackedVectorBase * const * rows,
+ const char* rowsen, const double* rowrhs,
+ const double* rowrng);
+ /** */
+ virtual void deleteRows(const int num, const int * rowIndices);
+
+ //-----------------------------------------------------------------------
+ /** Apply a collection of row cuts which are all effective.
+ applyCuts seems to do one at a time which seems inefficient.
+ */
+ virtual void applyRowCuts(int numberCuts, const OsiRowCut * cuts);
+ /** Apply a collection of row cuts which are all effective.
+ applyCuts seems to do one at a time which seems inefficient.
+ This uses array of pointers
+ */
+ virtual void applyRowCuts(int numberCuts, const OsiRowCut ** cuts);
+ //@}
+ //@}
+
+ //---------------------------------------------------------------------------
+
+public:
+
+ /**@name Methods to input a problem */
+ //@{
+ /** Load in an problem by copying the arguments (the constraints on the
+ rows are given by lower and upper bounds). If a pointer is 0 then the
+ following values are the default:
+ <ul>
+ <li> <code>colub</code>: all columns have upper bound infinity
+ <li> <code>collb</code>: all columns have lower bound 0
+ <li> <code>rowub</code>: all rows have upper bound infinity
+ <li> <code>rowlb</code>: all rows have lower bound -infinity
+ <li> <code>obj</code>: all variables have 0 objective coefficient
+ </ul>
+ */
+ virtual void loadProblem(const CoinPackedMatrix& matrix,
+ const double* collb, const double* colub,
+ const double* obj,
+ const double* rowlb, const double* rowub);
+
+ /** Load in an problem by assuming ownership of the arguments (the
+ constraints on the rows are given by lower and upper bounds). For
+ default values see the previous method. <br>
+ <strong>WARNING</strong>: The arguments passed to this method will be
+ freed using the C++ <code>delete</code> and <code>delete[]</code>
+ functions.
+ */
+ virtual void assignProblem(CoinPackedMatrix*& matrix,
+ double*& collb, double*& colub, double*& obj,
+ double*& rowlb, double*& rowub);
+
+ /** Load in an problem by copying the arguments (the constraints on the
+ rows are given by sense/rhs/range triplets). If a pointer is 0 then the
+ following values are the default:
+ <ul>
+ <li> <code>colub</code>: all columns have upper bound infinity
+ <li> <code>collb</code>: all columns have lower bound 0
+ <li> <code>obj</code>: all variables have 0 objective coefficient
+ <li> <code>rowsen</code>: all rows are >=
+ <li> <code>rowrhs</code>: all right hand sides are 0
+ <li> <code>rowrng</code>: 0 for the ranged rows
+ </ul>
+ */
+ virtual void loadProblem(const CoinPackedMatrix& matrix,
+ const double* collb, const double* colub,
+ const double* obj,
+ const char* rowsen, const double* rowrhs,
+ const double* rowrng);
+
+ /** Load in an problem by assuming ownership of the arguments (the
+ constraints on the rows are given by sense/rhs/range triplets). For
+ default values see the previous method. <br>
+ <strong>WARNING</strong>: The arguments passed to this method will be
+ freed using the C++ <code>delete</code> and <code>delete[]</code>
+ functions.
+ */
+ virtual void assignProblem(CoinPackedMatrix*& matrix,
+ double*& collb, double*& colub, double*& obj,
+ char*& rowsen, double*& rowrhs,
+ double*& rowrng);
+
+ /** Just like the other loadProblem() methods except that the matrix is
+ given in a standard column major ordered format (without gaps). */
+ virtual void loadProblem(const int numcols, const int numrows,
+ const CoinBigIndex * start, const int* index,
+ const double* value,
+ const double* collb, const double* colub,
+ const double* obj,
+ const double* rowlb, const double* rowub);
+
+ /** Just like the other loadProblem() methods except that the matrix is
+ given in a standard column major ordered format (without gaps). */
+ virtual void loadProblem(const int numcols, const int numrows,
+ const CoinBigIndex * start, const int* index,
+ const double* value,
+ const double* collb, const double* colub,
+ const double* obj,
+ const char* rowsen, const double* rowrhs,
+ const double* rowrng);
+
+ using OsiSolverInterface::readMps ;
+ /** Read an mps file from the given filename (defaults to Osi reader) - returns
+ number of errors (see OsiMpsReader class) */
+ virtual int readMps(const char *filename,
+ const char *extension = "mps") ;
+
+ /** Write the problem into an mps file of the given filename.
+ If objSense is non zero then -1.0 forces the code to write a
+ maximization objective and +1.0 to write a minimization one.
+ If 0.0 then solver can do what it wants */
+ virtual void writeMps(const char *filename,
+ const char *extension = "mps",
+ double objSense=0.0) const;
+ /** Write the problem into an mps file of the given filename,
+ names may be null. formatType is
+ 0 - normal
+ 1 - extra accuracy
+ 2 - IEEE hex (later)
+
+ Returns non-zero on I/O error
+ */
+ virtual int writeMpsNative(const char *filename,
+ const char ** rowNames, const char ** columnNames,
+ int formatType=0,int numberAcross=2,
+ double objSense=0.0) const ;
+ //@}
+
+ /**@name Message handling (extra for Cbc messages).
+ Normally I presume you would want the same language.
+ If not then you could use underlying model pointer */
+ //@{
+ /// Set language
+ void newLanguage(CoinMessages::Language language);
+ void setLanguage(CoinMessages::Language language)
+ {newLanguage(language);}
+ //@}
+ //---------------------------------------------------------------------------
+
+ /**@name Cbc specific public interfaces */
+ //@{
+ /// Get pointer to Cbc model
+ inline CbcModel * getModelPtr() const
+ { return modelPtr_;}
+ /// Get pointer to underlying solver
+ inline OsiSolverInterface * getRealSolverPtr() const
+ { return modelPtr_->solver();}
+ /// Set cutoff bound on the objective function.
+ inline void setCutoff(double value)
+ { modelPtr_->setCutoff(value);}
+ /// Get the cutoff bound on the objective function - always as minimize
+ inline double getCutoff() const
+ { return modelPtr_->getCutoff();}
+ /// Set the CbcModel::CbcMaxNumNode maximum node limit
+ inline void setMaximumNodes( int value)
+ { modelPtr_->setMaximumNodes(value);}
+ /// Get the CbcModel::CbcMaxNumNode maximum node limit
+ inline int getMaximumNodes() const
+ { return modelPtr_->getMaximumNodes();}
+ /// Set the CbcModel::CbcMaxNumSol maximum number of solutions
+ inline void setMaximumSolutions( int value)
+ { modelPtr_->setMaximumSolutions(value);}
+ /// Get the CbcModel::CbcMaxNumSol maximum number of solutions
+ inline int getMaximumSolutions() const
+ { return modelPtr_->getMaximumSolutions();}
+ /// Set the CbcModel::CbcMaximumSeconds maximum number of seconds
+ inline void setMaximumSeconds( double value)
+ { modelPtr_->setMaximumSeconds(value);}
+ /// Get the CbcModel::CbcMaximumSeconds maximum number of seconds
+ inline double getMaximumSeconds() const
+ { return modelPtr_->getMaximumSeconds();}
+ /// Node limit reached?
+ inline bool isNodeLimitReached() const
+ { return modelPtr_->isNodeLimitReached();}
+ /// Solution limit reached?
+ inline bool isSolutionLimitReached() const
+ { return modelPtr_->isSolutionLimitReached();}
+ /// Get how many Nodes it took to solve the problem.
+ inline int getNodeCount() const
+ { return modelPtr_->getNodeCount();}
+ /// Final status of problem - 0 finished, 1 stopped, 2 difficulties
+ inline int status() const
+ { return modelPtr_->status();}
+ /** Pass in a message handler
+
+ It is the client's responsibility to destroy a message handler installed
+ by this routine; it will not be destroyed when the solver interface is
+ destroyed.
+ */
+ virtual void passInMessageHandler(CoinMessageHandler * handler);
+ //@}
+
+ //---------------------------------------------------------------------------
+
+ /**@name Constructors and destructors */
+ //@{
+ /// Default Constructor
+ OsiCbcSolverInterface (OsiSolverInterface * solver=NULL,
+ CbcStrategy * strategy=NULL);
+
+ /// Clone
+ virtual OsiSolverInterface * clone(bool copyData = true) const;
+
+ /// Copy constructor
+ OsiCbcSolverInterface (const OsiCbcSolverInterface &);
+#if 0
+ /// Borrow constructor - only delete one copy
+ OsiCbcSolverInterface (CbcModel * rhs, bool reallyOwn=false);
+
+ /// Releases so won't error
+ void releaseCbc();
+#endif
+ /// Assignment operator
+ OsiCbcSolverInterface & operator=(const OsiCbcSolverInterface& rhs);
+
+ /// Destructor
+ virtual ~OsiCbcSolverInterface ();
+
+ //@}
+ //---------------------------------------------------------------------------
+
+protected:
+ ///@name Protected methods
+ //@{
+ /** Apply a row cut (append to constraint matrix). */
+ virtual void applyRowCut(const OsiRowCut& rc);
+
+ /** Apply a column cut (adjust one or more bounds). */
+ virtual void applyColCut(const OsiColCut& cc);
+ //@}
+ /**@name Protected member data */
+ //@{
+ /// Cbc model represented by this class instance
+ mutable CbcModel * modelPtr_;
+ //@}
+};
+// So unit test can find out if NDEBUG set
+bool OsiCbcHasNDEBUG();
+
+//#############################################################################
+/** A function that tests the methods in the OsiCbcSolverInterface class. */
+void OsiCbcSolverInterfaceUnitTest(const std::string & mpsDir, const std::string & netlibDir);
+
+#endif