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author | Harpreet | 2016-09-03 00:36:51 +0530 |
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committer | Harpreet | 2016-09-03 00:36:51 +0530 |
commit | a0d9443af147e949c1e6a01ac24749d12593ec5b (patch) | |
tree | 1a1955c5482ae608fd7f618b06f4ecc6a0d39a23 /thirdparty/linux/include/coin/OsiCbcSolverInterface.hpp | |
parent | 4b64cf486f5c999fd8167758cae27839f3b50848 (diff) | |
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cbcintlinprog added
Diffstat (limited to 'thirdparty/linux/include/coin/OsiCbcSolverInterface.hpp')
-rw-r--r-- | thirdparty/linux/include/coin/OsiCbcSolverInterface.hpp | 764 |
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diff --git a/thirdparty/linux/include/coin/OsiCbcSolverInterface.hpp b/thirdparty/linux/include/coin/OsiCbcSolverInterface.hpp new file mode 100644 index 0000000..3250a00 --- /dev/null +++ b/thirdparty/linux/include/coin/OsiCbcSolverInterface.hpp @@ -0,0 +1,764 @@ +// $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 |