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virtual void | setObjSense (double s) |
| Set objective function sense (1 for min (default), -1 for max,) More...
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virtual void | setColSolution (const double *colsol) |
| Set the primal solution column values. More...
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virtual void | setRowPrice (const double *rowprice) |
| Set dual solution vector. More...
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virtual void | initialSolve () |
| Solve initial LP relaxation. More...
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virtual void | resolve () |
| Resolve an LP relaxation after problem modification. More...
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virtual void | branchAndBound () |
| Invoke solver's built-in enumeration algorithm. More...
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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.
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bool | setIntParam (OsiIntParam key, int value) |
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bool | setDblParam (OsiDblParam key, double value) |
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bool | setStrParam (OsiStrParam key, const std::string &value) |
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bool | getIntParam (OsiIntParam key, int &value) const |
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bool | getDblParam (OsiDblParam key, double &value) const |
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bool | getStrParam (OsiStrParam key, std::string &value) const |
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virtual bool | setHintParam (OsiHintParam key, bool yesNo=true, OsiHintStrength strength=OsiHintTry, void *otherInformation=NULL) |
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virtual bool | getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength, void *&otherInformation) const |
| Get a hint parameter. More...
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virtual bool | getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength) const |
| Get a hint parameter. More...
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virtual bool | isAbandoned () const |
| Are there a numerical difficulties? More...
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virtual bool | isProvenOptimal () const |
| Is optimality proven? More...
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virtual bool | isProvenPrimalInfeasible () const |
| Is primal infeasiblity proven? More...
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virtual bool | isProvenDualInfeasible () const |
| Is dual infeasiblity proven? More...
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virtual bool | isPrimalObjectiveLimitReached () const |
| Is the given primal objective limit reached? More...
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virtual bool | isDualObjectiveLimitReached () const |
| Is the given dual objective limit reached? More...
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virtual bool | isIterationLimitReached () const |
| Iteration limit reached? More...
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virtual CoinWarmStart * | getEmptyWarmStart () const |
| Get an empty warm start object. More...
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virtual CoinWarmStart * | getWarmStart () const |
| Get warmstarting information. More...
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virtual bool | setWarmStart (const CoinWarmStart *warmstart) |
| Set warmstarting information. More...
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The user can create a hotstart (a snapshot) of the optimization process then reoptimize over and over again always starting from there.
NOTE: between hotstarted optimizations only bound changes are allowed.
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virtual void | markHotStart () |
| Create a hotstart point of the optimization process. More...
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virtual void | solveFromHotStart () |
| Optimize starting from the hotstart. More...
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virtual void | unmarkHotStart () |
| Delete the snapshot. More...
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virtual int | getNumCols () const |
| Get number of columns. More...
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virtual int | getNumRows () const |
| Get number of rows. More...
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virtual CoinBigIndex | getNumElements () const |
| Get number of nonzero elements. More...
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virtual const double * | getColLower () const |
| Get pointer to array[getNumCols()] of column lower bounds. More...
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virtual const double * | getColUpper () const |
| Get pointer to array[getNumCols()] of column upper bounds. More...
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virtual const char * | getRowSense () const |
| Get pointer to array[getNumRows()] of row constraint senses. More...
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virtual const double * | getRightHandSide () const |
| Get pointer to array[getNumRows()] of rows right-hand sides. More...
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virtual const double * | getRowRange () const |
| Get pointer to array[getNumRows()] of row ranges. More...
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virtual const double * | getRowLower () const |
| Get pointer to array[getNumRows()] of row lower bounds. More...
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virtual const double * | getRowUpper () const |
| Get pointer to array[getNumRows()] of row upper bounds. More...
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virtual const double * | getObjCoefficients () const |
| Get pointer to array[getNumCols()] of objective function coefficients. More...
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virtual double | getObjSense () const |
| Get objective function sense (1 for min (default), -1 for max) More...
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virtual bool | isContinuous (int colNumber) const |
| Return true if column is continuous. More...
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virtual const CoinPackedMatrix * | getMatrixByRow () const |
| Get pointer to row-wise copy of matrix. More...
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virtual const CoinPackedMatrix * | getMatrixByCol () const |
| Get pointer to column-wise copy of matrix. More...
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virtual double | getInfinity () const |
| Get solver's value for infinity. More...
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virtual const double * | getColSolution () const |
| Get pointer to array[getNumCols()] of primal solution vector. More...
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virtual const double * | getRowPrice () const |
| Get pointer to array[getNumRows()] of dual prices. More...
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virtual const double * | getReducedCost () const |
| Get a pointer to array[getNumCols()] of reduced costs. More...
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virtual const double * | getRowActivity () const |
| Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector. More...
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virtual double | getObjValue () const |
| Get objective function value. More...
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virtual int | getIterationCount () const |
| Get how many iterations it took to solve the problem (whatever "iteration" mean to the solver. More...
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virtual std::vector< double *> | getDualRays (int maxNumRays, bool fullRay=false) const |
| Get as many dual rays as the solver can provide. More...
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virtual std::vector< double *> | getPrimalRays (int maxNumRays) const |
| Get as many primal rays as the solver can provide. More...
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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.
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virtual std::string | dfltRowColName (char rc, int ndx, unsigned digits=7) const |
| Generate a standard name of the form Rnnnnnnn or Cnnnnnnn. More...
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virtual std::string | getObjName (std::string::size_type maxLen=std::string::npos) const |
| Return the name of the objective function. More...
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virtual void | setObjName (std::string name) |
| Set the name of the objective function. More...
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virtual std::string | getRowName (int rowIndex, std::string::size_type maxLen=std::string::npos) const |
| Return the name of the row. More...
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virtual const OsiNameVec & | getRowNames () |
| Return a pointer to a vector of row names. More...
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virtual void | setRowName (int ndx, std::string name) |
| Set a row name. More...
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virtual void | setRowNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart) |
| Set multiple row names. More...
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virtual void | deleteRowNames (int tgtStart, int len) |
| Delete len row names starting at index tgtStart. More...
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virtual std::string | getColName (int colIndex, std::string::size_type maxLen=std::string::npos) const |
| Return the name of the column. More...
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virtual const OsiNameVec & | getColNames () |
| Return a pointer to a vector of column names. More...
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virtual void | setColName (int ndx, std::string name) |
| Set a column name. More...
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virtual void | setColNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart) |
| Set multiple column names. More...
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virtual void | deleteColNames (int tgtStart, int len) |
| Delete len column names starting at index tgtStart. More...
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virtual void | setObjCoeff (int elementIndex, double elementValue) |
| Set an objective function coefficient. More...
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virtual void | setColLower (int elementIndex, double elementValue) |
| Set a single column lower bound
Use -DBL_MAX for -infinity. More...
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virtual void | setColUpper (int elementIndex, double elementValue) |
| Set a single column upper bound
Use DBL_MAX for infinity. More...
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virtual void | setColBounds (int elementIndex, double lower, double upper) |
| Set a single column lower and upper bound. More...
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virtual void | setColSetBounds (const int *indexFirst, const int *indexLast, const double *boundList) |
| Set the bounds on a number of columns simultaneously
The default implementation just invokes setColLower() and setColUpper() over and over again. More...
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virtual void | setRowLower (int elementIndex, double elementValue) |
| Set a single row lower bound
Use -DBL_MAX for -infinity. More...
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virtual void | setRowUpper (int elementIndex, double elementValue) |
| Set a single row upper bound
Use DBL_MAX for infinity. More...
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virtual void | setRowBounds (int elementIndex, double lower, double upper) |
| Set a single row lower and upper bound. More...
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virtual void | setRowType (int index, char sense, double rightHandSide, double range) |
| Set the type of a single row
More...
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virtual void | setRowSetBounds (const int *indexFirst, const int *indexLast, const double *boundList) |
| Set the bounds on a number of rows simultaneously
The default implementation just invokes setRowLower() and setRowUpper() over and over again. More...
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virtual void | setRowSetTypes (const int *indexFirst, const int *indexLast, const char *senseList, const double *rhsList, const double *rangeList) |
| Set the type of a number of rows simultaneously
The default implementation just invokes setRowType() over and over again. More...
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virtual void | setContinuous (int index) |
| Set the index-th variable to be a continuous variable. More...
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virtual void | setInteger (int index) |
| Set the index-th variable to be an integer variable. More...
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virtual void | setContinuous (const int *indices, int len) |
| Set the variables listed in indices (which is of length len) to be continuous variables. More...
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virtual void | setInteger (const int *indices, int len) |
| Set the variables listed in indices (which is of length len) to be integer variables. More...
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Note that if a column is added then by default it will correspond to a continuous variable.
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virtual void | addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj) |
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virtual void | addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj) |
| Add a column (primal variable) to the problem. More...
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virtual void | addCols (const int numcols, const CoinPackedVectorBase *const *cols, const double *collb, const double *colub, const double *obj) |
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virtual void | deleteCols (const int num, const int *colIndices) |
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virtual void | addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub) |
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virtual void | addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng) |
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virtual void | addRows (const int numrows, const CoinPackedVectorBase *const *rows, const double *rowlb, const double *rowub) |
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virtual void | addRows (const int numrows, const CoinPackedVectorBase *const *rows, const char *rowsen, const double *rowrhs, const double *rowrng) |
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virtual void | deleteRows (const int num, const int *rowIndices) |
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virtual void | applyRowCuts (int numberCuts, const OsiRowCut *cuts) |
| Apply a collection of row cuts which are all effective. More...
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virtual void | applyRowCuts (int numberCuts, const OsiRowCut **cuts) |
| Apply a collection of row cuts which are all effective. More...
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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 copying the arguments (the constraints on the rows are given by lower and upper bounds). More...
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virtual void | assignProblem (CoinPackedMatrix *&matrix, double *&collb, double *&colub, double *&obj, double *&rowlb, double *&rowub) |
| Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by lower and upper bounds). More...
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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 copying the arguments (the constraints on the rows are given by sense/rhs/range triplets). More...
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virtual void | assignProblem (CoinPackedMatrix *&matrix, double *&collb, double *&colub, double *&obj, char *&rowsen, double *&rowrhs, double *&rowrng) |
| Load in an problem by assuming ownership of the arguments (the constraints on the rows are given by sense/rhs/range triplets). More...
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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). More...
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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) |
| Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps). More...
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virtual int | readMps (const char *filename, const char *extension="mps") |
| Read an mps file from the given filename (defaults to Osi reader) - returns number of errors (see OsiMpsReader class) More...
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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. More...
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virtual int | writeMpsNative (const char *filename, const char **rowNames, const char **columnNames, int formatType=0, int numberAcross=2, double objSense=0.0) const |
| Write the problem into an mps file of the given filename, names may be null. More...
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Normally I presume you would want the same language.
If not then you could use underlying model pointer
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void | newLanguage (CoinMessages::Language language) |
| Set language. More...
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void | setLanguage (CoinMessages::Language language) |
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CbcModel * | getModelPtr () const |
| Get pointer to Cbc model. More...
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OsiSolverInterface * | getRealSolverPtr () const |
| Get pointer to underlying solver. More...
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void | setCutoff (double value) |
| Set cutoff bound on the objective function. More...
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double | getCutoff () const |
| Get the cutoff bound on the objective function - always as minimize. More...
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void | setMaximumNodes (int value) |
| Set the CbcModel::CbcMaxNumNode maximum node limit. More...
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int | getMaximumNodes () const |
| Get the CbcModel::CbcMaxNumNode maximum node limit. More...
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void | setMaximumSolutions (int value) |
| Set the CbcModel::CbcMaxNumSol maximum number of solutions. More...
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int | getMaximumSolutions () const |
| Get the CbcModel::CbcMaxNumSol maximum number of solutions. More...
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void | setMaximumSeconds (double value) |
| Set the CbcModel::CbcMaximumSeconds maximum number of seconds. More...
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double | getMaximumSeconds () const |
| Get the CbcModel::CbcMaximumSeconds maximum number of seconds. More...
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bool | isNodeLimitReached () const |
| Node limit reached? More...
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bool | isSolutionLimitReached () const |
| Solution limit reached? More...
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int | getNodeCount () const |
| Get how many Nodes it took to solve the problem. More...
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int | status () const |
| Final status of problem - 0 finished, 1 stopped, 2 difficulties. More...
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virtual void | passInMessageHandler (CoinMessageHandler *handler) |
| Pass in a message handler. More...
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| OsiCbcSolverInterface (OsiSolverInterface *solver=NULL, CbcStrategy *strategy=NULL) |
| Default Constructor. More...
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virtual OsiSolverInterface * | clone (bool copyData=true) const |
| Clone. More...
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| OsiCbcSolverInterface (const OsiCbcSolverInterface &) |
| Copy constructor. More...
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OsiCbcSolverInterface & | operator= (const OsiCbcSolverInterface &rhs) |
| Assignment operator. More...
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virtual | ~OsiCbcSolverInterface () |
| Destructor. More...
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