OsiNullSolverInterface Class Reference

#include <OsiNullSolverInterface.hpp>

Inheritance diagram for OsiNullSolverInterface:

Collaboration diagram for OsiNullSolverInterface:

Public Member Functions
Solve methods
virtual void	initialSolve ()
	Solve initial LP relaxation. More...
virtual void	resolve ()
	Resolve an LP relaxation after problem modification. More...
virtual void	branchAndBound ()
	Invoke solver's built-in enumeration algorithm. More...
void	copyParameters (OsiNullSolverInterface &rhs)
	Solve initial LP relaxation. More...
virtual void	initialSolve ()
	Solve initial LP relaxation. More...
virtual void	resolve ()
	Resolve an LP relaxation after problem modification. More...
virtual void	branchAndBound ()
	Invoke solver's built-in enumeration algorithm. More...
void	copyParameters (OsiNullSolverInterface &rhs)
	Solve initial LP relaxation. More...
Methods returning info on how the solution process terminated
virtual bool	isAbandoned () const
	Are there numerical difficulties? More...
virtual bool	isProvenOptimal () const
	Is optimality proven? More...
virtual bool	isProvenPrimalInfeasible () const
	Is primal infeasiblity proven? More...
virtual bool	isProvenDualInfeasible () const
	Is dual infeasiblity proven? More...
virtual bool	isPrimalObjectiveLimitReached () const
	Is the given primal objective limit reached? More...
virtual bool	isDualObjectiveLimitReached () const
	Is the given dual objective limit reached? More...
virtual bool	isIterationLimitReached () const
	Iteration limit reached? More...
virtual bool	isAbandoned () const
	Are there numerical difficulties? More...
virtual bool	isProvenOptimal () const
	Is optimality proven? More...
virtual bool	isProvenPrimalInfeasible () const
	Is primal infeasiblity proven? More...
virtual bool	isProvenDualInfeasible () const
	Is dual infeasiblity proven? More...
virtual bool	isPrimalObjectiveLimitReached () const
	Is the given primal objective limit reached? More...
virtual bool	isDualObjectiveLimitReached () const
	Is the given dual objective limit reached? More...
virtual bool	isIterationLimitReached () const
	Iteration limit reached? More...
Warm start methods
Note that the warm start methods return a generic CoinWarmStart object. The precise characteristics of this object are solver-dependent. Clients who wish to maintain a maximum degree of solver independence should take care to avoid unnecessary assumptions about the properties of a warm start object.
virtual CoinWarmStart *	getEmptyWarmStart () const
	Get an empty warm start object. More...
virtual CoinWarmStart *	getWarmStart () const
	Get warm start information. More...
virtual bool	setWarmStart (const CoinWarmStart *warmstart)
	Set warm start information. More...
virtual CoinWarmStart *	getEmptyWarmStart () const
	Get an empty warm start object. More...
virtual CoinWarmStart *	getWarmStart () const
	Get warm start information. More...
virtual bool	setWarmStart (const CoinWarmStart *warmstart)
	Set warm start information. More...
Problem query methods
Querying a problem that has no data associated with it will 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.
virtual int	getNumCols () const
	Get number of columns. More...
virtual int	getNumRows () const
	Get number of rows. More...
virtual int	getNumElements () const
	Get number of nonzero elements. More...
virtual int	getNumIntegers () const
	Get number of integer variables. More...
virtual const double *	getColLower () const
	Get pointer to array[getNumCols()] of column lower bounds. More...
virtual const double *	getColUpper () const
	Get pointer to array[getNumCols()] of column upper bounds. More...
virtual const char *	getRowSense () const
	Get pointer to array[getNumRows()] of row constraint senses. More...
virtual const double *	getRightHandSide () const
	Get a pointer to an array[getNumRows()] of row right-hand sides. More...
virtual const double *	getRowRange () const
	Get number of columns. More...
virtual const double *	getRowLower () const
	Get pointer to array[getNumRows()] of row lower bounds. More...
virtual const double *	getRowUpper () const
	Get pointer to array[getNumRows()] of row upper bounds. More...
virtual const double *	getObjCoefficients () const
	Get pointer to array[getNumCols()] of objective function coefficients. More...
virtual double	getObjSense () const
	Get objective function sense (1 for min (default), -1 for max) More...
virtual bool	isContinuous (int colIndex) const
	Return true if variable is continuous. More...
virtual bool	isBinary (int colIndex) const
	Return true if variable is binary. More...
virtual bool	isInteger (int colIndex) const
	Return true if column is integer. More...
virtual const CoinPackedMatrix *	getMatrixByRow () const
	Get pointer to row-wise copy of matrix. More...
virtual const CoinPackedMatrix *	getMatrixByCol () const
	Get pointer to column-wise copy of matrix. More...
virtual double	getInfinity () const
	Get solver's value for infinity. More...
virtual int	getNumCols () const
	Get number of columns. More...
virtual int	getNumRows () const
	Get number of rows. More...
virtual int	getNumElements () const
	Get number of nonzero elements. More...
virtual int	getNumIntegers () const
	Get number of integer variables. More...
virtual const double *	getColLower () const
	Get pointer to array[getNumCols()] of column lower bounds. More...
virtual const double *	getColUpper () const
	Get pointer to array[getNumCols()] of column upper bounds. More...
virtual const char *	getRowSense () const
	Get pointer to array[getNumRows()] of row constraint senses. More...
virtual const double *	getRightHandSide () const
	Get a pointer to an array[getNumRows()] of row right-hand sides. More...
virtual const double *	getRowRange () const
	Get number of columns. More...
virtual const double *	getRowLower () const
	Get pointer to array[getNumRows()] of row lower bounds. More...
virtual const double *	getRowUpper () const
	Get pointer to array[getNumRows()] of row upper bounds. More...
virtual const double *	getObjCoefficients () const
	Get pointer to array[getNumCols()] of objective function coefficients. More...
virtual double	getObjSense () const
	Get objective function sense (1 for min (default), -1 for max) More...
virtual bool	isContinuous (int colIndex) const
	Return true if variable is continuous. More...
virtual bool	isBinary (int colIndex) const
	Return true if variable is binary. More...
virtual bool	isInteger (int colIndex) const
	Return true if column is integer. More...
virtual const CoinPackedMatrix *	getMatrixByRow () const
	Get pointer to row-wise copy of matrix. More...
virtual const CoinPackedMatrix *	getMatrixByCol () const
	Get pointer to column-wise copy of matrix. More...
virtual double	getInfinity () const
	Get solver's value for infinity. More...
Solution query methods
virtual const double *	getColSolution () const
	Get pointer to array[getNumCols()] of primal variable values. More...
virtual const double *	getRowPrice () const
	Get pointer to array[getNumRows()] of dual variable values. More...
virtual const double *	getReducedCost () const
	Get a pointer to array[getNumCols()] of reduced costs. More...
virtual const double *	getRowActivity () const
	Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector). More...
virtual double	getObjValue () const
	Get objective function value. More...
virtual int	getIterationCount () const
	Get the number of iterations it took to solve the problem (whatever ``iteration'' means to the solver). More...
virtual std::vector< double * >	getDualRays (int maxNumRays) const
	Get as many dual rays as the solver can provide. More...
virtual std::vector< double * >	getPrimalRays (int maxNumRays) const
	Get pointer to array[getNumCols()] of primal variable values. More...
virtual const double *	getColSolution () const
	Get pointer to array[getNumCols()] of primal variable values. More...
virtual const double *	getRowPrice () const
	Get pointer to array[getNumRows()] of dual variable values. More...
virtual const double *	getReducedCost () const
	Get a pointer to array[getNumCols()] of reduced costs. More...
virtual const double *	getRowActivity () const
	Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector). More...
virtual double	getObjValue () const
	Get objective function value. More...
virtual int	getIterationCount () const
	Get the number of iterations it took to solve the problem (whatever ``iteration'' means to the solver). More...
virtual std::vector< double * >	getDualRays (int maxNumRays) const
	Get as many dual rays as the solver can provide. More...
virtual std::vector< double * >	getPrimalRays (int maxNumRays) const
	Get pointer to array[getNumCols()] of primal variable values. More...
Methods to modify the objective, bounds, and solution
For functions which take a set of indices as parameters (setObjCoeffSet(), setColSetBounds(), setRowSetBounds(), setRowSetTypes()), the parameters follow the C++ STL iterator convention: indexFirst points to the first index in the set, and indexLast points to a position one past the last index in the set.
virtual void	setObjCoeff (int elementIndex, double elementValue)
	Set an objective function coefficient. More...
virtual void	setColLower (int elementIndex, double elementValue)
	Set a single column lower bound. More...
virtual void	setColUpper (int elementIndex, double elementValue)
	Set a single column upper bound. More...
virtual void	setRowLower (int elementIndex, double elementValue)
	Set a single row lower bound. More...
virtual void	setRowUpper (int elementIndex, double elementValue)
	Set a single row upper bound. More...
virtual void	setRowType (int index, char sense, double rightHandSide, double range)
	Set the type of a single row. More...
virtual void	setObjSense (double s)
	Set the objective function sense. More...
virtual void	setColType (const char *colType)
	Set characters for columns types. More...
virtual void	setColSolution (const double *colsol)
	Set an objective function coefficient. More...
virtual void	setRowPrice (const double *rowprice)
	Set dual solution variable values. More...
virtual void	setObjCoeff (int elementIndex, double elementValue)
	Set an objective function coefficient. More...
virtual void	setColLower (int elementIndex, double elementValue)
	Set a single column lower bound. More...
virtual void	setColUpper (int elementIndex, double elementValue)
	Set a single column upper bound. More...
virtual void	setRowLower (int elementIndex, double elementValue)
	Set a single row lower bound. More...
virtual void	setRowUpper (int elementIndex, double elementValue)
	Set a single row upper bound. More...
virtual void	setRowType (int index, char sense, double rightHandSide, double range)
	Set the type of a single row. More...
virtual void	setObjSense (double s)
	Set the objective function sense. More...
virtual void	setColType (const char *colType)
	Set characters for columns types. More...
virtual void	setColSolution (const double *colsol)
	Set an objective function coefficient. More...
virtual void	setRowPrice (const double *rowprice)
	Set dual solution variable values. More...
Methods to set variable type
virtual void	setContinuous (int index)
	Set the index-th variable to be a continuous variable. More...
virtual void	setInteger (int index)
	Set the index-th variable to be an integer variable. More...
virtual void	setContinuous (int index)
	Set the index-th variable to be a continuous variable. More...
virtual void	setInteger (int index)
	Set the index-th variable to be an integer variable. More...
Methods to modify the constraint system.
Set the variables listed in indices (which is of length len) to be continuous variables Note that new columns are added as continuous variables.
virtual void	addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)
	Add a column (primal variable) to the problem. More...
virtual void	deleteCols (const int num, const int *colIndices)
	Remove a set of columns (primal variables) from the problem. More...
virtual void	addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)
	Add a row (constraint) to the problem. More...
virtual void	addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)
	Add a column (primal variable) to the problem. More...
virtual void	deleteRows (const int num, const int *rowIndices)
	Delete a set of rows (constraints) from the problem. More...
virtual void	addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj)
	Add a column (primal variable) to the problem. More...
virtual void	deleteCols (const int num, const int *colIndices)
	Remove a set of columns (primal variables) from the problem. More...
virtual void	addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub)
	Add a row (constraint) to the problem. More...
virtual void	addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng)
	Add a column (primal variable) to the problem. More...
virtual void	deleteRows (const int num, const int *rowIndices)
	Delete a set of rows (constraints) from the problem. More...
Methods to input a problem
void	loadDataAndSolution (const CoinPackedMatrix &rowMatrix, const CoinPackedMatrix &colMatrix, const double *collb, const double *colub, const double *obj, const double *rowlb, const double *rowub, const char *colType, const double *primalSol, const double infinity)
	Load in an problem by copying the arguments (the constraints on the rows are given by lower and upper bounds). More...
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...
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...
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...
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...
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...
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...
virtual void	writeMps (const char *filename, const char *extension="mps", double objSense=0.0) const
	Write the problem in MPS format to the specified file. More...
void	loadDataAndSolution (const CoinPackedMatrix &rowMatrix, const CoinPackedMatrix &colMatrix, const double *collb, const double *colub, const double *obj, const double *rowlb, const double *rowub, const char *colType, const double *primalSol, const double infinity)
	Load in an problem by copying the arguments (the constraints on the rows are given by lower and upper bounds). More...
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...
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...
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...
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...
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...
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...
virtual void	writeMps (const char *filename, const char *extension="mps", double objSense=0.0) const
	Write the problem in MPS format to the specified file. More...
Constructors and destructors
	OsiNullSolverInterface ()
	Default Constructor. More...
virtual OsiNullSolverInterface *	clone (bool copyData=true) const
	Clone. More...
	OsiNullSolverInterface (const OsiNullSolverInterface &)
	Copy constructor (disabled) More...
OsiNullSolverInterface &	operator= (const OsiNullSolverInterface &rhs)
	Assignment operator (disabled) More...
virtual	~OsiNullSolverInterface ()
	Destructor. More...
	OsiNullSolverInterface ()
	Default Constructor. More...
virtual OsiNullSolverInterface *	clone (bool copyData=true) const
	Clone. More...
	OsiNullSolverInterface (const OsiNullSolverInterface &)
	Copy constructor (disabled) More...
OsiNullSolverInterface &	operator= (const OsiNullSolverInterface &rhs)
	Assignment operator (disabled) More...
virtual	~OsiNullSolverInterface ()
	Destructor. More...
Public Member Functions inherited from OsiSolverInterface
virtual bool	setIntParam (OsiIntParam key, int value)
	Set an integer parameter. More...
virtual bool	setDblParam (OsiDblParam key, double value)
	Set a double parameter. More...
virtual bool	setStrParam (OsiStrParam key, const std::string &value)
	Set a string parameter. More...
virtual bool	setHintParam (OsiHintParam key, bool yesNo=true, OsiHintStrength strength=OsiHintTry, void *=NULL)
	Set a hint parameter. More...
virtual bool	getIntParam (OsiIntParam key, int &value) const
	Get an integer parameter. More...
virtual bool	getDblParam (OsiDblParam key, double &value) const
	Get a double parameter. More...
virtual bool	getStrParam (OsiStrParam key, std::string &value) const
	Get a string parameter. More...
virtual bool	getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength, void *&otherInformation) const
	Get a hint parameter (all information) More...
virtual bool	getHintParam (OsiHintParam key, bool &yesNo, OsiHintStrength &strength) const
	Get a hint parameter (sense and strength only) More...
virtual bool	getHintParam (OsiHintParam key, bool &yesNo) const
	Get a hint parameter (sense only) More...
void	copyParameters (OsiSolverInterface &rhs)
	Copy all parameters in this section from one solver to another. More...
double	getIntegerTolerance () const
	Return the integrality tolerance of the underlying solver. More...
virtual CoinWarmStart *	getPointerToWarmStart (bool &mustDelete)
	Get warm start information. More...
virtual void	markHotStart ()
	Create a hot start snapshot of the optimization process. More...
virtual void	solveFromHotStart ()
	Optimize starting from the hot start snapshot. More...
virtual void	unmarkHotStart ()
	Delete the hot start snapshot. More...
virtual bool	isIntegerNonBinary (int colIndex) const
	Return true if the variable is general integer. More...
virtual bool	isFreeBinary (int colIndex) const
	Return true if the variable is binary and not fixed. More...
const char *	columnType (bool refresh=false) const
	Return an array[getNumCols()] of column types. More...
void	setColumnType (int iColumn, char type)
	Set column type. More...
virtual const char *	getColType (bool refresh=false) const
	Return an array[getNumCols()] of column types. More...
virtual CoinPackedMatrix *	getMutableMatrixByRow () const
	Get a pointer to a mutable row-wise copy of the matrix. More...
virtual CoinPackedMatrix *	getMutableMatrixByCol () const
	Get a pointer to a mutable column-wise copy of the matrix. More...
virtual const double *	getStrictColSolution ()
	Get a pointer to an array[getNumCols()] of primal variable values guaranteed to be between the column lower and upper bounds. More...
virtual std::vector< double * >	getDualRays (int maxNumRays, bool fullRay=false) const =0
	Get as many dual rays as the solver can provide. More...
virtual OsiVectorInt	getFractionalIndices (const double etol=1.e-05) const
	Get vector of indices of primal variables which are integer variables but have fractional values in the current solution. More...
virtual void	setObjCoeffSet (const int *indexFirst, const int *indexLast, const double *coeffList)
	Set a set of objective function coefficients. More...
virtual void	setObjective (const double *array)
	Set the objective coefficients for all columns. More...
virtual void	setColLower (const double *array)
	Set the lower bounds for all columns. More...
virtual void	setColUpper (const double *array)
	Set the upper bounds for all columns. More...
virtual void	setColBounds (int elementIndex, double lower, double upper)
	Set a single column lower and upper bound. More...
virtual void	setColSetBounds (const int *indexFirst, const int *indexLast, const double *boundList)
	Set the upper and lower bounds of a set of columns. More...
virtual void	setRowBounds (int elementIndex, double lower, double upper)
	Set a single row lower and upper bound. More...
virtual void	setRowSetBounds (const int *indexFirst, const int *indexLast, const double *boundList)
	Set the bounds on a set of rows. More...
virtual void	setRowSetTypes (const int *indexFirst, const int *indexLast, const char *senseList, const double *rhsList, const double *rangeList)
	Set the type of a set of rows. More...
virtual int	reducedCostFix (double gap, bool justInteger=true)
	Fix variables at bound based on reduced cost. More...
virtual void	setContinuous (const int *indices, int len)
	Set the variables listed in indices (which is of length len) to be continuous variables. More...
virtual void	setInteger (const int *indices, int len)
	Set the variables listed in indices (which is of length len) to be integer variables. More...
virtual std::string	dfltRowColName (char rc, int ndx, unsigned digits=7) const
	Generate a standard name of the form Rnnnnnnn or Cnnnnnnn. More...
virtual std::string	getObjName (unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
	Return the name of the objective function. More...
virtual void	setObjName (std::string name)
	Set the name of the objective function. More...
virtual std::string	getRowName (int rowIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
	Return the name of the row. More...
virtual const OsiNameVec &	getRowNames ()
	Return a pointer to a vector of row names. More...
virtual void	setRowName (int ndx, std::string name)
	Set a row name. More...
virtual void	setRowNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
	Set multiple row names. More...
virtual void	deleteRowNames (int tgtStart, int len)
	Delete len row names starting at index tgtStart. More...
virtual std::string	getColName (int colIndex, unsigned maxLen=static_cast< unsigned >(std::string::npos)) const
	Return the name of the column. More...
virtual const OsiNameVec &	getColNames ()
	Return a pointer to a vector of column names. More...
virtual void	setColName (int ndx, std::string name)
	Set a column name. More...
virtual void	setColNames (OsiNameVec &srcNames, int srcStart, int len, int tgtStart)
	Set multiple column names. More...
virtual void	deleteColNames (int tgtStart, int len)
	Delete len column names starting at index tgtStart. More...
void	setRowColNames (const CoinMpsIO &mps)
	Set row and column names from a CoinMpsIO object. More...
void	setRowColNames (CoinModel &mod)
	Set row and column names from a CoinModel object. More...
void	setRowColNames (CoinLpIO &mod)
	Set row and column names from a CoinLpIO object. More...
virtual void	addCol (const CoinPackedVectorBase &vec, const double collb, const double colub, const double obj, std::string name)
	Add a named column (primal variable) to the problem. More...
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...
virtual void	addCol (int numberElements, const int *rows, const double *elements, const double collb, const double colub, const double obj, std::string name)
	Add a named column (primal variable) to the problem. More...
virtual void	addCols (const int numcols, const CoinPackedVectorBase *const *cols, const double *collb, const double *colub, const double *obj)
	Add a set of columns (primal variables) to the problem. More...
virtual void	addCols (const int numcols, const CoinBigIndex *columnStarts, const int *rows, const double *elements, const double *collb, const double *colub, const double *obj)
	Add a set of columns (primal variables) to the problem. More...
void	addCols (const CoinBuild &buildObject)
	Add columns using a CoinBuild object. More...
int	addCols (CoinModel &modelObject)
	Add columns from a model object. More...
virtual void	addRow (const CoinPackedVectorBase &vec, const double rowlb, const double rowub, std::string name)
	Add a named row (constraint) to the problem. More...
virtual void	addRow (const CoinPackedVectorBase &vec, const char rowsen, const double rowrhs, const double rowrng, std::string name)
	Add a named row (constraint) to the problem. More...
virtual void	addRow (int numberElements, const int *columns, const double *element, const double rowlb, const double rowub)
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)
	Add a set of rows (constraints) to the problem. More...
virtual void	addRows (const int numrows, const CoinBigIndex *rowStarts, const int *columns, const double *element, const double *rowlb, const double *rowub)
	Add a set of rows (constraints) to the problem. More...
void	addRows (const CoinBuild &buildObject)
	Add rows using a CoinBuild object. More...
int	addRows (CoinModel &modelObject)
virtual void	replaceMatrixOptional (const CoinPackedMatrix &)
	Replace the constraint matrix. More...
virtual void	replaceMatrix (const CoinPackedMatrix &)
	Replace the constraint matrix. More...
virtual void	saveBaseModel ()
	Save a copy of the base model. More...
virtual void	restoreBaseModel (int numberRows)
	Reduce the constraint system to the specified number of constraints. More...
virtual ApplyCutsReturnCode	applyCuts (const OsiCuts &cs, double effectivenessLb=0.0)
	Apply a collection of cuts. More...
virtual void	applyRowCuts (int numberCuts, const OsiRowCut *cuts)
	Apply a collection of row cuts which are all effective. More...
virtual void	applyRowCuts (int numberCuts, const OsiRowCut **cuts)
	Apply a collection of row cuts which are all effective. More...
void	deleteBranchingInfo (int numberDeleted, const int *which)
	Deletes branching information before columns deleted. More...
virtual int	loadFromCoinModel (CoinModel &modelObject, bool keepSolution=false)
	Load a model from a CoinModel object. Return the number of errors encountered. More...
virtual int	readMps (const char *filename, const char *extension="mps")
	Read a problem in MPS format from the given filename. More...
virtual int	readMps (const char *filename, const char *extension, int &numberSets, CoinSet **&sets)
	Read a problem in MPS format from the given full filename. More...
virtual int	readGMPL (const char *filename, const char *dataname=NULL)
	Read a problem in GMPL format from the given filenames. More...
int	writeMpsNative (const char *filename, const char **rowNames, const char **columnNames, int formatType=0, int numberAcross=2, double objSense=0.0, int numberSOS=0, const CoinSet *setInfo=NULL) const
	Write the problem in MPS format to the specified file with more control over the output. More...
virtual void	writeLp (const char *filename, const char *extension="lp", double epsilon=1e-5, int numberAcross=10, int decimals=9, double objSense=0.0, bool useRowNames=true) const
	Write the problem into an Lp file of the given filename with the specified extension. More...
virtual void	writeLp (FILE *fp, double epsilon=1e-5, int numberAcross=10, int decimals=5, double objSense=0.0, bool useRowNames=true) const
	Write the problem into the file pointed to by the parameter fp. More...
int	writeLpNative (const char *filename, char const *const *const rowNames, char const *const *const columnNames, const double epsilon=1.0e-5, const int numberAcross=10, const int decimals=5, const double objSense=0.0, const bool useRowNames=true) const
	Write the problem into an Lp file. More...
int	writeLpNative (FILE *fp, char const *const *const rowNames, char const *const *const columnNames, const double epsilon=1.0e-5, const int numberAcross=10, const int decimals=5, const double objSense=0.0, const bool useRowNames=true) const
	Write the problem into the file pointed to by the parameter fp. More...
virtual int	readLp (const char *filename, const double epsilon=1e-5)
	Read file in LP format from file with name filename. More...
int	readLp (FILE *fp, const double epsilon=1e-5)
	Read file in LP format from the file pointed to by fp. More...
int	differentModel (OsiSolverInterface &other, bool ignoreNames=true)
	Check two models against each other. More...
void	statistics (double &minimumNegative, double &maximumNegative, double &minimumPositive, double &maximumPositive, int type=3) const
	Get some statistics about model - min/max always computed type 0->4 , larger gives more information 0 - Just set min and max values of coefficients. More...
void	setApplicationData (void *appData)
	Set application data. More...
void	setAuxiliaryInfo (OsiAuxInfo *auxiliaryInfo)
	Create a clone of an Auxiliary Information object. More...
void *	getApplicationData () const
	Get application data. More...
OsiAuxInfo *	getAuxiliaryInfo () const
	Get pointer to auxiliary info object. More...
virtual void	passInMessageHandler (CoinMessageHandler *handler)
	Pass in a message handler. More...
void	newLanguage (CoinMessages::Language language)
	Set language. More...
void	setLanguage (CoinMessages::Language language)
	Pass in a message handler. More...
CoinMessageHandler *	messageHandler () const
	Return a pointer to the current message handler. More...
CoinMessages	messages ()
	Return the current set of messages. More...
CoinMessages *	messagesPointer ()
	Return a pointer to the current set of messages. More...
bool	defaultHandler () const
	Return true if default handler. More...
void	findIntegers (bool justCount)
	Identify integer variables and create corresponding objects. More...
virtual int	findIntegersAndSOS (bool justCount)
	Identify integer variables and SOS and create corresponding objects. More...
int	numberObjects () const
	Get the number of objects. More...
void	setNumberObjects (int number)
	Set the number of objects. More...
OsiObject **	objects () const
	Get the array of objects. More...
const OsiObject *	object (int which) const
	Get the specified object. More...
OsiObject *	modifiableObject (int which) const
	Get the specified object. More...
void	deleteObjects ()
	Delete all object information. More...
void	addObjects (int numberObjects, OsiObject **objects)
	Add in object information. More...
double	forceFeasible ()
	Use current solution to set bounds so current integer feasible solution will stay feasible. More...
virtual void	activateRowCutDebugger (const char *modelName)
	Activate the row cut debugger. More...
virtual void	activateRowCutDebugger (const double *solution, bool enforceOptimality=true)
	Activate the row cut debugger using a full solution array. More...
const OsiRowCutDebugger *	getRowCutDebugger () const
	Get the row cut debugger provided the solution known to the debugger is within the feasible region held in the solver. More...
OsiRowCutDebugger *	getRowCutDebuggerAlways () const
	Get the row cut debugger object. More...
virtual int	canDoSimplexInterface () const
	Return the simplex implementation level. More...
virtual void	enableFactorization () const
	Prepare the solver for the use of tableau access methods. More...
virtual void	disableFactorization () const
	Undo the effects of enableFactorization. More...
virtual bool	basisIsAvailable () const
	Check if an optimal basis is available. More...
bool	optimalBasisIsAvailable () const
	Synonym for basisIsAvailable. More...
virtual void	getBasisStatus (int *cstat, int *rstat) const
	Retrieve status information for column and row variables. More...
virtual int	setBasisStatus (const int *cstat, const int *rstat)
	Set the status of column and row variables and update the basis factorization and solution. More...
virtual void	getReducedGradient (double *columnReducedCosts, double *duals, const double *c) const
	Calculate duals and reduced costs for the given objective coefficients. More...
virtual void	getBInvARow (int row, double *z, double *slack=NULL) const
	Get a row of the tableau. More...
virtual void	getBInvRow (int row, double *z) const
	Get a row of the basis inverse. More...
virtual void	getBInvACol (int col, double *vec) const
	Get a column of the tableau. More...
virtual void	getBInvCol (int col, double *vec) const
	Get a column of the basis inverse. More...
virtual void	getBasics (int *index) const
	Get indices of basic variables. More...
virtual void	enableSimplexInterface (bool doingPrimal)
	Enables normal operation of subsequent functions. More...
virtual void	disableSimplexInterface ()
	Undo whatever setting changes the above method had to make. More...
virtual int	pivot (int colIn, int colOut, int outStatus)
	Perform a pivot by substituting a colIn for colOut in the basis. More...
virtual int	primalPivotResult (int colIn, int sign, int &colOut, int &outStatus, double &t, CoinPackedVector *dx)
	Obtain a result of the primal pivot Outputs: colOut – leaving column, outStatus – its status, t – step size, and, if dx!=NULL, *dx – primal ray direction. More...
virtual int	dualPivotResult (int &colIn, int &sign, int colOut, int outStatus, double &t, CoinPackedVector *dx)
	Obtain a result of the dual pivot (similar to the previous method) Differences: entering variable and a sign of its change are now the outputs, the leaving variable and its statuts – the inputs If dx!=NULL, then *dx contains dual ray Return code: same. More...
	OsiSolverInterface ()
	Default Constructor. More...
	OsiSolverInterface (const OsiSolverInterface &)
	Copy constructor. More...
OsiSolverInterface &	operator= (const OsiSolverInterface &rhs)
	Assignment operator. More...
virtual	~OsiSolverInterface ()
	Destructor. More...
virtual void	reset ()
	Reset the solver interface. More...

Protected Member Functions
Protected methods
virtual void	applyRowCut (const OsiRowCut &rc)
	Apply a row cut (append to the constraint matrix). More...
virtual void	applyColCut (const OsiColCut &cc)
	Apply a column cut (adjust the bounds of one or more variables). More...
template<class T >
T	forceIntoRange (const T value, const T lower, const T upper) const
	A quick inlined function to force a value to be between a minimum and a maximum value. More...
virtual void	applyRowCut (const OsiRowCut &rc)
	Apply a row cut (append to the constraint matrix). More...
virtual void	applyColCut (const OsiColCut &cc)
	Apply a column cut (adjust the bounds of one or more variables). More...
template<class T >
T	forceIntoRange (const T value, const T lower, const T upper) const
	A quick inlined function to force a value to be between a minimum and a maximum value. More...
Protected Member Functions inherited from OsiSolverInterface
void	convertBoundToSense (const double lower, const double upper, char &sense, double &right, double &range) const
	A quick inlined function to convert from the lb/ub style of constraint definition to the sense/rhs/range style. More...
void	convertSenseToBound (const char sense, const double right, const double range, double &lower, double &upper) const
	A quick inlined function to convert from the sense/rhs/range style of constraint definition to the lb/ub style. More...
template<class T >
T	forceIntoRange (const T value, const T lower, const T upper) const
	A quick inlined function to force a value to be between a minimum and a maximum value. More...
void	setInitialData ()
	Set OsiSolverInterface object state for default constructor. More...

Protected Attributes
OsiData *	data_
Protected Attributes inherited from OsiSolverInterface
OsiRowCutDebugger *	rowCutDebugger_
	Pointer to row cut debugger object. More...
CoinMessageHandler *	handler_
	Message handler. More...
bool	defaultHandler_
	Flag to say if the currrent handler is the default handler. More...
CoinMessages	messages_
	Messages. More...
int	numberIntegers_
	Number of integers. More...
int	numberObjects_
	Total number of objects. More...
OsiObject **	object_
	Integer and ... information (integer info normally at beginning) More...
char *	columnType_
	Column type 0 - continuous 1 - binary (may get fixed later) 2 - general integer (may get fixed later) 3 - if supported - semi-continuous 4 - if supported - semi-continuous integer. More...

Additional Inherited Members
Public Types inherited from OsiSolverInterface
typedef std::vector< std::string >	OsiNameVec
	Data type for name vectors. More...

Detailed Description

Definition at line 38 of file OsiNullSolverInterface.hpp.

Constructor & Destructor Documentation

OsiNullSolverInterface::OsiNullSolverInterface ( )

inline

Default Constructor.

Definition at line 676 of file OsiNullSolverInterface.hpp.

OsiNullSolverInterface::OsiNullSolverInterface

(

const OsiNullSolverInterface &

)

Copy constructor (disabled)

virtual OsiNullSolverInterface::~OsiNullSolverInterface ( )

inlinevirtual

Destructor.

Definition at line 700 of file OsiNullSolverInterface.hpp.

References data_.

OsiNullSolverInterface::OsiNullSolverInterface ( )

inline

Default Constructor.

Definition at line 676 of file OsiNullSolverInterface2.hpp.

OsiNullSolverInterface::OsiNullSolverInterface

(

const OsiNullSolverInterface &

)

Copy constructor (disabled)

virtual OsiNullSolverInterface::~OsiNullSolverInterface ( )

inlinevirtual

Destructor.

Definition at line 700 of file OsiNullSolverInterface2.hpp.

References data_.

Member Function Documentation

virtual void OsiNullSolverInterface::initialSolve ( )

inlinevirtual

Solve initial LP relaxation.

Implements OsiSolverInterface.

Definition at line 44 of file OsiNullSolverInterface.hpp.

virtual void OsiNullSolverInterface::resolve ( )

inlinevirtual

Resolve an LP relaxation after problem modification.

Implements OsiSolverInterface.

Definition at line 49 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::branchAndBound ( )

inlinevirtual

Invoke solver's built-in enumeration algorithm.

Implements OsiSolverInterface.

Definition at line 54 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

void OsiNullSolverInterface::copyParameters

(

OsiNullSolverInterface &

rhs

)

Solve initial LP relaxation.

virtual bool OsiNullSolverInterface::isAbandoned ( ) const

inlinevirtual

Are there numerical difficulties?

Implements OsiSolverInterface.

Definition at line 67 of file OsiNullSolverInterface.hpp.

virtual bool OsiNullSolverInterface::isProvenOptimal ( ) const

inlinevirtual

Is optimality proven?

Implements OsiSolverInterface.

Definition at line 72 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isProvenPrimalInfeasible ( ) const

inlinevirtual

Is primal infeasiblity proven?

Implements OsiSolverInterface.

Definition at line 77 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isProvenDualInfeasible ( ) const

inlinevirtual

Is dual infeasiblity proven?

Implements OsiSolverInterface.

Definition at line 82 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isPrimalObjectiveLimitReached ( ) const

inlinevirtual

Is the given primal objective limit reached?

Reimplemented from OsiSolverInterface.

Definition at line 87 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isDualObjectiveLimitReached ( ) const

inlinevirtual

Is the given dual objective limit reached?

Reimplemented from OsiSolverInterface.

Definition at line 92 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isIterationLimitReached ( ) const

inlinevirtual

Iteration limit reached?

Implements OsiSolverInterface.

Definition at line 97 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual CoinWarmStart* OsiNullSolverInterface::getEmptyWarmStart ( ) const

inlinevirtual

Get an empty warm start object.

This routine returns an empty warm start object. Its purpose is to provide a way for a client to acquire a warm start object of the appropriate type for the solver, which can then be resized and modified as desired.

Implements OsiSolverInterface.

Definition at line 121 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual CoinWarmStart* OsiNullSolverInterface::getWarmStart ( ) const

inlinevirtual

Get warm start information.

Return warm start information for the current state of the solver interface. If there is no valid warm start information, an empty warm start object wil be returned.

Implements OsiSolverInterface.

Definition at line 132 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::setWarmStart ( const CoinWarmStart *  warmstart )

inlinevirtual

Set warm start information.

Return true or false depending on whether the warm start information was accepted or not. By definition, a call to setWarmStart with an empty warm start object should remove the warm start information held in the solver interface.

Implements OsiSolverInterface.

Definition at line 144 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual int OsiNullSolverInterface::getNumCols ( ) const

inlinevirtual

Get number of columns.

Implements OsiSolverInterface.

Definition at line 162 of file OsiNullSolverInterface.hpp.

Referenced by getNumIntegers().

virtual int OsiNullSolverInterface::getNumRows ( ) const

inlinevirtual

Get number of rows.

Implements OsiSolverInterface.

Definition at line 167 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getNrow().

virtual int OsiNullSolverInterface::getNumElements ( ) const

inlinevirtual

Get number of nonzero elements.

Implements OsiSolverInterface.

Definition at line 172 of file OsiNullSolverInterface.hpp.

References data_, OsiData::getMatrixByCol(), OsiData::getMatrixByRow(), and CoinPackedMatrix::getNumElements().

virtual int OsiNullSolverInterface::getNumIntegers ( ) const

inlinevirtual

Get number of integer variables.

Reimplemented from OsiSolverInterface.

Definition at line 184 of file OsiNullSolverInterface.hpp.

References data_, OsiData::getColType(), and getNumCols().

virtual const double* OsiNullSolverInterface::getColLower ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of column lower bounds.

Implements OsiSolverInterface.

Definition at line 195 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getColLower().

virtual const double* OsiNullSolverInterface::getColUpper ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of column upper bounds.

Implements OsiSolverInterface.

Definition at line 200 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getColUpper().

virtual const char* OsiNullSolverInterface::getRowSense ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row constraint senses.

• 'L': <= constraint
• 'E': = constraint
• 'G': >= constraint
• 'R': ranged constraint
• 'N': free constraint

Get pointer to array[getNumRows()] of row right-hand sides

• if getRowSense()[i] == 'L' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'G' then getRightHandSide()[i] == getRowLower()[i]
• if getRowSense()[i] == 'R' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'N' then getRightHandSide()[i] == 0.0

Implements OsiSolverInterface.

Definition at line 213 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getRowSense().

virtual const double* OsiNullSolverInterface::getRightHandSide ( ) const

inlinevirtual

Get a pointer to an array[getNumRows()] of row right-hand sides.

• if getRowSense()[i] == 'L' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'G' then getRightHandSide()[i] == getRowLower()[i]
• if getRowSense()[i] == 'R' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'N' then getRightHandSide()[i] == 0.0

Get pointer to array[getNumRows()] of row ranges.

• if getRowSense()[i] == 'R' then getRowRange()[i] == getRowUpper()[i] - getRowLower()[i]
• if getRowSense()[i] != 'R' then getRowRange()[i] is 0.0

Implements OsiSolverInterface.

Definition at line 230 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getRowRhs().

virtual const double* OsiNullSolverInterface::getRowRange ( ) const

inlinevirtual

Get number of columns.

Implements OsiSolverInterface.

Definition at line 243 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getRowRange().

virtual const double* OsiNullSolverInterface::getRowLower ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row lower bounds.

Implements OsiSolverInterface.

Definition at line 248 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getRowLower().

virtual const double* OsiNullSolverInterface::getRowUpper ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row upper bounds.

Implements OsiSolverInterface.

Definition at line 253 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getRowUpper().

virtual const double* OsiNullSolverInterface::getObjCoefficients ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of objective function coefficients.

Implements OsiSolverInterface.

Definition at line 258 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getObj().

virtual double OsiNullSolverInterface::getObjSense ( ) const

inlinevirtual

Get objective function sense (1 for min (default), -1 for max)

Implements OsiSolverInterface.

Definition at line 263 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isContinuous ( int  colIndex ) const

inlinevirtual

Return true if variable is continuous.

Implements OsiSolverInterface.

Definition at line 269 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getColType().

virtual bool OsiNullSolverInterface::isBinary ( int  colIndex ) const

inlinevirtual

Return true if variable is binary.

Reimplemented from OsiSolverInterface.

Definition at line 274 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getColType().

virtual bool OsiNullSolverInterface::isInteger ( int  colIndex ) const

inlinevirtual

Return true if column is integer.

Note: This function returns true if the the column is binary or a general integer.

Reimplemented from OsiSolverInterface.

Definition at line 282 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getColType().

virtual const CoinPackedMatrix* OsiNullSolverInterface::getMatrixByRow ( ) const

inlinevirtual

Get pointer to row-wise copy of matrix.

Implements OsiSolverInterface.

Definition at line 288 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getMatrixByRow().

virtual const CoinPackedMatrix* OsiNullSolverInterface::getMatrixByCol ( ) const

inlinevirtual

Get pointer to column-wise copy of matrix.

Implements OsiSolverInterface.

Definition at line 293 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getMatrixByCol().

virtual double OsiNullSolverInterface::getInfinity ( ) const

inlinevirtual

Get solver's value for infinity.

Implements OsiSolverInterface.

Definition at line 297 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getInfinity().

virtual const double* OsiNullSolverInterface::getColSolution ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of primal variable values.

Implements OsiSolverInterface.

Definition at line 305 of file OsiNullSolverInterface.hpp.

virtual const double* OsiNullSolverInterface::getRowPrice ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of dual variable values.

Implements OsiSolverInterface.

Definition at line 311 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual const double* OsiNullSolverInterface::getReducedCost ( ) const

inlinevirtual

Get a pointer to array[getNumCols()] of reduced costs.

Implements OsiSolverInterface.

Definition at line 317 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual const double* OsiNullSolverInterface::getRowActivity ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector).

Implements OsiSolverInterface.

Definition at line 324 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::getRowActivity().

virtual double OsiNullSolverInterface::getObjValue ( ) const

inlinevirtual

Get objective function value.

Implements OsiSolverInterface.

Definition at line 329 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual int OsiNullSolverInterface::getIterationCount ( ) const

inlinevirtual

Get the number of iterations it took to solve the problem (whatever ``iteration'' means to the solver).

Implements OsiSolverInterface.

Definition at line 336 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual std::vector<double*> OsiNullSolverInterface::getDualRays ( int  maxNumRays ) const

inlinevirtual

Get as many dual rays as the solver can provide.

In case of proven primal infeasibility there should be at least one.

Note

Implementors of solver interfaces note that the double pointers in the vector should point to arrays of length getNumRows() and they should be allocated via new[].

Clients of solver interfaces note that it is the client's responsibility to free the double pointers in the vector using delete[].

Get as many primal rays as the solver can provide. (In case of proven dual infeasibility there should be at least one.)

NOTE for implementers of solver interfaces:
The double pointers in the vector should point to arrays of length getNumCols() and they should be allocated via new[].

NOTE for users of solver interfaces:
It is the user's responsibility to free the double pointers in the vector using delete[].

Definition at line 353 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual std::vector<double*> OsiNullSolverInterface::getPrimalRays ( int  maxNumRays ) const

inlinevirtual

Get pointer to array[getNumCols()] of primal variable values.

Implements OsiSolverInterface.

Definition at line 368 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setObjCoeff ( int  elementIndex, double  elementValue  )

inlinevirtual

Set an objective function coefficient.

Implements OsiSolverInterface.

Definition at line 385 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setColLower ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single column lower bound.

Use -getInfinity() for -infinity.

Implements OsiSolverInterface.

Definition at line 391 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setColUpper ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single column upper bound.

Use getInfinity() for infinity.

Implements OsiSolverInterface.

Definition at line 397 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setRowLower ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single row lower bound.

Use -getInfinity() for -infinity.

Implements OsiSolverInterface.

Definition at line 403 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setRowUpper ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single row upper bound.

Use getInfinity() for infinity.

Implements OsiSolverInterface.

Definition at line 409 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setRowType ( int  index, char  sense, double  rightHandSide, double  range  )

inlinevirtual

Set the type of a single row.

Implements OsiSolverInterface.

Definition at line 414 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setObjSense ( double  s )

inlinevirtual

Set the objective function sense.

(1 for min (default), -1 for max)

Implements OsiSolverInterface.

Definition at line 421 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setColType ( const char *  colType )

inlinevirtual

Set characters for columns types.

colType[i] can have values

• 'C' : continuous
• 'B' : binary
• 'I' : integer

Definition at line 433 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::setColType().

virtual void OsiNullSolverInterface::setColSolution ( const double *  colsol )

inlinevirtual

Set an objective function coefficient.

Implements OsiSolverInterface.

Definition at line 447 of file OsiNullSolverInterface.hpp.

References data_, and OsiData::setPrimalSol().

virtual void OsiNullSolverInterface::setRowPrice ( const double *  rowprice )

inlinevirtual

Set dual solution variable values.

rowprice[getNumRows()] is an array of values for the dual variables. These values are copied to memory owned by the solver interface object or the solver. They will be returned as the result of getRowPrice() 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.

Implements OsiSolverInterface.

Definition at line 462 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setContinuous ( int  index )

inlinevirtual

Set the index-th variable to be a continuous variable.

Implements OsiSolverInterface.

Definition at line 470 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setInteger ( int  index )

inlinevirtual

Set the index-th variable to be an integer variable.

Implements OsiSolverInterface.

Definition at line 475 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::addCol ( const CoinPackedVectorBase &  vec, const double  collb, const double  colub, const double  obj  )

inlinevirtual

Add a column (primal variable) to the problem.

Implements OsiSolverInterface.

Definition at line 492 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::deleteCols ( const int  num, const int *  colIndices  )

inlinevirtual

Remove a set of columns (primal variables) from the problem.

The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted variables are nonbasic.

Implements OsiSolverInterface.

Definition at line 504 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::addRow ( const CoinPackedVectorBase &  vec, const double  rowlb, const double  rowub  )

inlinevirtual

Add a row (constraint) to the problem.

Implements OsiSolverInterface.

Definition at line 509 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::addRow ( const CoinPackedVectorBase &  vec, const char  rowsen, const double  rowrhs, const double  rowrng  )

inlinevirtual

Add a column (primal variable) to the problem.

Implements OsiSolverInterface.

Definition at line 515 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::deleteRows ( const int  num, const int *  rowIndices  )

inlinevirtual

Delete a set of rows (constraints) from the problem.

The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted rows are loose.

Implements OsiSolverInterface.

Definition at line 526 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

void OsiNullSolverInterface::loadDataAndSolution ( const CoinPackedMatrix &  rowMatrix, const CoinPackedMatrix &  colMatrix, const double *  collb, const double *  colub, const double *  obj, const double *  rowlb, const double *  rowub, const char *  colType, const double *  primalSol, const double  infinity  )

inline

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:

• colub: all columns have upper bound infinity
• collb: all columns have lower bound 0
• rowub: all rows have upper bound infinity
• rowlb: all rows have lower bound -infinity
• obj: all variables have 0 objective coefficient

Definition at line 535 of file OsiNullSolverInterface.hpp.

References data_, CoinPackedMatrix::getNumCols(), CoinPackedMatrix::getNumRows(), OsiData::initializeOtherData(), OsiData::setColLower(), OsiData::setColType(), OsiData::setColUpper(), OsiData::setInfinity(), OsiData::setMatrixByCol(), OsiData::setMatrixByRow(), OsiData::setNcol(), OsiData::setNrow(), OsiData::setObj(), OsiData::setPrimalSol(), OsiData::setRowLower(), and OsiData::setRowUpper().

virtual void OsiNullSolverInterface::loadProblem ( const CoinPackedMatrix &  matrix, const double *  collb, const double *  colub, const double *  obj, const double *  rowlb, const double *  rowub  )

inlinevirtual

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:

• colub: all columns have upper bound infinity
• collb: all columns have lower bound 0
• rowub: all rows have upper bound infinity
• rowlb: all rows have lower bound -infinity
• obj: all variables have 0 objective coefficient

Implements OsiSolverInterface.

Definition at line 574 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::assignProblem ( CoinPackedMatrix *&  matrix, double *&  collb, double *&  colub, double *&  obj, double *&  rowlb, double *&  rowub  )

inlinevirtual

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.

Warning

The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

Definition at line 594 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::loadProblem ( const CoinPackedMatrix &  matrix, const double *  collb, const double *  colub, const double *  obj, const char *  rowsen, const double *  rowrhs, const double *  rowrng  )

inlinevirtual

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:

• colub: all columns have upper bound infinity
• collb: all columns have lower bound 0
• obj: all variables have 0 objective coefficient
• rowsen: all rows are >=
• rowrhs: all right hand sides are 0
• rowrng: 0 for the ranged rows

Implements OsiSolverInterface.

Definition at line 612 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::assignProblem ( CoinPackedMatrix *&  matrix, double *&  collb, double *&  colub, double *&  obj, char *&  rowsen, double *&  rowrhs, double *&  rowrng  )

inlinevirtual

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.

Warning

The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

Definition at line 629 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::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  )

inlinevirtual

Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).

Implements OsiSolverInterface.

Definition at line 638 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::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  )

inlinevirtual

Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).

Implements OsiSolverInterface.

Definition at line 649 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::writeMps ( const char *  filename, const char *  extension = "mps", double  objSense = 0.0  ) const

inlinevirtual

Write the problem in MPS format to the specified file.

If objSense is non-zero, a value of -1.0 causes the problem to be written with a maximization objective; +1.0 forces a minimization objective. If objSense is zero, the choice is left to implementation.

Implements OsiSolverInterface.

Definition at line 665 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual OsiNullSolverInterface* OsiNullSolverInterface::clone ( bool  copyData = true ) const

inlinevirtual

Clone.

The result of calling clone(false) is defined to be equivalent to calling the default constructor OsiNullSolverInterface().

Implements OsiSolverInterface.

Definition at line 688 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

OsiNullSolverInterface& OsiNullSolverInterface::operator=

(

const OsiNullSolverInterface &

rhs

)

Assignment operator (disabled)

virtual void OsiNullSolverInterface::applyRowCut ( const OsiRowCut &  rc )

inlineprotectedvirtual

Apply a row cut (append to the constraint matrix).

Implements OsiSolverInterface.

Definition at line 712 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::applyColCut ( const OsiColCut &  cc )

inlineprotectedvirtual

Apply a column cut (adjust the bounds of one or more variables).

Implements OsiSolverInterface.

Definition at line 717 of file OsiNullSolverInterface.hpp.

References CoinAssertHint.

template<class T >

T OsiNullSolverInterface::forceIntoRange ( const T  value, const T  lower, const T  upper  ) const

inlineprotected

A quick inlined function to force a value to be between a minimum and a maximum value.

Definition at line 723 of file OsiNullSolverInterface.hpp.

virtual void OsiNullSolverInterface::initialSolve ( )

inlinevirtual

Solve initial LP relaxation.

Implements OsiSolverInterface.

Definition at line 44 of file OsiNullSolverInterface2.hpp.

virtual void OsiNullSolverInterface::resolve ( )

inlinevirtual

Resolve an LP relaxation after problem modification.

Implements OsiSolverInterface.

Definition at line 49 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::branchAndBound ( )

inlinevirtual

Invoke solver's built-in enumeration algorithm.

Implements OsiSolverInterface.

Definition at line 54 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

void OsiNullSolverInterface::copyParameters

(

OsiNullSolverInterface &

rhs

)

Solve initial LP relaxation.

virtual bool OsiNullSolverInterface::isAbandoned ( ) const

inlinevirtual

Are there numerical difficulties?

Implements OsiSolverInterface.

Definition at line 67 of file OsiNullSolverInterface2.hpp.

virtual bool OsiNullSolverInterface::isProvenOptimal ( ) const

inlinevirtual

Is optimality proven?

Implements OsiSolverInterface.

Definition at line 72 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isProvenPrimalInfeasible ( ) const

inlinevirtual

Is primal infeasiblity proven?

Implements OsiSolverInterface.

Definition at line 77 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isProvenDualInfeasible ( ) const

inlinevirtual

Is dual infeasiblity proven?

Implements OsiSolverInterface.

Definition at line 82 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isPrimalObjectiveLimitReached ( ) const

inlinevirtual

Is the given primal objective limit reached?

Reimplemented from OsiSolverInterface.

Definition at line 87 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isDualObjectiveLimitReached ( ) const

inlinevirtual

Is the given dual objective limit reached?

Reimplemented from OsiSolverInterface.

Definition at line 92 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isIterationLimitReached ( ) const

inlinevirtual

Iteration limit reached?

Implements OsiSolverInterface.

Definition at line 97 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual CoinWarmStart* OsiNullSolverInterface::getEmptyWarmStart ( ) const

inlinevirtual

Get an empty warm start object.

This routine returns an empty warm start object. Its purpose is to provide a way for a client to acquire a warm start object of the appropriate type for the solver, which can then be resized and modified as desired.

Implements OsiSolverInterface.

Definition at line 121 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual CoinWarmStart* OsiNullSolverInterface::getWarmStart ( ) const

inlinevirtual

Get warm start information.

Return warm start information for the current state of the solver interface. If there is no valid warm start information, an empty warm start object wil be returned.

Implements OsiSolverInterface.

Definition at line 132 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::setWarmStart ( const CoinWarmStart *  warmstart )

inlinevirtual

Set warm start information.

Return true or false depending on whether the warm start information was accepted or not. By definition, a call to setWarmStart with an empty warm start object should remove the warm start information held in the solver interface.

Implements OsiSolverInterface.

Definition at line 144 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual int OsiNullSolverInterface::getNumCols ( ) const

inlinevirtual

Get number of columns.

Implements OsiSolverInterface.

Definition at line 162 of file OsiNullSolverInterface2.hpp.

virtual int OsiNullSolverInterface::getNumRows ( ) const

inlinevirtual

Get number of rows.

Implements OsiSolverInterface.

Definition at line 167 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getNrow().

virtual int OsiNullSolverInterface::getNumElements ( ) const

inlinevirtual

Get number of nonzero elements.

Implements OsiSolverInterface.

Definition at line 172 of file OsiNullSolverInterface2.hpp.

References data_, OsiData::getMatrixByCol(), OsiData::getMatrixByRow(), and CoinPackedMatrix::getNumElements().

virtual int OsiNullSolverInterface::getNumIntegers ( ) const

inlinevirtual

Get number of integer variables.

Reimplemented from OsiSolverInterface.

Definition at line 184 of file OsiNullSolverInterface2.hpp.

References data_, OsiData::getColType(), and getNumCols().

virtual const double* OsiNullSolverInterface::getColLower ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of column lower bounds.

Implements OsiSolverInterface.

Definition at line 195 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getColLower().

virtual const double* OsiNullSolverInterface::getColUpper ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of column upper bounds.

Implements OsiSolverInterface.

Definition at line 200 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getColUpper().

virtual const char* OsiNullSolverInterface::getRowSense ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row constraint senses.

• 'L': <= constraint
• 'E': = constraint
• 'G': >= constraint
• 'R': ranged constraint
• 'N': free constraint

Get pointer to array[getNumRows()] of row right-hand sides

• if getRowSense()[i] == 'L' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'G' then getRightHandSide()[i] == getRowLower()[i]
• if getRowSense()[i] == 'R' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'N' then getRightHandSide()[i] == 0.0

Implements OsiSolverInterface.

Definition at line 213 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getRowSense().

virtual const double* OsiNullSolverInterface::getRightHandSide ( ) const

inlinevirtual

Get a pointer to an array[getNumRows()] of row right-hand sides.

• if getRowSense()[i] == 'L' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'G' then getRightHandSide()[i] == getRowLower()[i]
• if getRowSense()[i] == 'R' then getRightHandSide()[i] == getRowUpper()[i]
• if getRowSense()[i] == 'N' then getRightHandSide()[i] == 0.0

Get pointer to array[getNumRows()] of row ranges.

• if getRowSense()[i] == 'R' then getRowRange()[i] == getRowUpper()[i] - getRowLower()[i]
• if getRowSense()[i] != 'R' then getRowRange()[i] is 0.0

Implements OsiSolverInterface.

Definition at line 230 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getRowRhs().

virtual const double* OsiNullSolverInterface::getRowRange ( ) const

inlinevirtual

Get number of columns.

Implements OsiSolverInterface.

Definition at line 243 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getRowRange().

virtual const double* OsiNullSolverInterface::getRowLower ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row lower bounds.

Implements OsiSolverInterface.

Definition at line 248 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getRowLower().

virtual const double* OsiNullSolverInterface::getRowUpper ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row upper bounds.

Implements OsiSolverInterface.

Definition at line 253 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getRowUpper().

virtual const double* OsiNullSolverInterface::getObjCoefficients ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of objective function coefficients.

Implements OsiSolverInterface.

Definition at line 258 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getObj().

virtual double OsiNullSolverInterface::getObjSense ( ) const

inlinevirtual

Get objective function sense (1 for min (default), -1 for max)

Implements OsiSolverInterface.

Definition at line 263 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual bool OsiNullSolverInterface::isContinuous ( int  colIndex ) const

inlinevirtual

Return true if variable is continuous.

Implements OsiSolverInterface.

Definition at line 269 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getColType().

virtual bool OsiNullSolverInterface::isBinary ( int  colIndex ) const

inlinevirtual

Return true if variable is binary.

Reimplemented from OsiSolverInterface.

Definition at line 274 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getColType().

virtual bool OsiNullSolverInterface::isInteger ( int  colIndex ) const

inlinevirtual

Return true if column is integer.

Note: This function returns true if the the column is binary or a general integer.

Reimplemented from OsiSolverInterface.

Definition at line 282 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getColType().

virtual const CoinPackedMatrix* OsiNullSolverInterface::getMatrixByRow ( ) const

inlinevirtual

Get pointer to row-wise copy of matrix.

Implements OsiSolverInterface.

Definition at line 288 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getMatrixByRow().

virtual const CoinPackedMatrix* OsiNullSolverInterface::getMatrixByCol ( ) const

inlinevirtual

Get pointer to column-wise copy of matrix.

Implements OsiSolverInterface.

Definition at line 293 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getMatrixByCol().

virtual double OsiNullSolverInterface::getInfinity ( ) const

inlinevirtual

Get solver's value for infinity.

Implements OsiSolverInterface.

Definition at line 297 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getInfinity().

virtual const double* OsiNullSolverInterface::getColSolution ( ) const

inlinevirtual

Get pointer to array[getNumCols()] of primal variable values.

Implements OsiSolverInterface.

Definition at line 305 of file OsiNullSolverInterface2.hpp.

virtual const double* OsiNullSolverInterface::getRowPrice ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of dual variable values.

Implements OsiSolverInterface.

Definition at line 311 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual const double* OsiNullSolverInterface::getReducedCost ( ) const

inlinevirtual

Get a pointer to array[getNumCols()] of reduced costs.

Implements OsiSolverInterface.

Definition at line 317 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual const double* OsiNullSolverInterface::getRowActivity ( ) const

inlinevirtual

Get pointer to array[getNumRows()] of row activity levels (constraint matrix times the solution vector).

Implements OsiSolverInterface.

Definition at line 324 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::getRowActivity().

virtual double OsiNullSolverInterface::getObjValue ( ) const

inlinevirtual

Get objective function value.

Implements OsiSolverInterface.

Definition at line 329 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual int OsiNullSolverInterface::getIterationCount ( ) const

inlinevirtual

Get the number of iterations it took to solve the problem (whatever ``iteration'' means to the solver).

Implements OsiSolverInterface.

Definition at line 336 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual std::vector<double*> OsiNullSolverInterface::getDualRays ( int  maxNumRays ) const

inlinevirtual

Get as many dual rays as the solver can provide.

In case of proven primal infeasibility there should be at least one.

Note

Implementors of solver interfaces note that the double pointers in the vector should point to arrays of length getNumRows() and they should be allocated via new[].

Clients of solver interfaces note that it is the client's responsibility to free the double pointers in the vector using delete[].

Get as many primal rays as the solver can provide. (In case of proven dual infeasibility there should be at least one.)

NOTE for implementers of solver interfaces:
The double pointers in the vector should point to arrays of length getNumCols() and they should be allocated via new[].

NOTE for users of solver interfaces:
It is the user's responsibility to free the double pointers in the vector using delete[].

Definition at line 353 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual std::vector<double*> OsiNullSolverInterface::getPrimalRays ( int  maxNumRays ) const

inlinevirtual

Get pointer to array[getNumCols()] of primal variable values.

Implements OsiSolverInterface.

Definition at line 368 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setObjCoeff ( int  elementIndex, double  elementValue  )

inlinevirtual

Set an objective function coefficient.

Implements OsiSolverInterface.

Definition at line 385 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setColLower ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single column lower bound.

Use -getInfinity() for -infinity.

Implements OsiSolverInterface.

Definition at line 391 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setColUpper ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single column upper bound.

Use getInfinity() for infinity.

Implements OsiSolverInterface.

Definition at line 397 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setRowLower ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single row lower bound.

Use -getInfinity() for -infinity.

Implements OsiSolverInterface.

Definition at line 403 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setRowUpper ( int  elementIndex, double  elementValue  )

inlinevirtual

Set a single row upper bound.

Use getInfinity() for infinity.

Implements OsiSolverInterface.

Definition at line 409 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setRowType ( int  index, char  sense, double  rightHandSide, double  range  )

inlinevirtual

Set the type of a single row.

Implements OsiSolverInterface.

Definition at line 414 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setObjSense ( double  s )

inlinevirtual

Set the objective function sense.

(1 for min (default), -1 for max)

Implements OsiSolverInterface.

Definition at line 421 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setColType ( const char *  colType )

inlinevirtual

Set characters for columns types.

colType[i] can have values

• 'C' : continuous
• 'B' : binary
• 'I' : integer

Definition at line 433 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::setColType().

virtual void OsiNullSolverInterface::setColSolution ( const double *  colsol )

inlinevirtual

Set an objective function coefficient.

Implements OsiSolverInterface.

Definition at line 447 of file OsiNullSolverInterface2.hpp.

References data_, and OsiData::setPrimalSol().

virtual void OsiNullSolverInterface::setRowPrice ( const double *  rowprice )

inlinevirtual

Set dual solution variable values.

rowprice[getNumRows()] is an array of values for the dual variables. These values are copied to memory owned by the solver interface object or the solver. They will be returned as the result of getRowPrice() 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.

Implements OsiSolverInterface.

Definition at line 462 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setContinuous ( int  index )

inlinevirtual

Set the index-th variable to be a continuous variable.

Implements OsiSolverInterface.

Definition at line 470 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::setInteger ( int  index )

inlinevirtual

Set the index-th variable to be an integer variable.

Implements OsiSolverInterface.

Definition at line 475 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::addCol ( const CoinPackedVectorBase &  vec, const double  collb, const double  colub, const double  obj  )

inlinevirtual

Add a column (primal variable) to the problem.

Implements OsiSolverInterface.

Definition at line 492 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::deleteCols ( const int  num, const int *  colIndices  )

inlinevirtual

Remove a set of columns (primal variables) from the problem.

The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted variables are nonbasic.

Implements OsiSolverInterface.

Definition at line 504 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::addRow ( const CoinPackedVectorBase &  vec, const double  rowlb, const double  rowub  )

inlinevirtual

Add a row (constraint) to the problem.

Implements OsiSolverInterface.

Definition at line 509 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::addRow ( const CoinPackedVectorBase &  vec, const char  rowsen, const double  rowrhs, const double  rowrng  )

inlinevirtual

Add a column (primal variable) to the problem.

Implements OsiSolverInterface.

Definition at line 515 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::deleteRows ( const int  num, const int *  rowIndices  )

inlinevirtual

Delete a set of rows (constraints) from the problem.

The solver interface for a basis-oriented solver will maintain valid warm start information if all deleted rows are loose.

Implements OsiSolverInterface.

Definition at line 526 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

void OsiNullSolverInterface::loadDataAndSolution ( const CoinPackedMatrix &  rowMatrix, const CoinPackedMatrix &  colMatrix, const double *  collb, const double *  colub, const double *  obj, const double *  rowlb, const double *  rowub, const char *  colType, const double *  primalSol, const double  infinity  )

inline

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:

• colub: all columns have upper bound infinity
• collb: all columns have lower bound 0
• rowub: all rows have upper bound infinity
• rowlb: all rows have lower bound -infinity
• obj: all variables have 0 objective coefficient

Definition at line 535 of file OsiNullSolverInterface2.hpp.

References data_, CoinPackedMatrix::getNumCols(), CoinPackedMatrix::getNumRows(), OsiData::initializeOtherData(), OsiData::setColLower(), OsiData::setColType(), OsiData::setColUpper(), OsiData::setInfinity(), OsiData::setMatrixByCol(), OsiData::setMatrixByRow(), OsiData::setNcol(), OsiData::setNrow(), OsiData::setObj(), OsiData::setPrimalSol(), OsiData::setRowLower(), and OsiData::setRowUpper().

virtual void OsiNullSolverInterface::loadProblem ( const CoinPackedMatrix &  matrix, const double *  collb, const double *  colub, const double *  obj, const double *  rowlb, const double *  rowub  )

inlinevirtual

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:

• colub: all columns have upper bound infinity
• collb: all columns have lower bound 0
• rowub: all rows have upper bound infinity
• rowlb: all rows have lower bound -infinity
• obj: all variables have 0 objective coefficient

Implements OsiSolverInterface.

Definition at line 574 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::assignProblem ( CoinPackedMatrix *&  matrix, double *&  collb, double *&  colub, double *&  obj, double *&  rowlb, double *&  rowub  )

inlinevirtual

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.

Warning

The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

Definition at line 594 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::loadProblem ( const CoinPackedMatrix &  matrix, const double *  collb, const double *  colub, const double *  obj, const char *  rowsen, const double *  rowrhs, const double *  rowrng  )

inlinevirtual

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:

• colub: all columns have upper bound infinity
• collb: all columns have lower bound 0
• obj: all variables have 0 objective coefficient
• rowsen: all rows are >=
• rowrhs: all right hand sides are 0
• rowrng: 0 for the ranged rows

Implements OsiSolverInterface.

Definition at line 612 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::assignProblem ( CoinPackedMatrix *&  matrix, double *&  collb, double *&  colub, double *&  obj, char *&  rowsen, double *&  rowrhs, double *&  rowrng  )

inlinevirtual

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.

Warning

The arguments passed to this method will be freed using the C++ delete and delete[] functions.

Implements OsiSolverInterface.

Definition at line 629 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::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  )

inlinevirtual

Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).

Implements OsiSolverInterface.

Definition at line 638 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::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  )

inlinevirtual

Just like the other loadProblem() methods except that the matrix is given in a standard column major ordered format (without gaps).

Implements OsiSolverInterface.

Definition at line 649 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::writeMps ( const char *  filename, const char *  extension = "mps", double  objSense = 0.0  ) const

inlinevirtual

Write the problem in MPS format to the specified file.

If objSense is non-zero, a value of -1.0 causes the problem to be written with a maximization objective; +1.0 forces a minimization objective. If objSense is zero, the choice is left to implementation.

Implements OsiSolverInterface.

Definition at line 665 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual OsiNullSolverInterface* OsiNullSolverInterface::clone ( bool  copyData = true ) const

inlinevirtual

Clone.

The result of calling clone(false) is defined to be equivalent to calling the default constructor OsiNullSolverInterface().

Implements OsiSolverInterface.

Definition at line 688 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

OsiNullSolverInterface& OsiNullSolverInterface::operator=

(

const OsiNullSolverInterface &

rhs

)

Assignment operator (disabled)

virtual void OsiNullSolverInterface::applyRowCut ( const OsiRowCut &  rc )

inlineprotectedvirtual

Apply a row cut (append to the constraint matrix).

Implements OsiSolverInterface.

Definition at line 712 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

virtual void OsiNullSolverInterface::applyColCut ( const OsiColCut &  cc )

inlineprotectedvirtual

Apply a column cut (adjust the bounds of one or more variables).

Implements OsiSolverInterface.

Definition at line 717 of file OsiNullSolverInterface2.hpp.

References CoinAssertHint.

template<class T >

T OsiNullSolverInterface::forceIntoRange ( const T  value, const T  lower, const T  upper  ) const

inlineprotected

A quick inlined function to force a value to be between a minimum and a maximum value.

Definition at line 723 of file OsiNullSolverInterface2.hpp.

Member Data Documentation

OsiData * OsiNullSolverInterface::data_

protected

Definition at line 730 of file OsiNullSolverInterface.hpp.

Referenced by getColLower(), getColUpper(), getInfinity(), getMatrixByCol(), getMatrixByRow(), getNumElements(), getNumIntegers(), getNumRows(), getObjCoefficients(), getRightHandSide(), getRowActivity(), getRowLower(), getRowRange(), getRowSense(), getRowUpper(), isBinary(), isContinuous(), isInteger(), loadDataAndSolution(), setColSolution(), setColType(), and ~OsiNullSolverInterface().

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The documentation for this class was generated from the following files:

• /tmp/Dip-0.92.4/Dip/src/old/OsiNullSolverInterface.hpp
• /tmp/Dip-0.92.4/Dip/src/old/OsiNullSolverInterface2.hpp