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# /home/coin/SVN-release/Osi-0.98.1/Clp/src/Clp_C_Interface.h File Reference

`#include "Coin_C_defines.h"`

Include dependency graph for Clp_C_Interface.h:

Go to the source code of this file.

## Constructors and destructor
These do not have an exact analogue in C++. The user does not need to know structure of Clp_Simplex. For all functions outside this group there is an exact C++ analogue created by taking the first parameter out, removing the Clp_ from name and applying the method to an object of type ClpSimplex.
COINLIBAPI Clp_Simplex *COINLINKAGE | Clp_newModel (void)
| Default constructor.
COINLIBAPI void COINLINKAGE | Clp_deleteModel (Clp_Simplex *model)
| Destructor.
## Load model - loads some stuff and initializes others
COINLIBAPI void COINLINKAGE | Clp_loadProblem (Clp_Simplex *model, 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() method except that the matrix is given in a standard column major ordered format (without gaps).
COINLIBAPI void COINLINKAGE | Clp_loadQuadraticObjective (Clp_Simplex *model, const int numberColumns, const CoinBigIndex *start, const int *column, const double *element)
| Just like the other loadProblem() method except that the matrix is given in a standard column major ordered format (without gaps).
COINLIBAPI int COINLINKAGE | Clp_readMps (Clp_Simplex *model, const char *filename, int keepNames, int ignoreErrors)
| Read an mps file from the given filename.
COINLIBAPI void COINLINKAGE | Clp_copyInIntegerInformation (Clp_Simplex *model, const char *information)
| Copy in integer informations.
COINLIBAPI void COINLINKAGE | Clp_deleteIntegerInformation (Clp_Simplex *model)
| Drop integer informations.
COINLIBAPI void COINLINKAGE | Clp_resize (Clp_Simplex *model, int newNumberRows, int newNumberColumns)
| Resizes rim part of model.
COINLIBAPI void COINLINKAGE | Clp_deleteRows (Clp_Simplex *model, int number, const int *which)
| Deletes rows.
COINLIBAPI void COINLINKAGE | Clp_addRows (Clp_Simplex *model, int number, const double *rowLower, const double *rowUpper, const int *rowStarts, const int *columns, const double *elements)
| Add rows.
COINLIBAPI void COINLINKAGE | Clp_deleteColumns (Clp_Simplex *model, int number, const int *which)
| Deletes columns.
COINLIBAPI void COINLINKAGE | Clp_addColumns (Clp_Simplex *model, int number, const double *columnLower, const double *columnUpper, const double *objective, const int *columnStarts, const int *rows, const double *elements)
| Add columns.
COINLIBAPI void COINLINKAGE | Clp_chgRowLower (Clp_Simplex *model, const double *rowLower)
| Change row lower bounds.
COINLIBAPI void COINLINKAGE | Clp_chgRowUpper (Clp_Simplex *model, const double *rowUpper)
| Change row upper bounds.
COINLIBAPI void COINLINKAGE | Clp_chgColumnLower (Clp_Simplex *model, const double *columnLower)
| Change column lower bounds.
COINLIBAPI void COINLINKAGE | Clp_chgColumnUpper (Clp_Simplex *model, const double *columnUpper)
| Change column upper bounds.
COINLIBAPI void COINLINKAGE | Clp_chgObjCoefficients (Clp_Simplex *model, const double *objIn)
| Change objective coefficients.
COINLIBAPI void COINLINKAGE | Clp_dropNames (Clp_Simplex *model)
| Drops names - makes lengthnames 0 and names empty.
COINLIBAPI void COINLINKAGE | Clp_copyNames (Clp_Simplex *model, const char *const *rowNames, const char *const *columnNames)
| Copies in names.
## gets and sets - you will find some synonyms at the end of this file
COINLIBAPI int COINLINKAGE | Clp_numberRows (Clp_Simplex *model)
| Number of rows.
COINLIBAPI int COINLINKAGE | Clp_numberColumns (Clp_Simplex *model)
| Number of columns.
COINLIBAPI double COINLINKAGE | Clp_primalTolerance (Clp_Simplex *model)
| Primal tolerance to use.
COINLIBAPI void COINLINKAGE | Clp_setPrimalTolerance (Clp_Simplex *model, double value)
| Number of rows.
COINLIBAPI double COINLINKAGE | Clp_dualTolerance (Clp_Simplex *model)
| Dual tolerance to use.
COINLIBAPI void COINLINKAGE | Clp_setDualTolerance (Clp_Simplex *model, double value)
| Number of rows.
COINLIBAPI double COINLINKAGE | Clp_dualObjectiveLimit (Clp_Simplex *model)
| Dual objective limit.
COINLIBAPI void COINLINKAGE | Clp_setDualObjectiveLimit (Clp_Simplex *model, double value)
| Number of rows.
COINLIBAPI double COINLINKAGE | Clp_objectiveOffset (Clp_Simplex *model)
| Objective offset.
COINLIBAPI void COINLINKAGE | Clp_setObjectiveOffset (Clp_Simplex *model, double value)
| Number of rows.
COINLIBAPI void COINLINKAGE | Clp_problemName (Clp_Simplex *model, int maxNumberCharacters, char *array)
| Fills in array with problem name.
COINLIBAPI int COINLINKAGE | Clp_setProblemName (Clp_Simplex *model, int maxNumberCharacters, char *array)
| Number of rows.
COINLIBAPI int COINLINKAGE | Clp_numberIterations (Clp_Simplex *model)
| Number of iterations.
COINLIBAPI void COINLINKAGE | Clp_setNumberIterations (Clp_Simplex *model, int numberIterations)
| Number of rows.
COINLIBAPI int | maximumIterations (Clp_Simplex *model)
| Maximum number of iterations.
COINLIBAPI void COINLINKAGE | Clp_setMaximumIterations (Clp_Simplex *model, int value)
| Number of rows.
COINLIBAPI double COINLINKAGE | Clp_maximumSeconds (Clp_Simplex *model)
| Maximum time in seconds (from when set called).
COINLIBAPI void COINLINKAGE | Clp_setMaximumSeconds (Clp_Simplex *model, double value)
| Number of rows.
COINLIBAPI int COINLINKAGE | Clp_hitMaximumIterations (Clp_Simplex *model)
| Returns true if hit maximum iterations (or time).
COINLIBAPI int COINLINKAGE | Clp_status (Clp_Simplex *model)
| Status of problem: 0 - optimal 1 - primal infeasible 2 - dual infeasible 3 - stopped on iterations etc 4 - stopped due to errors.
COINLIBAPI void COINLINKAGE | Clp_setProblemStatus (Clp_Simplex *model, int problemStatus)
| Set problem status.
COINLIBAPI int COINLINKAGE | Clp_secondaryStatus (Clp_Simplex *model)
| Secondary status of problem - may get extended 0 - none 1 - primal infeasible because dual limit reached 2 - scaled problem optimal - unscaled has primal infeasibilities 3 - scaled problem optimal - unscaled has dual infeasibilities 4 - scaled problem optimal - unscaled has both dual and primal infeasibilities.
COINLIBAPI void COINLINKAGE | Clp_setSecondaryStatus (Clp_Simplex *model, int status)
| Number of rows.
COINLIBAPI double COINLINKAGE | Clp_optimizationDirection (Clp_Simplex *model)
| Direction of optimization (1 - minimize, -1 - maximize, 0 - ignore.
COINLIBAPI void COINLINKAGE | Clp_setOptimizationDirection (Clp_Simplex *model, double value)
| Number of rows.
COINLIBAPI double *COINLINKAGE | Clp_primalRowSolution (Clp_Simplex *model)
| Primal row solution.
COINLIBAPI double *COINLINKAGE | Clp_primalColumnSolution (Clp_Simplex *model)
| Primal column solution.
COINLIBAPI double *COINLINKAGE | Clp_dualRowSolution (Clp_Simplex *model)
| Dual row solution.
COINLIBAPI double *COINLINKAGE | Clp_dualColumnSolution (Clp_Simplex *model)
| Reduced costs.
COINLIBAPI double *COINLINKAGE | Clp_rowLower (Clp_Simplex *model)
| Row lower.
COINLIBAPI double *COINLINKAGE | Clp_rowUpper (Clp_Simplex *model)
| Row upper.
COINLIBAPI double *COINLINKAGE | Clp_objective (Clp_Simplex *model)
| Objective.
COINLIBAPI double *COINLINKAGE | Clp_columnLower (Clp_Simplex *model)
| Column Lower.
COINLIBAPI double *COINLINKAGE | Clp_columnUpper (Clp_Simplex *model)
| Column Upper.
COINLIBAPI int COINLINKAGE | Clp_getNumElements (Clp_Simplex *model)
| Number of elements in matrix.
COINLIBAPI const CoinBigIndex *COINLINKAGE | Clp_getVectorStarts (Clp_Simplex *model)
| Number of rows.
COINLIBAPI const int *COINLINKAGE | Clp_getIndices (Clp_Simplex *model)
| Number of rows.
COINLIBAPI const int *COINLINKAGE | Clp_getVectorLengths (Clp_Simplex *model)
| Number of rows.
COINLIBAPI const double *COINLINKAGE | Clp_getElements (Clp_Simplex *model)
| Number of rows.
COINLIBAPI double COINLINKAGE | Clp_objectiveValue (Clp_Simplex *model)
| Objective value.
COINLIBAPI char *COINLINKAGE | Clp_integerInformation (Clp_Simplex *model)
| Integer information.
COINLIBAPI double *COINLINKAGE | Clp_infeasibilityRay (Clp_Simplex *model)
| Infeasibility/unbounded ray (NULL returned if none/wrong) Up to user to use delete [] on these arrays.
COINLIBAPI double *COINLINKAGE | Clp_unboundedRay (Clp_Simplex *model)
| Number of rows.
COINLIBAPI int COINLINKAGE | Clp_statusExists (Clp_Simplex *model)
| See if status array exists (partly for OsiClp).
COINLIBAPI unsigned char *COINLINKAGE | Clp_statusArray (Clp_Simplex *model)
| Return address of status array (char[numberRows+numberColumns]).
COINLIBAPI void COINLINKAGE | Clp_copyinStatus (Clp_Simplex *model, const unsigned char *statusArray)
| Copy in status vector.
COINLIBAPI int COINLINKAGE | Clp_getColumnStatus (Clp_Simplex *model, int sequence)
| Number of rows.
COINLIBAPI int COINLINKAGE | Clp_getRowStatus (Clp_Simplex *model, int sequence)
| Number of rows.
COINLIBAPI void COINLINKAGE | Clp_setColumnStatus (Clp_Simplex *model, int sequence, int value)
| Number of rows.
COINLIBAPI void COINLINKAGE | Clp_setRowStatus (Clp_Simplex *model, int sequence, int value)
| Number of rows.
COINLIBAPI void COINLINKAGE | Clp_setUserPointer (Clp_Simplex *model, void *pointer)
| User pointer for whatever reason.
COINLIBAPI void *COINLINKAGE | Clp_getUserPointer (Clp_Simplex *model)
| Number of rows.
## Message handling. Call backs are handled by ONE function
COINLIBAPI void COINLINKAGE | Clp_registerCallBack (Clp_Simplex *model, clp_callback userCallBack)
| Pass in Callback function.
COINLIBAPI void COINLINKAGE | Clp_clearCallBack (Clp_Simplex *model)
| Unset Callback function.
COINLIBAPI void COINLINKAGE | Clp_setLogLevel (Clp_Simplex *model, int value)
| Amount of print out: 0 - none 1 - just final 2 - just factorizations 3 - as 2 plus a bit more 4 - verbose above that 8,16,32 etc just for selective debug.
COINLIBAPI int COINLINKAGE | Clp_logLevel (Clp_Simplex *model)
| Pass in Callback function.
COINLIBAPI int COINLINKAGE | Clp_lengthNames (Clp_Simplex *model)
| length of names (0 means no names0
COINLIBAPI void COINLINKAGE | Clp_rowName (Clp_Simplex *model, int iRow, char *name)
| Fill in array (at least lengthNames+1 long) with a row name.
COINLIBAPI void COINLINKAGE | Clp_columnName (Clp_Simplex *model, int iColumn, char *name)
| Fill in array (at least lengthNames+1 long) with a column name.
## Functions most useful to user
COINLIBAPI int COINLINKAGE | Clp_initialSolve (Clp_Simplex *model)
| General solve algorithm which can do presolve.
COINLIBAPI int COINLINKAGE | Clp_initialDualSolve (Clp_Simplex *model)
| Dual initial solve.
COINLIBAPI int COINLINKAGE | Clp_initialPrimalSolve (Clp_Simplex *model)
| Primal initial solve.
COINLIBAPI int COINLINKAGE | Clp_initialBarrierSolve (Clp_Simplex *model)
| Barrier initial solve.
COINLIBAPI int COINLINKAGE | Clp_initialBarrierNoCrossSolve (Clp_Simplex *model)
| Barrier initial solve, no crossover.
COINLIBAPI int COINLINKAGE | Clp_dual (Clp_Simplex *model, int ifValuesPass)
| Dual algorithm - see ClpSimplexDual.hpp for method.
COINLIBAPI int COINLINKAGE | Clp_primal (Clp_Simplex *model, int ifValuesPass)
| Primal algorithm - see ClpSimplexPrimal.hpp for method.
COINLIBAPI void COINLINKAGE | Clp_scaling (Clp_Simplex *model, int mode)
| Sets or unsets scaling, 0 -off, 1 equilibrium, 2 geometric, 3, auto, 4 dynamic(later).
COINLIBAPI int COINLINKAGE | Clp_scalingFlag (Clp_Simplex *model)
| Gets scalingFlag.
COINLIBAPI int COINLINKAGE | Clp_crash (Clp_Simplex *model, double gap, int pivot)
| Crash - at present just aimed at dual, returns -2 if dual preferred and crash basis created -1 if dual preferred and all slack basis preferred 0 if basis going in was not all slack 1 if primal preferred and all slack basis preferred 2 if primal preferred and crash basis created.
## most useful gets and sets
COINLIBAPI int COINLINKAGE | Clp_primalFeasible (Clp_Simplex *model)
| If problem is primal feasible.
COINLIBAPI int COINLINKAGE | Clp_dualFeasible (Clp_Simplex *model)
| If problem is dual feasible.
COINLIBAPI double COINLINKAGE | Clp_dualBound (Clp_Simplex *model)
| Dual bound.
COINLIBAPI void COINLINKAGE | Clp_setDualBound (Clp_Simplex *model, double value)
| If problem is primal feasible.
COINLIBAPI double COINLINKAGE | Clp_infeasibilityCost (Clp_Simplex *model)
| Infeasibility cost.
COINLIBAPI void COINLINKAGE | Clp_setInfeasibilityCost (Clp_Simplex *model, double value)
| If problem is primal feasible.
COINLIBAPI int COINLINKAGE | Clp_perturbation (Clp_Simplex *model)
| Perturbation: 50 - switch on perturbation 100 - auto perturb if takes too long (1.0e-6 largest nonzero) 101 - we are perturbed 102 - don't try perturbing again default is 100 others are for playing.
COINLIBAPI void COINLINKAGE | Clp_setPerturbation (Clp_Simplex *model, int value)
| If problem is primal feasible.
COINLIBAPI int COINLINKAGE | Clp_algorithm (Clp_Simplex *model)
| Current (or last) algorithm.
COINLIBAPI void COINLINKAGE | Clp_setAlgorithm (Clp_Simplex *model, int value)
| Set algorithm.
COINLIBAPI double COINLINKAGE | Clp_sumDualInfeasibilities (Clp_Simplex *model)
| Sum of dual infeasibilities.
COINLIBAPI int COINLINKAGE | Clp_numberDualInfeasibilities (Clp_Simplex *model)
| Number of dual infeasibilities.
COINLIBAPI double COINLINKAGE | Clp_sumPrimalInfeasibilities (Clp_Simplex *model)
| Sum of primal infeasibilities.
COINLIBAPI int COINLINKAGE | Clp_numberPrimalInfeasibilities (Clp_Simplex *model)
| Number of primal infeasibilities.
COINLIBAPI int COINLINKAGE | Clp_saveModel (Clp_Simplex *model, const char *fileName)
| Save model to file, returns 0 if success.
COINLIBAPI int COINLINKAGE | Clp_restoreModel (Clp_Simplex *model, const char *fileName)
| Restore model from file, returns 0 if success, deletes current model.
COINLIBAPI void COINLINKAGE | Clp_checkSolution (Clp_Simplex *model)
| Just check solution (for external use) - sets sum of infeasibilities etc.
## gets and sets - some synonyms
COINLIBAPI int COINLINKAGE | Clp_getNumRows (Clp_Simplex *model)
| Number of rows.
COINLIBAPI int COINLINKAGE | Clp_getNumCols (Clp_Simplex *model)
| Number of columns.
COINLIBAPI int COINLINKAGE | Clp_getIterationCount (Clp_Simplex *model)
| Number of iterations.
COINLIBAPI int COINLINKAGE | Clp_isAbandoned (Clp_Simplex *model)
| Are there a numerical difficulties?
COINLIBAPI int COINLINKAGE | Clp_isProvenOptimal (Clp_Simplex *model)
| Is optimality proven?
COINLIBAPI int COINLINKAGE | Clp_isProvenPrimalInfeasible (Clp_Simplex *model)
| Is primal infeasiblity proven?
COINLIBAPI int COINLINKAGE | Clp_isProvenDualInfeasible (Clp_Simplex *model)
| Is dual infeasiblity proven?
COINLIBAPI int COINLINKAGE | Clp_isPrimalObjectiveLimitReached (Clp_Simplex *model)
| Is the given primal objective limit reached?
COINLIBAPI int COINLINKAGE | Clp_isDualObjectiveLimitReached (Clp_Simplex *model)
| Is the given dual objective limit reached?
COINLIBAPI int COINLINKAGE | Clp_isIterationLimitReached (Clp_Simplex *model)
| Iteration limit reached?
COINLIBAPI double COINLINKAGE | Clp_getObjSense (Clp_Simplex *model)
| Direction of optimization (1 - minimize, -1 - maximize, 0 - ignore.
COINLIBAPI const double *COINLINKAGE | Clp_getRowActivity (Clp_Simplex *model)
| Primal row solution.
COINLIBAPI const double *COINLINKAGE | Clp_getColSolution (Clp_Simplex *model)
| Primal column solution.
COINLIBAPI void COINLINKAGE | Clp_setColSolution (Clp_Simplex *model, const double *input)
| Number of rows.
COINLIBAPI const double *COINLINKAGE | Clp_getRowPrice (Clp_Simplex *model)
| Dual row solution.
COINLIBAPI const double *COINLINKAGE | Clp_getReducedCost (Clp_Simplex *model)
| Reduced costs.
COINLIBAPI const double *COINLINKAGE | Clp_getRowLower (Clp_Simplex *model)
| Row lower.
COINLIBAPI const double *COINLINKAGE | Clp_getRowUpper (Clp_Simplex *model)
| Row upper.
COINLIBAPI const double *COINLINKAGE | Clp_getObjCoefficients (Clp_Simplex *model)
| Objective.
COINLIBAPI const double *COINLINKAGE | Clp_getColLower (Clp_Simplex *model)
| Column Lower.
COINLIBAPI const double *COINLINKAGE | Clp_getColUpper (Clp_Simplex *model)
| Column Upper.
COINLIBAPI double COINLINKAGE | Clp_getObjValue (Clp_Simplex *model)
| Objective value.
COINLIBAPI void COINLINKAGE | Clp_printModel (Clp_Simplex *model, const char *prefix)
| Print model for debugging purposes.
COINLIBAPI double COINLINKAGE | Clp_getSmallElementValue (Clp_Simplex *model)
| Number of rows.
COINLIBAPI void COINLINKAGE | Clp_setSmallElementValue (Clp_Simplex *model, double value)
| Number of rows.

## Function Documentation

COINLIBAPI Clp_Simplex* COINLINKAGE Clp_newModel | ( | void |  | ) |

Default constructor.

COINLIBAPI void COINLINKAGE Clp_deleteModel | ( | Clp_Simplex * | model | ) |

Destructor.

COINLIBAPI void COINLINKAGE Clp_loadProblem | ( | Clp_Simplex * | model,
|  | 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() method except that the matrix is given in a standard column major ordered format (without gaps).

COINLIBAPI void COINLINKAGE Clp_loadQuadraticObjective | ( | Clp_Simplex * | model,
|  | const int | numberColumns,
|  | const CoinBigIndex * | start,
|  | const int * | column,
|  | const double * | element |
| ) |  |  |

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

COINLIBAPI int COINLINKAGE Clp_readMps | ( | Clp_Simplex * | model,
|  | const char * | filename,
|  | int | keepNames,
|  | int | ignoreErrors |
| ) |  |  |

Read an mps file from the given filename.

COINLIBAPI void COINLINKAGE Clp_copyInIntegerInformation | ( | Clp_Simplex * | model,
|  | const char * | information |
| ) |  |  |

Copy in integer informations.

COINLIBAPI void COINLINKAGE Clp_deleteIntegerInformation | ( | Clp_Simplex * | model | ) |

Drop integer informations.

COINLIBAPI void COINLINKAGE Clp_resize | ( | Clp_Simplex * | model,
|  | int | newNumberRows,
|  | int | newNumberColumns |
| ) |  |  |

Resizes rim part of model.

COINLIBAPI void COINLINKAGE Clp_deleteRows | ( | Clp_Simplex * | model,
|  | int | number,
|  | const int * | which |
| ) |  |  |

Deletes rows.

COINLIBAPI void COINLINKAGE Clp_addRows | ( | Clp_Simplex * | model,
|  | int | number,
|  | const double * | rowLower,
|  | const double * | rowUpper,
|  | const int * | rowStarts,
|  | const int * | columns,
|  | const double * | elements |
| ) |  |  |

Add rows.

COINLIBAPI void COINLINKAGE Clp_deleteColumns | ( | Clp_Simplex * | model,
|  | int | number,
|  | const int * | which |
| ) |  |  |

Deletes columns.

COINLIBAPI void COINLINKAGE Clp_addColumns | ( | Clp_Simplex * | model,
|  | int | number,
|  | const double * | columnLower,
|  | const double * | columnUpper,
|  | const double * | objective,
|  | const int * | columnStarts,
|  | const int * | rows,
|  | const double * | elements |
| ) |  |  |

Add columns.

COINLIBAPI void COINLINKAGE Clp_chgRowLower | ( | Clp_Simplex * | model,
|  | const double * | rowLower |
| ) |  |  |

Change row lower bounds.

COINLIBAPI void COINLINKAGE Clp_chgRowUpper | ( | Clp_Simplex * | model,
|  | const double * | rowUpper |
| ) |  |  |

Change row upper bounds.

COINLIBAPI void COINLINKAGE Clp_chgColumnLower | ( | Clp_Simplex * | model,
|  | const double * | columnLower |
| ) |  |  |

Change column lower bounds.

COINLIBAPI void COINLINKAGE Clp_chgColumnUpper | ( | Clp_Simplex * | model,
|  | const double * | columnUpper |
| ) |  |  |

Change column upper bounds.

COINLIBAPI void COINLINKAGE Clp_chgObjCoefficients | ( | Clp_Simplex * | model,
|  | const double * | objIn |
| ) |  |  |

Change objective coefficients.

COINLIBAPI void COINLINKAGE Clp_dropNames | ( | Clp_Simplex * | model | ) |

Drops names - makes lengthnames 0 and names empty.

COINLIBAPI void COINLINKAGE Clp_copyNames | ( | Clp_Simplex * | model,
|  | const char *const * | rowNames,
|  | const char *const * | columnNames |
| ) |  |  |

Copies in names.

COINLIBAPI int COINLINKAGE Clp_numberRows | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI int COINLINKAGE Clp_numberColumns | ( | Clp_Simplex * | model | ) |

Number of columns.

COINLIBAPI double COINLINKAGE Clp_primalTolerance | ( | Clp_Simplex * | model | ) |

Primal tolerance to use.

COINLIBAPI void COINLINKAGE Clp_setPrimalTolerance | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.

COINLIBAPI double COINLINKAGE Clp_dualTolerance | ( | Clp_Simplex * | model | ) |

Dual tolerance to use.

COINLIBAPI void COINLINKAGE Clp_setDualTolerance | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.

COINLIBAPI double COINLINKAGE Clp_dualObjectiveLimit | ( | Clp_Simplex * | model | ) |

Dual objective limit.

COINLIBAPI void COINLINKAGE Clp_setDualObjectiveLimit | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.

COINLIBAPI double COINLINKAGE Clp_objectiveOffset | ( | Clp_Simplex * | model | ) |

Objective offset.

COINLIBAPI void COINLINKAGE Clp_setObjectiveOffset | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.

COINLIBAPI void COINLINKAGE Clp_problemName | ( | Clp_Simplex * | model,
|  | int | maxNumberCharacters,
|  | char * | array |
| ) |  |  |

Fills in array with problem name.

COINLIBAPI int COINLINKAGE Clp_setProblemName | ( | Clp_Simplex * | model,
|  | int | maxNumberCharacters,
|  | char * | array |
| ) |  |  |

Number of rows.

COINLIBAPI int COINLINKAGE Clp_numberIterations | ( | Clp_Simplex * | model | ) |

Number of iterations.

COINLIBAPI void COINLINKAGE Clp_setNumberIterations | ( | Clp_Simplex * | model,
|  | int | numberIterations |
| ) |  |  |

Number of rows.

COINLIBAPI int maximumIterations | ( | Clp_Simplex * | model | ) |

Maximum number of iterations.

COINLIBAPI void COINLINKAGE Clp_setMaximumIterations | ( | Clp_Simplex * | model,
|  | int | value |
| ) |  |  |

Number of rows.

COINLIBAPI double COINLINKAGE Clp_maximumSeconds | ( | Clp_Simplex * | model | ) |

Maximum time in seconds (from when set called).

COINLIBAPI void COINLINKAGE Clp_setMaximumSeconds | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.

COINLIBAPI int COINLINKAGE Clp_hitMaximumIterations | ( | Clp_Simplex * | model | ) |

Returns true if hit maximum iterations (or time).

COINLIBAPI int COINLINKAGE Clp_status | ( | Clp_Simplex * | model | ) |

Status of problem: 0 - optimal 1 - primal infeasible 2 - dual infeasible 3 - stopped on iterations etc 4 - stopped due to errors.

COINLIBAPI void COINLINKAGE Clp_setProblemStatus | ( | Clp_Simplex * | model,
|  | int | problemStatus |
| ) |  |  |

Set problem status.

COINLIBAPI int COINLINKAGE Clp_secondaryStatus | ( | Clp_Simplex * | model | ) |

Secondary status of problem - may get extended 0 - none 1 - primal infeasible because dual limit reached 2 - scaled problem optimal - unscaled has primal infeasibilities 3 - scaled problem optimal - unscaled has dual infeasibilities 4 - scaled problem optimal - unscaled has both dual and primal infeasibilities.

COINLIBAPI void COINLINKAGE Clp_setSecondaryStatus | ( | Clp_Simplex * | model,
|  | int | status |
| ) |  |  |

Number of rows.

COINLIBAPI double COINLINKAGE Clp_optimizationDirection | ( | Clp_Simplex * | model | ) |

Direction of optimization (1 - minimize, -1 - maximize, 0 - ignore.

COINLIBAPI void COINLINKAGE Clp_setOptimizationDirection | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.

COINLIBAPI double* COINLINKAGE Clp_primalRowSolution | ( | Clp_Simplex * | model | ) |

Primal row solution.

COINLIBAPI double* COINLINKAGE Clp_primalColumnSolution | ( | Clp_Simplex * | model | ) |

Primal column solution.

COINLIBAPI double* COINLINKAGE Clp_dualRowSolution | ( | Clp_Simplex * | model | ) |

Dual row solution.

COINLIBAPI double* COINLINKAGE Clp_dualColumnSolution | ( | Clp_Simplex * | model | ) |

Reduced costs.

COINLIBAPI double* COINLINKAGE Clp_rowLower | ( | Clp_Simplex * | model | ) |

Row lower.

COINLIBAPI double* COINLINKAGE Clp_rowUpper | ( | Clp_Simplex * | model | ) |

Row upper.

COINLIBAPI double* COINLINKAGE Clp_objective | ( | Clp_Simplex * | model | ) |

Objective.

COINLIBAPI double* COINLINKAGE Clp_columnLower | ( | Clp_Simplex * | model | ) |

Column Lower.

COINLIBAPI double* COINLINKAGE Clp_columnUpper | ( | Clp_Simplex * | model | ) |

Column Upper.

COINLIBAPI int COINLINKAGE Clp_getNumElements | ( | Clp_Simplex * | model | ) |

Number of elements in matrix.

COINLIBAPI const CoinBigIndex* COINLINKAGE Clp_getVectorStarts | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI const int* COINLINKAGE Clp_getIndices | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI const int* COINLINKAGE Clp_getVectorLengths | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI const double* COINLINKAGE Clp_getElements | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI double COINLINKAGE Clp_objectiveValue | ( | Clp_Simplex * | model | ) |

Objective value.

COINLIBAPI char* COINLINKAGE Clp_integerInformation | ( | Clp_Simplex * | model | ) |

Integer information.

COINLIBAPI double* COINLINKAGE Clp_infeasibilityRay | ( | Clp_Simplex * | model | ) |

Infeasibility/unbounded ray (NULL returned if none/wrong) Up to user to use delete [] on these arrays.

COINLIBAPI double* COINLINKAGE Clp_unboundedRay | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI int COINLINKAGE Clp_statusExists | ( | Clp_Simplex * | model | ) |

See if status array exists (partly for OsiClp).

COINLIBAPI unsigned char* COINLINKAGE Clp_statusArray | ( | Clp_Simplex * | model | ) |

Return address of status array (char[numberRows+numberColumns]).

COINLIBAPI void COINLINKAGE Clp_copyinStatus | ( | Clp_Simplex * | model,
|  | const unsigned char * | statusArray |
| ) |  |  |

Copy in status vector.

COINLIBAPI int COINLINKAGE Clp_getColumnStatus | ( | Clp_Simplex * | model,
|  | int | sequence |
| ) |  |  |

Number of rows.

COINLIBAPI int COINLINKAGE Clp_getRowStatus | ( | Clp_Simplex * | model,
|  | int | sequence |
| ) |  |  |

Number of rows.

COINLIBAPI void COINLINKAGE Clp_setColumnStatus | ( | Clp_Simplex * | model,
|  | int | sequence,
|  | int | value |
| ) |  |  |

Number of rows.

COINLIBAPI void COINLINKAGE Clp_setRowStatus | ( | Clp_Simplex * | model,
|  | int | sequence,
|  | int | value |
| ) |  |  |

Number of rows.

COINLIBAPI void COINLINKAGE Clp_setUserPointer | ( | Clp_Simplex * | model,
|  | void * | pointer |
| ) |  |  |

User pointer for whatever reason.

COINLIBAPI void* COINLINKAGE Clp_getUserPointer | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI void COINLINKAGE Clp_registerCallBack | ( | Clp_Simplex * | model,
|  | clp_callback | userCallBack |
| ) |  |  |

Pass in Callback function.

Message numbers up to 1000000 are Clp, Coin ones have 1000000 added

COINLIBAPI void COINLINKAGE Clp_clearCallBack | ( | Clp_Simplex * | model | ) |

Unset Callback function.

COINLIBAPI void COINLINKAGE Clp_setLogLevel | ( | Clp_Simplex * | model,
|  | int | value |
| ) |  |  |

Amount of print out: 0 - none 1 - just final 2 - just factorizations 3 - as 2 plus a bit more 4 - verbose above that 8,16,32 etc just for selective debug.

COINLIBAPI int COINLINKAGE Clp_logLevel | ( | Clp_Simplex * | model | ) |

Pass in Callback function.

Message numbers up to 1000000 are Clp, Coin ones have 1000000 added

COINLIBAPI int COINLINKAGE Clp_lengthNames | ( | Clp_Simplex * | model | ) |

length of names (0 means no names0

COINLIBAPI void COINLINKAGE Clp_rowName | ( | Clp_Simplex * | model,
|  | int | iRow,
|  | char * | name |
| ) |  |  |

Fill in array (at least lengthNames+1 long) with a row name.

COINLIBAPI void COINLINKAGE Clp_columnName | ( | Clp_Simplex * | model,
|  | int | iColumn,
|  | char * | name |
| ) |  |  |

Fill in array (at least lengthNames+1 long) with a column name.

COINLIBAPI int COINLINKAGE Clp_initialSolve | ( | Clp_Simplex * | model | ) |

General solve algorithm which can do presolve.

See ClpSolve.hpp for options

COINLIBAPI int COINLINKAGE Clp_initialDualSolve | ( | Clp_Simplex * | model | ) |

Dual initial solve.

COINLIBAPI int COINLINKAGE Clp_initialPrimalSolve | ( | Clp_Simplex * | model | ) |

Primal initial solve.

COINLIBAPI int COINLINKAGE Clp_initialBarrierSolve | ( | Clp_Simplex * | model | ) |

Barrier initial solve.

COINLIBAPI int COINLINKAGE Clp_initialBarrierNoCrossSolve | ( | Clp_Simplex * | model | ) |

Barrier initial solve, no crossover.

COINLIBAPI int COINLINKAGE Clp_dual | ( | Clp_Simplex * | model,
|  | int | ifValuesPass |
| ) |  |  |

Dual algorithm - see ClpSimplexDual.hpp for method.

COINLIBAPI int COINLINKAGE Clp_primal | ( | Clp_Simplex * | model,
|  | int | ifValuesPass |
| ) |  |  |

Primal algorithm - see ClpSimplexPrimal.hpp for method.

COINLIBAPI void COINLINKAGE Clp_scaling | ( | Clp_Simplex * | model,
|  | int | mode |
| ) |  |  |

Sets or unsets scaling, 0 -off, 1 equilibrium, 2 geometric, 3, auto, 4 dynamic(later).

COINLIBAPI int COINLINKAGE Clp_scalingFlag | ( | Clp_Simplex * | model | ) |

Gets scalingFlag.

COINLIBAPI int COINLINKAGE Clp_crash | ( | Clp_Simplex * | model,
|  | double | gap,
|  | int | pivot |
| ) |  |  |

Crash - at present just aimed at dual, returns -2 if dual preferred and crash basis created -1 if dual preferred and all slack basis preferred 0 if basis going in was not all slack 1 if primal preferred and all slack basis preferred 2 if primal preferred and crash basis created.

if gap between bounds <="gap" variables can be flipped

If "pivot" is 0 No pivoting (so will just be choice of algorithm) 1 Simple pivoting e.g. gub 2 Mini iterations

COINLIBAPI int COINLINKAGE Clp_primalFeasible | ( | Clp_Simplex * | model | ) |

If problem is primal feasible.

COINLIBAPI int COINLINKAGE Clp_dualFeasible | ( | Clp_Simplex * | model | ) |

If problem is dual feasible.

COINLIBAPI double COINLINKAGE Clp_dualBound | ( | Clp_Simplex * | model | ) |

Dual bound.

COINLIBAPI void COINLINKAGE Clp_setDualBound | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

If problem is primal feasible.

COINLIBAPI double COINLINKAGE Clp_infeasibilityCost | ( | Clp_Simplex * | model | ) |

Infeasibility cost.

COINLIBAPI void COINLINKAGE Clp_setInfeasibilityCost | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

If problem is primal feasible.

COINLIBAPI int COINLINKAGE Clp_perturbation | ( | Clp_Simplex * | model | ) |

Perturbation: 50 - switch on perturbation 100 - auto perturb if takes too long (1.0e-6 largest nonzero) 101 - we are perturbed 102 - don't try perturbing again default is 100 others are for playing.

COINLIBAPI void COINLINKAGE Clp_setPerturbation | ( | Clp_Simplex * | model,
|  | int | value |
| ) |  |  |

If problem is primal feasible.

COINLIBAPI int COINLINKAGE Clp_algorithm | ( | Clp_Simplex * | model | ) |

Current (or last) algorithm.

COINLIBAPI void COINLINKAGE Clp_setAlgorithm | ( | Clp_Simplex * | model,
|  | int | value |
| ) |  |  |

Set algorithm.

COINLIBAPI double COINLINKAGE Clp_sumDualInfeasibilities | ( | Clp_Simplex * | model | ) |

Sum of dual infeasibilities.

COINLIBAPI int COINLINKAGE Clp_numberDualInfeasibilities | ( | Clp_Simplex * | model | ) |

Number of dual infeasibilities.

COINLIBAPI double COINLINKAGE Clp_sumPrimalInfeasibilities | ( | Clp_Simplex * | model | ) |

Sum of primal infeasibilities.

COINLIBAPI int COINLINKAGE Clp_numberPrimalInfeasibilities | ( | Clp_Simplex * | model | ) |

Number of primal infeasibilities.

COINLIBAPI int COINLINKAGE Clp_saveModel | ( | Clp_Simplex * | model,
|  | const char * | fileName |
| ) |  |  |

Save model to file, returns 0 if success.

This is designed for use outside algorithms so does not save iterating arrays etc. It does not save any messaging information. Does not save scaling values. It does not know about all types of virtual functions.

COINLIBAPI int COINLINKAGE Clp_restoreModel | ( | Clp_Simplex * | model,
|  | const char * | fileName |
| ) |  |  |

Restore model from file, returns 0 if success, deletes current model.

COINLIBAPI void COINLINKAGE Clp_checkSolution | ( | Clp_Simplex * | model | ) |

Just check solution (for external use) - sets sum of infeasibilities etc.

COINLIBAPI int COINLINKAGE Clp_getNumRows | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI int COINLINKAGE Clp_getNumCols | ( | Clp_Simplex * | model | ) |

Number of columns.

COINLIBAPI int COINLINKAGE Clp_getIterationCount | ( | Clp_Simplex * | model | ) |

Number of iterations.

COINLIBAPI int COINLINKAGE Clp_isAbandoned | ( | Clp_Simplex * | model | ) |

Are there a numerical difficulties?

COINLIBAPI int COINLINKAGE Clp_isProvenOptimal | ( | Clp_Simplex * | model | ) |

Is optimality proven?

COINLIBAPI int COINLINKAGE Clp_isProvenPrimalInfeasible | ( | Clp_Simplex * | model | ) |

Is primal infeasiblity proven?

COINLIBAPI int COINLINKAGE Clp_isProvenDualInfeasible | ( | Clp_Simplex * | model | ) |

Is dual infeasiblity proven?

COINLIBAPI int COINLINKAGE Clp_isPrimalObjectiveLimitReached | ( | Clp_Simplex * | model | ) |

Is the given primal objective limit reached?

COINLIBAPI int COINLINKAGE Clp_isDualObjectiveLimitReached | ( | Clp_Simplex * | model | ) |

Is the given dual objective limit reached?

COINLIBAPI int COINLINKAGE Clp_isIterationLimitReached | ( | Clp_Simplex * | model | ) |

Iteration limit reached?

COINLIBAPI double COINLINKAGE Clp_getObjSense | ( | Clp_Simplex * | model | ) |

Direction of optimization (1 - minimize, -1 - maximize, 0 - ignore.

COINLIBAPI const double* COINLINKAGE Clp_getRowActivity | ( | Clp_Simplex * | model | ) |

Primal row solution.

COINLIBAPI const double* COINLINKAGE Clp_getColSolution | ( | Clp_Simplex * | model | ) |

Primal column solution.

COINLIBAPI void COINLINKAGE Clp_setColSolution | ( | Clp_Simplex * | model,
|  | const double * | input |
| ) |  |  |

Number of rows.

COINLIBAPI const double* COINLINKAGE Clp_getRowPrice | ( | Clp_Simplex * | model | ) |

Dual row solution.

COINLIBAPI const double* COINLINKAGE Clp_getReducedCost | ( | Clp_Simplex * | model | ) |

Reduced costs.

COINLIBAPI const double* COINLINKAGE Clp_getRowLower | ( | Clp_Simplex * | model | ) |

Row lower.

COINLIBAPI const double* COINLINKAGE Clp_getRowUpper | ( | Clp_Simplex * | model | ) |

Row upper.

COINLIBAPI const double* COINLINKAGE Clp_getObjCoefficients | ( | Clp_Simplex * | model | ) |

Objective.

COINLIBAPI const double* COINLINKAGE Clp_getColLower | ( | Clp_Simplex * | model | ) |

Column Lower.

COINLIBAPI const double* COINLINKAGE Clp_getColUpper | ( | Clp_Simplex * | model | ) |

Column Upper.

COINLIBAPI double COINLINKAGE Clp_getObjValue | ( | Clp_Simplex * | model | ) |

Objective value.

COINLIBAPI void COINLINKAGE Clp_printModel | ( | Clp_Simplex * | model,
|  | const char * | prefix |
| ) |  |  |

Print model for debugging purposes.

COINLIBAPI double COINLINKAGE Clp_getSmallElementValue | ( | Clp_Simplex * | model | ) |

Number of rows.

COINLIBAPI void COINLINKAGE Clp_setSmallElementValue | ( | Clp_Simplex * | model,
|  | double | value |
| ) |  |  |

Number of rows.