Detailed Description

methods used by the majority of operations involving floating-point computations in SCIP

query the numerical tolerances of SCIP, as well as special values such as infinity.
change tolerances inside relaxations
epsilon-comparison methods for floating point numbers

Functions
SCIP_Real	SCIPepsilon (SCIP *scip)

SCIP_Real	SCIPsumepsilon (SCIP *scip)

SCIP_Real	SCIPfeastol (SCIP *scip)

SCIP_Real	SCIPlpfeastol (SCIP *scip)

SCIP_Real	SCIPdualfeastol (SCIP *scip)

SCIP_Real	SCIPbarrierconvtol (SCIP *scip)

SCIP_Real	SCIPcutoffbounddelta (SCIP *scip)

SCIP_Real	SCIPrelaxfeastol (SCIP *scip)

SCIP_RETCODE	SCIPchgFeastol (SCIP *scip, SCIP_Real feastol)

SCIP_RETCODE	SCIPchgLpfeastol (SCIP *scip, SCIP_Real lpfeastol, SCIP_Bool printnewvalue)

SCIP_RETCODE	SCIPchgDualfeastol (SCIP *scip, SCIP_Real dualfeastol)

SCIP_RETCODE	SCIPchgBarrierconvtol (SCIP *scip, SCIP_Real barrierconvtol)

SCIP_Real	SCIPchgRelaxfeastol (SCIP *scip, SCIP_Real relaxfeastol)

void	SCIPmarkLimitChanged (SCIP *scip)

SCIP_Real	SCIPinfinity (SCIP *scip)

SCIP_Real	SCIPgetHugeValue (SCIP *scip)

SCIP_Bool	SCIPisEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisInfinity (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisHugeValue (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisIntegral (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisScalingIntegral (SCIP *scip, SCIP_Real val, SCIP_Real scalar)

SCIP_Bool	SCIPisFracIntegral (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfloor (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPceil (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPround (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfrac (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisSumEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisSumPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisSumNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasIntegral (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasFracIntegral (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasFloor (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasCeil (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasRound (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasFrac (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasIntegral (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasFracIntegral (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasFloor (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasCeil (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasRound (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasFrac (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisLbBetter (SCIP *scip, SCIP_Real newlb, SCIP_Real oldlb, SCIP_Real oldub)

SCIP_Bool	SCIPisUbBetter (SCIP *scip, SCIP_Real newub, SCIP_Real oldlb, SCIP_Real oldub)

SCIP_Bool	SCIPisRelEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

int	SCIPconvertRealToInt (SCIP *scip, SCIP_Real real)

SCIP_Longint	SCIPconvertRealToLongint (SCIP *scip, SCIP_Real real)

SCIP_Bool	SCIPisUpdateUnreliable (SCIP *scip, SCIP_Real newvalue, SCIP_Real oldvalue)

void	SCIPprintReal (SCIP scip, FILE file, SCIP_Real val, int width, int precision)

SCIP_Bool	SCIPparseReal (SCIP scip, const char str, SCIP_Real value, char *endptr)

Function Documentation

◆ SCIPepsilon()

SCIP_Real SCIPepsilon ( SCIP * scip )

returns value treated as zero

Returns: value treated as zero

Parameters

scip	SCIP data structure

Definition at line 46415 of file scip.c.

References SCIPsetEpsilon(), and Scip::set.

Referenced by addCut(), checkRedundancySide(), computeFixingOrder(), computeMIREfficacy(), createCGCutCMIR(), createCGCutStrongCG(), cutsRoundMIR(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutsTransformStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), evaluateCutNumerics(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), getInteriority(), prettifyConss(), propagateBounds(), propagateBoundsCons(), removeZeros(), removeZerosQuad(), rowprepCleanupSide(), SCIP_DECL_CONSEXITPRE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_PRESOLEXEC(), SCIPanalyzeDeductionsProbing(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPcreateFiniteSolCopy(), SCIPcutGenerationHeuristicCMIR(), SCIPgetConcurrentGap(), SCIPseparateRelaxedKnapsack(), solveSubNLP(), and transformNonIntegralRow().

◆ SCIPsumepsilon()

SCIP_Real SCIPsumepsilon ( SCIP * scip )

returns value treated as zero for sums of floating point values

Returns: value treated as zero for sums of floating point values

Parameters

scip	SCIP data structure

Definition at line 46429 of file scip.c.

References SCIPsetSumepsilon(), and Scip::set.

Referenced by addCut(), chooseVeclenVar(), createCGCutCMIR(), createCGCutStrongCG(), createNLP(), createSubproblem(), cutsTransformMIR(), cutTightenCoefs(), cutTightenCoefsQuad(), doSolveSubMIP(), evaluateCutNumerics(), generateDisjCutSOS1(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getVectorOfWeights(), postprocessCut(), postprocessCutQuad(), SCIP_DECL_HEUREXEC(), SCIPaggrRowRemoveZeros(), SCIPapplyHeurSubNlp(), SCIPcalcFlowCover(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPcutGenerationHeuristicCMIR(), SCIPincludeHeurMutation(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipMutation(), setupSubScip(), solveCoveringProblem(), transformNonIntegralRow(), wrapperDins(), and wrapperRins().

◆ SCIPfeastol()

SCIP_Real SCIPfeastol ( SCIP * scip )

returns feasibility tolerance for constraints

Returns: feasibility tolerance for constraints

Parameters

scip	SCIP data structure

Definition at line 46443 of file scip.c.

References SCIPsetFeastol(), and Scip::set.

Referenced by addLinearization(), adjustCutoffbound(), analyzeConflict(), analyzeConflictLowerbound(), analyzeConflictUpperbound(), analyzeGenVBoundConflict(), applyNlobbt(), calcScore(), checkCons(), computeInteriorPoint(), computeRelaxedLowerbound(), computeRelaxedUpperbound(), computeViolation(), computeViolations(), cutTightenCoefs(), cutTightenCoefsQuad(), displayRelevantStats(), enforceConflictgraph(), enforceConstraint(), enforceViolatedFixedNonlinear(), fixAlmostFixedX(), generateCut(), getBranchingDecisionStrongbranchSOS1(), getNLPFracVars(), heurExec(), performStrongbranchSOS1(), postprocessCut(), postprocessCutQuad(), presolveTryAddLinearReform(), prettifyConss(), propagateBounds(), propagateBoundsCons(), propagateConstraintSides(), proposeBranchingPoint(), proposeFeasibleSolution(), registerBranchingCandidates(), registerBranchingCandidatesCentrality(), registerBranchingCandidatesGap(), registerBranchingCandidatesViolation(), registerBranchingVariables(), registerLargeRelaxValueVariableForBranching(), replaceByLinearConstraints(), replaceViolatedByLinearConstraints(), resolvePropagation(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_HEUREXEC(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPapplyProximity(), SCIPprocessShellArguments(), SCIPsolveKnapsackApproximatelyLT(), SCIPvalidateSolve(), separateCuts(), separatePoint(), sepaSubtour(), setupAndSolveSubscip(), and solveSubNLP().

◆ SCIPlpfeastol()

SCIP_Real SCIPlpfeastol ( SCIP * scip )

returns primal feasibility tolerance of LP solver

Returns: primal feasibility tolerance of LP solver

Parameters

scip	SCIP data structure

Definition at line 46457 of file scip.c.

References SCIPsetLpfeastol(), and Scip::set.

Referenced by enforceConstraint(), and separatePoint().

◆ SCIPdualfeastol()

SCIP_Real SCIPdualfeastol ( SCIP * scip )

returns feasibility tolerance for reduced costs

Returns: feasibility tolerance for reduced costs

Parameters

scip	SCIP data structure

Definition at line 46471 of file scip.c.

References SCIPsetDualfeastol(), and Scip::set.

Referenced by computeInteriorPoint(), heurExec(), and separateCuts().

◆ SCIPbarrierconvtol()

SCIP_Real SCIPbarrierconvtol ( SCIP * scip )

returns convergence tolerance used in barrier algorithm

Returns: convergence tolerance used in barrier algorithm

Parameters

scip	SCIP data structure

Definition at line 46485 of file scip.c.

References SCIPsetBarrierconvtol(), and Scip::set.

◆ SCIPcutoffbounddelta()

SCIP_Real SCIPcutoffbounddelta ( SCIP * scip )

return the cutoff bound delta

Returns: cutoff bound data

Parameters

scip	SCIP data structure

Definition at line 46499 of file scip.c.

References SCIPsetCutoffbounddelta(), and Scip::set.

Referenced by updateObjUpperbound().

◆ SCIPrelaxfeastol()

SCIP_Real SCIPrelaxfeastol ( SCIP * scip )

return the relaxation primal feasibility tolerance

See also: SCIPchgRelaxfeastol

Returns: relaxfeastol

Parameters

scip	SCIP data structure

Definition at line 46514 of file scip.c.

References SCIPsetRelaxfeastol(), and Scip::set.

◆ SCIPchgFeastol()

SCIP_RETCODE SCIPchgFeastol	(	SCIP *	scip,
		SCIP_Real	feastol
	)

sets the feasibility tolerance for constraints

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
feastol	new feasibility tolerance for constraints

Definition at line 46529 of file scip.c.

References SCIP_CALL, SCIP_OKAY, SCIPsetSetFeastol(), and Scip::set.

Referenced by displayRelevantStats(), SCIP_DECL_DIALOGEXEC(), and SCIPvalidateSolve().

◆ SCIPchgLpfeastol()

SCIP_RETCODE SCIPchgLpfeastol	(	SCIP *	scip,
		SCIP_Real	lpfeastol,
		SCIP_Bool	printnewvalue
	)

sets the primal feasibility tolerance of LP solver

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
lpfeastol	new primal feasibility tolerance of LP solver
printnewvalue	should "numerics/lpfeastol = ..." be printed?

Definition at line 46547 of file scip.c.

References FALSE, Scip::lp, SCIP_Lp::lpsolstat, SCIP_CALL, SCIP_LPSOLSTAT_NOTSOLVED, SCIP_OKAY, SCIPsetLpfeastol(), SCIPsetSetLpfeastol(), Scip::set, and SCIP_Lp::solved.

Referenced by SCIPsetExitsolPlugins().

◆ SCIPchgDualfeastol()

SCIP_RETCODE SCIPchgDualfeastol	(	SCIP *	scip,
		SCIP_Real	dualfeastol
	)

sets the feasibility tolerance for reduced costs

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
dualfeastol	new feasibility tolerance for reduced costs

Definition at line 46573 of file scip.c.

References FALSE, Scip::lp, SCIP_Lp::lpsolstat, SCIP_CALL, SCIP_LPSOLSTAT_NOTSOLVED, SCIP_OKAY, SCIPsetDualfeastol(), SCIPsetSetDualfeastol(), Scip::set, and SCIP_Lp::solved.

◆ SCIPchgBarrierconvtol()

SCIP_RETCODE SCIPchgBarrierconvtol	(	SCIP *	scip,
		SCIP_Real	barrierconvtol
	)

sets the convergence tolerance used in barrier algorithm

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
barrierconvtol	new convergence tolerance used in barrier algorithm

Definition at line 46598 of file scip.c.

References FALSE, SCIP_Lp::lastlpalgo, Scip::lp, SCIP_CALL, SCIP_LPALGO_BARRIER, SCIP_LPALGO_BARRIERCROSSOVER, SCIP_OKAY, SCIPsetBarrierconvtol(), SCIPsetSetBarrierconvtol(), Scip::set, and SCIP_Lp::solved.

◆ SCIPchgRelaxfeastol()

SCIP_Real SCIPchgRelaxfeastol	(	SCIP *	scip,
		SCIP_Real	relaxfeastol
	)

sets the primal feasibility tolerance of relaxations

This tolerance value is used by the SCIP core and plugins to tighten then feasibility tolerance on relaxations (especially the LP relaxation) during a solve. It is set to SCIP_INVALID initially, which means that only the feasibility tolerance of the particular relaxation is taken into account. If set to a valid value, however, then this value should be used to reduce the primal feasibility tolerance of a relaxation (thus, use the minimum of relaxfeastol and the relaxations primal feastol).

Precondition

The value of relaxfeastol is reset to SCIP_INVALID when initializing the solve (INITSOL). Therefore, this method can only be called in one of the following stages of the SCIP solving process:

Returns: previous value of relaxfeastol

Parameters

scip	SCIP data structure
relaxfeastol	new primal feasibility tolerance of relaxations

Definition at line 46631 of file scip.c.

References checkStage(), FALSE, SCIP_CALL_ABORT, SCIPsetSetRelaxfeastol(), Scip::set, and TRUE.

◆ SCIPmarkLimitChanged()

void SCIPmarkLimitChanged ( SCIP * scip )

marks that some limit parameter was changed

Parameters

scip	SCIP data structure

Definition at line 46645 of file scip.c.

References SCIPsetSetLimitChanged(), and Scip::set.

◆ SCIPinfinity()

SCIP_Real SCIPinfinity ( SCIP * scip )

returns value treated as infinity

Parameters

scip	SCIP data structure

Definition at line 47028 of file scip.c.

References SCIPsetInfinity(), and Scip::set.

Referenced by addAltLPConstraint(), addBranchingComplementaritiesSOS1(), addBranchingDecisionConss(), addCut(), addExtendedAsymmetricFormulation(), addIntervalGradientEstimator(), addKnapsackConstraints(), addLinearizationCuts(), addLocalBranchingConstraint(), addLogicOrConstraints(), addOrbisackCover(), addOrbisackInequality(), addRegularScholtes(), addRelaxation(), addRow(), addSetppcConstraints(), addSymresackInequality(), addUserEstimator(), aggregation(), applyCliqueFixings(), applyFixings(), applyHeur(), buildMod2Matrix(), calcActivityBounds(), calcColActivity(), calcColActResidual(), calcNewSidesAfterAggregation(), calculateBounds(), calcVarBoundsDominated(), calcVarBoundsDominating(), checkCurvature(), checkCurvatureEasy(), checkFixedVariables(), chgLhs(), chgRhs(), chooseFracVar(), chooseGuidedVar(), computeBoundsX(), computeBoundsZ(), computeCut(), computeFixingOrder(), computeInteriorPoint(), computeLiftingData(), computeSymmetryGroup(), computeVarsCoverSOS1(), computeViolation(), consdataCheckNonbinvar(), consdataComputePseudoActivity(), consdataCreate(), consdataCreateEmpty(), consdataGetActivity(), consdataRecomputeMaxActivityDelta(), constructCompression(), CREATE_CONSTRAINT(), createAndAddLinearCons(), createCapacityRestriction(), createCapacityRestrictionIntvars(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createConstraints(), createCoverCutsTimepoint(), createCoveringProblem(), createDepthinfo(), createKKTComplementarityBinary(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createKKTDualCons(), createNAryBranch(), createNLP(), createNlRow(), createObjRow(), createPrecedenceCons(), createRelaxation(), createRow(), createSubproblem(), createSubSCIP(), createSubscip(), createVarUbs(), determineBoundForSNF(), disaggregate(), displayRelevantStats(), dualBoundStrengthening(), dualPresolve(), dualPresolving(), enforceCardinality(), enforceConflictgraph(), enforceViolatedFixedNonlinear(), evalLhs(), execRelpscost(), extendToCover(), extractLinearValues(), findDominancePairs(), fixVariable(), forbidCover(), generate1ConvexIndefiniteUnderestimator(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternA(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternB(), generateBoundInequalityFromSOS1Nodes(), generateConvexConcaveEstimator(), generateConvexConcaveUnderestimator(), generateCut(), generateCutFactorable(), generateCutLTI(), generateCutUnboundedLP(), generateDisjCutSOS1(), generateLinearizationCut(), generateOddCycleCut(), generateOverestimatingHyperplaneCut(), generateRowCardinality(), generateRowSOS2(), generateZerohalfCut(), getActivities(), getActivityResiduals(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBoundConsFromVertices(), getBranchingDecisionStrongbranchSOS1(), getBranchingPrioritiesSOS1(), getClosestVlb(), getClosestVub(), getCurrentRegressionTangentAxisIntercept(), getDualbound(), getGenVBoundsBound(), getGenVBoundsMinActivity(), getGenVBoundsMinActivityConflict(), getLinearConsSides(), getLowerbound(), getMaxActivity(), getMinActivity(), getMinFeas(), getMinMaxActivityResiduals(), getObjectiveFactor(), getOptimalShiftingValue(), getPotentialContributed(), getTimeLeft(), getUpperbound(), getVarBoundsOfRow(), getVariable(), getVariableRedcostScore(), getVarUpperBoundOfRow(), heurExec(), initComponent(), initConshdlrData(), initLP(), initMatrix(), isUpperBoundImplied(), isValue(), isVarImpliedFree(), LOPseparate(), maximalslack(), mod2MatrixTransformContRows(), newsolCliqueAddRow(), nodepairqueueCreate(), nodepartitionIsConnected(), numericalStable(), parseType(), performStrongbranchWithPropagation(), polishSolution(), preprocessConstraintPairs(), presolveAddKKTKnapsackConss(), presolveAddKKTLinearCons(), presolveAddKKTLogicorConss(), presolveAddKKTSetppcConss(), presolveCreateBenTalNemirovskiApproxDim3(), presolveCreateGlineurApproxDim3(), presolveCreateOuterApprox(), presolveDisaggregate(), presolveDual(), presolveFindDuplicates(), presolveRemoveFixedVariables(), presolveTryAddLinearReform(), prettifyConss(), printAndCons(), propagateBounds(), propagateBoundsBilinearTerm(), propagateBoundsCons(), propagateBoundsGetQuadActivity(), propagateBoundsTightenVar(), propagateCons(), propagateVarbounds(), propdataInit(), propIndicator(), readBounds(), readCnf(), readCols(), readConstraints(), readIndicators(), readNonlinearExprs(), readObjective(), readOPBFile(), readQMatrix(), readQuadraticCoefs(), readRows(), readSol(), readSolFile(), readVariables(), readXmlSolFile(), reformMonomial(), registerBranchingCandidatesGap(), relaxVar(), replaceByLinearConstraints(), replaceViolatedByLinearConstraints(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCOPY(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DISPINITSOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTINIT(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_EXPRGRAPHVARADDED(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NODESELSELECT(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_READERWRITE(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddCoefLinear(), SCIPaddConflict(), SCIPaddToNlpiProblemSOC(), SCIPaggrRowCancelVarWithBound(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPchgLhsQuadratic(), SCIPchgRhsQuadratic(), SCIPcomputeConvexEnvelopeFacet(), SCIPcopyConss(), SCIPcreateConsIndicator(), SCIPcreateConsLinear(), SCIPcreateConsOrbitope(), SCIPcreateConsPseudoboolean(), SCIPcreateConsPseudobooleanWithConss(), SCIPcreateNlpiProb(), SCIPcutGenerationHeuristicCMIR(), SCIPevalExprtreeGlobalBounds(), SCIPevalExprtreeLocalBounds(), SCIPgetConcurrentGap(), SCIPgetFeasibilityQuadratic(), SCIPgetFirstLPLowerboundRoot(), SCIPgetRowprepRowCons(), SCIPgetRowprepRowSepa(), SCIPgetVarLbAtIndex(), SCIPgetVarStrongbranchWithPropagation(), SCIPgetVarUbAtIndex(), SCIPincludeBranchrulePscost(), SCIPincludeConshdlrAbspower(), SCIPincludeConshdlrBivariate(), SCIPincludeConshdlrNonlinear(), SCIPincludeConshdlrQuadratic(), SCIPincludeConshdlrSOC(), SCIPincludeHeurDualval(), SCIPincludeHeurIndicator(), SCIPincludeHeurMpec(), SCIPincludeHeurMultistart(), SCIPincludeHeurProximity(), SCIPincludeHeurSubNlp(), SCIPincludePropNlobbt(), SCIPincludeSepaEccuts(), SCIPmatrixCreate(), SCIPparseReal(), SCIPperformGenericDivingAlgorithm(), SCIPreadOpb(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPseparateCoversOrbisack(), SCIPsolveProbingRelax(), SCIPsyncstoreGetLastLowerbound(), SCIPsyncstoreGetLastUpperbound(), SCIPsyncstoreStartSync(), SCIPupdateNlpiProb(), SCIPwriteGms(), SCIPwriteLp(), SCIPwritePip(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), sepaImplBoundCutsSOS1(), separateCons(), separateCoverCutsCons(), separateCuts(), separateIndicators(), separatePerspective(), separatePoint(), separateSCIs(), separateSequLiftedExtendedWeightInequality(), separateSequLiftedMinimalCoverInequality(), separateSupLiftedMinimalCoverInequality(), sepaSubtour(), setupAndSolve(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupProblem(), setupSubScip(), solveComponent(), sortVariables(), splitOffLinearPart(), storeSolution(), tightenVarsBoundsSOS1(), transformColumn(), transformVariable(), tryUpgradingLogicor(), tryUpgradingSetppc(), updateActivities(), updateBestCandidate(), updateBounds(), updateRowActivities(), updateTransformation(), upgradeLinearSuperindicator(), writeFzn(), and writeOpbConstraints().

◆ SCIPgetHugeValue()

SCIP_Real SCIPgetHugeValue ( SCIP * scip )

returns the minimum value that is regarded as huge and should be handled separately (e.g., in activity computation)

Parameters

scip	SCIP data structure

Definition at line 47065 of file scip.c.

References SCIPsetGetHugeValue(), and Scip::set.

Referenced by computeRelaxedLowerbound(), computeRelaxedUpperbound(), and resolvePropagation().

◆ SCIPisEQ()

SCIP_Bool SCIPisEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if values are in range of epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 46963 of file scip.c.

References SCIPsetIsEQ(), and Scip::set.

Referenced by addAltLPColumn(), addAltLPConstraint(), addAltLPRow(), addCoefTerm(), addConcaveEstimatorBivariate(), addConcaveEstimatorUnivariate(), addConflictBounds(), addConflictReasonVars(), addIntervalGradientEstimator(), addLinearCoef(), addLinearization(), addLocalBranchingConstraint(), addOneRow(), addQuadVarTerm(), addSplitcons(), addVarbound(), adjustCutoffbound(), aggregateNextRow(), analyzeConflictLowerbound(), analyzeConflictUpperbound(), applyDomainChanges(), applyFixings(), buildMod2Matrix(), calcPscostQuot(), calculateAlternatives(), cancelRow(), catchEvent(), catchVarEvents(), checkCons(), checkConsnames(), checkFixedVariables(), checkIISlocal(), checkSolution(), checkSymmetriesAreSymmetries(), checkSystemGF2(), chgLhs(), chgRhs(), chooseCoefVar(), chooseDoubleVar(), chooseFracVar(), chooseGuidedVar(), collectCoefficients(), compareNodes(), componentSetupWorkingSol(), computeBilinEnvelope2(), computeCut(), computeImpliedEst(), computeImpliedLct(), computeRelaxedLowerbound(), computeRelaxedUpperbound(), computeSymmetryGroup(), computeViolation(), consdataCreate(), consdataFree(), consdataPrint(), constructCompression(), correctLocksAndCaptures(), createAndAddLinearCons(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createSubproblem(), createSubscip(), detectDominatingVlbs(), detectDominatingVubs(), detectParallelCols(), determineBoundForSNF(), displayRelevantStats(), dropEvent(), dualBoundStrengthening(), dualPresolve(), extractCapacityRows(), extractCycle(), extractFlowRows(), fillGraphByColoredCoefficients(), findAggregation(), findDominancePairs(), findFixings(), fixAlmostFixedX(), fixAndPropagate(), fixMatchingSolutionValues(), forbidFixation(), generate1ConvexIndefiniteUnderestimatorAtBoundary(), generateConvexConcaveUnderestimator(), generateCut(), generateCutNonConvex(), generateEstimatingHyperplane(), generateLinearizationCut(), generateOrthogonal_lx_ly_Underestimator(), generateOrthogonal_lx_uy_Underestimator(), generateUnderestimatorParallelYFacets(), getActivities(), getBinVarsRepresentatives(), getGenVBoundsMinActivityConflict(), getLinVarsAndAndRess(), getMultiaggVars(), getRandomVariable(), getReward(), getVariablePscostScore(), impliesVlbPrecedenceCondition(), improvePoint(), isCandidate(), isConvexLocal(), lifting(), nodeGetUctScore(), parseConstantArrayAssignment(), parseValue(), performBranching(), preprocessConstraintPairs(), presolRoundIndicator(), presolveDual(), presolveFindDuplicates(), presolveFindDuplicatesSolveEquations(), presolveFindDuplicatesUpgradeCons(), presolveSolve(), presolveTryAddLinearReform(), prettifyConss(), printActiveVariables(), printBoundSection(), printLinearCons(), printNonlinearCons(), printNonLinearCons(), printPseudobooleanCons(), printQuadraticCons(), printRangeSection(), printRowType(), printSignpowerCons(), propagateBoundsCons(), propagateCons(), propagateOrbitalFixing(), propagateRedcostVar(), propagateVbounds(), propIndicator(), readConstraints(), readRanges(), reformMonomial(), registerBranchingCandidatesCentrality(), registerBranchingVariables(), registerLargeRelaxValueVariableForBranching(), removeFixedVariables(), replaceByLinearConstraints(), replaceQuadVarTermPos(), replaceViolatedByLinearConstraints(), resolveGenVBoundPropagation(), resolvePropagation(), rowprepCleanupIntegralCoefs(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPRINT(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_HASHKEYEQ(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_READERWRITE(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SORTINDCOMP(), SCIPaddCoefPseudoboolean(), SCIPaddConstantQuadratic(), SCIPanalyzeDeductionsProbing(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPchgVarObjProbing(), SCIPcomputeBilinEnvelope2(), SCIPcomputeConvexEnvelopeFacet(), SCIPcreateConsAbspower(), SCIPcreateConsOrbitope(), SCIPcreateFiniteSolCopy(), SCIPcutGenerationHeuristicCMIR(), SCIPmatrixGetParallelCols(), SCIPmatrixGetParallelRows(), SCIPpropagateProbing(), SCIPresolveSolHeurSubNlp(), SCIPvalidateSolve(), SCIPwriteGms(), selectBranchVar(), selectShifting(), separateCuts(), setupAggregationData(), setupAndSolveSubscipRapidlearning(), solveComponent(), solveDerivativeEquation(), strengthenVarbounds(), tightenBounds(), tightenCoefs(), tightenVariables(), tightenVarsBoundsSOS1(), transformColumn(), transformNonIntegralRow(), tryUpgradingLogicor(), tryUpgradingXor(), updateBestCandidate(), updateFirstRow(), updateLogRegression(), updateObjUpperbound(), updateVariableRounding(), upgradeConss(), and writeFzn().

◆ SCIPisLT()

SCIP_Bool SCIPisLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than epsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 46976 of file scip.c.

References SCIPsetIsLT(), and Scip::set.

Referenced by addBilinearTermToCut(), addCoef(), addConflictBounds(), addLinearizationCuts(), addNodesInformation(), analyzeConflictUpperbound(), branch(), buildMod2Matrix(), calcPscostQuot(), checkLeavesBelowIncumbent(), chgLhs(), chgProbingBound(), chooseCoefVar(), chooseDoubleVar(), chooseFracVar(), chooseGuidedVar(), choosePscostVar(), chooseVeclenVar(), compareNodes(), compensateVarLock(), componentSetupWorkingSol(), computeSCTable(), createSubscip(), detectDominatingVlbs(), determineBestBounds(), determineBoundForSNF(), determineVariableFixings(), dualBoundStrengthening(), dualPresolve(), dualPresolving(), evaluateLiftingFunction(), execRelpscost(), findBestUb(), findComponents(), findDominancePairs(), fixNonNeighborhoodVariables(), generateCut(), generateCutLTIcomputeCoefs(), generateZerohalfCut(), getAlphaAndBeta(), getPartitionCovervars(), impliesVlbPrecedenceCondition(), mod2matrixPreprocessRows(), performDualfix(), performRandRounding(), performStrongbranchWithPropagation(), polishSolution(), predBndStr(), presolveDual(), prettifyConss(), processBinvarFixings(), propagateBoundsCons(), propagateCons(), propagateCutoffboundVar(), proposeBranchingPoint(), readBounds(), registerBranchingCandidates(), registerBranchingCandidatesGap(), releaseNodeFromDepthInfo(), resolveGenVBoundPropagation(), rowprepCleanupImproveCoefrange(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_SORTINDCOMP(), SCIPaddRow(), SCIPapplyProbingVar(), SCIPbranchVarVal(), SCIPbranchVarValNary(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPmakeSOS1sFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPshrinkDisjunctiveVarSet(), SCIPupdateDistributionScore(), separateCons(), singletonColumnStuffing(), solveAndEvalSubscip(), solveComponent(), tightenBounds(), tightenCoefs(), tightenVariables(), tightenVarUb(), transformNonIntegralRow(), updateBestCandidate(), and updateObjUpperbound().

◆ SCIPisLE()

SCIP_Bool SCIPisLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than epsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 46989 of file scip.c.

References SCIPsetIsLE(), and Scip::set.

Referenced by addBilinearTermToCut(), addConcaveEstimatorUnivariate(), addConstraint(), addNewLocks(), addSplitcons(), analyzeGenVBoundConflict(), applyProbingVar(), calcNewSidesAfterAggregation(), checkFixedVariables(), checkOrigPbCons(), checkSystemGF2(), chgLhs(), chgProbingBound(), chgRhs(), chooseDoubleVar(), compensateVarLock(), computeInteriorPoint(), consdataPrint(), correctLocksAndCaptures(), createConsFromMonomial(), createConsFromQuadTerm(), cutsRoundMIR(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), detectDominatingVubs(), determineBestBounds(), determineBoundForSNF(), determineVariableFixings(), dualPresolve(), evaluateGauge(), evaluateLiftingFunction(), filterCands(), filterPoints(), findBestUb(), findFixings(), findUplockAggregations(), fixNonNeighborhoodVariables(), generateConvexConcaveUnderestimator(), generateCutLTIcomputeCoefs(), generateEstimatingHyperplane(), generateSecantCut(), generateSecantCutNoCheck(), getAlphaAndBeta(), getFixingValue(), getGMIFromRow(), getLinVarsAndAndRess(), heurExec(), impliesVlbPrecedenceCondition(), initsepaBoundInequalityFromCardinality(), isOverlapping(), lockRoundingAndCons(), performDualfix(), performStrongbranchWithPropagation(), predBndStr(), presolveDual(), projectVbd(), propagateBounds(), propagateBoundsTightenVarLb(), propagateCons(), proposeBranchingPoint(), reformulate(), registerBranchingCandidatesGap(), registerBranchingCandidatesViolation(), removeOldLocks(), resolveGenVBoundPropagation(), sampleRandomPoints(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddBilinMcCormick(), SCIPaddSquareSecant(), SCIPanalyzeDeductionsProbing(), SCIPapplyProbingVar(), SCIPchgLhsQuadratic(), SCIPchgRhsQuadratic(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcreateConsSOC(), SCIPcutsTightenCoefficients(), SCIPprintSolutionStatistics(), SCIPseparateRelaxedKnapsack(), searchEcAggrWithMIP(), selectNextDiving(), separateCuts(), separatePoint(), setupAndSolveSubscipRapidlearning(), singletonColumnStuffing(), solveAndEvalSubscip(), solveComponent(), solveSubNLP(), tryUpgradingSetppc(), unlockRoundingAndCons(), updateBestCandidate(), upgradeConss(), and upgradeLinearSuperindicator().

◆ SCIPisGT()

SCIP_Bool SCIPisGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than epsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47002 of file scip.c.

References SCIPsetIsGT(), and Scip::set.

Referenced by addBilinearTermToCut(), addBranchingComplementaritiesSOS1(), addCoef(), addConflictBounds(), addGenVBound(), addLinearizationCuts(), addRelaxation(), aggregateNextRow(), analyzeConflictLowerbound(), applyNlobbt(), applyProbingVar(), calcPscostQuot(), checkPackingPartitioningOrbitopeSolution(), checkVarbound(), chgProbingBound(), chgRhs(), chooseCoefVar(), chooseDoubleVar(), chooseFracVar(), chooseGuidedVar(), choosePscostVar(), chooseVeclenVar(), compareNodes(), compensateVarLock(), computeLiftingData(), computeViolation(), computeViolations(), consdataCreate(), createSubscip(), cutsTransformMIR(), cutTightenCoefs(), cutTightenCoefsQuad(), detectDominatingVubs(), determineBestBounds(), determineBoundForSNF(), determineVariableFixings(), dualBoundStrengthening(), dualPresolve(), enfopsPackingPartitioningOrbitopeSolution(), enforceConstraint(), enforceViolatedFixedNonlinear(), evaluateLiftingFunction(), execRelpscost(), extractCycle(), findBestLb(), fixAlmostFixedX(), fixNonNeighborhoodVariables(), generateCut(), generateCutLTIcomputeCoefs(), generateCutSol(), generateLiftedFlowCoverCut(), generateSparseCut(), generateZerohalfCut(), getAlphaAndBeta(), getObjectiveFactor(), getOptimalShiftingValue(), getVarRank(), impliesVlbPrecedenceCondition(), improvePoint(), performRandRounding(), performStrongbranchWithPropagation(), polishSolution(), presolveDual(), presolveFindDuplicates(), printRangeSection(), printRowType(), processCut(), propagateBounds(), propagateBoundsCons(), propagateCons(), proposeBranchingPoint(), proposeFeasibleSolution(), readBounds(), registerBranchingCandidates(), registerBranchingCandidatesCentrality(), registerBranchingCandidatesGap(), registerBranchingCandidatesViolation(), registerBranchingVariables(), registerLargeRelaxValueVariableForBranching(), releaseNodeFromDepthInfo(), replaceByLinearConstraints(), replaceViolatedByLinearConstraints(), resolveGenVBoundPropagation(), rowprepCleanupImproveCoefrange(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SORTINDCOMP(), SCIPaddBilinearIneqQuadratic(), SCIPaddRow(), SCIPapplyProbingVar(), SCIPcopyConsLinear(), SCIPcutsTightenCoefficients(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPshrinkDisjunctiveVarSet(), SCIPupdateDistributionScore(), separateCons(), separatePerspective(), separatePoint(), separateSymresackCovers(), singletonColumnStuffing(), solveAndEvalSubscip(), storeAggrFromMIP(), tightenBounds(), tightenCoefs(), tightenVariables(), tightenVarLb(), transformNonIntegralRow(), updateBestCandidate(), and writeOpbConstraints().

◆ SCIPisGE()

SCIP_Bool SCIPisGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than epsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47015 of file scip.c.

References SCIPsetIsGE(), and Scip::set.

Referenced by addBilinearTermToCut(), addNodesInformation(), addSplitcons(), analyzeGenVBoundConflict(), applyProbingVar(), applyTightening(), checkFixedVariables(), checkSystemGF2(), checkVarbound(), chgProbingBound(), computeCut(), computeInteriorPoint(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), cutsTransformMIR(), cutTightenCoefsQuad(), detectDominatingVlbs(), dualPresolve(), dualPresolving(), evaluateGauge(), execRelpscost(), findBestLb(), findDominancePairs(), findDownlockAggregations(), findFixings(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternB(), generateConvexConcaveUnderestimator(), generateCutLTIcomputeCoefs(), generateCutNonConvex(), generateEstimatingHyperplane(), generateLiftedFlowCoverCut(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getFixingValue(), getPartitionCovervars(), identifySourcesTargets(), impliesVlbPrecedenceCondition(), isNlobbtApplicable(), isVlb(), isVub(), nodeGetUctScore(), performLPRandRounding(), performLPSimpleRounding(), performStrongbranchWithPropagation(), presolRoundIndicator(), presolveCreateBenTalNemirovskiApproxDim3(), presolveCreateGlineurApproxDim3(), presolveDual(), prettifyConss(), propagateBoundsTightenVarUb(), propagateCons(), propagateCutoffboundGlobally(), proposeBranchingPoint(), reformulate(), registerBranchingCandidatesGap(), registerBranchingCandidatesViolation(), resolveGenVBoundPropagation(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIPaddBilinMcCormick(), SCIPaddSquareSecant(), SCIPanalyzeDeductionsProbing(), SCIPapplyHeurDualval(), SCIPapplyProbingVar(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcreateConsSOC(), SCIPgetVarStrongbranchWithPropagation(), SCIPperformGenericDivingAlgorithm(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPsolveDiveLP(), SCIPupdateNodeLowerbound(), selectNextDiving(), selectVarMultAggrBranching(), separateCuts(), singletonColumnStuffing(), solveAndEvalSubscip(), solveComponent(), solveProbingLP(), updateBestCandidate(), updateDualBounds(), and upgradeLinearSuperindicator().

◆ SCIPisInfinity()

SCIP_Bool SCIPisInfinity	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is (positive) infinite

Parameters

scip	SCIP data structure
val	value to be compared against infinity

Definition at line 47039 of file scip.c.

References SCIPsetIsInfinity(), and Scip::set.

Referenced by addAltLPColumn(), addAltLPConstraint(), addAltLPRow(), addBilinearTermToCut(), addBranchingComplementaritiesSOS1(), addCoef(), addConcaveEstimatorBivariate(), addConcaveEstimatorMultivariate(), addConcaveEstimatorUnivariate(), addConstraint(), addCut(), addFacetToCut(), addGenVBound(), addIntervalGradientEstimator(), addLinearization(), addLinearizationCuts(), addLinearTermToCut(), addNewLocks(), addObjcut(), addOneRow(), addRow(), addVarbound(), aggregateNextRow(), aggregateVariables(), analyzeGenVBoundConflict(), applyBoundHeur(), applyDomainChanges(), applyFixings(), applyGenVBound(), applyHeur(), applyRepair(), applyTightening(), applyVboundsFixings(), buildMod2Matrix(), calcActivityBounds(), calcBranchScore(), calcColActivity(), calcColActResidual(), calcNewSidesAfterAggregation(), calcShiftVal(), calculateAlternatives(), calculateBounds(), calculateMinvalAndMaxval(), calcVarBoundsDominated(), calcVarBoundsDominating(), cancelRow(), catchLinearVarEvents(), catchVarEvents(), checkArraySizesGLS(), checkArraySizesHeur(), checkCands(), checkCons(), checkConsQuadraticProblem(), checkCurvature(), checkCurvatureEasy(), checkFixedVariables(), checkLogCriterion(), checkOptimalSolution(), checkOrigPbCons(), checkRedundancySide(), chgCoeffWithBound(), chgLhs(), chgQuadCoeffWithBound(), chgRhs(), choosePscostVar(), collectCoefficients(), compareNodes(), compensateVarLock(), computeBoundsX(), computeBoundsZ(), computeCut(), computeED(), computeGauge(), computeInteriorPoint(), computeLiftingData(), computeMaxViolation(), computeReferencePointGauge(), computeReferencePointProjection(), computeViolation(), consdataCheckNonbinvar(), consdataComputePseudoActivity(), consdataCreate(), consdataFindUnlockedLinearVar(), consdataFree(), consdataGetActivity(), consdataGetActivityResiduals(), consdataGetGlbActivityResiduals(), consdataIsResidualIntegral(), consdataPrint(), consdataRecomputeGlbMinactivity(), consdataRecomputeMaxactivity(), consdataRecomputeMaxActivityDelta(), consdataRecomputeMinactivity(), consdataUpdateLinearActivity(), consdataUpdateLinearActivityLbChange(), consdataUpdateLinearActivityUbChange(), constructSNFRelaxation(), correctLocksAndCaptures(), createAndAddLinearCons(), createCoveringProblem(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createKKTDualCons(), createLinking(), createNewSol(), createNLP(), createNormalizedKnapsack(), createRows(), createSubproblem(), createSubscip(), cutsRoundMIR(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutsTransformMIR(), cutsTransformStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), determineBestBounds(), determineBound(), determineBoundForSNF(), determineLimits(), determineVariableFixings(), displayRelevantStats(), doSeachEcAggr(), doSolveSubMIP(), dropLinearVarEvents(), dropVarEvents(), dualBoundStrengthening(), dualPresolve(), enforceConstraint(), enforceViolatedFixedNonlinear(), evalLhs(), evaluateCutNumerics(), evaluateGauge(), evaluateLiftingFunction(), extractCapacityRows(), extractFlowRows(), extractLinearValues(), filterCands(), filterExistingLP(), findAndStoreEcAggregations(), findDownlockAggregations(), findFixings(), findPointPosition(), findUplockAggregations(), fixAlmostFixedX(), fixNonNeighborhoodVariables(), fixVariable(), fixVariables(), generate1ConvexIndefiniteUnderestimator(), generate1ConvexIndefiniteUnderestimatorAtBoundary(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternA(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternB(), generateAverageNBRay(), generateAverageRay(), generateBoundInequalityFromSOS1Nodes(), generateClusterCuts(), generateConvexConcaveEstimator(), generateConvexConcaveUnderestimator(), generateCut(), generateCutFactorable(), generateCutFactorableDo(), generateCutLTI(), generateCutLTIcomputeCoefs(), generateCutLTIfindIntersection(), generateCutPoint(), generateCutProjectedPoint(), generateCutSol(), generateDisjCutSOS1(), generateEstimatingHyperplane(), generateLiftedFlowCoverCut(), generateLinearizationCut(), generateLinearizationCutProject(), generateOrthogonal_lx_ly_Underestimator(), generateOrthogonal_lx_uy_Underestimator(), generateOverestimatingHyperplaneCut(), generateRowCardinality(), generateRowSOS2(), generateSecantCut(), generateSecantCutNoCheck(), generateSparseCut(), generateUnderestimatorParallelYFacets(), generateZerohalfCut(), getActivities(), getActivityRelax(), getActivityResiduals(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getBoundConsFromVertices(), getBranchingPrioritiesSOS1(), getClosestVlb(), getClosestVub(), getCopyMemlimit(), getCopyTimelimit(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getGenVBoundsBound(), getGenVBoundsMinActivity(), getGenVBoundsMinActivityConflict(), getGMIFromRow(), getLinearCoeffs(), getLinVarsAndAndRess(), getMaxActivity(), getMaxActivitySingleRowWithoutCol(), getMaxActSingleRowWithoutCol(), getMaxResActivity(), getMinActivity(), getMinActivitySingleRowWithoutCol(), getMinActSingleRowWithoutCol(), getMinColActWithoutRow(), getMinMaxActivityResiduals(), getNumHugeActivities(), getObjectiveFactor(), getOptimalShiftingValue(), getPotential(), getPotentialContributed(), getRelDistance(), getReward(), getTimeLeft(), getVarBoundsOfRow(), getVariableRedcostScore(), getVarUpperBoundOfRow(), handleNewVariableCardinality(), handleNewVariableSOS1(), hasQuadvarHpProperty(), improvePoint(), infCntUpdate(), initMatrix(), initsepaBoundInequalityFromCardinality(), initSepaData(), invertCommodity(), isCandidate(), isConvexLocal(), isNlobbtApplicable(), isPossibleToComputeCut(), isRangedRow(), isUpperBoundImplied(), isVarImpliedFree(), isZero(), lifting(), lockLinearVariable(), lockRounding(), lockRoundingAndCons(), mod2MatrixTransformContRows(), modifyAndPackCut(), nodeGetSolvalBinaryBigMSOS1(), nodeGetUctScore(), nodepairqueueCreate(), numericalStable(), performDualfix(), performStrongbranchWithPropagation(), polishSolution(), predBndStr(), preprocessConstraintPairs(), presolve(), presolveAddKKTLinearCons(), presolveDisaggregate(), presolveDual(), presolveFindDuplicates(), presolveFindDuplicatesUpgradeCons(), presolveTryAddLinearReform(), prettifyConss(), printBounds(), printBoundSection(), printDualSol(), printIndicatorCons(), printLinearCons(), printNonlinearCons(), printNonLinearCons(), printPseudobooleanCons(), printQuadraticCons(), printRangeSection(), printRhsSection(), printRowType(), printSignpowerCons(), propagateBounds(), propagateBoundsBilinearTerm(), propagateBoundsCons(), propagateBoundsGetQuadActivity(), propagateBoundsQuadVar(), propagateBoundsTightenVar(), propagateBoundsTightenVarLb(), propagateBoundsTightenVarUb(), propagateCons(), propagateConstraintSides(), propagateCutoffboundGlobally(), propagateCutoffboundVar(), propagateLowerboundBinvar(), propagateLowerboundVar(), propagateVarbounds(), propIndicator(), proposeBranchingPoint(), proposeFeasibleSolution(), readBinaries(), readBounds(), readConstraints(), readIndicators(), readRanges(), readRhs(), reformulate(), registerBranchingCandidates(), registerBranchingCandidatesCentrality(), registerBranchingCandidatesGap(), relaxVar(), removeFixedLinearVariables(), removeFixedVariables(), removeOldLocks(), removeZeros(), removeZerosQuad(), replaceByLinearConstraints(), replaceQuadVarTermPos(), replaceViolatedByLinearConstraints(), resolvePropagation(), retransformVariable(), rowCalculateGauss(), rowprepCleanupImproveCoefrange(), rowprepCleanupIntegralCoefs(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPRINT(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_READERWRITE(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddBilinLinearization(), SCIPaddBilinMcCormick(), SCIPaddBilinTermQuadratic(), SCIPaddCoefLinear(), SCIPaddConstantQuadratic(), SCIPaddLinearVarNonlinear(), SCIPaddLinearVarQuadratic(), SCIPaddQuadVarLinearCoefQuadratic(), SCIPaddQuadVarQuadratic(), SCIPaddRow(), SCIPaddSquareCoefQuadratic(), SCIPaddSquareLinearization(), SCIPaddSquareSecant(), SCIPaddVarImplication(), SCIPaggrRowAddCustomCons(), SCIPaggrRowAddRow(), SCIPaggrRowCancelVarWithBound(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPbranchVarVal(), SCIPbranchVarValNary(), SCIPchgBilinCoefQuadratic(), SCIPchgLhsQuadratic(), SCIPchgRhsQuadratic(), SCIPchgSquareCoefQuadratic(), SCIPchgVarLb(), SCIPchgVarLbGlobal(), SCIPchgVarLbNode(), SCIPchgVarLbProbing(), SCIPchgVarObj(), SCIPchgVarObjProbing(), SCIPchgVarUb(), SCIPchgVarUbGlobal(), SCIPchgVarUbNode(), SCIPchgVarUbProbing(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcopyConsLinear(), SCIPcreateConsAbspower(), SCIPcreateConsBivariate(), SCIPcreateConsLinear(), SCIPcreateConsLinking(), SCIPcreateConsOrbitope(), SCIPcreateConsPseudoboolean(), SCIPcreateConsPseudobooleanWithConss(), SCIPcreateConsSOC(), SCIPcreateFiniteSolCopy(), SCIPcreateNlpiProb(), SCIPcreateVar(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPgenVBoundAdd(), SCIPgetFeasibilityQuadratic(), SCIPgetVarLbAtIndex(), SCIPgetVarUbAtIndex(), SCIPinferVarLbCons(), SCIPinferVarLbProp(), SCIPinferVarUbCons(), SCIPinferVarUbProp(), SCIPmakeIndicatorFeasible(), SCIPprintSolutionStatistics(), SCIPprintStage(), SCIProwCalcProbability(), SCIPseparateRelaxedKnapsack(), SCIPsolveKnapsackApproximatelyLT(), SCIPtightenVarLb(), SCIPtightenVarLbGlobal(), SCIPtightenVarUb(), SCIPtightenVarUbGlobal(), SCIPtransformProb(), SCIPvalidateSolve(), SCIPvarCalcDistributionParameters(), SCIPwriteGms(), SCIPwriteLp(), SCIPwritePip(), selectBranchVar(), selectShifting(), sepaImplBoundCutsSOS1(), separateCons(), separateCuts(), separatePerspective(), separatePoint(), setSubscipLimits(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipLocalbranching(), setupAndSolveSubscipMutation(), setupAndSolveSubscipRapidlearning(), setupSubScip(), singletonColumnStuffing(), solveComponent(), solveIndependentCons(), solveNlp(), solveSubproblem(), solveSubscip(), splitOffLinearPart(), storeAllBilinearTerms(), storeNonlinearConvexNlrows(), termIsConvex(), tightenBounds(), tightenCoefs(), tightenSides(), tightenVariables(), tightenVarsBoundsSOS1(), transformColumn(), transformNonIntegralRow(), transformValue(), transformVariable(), tryFixVar(), unlockLinearVariable(), unlockRounding(), unlockRoundingAndCons(), updateActivities(), updateBestCandidate(), updateDualBounds(), updateImplicationGraphSOS1(), updateObjUpperbound(), updateRowActivities(), updateSlacks(), updateTransformation(), updateWeightsTCliquegraph(), upgradeConss(), upgradeIndicatorSuperindicator(), upgradeLinearSuperindicator(), varProcessBoundChanges(), wrapperDins(), wrapperRins(), and writeFzn().

◆ SCIPisHugeValue()

SCIP_Bool SCIPisHugeValue	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is huge and should be handled separately (e.g., in activity computation)

Parameters

scip	SCIP data structure
val	value to be checked whether it is huge

Definition at line 47051 of file scip.c.

References SCIPsetIsHugeValue(), and Scip::set.

Referenced by checkCons(), consdataComputePseudoActivity(), consdataGetActivityResiduals(), consdataGetGlbActivityResiduals(), consdataRecomputeGlbMinactivity(), consdataRecomputeMaxactivity(), consdataRecomputeMinactivity(), getActivityRelax(), getNumHugeActivities(), improvePoint(), propagateBoundsTightenVarLb(), propagateBoundsTightenVarUb(), selectShifting(), separateCuts(), simplifyInequalities(), solveBilinearLP(), and updateBestCandidate().

◆ SCIPisZero()

SCIP_Bool SCIPisZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range epsilon of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47076 of file scip.c.

References SCIPsetIsZero(), and Scip::set.

Referenced by addAltLPColumn(), addAltLPConstraint(), addBilinearTerm(), addBilinearTermToCut(), addCoefTerm(), addConcaveEstimatorBivariate(), addConflictBounds(), addFacetToCut(), addFlowrowToCommodity(), addGenVBound(), addIntervalGradientEstimator(), addLinearCoef(), addLinearization(), addLinearTermToCut(), addObjcut(), addRow(), addVarbound(), adjustCutoffbound(), applyFixings(), applyRepair(), buildConvexCombination(), buildMod2Matrix(), calcActivityBounds(), calcEfficacyNormQuad(), calcVarBoundsDominated(), calcVarBoundsDominating(), cancelRow(), catchObjEvent(), checkFactorable(), checkFixedVariables(), checkSolution(), checkSymmetriesAreSymmetries(), chgLinearCoefPos(), collectMaxactVar(), collectMinactImplicVar(), collectMinactImplicVars(), collectMinactVar(), collectNonBinaryVBoundData(), componentSetupWorkingSol(), computeCut(), consdataCreate(), consdataFree(), correctLocksAndCaptures(), createAndAddAnds(), createAndAddLinearCons(), createConsFromMonomial(), createExprtreeFromMonomial(), createNewSol(), createNlRow(), createObjRow(), createSubscip(), createTcliqueGraph(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), determineBestBounds(), disaggregate(), dropObjEvent(), ecaggrAddBilinTerm(), enforceConflictgraph(), enforceViolatedFixedNonlinear(), evaluateGauge(), fillGlobalStartingData(), filterExistingLP(), fixVariableZero(), generateBoundInequalityFromSOS1Nodes(), generateCloseCutPoint(), generateClusterCuts(), generateCutFactorable(), generateCutFactorableDo(), generateCutLTIcomputeCoefs(), generateCutLTIfindIntersection(), generateCutLTIgenMulCoeff(), generateCutPoint(), generateCutProjectedPoint(), generateCutUnboundedLP(), generateEstimatingHyperplane(), generateRowCardinality(), getActiveVar(), getBinVarsRepresentatives(), getBoundConsFromVertices(), getGenVBound(), getGMIFromRow(), getMaxactImplicObjchg(), getMinactImplicObjchg(), getObjectiveFactor(), getPotential(), getPotentialContributed(), handleNewVariableCardinality(), handleNewVariableSOS1(), hasQuadvarHpProperty(), improvePoint(), lockRounding(), mergeAndCleanBilinearTerms(), mergeAndCleanLinearVars(), mergeAndCleanQuadVarTerms(), mod2MatrixAddOrigRow(), mod2MatrixAddTransRow(), mod2matrixPreprocessColumns(), mod2matrixRemoveRow(), mod2rowAddRow(), modifyAndPackCut(), nodepairqueueCreate(), objimplicsCreate(), optimize(), performDualfix(), performStrongbranchSOS1(), polishSolution(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundSOS2(), presolveCreateBenTalNemirovskiApproxDim3(), presolveCreateGlineurApproxDim3(), presolveCreateOuterApprox(), presolveDisaggregate(), presolveDual(), presolveFindDuplicates(), presolveRemoveFixedVariables(), presolveSolve(), presolveTryAddLinearReform(), presolveUpgrade(), printActiveVariables(), printBoundSection(), printDualSol(), printLinearRow(), printNLRow(), printNonlinearRow(), printPBRow(), printQuadraticRow(), printRow(), printRowNl(), printSignpowerRow(), printSOCCons(), propagateCons(), propagateCutoffboundBinvar(), propagateCutoffboundGlobally(), propagateCutoffboundVar(), propagateLowerboundVar(), propagateVarbounds(), propIndicator(), proposeFeasibleSolution(), readBounds(), readCoefficients(), readCols(), readOPBFile(), readRhs(), replaceByLinearConstraints(), replaceViolatedByLinearConstraints(), resolvePropagation(), rowprepCleanupSide(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_READERREAD(), SCIP_DECL_READERWRITE(), SCIPaddCoefPseudoboolean(), SCIPaddQuadVarLinearCoefQuadratic(), SCIPaddRow(), SCIPaddSquareCoefQuadratic(), SCIPaddVarVlb(), SCIPaddVarVub(), SCIPaggrRowAddObjectiveFunction(), SCIPanalyzeDeductionsProbing(), SCIPapplyProximity(), SCIPchgBilinCoefQuadratic(), SCIPchgCoefLinear(), SCIPchgLinearCoefQuadratic(), SCIPchgReoptObjective(), SCIPchgSquareCoefQuadratic(), SCIPcomputeBilinEnvelope1(), SCIPcreateConsAbspower(), SCIPcreateConsIndicator(), SCIPcreateConsNonlinear(), SCIPcreateConsNonlinear2(), SCIPcreateConsOrbitope(), SCIPcreateConsQuadratic(), SCIPcreateNlpiProb(), SCIPgetVectorEfficacyNorm(), SCIPisObjIntegral(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPwriteGms(), SCIPwriteLp(), SCIPwritePip(), selectShifting(), setupAggregationData(), setupSubproblem(), solCutIsViolated(), solveDerivativeEquation(), solveSubNLP(), storeCutInArrays(), termIsConstant(), tightenCoefs(), tightenVarsBoundsSOS1(), transformColumn(), transformNonIntegralRow(), tryUpgradingXor(), updateBilinearRelaxation(), updateSlacks(), upgradeConss(), writeFzn(), and writeOpbObjective().

◆ SCIPisPositive()

SCIP_Bool SCIPisPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47088 of file scip.c.

References SCIPsetIsPositive(), and Scip::set.

Referenced by addBilinearTermToCut(), addCoefTerm(), addConflictBinvar(), addLinearizationCuts(), applyAlternativeBoundsBranching(), checkCurvature(), checkCurvatureEasy(), checkFactorable(), checkRedundancySide(), chgLhs(), chgRhs(), collectMaxactVar(), createAndAddLinearCons(), createCGCutDirect(), createMIP(), createNlRow(), cutsSubstituteStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), determineBound(), dfs(), dualPresolve(), evaluateGauge(), extractCapacityRows(), extractFlowRows(), findFixings(), fixVariableZero(), generate1ConvexIndefiniteUnderestimator(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternA(), generate1ConvexIndefiniteUnderestimatorInTheInteriorPatternB(), generateBoundInequalityFromSOS1Nodes(), generateClusterCuts(), generateConvexConcaveEstimator(), generateCut(), generateCutProjectedPoint(), generateCutSol(), generateCutUnboundedLP(), generateRowCardinality(), generateSecantCut(), generateSecantCutNoCheck(), generateSparseCut(), getBranchingDecisionStrongbranchSOS1(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), initData(), isCandidate(), lockRoundingAndCons(), nodepairqueueCreate(), performDualfix(), predBndStr(), preprocessConstraintPairs(), presolveCreateBenTalNemirovskiApproxDim3(), presolveCreateGlineurApproxDim3(), presolveCreateOuterApprox(), presolveTryAddLinearReform(), printSignpowerRow(), propagateCons(), propagateLowerboundBinvar(), propIndicator(), proposeFeasibleSolution(), resolveGenVBoundPropagation(), resolvePropagation(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_QUADCONSUPGD(), SCIP_DECL_SEPAEXECLP(), SCIPaddCoefPseudoboolean(), SCIPapplyLockFixings(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPchgReoptObjective(), SCIPcutsTightenCoefficients(), SCIPgenVBoundAdd(), SCIPupdateStartpointHeurSubNlp(), SCIPwritePip(), searchEcAggrWithCliques(), selectInitialVariable(), selectShifting(), separateCuts(), separatePerspective(), separatePoint(), setupAndSolveSubscipRapidlearning(), setUpEvents(), solveAndEvalSubscip(), sortGenVBounds(), storeAllBilinearTerms(), unlockRoundingAndCons(), upgradeLinearSuperindicator(), varMayRoundDown(), and varMayRoundUp().

◆ SCIPisNegative()

SCIP_Bool SCIPisNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47100 of file scip.c.

References SCIPsetIsNegative(), and Scip::set.

Referenced by addConcaveEstimatorBivariate(), addConflictBinvar(), adjustCutoffbound(), applyAlternativeBoundsBranching(), calcBranchScore(), checkCurvature(), checkCurvatureEasy(), checkFactorable(), checkLogCriterion(), collectMinactVar(), computeCut(), copySofttimelimit(), createMIP(), createNlRow(), createVarUbs(), cutTightenCoefs(), cutTightenCoefsQuad(), determineBestBounds(), determineBound(), dualPresolve(), dualPresolving(), evaluateGauge(), extractCapacityRows(), extractNodes(), fillGlobalStartingData(), findFixings(), fixVariableZero(), generateBoundInequalityFromSOS1Nodes(), generateClusterCuts(), generateCut(), generateCutProjectedPoint(), generateCutUnboundedLP(), generateDisjCutSOS1(), generateEstimatingHyperplane(), generateRowCardinality(), isCandidate(), isRangedRow(), nlrowaggrCreate(), nodepairqueueCreate(), objimplicsCreate(), performDualfix(), predBndStr(), preprocessConstraintPairs(), presolveCreateOuterApprox(), presolveRemoveFixedVariables(), presolveTryAddLinearReform(), printSignpowerRow(), propagateCons(), propagateCutoffboundBinvar(), proposeFeasibleSolution(), registerBranchingCandidatesGap(), removeDoubleAndSingletonsAndPerformDualpresolve(), SCIP_DECL_CONSINITLP(), SCIP_DECL_EVENTINIT(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_HEUREXEC(), SCIP_DECL_QUADCONSUPGD(), SCIPcalcCumulativeDistribution(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcutsTightenCoefficients(), SCIPgenVBoundAdd(), SCIPgetReadingTime(), SCIPvarCalcDistributionParameters(), SCIPwritePip(), searchEcAggrWithCliques(), selectShifting(), separatePerspective(), separatePoint(), setupAndSolveSubscipRapidlearning(), solveAndEvalSubscip(), sortGenVBounds(), storeAllBilinearTerms(), transformColumn(), updateBestCandidate(), upgradeLinearSuperindicator(), varMayRoundDown(), and varMayRoundUp().

◆ SCIPisIntegral()

SCIP_Bool SCIPisIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is integral within epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47112 of file scip.c.

References SCIPsetIsIntegral(), and Scip::set.

Referenced by addCoefTerm(), aggregateVariables(), applyFixings(), buildFlowCover(), calcBranchScore(), cancelRow(), checkCons(), computeCut(), consdataCheckSuperindicator(), createAndAddLinearCons(), createNlRow(), enfopsPackingPartitioningOrbitopeSolution(), fixAndPropagate(), flattenFloat(), getFlowCover(), isRangedRow(), parseRange(), presolveTryAddLinearReform(), presolveUpgrade(), prettifyConss(), printLinearCons(), printNLRow(), printPBRow(), printRow(), printSignpowerRow(), printValue(), propIndicator(), readCoefficients(), readExpression(), readIndicators(), readOPBFile(), readPolynomial(), reformMonomial(), reformulate(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIPaddCoefPseudoboolean(), SCIPaddSquareLinearization(), SCIPaddVarIndicator(), SCIPcreateConsIndicator(), SCIPisObjIntegral(), SCIPwritePip(), tightenBounds(), tightenCoefs(), tightenSides(), tightenVariables(), updateBestCandidate(), updateVariableRounding(), writeExpandedSolutions(), writeFzn(), and writeOpbObjective().

◆ SCIPisScalingIntegral()

SCIP_Bool SCIPisScalingIntegral	(	SCIP *	scip,
		SCIP_Real	val,
		SCIP_Real	scalar
	)

checks whether the product val * scalar is integral in epsilon scaled by scalar

Parameters

scip	SCIP data structure
val	unscaled value to check for scaled integrality
scalar	value to scale val with for checking for integrality

Definition at line 47124 of file scip.c.

References SCIPsetIsScalingIntegral(), and Scip::set.

◆ SCIPisFracIntegral()

SCIP_Bool SCIPisFracIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if given fractional part is smaller than epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47137 of file scip.c.

References SCIPsetIsFracIntegral(), and Scip::set.

◆ SCIPfloor()

SCIP_Real SCIPfloor	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value + epsilon down to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47149 of file scip.c.

References SCIPsetFloor(), and Scip::set.

Referenced by addOneRow(), branchBalancedCardinality(), calcColorValue(), checkCands(), computeFixingrate(), computeMIREfficacy(), createSubSCIP(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), DECL_CHANGESUBSCIP(), enforceConflictgraph(), enforceConssSOS1(), fixDiscreteVars(), fixVariable(), generateClusterCuts(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), getCoef(), handleCycle(), performDualfix(), polishSolution(), predBndStr(), printSignpowerRow(), proposeFeasibleSolution(), readOPBFile(), readVariables(), restrictToBinaryBounds(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIPaddSquareLinearization(), SCIPaggrRowAddRow(), SCIPanalyzeDeductionsProbing(), SCIPapplyHeurSubNlp(), SCIPseparateRelaxedKnapsack(), SCIPwriteGms(), selectNextDiving(), setupSubScip(), tightenVariables(), tightenVarsBoundsSOS1(), tryAdd2variableBuffer(), and updateArcData().

◆ SCIPceil()

SCIP_Real SCIPceil	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value - epsilon up to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47161 of file scip.c.

References SCIPsetCeil(), and Scip::set.

Referenced by addOneRow(), checkCands(), createObjRow(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), findUncapacitatedArcs(), fixVariable(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), handleCycle(), performDualfix(), polishSolution(), predBndStr(), proposeFeasibleSolution(), readVariables(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaggrRowAddRow(), SCIPanalyzeDeductionsProbing(), SCIPcreateConsIndicator(), SCIPperformGenericDivingAlgorithm(), SCIPwriteGms(), selectNextDiving(), separateCuts(), separateGLS(), separateHeur(), tightenVariables(), tightenVarsBoundsSOS1(), and updateArcData().

◆ SCIPround()

SCIP_Real SCIPround	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value to the nearest integer with epsilon tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47173 of file scip.c.

References SCIPsetRound(), and Scip::set.

Referenced by applyFixings(), createNlRow(), cutTightenCoefs(), cutTightenCoefsQuad(), flattenFloat(), mod2(), presolveTryAddLinearReform(), printExpr(), printNLRow(), printPBRow(), printRow(), readExpression(), reformMonomial(), reformulate(), rowprepCleanupIntegralCoefs(), SCIP_DECL_EXPRGRAPHNODEREFORM(), SCIP_DECL_NONLINCONSUPGD(), SCIPcalcStrongCG(), SCIPresolveSolHeurSubNlp(), SCIPwritePip(), solveNLP(), and writeOpbObjective().

◆ SCIPfrac()

SCIP_Real SCIPfrac	(	SCIP *	scip,
		SCIP_Real	val
	)

returns fractional part of value, i.e. x - floor(x) in epsilon tolerance

Parameters

scip	SCIP data structure
val	value to return fractional part for

Definition at line 47185 of file scip.c.

References SCIPsetFrac(), and Scip::set.

Referenced by changeSubvariableObjective(), computeCut(), createCGCutCMIR(), createCGCutStrongCG(), cutsTransformMIR(), generateClusterCuts(), getGMIFromRow(), and SCIP_DECL_BRANCHEXECLP().

◆ SCIPisSumEQ()

SCIP_Bool SCIPisSumEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if values are in range of sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47197 of file scip.c.

References SCIPsetIsSumEQ(), and Scip::set.

Referenced by SCIP_DECL_BRANCHEXECLP(), separateSCIs(), transformNonIntegralRow(), and updateBestCandidate().

◆ SCIPisSumLT()

SCIP_Bool SCIPisSumLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than sumepsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47210 of file scip.c.

References SCIPsetIsSumLT(), and Scip::set.

Referenced by proposeFeasibleSolution(), solveComponent(), and transformNonIntegralRow().

◆ SCIPisSumLE()

SCIP_Bool SCIPisSumLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than sumepsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47223 of file scip.c.

References SCIPsetIsSumLE(), and Scip::set.

Referenced by getAlphaAndBeta().

◆ SCIPisSumGT()

SCIP_Bool SCIPisSumGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than sumepsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47236 of file scip.c.

References SCIPsetIsSumGT(), and Scip::set.

Referenced by constructCompression(), execRelpscost(), SCIP_DECL_BRANCHEXECLP(), transformNonIntegralRow(), and updateBestCandidate().

◆ SCIPisSumGE()

SCIP_Bool SCIPisSumGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than sumepsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47249 of file scip.c.

References SCIPsetIsSumGE(), and Scip::set.

Referenced by execRelpscost().

◆ SCIPisSumZero()

SCIP_Bool SCIPisSumZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range sumepsilon of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47262 of file scip.c.

References SCIPsetIsSumZero(), and Scip::set.

Referenced by computeCut().

◆ SCIPisSumPositive()

SCIP_Bool SCIPisSumPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than sumepsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47274 of file scip.c.

References SCIPsetIsSumPositive(), and Scip::set.

Referenced by calcBranchScore(), computeCut(), and createCGCutCMIR().

◆ SCIPisSumNegative()

SCIP_Bool SCIPisSumNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -sumepsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47286 of file scip.c.

References SCIPsetIsSumNegative(), and Scip::set.

◆ SCIPisFeasEQ()

SCIP_Bool SCIPisFeasEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47298 of file scip.c.

References SCIPsetIsFeasEQ(), and Scip::set.

Referenced by addFacetToCut(), addLinearTermToCut(), addLocalBranchingConstraint(), applyFixings(), applyNlobbt(), applyRepair(), branchUnbalancedCardinality(), calculateAlternatives(), checkAndConss(), checkCons(), checkConsQuadraticProblem(), checkFixedVariables(), checkRikun(), chooseDoubleVar(), collectNonBinaryImplicationData(), collectNonBinaryVBoundData(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), computeRanks(), consdataCheckNonbinvar(), consdataCheckSuperindicator(), constructCompression(), createAndAddAndCons(), createCGCutDirect(), createConflict(), createCoveringProblem(), createIndicatorConstraint(), createRows(), createSelectedSortedEventpointsSol(), createSubSCIP(), createSubscip(), CUTOFF_CONSTRAINT(), deleteVarCardinality(), determineBound(), determineFixings(), determineVariableFixings(), doSolveSubMIP(), enforceCardinality(), enforceConstraint(), filterExistingLP(), findPointPosition(), fixAndPropagate(), fixVariables(), generate1ConvexIndefiniteUnderestimator(), generate1ConvexIndefiniteUnderestimatorAtBoundary(), generateAverageNBRay(), generateBoundInequalityFromSOS1Nodes(), generateConvexConcaveUnderestimator(), generateCutProjectedPoint(), generateEstimatingHyperplane(), generateNeighborFacets(), generateRowCardinality(), generateZerohalfCut(), getCover(), getNActiveConsScore(), getPartitionNoncovervars(), GUBsetCalcCliquePartition(), handleNewVariableCardinality(), heurExec(), initProblem(), isPossibleToComputeCut(), LOPseparate(), optimize(), performDualfix(), performRandRounding(), phi(), presolRoundCardinality(), presolveAddKKTAggregatedVars(), presolveAddKKTLinearCons(), presolveAddKKTLinearConss(), presolveAddKKTVarboundConss(), presolveFindDuplicatesSolveEquations(), printBoundSection(), processBinvarFixings(), processFixings(), processWatchedVars(), propagateCons(), propagateCutoffboundVar(), propagateRedcostBinvar(), propagateRedcostVar(), propCardinality(), readBinaries(), readBounds(), reboundIntegerVariables(), registerBranchingCandidates(), resolvePropagationCoretimes(), restrictToBinaryBounds(), rowFindSlackVar(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIPaddBilinearIneqQuadratic(), SCIPaddVarImplication(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPconvertRealToInt(), SCIPconvertRealToLongint(), SCIPdummyDebugMethodForSun(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIProwCalcProbability(), SCIPwriteGms(), SCIPwriteLp(), separateCons(), separateCuts(), separateIISRounding(), sequentialUpAndDownLifting(), sequentialUpAndDownLiftingGUB(), setAltLPObj(), setObjective(), solveAndEvalSubscip(), solveBilinearLP(), solveDerivativeEquation(), termIsConstant(), transformValue(), updateSlacks(), varIsFixed(), and varProcessBoundChanges().

◆ SCIPisFeasLT()

SCIP_Bool SCIPisFeasLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference val1 and val2 is lower than feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47311 of file scip.c.

References SCIPsetIsFeasLT(), and Scip::set.

Referenced by analyzeGenVBoundConflict(), applyFixings(), applyRepair(), branchBalancedCardinality(), calcBranchScore(), calculateBounds(), checkCons(), checkFixedVariables(), checkKnapsack(), checkOrigPbCons(), checkRowViolation(), checkViolations(), collectNonBinaryVBoundData(), computeCut(), computeVarsCoverSOS1(), countSparseSol(), createCGCutCMIR(), createCGCutStrongCG(), createSubscip(), determineBound(), enforceViolatedFixedNonlinear(), execGenVBounds(), filterPoints(), findPointPosition(), getBoundConsFromVertices(), getCover(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getMaxactImplicObjchg(), getOptimalShiftingValue(), handleNewVariableSOS2(), improvePoint(), optimize(), performImplicationGraphAnalysis(), performStrongbranchSOS1(), preprocessConstraintPairs(), propagateCons(), propagateCutoffboundBinvar(), propagateLowerboundBinvar(), propagateLowerboundVar(), propagateRedcostVar(), proposeFeasibleSolution(), propVariableNonzero(), SCIP_DECL_CONSCHECK(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SORTPTRCOMP(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPperformGenericDivingAlgorithm(), SCIPseparateRelaxedKnapsack(), SCIPsolveKnapsackApproximatelyLT(), sepaImplBoundCutsSOS1(), separateIISRounding(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscipRapidlearning(), tightenCoefs(), tightenVarsBoundsSOS1(), tryFixVar(), updateArcData(), updateImplicationGraphSOS1(), updateViolations(), and upgradeCons().

◆ SCIPisFeasLE()

SCIP_Bool SCIPisFeasLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47324 of file scip.c.

References SCIPsetIsFeasLE(), and Scip::set.

Referenced by addConcaveEstimatorBivariate(), addConcaveEstimatorMultivariate(), addConflictBounds(), applyRepair(), branchruledataUpdateCurrentBounds(), buildFlowCover(), calcShiftVal(), checkBounddisjunction(), checkCons(), checkConstraintMatching(), checkRowViolation(), checkViolations(), collectNonBinaryImplicationData(), computeReferencePointGauge(), computeViolation(), constructSNFRelaxation(), createSubscip(), cutTightenCoefs(), cutTightenCoefsQuad(), determineBound(), evaluateLiftingFunction(), filterCands(), filterExistingLP(), findDominancePairs(), generateConvexConcaveUnderestimator(), generateCut(), generateCutFactorableDo(), generateCutLTIcomputeCoefs(), generateDisjCutSOS1(), generateEstimatingHyperplane(), generateNeighborFacets(), generateOrthogonal_lx_ly_Underestimator(), generateUnderestimatorParallelYFacets(), getFeasibleSet(), getFlowCover(), getOptimalShiftingValue(), heurdataUpdateCurrentBounds(), heurExec(), isConsRedundant(), isUpperBoundImplied(), isVarImpliedFree(), optimize(), performRandRounding(), presolveDual(), presolveRemoveFixedVariables(), propagateCons(), propagateRootRedcostVar(), registerBranchingCandidates(), replaceViolatedByLinearConstraints(), rowCalculateGauss(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIPaddBilinearIneqQuadratic(), SCIPapplyHeurDualval(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPcalcCumulativeDistribution(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcutsTightenCoefficients(), SCIPperformGenericDivingAlgorithm(), SCIProwCalcProbability(), SCIPupdateDistributionScore(), separateCuts(), setObjective(), setupAndSolveSubscipRapidlearning(), shiftValues(), solveAndEvalSubscip(), tightenBounds(), tightenCoefs(), transformVariable(), tryToInsert(), updateBestCandidate(), updateBilinearRelaxation(), updateSlacks(), updateTransformation(), and updateVariableRounding().

◆ SCIPisFeasGT()

SCIP_Bool SCIPisFeasGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than feastol

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47337 of file scip.c.

References SCIPsetIsFeasGT(), and Scip::set.

Referenced by addGenVBound(), analyzeGenVBoundConflict(), applyFixings(), applyRepair(), buildFlowCover(), checkFixedVariables(), checkOrigPbCons(), checkRowViolation(), checkViolations(), collectNonBinaryVBoundData(), computeCut(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createSubscip(), determineBound(), enforceCardinality(), enforceViolatedFixedNonlinear(), findPointPosition(), generateClusterCuts(), generateNeighborFacets(), getCover(), getFlowCover(), getMaxactImplicObjchg(), getOptimalShiftingValue(), getPartitionCovervars(), getPartitionNoncovervars(), handleNewVariableSOS2(), initMatrix(), makeSOS1constraintsFeasible(), optimize(), performImplicationGraphAnalysis(), performStrongbranchSOS1(), propagateCons(), propagateLowerboundVar(), proposeFeasibleSolution(), propVariableNonzero(), relaxVar(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SORTPTRCOMP(), SCIPapplyLockFixings(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPperformGenericDivingAlgorithm(), SCIPseparateRelaxedKnapsack(), SCIPsolveKnapsackApproximately(), sepaImplBoundCutsSOS1(), separateCons(), separateSupLiftedMinimalCoverInequality(), sequentialUpAndDownLifting(), setupAndSolveFiniteSolSubscip(), shiftValues(), tightenCoefs(), tightenVarsBoundsSOS1(), tryFixVar(), tryToInsert(), updateArcData(), updateImplicationGraphSOS1(), updateViolations(), and upgradeCons().

◆ SCIPisFeasGE()

SCIP_Bool SCIPisFeasGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -feastol

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47350 of file scip.c.

References SCIPsetIsFeasGE(), and Scip::set.

Referenced by addConcaveEstimatorBivariate(), addConcaveEstimatorMultivariate(), addConflictBounds(), buildFlowCover(), calcShiftVal(), checkBounddisjunction(), checkCons(), checkRowViolation(), checkViolations(), collectNonBinaryImplicationData(), computeViolation(), constructSNFRelaxation(), determineBound(), dfs(), filterCands(), filterExistingLP(), filterPoints(), findDominancePairs(), forbidCover(), generateConvexConcaveUnderestimator(), generateCut(), generateCutLTIcomputeCoefs(), generateNeighborFacets(), generateOrthogonal_lx_ly_Underestimator(), generateUnderestimatorParallelYFacets(), getFeasibleSet(), getFlowCover(), improvePoint(), optimize(), performRandRounding(), presolveDual(), propagateCons(), propagateRootRedcostVar(), propIndicator(), registerBranchingCandidates(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIProwCalcProbability(), SCIPsolveKnapsackApproximatelyLT(), SCIPupdateDistributionScore(), separateCuts(), separateSupLiftedMinimalCoverInequality(), setObjective(), shiftValues(), solveAndEvalSubscip(), tightenBounds(), tightenCoefs(), tryToInsert(), updateBestCandidate(), updateBilinearRelaxation(), updateSlacks(), and varProcessBoundChanges().

◆ SCIPisFeasZero()

SCIP_Bool SCIPisFeasZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range feasibility tolerance of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47363 of file scip.c.

References SCIPsetIsFeasZero(), and Scip::set.

Referenced by addAltLPColumn(), addBranchingComplementaritiesSOS1(), addGenVBound(), addOneRow(), aggregateNextRow(), applyRepair(), branchBalancedCardinality(), branchUnbalancedCardinality(), buildFlowCover(), calculateAlternatives(), checkAndConss(), checkCons(), checkConsQuadraticProblem(), checkIISlocal(), checkLinearConssVarboundSOS1(), checkLPBoundsClean(), checkOrigPbCons(), checkPackingPartitioningOrbitopeSolution(), checkSwitchNonoverlappingSOS1Methods(), computeInteriorPoint(), computeMIREfficacy(), createAndAddAndCons(), createConflict(), createKKTComplementarityBounds(), detectVarboundSOS1(), determineBound(), enforceCardinality(), enforceConflictgraph(), enforceConssSOS1(), enforceCuts(), enforceIndicators(), enforceSOS2(), extendToCover(), fixVariableZeroNode(), generateAverageNBRay(), generateAverageRay(), generateClusterCuts(), generateDisjCutSOS1(), generateRowSOS2(), getBranchingPrioritiesSOS1(), getBranchingVerticesSOS1(), getDiveBdChgsSOS1constraints(), getFlowCover(), getGMIFromRow(), getSimplexCoefficients(), getVectorOfWeights(), initConflictgraph(), initMatrix(), isViolatedSOS1(), isZero(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), markNeighborsMWISHeuristic(), polishPrimalSolution(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundIndicator(), presolRoundSOS2(), presolveAddKKTAggregatedVars(), presolveAddKKTQuadBilinearTerms(), presolveAddKKTQuadLinearTerms(), presolveAddKKTQuadQuadraticTerms(), printBoundSection(), processBinvarFixings(), processFixings(), propagateVarbounds(), propCardinality(), propIndicator(), propVariableNonzero(), readBinaries(), registerBranchingVariables(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_SEPAEXECLP(), SCIPaddBilinearIneqQuadratic(), SCIPaddVarImplication(), SCIPapplyProximity(), SCIPcalcCumulativeDistribution(), SCIPdummyDebugMethodForSun(), SCIPinitVarBranchStats(), SCIPinitVarValueBranchStats(), SCIPmakeIndicatorFeasible(), SCIPprintSolutionStatistics(), SCIPselectVarStrongBranching(), sepaImplBoundCutsSOS1(), separateCuts(), separateIISRounding(), setObjective(), setupAndSolveSubscip(), setupSubScip(), solveBilinearLP(), tightenVarsBoundsSOS1(), transformVariable(), tryFixVar(), updateImplicationGraphSOS1(), updateTransformation(), and updateWeightsTCliquegraph().

◆ SCIPisFeasPositive()

SCIP_Bool SCIPisFeasPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47375 of file scip.c.

References SCIPsetIsFeasPositive(), and Scip::set.

Referenced by addBranchingComplementaritiesSOS1(), branchBalancedCardinality(), branchUnbalancedCardinality(), checkCons(), checkConsQuadraticProblem(), computeCut(), consdataCreate(), createCGCutCMIR(), createCGCutStrongCG(), detectVarboundSOS1(), enforceCardinality(), extractCycle(), fixVariableZeroNode(), generateAverageNBRay(), generateBoundInequalityFromSOS1Cons(), generateClusterCuts(), generateCutFactorable(), generateCutLTI(), generateDisjCutSOS1(), generateLinearizationCutProject(), generateNeighborFacets(), generateSecantCut(), getBoundConsFromVertices(), getCover(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getNActiveConsScore(), getSOS1Implications(), getVariableRedcostScore(), getVectorOfWeights(), handleNewVariableSOS1(), handleNewVariableSOS2(), inferVariableZero(), initMatrix(), lockVariableCardinality(), lockVariableSOS2(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), nodeGetSolvalBinaryBigMSOS1(), nodepartitionIsConnected(), performImplicationGraphAnalysis(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundIndicator(), presolRoundSOS2(), propCardinality(), propConsSOS1(), propIndicator(), proposeBranchingPoint(), propSOS2(), propVariableNonzero(), relaxVar(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPisViolatedIndicator(), SCIPmakeIndicatorFeasible(), tightenVarsBoundsSOS1(), unlockVariableCardinality(), unlockVariableSOS2(), updateImplicationGraphSOS1(), and updateWeightsTCliquegraph().

◆ SCIPisFeasNegative()

SCIP_Bool SCIPisFeasNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47387 of file scip.c.

References SCIPsetIsFeasNegative(), and Scip::set.

Referenced by addBranchingComplementaritiesSOS1(), branchBalancedCardinality(), branchUnbalancedCardinality(), checkConsQuadraticProblem(), computeCut(), computeInteriorPoint(), createCGCutCMIR(), createCGCutStrongCG(), detectVarboundSOS1(), enforceCardinality(), enforceIndicators(), extendToCover(), extractCycle(), fixVariableZeroNode(), generateAverageNBRay(), generateBoundInequalityFromSOS1Cons(), generateCutFactorable(), generateCutLTI(), generateLinearizationCut(), generateLinearizationCutProject(), getBoundConsFromVertices(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getNActiveConsScore(), getSOS1Implications(), getVariableRedcostScore(), handleNewVariableSOS1(), handleNewVariableSOS2(), inferVariableZero(), initMatrix(), lockVariableCardinality(), lockVariableSOS2(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), nodeGetSolvalBinaryBigMSOS1(), performImplicationGraphAnalysis(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundSOS2(), propCardinality(), propConsSOS1(), proposeBranchingPoint(), propSOS2(), propVariableNonzero(), registerBranchingCandidatesGap(), relaxVar(), rowCalculateGauss(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSTRANS(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPmakeIndicatorFeasible(), sepaImplBoundCutsSOS1(), separateCons(), separateConsBinaryRepresentation(), separateCoverCutsCons(), separateIndicators(), tightenVarsBoundsSOS1(), unlockVariableCardinality(), unlockVariableSOS2(), updateImplicationGraphSOS1(), updateSlacks(), and updateWeightsTCliquegraph().

◆ SCIPisFeasIntegral()

SCIP_Bool SCIPisFeasIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is integral within the LP feasibility bounds

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47399 of file scip.c.

References SCIPsetIsFeasIntegral(), and Scip::set.

Referenced by addGLSCliques(), addLocalBranchingConstraint(), addNextLevelCliques(), buildFlowCover(), checkCands(), checkCons(), checkCumulativeCondition(), checkPackingPartitioningOrbitopeSolution(), checkRedundancySide(), checkSymresackSolution(), chooseDoubleVar(), computeFixingrate(), countSparseSol(), createAndAddLinearCons(), createCGCutDirect(), createCoreProfile(), createNormalizedKnapsack(), createSelectedSortedEventpointsSol(), createSubscip(), CUTOFF_CONSTRAINT(), cutsSubstituteMIR(), cutTightenCoefs(), cutTightenCoefsQuad(), DECL_CHANGESUBSCIP(), DECL_VARFIXINGS(), determineBound(), enforceCuts(), execRelpscost(), fixAndPropagate(), fixVariable(), generateZerohalfCut(), getFlowCover(), getHighestCapacityUsage(), getNLPFracVars(), getVariableRedcostScore(), handle1Cycle(), handleCycle(), heurExec(), insertSortedRootNeighbors(), mod2(), nodepartitionIsConnected(), optimize(), performFixing(), performRandRounding(), performRelaxSimpleRounding(), performSimpleRounding(), propagateCons(), readBounds(), readGenerals(), resolvePropagationCoretimes(), restrictToBinaryBounds(), roundFixingValue(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSEXIT(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPcheckSolutionOrbisack(), SCIPconvertRealToInt(), SCIPconvertRealToLongint(), SCIPresolveSolHeurSubNlp(), SCIPselectVarPseudoStrongBranching(), SCIPwriteCliqueGraph(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), separateCuts(), separateGLS(), separateHeur(), solveNLP(), tightenBounds(), tightenCoefs(), tryAdd2variableBuffer(), writeFzn(), writeOpbFixedVars(), and writeOpbRelevantAnds().

◆ SCIPisFeasFracIntegral()

SCIP_Bool SCIPisFeasFracIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if given fractional part is smaller than feastol

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47411 of file scip.c.

References SCIPsetIsFeasFracIntegral(), and Scip::set.

◆ SCIPfeasFloor()

SCIP_Real SCIPfeasFloor	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value + feasibility tolerance down to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47423 of file scip.c.

References SCIPsetFeasFloor(), and Scip::set.

Referenced by addOrigRow(), aggregateVariables(), buildMod2Matrix(), calcBranchScore(), calcPscostQuot(), calcShiftVal(), checkRedundancySide(), chooseDoubleVar(), computeCut(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), createAndAddLinearCons(), createNormalizedKnapsack(), createSubscip(), determineBound(), enforceSOS2(), execRelpscost(), generateZerohalfCut(), getOptimalShiftingValue(), getZiValue(), handle1Cycle(), performRandRounding(), performSimpleRounding(), restrictToBinaryBounds(), roundFixingValue(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIPapplyProximity(), SCIPgetVarStrongbranchWithPropagation(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPwriteGms(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), tightenBounds(), tightenCoefs(), tightenSides(), transformNonIntegralRow(), and updateTcliquegraph().

◆ SCIPfeasCeil()

SCIP_Real SCIPfeasCeil	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value - feasibility tolerance up to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47435 of file scip.c.

References SCIPsetFeasCeil(), and Scip::set.

Referenced by addGLSCliques(), addNextLevelCliques(), addOrigRow(), branchruledataEnsureArraySize(), buildMod2Matrix(), calcBranchScore(), checkRedundancySide(), chooseDoubleVar(), computeCut(), computeEstOmegaset(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), createSubscip(), execRelpscost(), getOptimalShiftingValue(), getZiValue(), handle1Cycle(), heurdataEnsureArraySize(), insertSortedRootNeighbors(), performFixing(), performRandRounding(), performSimpleRounding(), resolveGenVBoundPropagation(), restrictToBinaryBounds(), roundFixingValue(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPgetVarStrongbranchWithPropagation(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), tightenBounds(), tightenCoefs(), tightenSides(), and updateObjUpperbound().

◆ SCIPfeasRound()

SCIP_Real SCIPfeasRound	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value to the nearest integer in feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47447 of file scip.c.

References SCIPsetFeasRound(), and Scip::set.

Referenced by generateZerohalfCut(), heurExec(), and sampleRandomPoints().

◆ SCIPfeasFrac()

SCIP_Real SCIPfeasFrac	(	SCIP *	scip,
		SCIP_Real	val
	)

returns fractional part of value, i.e. x - floor(x)

returns fractional part of value, i.e. x - floor(x) in feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47459 of file scip.c.

References SCIPsetFeasFrac(), and Scip::set.

Referenced by createSubproblem(), getGMIFromRow(), handleCycle(), roundFixingValue(), SCIP_DECL_SEPAEXECLP(), and separateCuts().

◆ SCIPisDualfeasEQ()

SCIP_Bool SCIPisDualfeasEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47471 of file scip.c.

References SCIPsetIsDualfeasEQ(), and Scip::set.

◆ SCIPisDualfeasLT()

SCIP_Bool SCIPisDualfeasLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference val1 and val2 is lower than dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47484 of file scip.c.

References SCIPsetIsDualfeasLT(), and Scip::set.

◆ SCIPisDualfeasLE()

SCIP_Bool SCIPisDualfeasLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47497 of file scip.c.

References SCIPsetIsDualfeasLE(), and Scip::set.

Referenced by propagateLowerboundBinvar().

◆ SCIPisDualfeasGT()

SCIP_Bool SCIPisDualfeasGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47510 of file scip.c.

References SCIPsetIsDualfeasGT(), and Scip::set.

◆ SCIPisDualfeasGE()

SCIP_Bool SCIPisDualfeasGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47523 of file scip.c.

References SCIPsetIsDualfeasGE(), and Scip::set.

◆ SCIPisDualfeasZero()

SCIP_Bool SCIPisDualfeasZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range dual feasibility tolerance of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47536 of file scip.c.

References SCIPsetIsDualfeasZero(), and Scip::set.

Referenced by countNonZeroRootRedcostVars(), createRows(), fixVariables(), getVariableRedcostScore(), propagateRedcostBinvar(), propagateRedcostVar(), propagateRootRedcostBinvar(), propagateRootRedcostVar(), and propdataInit().

◆ SCIPisDualfeasPositive()

SCIP_Bool SCIPisDualfeasPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47548 of file scip.c.

References SCIPsetIsDualfeasPositive(), and Scip::set.

Referenced by getVariableRedcostScore(), propagateRedcostBinvar(), propagateRedcostVar(), propagateRootRedcostBinvar(), and propagateRootRedcostVar().

◆ SCIPisDualfeasNegative()

SCIP_Bool SCIPisDualfeasNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47560 of file scip.c.

References SCIPsetIsDualfeasNegative(), and Scip::set.

Referenced by getVariableRedcostScore(), propagateRedcostBinvar(), propagateRedcostVar(), propagateRootRedcostBinvar(), and propagateRootRedcostVar().

◆ SCIPisDualfeasIntegral()

SCIP_Bool SCIPisDualfeasIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is integral within the LP dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47572 of file scip.c.

References SCIPsetIsDualfeasIntegral(), and Scip::set.

◆ SCIPisDualfeasFracIntegral()

SCIP_Bool SCIPisDualfeasFracIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if given fractional part is smaller than dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47584 of file scip.c.

References SCIPsetIsDualfeasFracIntegral(), and Scip::set.

◆ SCIPdualfeasFloor()

SCIP_Real SCIPdualfeasFloor	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value + dual feasibility tolerance down to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47596 of file scip.c.

References SCIPsetDualfeasFloor(), and Scip::set.

◆ SCIPdualfeasCeil()

SCIP_Real SCIPdualfeasCeil	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value - dual feasibility tolerance up to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47608 of file scip.c.

References SCIPsetDualfeasCeil(), and Scip::set.

◆ SCIPdualfeasRound()

SCIP_Real SCIPdualfeasRound	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value to the nearest integer in dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47620 of file scip.c.

References SCIPsetDualfeasRound(), and Scip::set.

◆ SCIPdualfeasFrac()

SCIP_Real SCIPdualfeasFrac	(	SCIP *	scip,
		SCIP_Real	val
	)

returns fractional part of value, i.e. x - floor(x) in dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 47632 of file scip.c.

References SCIPsetDualfeasFrac(), and Scip::set.

◆ SCIPisLbBetter()

SCIP_Bool SCIPisLbBetter	(	SCIP *	scip,
		SCIP_Real	newlb,
		SCIP_Real	oldlb,
		SCIP_Real	oldub
	)

checks, if the given new lower bound is tighter (w.r.t. bound strengthening epsilon) than the old one

checks, if the given new lower bound is at least min(oldub - oldlb, |oldlb|) times the bound strengthening epsilon better than the old one

Parameters

scip	SCIP data structure
newlb	new lower bound
oldlb	old lower bound
oldub	old upper bound

Definition at line 47646 of file scip.c.

References SCIPsetIsLbBetter(), and Scip::set.

Referenced by performFixing(), propagateCons(), and SCIPanalyzeDeductionsProbing().

◆ SCIPisUbBetter()

SCIP_Bool SCIPisUbBetter	(	SCIP *	scip,
		SCIP_Real	newub,
		SCIP_Real	oldlb,
		SCIP_Real	oldub
	)

checks, if the given new upper bound is tighter (w.r.t. bound strengthening epsilon) than the old one

checks, if the given new upper bound is at least min(oldub - oldlb, |oldub|) times the bound strengthening epsilon better than the old one

Parameters

scip	SCIP data structure
newub	new upper bound
oldlb	old lower bound
oldub	old upper bound

Definition at line 47661 of file scip.c.

References SCIPsetIsUbBetter(), and Scip::set.

Referenced by performFixing(), propagateCons(), and SCIPanalyzeDeductionsProbing().

◆ SCIPisRelEQ()

SCIP_Bool SCIPisRelEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47674 of file scip.c.

References SCIPsetIsRelEQ(), and Scip::set.

Referenced by addConcaveEstimatorBivariate(), checkFactorable(), fixAlmostFixedX(), generateCutLTI(), generateCutLTIfindIntersection(), generateSecantCut(), generateSecantCutNoCheck(), presolveUpgrade(), propagateCons(), registerBranchingCandidates(), registerBranchingCandidatesCentrality(), registerBranchingCandidatesGap(), registerBranchingCandidatesViolation(), registerBranchingVariables(), registerLargeRelaxValueVariableForBranching(), replaceByLinearConstraints(), replaceViolatedByLinearConstraints(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSINITLP(), SCIPaddBilinMcCormick(), SCIPbranchVarVal(), SCIPbranchVarValNary(), SCIPcomputeHyperplaneThreePoints(), SCIPisLinearLocalQuadratic(), and solveDerivativeEquation().

◆ SCIPisRelLT()

SCIP_Bool SCIPisRelLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is lower than epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47687 of file scip.c.

References SCIPsetIsRelLT(), and Scip::set.

Referenced by updateBilinearRelaxation().

◆ SCIPisRelLE()

SCIP_Bool SCIPisRelLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47700 of file scip.c.

References SCIPsetIsRelLE(), and Scip::set.

Referenced by addConcaveEstimatorBivariate(), addLinearConstraints(), and generateCutNonConvex().

◆ SCIPisRelGT()

SCIP_Bool SCIPisRelGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47713 of file scip.c.

References SCIPsetIsRelGT(), and Scip::set.

Referenced by SCIPupdateStartpointHeurSubNlp(), and updateBilinearRelaxation().

◆ SCIPisRelGE()

SCIP_Bool SCIPisRelGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47726 of file scip.c.

References SCIPsetIsRelGE(), and Scip::set.

Referenced by generateCutNonConvex().

◆ SCIPisSumRelEQ()

SCIP_Bool SCIPisSumRelEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47739 of file scip.c.

References SCIPsetIsSumRelEQ(), and Scip::set.

◆ SCIPisSumRelLT()

SCIP_Bool SCIPisSumRelLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is lower than sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47752 of file scip.c.

References SCIPsetIsSumRelLT(), and Scip::set.

◆ SCIPisSumRelLE()

SCIP_Bool SCIPisSumRelLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47765 of file scip.c.

References SCIPsetIsSumRelLE(), and Scip::set.

◆ SCIPisSumRelGT()

SCIP_Bool SCIPisSumRelGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47778 of file scip.c.

References SCIPsetIsSumRelGT(), and Scip::set.

◆ SCIPisSumRelGE()

SCIP_Bool SCIPisSumRelGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 47791 of file scip.c.

References SCIPsetIsSumRelGE(), and Scip::set.

◆ SCIPconvertRealToInt()

int SCIPconvertRealToInt	(	SCIP *	scip,
		SCIP_Real	real
	)

converts the given real number representing an integer to an int; in optimized mode the function gets inlined for performance; in debug mode we check some additional conditions

Parameters

scip	SCIP data structure
real	double bound to convert

Definition at line 47806 of file scip.c.

References SCIP_Real, SCIPisFeasEQ(), and SCIPisFeasIntegral().

Referenced by adjustOversizedJobBounds(), analyzeEnergyRequirement(), applyAlternativeBoundsBranching(), applyAlternativeBoundsFixing(), checkCons(), checkCumulativeCondition(), checkOverloadViaThetaTree(), collectBinaryVars(), collectBranchingCands(), collectDataTTEF(), collectDemands(), collectIntVars(), computeAlternativeBounds(), computeImpliedEst(), computeImpliedLct(), computeMinDistance(), consCheckRedundancy(), consdataCreateBinvars(), constraintNonOverlappingGraph(), coretimesUpdateLb(), coretimesUpdateUb(), createCoreProfile(), createCoverCuts(), createCoverCutsTimepoint(), createSelectedSortedEventpointsSol(), createSortedEventpoints(), createSortedEventpointsSol(), getActiveVar(), getHighestCapacityUsage(), presolveConsEffectiveHorizon(), presolveConsEst(), presolveConsLct(), processIntegerBoundChg(), propagateLbTTEF(), propagateTimetable(), propagateTTEF(), propagateUbTTEF(), removeIrrelevantJobs(), resolvePropagationCoretimes(), respropCumulativeCondition(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSRESPROP(), SCIPcreateWorstCaseProfile(), strengthenVarbounds(), tightenCoefs(), tightenLbTTEF(), and tightenUbTTEF().

◆ SCIPconvertRealToLongint()

SCIP_Longint SCIPconvertRealToLongint	(	SCIP *	scip,
		SCIP_Real	real
	)

converts the given real number representing an integer to a long integer; in optimized mode the function gets inlined for performance; in debug mode we check some additional conditions

Parameters

scip	SCIP data structure
real	double bound to convert

Definition at line 47822 of file scip.c.

References SCIP_Longint, SCIP_LONGINT_MAX, SCIP_LONGINT_MIN, SCIP_Real, SCIPisFeasEQ(), and SCIPisFeasIntegral().

Referenced by collectSolution(), and printValue().

◆ SCIPisUpdateUnreliable()

SCIP_Bool SCIPisUpdateUnreliable	(	SCIP *	scip,
		SCIP_Real	newvalue,
		SCIP_Real	oldvalue
	)

Checks, if an iteratively updated value is reliable or should be recomputed from scratch. This is useful, if the value, e.g., the activity of a linear constraint or the pseudo objective value, gets a high absolute value during the optimization process which is later reduced significantly. In this case, the last digits were canceled out when increasing the value and are random after decreasing it. We do not consider the cancellations which can occur during increasing the absolute value because they just cannot be expressed using fixed precision floating point arithmetic, anymore. In order to get more reliable values, the idea is to always store the last reliable value, where increasing the absolute of the value is viewed as preserving reliability. Then, after each update, the new absolute value can be compared against the last reliable one with this method, checking whether it was decreased by a factor of at least "lp/recompfac" and should be recomputed.

Parameters

scip	SCIP data structure
newvalue	new value after update
oldvalue	old value, i.e., last reliable value

Definition at line 47846 of file scip.c.

References checkStage(), FALSE, SCIP_CALL_ABORT, SCIPsetIsUpdateUnreliable(), Scip::set, and TRUE.

◆ SCIPprintReal()

void SCIPprintReal	(	SCIP *	scip,
		FILE *	file,
		SCIP_Real	val,
		int	width,
		int	precision
	)

outputs a real number, or "+infinity", or "-infinity" to a file

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
val	value to print
width	width of the field
precision	number of significant digits printed

Definition at line 46656 of file scip.c.

References Scip::messagehdlr, SCIP_MAXSTRLEN, SCIPmessageFPrintInfo(), SCIPsetIsInfinity(), SCIPsnprintf(), and Scip::set.

Referenced by SCIPprintMIPStart(), SCIPprintSol(), and SCIPprintTransSol().

◆ SCIPparseReal()

SCIP_Bool SCIPparseReal	(	SCIP *	scip,
		const char *	str,
		SCIP_Real *	value,
		char **	endptr
	)

parse a real value that was written with SCIPprintReal()

Parameters

scip	SCIP data structure
str	string to search
value	pointer to store the parsed value
endptr	pointer to store the final string position if successfully parsed, otherwise `str`

Definition at line 46683 of file scip.c.

References SCIPinfinity(), SCIPstrToRealValue(), and TRUE.

Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPprocessShellArguments().

SCIP

Detailed Description

Functions

Function Documentation

◆ SCIPepsilon()

◆ SCIPsumepsilon()

◆ SCIPfeastol()

◆ SCIPlpfeastol()

◆ SCIPdualfeastol()

◆ SCIPbarrierconvtol()

◆ SCIPcutoffbounddelta()

◆ SCIPrelaxfeastol()

◆ SCIPchgFeastol()

◆ SCIPchgLpfeastol()

◆ SCIPchgDualfeastol()

◆ SCIPchgBarrierconvtol()

◆ SCIPchgRelaxfeastol()

◆ SCIPmarkLimitChanged()

◆ SCIPinfinity()

◆ SCIPgetHugeValue()

◆ SCIPisEQ()

◆ SCIPisLT()

◆ SCIPisLE()

◆ SCIPisGT()

◆ SCIPisGE()

◆ SCIPisInfinity()

◆ SCIPisHugeValue()

◆ SCIPisZero()

◆ SCIPisPositive()

◆ SCIPisNegative()

◆ SCIPisIntegral()

◆ SCIPisScalingIntegral()

◆ SCIPisFracIntegral()

◆ SCIPfloor()

◆ SCIPceil()

◆ SCIPround()

◆ SCIPfrac()

◆ SCIPisSumEQ()

◆ SCIPisSumLT()

◆ SCIPisSumLE()

◆ SCIPisSumGT()

◆ SCIPisSumGE()

◆ SCIPisSumZero()

◆ SCIPisSumPositive()

◆ SCIPisSumNegative()

◆ SCIPisFeasEQ()

◆ SCIPisFeasLT()

◆ SCIPisFeasLE()

◆ SCIPisFeasGT()

◆ SCIPisFeasGE()

◆ SCIPisFeasZero()

◆ SCIPisFeasPositive()

◆ SCIPisFeasNegative()

◆ SCIPisFeasIntegral()

◆ SCIPisFeasFracIntegral()

◆ SCIPfeasFloor()

◆ SCIPfeasCeil()

◆ SCIPfeasRound()

◆ SCIPfeasFrac()

◆ SCIPisDualfeasEQ()

◆ SCIPisDualfeasLT()

◆ SCIPisDualfeasLE()

◆ SCIPisDualfeasGT()

◆ SCIPisDualfeasGE()

◆ SCIPisDualfeasZero()

◆ SCIPisDualfeasPositive()

◆ SCIPisDualfeasNegative()

◆ SCIPisDualfeasIntegral()

◆ SCIPisDualfeasFracIntegral()

◆ SCIPdualfeasFloor()

◆ SCIPdualfeasCeil()

◆ SCIPdualfeasRound()

◆ SCIPdualfeasFrac()

◆ SCIPisLbBetter()

◆ SCIPisUbBetter()

◆ SCIPisRelEQ()

◆ SCIPisRelLT()

◆ SCIPisRelLE()

◆ SCIPisRelGT()

◆ SCIPisRelGE()