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SCIP Doxygen Documentation: String Methods

commonly used methods for strings

int SCIPmemccpy (char *dest, const char *src, char stop, unsigned int cnt) void SCIPprintSysError (const char *message) char * SCIPstrtok (char *s, const char *delim, char **ptrptr) void SCIPescapeString (char *t, int bufsize, const char *s) SCIP_RETCODE SCIPskipSpace (char **s) int SCIPsnprintf (char *t, int len, const char *s,...) int SCIPstrncpy (char *t, const char *s, int size) int SCIPstrcasecmp (const char *s1, const char *s2) int SCIPstrncasecmp (const char *s1, const char *s2, int length) SCIP_Bool SCIPstrToIntValue (const char *str, int *value, char **endptr) SCIP_Bool SCIPstrToRealValue (const char *str, SCIP_Real *value, char **endptr) void SCIPstrCopySection (const char *str, char startchar, char endchar, char *token, int size, char **endptr) SCIP_Bool SCIPstrAtStart (const char *s, const char *t, size_t tlen) ◆ SCIPmemccpy() int SCIPmemccpy ( char * dest, const char * src, char stop, unsigned int cnt )

copies characters from 'src' to 'dest', copying is stopped when either the 'stop' character is reached or after 'cnt' characters have been copied, whichever comes first.

Note: undefined behaviuor on overlapping arrays

copies characters from 'src' to 'dest', copying is stopped when either the 'stop' character is reached or after 'cnt' characters have been copied, whichever comes first.

Note: undefined behavior on overlapping arrays

Parameters: dest destination pointer to copy to src source pointer to copy from stop character when found stop copying cnt maximal number of characters to copy

Definition at line 10747 of file misc.c.

References NULL.

Referenced by mpsinputSetObjname(), mpsinputSetProbname(), readBounds(), readCoefficients(), readCols(), readRanges(), readRhs(), readSOS(), readSos(), stoinputSetProbname(), stoinputSetStochtype(), and timinputSetProbname().

◆ SCIPprintSysError() void SCIPprintSysError ( const char * message )

prints an error message containing of the given string followed by a string describing the current system error; prefers to use the strerror_r method, which is threadsafe; on systems where this method does not exist, NO_STRERROR_R should be defined (see INSTALL), in this case, srerror is used which is not guaranteed to be threadsafe (on SUN-systems, it actually is)

prints an error message containing of the given string followed by a string describing the current system error

Prefers to use the strerror_r method, which is threadsafe. On systems where this method does not exist, NO_STRERROR_R should be defined (see INSTALL). In this case, strerror is used which is not guaranteed to be threadsafe (on SUN-systems, it actually is).

Parameters: message first part of the error message, e.g. the filename

Definition at line 10772 of file misc.c.

References NULL, SCIP_MAXSTRLEN, and SCIPmessagePrintError().

Referenced by LOPreadFile(), processArguments(), readBounds(), readDecomposition(), readDiffFile(), readFZNFile(), readLIBSVM(), readLPFile(), readMps(), readOPBFile(), readPIPFile(), readSol(), readSolFile(), readSto(), readTim(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_READERREAD(), SCIPlpWriteMip(), SCIPparamsetRead(), SCIPparamsetWrite(), SCIPparamWrite(), SCIPprocessShellArguments(), SCIPvisualInit(), SCIPvisualizeConsCumulative(), and writeProblem().

◆ SCIPstrtok() char * SCIPstrtok ( char * s, const char * delim, char ** ptrptr )

extracts tokens from strings - wrapper method for strtok_r()

Parameters: s string to parse delim delimiters for parsing ptrptr pointer to working char pointer - must stay the same while parsing

Definition at line 10821 of file misc.c.

Referenced by findBestObjectiveValue(), getNJobs(), getNResources(), getResourcesNames(), mpsinputReadLine(), parseConstraint(), readCnf(), SCIP_DECL_CONSPARSE(), smpsinputReadLine(), stoinputReadLine(), and timinputReadLine().

◆ SCIPescapeString() void SCIPescapeString ( char * t, int bufsize, const char * s )

translates the given string into a string where symbols ", ', and spaces are escaped with a \ prefix translates the given string into a string where unescaped symbols ", ', and spaces are escaped with a \ prefix

Parameters: t target buffer to store escaped string bufsize size of buffer t s string to transform into escaped string

Definition at line 10835 of file misc.c.

References NULL.

Referenced by SCIP_DECL_DIALOGEXEC(), and SCIPdialoghdlrAddHistory().

◆ SCIPskipSpace()

increases string pointer as long as it refers to a space character or an explicit space control sequence

Parameters: s pointer to string pointer

Definition at line 10869 of file misc.c.

References SCIP_OKAY, and SCIP_SPACECONTROL.

Referenced by getFixedVariable(), getObjective(), getStatistics(), parseBase(), parseExpr(), parseFactor(), parseTerm(), SCIP_DECL_CONSPARSE(), SCIPconsParse(), SCIPparseReal(), SCIPparseVarsList(), and SCIPparseVarsPolynomial().

◆ SCIPsnprintf() int SCIPsnprintf ( char * t, int len, const char * s, ... )

safe version of snprintf

Parameters: t target string len length of the string to copy s source string ... further parameters

Definition at line 10880 of file misc.c.

References NULL, and SCIPerrorMessage.

Referenced by ObjPricerVRP::add_tour_variable(), addAuxiliaryVariablesToMaster(), addBranchingComplementaritiesSOS1(), addCliques(), addCut(), addExtendedAsymmetricFormulation(), addExtendedFlowFormulation(), addExtraCliques(), addFixParamDialog(), addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addLocalConss(), addNlrow(), addObjCutoff(), addOrbitopesDynamic(), addOrbitopeSubgroup(), addPathCuts(), addRegularScholtes(), addRelaxation(), addScenarioVarsAndConsToProb(), addSetParamDialog(), addSlackVars(), addSplitcons(), addSSTConssOrbitAndUpdateSST(), addStrongSBCsSubgroup(), addSubtourCuts(), addSymresackConss(), addSymresackInequality(), addTourCuts(), addTrustRegionConstraints(), addVarCardinality(), addVariable(), addWeakSBCsSubgroup(), adjustOversizedJobBounds(), aggregateGeneratedCuts(), aggregation(), alnsIncludeNeighborhood(), appendVarCardinality(), applyCliqueFixings(), applyFixings(), applyObbtBilinear(), applyRepair(), assignAuxiliaryVariables(), BENDERS_CUTORACLE(), blockCreateSubscip(), branchBalancedCardinality(), btPrintSubtree(), buildScenariosFromBlocks(), checkConsnames(), checkVarnames(), cliquePresolve(), COLORprobSetUpArrayOfCons(), componentCreateSubscip(), componentPackingPartitioningOrbisackUpgrade(), computeAutomorphisms(), computeCut(), computeEffectiveHorizon(), computeMinDistance(), computeRltCut(), consdataCollectLinkingCons(), consdataCreateBinvars(), conshdlrsCanProvideSymInformation(), constructCutRow(), convertLongEquality(), copyCuts(), createAndAddAndCons(), createAndAddLinearCons(), createAndAddProofcons(), createAndAddTransferredCut(), createAndApplyStoredBendersCut(), createAuxVar(), createBinaryConstraintName(), createBlockproblem(), createCapacityRestriction(), createCapacityRestrictionIntvars(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createCipFormulation(), createConflict(), createConstraints(), createCoverCutsTimepoint(), createCoveringProblem(), createDisaggrRow(), createDisaggrVars(), createIndicatorConstraint(), createInitialColumns(), createIntervalRelaxation(), createKKTComplementarityBinary(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createKKTDualCons(), createMasterproblem(), createMIP(), createMipCpFormulation(), createMipFormulation(), createOriginalproblem(), createPartitionCut(), createPatternVars(), createProbOnlyEdge(), createProbQP(), createProbSimplified(), createProbSimplifiedTest(), createRelaxation(), createRows(), createScenariosFromBlocks(), createSubproblem(), createSubproblems(), createSubscip(), createSubSCIP(), createVariableMappings(), createVariables(), createVarUbs(), deleteRedundantVars(), detectAndHandleSubgroups(), detectRedundantVars(), displayRelevantStats(), doBendersCreate(), doBenderscutCreate(), doBranchruleCreate(), doComprCreate(), doConcsolverTypeCreate(), doConflicthdlrCreate(), doConshdlrCreate(), doCopy(), doCutselCreate(), doDispCreate(), doHeurCreate(), doNodeselCreate(), doPresolCreate(), doPricerCreate(), doPricing(), doPropCreate(), doRelaxCreate(), doScipCreate(), doSepaCreate(), doTableCreate(), dualPresolve(), AMPLProblemHandler::EndInput(), estimateBivariateQuotient(), estimateUnivariateQuotient(), execmain(), executeLNSHeuristic(), extendToCover(), extensionOperatorSOS1(), extractGates(), findAggregation(), findBestObjectiveValue(), findCumulativeConss(), findScenarioVar(), fixDeleteOrUpgradeCons(), flattenAssignment(), flattenFloat(), forbidCover(), forbidFixation(), fromAmpl(), generateAndApplyBendersCuts(), generateAndApplyBendersIntegerCuts(), generateAndApplyBendersNogoodCut(), generateBoundInequalityFromSOS1Nodes(), generateCut(), generateCutSolDisagg(), generateCutSolSOC(), generateDisjCutSOS1(), generateOddCycleCut(), generateRowCardinality(), generateRowSOS2(), generateZerohalfCut(), getBinaryProductExprDo(), getFixedVariable(), getJobs(), getScenarioDecompVar(), getScenarioEntityName(), handleDoublelLexMatrix(), handleOrbitope(), includeConshdlrCountsols(), initLP(), initProblem(), LOPseparate(), lpBarrier(), lpDualSimplex(), lpPrimalSimplex(), newsolCliqueAddRow(), AMPLProblemHandler::OnHeader(), paramsetSetHeuristicsAggressive(), paramsetSetHeuristicsDefault(), paramsetSetHeuristicsFast(), paramsetSetHeuristicsOff(), paramsetSetPresolvingAggressive(), paramsetSetPresolvingDefault(), paramsetSetPresolvingFast(), paramsetSetPresolvingOff(), paramsetSetSeparatingAggressive(), paramsetSetSeparatingDefault(), paramsetSetSeparatingOff(), parseConstantArray(), parseConstraint(), parseName(), parseVariableArray(), performImplicationGraphAnalysis(), preprocessConstraintPairs(), presolveAddKKTLinearCons(), presolveSingleLockedVars(), printActiveVariables(), printAggregatedCons(), printAndCons(), printBoundSection(), printConformName(), printEntry(), printIndicatorCons(), printLinearCons(), printLinearRow(), printName(), printNLRow(), printNonlinearRow(), printRecord(), printReport(), printRow(), printRowNl(), printRowType(), printSignomial(), printSOSCons(), printSosCons(), printStart(), processArguments(), processNlRow(), propIndicator(), rangedRowPropagation(), readArguments(), readBlocks(), readBounds(), readCnf(), readCnfLine(), readConstraints(), readIndep(), readIndicators(), readLIBSVM(), readScenarios(), readSemicontinuous(), readSol(), readSolFile(), readSOS(), readSos(), readSOScons(), readVariables(), real2String(), reformulateFactorizedBinaryQuadratic(), resolvePropagation(), schedulerIncludeNeighborhood(), SCIP_DECL_BENDERSCUTEXEC(), SCIP_DECL_CONCSOLVERCREATEINST(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIALOGDESC(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_NLHDLRSOLLINEARIZE(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERREAD(), SCIP_DECL_SEPAEXECLP(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPbendersApplyDecomposition(), SCIPbendersMergeSubproblemIntoMaster(), SCIPconcsolverCreateInstance(), SCIPcopyLargeNeighborhoodSearch(), SCIPcreateConsCardinality(), SCIPcreateConsIndicatorGeneric(), SCIPcreateConsIndicatorGenericLinConsPure(), SCIPcreateSchedulingProblem(), SCIPdecompPrintStats(), SCIPdialogDisplayMenuEntry(), SCIPdialogGetPath(), SCIPdialoghdlrAddHistory(), SCIPdialoghdlrCreate(), SCIPdialoghdlrGetLine(), SCIPdialoghdlrGetWord(), SCIPdigraphPrintGml(), SCIPdispLongint(), SCIPdispTime(), SCIPdivesetCreate(), SCIPException::SCIPException(), SCIPgetErrorString(), SCIPgetVarCopy(), SCIPincludeBenderscutInt(), SCIPincludeBenderscutNogood(), SCIPincludeBenderscutOpt(), SCIPincludeConsUpgradeNonlinear(), SCIPincludeLinconsUpgrade(), SCIPincludeNlpi(), SCIPincludeNlpSolverWorhp(), SCIPincludeReaderZpl(), SCIPlpiReadLP(), SCIPlpiWriteLP(), SCIPlpWriteMip(), SCIPnlhdlrCreate(), SCIPnlpiOraclePrintProblemGams(), SCIPnodePrintAncestorBranchings(), SCIPparamsetSetEmphasis(), SCIPparamsetSetToSubscipsOff(), SCIPprintConflictStatistics(), SCIPprintReal(), SCIPprintSolutionStatistics(), SCIPprobdataCreate(), SCIPprobTransform(), SCIPreaderWrite(), SCIPregForestFromFile(), SCIPreoptApplyCuts(), SCIPreoptApplyGlbConss(), SCIPsetConshdlrPresol(), SCIPsetConshdlrProp(), SCIPsetConshdlrSepa(), SCIPsetPropPresol(), SCIPsnprintfProbingStats(), SCIPtpiGetLibraryDesc(), SCIPtpiGetLibraryName(), SCIPtransformMinUC(), SCIPvarNegate(), SCIPvarTransform(), SCIPverifyCircularPatternNLP(), SCIPvisualizeConsCumulative(), SCIPwriteCliqueGraph(), SCIPwriteGms(), SCIPwriteLp(), SCIPwriteMps(), SCIPwritePip(), separateCons(), separateCuts(), separateGLS(), separateIndicators(), separateMcCormickImplicit(), separatePerspective(), separateSCIs(), separateSequLiftedExtendedWeightInequality(), separateSequLiftedMinimalCoverInequality(), separateSupLiftedMinimalCoverInequality(), setObjective(), setupAndSolveCumulativeSubscip(), setupAndSolveFiniteSolSubscip(), setupProblem(), setupSubscipLpface(), solveClassification(), solveMinIISC(), solvePricingMINLP(), strengthenVarbounds(), subscipSetParams(), syntaxError(), TCLIQUE_NEWSOL(), tightenSingleVar(), tightenWeights(), toString(), tryAggregateIntVars(), tryUpgradingLogicor(), tryUpgradingSetppc(), tryUpgradingXor(), upgradeCons(), upgradeIndicatorSuperindicator(), upgradeLinearSuperindicator(), varSetName(), visualizeSolutionAscii(), writeFzn(), writeOpb(), writeOpbFixedVars(), writeOpbObjective(), and writeOpbRelevantAnds().

◆ SCIPstrncpy() int SCIPstrncpy ( char * t, const char * s, int size )

safe version of strncpy

Copies string in s to t using at most size-1 nonzero characters (strncpy copies size characters). It always adds a terminating zero char. Does not pad the remaining string with zero characters (unlike strncpy). Returns the number of copied nonzero characters, if the length of s is at most size - 1, and returns size otherwise. Thus, the original string was truncated if the return value is size.

Parameters: t target string s source string size maximal size of t

Definition at line 10950 of file misc.c.

Referenced by appendBuffer(), readInputLine(), readPolynomial(), SCIP_DECL_CONSPARSE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_READERREAD(), SCIPdialogGetPath(), SCIPdialoghdlrAddHistory(), and xmlProcess().

◆ SCIPstrcasecmp() int SCIPstrcasecmp ( const char * s1, const char * s2 ) ◆ SCIPstrncasecmp() int SCIPstrncasecmp ( const char * s1, const char * s2, int length ) ◆ SCIPstrToIntValue() SCIP_Bool SCIPstrToIntValue ( const char * str, int * value, char ** endptr )

extract the next token as a integer value if it is one; in case no value is parsed the endptr is set to str

Returns: Returns TRUE if a value could be extracted, otherwise FALSE

Parameters: 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 10977 of file misc.c.

References FALSE, NULL, SCIPdebugMessage, and TRUE.

Referenced by getJobId(), getJobs(), getPrecedence(), parseDetails(), readFile(), SCIP_DECL_CONSPARSE(), SCIP_DECL_DIALOGEXEC(), and SCIP_DECL_READERREAD().

◆ SCIPstrToRealValue()

extract the next token as a double value if it is one; in case a value is parsed the endptr is set to str

Returns: Returns TRUE if a value could be extracted, otherwise FALSE

extract the next token as a double value if it is one; in case no value is parsed the endptr is set to str

Returns: Returns TRUE if a value could be extracted, otherwise FALSE

Parameters: 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 11008 of file misc.c.

References FALSE, NULL, SCIPdebugMessage, and TRUE.

Referenced by getFixedVariable(), getNJobs(), getNResources(), getObjective(), getResourcesCapacities(), parseBase(), parseExpr(), parseFactor(), parseValue(), SCIP_DECL_CONSPARSE(), SCIPparseReal(), SCIPparseVarsPolynomial(), SCIPregForestFromFile(), and varParse().

◆ SCIPstrCopySection() void SCIPstrCopySection ( const char * str, char startchar, char endchar, char * token, int size, char ** endptr )

copies the first size characters between a start and end character of str into token, if no error occurred endptr will point to the position after the read part, otherwise it will point to str

Parameters: str string to search startchar character which defines the beginning endchar character which defines the ending token string to store the copy size size of the token char array endptr pointer to store the final string position if successfully parsed, otherwise str

Definition at line 11038 of file misc.c.

References NULL, SCIP_MAXSTRLEN, and SCIPdebugMessage.

Referenced by parseBounds(), parseDetails(), SCIP_DECL_CONSPARSE(), SCIPconsParse(), SCIPparseVarName(), and varParse().

◆ SCIPstrAtStart() SCIP_Bool SCIPstrAtStart ( const char * s, const char * t, size_t tlen )

checks whether a given string t appears at the beginning of the string s (up to spaces at beginning)

Parameters: s string to search in t string to search for tlen length of t

Definition at line 11417 of file misc.c.

References FALSE, NULL, SCIP_MAXSTRLEN, and TRUE.

Referenced by SCIP_DECL_READERREAD().

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