Generated for GAMS ..

Functions, Procedures, and Properties

Logging
Boolean	gevSkipIOLegacySet
	Prevent log and status file to be opened

GAMS Options
Integer	gevThreads
	Number of threads (1..n); if option gevThreadsRaw = 0, this function gives the number of available processors

Other
Double	gevNSolves
	Number of solves

Deprecated
Integer	gevInitJacLegacy
	Legacy Jacobian Evaluation: Initialize row wise Jacobian structure

void	gevSetColRowPermLegacy
	Legacy Jacobian Evaluation: Set column and row permutation GAMS to solver

void	gevSetJacPermLegacy
	Legacy Jacobian Evaluation: Set Jacobian permutation GAMS to solver

Integer	gevEvalNewPointLegacy
	Legacy Jacobian Evaluation: Set new point and do point copy magic

Integer	gevEvalJacLegacy
	Legacy Jacobian Evaluation: Evaluate row and store in Jacobian structure

Integer	gevEvalJacLegacyX
	Legacy Jacobian Evaluation: Evaluate set of rows and store in Jacobian structure

Integer	gevNextNLLegacy
	Legacy Jacobian Evaluation: Provide next nonlinear row, start with M

Integer	gevRowGms2SlvLegacy
	Legacy Jacobian Evaluation: Provide permuted row index

void	gevFreeJacLegacy
	Legacy Jacobian Evaluation: Free row wise Jacobian structure

Pointer	gevGetALGX
	Pass pointer to ALGX structure

GAMS Options
Integer	gevGetIntOpt
	Get integer valued option (see enumerated constants)

Double	gevGetDblOpt
	Get double valued option (see enumerated constants)

ShortString	gevGetStrOpt
	Get string valued option (see enumerated constants)

void	gevSetIntOpt
	Set integer valued option (see enumerated constants)

void	gevSetDblOpt
	Set double valued option (see enumerated constants)

void	gevSetStrOpt
	Set string valued option (see enumerated constants)

void	gevSynchronizeOpt
	Copy environment options to passed in option object

GAMS Solvers
Integer	gevGetSlvExeInfo
	Name of solver executable

Integer	gevGetSlvLibInfo
	Solver library name, prefix, and API version

Integer	gevCapabilityCheck
	Check if solver is capable to handle model type given

Integer	gevSolverVisibility
	Provide information if solver is hidden

Integer	gevNumSolvers
	Number of solvers in the system

ShortString	gevGetSolver
	Name of the solver chosen for modeltype (if non is chosen, it is the default)

ShortString	gevGetCurrentSolver
	Name of the select solver

ShortString	gevGetSolverDefault
	Name of the default solver for modeltype

Integer	gevSolver2Id
	Internal ID of solver, 0 for failure

ShortString	gevId2Solver
	Solver name

ShortString	gevCallSolverNextGridDir
	Creates grid directory for next gevCallSolver call and returns name (if called with gevSolveLinkAsyncGrid or gevSolveLinkAsyncSimulate)

Integer	gevCallSolver
	Call GAMS solver on GMO model or control file

Integer	gevCallSolverHandleStatus
	Check status of solver job if called with gevSolveLinkAsyncGrid (0 job is done, 1 unknown job handle, 2 job is running)

Integer	gevCallSolverHandleDelete
	Delete instance of solver job if called with gevSolveLinkAsyncGrid (0 deleted, 1 unknown job handle, 2 deletion failed)

Integer	gevCallSolverHandleCollect
	Collect solution from solver job if called with gevSolveLinkAsyncGrid (0 loaded, 1 unknown job handle, 2 job is running, 3 other error), delete instance

Initialization
void	gevRegisterWriteCallback
	Register callback for log and status streams

void	gevCompleteEnvironment
	Complete initialization of environment

Integer	gevInitEnvironmentLegacy
	Initialization in legacy mode (from control file)

Interrupt
void	gevTerminateUninstall
	Uninstalls an already registered interrupt handler

void	gevTerminateInstall
	Installs an already registered interrupt handler

void	gevTerminateSet
	Register a pointer to some memory that will indicate an interrupt and the pointer to a interrupt handler and installs it

Boolean	gevTerminateGet
	Check if one should interrupt

void	gevTerminateClear
	Resets the interrupt counter

void	gevTerminateRaise
	Increases the interrupt counter

void	gevTerminateGetHandler
	Get installed termination handler

Logging
Boolean	gevSwitchLogStat
	Switch log and status streams to another file or callback

Boolean	gevSwitchLogStatEx
	Switch log and status streams to another file or callback

Pointer	gevGetLShandle
	Returns handle to last log and status stream stored by gevSwitchLogStat (Workaround for problem with vptr in Python)

Boolean	gevRestoreLogStat
	Restore log status stream settings

Boolean	gevRestoreLogStatRewrite
	Restore log status stream settings but never append to former log

void	gevLog
	Send string to log stream

void	gevLogPChar
	Send PChar to log stream, no newline added

void	gevStat
	Send string to status stream

void	gevStatC
	Send string to status and copy to listing file

void	gevStatPChar
	Send PChar to status stream, no newline added

void	gevStatAudit
	GAMS internal status stream operation {=0}

void	gevStatCon
	GAMS internal status stream operation {=1}

void	gevStatCoff
	GAMS internal status stream operation {=2}

void	gevStatEOF
	GAMS internal status stream operation {=3}

void	gevStatSysout
	GAMS internal status stream operation {=4}

void	gevStatAddE
	GAMS internal status stream operation {=5}

void	gevStatAddV
	GAMS internal status stream operation {=6}

void	gevStatAddJ
	GAMS internal status stream operation {=7}

void	gevStatEject
	GAMS internal status stream operation {=8}

void	gevStatEdit
	GAMS internal status stream operation {=9}

void	gevStatE
	GAMS internal status stream operation {=E}

void	gevStatV
	GAMS internal status stream operation {=V}

void	gevStatT
	GAMS internal status stream operation {=T}

void	gevStatA
	GAMS internal status stream operation {=A}

void	gevStatB
	GAMS internal status stream operation {=B}

void	gevLogStat
	Send string to log and status streams and copy to listing file

void	gevLogStatNoC
	Send string to log and status streams

void	gevLogStatPChar
	Send string to log and status streams, no newline added

void	gevLogStatFlush
	Flush status streams (does not work with callback)

ShortString	gevGetAnchor
	Get anchor line for log (points to file and is clickable in GAMS IDE)

void	gevLSTAnchor
	Put a line to log that points to the current lst line"

Integer	gevStatAppend
	Append status file to current status file

void	gevMIPReport
	Print MIP report to log and lst

Other
ShortString	gevGetScratchName
	Get scratch file name plus scratch extension including path of scratch directory

Integer	gevWriteModelInstance
	Creates model instance file

Integer	gevDuplicateScratchDir
	Duplicates a scratch directory and points to read only files in source scratch directory

Timing
Double	gevTimeJNow
	GAMS Julian time

Double	gevTimeDiff
	Time difference in seconds since creation or last call to gevTimeDiff

Double	gevTimeDiffStart
	Time difference in seconds since creation of object

void	gevTimeSetStart
	Reset timer (overwrites time stamp from creation)

Enumerated Constants

gevLogStatMode	gevdoErr	= 0
	gevdoStat	= 1
	gevdoLog	= 2

gevCallSolverMode	gevSolverSameStreams	= 0
	gevSolverQuiet	= 1
	gevSolverOwnFile	= 2

gevCallSolverSolveLink	gevSolveLinkCallScript	= 1
	gevSolveLinkCallModule	= 2
	gevSolveLinkAsyncGrid	= 3
	gevSolveLinkAsyncSimulate	= 4
	gevSolveLinkLoadLibrary	= 5

gevOptions	gevPageWidth	= PageWidth
	gevPageSize	= PageSize
	gevsubsysFile	= subsysFile
	gevNameScrDir	= NameScrDir
	gevNameSysDir	= NameSysDir
	gevNameCurDir	= NameCurDir
	gevNameWrkDir	= NameWrkDir
	gevLogOption	= LogOption
	gevNameLogFile	= NameLogFile
	gevNameCtrFile	= NameCtrFile
	gevNameMatrix	= NameMatrix
	gevNameInstr	= NameInstr
	gevNameStaFile	= NameStaFile
	gevlicenseFile	= licenseFile
	gevKeep	= Keep
	gevIDEFlag	= IDEFlag
	gevIterLim	= IterLim
	gevDomLim	= DomLim
	gevResLim	= ResLim
	gevOptCR	= OptCR
	gevOptCA	= OptCA
	gevSysOut	= SysOut
	gevNodeLim	= NodeLim
	gevWorkFactor	= WorkFactor
	gevWorkSpace	= WorkSpace
	gevSavePoint	= SavePoint
	gevHeapLimit	= HeapLimit
	gevNameScrExt	= NameScrExt
	gevInteger1	= Integer1
	gevInteger2	= Integer2
	gevInteger3	= Integer3
	gevInteger4	= Integer4
	gevInteger5	= Integer5
	gevFDDelta	= FDDelta
	gevFDOpt	= FDOpt
	gevAlgFileType	= AlgFileType
	gevGamsVersion	= GamsVersion
	gevGenSolver	= GenSolver
	gevCurSolver	= CurSolver
	gevThreadsRaw	= ThreadsRaw
	gevUseCutOff	= UseCutOff
	gevUseCheat	= UseCheat
	gevNameGamsDate	= NameGamsDate
	gevNameGamsTime	= NameGamsTime
	gevLicense1	= License1
	gevLicense2	= License2
	gevLicense3	= License3
	gevLicense4	= License4
	gevLicense5	= License5
	gevLicense6	= License6
	gevLicense7	= License7
	gevLicense8	= License8
	gevNameParams	= NameParams
	gevNameScenFile	= NameScenFile
	gevNameExtFFile	= NameExtFFile
	gevisDefaultLicense	= isDefaultLicense
	gevisDefaultSubsys	= isDefaultSubsys
	gevCheat	= Cheat
	gevCutOff	= CutOff
	gevReal1	= Real1
	gevReal2	= Real2
	gevReal3	= Real3
	gevReal4	= Real4
	gevReal5	= Real5
	gevReform	= Reform
	gevTryInt	= TryInt

Definitions

gevNSolves ↵

Number of solves

Type: Property of type Double

Action: read

gevSkipIOLegacySet ↵

Prevent log and status file to be opened

Type: Property of type Boolean

Action: write

gevThreads ↵

Number of threads (1..n); if option gevThreadsRaw = 0, this function gives the number of available processors

Type: Property of type Integer

Action: read

gevCallSolver ↵

Call GAMS solver on GMO model or control file

Type: Function returns Integer

Parameters

	Pointer	gmoptr
		Pointer to GAMS modeling object
	const ShortString	cntrfn
		Name of control file
	const ShortString	solvername
		Name of solver
	Integer	solvelink
		Solvelink option for solver called through gevCallSolver (see enumerated constants)
	Integer	Logging
		Log option for solver called through gevCallSolver (see enumerated constants)
	const ShortString	logfn
		Log file name
	const ShortString	statfn
		Status file name
	Double	reslim
		Resource limit
	Integer	iterlim
		Iteration limit
	Integer	domlim
		Domain violation limit
	Double	optcr
		Optimality criterion for relative gap
	Double	optca
		Optimality criterion for absolute gap
	var Pointer	jobhandle
		Handle to solver job in case of solvelink=gevSolveLinkAsyncGrid
	out ShortString	msg
		Message

gevCallSolverHandleCollect ↵

Collect solution from solver job if called with gevSolveLinkAsyncGrid (0 loaded, 1 unknown job handle, 2 job is running, 3 other error), delete instance

Type: Function returns Integer

Parameters

	var Pointer	jobhandle
		Handle to solver job in case of solvelink=gevSolveLinkAsyncGrid
	Pointer	gmoptr
		Pointer to GAMS modeling object

gevCallSolverHandleDelete ↵

Delete instance of solver job if called with gevSolveLinkAsyncGrid (0 deleted, 1 unknown job handle, 2 deletion failed)

Type: Function returns Integer

Parameters

	var Pointer	jobhandle
		Handle to solver job in case of solvelink=gevSolveLinkAsyncGrid

gevCallSolverHandleStatus ↵

Check status of solver job if called with gevSolveLinkAsyncGrid (0 job is done, 1 unknown job handle, 2 job is running)

Type: Function returns Integer

Parameters

	Pointer	jobhandle
		Handle to solver job in case of solvelink=gevSolveLinkAsyncGrid

gevCallSolverNextGridDir ↵

Creates grid directory for next gevCallSolver call and returns name (if called with gevSolveLinkAsyncGrid or gevSolveLinkAsyncSimulate)

Type: Function returns ShortString

gevCapabilityCheck ↵

Check if solver is capable to handle model type given

Type: Function returns Integer

Parameters

	Integer	modeltype
		Modeltype
	const ShortString	solvername
		Name of solver
	var Boolean	capable
		Flag whether solver is capable or not

gevCompleteEnvironment ↵

Complete initialization of environment

Type: Procedure

Parameters

	Pointer	palg
		Pointer to ALGX structure (GAMS Internal)
	Pointer	ivec
		Array of integer options
	Pointer	rvec
		Array of real/double options
	Pointer	svec
		Array of string options

gevDuplicateScratchDir ↵

Duplicates a scratch directory and points to read only files in source scratch directory

Type: Function returns Integer

Parameters

	const ShortString	scrdir
		Scratch directory
	const ShortString	logfn
		Log file name
	out ShortString	cntrfn
		Name of control file

gevEvalJacLegacy ↵

Legacy Jacobian Evaluation: Evaluate row and store in Jacobian structure

Type: Function returns Integer

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Integer	si
		Solve index for row i
	PDoubleArray	x
		Input values for variables
	var Double	f
		Function value
	PDoubleArray	jac
		Array to store the gradients
	var Integer	domviol
		Domain violations
	var Integer	njacsupd
		Number of Jacobian elements updated

gevEvalJacLegacyX ↵

Legacy Jacobian Evaluation: Evaluate set of rows and store in Jacobian structure

Type: Function returns Integer

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Integer	cnt
		count
	PLongIntArray	rowidx
		Vector of row indicies
	PDoubleArray	x
		Input values for variables
	PDoubleArray	fvec
		Vector of function values
	PDoubleArray	jac
		Array to store the gradients
	var Integer	domviol
		Domain violations
	var Integer	njacsupd
		Number of Jacobian elements updated

gevEvalNewPointLegacy ↵

Legacy Jacobian Evaluation: Set new point and do point copy magic

Type: Function returns Integer

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	PDoubleArray	x
		Input values for variables

gevFreeJacLegacy ↵

Legacy Jacobian Evaluation: Free row wise Jacobian structure

Type: Procedure

Parameters

	var Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation

gevGetALGX ↵

Pass pointer to ALGX structure

Type: Function returns Pointer

gevGetAnchor ↵

Get anchor line for log (points to file and is clickable in GAMS IDE)

Type: Function returns ShortString

Parameters

	const ShortString	s
		String

gevGetCurrentSolver ↵

Name of the select solver

Type: Function returns ShortString

Parameters

	Pointer	gmoptr
		Pointer to GAMS modeling object

gevGetDblOpt ↵

Get double valued option (see enumerated constants)

Type: Function returns Double

Parameters

	const ShortString	optname
		Name of option (see enumerated constants)

gevGetIntOpt ↵

Get integer valued option (see enumerated constants)

Type: Function returns Integer

Parameters

	const ShortString	optname
		Name of option (see enumerated constants)

gevGetLShandle ↵

Returns handle to last log and status stream stored by gevSwitchLogStat (Workaround for problem with vptr in Python)

Type: Function returns Pointer

gevGetScratchName ↵

Get scratch file name plus scratch extension including path of scratch directory

Type: Function returns ShortString

Parameters

	const ShortString	s
		String

gevGetSlvExeInfo ↵

Name of solver executable

Type: Function returns Integer

Parameters

	const ShortString	solvername
		Name of solver
	out ShortString	exename
		Name of solver executable

gevGetSlvLibInfo ↵

Solver library name, prefix, and API version

Type: Function returns Integer

Parameters

	const ShortString	solvername
		Name of solver
	out ShortString	libname
		Name of solver library
	out ShortString	prefix
		Prefix of solver
	out Integer	ifversion
		Version of solver interface

gevGetSolver ↵

Name of the solver chosen for modeltype (if non is chosen, it is the default)

Type: Function returns ShortString

Parameters

	Integer	modeltype
		Modeltype

gevGetSolverDefault ↵

Name of the default solver for modeltype

Type: Function returns ShortString

Parameters

	Integer	modeltype
		Modeltype

gevGetStrOpt ↵

Get string valued option (see enumerated constants)

Type: Function returns ShortString

Parameters

	const ShortString	optname
		Name of option (see enumerated constants)

gevId2Solver ↵

Solver name

Type: Function returns ShortString

Parameters

	Integer	solverid
		Internal ID of solver

gevInitEnvironmentLegacy ↵

Initialization in legacy mode (from control file)

Type: Function returns Integer

Parameters

	const ShortString	cntrfn
		Name of control file

gevInitJacLegacy ↵

Legacy Jacobian Evaluation: Initialize row wise Jacobian structure

Type: Function returns Integer

Parameters

	var Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Pointer	gmoptr
		Pointer to GAMS modeling object

gevLog ↵

Send string to log stream

Type: Procedure

Parameters

	const ShortString	s
		String

gevLogPChar ↵

Send PChar to log stream, no newline added

Type: Procedure

Parameters

	const PAnsiChar	p
		Pointer to array of characters

gevLogStat ↵

Send string to log and status streams and copy to listing file

Type: Procedure

Parameters

	const ShortString	s
		String

gevLogStatFlush ↵

Flush status streams (does not work with callback)

Type: Procedure

gevLogStatNoC ↵

Send string to log and status streams

Type: Procedure

Parameters

	const ShortString	s
		String

gevLogStatPChar ↵

Send string to log and status streams, no newline added

Type: Procedure

Parameters

	const PAnsiChar	p
		Pointer to array of characters

gevLSTAnchor ↵

Put a line to log that points to the current lst line"

Type: Procedure

Parameters

	const ShortString	s
		String

gevMIPReport ↵

Print MIP report to log and lst

Type: Procedure

Parameters

	Pointer	gmoptr
		Pointer to GAMS modeling object
	Double	fixobj
	Integer	fixiter
	Double	agap
	Double	rgap

gevNextNLLegacy ↵

Legacy Jacobian Evaluation: Provide next nonlinear row, start with M

Type: Function returns Integer

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Integer	si
		Solve index for row i

gevNumSolvers ↵

Number of solvers in the system

Type: Function returns Integer

gevRegisterWriteCallback ↵

Register callback for log and status streams

Type: Procedure

Parameters

	Tgevlswrite	lsw
		Procedure (const msg : ShortString, mode : Integer, usrmem : Pointer )
		Pointer to callback for log and status streams
	const Boolean	logenabled
		Flag to enable log or not
	Pointer	usrmem
		User memory

gevRestoreLogStat ↵

Restore log status stream settings

Type: Function returns Boolean

Parameters

	var Pointer	lshandle
		Log and status handle for later restoring

gevRestoreLogStatRewrite ↵

Restore log status stream settings but never append to former log

Type: Function returns Boolean

Parameters

	var Pointer	lshandle
		Log and status handle for later restoring

gevRowGms2SlvLegacy ↵

Legacy Jacobian Evaluation: Provide permuted row index

Type: Function returns Integer

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Integer	si
		Solve index for row i

gevSetColRowPermLegacy ↵

Legacy Jacobian Evaluation: Set column and row permutation GAMS to solver

Type: Procedure

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Integer	n
		Number of variables
	PLongIntArray	cgms2slv
		GAMS to solver permutation of columns
	Integer	m
		Number of constraints
	PLongIntArray	rgms2slv
		GAMS to solver permutation of rows

gevSetDblOpt ↵

Set double valued option (see enumerated constants)

Type: Procedure

Parameters

	const ShortString	optname
		Name of option (see enumerated constants)
	Double	rval
		Real/Double value

gevSetIntOpt ↵

Set integer valued option (see enumerated constants)

Type: Procedure

Parameters

	const ShortString	optname
		Name of option (see enumerated constants)
	Integer	ival
		Integer value

gevSetJacPermLegacy ↵

Legacy Jacobian Evaluation: Set Jacobian permutation GAMS to solver

Type: Procedure

Parameters

	Pointer	evalptr
		Pointer to structure for legacy Jacobian evaluation
	Integer	njacs
		Number of Jacobian elements in jacs and jgms2slv arrays
	PLongIntArray	jacs
		Array of original indices of Jacobian elements (1-based), length njacs
	PLongIntArray	jgms2slv
		GAMS to solver permutation of Jacobian elements, length njacs

gevSetStrOpt ↵

Set string valued option (see enumerated constants)

Type: Procedure

Parameters

	const ShortString	optname
		Name of option (see enumerated constants)
	const ShortString	sval
		String value

gevSolver2Id ↵

Internal ID of solver, 0 for failure

Type: Function returns Integer

Parameters

	const ShortString	solvername
		Name of solver

gevSolverVisibility ↵

Provide information if solver is hidden

Type: Function returns Integer

Parameters

	const ShortString	solvername
		Name of solver
	var Boolean	hidden
	var Boolean	defaultok

gevStat ↵

Send string to status stream

Type: Procedure

Parameters

	const ShortString	s
		String

gevStatA ↵

GAMS internal status stream operation {=A}

Type: Procedure

Parameters

	const ShortString	s
		String

gevStatAddE ↵

GAMS internal status stream operation {=5}

Type: Procedure

Parameters

	Integer	mi
		Index or constraint
	const ShortString	s
		String

gevStatAddJ ↵

GAMS internal status stream operation {=7}

Type: Procedure

Parameters

	Integer	mi
		Index or constraint
	Integer	mj
		Index or variable
	const ShortString	s
		String

gevStatAddV ↵

GAMS internal status stream operation {=6}

Type: Procedure

Parameters

	Integer	mj
		Index or variable
	const ShortString	s
		String

gevStatAppend ↵

Append status file to current status file

Type: Function returns Integer

Parameters

	const ShortString	statfn
		Status file name
	out ShortString	msg
		Message

gevStatAudit ↵

GAMS internal status stream operation {=0}

Type: Procedure

Parameters

	const ShortString	s
		String

gevStatB ↵

GAMS internal status stream operation {=B}

Type: Procedure

Parameters

	const ShortString	s
		String

gevStatC ↵

Send string to status and copy to listing file

Type: Procedure

Parameters

	const ShortString	s
		String

gevStatCoff ↵

GAMS internal status stream operation {=2}

Type: Procedure

gevStatCon ↵

GAMS internal status stream operation {=1}

Type: Procedure

gevStatE ↵

GAMS internal status stream operation {=E}

Type: Procedure

Parameters

	const ShortString	s
		String
	Integer	mi
		Index or constraint
	const ShortString	s2
		String

gevStatEdit ↵

GAMS internal status stream operation {=9}

Type: Procedure

Parameters

	AnsiChar	c
		Character

gevStatEject ↵

GAMS internal status stream operation {=8}

Type: Procedure

gevStatEOF ↵

GAMS internal status stream operation {=3}

Type: Procedure

gevStatPChar ↵

Send PChar to status stream, no newline added

Type: Procedure

Parameters

	const PAnsiChar	p
		Pointer to array of characters

gevStatSysout ↵

GAMS internal status stream operation {=4}

Type: Procedure

gevStatT ↵

GAMS internal status stream operation {=T}

Type: Procedure

gevStatV ↵

GAMS internal status stream operation {=V}

Type: Procedure

Parameters

	const ShortString	s
		String
	Integer	mj
		Index or variable
	const ShortString	s2
		String

gevSwitchLogStat ↵

Switch log and status streams to another file or callback

Type: Function returns Boolean

Parameters

	Integer	lo
		logoption (0..3)
	const ShortString	logfn
		Log file name
	const Boolean	logappend
		Flag whether to append to log stream or not
	const ShortString	statfn
		Status file name
	const Boolean	statappend
		Flag whether to append to status stream or not
	Tgevlswrite	lsw
		Procedure (const msg : ShortString, mode : Integer, usrmem : Pointer )
		Pointer to callback for log and status streams
	Pointer	usrmem
		User memory
	var Pointer	lshandle
		Log and status handle for later restoring

gevSwitchLogStatEx ↵

Switch log and status streams to another file or callback

Type: Function returns Boolean

Parameters

	Integer	lo
		logoption (0..3)
	const ShortString	logfn
		Log file name
	const Boolean	logappend
		Flag whether to append to log stream or not
	const ShortString	statfn
		Status file name
	const Boolean	statappend
		Flag whether to append to status stream or not
	Tgevlswrite	lsw
		Procedure (const msg : ShortString, mode : Integer, usrmem : Pointer )
		Pointer to callback for log and status streams
	Pointer	usrmem
		User memory
	var Pointer	lshandle
		Log and status handle for later restoring
	const Boolean	doStack
		Select stacking mode, where a new callback is stacked over the current settings instead of undoing them

gevSynchronizeOpt ↵

Copy environment options to passed in option object

Type: Procedure

Parameters

	Pointer	optptr
		Pointer to option object

gevTerminateClear ↵

Resets the interrupt counter

Type: Procedure

gevTerminateGet ↵

Check if one should interrupt

Type: Function returns Boolean

gevTerminateGetHandler ↵

Get installed termination handler

Type: Procedure

Parameters

	var Pointer	intr
		Pointer to some memory indicating an interrupt
	var Pointer	ehdler
		Pointer to interrupt handler

gevTerminateInstall ↵

Installs an already registered interrupt handler

Type: Procedure

gevTerminateRaise ↵

Increases the interrupt counter

Type: Procedure

gevTerminateSet ↵

Register a pointer to some memory that will indicate an interrupt and the pointer to a interrupt handler and installs it

Type: Procedure

Parameters

	Pointer	intr
		Pointer to some memory indicating an interrupt
	Pointer	ehdler
		Pointer to interrupt handler

gevTerminateUninstall ↵

Uninstalls an already registered interrupt handler

Type: Procedure

gevTimeDiff ↵

Time difference in seconds since creation or last call to gevTimeDiff

Type: Function returns Double

gevTimeDiffStart ↵

Time difference in seconds since creation of object

Type: Function returns Double

gevTimeJNow ↵

GAMS Julian time

Type: Function returns Double

gevTimeSetStart ↵

Reset timer (overwrites time stamp from creation)

Type: Procedure

gevWriteModelInstance ↵

Creates model instance file

Type: Function returns Integer

Parameters

	const ShortString	mifn
		Model instance file name
	Pointer	gmoptr
		Pointer to GAMS modeling object
	var Integer	nlcodelen
		Length of nonlinear code

Functions, Procedures, and Properties

Logging

GAMS Options

Other

Deprecated

GAMS Options

GAMS Solvers

Initialization

Interrupt

Logging

Other

Timing

Enumerated Constants

Definitions

gevNSolves ↵

gevSkipIOLegacySet ↵

gevThreads ↵

gevCallSolver ↵

gevCallSolverHandleCollect ↵

gevCallSolverHandleDelete ↵

gevCallSolverHandleStatus ↵

gevCallSolverNextGridDir ↵

gevCapabilityCheck ↵

gevCompleteEnvironment ↵

gevDuplicateScratchDir ↵

gevEvalJacLegacy ↵

gevEvalJacLegacyX ↵

gevEvalNewPointLegacy ↵

gevFreeJacLegacy ↵

gevGetALGX ↵

gevGetAnchor ↵

gevGetCurrentSolver ↵

gevGetDblOpt ↵

gevGetIntOpt ↵

gevGetLShandle ↵

gevGetScratchName ↵

gevGetSlvExeInfo ↵

gevGetSlvLibInfo ↵

gevGetSolver ↵

gevGetSolverDefault ↵

gevGetStrOpt ↵

gevId2Solver ↵

gevInitEnvironmentLegacy ↵

gevInitJacLegacy ↵

gevLog ↵

gevLogPChar ↵

gevLogStat ↵

gevLogStatFlush ↵

gevLogStatNoC ↵

gevLogStatPChar ↵

gevLSTAnchor ↵

gevMIPReport ↵

gevNextNLLegacy ↵

gevNumSolvers ↵

gevRegisterWriteCallback ↵

gevRestoreLogStat ↵

gevRestoreLogStatRewrite ↵

gevRowGms2SlvLegacy ↵

gevSetColRowPermLegacy ↵

gevSetDblOpt ↵

gevSetIntOpt ↵

gevSetJacPermLegacy ↵

gevSetStrOpt ↵

gevSolver2Id ↵

gevSolverVisibility ↵

gevStat ↵

gevStatA ↵

gevStatAddE ↵

gevStatAddJ ↵

gevStatAddV ↵

gevStatAppend ↵

gevStatAudit ↵

gevStatB ↵

gevStatC ↵

gevStatCoff ↵

gevStatCon ↵

gevStatE ↵

gevStatEdit ↵

gevStatEject ↵

gevStatEOF ↵