Detailed Description

Definition at line 88 of file glpk_interface.cc.

Inheritance diagram for operations_research::GLPKInterface:

Public Member Functions
	GLPKInterface (MPSolver *solver, bool mip)
	~GLPKInterface () override
void	SetOptimizationDirection (bool maximize) override
MPSolver::ResultStatus	Solve (const MPSolverParameters &param) override
void	Reset () override
void	SetVariableBounds (int mpsolver_var_index, double lb, double ub) override
void	SetVariableInteger (int mpsolver_var_index, bool integer) override
void	SetConstraintBounds (int mpsolver_constraint_index, double lb, double ub) override
void	AddRowConstraint (MPConstraint *ct) override
void	AddVariable (MPVariable *var) override
void	SetCoefficient (MPConstraint constraint, const MPVariable variable, double new_value, double old_value) override
void	ClearConstraint (MPConstraint *constraint) override
void	SetObjectiveCoefficient (const MPVariable *variable, double coefficient) override
void	SetObjectiveOffset (double value) override
void	ClearObjective () override
int64_t	iterations () const override
int64_t	nodes () const override
MPSolver::BasisStatus	row_status (int constraint_index) const override
MPSolver::BasisStatus	column_status (int variable_index) const override
bool	CheckSolutionExists () const override
bool	IsContinuous () const override
bool	IsLP () const override
bool	IsMIP () const override
void	ExtractNewVariables () override
void	ExtractNewConstraints () override
void	ExtractObjective () override
std::string	SolverVersion () const override
void *	underlying_solver () override
double	ComputeExactConditionNumber () const override
Public Member Functions inherited from operations_research::MPSolverInterface
	MPSolverInterface (MPSolver *solver)
virtual	~MPSolverInterface ()
virtual bool	SupportsDirectlySolveProto (std::atomic< bool > *) const
virtual MPSolutionResponse	DirectlySolveProto (LazyMutableCopy< MPModelRequest >, std::atomic< bool > *)
virtual void	Write (const std::string &filename)
virtual bool	AddIndicatorConstraint (MPConstraint *const)
virtual void	BranchingPriorityChangedForVariable (int)
double	best_objective_bound () const
double	objective_value () const
bool	CheckSolutionIsSynchronized () const
bool	CheckSolutionIsSynchronizedAndExists () const
int	last_variable_index () const
bool	variable_is_extracted (int var_index) const
void	set_variable_as_extracted (int var_index, bool extracted)
bool	constraint_is_extracted (int ct_index) const
void	set_constraint_as_extracted (int ct_index, bool extracted)
bool	quiet () const
void	set_quiet (bool quiet_value)
MPSolver::ResultStatus	result_status () const
virtual void	SetStartingLpBasis (const std::vector< MPSolver::BasisStatus > &, const std::vector< MPSolver::BasisStatus > &)
virtual double	infinity ()
virtual bool	InterruptSolve ()
virtual bool	NextSolution ()
virtual void	SetCallback (MPCallback *)
virtual bool	SupportsCallbacks () const

Additional Inherited Members
Public Types inherited from operations_research::MPSolverInterface
enum	SynchronizationStatus { MUST_RELOAD , MODEL_SYNCHRONIZED , SOLUTION_SYNCHRONIZED }
Static Public Attributes inherited from operations_research::MPSolverInterface
static constexpr int64_t	kUnknownNumberOfIterations = -1
static constexpr int64_t	kUnknownNumberOfNodes = -1
Protected Member Functions inherited from operations_research::MPSolverInterface
void	ExtractModel ()
void	ResetExtractionInformation ()
void	InvalidateSolutionSynchronization ()
void	SetCommonParameters (const MPSolverParameters &param)
void	SetMIPParameters (const MPSolverParameters &param)
void	SetUnsupportedDoubleParam (MPSolverParameters::DoubleParam param)
virtual void	SetUnsupportedIntegerParam (MPSolverParameters::IntegerParam param)
void	SetDoubleParamToUnsupportedValue (MPSolverParameters::DoubleParam param, double value)
virtual void	SetIntegerParamToUnsupportedValue (MPSolverParameters::IntegerParam param, int value)
virtual absl::Status	SetNumThreads (int num_threads)
virtual bool	SetSolverSpecificParametersAsString (const std::string &parameters)
Protected Attributes inherited from operations_research::MPSolverInterface
MPSolver *const	solver_
SynchronizationStatus	sync_status_
MPSolver::ResultStatus	result_status_
bool	maximize_
int	last_constraint_index_
int	last_variable_index_
double	objective_value_
double	best_objective_bound_
bool	quiet_
Static Protected Attributes inherited from operations_research::MPSolverInterface
static const int	kDummyVariableIndex = 0

Constructor & Destructor Documentation

◆ GLPKInterface()

operations_research::GLPKInterface::GLPKInterface	(	MPSolver *	solver,
		bool	mip )

Definition at line 205 of file glpk_interface.cc.

◆ ~GLPKInterface()

operations_research::GLPKInterface::~GLPKInterface ( )

override

Definition at line 217 of file glpk_interface.cc.

Member Function Documentation

◆ AddRowConstraint()

void operations_research::GLPKInterface::AddRowConstraint ( MPConstraint * ct )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 365 of file glpk_interface.cc.

◆ AddVariable()

void operations_research::GLPKInterface::AddVariable ( MPVariable * var )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 369 of file glpk_interface.cc.

◆ CheckSolutionExists()

bool operations_research::GLPKInterface::CheckSolutionExists ( ) const

overridevirtual

Reimplemented from operations_research::MPSolverInterface.

Definition at line 708 of file glpk_interface.cc.

◆ ClearConstraint()

void operations_research::GLPKInterface::ClearConstraint ( MPConstraint * constraint )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 329 of file glpk_interface.cc.

◆ ClearObjective()

void operations_research::GLPKInterface::ClearObjective ( )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 350 of file glpk_interface.cc.

◆ column_status()

MPSolver::BasisStatus operations_research::GLPKInterface::column_status ( int variable_index ) const

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 700 of file glpk_interface.cc.

◆ ComputeExactConditionNumber()

double operations_research::GLPKInterface::ComputeExactConditionNumber ( ) const

overridevirtual

Reimplemented from operations_research::MPSolverInterface.

Definition at line 719 of file glpk_interface.cc.

◆ ExtractNewConstraints()

void operations_research::GLPKInterface::ExtractNewConstraints ( )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 438 of file glpk_interface.cc.

◆ ExtractNewVariables()

void operations_research::GLPKInterface::ExtractNewVariables ( )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 374 of file glpk_interface.cc.

◆ ExtractObjective()

void operations_research::GLPKInterface::ExtractObjective ( )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 499 of file glpk_interface.cc.

◆ IsContinuous()

bool operations_research::GLPKInterface::IsContinuous ( ) const

inlineoverridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 144 of file glpk_interface.cc.

◆ IsLP()

bool operations_research::GLPKInterface::IsLP ( ) const

inlineoverridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 145 of file glpk_interface.cc.

◆ IsMIP()

bool operations_research::GLPKInterface::IsMIP ( ) const

inlineoverridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 146 of file glpk_interface.cc.

◆ iterations()

int64_t operations_research::GLPKInterface::iterations ( ) const

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 667 of file glpk_interface.cc.

◆ nodes()

int64_t operations_research::GLPKInterface::nodes ( ) const

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 682 of file glpk_interface.cc.

◆ Reset()

void operations_research::GLPKInterface::Reset ( )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 223 of file glpk_interface.cc.

◆ row_status()

MPSolver::BasisStatus operations_research::GLPKInterface::row_status ( int constraint_index ) const

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 692 of file glpk_interface.cc.

◆ SetCoefficient()

void operations_research::GLPKInterface::SetCoefficient	(	MPConstraint *	constraint,
		const MPVariable *	variable,
		double	new_value,
		double	old_value )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 310 of file glpk_interface.cc.

◆ SetConstraintBounds()

void operations_research::GLPKInterface::SetConstraintBounds	(	int	mpsolver_constraint_index,
		double	lb,
		double	ub )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 281 of file glpk_interface.cc.

◆ SetObjectiveCoefficient()

void operations_research::GLPKInterface::SetObjectiveCoefficient	(	const MPVariable *	variable,
		double	coefficient )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 339 of file glpk_interface.cc.

◆ SetObjectiveOffset()

void operations_research::GLPKInterface::SetObjectiveOffset ( double value )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 345 of file glpk_interface.cc.

◆ SetOptimizationDirection()

void operations_research::GLPKInterface::SetOptimizationDirection ( bool maximize )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 235 of file glpk_interface.cc.

◆ SetVariableBounds()

void operations_research::GLPKInterface::SetVariableBounds	(	int	mpsolver_var_index,
		double	lb,
		double	ub )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 240 of file glpk_interface.cc.

◆ SetVariableInteger()

void operations_research::GLPKInterface::SetVariableInteger	(	int	mpsolver_var_index,
		bool	integer )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 268 of file glpk_interface.cc.

◆ Solve()

MPSolver::ResultStatus operations_research::GLPKInterface::Solve ( const MPSolverParameters & param )

overridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 511 of file glpk_interface.cc.

◆ SolverVersion()

std::string operations_research::GLPKInterface::SolverVersion ( ) const

inlineoverridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 152 of file glpk_interface.cc.

◆ underlying_solver()

void * operations_research::GLPKInterface::underlying_solver ( )

inlineoverridevirtual

Implements operations_research::MPSolverInterface.

Definition at line 156 of file glpk_interface.cc.

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

ortools/linear_solver/glpk_interface.cc

Detailed Description

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ GLPKInterface()

◆ ~GLPKInterface()

Member Function Documentation

◆ AddRowConstraint()

◆ AddVariable()

◆ CheckSolutionExists()

◆ ClearConstraint()

◆ ClearObjective()

◆ column_status()

◆ ComputeExactConditionNumber()

◆ ExtractNewConstraints()

◆ ExtractNewVariables()

◆ ExtractObjective()

◆ IsContinuous()

◆ IsLP()

◆ IsMIP()

◆ iterations()

◆ nodes()

◆ Reset()

◆ row_status()

◆ SetCoefficient()

◆ SetConstraintBounds()

◆ SetObjectiveCoefficient()

◆ SetObjectiveOffset()

◆ SetOptimizationDirection()

◆ SetVariableBounds()

◆ SetVariableInteger()

◆ Solve()

◆ SolverVersion()

◆ underlying_solver()