#include <constraint_solver.h>

Inheritance diagram for operations_research::IntExpr:

Public Member Functions
	IntExpr (Solver *const s)

	IntExpr (const IntExpr &)=delete
	This type is neither copyable nor movable.

IntExpr &	operator= (const IntExpr &)=delete

	~IntExpr () override

virtual int64_t	Min () const =0

virtual void	SetMin (int64_t m)=0

virtual int64_t	Max () const =0

virtual void	SetMax (int64_t m)=0

virtual void	Range (int64_t l, int64_t u)

virtual void	SetRange (int64_t l, int64_t u)
	This method sets both the min and the max of the expression.

virtual void	SetValue (int64_t v)
	This method sets the value of the expression.

virtual bool	Bound () const
	Returns true if the min and the max of the expression are equal.

virtual bool	IsVar () const
	Returns true if the expression is indeed a variable.

virtual IntVar *	Var ()=0
	Creates a variable from the expression.

IntVar *	VarWithName (const std::string &name)
	-------— IntExpr -------—

virtual void	WhenRange (Demon *d)=0
	Attach a demon that will watch the min or the max of the expression.

void	WhenRange (Solver::Closure closure)
	Attach a demon that will watch the min or the max of the expression.

void	WhenRange (Solver::Action action)
	Attach a demon that will watch the min or the max of the expression.

virtual void	Accept (ModelVisitor *visitor) const
	Accepts the given visitor.

Public Member Functions inherited from operations_research::PropagationBaseObject
	PropagationBaseObject (Solver *const s)

	PropagationBaseObject (const PropagationBaseObject &)=delete
	This type is neither copyable nor movable.

PropagationBaseObject &	operator= (const PropagationBaseObject &)=delete

	~PropagationBaseObject () override

std::string	DebugString () const override

Solver *	solver () const

void	FreezeQueue ()

void	UnfreezeQueue ()

void	EnqueueDelayedDemon (Demon *const d)

void	EnqueueVar (Demon *const d)

void	ExecuteAll (const SimpleRevFIFO< Demon * > &demons)

void	EnqueueAll (const SimpleRevFIFO< Demon * > &demons)

void	set_action_on_fail (Solver::Action a)

void	reset_action_on_fail ()
	This method clears the failure callback.

void	set_variable_to_clean_on_fail (IntVar *v)
	Shortcut for variable cleaner.

virtual std::string	name () const
	Object naming.

void	set_name (absl::string_view name)

bool	HasName () const
	Returns whether the object has been named or not.

virtual std::string	BaseName () const
	Returns a base name for automatic naming.

Public Member Functions inherited from operations_research::BaseObject
	BaseObject ()

	BaseObject (const BaseObject &)=delete
	This type is neither copyable nor movable.

BaseObject &	operator= (const BaseObject &)=delete

virtual	~BaseObject ()

Detailed Description

The class IntExpr is the base of all integer expressions in constraint programming. It contains the basic protocol for an expression:

setting and modifying its bound
querying if it is bound
listening to events modifying its bounds
casting it into a variable (instance of IntVar)

Definition at line 4112 of file constraint_solver.h.

Constructor & Destructor Documentation

◆ IntExpr() [1/2]

operations_research::IntExpr::IntExpr ( Solver *const s )

inlineexplicit

Definition at line 4114 of file constraint_solver.h.

◆ IntExpr() [2/2]

operations_research::IntExpr::IntExpr ( const IntExpr & )

delete

This type is neither copyable nor movable.

◆ ~IntExpr()

operations_research::IntExpr::~IntExpr ( )

inlineoverride

Definition at line 4121 of file constraint_solver.h.

Member Function Documentation

◆ Accept()

void operations_research::IntExpr::Accept ( ModelVisitor * visitor ) const

virtual

Accepts the given visitor.

--— Class IntExpr --—

Reimplemented in operations_research::IntVar, and operations_research::PiecewiseLinearExpr.

Definition at line 3324 of file constraint_solver.cc.

◆ Bound()

virtual bool operations_research::IntExpr::Bound ( ) const

inlinevirtual

Returns true if the min and the max of the expression are equal.

Reimplemented in operations_research::BooleanVar.

Definition at line 4144 of file constraint_solver.h.

◆ IsVar()

virtual bool operations_research::IntExpr::IsVar ( ) const

inlinevirtual

Returns true if the expression is indeed a variable.

Reimplemented in operations_research::IntVar.

Definition at line 4147 of file constraint_solver.h.

◆ Max()

virtual int64_t operations_research::IntExpr::Max ( ) const

pure virtual

Implemented in operations_research::BooleanVar, and operations_research::PiecewiseLinearExpr.

◆ Min()

virtual int64_t operations_research::IntExpr::Min ( ) const

pure virtual

Implemented in operations_research::BooleanVar, and operations_research::PiecewiseLinearExpr.

◆ operator=()

IntExpr & operations_research::IntExpr::operator= ( const IntExpr & )

delete

◆ Range()

virtual void operations_research::IntExpr::Range	(	int64_t *	l,
		int64_t *	u )

inlinevirtual

By default calls Min() and Max(), but can be redefined when Min and Max code can be factorized.

Definition at line 4130 of file constraint_solver.h.

◆ SetMax()

virtual void operations_research::IntExpr::SetMax ( int64_t m )

pure virtual

Implemented in operations_research::BooleanVar, and operations_research::PiecewiseLinearExpr.

◆ SetMin()

virtual void operations_research::IntExpr::SetMin ( int64_t m )

pure virtual

Implemented in operations_research::BooleanVar, and operations_research::PiecewiseLinearExpr.

◆ SetRange()

virtual void operations_research::IntExpr::SetRange	(	int64_t	l,
		int64_t	u )

inlinevirtual

This method sets both the min and the max of the expression.

Reimplemented in operations_research::BooleanVar, and operations_research::PiecewiseLinearExpr.

Definition at line 4135 of file constraint_solver.h.

◆ SetValue()

virtual void operations_research::IntExpr::SetValue ( int64_t v )

inlinevirtual

This method sets the value of the expression.

Definition at line 4141 of file constraint_solver.h.

◆ Var()

virtual IntVar * operations_research::IntExpr::Var ( )

pure virtual

Creates a variable from the expression.

Implemented in operations_research::BaseIntExpr, and operations_research::IntVar.

◆ VarWithName()

IntVar * operations_research::IntExpr::VarWithName ( const std::string & name )

-------— IntExpr -------—

Creates a variable from the expression and set the name of the resulting var. If the expression is already a variable, then it will set the name of the expression, possibly overwriting it. This is just a shortcut to Var() followed by set_name().

Definition at line 54 of file expressions.cc.

◆ WhenRange() [1/3]

virtual void operations_research::IntExpr::WhenRange ( Demon * d )

pure virtual

Attach a demon that will watch the min or the max of the expression.

Implemented in operations_research::BooleanVar, and operations_research::PiecewiseLinearExpr.

◆ WhenRange() [2/3]

void operations_research::IntExpr::WhenRange ( Solver::Action action )

inline

Attach a demon that will watch the min or the max of the expression.

Definition at line 4167 of file constraint_solver.h.

◆ WhenRange() [3/3]

void operations_research::IntExpr::WhenRange ( Solver::Closure closure )

inline

Attach a demon that will watch the min or the max of the expression.

Definition at line 4161 of file constraint_solver.h.

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

ortools/constraint_solver/constraint_solver.h
ortools/constraint_solver/constraint_solver.cc
ortools/constraint_solver/expressions.cc

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ IntExpr() [1/2]

◆ IntExpr() [2/2]

◆ ~IntExpr()

Member Function Documentation

◆ Accept()

◆ Bound()

◆ IsVar()

◆ Max()

◆ Min()

◆ operator=()

◆ Range()

◆ SetMax()

◆ SetMin()

◆ SetRange()

◆ SetValue()

◆ Var()

◆ VarWithName()

◆ WhenRange() [1/3]

◆ WhenRange() [2/3]

◆ WhenRange() [3/3]