Detailed Description

This class represents a reversible bitset. This class is useful to maintain supports.

Definition at line 438 of file constraint_solveri.h.

#include <constraint_solveri.h>

Inheritance diagram for operations_research::RevBitSet:

Public Member Functions
	RevBitSet (int64_t size)
	-------— RevBitSet -------—
	~RevBitSet ()
void	SetToOne (Solver *solver, int64_t index)
	Sets the 'index' bit.
void	SetToZero (Solver *solver, int64_t index)
	Erases the 'index' bit.
bool	IsSet (int64_t index) const
	Returns whether the 'index' bit is set.
int64_t	Cardinality () const
	Returns the number of bits set to one.
bool	IsCardinalityZero () const
	Is bitset null?
bool	IsCardinalityOne () const
	Does it contains only one bit set?
int64_t	GetFirstBit (int start) const
void	ClearAll (Solver *solver)
	Cleans all bits.

Friends
class	RevBitMatrix

Constructor & Destructor Documentation

◆ RevBitSet()

operations_research::RevBitSet::RevBitSet ( int64_t size )

explicit

-------— RevBitSet -------—

Definition at line 62 of file utilities.cc.

◆ ~RevBitSet()

operations_research::RevBitSet::~RevBitSet ( )

Definition at line 72 of file utilities.cc.

Member Function Documentation

◆ Cardinality()

int64_t operations_research::RevBitSet::Cardinality ( ) const

Returns the number of bits set to one.

Definition at line 113 of file utilities.cc.

◆ ClearAll()

void operations_research::RevBitSet::ClearAll ( Solver * solver )

Cleans all bits.

Definition at line 152 of file utilities.cc.

◆ GetFirstBit()

int64_t operations_research::RevBitSet::GetFirstBit ( int start ) const

Gets the index of the first bit set starting from start. It returns -1 if the bitset is empty after start.

Definition at line 148 of file utilities.cc.

◆ IsCardinalityOne()

bool operations_research::RevBitSet::IsCardinalityOne ( ) const

Does it contains only one bit set?

Definition at line 130 of file utilities.cc.

◆ IsCardinalityZero()

bool operations_research::RevBitSet::IsCardinalityZero ( ) const

Is bitset null?

Definition at line 121 of file utilities.cc.

◆ IsSet()

bool operations_research::RevBitSet::IsSet ( int64_t index ) const

Returns whether the 'index' bit is set.

Definition at line 107 of file utilities.cc.

◆ SetToOne()

void operations_research::RevBitSet::SetToOne	(	Solver *	solver,
		int64_t	index )

Sets the 'index' bit.

Definition at line 85 of file utilities.cc.

◆ SetToZero()

void operations_research::RevBitSet::SetToZero	(	Solver *	solver,
		int64_t	index )

Erases the 'index' bit.

Definition at line 96 of file utilities.cc.

◆ RevBitMatrix

friend class RevBitMatrix

friend

Definition at line 461 of file constraint_solveri.h.

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

ortools/constraint_solver/constraint_solveri.h
ortools/constraint_solver/utilities.cc