Class BitVectorVariable

java.lang.Object

com.ibm.wala.util.graph.impl.NodeWithNumber

com.ibm.wala.fixpoint.AbstractVariable<BitVectorVariable>

com.ibm.wala.fixpoint.BitVectorVariable

All Implemented Interfaces:

IVariable<BitVectorVariable>, INodeWithNumber

public class BitVectorVariable
extends AbstractVariable<BitVectorVariable>

A bit vector variable for dataflow analysis.

Constructor Summary

Constructors

Constructor	Description
BitVectorVariable()

Method Summary

Modifier and Type	Method	Description
void	addAll(BitVectorVariable other)	Add all the bits from other to this bit vector
void	addAll(BitVector B)	Add all the bits in B to this bit vector
void	clear(int i)
void	copyState(@Nullable BitVectorVariable other)	Set this variable to have the same state as another one
boolean	get(int b)	Is a particular bit set?
@Nullable IntSet	getValue()
int	populationCount()
boolean	sameValue(BitVectorVariable other)	Does this variable have the same value as another?
void	set(int b)	Set a particular bit
String	toString()

Methods inherited from class AbstractVariable

equals, getOrderNumber, hashCode, nextHash, setOrderNumber

Methods inherited from class NodeWithNumber

getGraphNodeId, setGraphNodeId

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface INodeWithNumber

getGraphNodeId, setGraphNodeId

Constructor Details

BitVectorVariable

public BitVectorVariable()

Method Details

copyState

public void copyState(@Nullable BitVectorVariable other)

Description copied from interface: IVariable

Set this variable to have the same state as another one

See Also:

• IVariable.copyState(com.ibm.wala.fixpoint.IVariable)

addAll

public void addAll(BitVector B)

Add all the bits in B to this bit vector

addAll

public void addAll(BitVectorVariable other)

Add all the bits from other to this bit vector

sameValue

public boolean sameValue(BitVectorVariable other)

Does this variable have the same value as another?

toString

public String toString()

Overrides:

toString in class Object

set

public void set(int b)

Set a particular bit

Parameters:

b - the bit to set

get

public boolean get(int b)

Is a particular bit set?

Parameters:

b - the bit to check

getValue

public @Nullable IntSet getValue()

Returns:

the value of this variable as a bit vector ... null if the bit vector is empty.

clear

public void clear(int i)

populationCount

public int populationCount()