inviwo::BitSet Class Reference

represents a bitset based on roaring bitmaps provided by the CRoaring library More...

#include <bitset.h>

Inheritance diagram for inviwo::BitSet:

Classes
class	BitSetIterator

Public Types
template<typename T>
using	iterator_category = typename std::iterator_traits<T>::iterator_category
template<class T>
using	is_iterator = util::is_detected<iterator_category, T>

Public Member Functions
	BitSet (std::span< const uint32_t > span)
	BitSet (const std::vector< bool > &v)
template<typename InputIt, class = std::enable_if_t<is_iterator<InputIt>::value>>
	BitSet (InputIt begin, InputIt end)
template<typename... Ts, class = std::enable_if_t< std::conjunction<std::is_convertible<Ts, uint32_t>...>::value>>
	BitSet (Ts &&... values)
	BitSet (const BitSet &rhs)
	BitSet (BitSet &&rhs) noexcept
BitSet &	operator= (const BitSet &rhs)
BitSet &	operator= (BitSet &&rhs) noexcept
BitSetIterator	begin () const
BitSetIterator	end () const
uint32_t	cardinality () const
size_t	size () const
bool	empty () const
void	clear ()
bool	isSubsetOf (const BitSet &b) const
bool	isStrictSubsetOf (const BitSet &b) const
bool	set (const BitSet &b)
void	add (std::span< const uint32_t > span)
void	add (const std::vector< bool > &v)
template<typename InputIt, class = typename std::enable_if_t<is_iterator<InputIt>::value>>
void	add (InputIt begin, InputIt end)
template<typename... Ts, typename = std::enable_if_t<std::conjunction_v<std::is_convertible<Ts, uint32_t>...>>>
void	add (Ts &&... values)
bool	addChecked (uint32_t v)
void	addRange (uint32_t min, uint32_t max)
void	addRangeClosed (uint32_t min, uint32_t max)
void	remove (uint32_t v)
bool	removeChecked (uint32_t v)
uint32_t	max () const
uint32_t	min () const
bool	contains (uint32_t v) const
bool	containsRange (uint32_t min, uint32_t max) const
void	flip (uint32_t v)
void	flipRange (uint32_t min, uint32_t max)
size_t	rank (uint32_t v) const
bool	operator== (const BitSet &b) const
bool	operator!= (const BitSet &b) const
bool	intersect (const BitSet &b) const
size_t	orCardinality (const BitSet &b) const
size_t	andCardinality (const BitSet &b) const
size_t	andNotCardinality (const BitSet &b) const
size_t	xorCardinality (const BitSet &b) const
double	jaccardIndex (const BitSet &b) const
BitSet &	operator&= (const BitSet &b)
BitSet	operator& (const BitSet &b) const
BitSet &	operator-= (const BitSet &b)
BitSet	operator- (const BitSet &b) const
BitSet &	operator|= (const BitSet &b)
BitSet	operator| (const BitSet &b) const
BitSet &	operator^= (const BitSet &b)
BitSet	operator^ (const BitSet &b) const
std::vector< uint32_t >	toVector () const
std::string	toString () const
size_t	getSizeInBytes () const
void	writeData (std::ostream &os) const
void	readData (std::istream &is)
void	optimize ()
void	removeRLECompression ()
size_t	shrinkToFit ()
virtual void	serialize (Serializer &s) const override
virtual void	deserialize (Deserializer &d) override

Static Public Member Functions
static BitSet	fastUnion (std::span< const BitSet * > bitsets)

Friends
std::ostream &	operator<< (std::ostream &os, const BitSet &b)

Detailed Description

represents a bitset based on roaring bitmaps provided by the CRoaring library

Member Function Documentation

add()

template<typename... Ts, typename = std::enable_if_t<std::conjunction_v<std::is_convertible<Ts, uint32_t>...>>>

void inviwo::BitSet::add ( Ts &&... values )

inline

Add value(s) values to the bitset

Parameters

values

one or more values

addChecked()

bool inviwo::BitSet::addChecked

(

uint32_t

v

)

Add value v to the bitset and return true on success

Parameters

v

value

Returns

true if v was added, false if it already existed in the bitset

addRange()

void inviwo::BitSet::addRange	(	uint32_t	min,
		uint32_t	max )

Adds all values from the open range [min,max)

Parameters

min	lower bound
max	upper bound (not included)

addRangeClosed()

void inviwo::BitSet::addRangeClosed	(	uint32_t	min,
		uint32_t	max )

Adds all values from the closed range [min,max]

Parameters

min	lower bound
max	upper bound (included)

andCardinality()

size_t inviwo::BitSet::andCardinality

(

const BitSet &

b

)

const

Compute the cardinality of the intersection between this bitset and b

andNotCardinality()

size_t inviwo::BitSet::andNotCardinality

(

const BitSet &

b

)

const

Compute the cardinality of the difference between this bitset and b

cardinality()

uint32_t inviwo::BitSet::cardinality

(

)

const

Return the number of elements the bitset holds

See also

size()

contains()

bool inviwo::BitSet::contains

(

uint32_t

v

)

const

Checks whether v is part of the bitset

Parameters

v	value to check

Returns

true if v exists

containsRange()

bool inviwo::BitSet::containsRange	(	uint32_t	min,
		uint32_t	max ) const

Checks whether the open range [min, max) is part of the bitset

Parameters

min	lower bound
max	upper bound

Returns

true if [min, max) exists

deserialize()

virtual void inviwo::BitSet::deserialize ( Deserializer & d )

overridevirtual

Implements inviwo::Serializable.

fastUnion()

BitSet inviwo::BitSet::fastUnion ( std::span< const BitSet * > bitsets )

static

compute the union of multiple bitsets

flip()

void inviwo::BitSet::flip

(

uint32_t

v

)

Flip the value v, that is add it to the bitset if not part of it, otherwise remove it

Parameters

v	value to flip

flipRange()

void inviwo::BitSet::flipRange	(	uint32_t	min,
		uint32_t	max )

Flip all bits in the open range [min, max)

getSizeInBytes()

size_t inviwo::BitSet::getSizeInBytes

(

)

const

Return the number of bytes required to serialize the bitset

See also

optimize(), shrinkToFit()

intersect()

bool inviwo::BitSet::intersect

(

const BitSet &

b

)

const

Checks whether this bitset and b intersect

isStrictSubsetOf()

bool inviwo::BitSet::isStrictSubsetOf

(

const BitSet &

b

)

const

Check whether this bitset is a strict subset of b

isSubsetOf()

bool inviwo::BitSet::isSubsetOf

(

const BitSet &

b

)

const

Check whether this bitset is a subset of b

jaccardIndex()

double inviwo::BitSet::jaccardIndex

(

const BitSet &

b

)

const

Computes the Jaccard index between this bitset and b. This distance is also known as the Tanimoto distance, or the Jaccard similarity coefficient.

The Jaccard index is undefined if both bitsets are empty.

max()

uint32_t inviwo::BitSet::max

(

)

const

Return the largest value

Returns

largest value in the bitset, 0 if empty

min()

uint32_t inviwo::BitSet::min

(

)

const

Return the smallest value

Returns

smallest value in the bitset, UINT32_MAX if empty

operator!=()

bool inviwo::BitSet::operator!=

(

const BitSet &

b

)

const

Compare whether this bitset and b are different

operator&()

BitSet inviwo::BitSet::operator&

(

const BitSet &

b

)

const

Intersection of this bitset and b

operator&=()

BitSet & inviwo::BitSet::operator&=

(

const BitSet &

b

)

Intersection of this bitset and b

operator-()

BitSet inviwo::BitSet::operator-

(

const BitSet &

b

)

const

Difference of this bitset and b

operator-=()

BitSet & inviwo::BitSet::operator-=

(

const BitSet &

b

)

Difference of this bitset and b

operator==()

bool inviwo::BitSet::operator==

(

const BitSet &

b

)

const

Compare whether this bitset and b are identical

operator^()

BitSet inviwo::BitSet::operator^

(

const BitSet &

b

)

const

Symmetric union of this bitset and b

operator^=()

BitSet & inviwo::BitSet::operator^=

(

const BitSet &

b

)

Symmetric union of this bitset and b

operator|()

BitSet inviwo::BitSet::operator|

(

const BitSet &

b

)

const

Union of this bitset and b

operator|=()

BitSet & inviwo::BitSet::operator|=

(

const BitSet &

b

)

Union of this bitset and b

optimize()

void inviwo::BitSet::optimize

(

)

Optimize the bitset representation using run-length encoding based on space efficiency. Calling shrinkToFit() might result in further memory savings.

orCardinality()

size_t inviwo::BitSet::orCardinality

(

const BitSet &

b

)

const

Compute the cardinality of the union between this bitset and b

rank()

size_t inviwo::BitSet::rank

(

uint32_t

v

)

const

Return the number of values that are less or equal to v

readData()

void inviwo::BitSet::readData

(

std::istream &

is

)

Read a BitSet from stream is. The first four byte value contains the size of the bitset in bytes.

Exceptions

Exception

remove()

void inviwo::BitSet::remove

(

uint32_t

v

)

Remove value v to the bitset

Parameters

v

value

removeChecked()

bool inviwo::BitSet::removeChecked

(

uint32_t

v

)

Remove value v to the bitset and return true on success

Parameters

v

value

Returns

true if v was removed, false if it did not exist in the bitset

removeRLECompression()

void inviwo::BitSet::removeRLECompression

(

)

Enforce removing the run-length encoding of the bitset even though it might be more efficient.

See also

optimize()

serialize()

virtual void inviwo::BitSet::serialize ( Serializer & s ) const

overridevirtual

Implements inviwo::Serializable.

set()

bool inviwo::BitSet::set

(

const BitSet &

b

)

Replace the bitset with the contents of b, returns true if modified

Returns

true if the bitset was modified that is this and b were different

shrinkToFit()

size_t inviwo::BitSet::shrinkToFit

(

)

Reallocates the memory needed.

Returns

number of bytes saved

size()

size_t inviwo::BitSet::size

(

)

const

Return the number of elements the bitset holds

See also

cardinality()

toString()

std::string inviwo::BitSet::toString

(

)

const

Create a string from the bitset

toVector()

std::vector< uint32_t > inviwo::BitSet::toVector

(

)

const

Convert bitset to a std::vector holding only set elements. The output is ordered.

writeData()

void inviwo::BitSet::writeData

(

std::ostream &

os

)

const

Write this bitset to stream os. The first four byte value contains the size of the bitset in bytes followed by the binary encoding.

xorCardinality()

size_t inviwo::BitSet::xorCardinality

(

const BitSet &

b

)

const

Compute the cardinality of the symmetric difference between this bitset and b

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

• bitset.h