Detailed Description

template<class Key, class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>
class tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >

Implementation of a hash set using the hopscotch hashing algorithm.

The Key must be either nothrow move-constructible, copy-constuctible or both.

The size of the neighborhood (NeighborhoodSize) must be > 0 and <= 62 if StoreHash is false. When StoreHash is true, 32-bits of the hash will be stored alongside the neighborhood limiting the NeighborhoodSize to <= 30. There is no memory usage difference between 'NeighborhoodSize 62; StoreHash false' and 'NeighborhoodSize 30; StoreHash true'.

Storing the hash may improve performance on insert during the rehash process if the hash takes time to compute. It may also improve read performance if the KeyEqual function takes time (or incurs a cache-miss). If used with simple Hash and KeyEqual it may slow things down.

StoreHash can only be set if the GrowthPolicy is set to tsl::power_of_two_growth_policy.

GrowthPolicy defines how the set grows and consequently how a hash value is mapped to a bucket. By default the set uses tsl::power_of_two_growth_policy. This policy keeps the number of buckets to a power of two and uses a mask to set the hash to a bucket instead of the slow modulo. You may define your own growth policy, check tsl::power_of_two_growth_policy for the interface.

If the destructor of Key throws an exception, behaviour of the class is undefined.

Iterators invalidation:

clear, operator=, reserve, rehash: always invalidate the iterators.
insert, emplace, emplace_hint, operator[]: if there is an effective insert, invalidate the iterators if a displacement is needed to resolve a collision (which mean that most of the time, insert will invalidate the iterators). Or if there is a rehash.
erase: iterator on the erased element is the only one which become invalid.

Definition at line 78 of file hopscotch_set.h.

#include <hopscotch_set.h>

Data Structures
class	KeySelect

Public Types
using	key_type = typename ht::key_type

using	value_type = typename ht::value_type

using	size_type = typename ht::size_type

using	difference_type = typename ht::difference_type

using	hasher = typename ht::hasher

using	key_equal = typename ht::key_equal

using	allocator_type = typename ht::allocator_type

using	reference = typename ht::reference

using	const_reference = typename ht::const_reference

using	pointer = typename ht::pointer

using	const_pointer = typename ht::const_pointer

using	iterator = typename ht::iterator

using	const_iterator = typename ht::const_iterator

Public Member Functions
	hopscotch_set (size_type bucket_count, const Hash &hash=Hash(), const KeyEqual &equal=KeyEqual(), const Allocator &alloc=Allocator())

	hopscotch_set (size_type bucket_count, const Allocator &alloc)

	hopscotch_set (size_type bucket_count, const Hash &hash, const Allocator &alloc)

	hopscotch_set (const Allocator &alloc)

template<class InputIt >
	hopscotch_set (InputIt first, InputIt last, size_type bucket_count=ht::DEFAULT_INIT_BUCKETS_SIZE, const Hash &hash=Hash(), const KeyEqual &equal=KeyEqual(), const Allocator &alloc=Allocator())

template<class InputIt >
	hopscotch_set (InputIt first, InputIt last, size_type bucket_count, const Allocator &alloc)

template<class InputIt >
	hopscotch_set (InputIt first, InputIt last, size_type bucket_count, const Hash &hash, const Allocator &alloc)

	hopscotch_set (std::initializer_list< value_type > init, size_type bucket_count=ht::DEFAULT_INIT_BUCKETS_SIZE, const Hash &hash=Hash(), const KeyEqual &equal=KeyEqual(), const Allocator &alloc=Allocator())

	hopscotch_set (std::initializer_list< value_type > init, size_type bucket_count, const Allocator &alloc)

	hopscotch_set (std::initializer_list< value_type > init, size_type bucket_count, const Hash &hash, const Allocator &alloc)

hopscotch_set &	operator= (std::initializer_list< value_type > ilist)

allocator_type	get_allocator () const

iterator	begin () noexcept

const_iterator	begin () const noexcept

const_iterator	cbegin () const noexcept

iterator	end () noexcept

const_iterator	end () const noexcept

const_iterator	cend () const noexcept

bool	empty () const noexcept

size_type	size () const noexcept

size_type	max_size () const noexcept

void	clear () noexcept

std::pair< iterator, bool >	insert (const value_type &value)

std::pair< iterator, bool >	insert (value_type &&value)

iterator	insert (const_iterator hint, const value_type &value)

iterator	insert (const_iterator hint, value_type &&value)

template<class InputIt >
void	insert (InputIt first, InputIt last)

void	insert (std::initializer_list< value_type > ilist)

template<class... Args>
std::pair< iterator, bool >	emplace (Args &&... args)

template<class... Args>
iterator	emplace_hint (const_iterator hint, Args &&... args)

iterator	erase (iterator pos)

iterator	erase (const_iterator pos)

iterator	erase (const_iterator first, const_iterator last)

size_type	erase (const key_type &key)

size_type	erase (const key_type &key, std::size_t precalculated_hash)

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
size_type	erase (const K &key)

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
size_type	erase (const K &key, std::size_t precalculated_hash)

void	swap (hopscotch_set &other)

size_type	count (const Key &key) const

size_type	count (const Key &key, std::size_t precalculated_hash) const

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
size_type	count (const K &key) const

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
size_type	count (const K &key, std::size_t precalculated_hash) const

iterator	find (const Key &key)

iterator	find (const Key &key, std::size_t precalculated_hash)

const_iterator	find (const Key &key) const

const_iterator	find (const Key &key, std::size_t precalculated_hash) const

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
iterator	find (const K &key)

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
iterator	find (const K &key, std::size_t precalculated_hash)

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
const_iterator	find (const K &key) const

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
const_iterator	find (const K &key, std::size_t precalculated_hash) const

std::pair< iterator, iterator >	equal_range (const Key &key)

std::pair< iterator, iterator >	equal_range (const Key &key, std::size_t precalculated_hash)

std::pair< const_iterator, const_iterator >	equal_range (const Key &key) const

std::pair< const_iterator, const_iterator >	equal_range (const Key &key, std::size_t precalculated_hash) const

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
std::pair< iterator, iterator >	equal_range (const K &key)

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
std::pair< iterator, iterator >	equal_range (const K &key, std::size_t precalculated_hash)

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
std::pair< const_iterator, const_iterator >	equal_range (const K &key) const

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>
std::pair< const_iterator, const_iterator >	equal_range (const K &key, std::size_t precalculated_hash) const

size_type	bucket_count () const

size_type	max_bucket_count () const

float	load_factor () const

float	max_load_factor () const

void	max_load_factor (float ml)

void	rehash (size_type count)

void	reserve (size_type count)

hasher	hash_function () const

key_equal	key_eq () const

iterator	mutable_iterator (const_iterator pos)

size_type	overflow_size () const noexcept

Private Types
template<typename U >
using	has_is_transparent = tsl::detail_hopscotch_hash::has_is_transparent< U >

using	overflow_container_type = std::list< Key, Allocator >

using	ht = detail_hopscotch_hash::hopscotch_hash< Key, KeySelect, void, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy, overflow_container_type >

Private Attributes
ht	m_ht

Friends
bool	operator== (const hopscotch_set &lhs, const hopscotch_set &rhs)

bool	operator!= (const hopscotch_set &lhs, const hopscotch_set &rhs)

void	swap (hopscotch_set &lhs, hopscotch_set &rhs)

Member Function Documentation

◆ count() [1/3]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

size_type tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::count	(	const Key &	key,
		std::size_t	precalculated_hash
	)		const

inline

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 322 of file hopscotch_set.h.

◆ count() [2/3]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

size_type tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::count ( const K & key ) const

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Definition at line 329 of file hopscotch_set.h.

◆ count() [3/3]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

size_type tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::count	(	const K &	key,
		std::size_t	precalculated_hash
	)		const

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 338 of file hopscotch_set.h.

◆ emplace()

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class... Args>

std::pair<iterator, bool> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::emplace ( Args &&... args )

inline

Due to the way elements are stored, emplace will need to move or copy the key-value once. The method is equivalent to insert(value_type(std::forward<Args>(args)...));

Mainly here for compatibility with the std::unordered_map interface.

Definition at line 257 of file hopscotch_set.h.

◆ emplace_hint()

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class... Args>

iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::emplace_hint	(	const_iterator	hint,
		Args &&...	args
	)

inline

Due to the way elements are stored, emplace_hint will need to move or copy the key-value once. The method is equivalent to insert(hint, value_type(std::forward<Args>(args)...));

Mainly here for compatibility with the std::unordered_map interface.

Definition at line 269 of file hopscotch_set.h.

◆ equal_range() [1/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

std::pair<iterator, iterator> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::equal_range	(	const Key &	key,
		std::size_t	precalculated_hash
	)

inline

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 398 of file hopscotch_set.h.

◆ equal_range() [2/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

std::pair<const_iterator, const_iterator> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::equal_range	(	const Key &	key,
		std::size_t	precalculated_hash
	)		const

inline

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 407 of file hopscotch_set.h.

◆ equal_range() [3/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

std::pair<iterator, iterator> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::equal_range ( const K & key )

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Definition at line 416 of file hopscotch_set.h.

◆ equal_range() [4/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

std::pair<iterator, iterator> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::equal_range	(	const K &	key,
		std::size_t	precalculated_hash
	)

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 425 of file hopscotch_set.h.

◆ equal_range() [5/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

std::pair<const_iterator, const_iterator> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::equal_range ( const K & key ) const

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Definition at line 433 of file hopscotch_set.h.

◆ equal_range() [6/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

std::pair<const_iterator, const_iterator> tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::equal_range	(	const K &	key,
		std::size_t	precalculated_hash
	)		const

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 439 of file hopscotch_set.h.

◆ erase() [1/3]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

size_type tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::erase	(	const key_type &	key,
		std::size_t	precalculated_hash
	)

inline

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup to the value if you already have the hash.

Definition at line 285 of file hopscotch_set.h.

◆ erase() [2/3]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

size_type tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::erase ( const K & key )

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Definition at line 294 of file hopscotch_set.h.

◆ erase() [3/3]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

size_type tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::erase	(	const K &	key,
		std::size_t	precalculated_hash
	)

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup to the value if you already have the hash.

Definition at line 303 of file hopscotch_set.h.

◆ find() [1/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::find	(	const Key &	key,
		std::size_t	precalculated_hash
	)

inline

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 349 of file hopscotch_set.h.

◆ find() [2/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

const_iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::find	(	const Key &	key,
		std::size_t	precalculated_hash
	)		const

inline

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 356 of file hopscotch_set.h.

◆ find() [3/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::find ( const K & key )

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Definition at line 363 of file hopscotch_set.h.

◆ find() [4/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::find	(	const K &	key,
		std::size_t	precalculated_hash
	)

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 372 of file hopscotch_set.h.

◆ find() [5/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

const_iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::find ( const K & key ) const

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Definition at line 378 of file hopscotch_set.h.

◆ find() [6/6]

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

template<class K , class KE = KeyEqual, typename std::enable_if< has_is_transparent< KE >::value >::type * = nullptr>

const_iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::find	(	const K &	key,
		std::size_t	precalculated_hash
	)		const

inline

This overload only participates in the overload resolution if the typedef KeyEqual::is_transparent exists. If so, K must be hashable and comparable to Key.

Use the hash value 'precalculated_hash' instead of hashing the key. The hash value should be the same as hash_function()(key). Usefull to speed-up the lookup if you already have the hash.

Definition at line 387 of file hopscotch_set.h.

◆ mutable_iterator()

template<class Key , class Hash = std::hash<Key>, class KeyEqual = std::equal_to<Key>, class Allocator = std::allocator<Key>, unsigned int NeighborhoodSize = 62, bool StoreHash = false, class GrowthPolicy = tsl::power_of_two_growth_policy>

iterator tsl::hopscotch_set< Key, Hash, KeyEqual, Allocator, NeighborhoodSize, StoreHash, GrowthPolicy >::mutable_iterator ( const_iterator pos )

inline

Convert a const_iterator to an iterator.

Definition at line 478 of file hopscotch_set.h.

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

openfpm_data/src/hash_map/hopscotch_set.h

Detailed Description

Data Structures

Public Types

Public Member Functions

Private Types

Private Attributes

Friends

Member Function Documentation

◆ count() [1/3]

◆ count() [2/3]

◆ count() [3/3]

◆ emplace()

◆ emplace_hint()

◆ equal_range() [1/6]

◆ equal_range() [2/6]

◆ equal_range() [3/6]

◆ equal_range() [4/6]

◆ equal_range() [5/6]

◆ equal_range() [6/6]

◆ erase() [1/3]

◆ erase() [2/3]

◆ erase() [3/3]

◆ find() [1/6]

◆ find() [2/6]

◆ find() [3/6]

◆ find() [4/6]

◆ find() [5/6]

◆ find() [6/6]

◆ mutable_iterator()