Overview

template<typename Key, typename Value>
class pw::DynamicMap< Key, Value >

Dynamic ordered map, similar to std::map, but optimized for embedded.

Key features of pw::DynamicMap.

Uses a pw::Allocator for memory operations for each node.
Provides a std::map-like API, but adds try_* versions of operations that return std::nullopt on allocation failure.
- insert() & try_insert().
- emplace() & try_emplace().
Never allocates in the constructor. constexpr constructible.
Leverages pw::IntrusiveMap internally to manage the balanced tree structure without additional per-node overhead beyond the user data and tree pointers.

Public Types
using	key_type = Key

using	mapped_type = Value

using	value_type = std::pair< const Key, Value >

using	size_type = typename Map::size_type

using	difference_type = typename Map::difference_type

using	key_compare = typename Map::key_compare

using	allocator_type = Allocator

using	reference = value_type &

using	const_reference = const value_type &

using	pointer = value_type *

using	const_pointer = const value_type *

using	iterator = Iterator< false >

using	const_iterator = Iterator< true >

using	reverse_iterator = std::reverse_iterator< iterator >

using	const_reverse_iterator = std::reverse_iterator< const_iterator >

using	insert_return_type = std::pair< iterator, bool >

Public Member Functions
constexpr	DynamicMap (Allocator &allocator) noexcept

	DynamicMap (const DynamicMap &)=delete

DynamicMap &	operator= (const DynamicMap &)=delete

	DynamicMap (DynamicMap &&other) noexcept

DynamicMap &	operator= (DynamicMap &&other) noexcept

constexpr allocator_type &	get_allocator () const
	Returns the allocator used by this map.

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

reverse_iterator	rbegin () noexcept

const_reverse_iterator	rbegin () const noexcept

const_reverse_iterator	crbegin () const noexcept

reverse_iterator	rend () noexcept

const_reverse_iterator	rend () const noexcept

const_reverse_iterator	crend () const noexcept

mapped_type &	at (const key_type &key)

const mapped_type &	at (const key_type &key) const

template<typename U = mapped_type, typename = std::enable_if_t<std::is_default_constructible_v<U>>>
mapped_type &	operator[] (const key_type &key)

bool	empty () const

size_type	size () const

constexpr size_type	max_size () const noexcept

void	clear ()
	Removes all elements from the map and deallocates each node.

std::optional< insert_return_type >	try_insert (const value_type &value)

std::optional< insert_return_type >	try_insert (value_type &&)=delete

insert_return_type	insert (const value_type &value)
	Inserts a value into the map. Crashes on allocation failure.

insert_return_type	insert (value_type &&value)

template<typename InputIt , typename = containers::internal::EnableIfInputIterator<InputIt>>
void	insert (InputIt first, InputIt last)
	Inserts a range of elements. Crashes on allocation failure.

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

template<typename K , typename... Args>
std::optional< std::pair< iterator, bool > >	try_emplace (K &&key, Args &&... args)

template<typename K , typename... Args>
std::pair< iterator, bool >	emplace (K &&key, Args &&... args)
	Constructs an element in-place. Crashes on allocation failure.

iterator	erase (iterator pos)
	Removes the element at `pos` and deallocates the node.

iterator	erase (const_iterator pos)

iterator	erase (iterator first, iterator last)
	Removes elements in the range `[first, last)`.

template<typename K >
size_type	erase (K &&key)

void	swap (DynamicMap &other)
	Swaps the contents and allocators of two maps. No allocations occur.

void	merge (DynamicMap &other)

void	merge (DynamicMap &&other)

size_type	count (const key_type &key)

iterator	find (const key_type &key)

const_iterator	find (const key_type &key) const

bool	contains (const key_type &key) const

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

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

iterator	lower_bound (const key_type &key)

const_iterator	lower_bound (const key_type &key) const

iterator	upper_bound (const key_type &key)

const_iterator	upper_bound (const key_type &key) const

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

pw_containers/public/pw_containers/dynamic_map.h

Overview

Public Types

Public Member Functions