ordered_map< Key, T, IgnoredLess, Allocator > Struct Template Reference

a minimal map-like container that preserves insertion order More...

#include <nlohmann_json.hpp>

Inherits std::vector< std::pair< const Key, T >, std::allocator< std::pair< const Key, T > > >.

Public Types
using	key_type = Key
using	mapped_type = T
using	Container = std::vector< std::pair< const Key, T >, Allocator >
using	iterator = typename Container::iterator
using	const_iterator = typename Container::const_iterator
using	size_type = typename Container::size_type
using	value_type = typename Container::value_type
using	key_compare = std::equal_to< Key >
template<typename InputIt >
using	require_input_iter = typename std::enable_if< std::is_convertible< typename std::iterator_traits< InputIt >::iterator_category, std::input_iterator_tag >::value >::type

Public Member Functions
	ordered_map (const Allocator &alloc) noexcept(noexcept(Container(alloc)))
template<class It >
	ordered_map (It first, It last, const Allocator &alloc=Allocator())
	ordered_map (std::initializer_list< value_type > init, const Allocator &alloc=Allocator())
std::pair< iterator, bool >	emplace (const key_type &key, T &&t)
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
std::pair< iterator, bool >	emplace (KeyType &&key, T &&t)
T &	operator[] (const key_type &key)
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
T &	operator[] (KeyType &&key)
const T &	operator[] (const key_type &key) const
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
const T &	operator[] (KeyType &&key) const
T &	at (const key_type &key)
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
T &	at (KeyType &&key)
const T &	at (const key_type &key) const
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
const T &	at (KeyType &&key) const
size_type	erase (const key_type &key)
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
size_type	erase (KeyType &&key)
iterator	erase (iterator pos)
iterator	erase (iterator first, iterator last)
size_type	count (const key_type &key) const
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
size_type	count (KeyType &&key) const
iterator	find (const key_type &key)
template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>
iterator	find (KeyType &&key)
const_iterator	find (const key_type &key) const
std::pair< iterator, bool >	insert (value_type &&value)
std::pair< iterator, bool >	insert (const value_type &value)
template<typename InputIt , typename = require_input_iter<InputIt>>
void	insert (InputIt first, InputIt last)

Private Attributes
JSON_NO_UNIQUE_ADDRESS key_compare	m_compare = key_compare()

Detailed Description

template<class Key, class T, class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>
struct ordered_map< Key, T, IgnoredLess, Allocator >

a minimal map-like container that preserves insertion order

See also

https://json.nlohmann.me/api/ordered_map/

ordered_map: a minimal map-like container that preserves insertion order for use within nlohmann::basic_json<ordered_map>

Definition at line 18947 of file nlohmann_json.hpp.

Member Typedef Documentation

key_type

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::key_type = Key

Definition at line 18949 of file nlohmann_json.hpp.

mapped_type

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::mapped_type = T

Definition at line 18950 of file nlohmann_json.hpp.

Container

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::Container = std::vector<std::pair<const Key, T>, Allocator>

Definition at line 18951 of file nlohmann_json.hpp.

iterator

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::iterator = typename Container::iterator

Definition at line 18952 of file nlohmann_json.hpp.

const_iterator

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::const_iterator = typename Container::const_iterator

Definition at line 18953 of file nlohmann_json.hpp.

size_type

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::size_type = typename Container::size_type

Definition at line 18954 of file nlohmann_json.hpp.

value_type

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::value_type = typename Container::value_type

Definition at line 18955 of file nlohmann_json.hpp.

key_compare

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

using ordered_map< Key, T, IgnoredLess, Allocator >::key_compare = std::equal_to<Key>

Definition at line 18959 of file nlohmann_json.hpp.

require_input_iter

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<typename InputIt >

using ordered_map< Key, T, IgnoredLess, Allocator >::require_input_iter = typename std::enable_if<std::is_convertible<typename std::iterator_traits<InputIt>::iterator_category, std::input_iterator_tag>::value>::type

Definition at line 19261 of file nlohmann_json.hpp.

Constructor & Destructor Documentation

ordered_map() [1/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

ordered_map< Key, T, IgnoredLess, Allocator >::ordered_map ( )

inlinenoexcept

Definition at line 18964 of file nlohmann_json.hpp.

ordered_map() [2/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

ordered_map< Key, T, IgnoredLess, Allocator >::ordered_map ( const Allocator &  alloc )

inlineexplicitnoexcept

Definition at line 18965 of file nlohmann_json.hpp.

ordered_map() [3/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class It >

ordered_map< Key, T, IgnoredLess, Allocator >::ordered_map ( It  first, It  last, const Allocator &  alloc = Allocator()  )

inline

Definition at line 18967 of file nlohmann_json.hpp.

ordered_map() [4/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

ordered_map< Key, T, IgnoredLess, Allocator >::ordered_map ( std::initializer_list< value_type >  init, const Allocator &  alloc = Allocator()  )

inline

Definition at line 18969 of file nlohmann_json.hpp.

Member Function Documentation

emplace() [1/2]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

std::pair< iterator, bool > ordered_map< Key, T, IgnoredLess, Allocator >::emplace ( const key_type &  key, T &&  t  )

inline

Definition at line 18972 of file nlohmann_json.hpp.

emplace() [2/2]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

std::pair< iterator, bool > ordered_map< Key, T, IgnoredLess, Allocator >::emplace ( KeyType &&  key, T &&  t  )

inline

Definition at line 18987 of file nlohmann_json.hpp.

operator[]() [1/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

T & ordered_map< Key, T, IgnoredLess, Allocator >::operator[] ( const key_type &  key )

inline

Definition at line 19000 of file nlohmann_json.hpp.

operator[]() [2/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

T & ordered_map< Key, T, IgnoredLess, Allocator >::operator[] ( KeyType &&  key )

inline

Definition at line 19007 of file nlohmann_json.hpp.

operator[]() [3/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

const T & ordered_map< Key, T, IgnoredLess, Allocator >::operator[] ( const key_type &  key ) const

inline

Definition at line 19012 of file nlohmann_json.hpp.

operator[]() [4/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

const T & ordered_map< Key, T, IgnoredLess, Allocator >::operator[] ( KeyType &&  key ) const

inline

Definition at line 19019 of file nlohmann_json.hpp.

at() [1/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

T & ordered_map< Key, T, IgnoredLess, Allocator >::at ( const key_type &  key )

inline

Definition at line 19024 of file nlohmann_json.hpp.

at() [2/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

T & ordered_map< Key, T, IgnoredLess, Allocator >::at ( KeyType &&  key )

inline

Definition at line 19039 of file nlohmann_json.hpp.

at() [3/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

const T & ordered_map< Key, T, IgnoredLess, Allocator >::at ( const key_type &  key ) const

inline

Definition at line 19052 of file nlohmann_json.hpp.

at() [4/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

const T & ordered_map< Key, T, IgnoredLess, Allocator >::at ( KeyType &&  key ) const

inline

Definition at line 19067 of file nlohmann_json.hpp.

erase() [1/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

size_type ordered_map< Key, T, IgnoredLess, Allocator >::erase ( const key_type &  key )

inline

Definition at line 19080 of file nlohmann_json.hpp.

erase() [2/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

size_type ordered_map< Key, T, IgnoredLess, Allocator >::erase ( KeyType &&  key )

inline

Definition at line 19101 of file nlohmann_json.hpp.

erase() [3/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

iterator ordered_map< Key, T, IgnoredLess, Allocator >::erase ( iterator  pos )

inline

Definition at line 19120 of file nlohmann_json.hpp.

erase() [4/4]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

iterator ordered_map< Key, T, IgnoredLess, Allocator >::erase ( iterator  first, iterator  last  )

inline

Definition at line 19125 of file nlohmann_json.hpp.

count() [1/2]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

size_type ordered_map< Key, T, IgnoredLess, Allocator >::count ( const key_type &  key ) const

inline

Definition at line 19178 of file nlohmann_json.hpp.

count() [2/2]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

size_type ordered_map< Key, T, IgnoredLess, Allocator >::count ( KeyType &&  key ) const

inline

Definition at line 19192 of file nlohmann_json.hpp.

find() [1/3]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

iterator ordered_map< Key, T, IgnoredLess, Allocator >::find ( const key_type &  key )

inline

Definition at line 19204 of file nlohmann_json.hpp.

find() [2/3]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<class KeyType , detail::enable_if_t< detail::is_usable_as_key_type< key_compare, key_type, KeyType >::value, int > = 0>

iterator ordered_map< Key, T, IgnoredLess, Allocator >::find ( KeyType &&  key )

inline

Definition at line 19218 of file nlohmann_json.hpp.

find() [3/3]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

const_iterator ordered_map< Key, T, IgnoredLess, Allocator >::find ( const key_type &  key ) const

inline

Definition at line 19230 of file nlohmann_json.hpp.

insert() [1/3]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

std::pair< iterator, bool > ordered_map< Key, T, IgnoredLess, Allocator >::insert ( value_type &&  value )

inline

Definition at line 19242 of file nlohmann_json.hpp.

insert() [2/3]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

std::pair< iterator, bool > ordered_map< Key, T, IgnoredLess, Allocator >::insert ( const value_type &  value )

inline

Definition at line 19247 of file nlohmann_json.hpp.

insert() [3/3]

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

template<typename InputIt , typename = require_input_iter<InputIt>>

void ordered_map< Key, T, IgnoredLess, Allocator >::insert ( InputIt  first, InputIt  last  )

inline

Definition at line 19265 of file nlohmann_json.hpp.

Member Data Documentation

m_compare

template<class Key , class T , class IgnoredLess = std::less<Key>, class Allocator = std::allocator<std::pair<const Key, T>>>

JSON_NO_UNIQUE_ADDRESS key_compare ordered_map< Key, T, IgnoredLess, Allocator >::m_compare = key_compare()

private

Definition at line 19274 of file nlohmann_json.hpp.

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

• nlohmann_json.hpp