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std::unordered_map::emplace

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std::unordered_map
Les fonctions membres
Original:
Member functions
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unordered_map::unordered_map
unordered_map::~unordered_map
unordered_map::operator=
unordered_map::get_allocator
Les itérateurs
Original:
Iterators
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unordered_map::begin
unordered_map::cbegin
unordered_map::end
unordered_map::cend
Capacité
Original:
Capacity
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unordered_map::erase
unordered_map::size
unordered_map::max_size
Modificateurs
Original:
Modifiers
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unordered_map::clear
unordered_map::insert
unordered_map::emplace
unordered_map::emplace_hint
unordered_map::erase
unordered_map::swap
Lookup
Original:
Lookup
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unordered_map::count
unordered_map::find
unordered_map::equal_range
Interface seau
Original:
Bucket interface
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unordered_map::begin2
unordered_map::end2
unordered_map::bucket_count
unordered_map::max_bucket_count
unordered_map::bucket_size
unordered_map::bucket
Politique de hachage
Original:
Hash policy
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unordered_map::load_factor
unordered_map::max_load_factor
unordered_map::rehash
unordered_map::reserve
Des observateurs
Original:
Observers
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unordered_map::hash_function
unordered_map::key_eq
 
template< class... Args >
std::pair<iterator,bool> emplace( Args&&... args );
(depuis C++11)
Insère un nouvel élément dans le récipient. L'élément est réalisé in-situ, c'est à dire pas de copie ou les opérations de déplacement sont effectuées. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....
Original:
Inserts a new element to the container. The element is constructed in-place, i.e. no copy or move operations are performed. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....
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If rehashing occurs due to the insertion, all iterators are invalidated. Otherwise iterators are not affected. References are not invalidated. Rehashing occurs only if the new number of elements is higher than max_load_factor()*bucket_count().

Sommaire

[modifier] Paramètres

args -
arguments à transmettre au constructeur de l'élément
Original:
arguments to forward to the constructor of the element
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[modifier] Retourne la valeur

returns a pair consisting of a bool denoting whether the insertion took place and an iterator to the inserted element.

[modifier] Complexité

Amortized constant on average, worst case linear in the size of the container.

[modifier] Voir aussi

construit éléments en place en utilisant un indice
Original:
constructs elements in-place using a hint
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(fonction membre publique) [edit]
insère des éléments
Original:
inserts elements
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(fonction membre publique) [edit]