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std::map::count

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< cpp‎ | container‎ | map
 
 
 
std::map
Les fonctions membres
Original:
Member functions
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map::map
map::~map
map::operator=
map::get_allocator
Elément d'accès
Original:
Element access
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map::at
map::operator[]
Les itérateurs
Original:
Iterators
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map::begin
map::cbegin

(C++11)
map::end
map::cend

(C++11)
map::rbegin
map::crbegin

(C++11)
map::rend
map::crend

(C++11)
Capacité
Original:
Capacity
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map::empty
map::size
map::max_size
Modificateurs
Original:
Modifiers
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map::clear
map::insert
map::emplace (C++11)
map::emplace_hint (C++11)
map::erase
map::swap
Lookup
Original:
Lookup
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map::count
map::find
map::equal_range
map::lower_bound
map::upper_bound
Des observateurs
Original:
Observers
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map::key_comp
map::value_comp
 
size_type count( const Key& key ) const;

Retourne le nombre d'éléments avec la clé key.

Sommaire

[modifier] Paramètres

key - valeur de la clé des éléments à compter

[modifier] Valeur de retour

Nombre d'éléments avec la clé key

[modifier] Complexité

Logarithmic in the size of the container plus linear in the number of the elements found.

[modifier] Voir aussi

trouve l'élément avec la clé spécifique
Original:
finds element with specific key
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(fonction membre publique) [edit]
rendements varient d'éléments correspondant à une clé spécifique
Original:
returns range of elements matching a specific key
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(fonction membre publique) [edit]