std::unordered_multimap::size — cppreference.com
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(depuis C++11) | |
Returns the number of elements in the container, i.e. std::distance(begin(), end()).
Paramètres
(Aucun)
Original:
(none)
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Retourne la valeur
le nombre d'éléments dans le conteneur
Original:
the number of elements in the container
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Exceptions
Complexité
Constant
Exemple
The following code uses size to display the number of elements in a std::unordered_multimap<int>:
#include <unordered_multimap> #include <iostream> int main() { std::unordered_multimap<int, char> nums {{1, 'a'}, {3, 'b'}, {5, 'c'}, {7, 'd'}}; std::cout << "nums contains " << nums.size() << " elements.\n"; }
Résultat :
nums contains 4 elements.
Voir aussi
vérifie si le conteneur est vide Original: checks whether the container is empty The text has been machine-translated via Google Translate. (fonction membre publique) [edit] | |
retourne le plus grand nombre possible d'éléments Original: returns the maximum possible number of elements The text has been machine-translated via Google Translate. (fonction membre publique) [edit] | |