std::unordered_set::size
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< cpp | container | unordered set
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| size_type size() const; |
(desde C++11) | |
Returns the number of elements in the container, i.e. std::distance(begin(), end()).
Índice |
[editar] Parâmetros
(Nenhum)
Original:
(none)
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[editar] Valor de retorno
o número de elementos no recipiente
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.
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[editar] Exceções
[editar] Complexidade
Constant
[editar] Exemplo
The following code uses size to display the number of elements in a std::unordered_set<int>:
#include <unordered_set> #include <iostream> int main() { std::unordered_set<int> nums {1, 3, 5, 7}; std::cout << "nums contains " << nums.size() << " elements.\n"; }
Saída:
nums contains 4 elements.
[editar] Veja também
| verifica se o recipiente estiver vazio Original: checks whether the container is empty The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro) | |
| retorna o número máximo possível de elementos Original: returns the maximum possible number of elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro) | |
