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std::array::size - cppreference.com

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constexpr size_type size()

(desde C++11)

Returns the number of elements in the container, i.e. std::distance(begin(), end()).

Parâmetros

(Nenhum)

Original:

(none)

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Valor de retorno

o número de elementos no recipiente

Original:

the number of elements in the container

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Exceções

Complexidade

Constant

Exemplo

The following code uses size to display the number of elements in a std::array<int>:

#include <array>
#include <iostream>
 
int main()
{
    std::array<int> nums {1, 3, 5, 7};
 
    std::cout << "nums contains " << nums.size() << " elements.\n";
}

Saída:

nums contains 4 elements.

Veja também

verifica se o recipiente estiver vazio

Original:

checks whether the container is empty

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(função pública membro) [edit]

retorna o número máximo possível de elementos

Original:

returns the maximum possible number of elements

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(função pública membro) [edit]