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std::array::size

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< cpp‎ | container‎ | array

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C++
 
Recipientes biblioteca
 
std::array
Funções de membro
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Member functions
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acesso. Elemento
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Element access
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array::at
array::operator[]
array::front
array::back
array::data
Iteradores
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Iterators
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array::begin
array::cbegin
array::end
array::cend
array::rbegin
array::crbegin
array::rend
array::crend
Capacidade
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Capacity
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array::empty
array::size
array::max_size
Modificadores
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Modifiers
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array::fill
array::swap
Não-membros funções
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Non-member functions
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Classes auxiliares
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Helper classes
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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()).

Índice

[editar] Parâmetros

(Nenhum)
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(none)
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[editar] Valor de retorno

o número de elementos no recipiente
Original:
the number of elements in the container
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[editar] Exceções

noexcept specification:  
noexcept
  (desde C++11)

[editar] Complexidade

Constant

[editar] 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.

[editar] 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
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returns the maximum possible number of elements
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(função pública membro) [edit]
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