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std::array::size

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< cpp‎ | container‎ | array

 
 
 
std::array
Las funciones miembro
Original:
Member functions
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Elemento acceso
Original:
Element access
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array::at
array::operator[]
array::front
array::back
array::data
Los iteradores
Original:
Iterators
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array::begin
array::cbegin
array::end
array::cend
array::rbegin
array::crbegin
array::rend
array::crend
Capacidad
Original:
Capacity
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array::empty
array::size
array::max_size
Modificadores
Original:
Modifiers
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array::fill
array::swap
Terceros funciones
Original:
Non-member functions
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get
swap
Clases de ayuda
Original:
Helper classes
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tuple_size
tuple_element
 
constexpr size_type size()
(desde C++11)

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

Contenido

[editar] Parámetros

(Ninguno)
Original:
(none)
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[editar] Valor de retorno

el número de elementos en el contenedor
Original:
the number of elements in the container
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[editar] Excepciones

noexcept specification:  
noexcept
  (desde C++11)

[editar] Complejidad

Constant

[editar] Ejemplo

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";
}

Output:

nums contains 4 elements.

[editar] Ver también

comprueba si el recipiente está vacía
Original:
checks whether the container is empty
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(miembro público función) [edit]
devuelve el número máximo posible de elementos
Original:
returns the maximum possible number of elements
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(miembro público función) [edit]