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std::vector::size

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< cpp‎ | container‎ | vector

 
 
 
std::vector
Las funciones miembro
Original:
Member functions
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Elemento acceso
Original:
Element access
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Los iteradores
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Iterators
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Capacidad
Original:
Capacity
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vector::size
Modificadores
Original:
Modifiers
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size_type size() const;

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::vector<int>:

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

Salida:

nums contains 4 elements.

[editar] Ver también

devuelve el número de elementos que se pueden almacenar en el almacenamiento asignado actualmente
Original:
returns the number of elements that can be held in currently allocated storage
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(función miembro público) [editar]
comprueba si el recipiente está vacío
Original:
checks whether the container is empty
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(función miembro público) [editar]
devuelve el número máximo posible de elementos
Original:
returns the maximum possible number of elements
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(función miembro público) [editar]
changes the number of elements stored
(función miembro público) [editar]