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std::vector::shrink_to_fit

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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
Original:
Iterators
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Capacidad
Original:
Capacity
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vector::shrink_to_fit
(C++11)
Modificadores
Original:
Modifiers
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void shrink_to_fit();
(desde C++11)
Pide la eliminación de la capacidad no utilizada .
Original:
Requests the removal of unused capacity.
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Se trata de una petición no vinculante para reducir capacity a size. Depende de la aplicación si la petición se cumpla .
Original:
It is a non-binding request to reduce capacity to size. It depends on the implementation if the request is fulfilled.
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Contenido

[editar] Parámetros

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

(Ninguno)
Original:
(none)
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[editar] Complejidad

Constant
Original:
Constant
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Example

#include <iostream>
#include <vector>
int main()
{
    std::vector<int> v;
    std::cout << "Default-constructd capacity is " << v.capacity() << '\n';
    v.resize(100);
    std::cout << "Capacity of a 100-element vector is " << v.capacity() << '\n';
    v.clear();
    std::cout << "Capacity after clear() is " << v.capacity() << '\n';
    v.shrink_to_fit();
    std::cout << "Capacity after shrink_to_fit() is " << v.capacity() << '\n';
}

Salida:

Default-constructd capacity is 0
Capacity of a 100-element vector is 100
Capacity after clear() is 100
Capacity after shrink_to_fit() is 0

[editar] Ver también

devuelve el número de elementos
Original:
returns the number of elements
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(función miembro público) [editar]
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]