std::vector::shrink_to_fit

 

C++

Lenguaje

Cabeceras

Conceptos

Biblioteca de utilidades

Biblioteca de cadenas

Biblioteca de contenedores

Biblioteca de algoritmos

Biblioteca de iteradores

Biblioteca numérica

Biblioteca de entrada/salida

Biblioteca de localización

Biblioteca de expresiones regulares (C++11)

Biblioteca de operaciones atómicas (C++11)

Biblioteca de hilos/subprocesos (C++11)

 

Biblioteca de contenedores

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

 

std::vector

Las funciones miembro Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::vector

vector::~vector

vector::operator=

vector::assign

vector::get_allocator

Elemento acceso Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::at

vector::operator[]

vector::front

vector::back

vector::data (C++11)

Los iteradores Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::beginvector::cbegin (C++11)

vector::endvector::cend (C++11)

vector::rbeginvector::crbegin (C++11)

vector::rendvector::crend (C++11)

Capacidad Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::empty

vector::size

vector::max_size

vector::reserve

vector::capacity

vector::shrink_to_fit (C++11)

Modificadores Original: Modifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::clear

vector::insert

vector::emplace (C++11)

vector::erase

vector::push_back

vector::emplace_back (C++11)

vector::pop_back

vector::resize

vector::swap

 

void shrink_to_fit();		(desde C++11)

Pide la eliminación de la capacidad no utilizada .

Original:

Requests the removal of unused capacity.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

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.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Parámetros

(Ninguno)

Original:

(none)

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

(Ninguno)

Original:

(none)

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Complejidad

Constant

Original:

Constant

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

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

Ver también

size	devuelve el número de elementos Original: returns the number of elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función miembro público)
capacity	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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función miembro público)