std::vector::vector

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

Contenitori libreria

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

Membri funzioni 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 accesso 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)

Iteratori 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::begin vector::cbegin (C++11)

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

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

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

Capacità 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)

Modificatori 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

 

explicit vector( const Allocator& alloc = Allocator() );	(1)
explicit vector( size_type count,                  const T& value = T(),                  const Allocator& alloc = Allocator());          vector( size_type count,                  const T& value,                  const Allocator& alloc = Allocator());	(2)	(C fino + 11) (dal C++11)
explicit vector( size_type count );	(3)	(dal C++11)
template< class InputIt > vector( InputIt first, InputIt last,         const Allocator& alloc = Allocator() );	(4)
vector( const vector& other );	(5)
vector( const vector& other, const Allocator& alloc );	(5)	(dal C++11)
vector( vector&& other )	(6)	(dal C++11)
vector( vector&& other, const Allocator& alloc );	(6)	(dal C++11)
vector( std::initializer_list<T> init,         const Allocator& alloc = Allocator() );	(7)	(dal C++11)

Costruisce nuovo contenitore da una varietà di fonti di dati ed eventualmente utilizzando allocatore fornita dall'utente alloc.

Original:

Constructs new container from a variety of data sources and optionally using user supplied allocator alloc.

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1)

Costruttore di default. Costruisce contenitore vuoto.

Original:

Default constructor. Constructs empty container.

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2)

Costruisce il contenitore con le copie count di elementi con valore value.

Original:

Constructs the container with count copies of elements with value value.

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3)

Costruisce il contenitore con count valore inizializzato (default costruito, per le classi) le istanze di T. Non sono disponibili copie sono fatte.

Original:

Constructs the container with count value-initialized (default constructed, for classes) instances of T. No copies are made.

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4)

Costruisce il contenitore con il contenuto della [first, last) gamma.

Original:

Constructs the container with the contents of the range [first, last).

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5)

Copia costruttore. Costruisce il contenitore con la copia del contenuto di other. Se alloc non viene fornito, allocatore viene ottenuto chiamando std::allocator_traits<allocator_type>::select_on_copy_construction(other).

Original:

Copy constructor. Constructs the container with the copy of the contents of other. If alloc is not provided, allocator is obtained by calling std::allocator_traits<allocator_type>::select_on_copy_construction(other).

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6)

Sposta costruttore. Costruisce il contenitore con il contenuto di other con semantica spostamento. Se alloc non viene fornito, si ottiene allocatore di movimento costruzione dal allocatore appartenenti a other.

Original:

Move constructor. Constructs the container with the contents of other using move semantics. If alloc is not provided, allocator is obtained by move-construction from the allocator belonging to other.

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7)

Costruisce il contenitore con il contenuto della lista di inizializzazione init.

Original:

Constructs the container with the contents of the initializer list init.

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Parametri

alloc	-	allocatore da utilizzare per tutte le allocazioni di memoria di questo contenitore Original: allocator to use for all memory allocations of this container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
count	-	la dimensione del contenitore Original: the size of the container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
value	-	il valore per inizializzare elementi del contenitore Original: the value to initialize elements of the container with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
first, last	-	l'intervallo per copiare gli elementi da Original: the range to copy the elements from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
other	-	un altro contenitore per essere utilizzato come sorgente per inizializzare gli elementi del contenitore Original: another container to be used as source to initialize the elements of the container with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
init	-	inizializzatore elenco per inizializzare gli elementi del contenitore Original: initializer list to initialize the elements of the container with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Type requirements
- InputIt must meet the requirements of InputIterator.

Complessità

1)

Constant

Original:

Constant

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2-3)

Lineare in count

Original:

Linear in count

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4)

Lineare di distanza tra first e last

Original:

Linear in distance between first and last

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5)

Lineare in dimensione other

Original:

Linear in size of other

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6)

Constant. Se alloc è dato e alloc != other.get_allocator(), quindi lineare.

Original:

Constant. If alloc is given and alloc != other.get_allocator(), then linear.

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7)

Lineare in dimensione init

Original:

Linear in size of init

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Esempio

#include <vector>
#include <string>
 
int main() 
{
    // c++11 initializer list syntax:
    std::vector<std::string> words1 {"the", "frogurt", "is", "also", "cursed"};
 
    // words2 == words1
    std::vector<std::string> words2(words1.begin(), words1.end());
 
    // words3 == words1
    std::vector<std::string> words3(words1);
 
    // words4 is {"Mo", "Mo", "Mo", "Mo", "Mo"}
    std::vector<std::string> words4(5, "Mo");
 
    return 0;
}

Vedi anche

assign	assegna valori al contenitore Original: assigns values to the container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)
operator=	assegna valori al contenitore Original: assigns values to the container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (membro pubblico funzione)