Namespace
Varianti

std::list::size

Da cppreference.com.
< cpp‎ | container‎ | list

 
 
 
std::list
Membri funzioni
Original:
Member functions
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list::list
list::~list
list::operator=
list::assign
list::get_allocator
Elemento accesso
Original:
Element access
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list::front
list::back
Iteratori
Original:
Iterators
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list::begin
list::cbegin

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

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

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

(C++11)
Capacità
Original:
Capacity
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list::empty
list::size
list::max_size
Modificatori
Original:
Modifiers
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list::clear
list::insert
list::emplace(C++11)
list::erase
list::push_front
list::emplace_front(C++11)
list::pop_front
list::push_back
list::emplace_back(C++11)
list::pop_back
list::resize
list::swap
Operazioni
Original:
Operations
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list::merge
list::splice
list::remove
list::remove_if
list::reverse
list::unique
list::sort
 
size_type size() const;

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

Indice

[modifica] Parametri

(Nessuno)
Original:
(none)
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[modifica] Valore di ritorno

il numero di elementi nel contenitore
Original:
the number of elements in the container
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[modifica] Eccezioni

noexcept specification:  
noexcept
  (dal C++11)

[modifica] Complessità

Constant or linear (C fino + 11)

Constant (dal C++11)

[modifica] Esempio

The following code uses size to display the number of elements in a std::list<int>:

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

Output:

nums contains 4 elements.

[modifica] Vedi anche

verifica se il contenitore è vuoto
Original:
checks whether the container is empty
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(membro pubblico funzione) [edit]
restituisce il massimo numero possibile di elementi
Original:
returns the maximum possible number of elements
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(membro pubblico funzione) [edit]
changes the number of elements stored
(membro pubblico funzione) [edit]