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std::list::size

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C++
 
Container-Bibliothek
 
std::list
Member-Funktionen
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Member functions
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list::list
list::~list
list::operator=
list::assign
list::get_allocator
Elementzugriff zerstört
Original:
Element access
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list::front
list::back
Iteratoren
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)
Kapazität
Original:
Capacity
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list::empty
list::size
list::max_size
Modifiers
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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
Operations
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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()).

Inhaltsverzeichnis

[Bearbeiten] Parameter

(None)
Original:
(none)
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[Bearbeiten] Rückgabewert

die Anzahl der Elemente in dem Behälter
Original:
the number of elements in the container
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[Bearbeiten] Ausnahmen

noexcept specification:  
noexcept
  (seit C++11)

[Bearbeiten] Komplexität

Constant or linear (bis C + +11)

Constant (seit C++11)

[Bearbeiten] Beispiel

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.

[Bearbeiten] Siehe auch
prüft, ob der Container leer ist
Original:
checks whether the container is empty
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(öffentliche Elementfunktion) [edit]
gibt die maximal mögliche Anzahl von Elementen
Original:
returns the maximum possible number of elements
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(öffentliche Elementfunktion) [edit]
ändert die Anzahl der gespeicherten Elemente
(öffentliche Elementfunktion) [edit]
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