std::unordered_multimap::size – cppreference.com
Aus cppreference.com
<metanoindex/>
<tbody> </tbody>
|
|
(seit C++11) | |
Returns the number of elements in the container, i.e. std::distance(begin(), end()).
Parameter
(None)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Rückgabewert
die Anzahl der Elemente in dem Behälter
Original:
the number of elements in the container
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Ausnahmen
Komplexität
Constant
Beispiel
The following code uses size to display the number of elements in a std::unordered_multimap<int>:
#include <unordered_multimap> #include <iostream> int main() { std::unordered_multimap<int, char> nums {{1, 'a'}, {3, 'b'}, {5, 'c'}, {7, 'd'}}; std::cout << "nums contains " << nums.size() << " elements.\n"; }
Output:
nums contains 4 elements.
Siehe auch
prüft, ob der Container leer ist Original: checks whether the container is empty The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |
gibt die maximal mögliche Anzahl von Elementen Original: returns the maximum possible number of elements The text has been machine-translated via Google Translate. (öffentliche Elementfunktion) [edit] | |