std::array::operator[]
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| reference operator[]( size_type pos ); |
(depuis C++11) | |
| const_reference operator[]( size_type pos ) const; |
(depuis C++11) | |
Renvoie une référence à l'élément à
pos emplacement spécifié. Aucune vérification de limites est effectuée .Original:
Returns a reference to the element at specified location
pos. No bounds checking is performed.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Sommaire |
[modifier] Paramètres
| pos | - | position de l'élément de retour
Original: position of the element to return The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[modifier] Retourne la valeur
une référence à l'élément souhaité
Original:
reference to the requested element
The text has been machine-translated via Google Translate.
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[modifier] Complexité
Constante
Original:
Constant
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[modifier] Exemple
Le code suivant utilise
operator[] lire et d'écrire dans un std::array<int>:
Original:
The following code uses
operator[] read from and write to a std::array<int>:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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#include <array> #include <iostream> int main() { std::array<int> numbers {2, 4, 6, 8}; std::cout << "Second element: " << numbers[1] << '\n'; numbers[0] = 5; std::cout << "All numbers:"; for (auto i : numbers) { std::cout << ' ' << i; } std::cout << '\n'; }
Résultat :
Second element: 4 All numbers: 5 4 6 8
[modifier] Voir aussi
| accède à l'élément spécifié avec vérification de bornes (fonction membre publique) | |
