std::forward_list::before_begin, std::forward_list::cbefore_begin
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<metanoindex/>
<tbody> </tbody> iterator before_begin(); |
(depuis C++11) | |
const_iterator before_begin() const; |
(depuis C++11) | |
const_iterator cbefore_begin() const; |
(depuis C++11) | |
Retourne un itérateur à l'élément avant le premier élément du conteneur. Cet élément agit comme un espace réservé, tente d'y accéder en résulte un comportement indéfini. Les cas d'utilisation sont uniquement des fonctions
insert_after(), emplace_after(), erase_after(), splice_after() et l'opérateur d'incrémentation: incrémentation de la commencer avant itérateur iterator donne exactement le même obtenu à partir begin() / cbegin() .Original:
Returns an iterator to the element before the first element of the container. This element acts as a placeholder, attempting to access it results in undefined behavior. The only usage cases are in functions
insert_after(), emplace_after(), erase_after(), splice_after() and the increment operator: incrementing the before-begin iterator gives exactly the same iterator as obtained from begin()/cbegin().The text has been machine-translated via Google Translate.
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Paramètres
(Aucun)
Original:
(none)
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Retourne la valeur
itérateur à l'élément avant le premier élément
Original:
iterator to the element before the first element
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Exceptions
1-3)
Complexité
Constante
Original:
Constant
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Voir aussi
retourne un itérateur au début Original: returns an iterator to the beginning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique) | |
retourne un itérateur à la fin Original: returns an iterator to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction membre publique) | |