std::front_insert_iterator — cppreference.com

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Déclaré dans l'en-tête `<iterator>`
`template< class Container > class front_insert_iterator : public std::iterator< std::output_iterator_tag, void,void,void,void >`

std::front_insert_iterator est un itérateur de sortie qui est précédée d'éléments dans un conteneur pour lequel il a été construit, en utilisant la fonction du conteneur push_front() membre lorsque l'itérateur (que ce soit déréférencé ou non) est assigné. L'incrémentation du std::front_insert_iterator est un no-op .

Original:

std::front_insert_iterator is an output iterator that prepends elements to a container for which it was constructed, using the container's push_front() member function whenever the iterator (whether dereferenced or not) is assigned to. Incrementing the std::front_insert_iterator is a no-op.

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Types de membres


Type du membre	Définition

`container_type`	`Container`

Fonctions membres

Modèle:cpp/iterator/inserter/dsc operator++


(constructeur)	construit un nouveau `front_insert_iterator` Original: constructs a new `front_insert_iterator` 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) [edit]

operator=	insère un objet dans le récipient associé Original: inserts an object into the associated container 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) [edit]

operator*	no-op (fonction membre publique) [edit]

Objets membres


Nom du membre Original: Member name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition

`container` ( protégée Original: protected The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. )	un pointeur de `Container` type Original: a pointer of type `Container` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Inherited from std::iterator

Member types


Type du membre	Définition

`value_type`	`void`

`difference_type`	`void`

`pointer`	`void`

`reference`	`void`

`iterator_category`	`std::output_iterator_tag`

Exemple

#include <vector>
#include <deque>
#include <iostream>
#include <iterator>
#include <algorithm>
int main()
{
    std::vector<int> v{1,2,3,4,5};
    std::deque<int> d;
    std::copy(v.begin(), v.end(),
              std::front_insert_iterator<std::deque<int>>(d)); // or std::front_inserter(d)
    for(int n : d)
        std::cout << n << ' ';
    std::cout << '\n';
}

Résultat :

Voir aussi


front_inserter	crée un std::front_insert_iterator de type inféré à partir de l'argument Original: creates a std::front_insert_iterator of type inferred from the argument The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction générique) [edit]

back_insert_iterator	Adaptateur itérateur pour l'insertion à la fin d'un récipient Original: iterator adaptor for insertion at the end of a container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe générique) [edit]

insert_iterator	Adaptateur itérateur pour l'insertion dans un récipient Original: iterator adaptor for insertion into a container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe générique) [edit]