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std::front_inserter — cppreference.com

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Déclaré dans l'en-tête

<iterator>

template< class Container > std::front_insert_iterator<Container> front_inserter( Container& c);

front_inserter est un modèle de fonction de confort qui construit un std::front_insert_iterator pour la c récipient avec le type déduit du type de l'argument .

Original:

front_inserter is a convenience function template that constructs a std::front_insert_iterator for the container c with the type deduced from the type of the argument.

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Paramètres

c -

conteneur qui prend en charge une opération de push_front

Original:

container that supports a push_front operation

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Retourne la valeur

Un std::front_insert_iterator qui peut être utilisé pour ajouter des éléments au début de l'c récipient

Original:

A std::front_insert_iterator which can be used to add elements to the beginning of the container c

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Mise en œuvre possible

template< class Container >
std::front_insert_iterator<Container> front_inserter( Container& c)
{
    return std::front_insert_iterator<Container>(c);
}

Exemple

#include <iostream>
#include <deque>
#include <algorithm>
#include <iterator>
int main()
{
    std::deque<int> v{1,2,3,4,5,6,7,8,9,10};
    std::fill_n(std::front_inserter(v), 3, -1);
    for(int n : v)
        std::cout << n << ' ';
}

Résultat :

-1 -1 -1 1 2 3 4 5 6 7 8 9 10

Voir aussi

Adaptateur itérateur pour l'insertion à l'avant d'un conteneur

Original:

iterator adaptor for insertion at the front of a container

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(classe générique) [edit]

crée un std::back_insert_iterator de type inféré à partir de l'argument

Original:

creates a std::back_insert_iterator of type inferred from the argument

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(fonction générique) [edit]

crée un std::insert_iterator de type inféré à partir de l'argument

Original:

creates a std::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]