std::front_inserter – cppreference.com

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definiert in Header `<iterator>`

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

front_inserter ist eine Komfortfunktion Vorlage, die eine std::front_insert_iterator für den Container c mit dem Typ von der Art der Argumentation ableiten konstruiert .

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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Parameter

Container, der eine push_front Vorgang unterstützt

Original:

container that supports a push_front operation

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Rückgabewert

Ein std::front_insert_iterator die zur Elemente am Anfang des Behälters c hinzugefügt werden können

Original:

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

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Mögliche Implementierung

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

Beispiel

#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 << ' ';
}

Output:

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

Siehe auch


front_insert_iterator	Iterator Adapter für die Zuführung an der Vorderseite eines Behälters Original: iterator adaptor for insertion at the front 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. (Klassen-Template) [edit]

back_inserter	schafft eine std::back_insert_iterator des Typs aus dem Argument abgeleitet Original: creates a std::back_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. (Funktions-Template) [edit]

inserter	schafft eine std::insert_iterator des Typs aus dem Argument abgeleitet 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. (Funktions-Template) [edit]