std::back_inserter

 

C++

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Понятия (концепции)

Утилиты

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Контейнеры

Алгоритмы

Итераторы

Работа с числами

Ввод / вывод

Локализация

Регулярные выражения (C++11)

Атомарные примитивы (C++11)

Потоки (C++11)

 

Iterator библиотеки

Iterator примитивов Original: Iterator primitives The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
iterator_traits
input_iterator_tag output_iterator_tag forward_iterator_tag bidirectional_iterator_tag random_access_iterator_tag
iterator
Iterator адаптеров Original: Iterator adaptors The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
reverse_iterator
move_iterator (C++11) back_insert_iterator front_insert_iterator insert_iterator	make_move_iterator (C++11) back_inserter front_inserter inserter
Поток итераторы Original: Stream iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Iterator операций Original: Iterator operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
advance
distance
prev (C++11)
next (C++11)
Диапазон доступа Original: Range access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
begin (C++11)
end (C++11)

 

Заголовочный файл <iterator>
template< class Container > std::back_insert_iterator<Container> back_inserter( Container& c);

back_inserter является шаблоном удобная функция, которая строит std::back_insert_iterator для контейнера c с типом выводится из типа аргумента.

Original:

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

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You can help to correct and verify the translation. Click here for instructions.

Параметры

c

-

контейнер, который поддерживает push_back операции Original: container that supports a push_back operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Возвращаемое значение

std::back_insert_iterator который может быть использован для добавления элементов в конец контейнера c

Original:

A std::back_insert_iterator which can be used to add elements to the end of the container c

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Возможная реализация

template< class Container > std::back_insert_iterator<Container> back_inserter( Container& c) { return std::back_insert_iterator<Container>(c); }

Пример

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

Вывод:

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

См. также

back_insert_iterator	Итератор адаптер для вставки в конце контейнера 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. (шаблон класса)
front_inserter	создает std::front_insert_iterator типа выводится из аргументов 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. (шаблон функции)
inserter	создает std::insert_iterator типа выводится из аргументов 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. (шаблон функции)