# std::front_insert_iterator<Container>::operator=

< cpp‎ | iterator‎ | front insert iterator

| (1) |
front_insert_iterator<Container>& operator=( typename Container::const_reference value ); |  | (C++11 前)
front_insert_iterator<Container>& operator=( const typename Container::value_type& value ); |  | (C++11 起) (C++20 前)
constexpr front_insert_iterator<Container>& operator=( const typename Container::value_type& value ); |  | (C++20 起)
| (2) |
front_insert_iterator<Container>& operator=( typename Container::value_type&& value ); |  | (C++11 起) (C++20 前)
constexpr front_insert_iterator<Container>& operator=( typename Container::value_type&& value ); |  | (C++20 起)

插入给定的 `value` 到迭代器。

1) 导致 container->push_front(value)
2) 导致 container->push_front(std::move(value))

### 参数

value | - | 要插入的值

### 返回值

*this

### 示例

    #include <iostream>
    #include <iterator>
    #include <deque>

    int main()
    {
        std::deque<int> q;
        std::front_insert_iterator< std::deque<int> > it(q);

        for (int i=0; i<10; ++i)
            it = i; // 调用 q.push_front(i)

        for (auto& elem : q) std::cout << elem << ' ';
    }

输出：

    9 8 7 6 5 4 3 2 1 0