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std::front_insert_iterator<Container>:: operator=

From cppreference.net

C++
Iterator library
Iterator concepts
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Algorithm concepts and utilities
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(C++20)
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(C++20)
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(C++20)
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(C++11) (C++14)
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(C++17) (C++20)
(C++17)
(C++17)
std::front_insert_iterator
(1)
front_insert_iterator < Container > &
operator = ( typename Container :: const_reference value ) ;
(C++11 이전)
front_insert_iterator < Container > &
operator = ( const typename Container :: value_type & value ) ;
(C++11 이후)
(C++20 이전)
constexpr front_insert_iterator < Container > &
operator = ( const typename Container :: value_type & value ) ;
(C++20 이후)
(2)
front_insert_iterator < Container > &
operator = ( typename Container :: value_type && value ) ;
(C++11 이후)
(C++20 이전)
constexpr front_insert_iterator < Container > &
operator = ( typename Container :: value_type && value ) ;
(C++20 이후)

주어진 값 value 를 컨테이너에 삽입합니다.

1) 결과는 container - > push_front ( value ) 입니다.
2) 결과적으로 container - > push_front ( std :: move ( value ) ) 가 실행됩니다.

매개변수

value - 삽입할 값

반환값

* this

예제

이 코드 실행 
#include <deque>
#include <iostream>
#include <iterator>
int main()
{
    std::deque<int> q;
    std::front_insert_iterator<std::deque<int>> it(q);
    for (int i = 0; i < 10; ++i)
        it = i; // calls q.push_front(i)
    for (auto& elem : q)
        std::cout << elem << ' ';
    std::cout << '\n';
}

출력: 

9 8 7 6 5 4 3 2 1 0