std::insert_iterator<Container>::operator=

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Iterator library
Iterator concepts
Iterator primitives
Algorithm concepts and utilities
Indirect callable concepts
Common algorithm requirements
(C++20)
(C++20)
(C++20)
Utilities
(C++20)
Iterator adaptors
Range access
(C++11)(C++14)
(C++14)(C++14)
(C++11)(C++14)
(C++14)(C++14)
(C++17)(C++20)
(C++17)
(C++17)
(1)
insert_iterator<Container> &
    operator= ( typename Container:: const_reference value ) ;
(until C++11)
insert_iterator<Container> &
    operator= ( const typename Container:: value_type & value ) ;
(since C++11)
(until C++20)
constexpr insert_iterator<Container> &
    operator= ( const typename Container:: value_type & value ) ;
(since C++20)
(2)
insert_iterator<Container> &
    operator= ( typename Container:: value_type && value ) ;
(since C++11)
(until C++20)
constexpr insert_iterator<Container> &
    operator= ( typename Container:: value_type && value ) ;
(since C++20)

Inserts the given value value to the container.

1) Results in iter = container- >insert(iter, value) ; ++iter;
2) Results in iter = container- >insert(iter, std:: move (value) ) ; ++iter;

Parameters

value - the value to insert

Return value

*this

Notes

This function exploits the signature compatibility between hinted insert for associative containers (such as std::set::insert) and positional insert for sequential containers (such as std::vector::insert

Example

#include <deque>
#include <iostream>
#include <iterator>
 
int main()
{
    std::deque<int> q;
    std::insert_iterator<std::deque<int>> it(q, q.begin());
 
    for (int i = 0; i < 10; ++i)
        it = i; // inserts i
 
    for (auto& elem : q)
        std::cout << elem << ' ';
    std::cout << '\n';
}

Output:

0 1 2 3 4 5 6 7 8 9