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std::front_insert_iterator<Container>::operator=

From cppreference.com
 
 
Iterator library
Iterator concepts
Iterator primitives
Iterator adaptors
Stream iterators
Iterator customization points
Iterator operations
(C++11)
(C++11)
Range access
(C++11)(C++14)
(C++11)(C++14)
(C++17)(C++20)
(C++14)(C++14)
(C++14)(C++14)
(C++17)
(C++17)
 
 
(1)
front_insert_iterator<Container>&
    operator=( typename Container::const_reference value );
(until C++11)
front_insert_iterator<Container>&
    operator=( const typename Container::value_type& value );
(since C++11)
(until C++20)
constexpr front_insert_iterator<Container>&
    operator=( const typename Container::value_type& value );
(since C++20)
(2)
front_insert_iterator<Container>&
    operator=( typename Container::value_type&& value );
(since C++11)
(until C++20)
constexpr front_insert_iterator<Container>&
    operator=( typename Container::value_type&& value );
(since C++20)

Inserts the given value value to the container.

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

[edit] Parameters

value - the value to insert

[edit] Return value

*this


[edit] Example

#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; // calls q.push_front(i)
 
    for (auto& elem : q) std::cout << elem << ' ';
}

Output:

9 8 7 6 5 4 3 2 1 0