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std::back_insert_iterator<Container>::back_insert_iterator

constexpr back_insert_iterator() noexcept = default;
 (1) (since C++20)
(2) 
explicit back_insert_iterator( Container& c );
 (until C++20) 
constexpr explicit back_insert_iterator( Container& c );
 (since C++20)
1) Initializes the underlying pointer to container with nullptr. (since C++20)
2) Initializes the underlying pointer to the container to std::addressof(c).

Parameters

c - container to initialize the inserter with

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