# std::back_insert_iterator<Container>::back_insert_iterator

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< cpp‎ | iterator‎ | back insert iterator

explicit back_insert_iterator( Container& c ); |  | (until C++20)
constexpr explicit back_insert_iterator( Container& c ); |  | (since C++20)

Initializes the underlying pointer to the container to std::addressof(c).

### Parameters

c | - | container to initialize the inserter with

### Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
P2325R3 | C++20 | default constructor was provided as C++20 iterators must be `default_initializable` | removed along with the requirement

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