# std::packaged_task<R(Args...)>::operator=

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< cpp‎ | thread‎ | packaged task

packaged_task& operator=( const packaged_task& ) = delete; | (1) | (since C++11)
packaged_task& operator=( packaged_task&& rhs ) noexcept; | (2) | (since C++11)

1) Copy assignment operator is deleted, `std::packaged_task` is move-only.
2) Releases the shared state, if any, destroys the previously-held task, and moves the shared state and the task owned by `rhs` into *this. `rhs` is left without a shared state and with a moved-from task.

### Parameters

rhs | - | the `std::packaged_task` to move from

### Defect reports

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

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
LWG 2067 | C++11 | the deleted copy assignment operator took reference to non-const | made const

### Example

| This section is incomplete Reason: no example

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