std::packaged_task<R(Args...)>::operator=
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< cpp | thread | packaged task
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std::packaged_task
Member functions
packaged_task::operator=
Getting the result
Execution
Non-member functions
Helper classes
(until C++17)
Deduction guides (C++17)
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.
[edit] Parameters
rhs
-
the
std::packaged_task to move from
[edit] Example
This section is incomplete
Reason: no example
Reason: no example
[edit] 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 parameter type of the copy assignment operator was packaged_task&
|
added const |