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

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std::packaged_task

Member functions
packaged_task::packaged_task
packaged_task::~packaged_task
packaged_task::operator=
packaged_task::valid
packaged_task::swap
Getting the result
packaged_task::get_future
Execution
packaged_task::operator()
packaged_task::make_ready_at_thread_exit
packaged_task::reset
Non-member functions
swap(std::packaged_task)
Helper classes
uses_allocator<std::packaged_task> (until C++17)
Deduction guides(C++17)

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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 byrhs into*this.rhs is left without a shared state and with a moved-from task.