std::stop_source& operator=( const std::stop_source& other ) noexcept;
(1) (since C++20)
std::stop_source& operator=( std::stop_source&& other ) noexcept;
(2) (since C++20)

Replaces the stop-state with that of other.

1) Copy-assigns the stop-state of other to that of *this. Equivalent to stop_source(other).swap(*this).
2) Move-assigns the stop-state of other to that of *this. After the assignment, *this contains the previous stop-state of other, and other has no stop-state. Equivalent to stop_source(std::move(other)).swap(*this).


other - another stop_source object to share the stop-state with to or acquire the stop-state from

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