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std::stop_token::stop_token

stop_token() noexcept;
 (1) (since C++20) 
stop_token( const stop_token& other ) noexcept;
 (2) (since C++20) 
stop_token( stop_token&& other ) noexcept;
 (3) (since C++20)

Constructs a new stop_token object.

1) Constructs an empty stop_token with no associated stop-state.
2) Copy constructor. Constructs a stop_token whose associated stop-state is the same as that of other.
3) Move constructor. Constructs a stop_token whose associated stop-state is the same as that of other; other is left empty.

Parameters

other - another stop_token object to construct this stop_token object with

Postconditions

1) stop_possible() and stop_requested() are both false
2) *this and other share the same associated stop-state and compare equal
3) *this has other's previously associated stop-state, and other.stop_possible() is false

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