33 Concurrency support library [thread]

33.3 Stop tokens [thread.stoptoken]

33.3.10 Class template inplace_stop_callback [stopcallback.inplace]

33.3.10.2 Constructors and destructor [stopcallback.inplace.cons]

template<class Initializer>
  explicit inplace_stop_callback(inplace_stop_token st, Initializer&& init)
    noexcept(is_nothrow_constructible_v<CallbackFn, Initializer>);

Constraints: constructible_from<CallbackFn, Initializer> is satisfied.

Effects: Initializes callback-fn with std::forward<Initializer>(init) and executes a stoppable callback registration ([stoptoken.concepts]).

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~inplace_stop_callback();

Effects: Executes a stoppable callback deregistration ([stoptoken.concepts]).