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      std::coroutine_handle<Promise>::promise

      From cppreference.com
      <cpp‎ |coroutine‎ |coroutine handle
       
       
      Utilities library
       
      Coroutine support
      Coroutine traits
      Coroutine handle
      No-op coroutines
      Trivial awaitables
      Range generators
      (C++23)
       
       
      Member of the primary template
      Promise& promise()const;
      (since C++20)
      Member of specializationstd::coroutine_handle<std::noop_coroutine_promise>
      std::noop_coroutine_promise& promise()constnoexcept;
      (since C++20)

      Obtains a reference to the promise object.

      The behavior is undefined if*this does not refer to a coroutine whose promise object has not been destroyed.

      This function is not provided for the specializationstd::coroutine_handle<>.

      Contents

      [edit]Parameters

      (none)

      [edit]Return value

      A reference to the promise object.

      [edit]Notes

      The promise object of a no-op coroutine is not destroyed as long as there is somestd::noop_coroutine_handle referring to the coroutine.

      [edit]See also

      [static]
      creates acoroutine_handle from the promise object of a coroutine
      (public static member function)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/coroutine/coroutine_handle/promise&oldid=162093"

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