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    std::promise::get_future

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    < cpp‎ | thread‎ | promise

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    C++
     
    Thema Support-Bibliothek
    Threads
    Original:
    Threads
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    thread(C++11)
    this_thread Namespace
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    this_thread namespace
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    get_id(C++11)
    yield(C++11)
    sleep_for(C++11)
    sleep_until(C++11)
    Gegenseitigen Ausschluss
    Original:
    Mutual exclusion
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    mutex(C++11)
    timed_mutex(C++11)
    Generische Sperrverwaltung
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    Generic lock management
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    lock(C++11)
    try_lock(C++11)
    defer_lock
    try_to_lock
    adopt_lock    		(C++11)
    (C++11)
    (C++11)
    Zustand Variablen
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    Condition variables
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    condition_variable(C++11)
    condition_variable_any(C++11)
    notify_all_at_thread_exit(C++11)
    cv_status(C++11)
    Futures
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    Futures
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    promise(C++11)
    future(C++11)
    shared_future(C++11)
    packaged_task(C++11)
    async(C++11)
     
    std::promise
    Member-Funktionen
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    Member functions
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    promise::promise
    promise::~promise
    promise::operator=
    promise::swap
    Erste das Ergebnis
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    Getting the result
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    promise::get_future
    Setzen Sie das Ergebnis
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    Setting the result
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    promise::set_value
    promise::set_value_at_thread_exit
    promise::set_exception
    promise::set_exception_at_thread_exit
     
    std::future<R> get_future();
    		(seit C++11)
    Gibt eine zukünftige Objekt mit dem gleichen gemeinsamen Staat als *this assoziiert .
    Original:
    Returns a future object associated with the same shared state as *this.
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    Exception wird ausgelöst, wenn *this hat keine gemeinsame Staat oder get_future bereits aufgerufen wurde .
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    Exception is thrown if *this has no shared state or get_future has already been called.
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    [Bearbeiten]Parameter

    (None)
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    (none)
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    [Bearbeiten]Rückgabewert

    Eine Zukunft, die sich auf dem gemeinsamen Stand der *this
    Original:
    A future referring to the shared state of *this
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    [Bearbeiten]Ausnahmen

    std::future_error auf den folgenden Bedingungen:
    Original:
    std::future_error on the following conditions:
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    • *this hat keinen gemeinsamen Staat. Der Fehler Kategorie wird no_state gesetzt .
      Original:
      *this has no shared state. The error category is set to no_state.
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    • get_future() bereits auf ein Versprechen mit der gleichen gemeinsamen Staat als *this aufgerufen wurde. Der Fehler Kategorie wird future_already_retrieved gesetzt .
      Original:
      get_future() has already been called on a promise with the same shared state as *this. The error category is set to future_already_retrieved.
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