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    std::promise::set_value

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    <metanoindex/>

     
    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_guard(C++11)
    unique_lock(C++11)
    defer_lock_t
    try_to_lock_t
    adopt_lock_t    		(C++11)
    (C++11)
    (C++11)
    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
    Original:
    Futures
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    promise(C++11)
    future(C++11)
    shared_future(C++11)
    packaged_task(C++11)
    async(C++11)
    launch(C++11)
    future_status(C++11)
    future_error(C++11)
    future_category(C++11)
    future_errc(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
     
    <tbody> </tbody>
    void set_value( const R& value );
    		 (1) (Mitglied nur von generischen promise Vorlage)
    (seit C++11)
    void set_value( R&& value );
    		 (2) (Mitglied nur von generischen promise Vorlage)
    (seit C++11)
    void set_value( R& value );
    		 (3) (Mitglied nur promise<R&> Template-Spezialisierung)
    (seit C++11)
    void set_value()
    		 (4) (Mitglied nur promise<void> Template-Spezialisierung)
    (seit C++11)
    Speichert die value in den gemeinsamen Staat und macht der Staat bereit .
    Original:
    Stores the value into the shared state and makes the state ready.
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    Die Operation ist atomar, dh es verhält sich, als ob sie eine einzige Mutex mit dem Versprechen Objekt zugeordnet erwerben während der Aktualisierung das Versprechen Objekt .
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    The operation is atomic, i.e. it behaves as though they acquire a single mutex associated with the promise object while updating the promise object.
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    Eine Ausnahme wird ausgelöst, wenn es keine gemeinsamen Staat oder die gemeinsamen Staat bereits speichert einen Wert oder eine Ausnahme .
    Original:
    An exception is thrown if there is no shared state or the shared state already stores a value or exception.
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    Parameter

    value -
    Wert, der im gemeinsamen Staat zu speichern
    Original:
    value to store in the shared state
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    Rückgabewert

    (None)
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    (none)
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    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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    • Der gemeinsame Staat bereits speichert einen Wert oder Ausnahme. Der Fehler Kategorie wird promise_already_satisfied gesetzt .
      Original:
      The shared state already stores a value or exception. The error category is set to promise_already_satisfied.
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    Zusätzlich:
    Original:
    Additionally:
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    1-2)
    Jede Ausnahme von der Kopie Konstruktor value geworfen
    Original:
    Any exception thrown by the copy constructor of value
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    3)
    Jede Ausnahme durch den Umzug Konstruktor value geworfen
    Original:
    Any exception thrown by the move constructor of value
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    Beispiel

    This section is incomplete
    Reason: no example

    Siehe auch
    legt das Ergebnis an eine Ausnahme anzeigen
    Original:
    sets the result to indicate an exception
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    (öffentliche Elementfunktion) [edit]