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    std::future_errc

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    C++
     
    Thema Support-Bibliothek
    Threads
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    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)
    launch(C++11)
    future_status(C++11)
    future_error(C++11)
    future_category(C++11)
    future_errc(C++11)
     
    std::future_errc
    Helper-Klassen
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    Helper classes
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    is_error_code_enum
    Non-Member-Funktionen
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    Non-member functions
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    make_error_code
    make_error_condition
     
    definiert in Header <ios>
    enumclass future_errc {

        broken_promise,
        future_already_retrieved,
        promise_already_satisfied,
        no_state

    };
    		(seit C++11)

    The scoped enumeration std::future_errc defines the error codes reported by std::future and related classes in std::future_error exception objects. Only four error codes are required, although the implementation may define additional error codes. Because the appropriate specialization of std::is_error_code_enum is provided, values of type std::future_errc are implicitly convertible to std::error_code.

    Inhaltsverzeichnis

    [Bearbeiten]Mitglied Konstanten

    Constant
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    Constant
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    		 Explanation
    broken_promise the asynchronous task abandoned its shared state
    future_already_retrieved the contents of shared state were already accessed through std::future
    promise_already_satisfied attempt to store a value in the shared state twice
    no_state attempt to access std::promise or std::future without an associated shared state

    [Bearbeiten]Helper-Klassen

    (C++11)
    		 extends the type trait std::is_error_code_enum to identify future error codes
    (Klassen-Template)

    [Bearbeiten]Non-Member-Funktionen

    (C++11)
    		 constructs a future error code
    (Funktion)
    (C++11)
    		 constructs a future error_condition
    (Funktion)

    [Bearbeiten]Beispiel

    This section is incomplete
    Reason: no example

    [Bearbeiten]Siehe auch

    (C++11)
    hält einen plattformabhängigen Fehlercode
    Original:
    holds a platform-dependent error code
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    (Klasse)[edit]
    (C++11)
    hält einen tragbaren Fehlercode
    Original:
    holds a portable error code
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    (Klasse)[edit]
    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/thread/future_errc&oldid=30049“
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