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    std::future_errc

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    <metanoindex/>

     
    C++
     
    Discussione libreria di supporto
    Threads
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    Threads
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    thread(C++11)
    this_thread spazio dei nomi
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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)
    Mutua esclusione
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    Mutual exclusion
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    mutex(C++11)
    timed_mutex(C++11)
    Blocco di gestione generico
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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)
    Condizioni variabili
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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 classi
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    Helper classes
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    is_error_code_enum
    Non membri funzioni
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    Non-member functions
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    make_error_code
    make_error_condition
     
    <tbody> </tbody>
    Elemento definito nell'header <ios>
    enum class future_errc { broken_promise, future_already_retrieved, promise_already_satisfied, no_state };
    		 (dal 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.

    Membri costanti

    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

    Helper classi

    (C++11)
    		 extends the type trait std::is_error_code_enum to identify future error codes
    (classe template)

    Non membri funzioni

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

    Esempio

    This section is incomplete
    Reason: no example

    Vedi anche

    (C++11)
    in possesso di un dipendente dalla piattaforma codice di errore
    Original:
    holds a platform-dependent error code
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    (classe) [modifica]
    (C++11)
    contiene un codice di errore portatile
    Original:
    holds a portable error code
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    (classe) [modifica]