Namespace
Varianti

std::promise::get_future

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< cpp‎ | thread‎ | promise

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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
Original:
Mutual exclusion
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mutex(C++11)
timed_mutex(C++11)
Blocco di gestione generico
Original:
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::promise
Membri funzioni
Original:
Member functions
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promise::promise
promise::~promise
promise::operator=
promise::swap
Ottenere il risultato
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Getting the result
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promise::get_future
Impostazione del risultato
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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();
 (dal C++11)
Restituisce un oggetto futuro associato con lo stesso stato condiviso come *this.
Original:
Returns a future object associated with the same shared state as *this.
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Eccezione viene generata se *this non ha stato condiviso o get_future è già stato chiamato.
Original:
Exception is thrown if *this has no shared state or get_future has already been called.
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[modifica] Parametri

(Nessuno)
Original:
(none)
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[modifica] Valore di ritorno

Un futuro facendo riferimento allo stato condiviso di *this
Original:
A future referring to the shared state of *this
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[modifica] Eccezioni

std::future_error alle seguenti condizioni:
Original:
std::future_error on the following conditions:
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  • *this non ha stato condiviso. La categoria di errore è impostato no_state.
    Original:
    *this has no shared state. The error category is set to no_state.
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  • get_future() è già stato chiamato su una promessa con lo stesso stato condiviso come *this. La categoria di errore è impostato future_already_retrieved.
    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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