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std::promise::get_future

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< cpp‎ | thread‎ | promise

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C++
 
Bibliothèque de support fil
Threads
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Threads
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thread (C++11)
this_thread espace de noms
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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)
L'exclusion mutuelle
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Mutual exclusion
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mutex (C++11)
timed_mutex (C++11)
Gestion du verrouillage générique
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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)
Les variables de condition
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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
Les fonctions membres
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Member functions
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promise::promise
promise::~promise
promise::operator=
promise::swap
Obtenir le résultat
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Getting the result
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promise::get_future
Réglage du résultat
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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();
 (depuis C++11)
Retourne un objet futur associé à l'état partagé comme *this .
Original:
Returns a future object associated with the same shared state as *this.
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Exception est levée si *this a aucun état partagé ou get_future a déjà été appelé .
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Exception is thrown if *this has no shared state or get_future has already been called.
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[modifier] Paramètres

(Aucun)
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(none)
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[modifier] Retourne la valeur

Un avenir se référant à l'état partagé de *this
Original:
A future referring to the shared state of *this
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[modifier] Exceptions

std::future_error dans les conditions suivantes:
Original:
std::future_error on the following conditions:
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  • *this n'a pas d'état partagé. La catégorie d'erreur est mis à no_state .
    Original:
    *this has no shared state. The error category is set to no_state.
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  • get_future() a déjà été appelée sur une promesse avec le même état que *this partagé. La catégorie d'erreur est mis à 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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