名前空間
変種
操作

std::future::valid

提供: cppreference.com
< cpp‎ | thread‎ | future

 
 
スレッドのサポートライブラリ
スレッド
Original:
Threads
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
thread(C++11)
this_thread空間
Original:
this_thread namespace
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
get_id(C++11)
yield(C++11)
sleep_for(C++11)
sleep_until(C++11)
相互排除
Original:
Mutual exclusion
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
mutex(C++11)
timed_mutex(C++11)
汎用のロック管理
Original:
Generic lock management
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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)
条件変数
Original:
Condition variables
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
condition_variable(C++11)
condition_variable_any(C++11)
notify_all_at_thread_exit(C++11)
cv_status(C++11)
先物
Original:
Futures
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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
future::future
future::~future
future::operator=
future::share
結果を取得する
Original:
Getting the result
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
future::get
状態
Original:
State
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
future::valid
future::wait
future::wait_for
future::wait_until
 
bool valid() const;
(C + + 11以来)
未来かどうかをチェックするには、約束して共有状態を指します。これが唯一のstd::promise::get_future()によって返さ先物のためのケースで、std::packaged_task::get_future()またはstd::async()初めてまでget()or share()が呼び出されます.
Original:
Checks if the future refers to a state shared with a promise. This is the case only for futures returned by std::promise::get_future(), std::packaged_task::get_future() or std::async() until the first time get()or share() is called.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

目次

[編集] パラメータ

(なし)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 値を返します

true場合*これはfalseそうでない場合は、共有された状態を指します.
Original:
true if *this refers to a shared state, otherwise false.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 例外

noexcept specification:  
noexcept
  (C + + 11以来)

[編集]

[編集] も参照してください

使用可能になるの結果を待ちます
Original:
waits for the result to become available
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(パブリックメンバ関数) [edit]