std::atomic_flag::notify_one

		(C++20 起)
void notify_one() noexcept;
void notify_one() volatile noexcept;

进行原子提醒操作。

若有线程被 *this 上的原子等待操作（即 wait() ）阻塞，则除阻至少一个这种线程；否则不做任何事。

（无）

更改检测的这种形式通常比简单轮询或纯自旋锁高效。

wait (C++20)	阻塞线程直至被提醒且原子值更改 (公开成员函数)
atomic_flag_waitatomic_flag_wait_explicit (C++20)(C++20)	阻塞线程，直至被提醒且标志更改 (函数)
atomic_flag_notify_one (C++20)	提醒一个在 `atomic_flag_wait` 中阻塞的线程 (函数)

类
atomic (C++11)
atomic_ref (C++20)
函数
atomic_storeatomic_store_explicit (C++11)(C++11)
atomic_loadatomic_load_explicit (C++11)(C++11)
atomic_exchangeatomic_exchange_explicit (C++11)(C++11)
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit (C++11)(C++11)(C++11)(C++11)
atomic_fetch_addatomic_fetch_add_explicit (C++11)(C++11)
atomic_fetch_subatomic_fetch_sub_explicit (C++11)(C++11)
atomic_fetch_andatomic_fetch_and_explicit (C++11)(C++11)
atomic_fetch_oratomic_fetch_or_explicit (C++11)(C++11)
atomic_fetch_xoratomic_fetch_xor_explicit (C++11)(C++11)
atomic_is_lock_free (C++11)
atomic_waitatomic_wait_explicit (C++20)(C++20)
atomic_notify_one (C++20)
atomic_notify_all (C++20)
原子标志
atomic_flag (C++11)
atomic_flag_test_and_setatomic_flag_test_and_set_explicit (C++11)(C++11)
atomic_flag_clearatomic_flag_clear_explicit (C++11)(C++11)
atomic_flag_testatomic_flag_test_explicit (C++20)(C++20)
atomic_flag_waitatomic_flag_wait_explicit (C++20)(C++20)
atomic_flag_notify_one (C++20)
atomic_flag_notify_all (C++20)
初始化
atomic_init (C++11)(C++20 中弃用)
ATOMIC_VAR_INIT (C++11)(C++20 中弃用)
ATOMIC_FLAG_INIT (C++11)(C++20 中弃用)
内存顺序
memory_order (C++11)
kill_dependency (C++11)
atomic_thread_fence (C++11)
atomic_signal_fence (C++11)

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