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std::latch:: wait

From cppreference.net
C++
Concurrency support library
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this_thread namespace
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Memory ordering
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Free functions for atomic operations
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(C++11) (C++11) (C++11) (C++11)
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Free functions for atomic flags
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(C++20) (C++20)
(C++20)
(C++20)
std::latch
void wait ( ) const ;
(自 C++20 起)

阻塞调用线程，直到内部计数器达到 ​ 0 ​ 。若当前值已为零，则立即返回。

参数

(无)

返回值

(无)

异常

在出错时抛出 std::system_error ，附带适用于互斥类型的错误码。