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std::atomic_flag::test_and_set

Defined in header <atomic>

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bool test_and_set(std::memory_order order = std::memory_order_seq_cst) volatile;

(1)

(since C++11)

bool test_and_set(std::memory_order order = std::memory_order_seq_cst);

(2)

(since C++11)

原子地更改std::atomic_flag设置%28true%29并返回它以前持有的值。

参数

order

-

the memory synchronization ordering for this operation

例外

noexcept规格:

noexcept

另见

clear

atomically sets flag to false (public member function)

atomic_flag_test_and_setatomic_flag_test_and_set_explicit (C++11)(C++11)

atomically sets the flag to true and returns its previous value (function)

memory_order (C++11)

defines memory ordering constraints for the given atomic operation (typedef)

代码语言:txt
复制
 ? cppreference.com

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