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std::atomic_flag::test_and_set

From cppreference.com
< cpp‎ | atomic‎ | atomic flag
 
 
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Defined in header <atomic>
bool test_and_set(std::memory_order order = std::memory_order_seq_cst) volatile noexcept;
(1) (since C++11)
bool test_and_set(std::memory_order order = std::memory_order_seq_cst) noexcept;
(2) (since C++11)

Atomically changes the state of a std::atomic_flag to set (true) and returns the value it held before.

[edit] Parameters

order - the memory synchronization ordering for this operation


[edit] See also

atomically sets flag to false
(public member function) [edit]
atomically sets the flag to true and returns its previous value
(function) [edit]
defines memory ordering constraints for the given atomic operation
(enum) [edit]