std::atomic_flag::test_and_set (3) - Linux Man Pages

std::atomic_flag::test_and_set: std::atomic_flag::test_and_set

NAME

std::atomic_flag::test_and_set - std::atomic_flag::test_and_set

Synopsis


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.

Parameters


order - the memory synchronization ordering for this operation

See also


                                  atomically sets flag to false
clear (public member function)


atomic_flag_test_and_set
atomic_flag_test_and_set_explicit atomically sets the flag to true and returns its previous value
                                  (function)
(C++11)
(C++11)


memory_order defines memory ordering constraints for the given atomic operation
                                  (enum)
(C++11)