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std::atomic_flag::test_and_set

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< cpp‎ | atomic‎ | atomic flag
Revision as of 21:48, 31 May 2013 by P12bot (Talk | contribs)

Defined in header <atomic>
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)

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

Parameters

order - the memory sycnhronization ordering for this operation

Exceptions

noexcept specification:  
noexcept
  

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
(typedef) [edit]