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std::atomic_flag:: test_and_set

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std::atomic_flag
헤더 파일에 정의됨 <atomic>
bool test_and_set ( std:: memory_order order =
std:: memory_order_seq_cst ) volatile noexcept ;
(1) (C++11부터)
bool test_and_set ( std:: memory_order order =
std:: memory_order_seq_cst ) noexcept ;
(2) (C++11부터)

std::atomic_flag 의 상태를 원자적으로 설정( true )으로 변경하고, 이전에 보유했던 값을 반환합니다.

매개변수

order - 메모리 동기화 순서

참고 항목

플래그를 원자적으로 false 로 설정
(public member function)
(C++11) (C++11)
플래그를 원자적으로 true 로 설정하고 이전 값을 반환
(function)
(C++11)
주어진 원자 연산에 대한 메모리 순서 제약 조건 정의
(enum)