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std::atomic_flag:: operator=

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std::atomic_flag
헤더 파일에 정의됨 <atomic>
atomic_flag & operator = ( const atomic_flag & ) = delete ;
(1) (C++11부터)
atomic_flag & operator = ( const atomic_flag & ) volatile = delete ;
(2) (C++11부터)

std::atomic_flag 는 할당할 수 없으며, 할당 연산자가 삭제되었습니다.