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Variants

    std::atomic_flag_clear, std::atomic_flag_clear_explicit

    From cppreference.com
     
    C++
     
    Concurrency support library
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    (C++11)
    (C++20)
    (C++17)(C++17)
    this_thread namespace
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    Cooperative cancellation
    Mutual exclusion
    (C++11)
    (C++11)
    (C++17)
    Generic lock management
    (C++11)
    (C++11)
    (C++17)
    (C++11)
    (C++14)
    (C++11)
    (C++11)
    (C++11)
    (C++11)(C++11)(C++11)(C++11)(C++11)(C++11)
    Condition variables
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    Semaphores
    (C++20)(C++20)
    Latches and Barriers
    (C++20)
    (C++20)
    Futures
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    (C++11)
    Safe Reclamation
    (C++26)
    (C++26)
    (C++26)
    Hazard Pointers
    (C++26)
    (C++26)
    (C++26)
    Atomic types
    (C++11)
    (C++20)
    (C++11)
    Initialization of atomic types
    (C++11)(deprecated in C++20)
    (C++11)(deprecated in C++20)
    (C++11)
    Memory ordering
    (C++11)
    (C++11)(deprecated in C++26)
    (C++11)
    (C++11)
    Free functions for atomic operations
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)(C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++11)(C++11)
    (C++26)(C++26)
    (C++26)(C++26)
    (C++11)