std::atomic::fetch_or(3) C++ Standard Libary std::atomic::fetch_or(3) NAME std::atomic::fetch_or - std::atomic::fetch_or Synopsis member only of atomic<Integrala> specializations T fetch_or( T arg, std::memory_order order = (1) (since C++11) std::memory_order_seq_cst ) noexcept; T fetch_or( T arg, std::memory_order order = std::memory_order_seq_cst ) volatile (2) (since C++11) noexcept; Atomically replaces the current value with the result of bitwise OR of the value and arg. The operation is read-modify-write operation. Memory is affected according to the value of order. It is deprecated if std::atomic<T>::is_always_lock_free is false and (since C++20) overload (2) participates in overload resolution. Parameters arg - the other argument of bitwise OR order - memory order constraints to enforce Return value The value immediately preceding the effects of this function in the mod- ification order of *this. See also atomic_fetch_or replaces the atomic object with the result of bitwise OR atomic_fetch_or_explicit with a non-atomic argument and obtains the pre- vious value (C++11) of the atomic (C++11) (function template) http://cppreference.com 2024.06.10 std::atomic::fetch_or(3)
NAME | Synopsis | Parameters | Return value | See also
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