T fetch_or( T arg,
std::memory_order order = std::memory_order_seq_cst ) const noexcept;
| (since C++20) (member only of atomic_ref<Integral> template specialization) |
Atomically replaces the current value of the referenced object with the result of bitwise OR of the value and arg. This operation is a read-modify-write operation. Memory is affected according to the value of order.
| arg | - | the other argument of bitwise OR |
| order | - | memory order constraints to enforce |
The value of the referenced object, immediately preceding the effects of this function.
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