std::atomic_ref::store

From cppreference.com
< cpplrm; | atomiclrm; | atomic ref
void store( T desired, std::memory_order order = std::memory_order_seq_cst ) const noexcept;
(since C++20)

Atomically replaces the current value of the referenced object with desired. Memory is affected according to the value of order.

order must be one of std::memory_order_relaxed, std::memory_order_release or std::memory_order_seq_cst. Otherwise the behavior is undefined.

Parameters

desired - the value to store into the referenced object
order - memory order constraints to enforce

Return value

(none)

See also

stores a value into the object referenced by an atomic_ref object
(public member function)