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std::atomic_ref<T>:: store

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atomic_ref::store
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Constants
void store ( value_type desired,

std:: memory_order order =

std:: memory_order_seq_cst ) const noexcept ;
(constexpr since C++26)

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

This overload participates in overload resolution only if std:: is_const_v < T > is false .

If order is not std:: memory_order_relaxed , std:: memory_order_release or std:: memory_order_seq_cst , the behavior is undefined.

Parameters

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

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior
LWG 3508
( P3323R1 ) 		C++20 store was meaningless for const T constrained to accept only non-const T

See also

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