std::atomic_ref<T>::operator=
value_type operator=( value_type desired ) const noexcept; | (1) | (constexpr since C++26) |
atomic_ref& operator=( const atomic_ref& ) = delete; | (2) |
1) Equivalent to
store(desired); return desired;. This overload participates in overload resolution only if std::is_const_v<T> is false.Parameters
| desired | - | value to assign |
Return value
As described above.
Notes
Unlike most assignment operators, the assignment operator for atomic_ref does not return a reference to its left-hand argument. It returns a copy of the stored value instead.
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 | assignment operator was meaningless for constT | constrained to accept only non-const T |
See also
constructs an atomic_ref object (public member function) |
|
| atomically replaces the value of the referenced object with a non-atomic argument (public member function) |
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