std::atomic_ref<T>::operator&=,|=,^=
From cppreference.com
< cpp | atomic | atomic ref
| member only of atomic_ref<Integral> specializations |
||
| T operator&=( T arg ) const noexcept; |
(1) | (since C++20) |
| T operator|=( T arg ) const noexcept; |
(2) | (since C++20) |
| T operator^=( T arg ) const noexcept; |
(3) | (since C++20) |
Atomically replaces the current value of the referenced object with the result of computation involving the previous value and arg. These operations are read-modify-write operations.
- operator&= performs atomic bitwise AND. Equivalent to return fetch_and(arg) & arg;.
- operator!= performs atomic bitwise OR. Equivalent to return fetch_or(arg) | arg;.
- operator^= performs atomic bitwise XOR. Equivalent to return fetch_xor(arg) ^ arg;.
Contents |
[edit] Parameters
| arg | - | the argument for the arithmetic operation |
[edit] Return value
The resulting value (that is, the result of applying the corresponding binary operator to the value immediately preceding the effects of the corresponding member function).
[edit] Notes
Unlike most compound assignment operators, the compound assignment operators for atomic_ref do not return a reference to their left-hand arguments. They return a copy of the stored value instead.
[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| atomically performs bitwise AND between the argument and the value of the referenced object and obtains the value held previously (public member function) | |
| atomically performs bitwise OR between the argument and the value of the referenced object and obtains the value held previously (public member function) | |
| atomically performs bitwise XOR between the argument and the value of the referenced object and obtains the value held previously (public member function) | |
| atomically increments or decrements the referenced object by one (public member function) | |
| atomically adds to or subtracts from the referenced value (public member function) |
