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std::atomic_ref<T>::operator&=,|=,^=

From cppreference.com
< cpp‎ | atomic‎ | atomic ref
 
 
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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

[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) [edit]
atomically performs bitwise OR between the argument and the value of the referenced object and obtains the value held previously
(public member function) [edit]
atomically performs bitwise XOR between the argument and the value of the referenced object and obtains the value held previously
(public member function) [edit]
atomically increments or decrements the referenced object by one
(public member function) [edit]
atomically adds to or subtracts from the referenced value
(public member function) [edit]