member only of atomic_ref<Integral> and atomic_ref<T*> template specializations | ||
value_type operator++() const noexcept; | (1) | (since C++20) |
value_type operator++(int) const noexcept; | (2) | (since C++20) |
value_type operator--() const noexcept; | (3) | (since C++20) |
value_type operator--(int) const noexcept; | (4) | (since C++20) |
Atomically increments or decrements the current value of the referenced object. These operations are read-modify-write operations.
return fetch_add(1) + 1;.return fetch_add(1);.return fetch_sub(1) - 1;
return fetch_sub(1);.For signed Integral types, arithmetic is defined to use two’s complement representation. There are no undefined results.
For T* types, the result may be an undefined address, but the operations otherwise have no undefined behavior. The program is ill-formed if T is not an object type.
(none).
Unlike most pre-increment and pre-decrement operators, the pre-increment and pre-decrement operators for atomic_ref do not return a reference to the modified object. They return a copy of the stored value instead.
| atomically adds the argument to the value stored in the referenced object and obtains the value held previously (public member function) |
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| atomically subtracts the argument from the value stored in the referenced object and obtains the value held previously (public member function) |
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| atomically adds, subtracts, or performs bitwise AND, OR, XOR with the referenced value (public member function) |
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