atomic_cxchgweak in std::intrinsics - Rust
Description: Stores a value if the current value is the same as the `old` value. `T` must be an integer or pointer type. The comparison may spuriously fail.

## atomic_cxchgweak

# Function atomic_cxchgweak

Source

    pub unsafe fn atomic_cxchgweak<T, const ORD_SUCC: AtomicOrdering, const ORD_FAIL: AtomicOrdering>(
        _dst: *mut T,
        _old: T,
        _src: T,
    ) -> (T, bool)where
        T: Copy,

🔬This is a nightly-only experimental API. (`core_intrinsics`)
Expand description

Stores a value if the current value is the same as the `old` value. `T` must be an integer or pointer type. The comparison may spuriously fail.

The stabilized version of this intrinsic is available on the `atomic` types via the `compare_exchange_weak` method. For example, `AtomicBool::compare_exchange_weak`.