atomic_cxchg 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.

## atomic_cxchg

# Function atomic_cxchg

Source

    pub unsafe fn atomic_cxchg<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 stabilized version of this intrinsic is available on the `atomic` types via the `compare_exchange` method. For example, `AtomicBool::compare_exchange`.