Function std::intrinsics::atomic_and_acq

pub unsafe extern "rust-intrinsic" fn atomic_and_acq<T>(dst: *mut T,                                                        src: T)                                                        -> T

Bitwise and with the current value, returning the previous value. The stabilized version of this intrinsic is available on the std::sync::atomic types via the fetch_and method by passing Ordering::Acquire as the order. For example, AtomicBool::fetch_and.