atomic_xchg_acq in core::intrinsics - Rust
Description: Stores the value at the specified memory location, returning the old value.
Keywords: rust, rustlang, rust-lang, atomic_xchg_acq

# Function core::intrinsics::atomic_xchg_acq
[−][src]

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

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

intrinsics are unlikely to ever be stabilized, instead they should be used through stabilized interfaces in the rest of the standard library

Expand description

Stores the value at the specified memory location, returning the old value.

The stabilized version of this intrinsic is available on the `atomic` types via the `swap` method by passing `Ordering::Acquire` as the `order`. For example, `AtomicBool::swap`.