Function wasmtime_environ::__core::intrinsics::atomic_cxchg_acq_failrelaxed
source · [−]pub unsafe extern "rust-intrinsic" fn atomic_cxchg_acq_failrelaxed<T>(
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.
The stabilized version of this intrinsic is available on the
atomic
types via the compare_exchange
method by passing
Ordering::Acquire
as the success
and Ordering::Relaxed
as the
failure
parameters. For example, AtomicBool::compare_exchange
.