Function core::intrinsics::atomic_cxchgweak_acq [−][src]
pub unsafe extern "rust-intrinsic" fn atomic_cxchgweak_acq<T: Copy>(
dst: *mut T,
old: T,
src: T
) -> (T, bool)
🔬 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
如果当前值与 old 值相同，则存储一个值。
通过将 Ordering::Acquire 用作 success 和 failure 参数，可以通过 compare_exchange_weak 方法在 atomic 类型上使用此内联函数的稳定版本。