Method lrs::atomic::AtomicU64::compare_exchange

Conditionally replaces the value in the atomic integer by a new one with sequentially consistent semantics.

Syntax

impl AtomicU64 {
    fn compare_exchange(&self, old: u64, new: u64) -> u64
}

Name	Description
old	The value the atomic integer is compared to.
new	The value to be stored in the atomic integer.

Returns the value previously stored in the atomic integer.

If the returned value is the same as old, the value in the atomic integer has been replaced by new.