Is core.internal.atomic.atomicFetchAdd implementation really lock free?

[H. S. Teoh]

On Wed, Nov 30, 2022 at 12:04:22AM +0000, mw via Digitalmars-d wrote:
> According to the doc:
> 
> https://dlang.org/library/core/atomic/atomic_fetch_add.html
> 
> Atomically adds mod to the value referenced by val and returns the
> value val held previously. This operation is both lock-free and
> atomic.
[...]
 
Hmm, that's weird that the docs would say that.  I've always been under
the impression that core.atomic ops use locks to achieve atomicity.


T

-- 
Which is worse: ignorance or apathy? Who knows? Who cares? -- Erich Schubert