The Rust standard library provides atomic booleans, integers, and pointers.
AtomicPtr is safe for loading, storing, and so forth; but pointers are
unsafe to use.
It turns out that a safe atomic Box type is possible. Unfortunately, the
only operation it supports is swap. Still, this is sufficient for some
lock-free data structures, so here it is!
AtomicBox is distributed under the terms of both the MIT license and the Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT, and COPYRIGHT for details.