[loeg]

Yes, exactly. I was using this for zero-copy serialization into a buffer. At the time, I don’t believe that API had been stabilized yet.

[estebank]

That method has been around since 1.0 (as documented in the source code). Were you using Rust before 2015? If so, a lot has changed :)

[loeg]

No, post-1.0. I don't remember exactly why I had to roll my own with unsafe, but it was essentially the same thing.