From: Ralf Jung Date: Wed, 13 Apr 2022 15:28:50 +0000 (-0400) Subject: fix a typo X-Git-Url: https://git.ralfj.de/web.git/commitdiff_plain/94d0b1594ae4fffbf2999b59c411f6755f46d47a fix a typo --- diff --git a/personal/_posts/2022-04-11-provenance-exposed.md b/personal/_posts/2022-04-11-provenance-exposed.md index 901b706..e5560e2 100644 --- a/personal/_posts/2022-04-11-provenance-exposed.md +++ b/personal/_posts/2022-04-11-provenance-exposed.md @@ -261,7 +261,7 @@ So what are the alternatives? Well, I would argue that the alternative is to treat the original program (after translation to Rust) as having Undefined Behavior. There are, to my knowledge, generally two reasons why people might want to transmute a pointer to an integer: - Chaining many `as` casts is annoying, so calling `mem::transmute` might be shorter. -- The code doesn't actually care about the *integer* per se, it just needs *some way* to hold arbitrary data in a container of a given time. +- The code doesn't actually care about the *integer* per se, it just needs *some way* to hold arbitrary data in a container of a given type. The first kind of code should just use `as` casts, and we should do what we can (via lints, for example) to identify such code and get it to use casts instead.[^compat] Maybe we can adjust the cast rules to remove the need for chaining, or add some [helper methods](https://doc.rust-lang.org/nightly/std/primitive.pointer.html#method.expose_addr) that can be used instead.