str::into_boxed_bytes should have a doc example

[frewsxcv]

https://doc.rust-lang.org/nightly/std/primitive.str.html#method.into_boxed_bytes

If anyone anyone wants to work on this, just mention it in a comment to prevent duplicate work. If you need any help or have any questions, don't hesitate to ping me :)

[42triangles]

I'd like to do it. Would something like

let s = "this is a string";
let boxed = s.to_owned().into_boxed_str().into_boxed_bytes();
assert_eq!(*boxed, *s.as_bytes());

suffice?

Should I split the boxed declaration into two (-> let boxed_str = s.to_owned().into_boxed_str(); and let boxed_u8_slice = boxed_str.into_bytes(); maybe with type information attached)?

[frewsxcv]

@42triangles yep, that looks good to me! if you want to separate it into multiple declarations, go for it. most doc examples don't have the type information explicitly attached, but if you think it helps understand the API, then feel free to incorporate it.

[frewsxcv]

Resolved in #44485