Documentation addition request

[alper]

I'm trying to implement Debug occasionally, then I hit this page:
https://doc.rust-lang.org/stable/core/fmt/trait.Debug.html

The examples on that page do not contain something that uses write! so I usually google my way to the same SO answer: https://stackoverflow.com/a/22243806/102315

Could the documentation there be expanded to add this?

[sfackler]

The standard way to implement debug is to use the debug builders fmt.debug_struct(..), which is documented there.

[BGR360]

I think this is a very reasonable ask. It doesn't make much sense to use the debug builders for very simple implementations of Debug, and for those just starting out, and the importance of using the builders for more complicated Debug impls is minimal.

@alper you'd be welcome to submit a PR with a proposed example! You just need to edit the rustdoc comment for Debug:

rust/library/core/src/fmt/mod.rs

Line 505 in 51e8031

/// `?` formatting.

@rustbot label +T-libs A-docs +E-easy

[alper]

Thanks, @BGR360! My PR is linked above.

[alper]

Thanks for the prodding. My change has now been merged. 🎉