Optional arguments in Rust 1.12 Posted by clarkmoody on Friday September 30, 2016 @11:27AM from the xion.io dept. http://xion.io/post/code/rust-optional-args.html ( 1 comment | 58 points | on HN )
It's worth mentioning that there is an RFC discussion for first-class support optional (or keyworded) arguments here: https://github.com/rust-lang/rfcs/issues/323