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- /macros/README.md: Typo "modules" => "macros" - iterators2.py: Reduce line length to <90-char width. - iterators4.py: Update 'fun' => 'challenge' as per PR#177 - rustlings hint iterators4: improve clarity
Macros
Rust's macro system is very powerful, but also kind of difficult to wrap your head around. We're not going to teach you how to write your own fully-featured macros. Instead, we'll show you how to use and create them.