Polycarbohydrate 2ec9c0957e Async updates and reformatting for new exercise
- Renamed/ordered the directories for macros, clippy, and conversions, shifting them all one up in numerical order to fit async as number 21
- Added the 21_async directories in exercises and solutions
- Added async1.rs in the 21_async directory in exercises and solutions
- Added async to the info.toml in rustlings-macros and reordered the rest of the exercises in there as well
- Created an exercise for async1 and its solution
2025-03-07 19:49:35 -05:00

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# 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.
If you'd like to learn more about writing your own macros, the
[macrokata](https://github.com/tfpk/macrokata) project has a similar style
of exercises to Rustlings, but is all about learning to write Macros.
## Further information
- [Macros](https://doc.rust-lang.org/book/ch19-06-macros.html)
- [The Little Book of Rust Macros](https://veykril.github.io/tlborm/)