I did not consider Lisp macros as a means to inline code for efficiency. But while I read “Common LISPcraft” this is one of the first (and a very good) example of why to use macros. It’s a great book - also because of the many annotations left by the former owner 🙂
#CommonLisp #Lisp
![A foto of a part of the page 137 of the book "Common LISPcraft" with visible annotations by a former reader. In this example they say "ahh ok!" when the book talks about why use mapc instead of mapcar.](https://media.emacs.ch/media_attachments/files/112/221/074/896/373/902/small/934edfc100f29214.jpeg)