This is a little library that gives its user tools to easily change place with any supplied function. This library is most useful in cases when you have to deal with places that have complex structure.

GitHub repository:

You can install it via Quicklisp:

(ql:quickload "trivial-update")

trivial-update is written and maintained by Mark Karpov.

It's distributed under MIT-license.

Relevant topics: trivial, convenience library