Op 27-02-2023 om 14:17 schreef Jessica Tallon:
> Hello,
> 
> I've been thinking how it'd be nice to have available in Guile a number of
> purely functional datatypes, these being hashmaps, vectors, and sets. I've
> been wondering what folks have been using for these with the idea that we
> could bring them into guile for ease of use.
> 
> I know of Andy Wingo's fash[0] and fector[1]. What do folks like to use?

I use <https://github.com/ijp/pfds/>.  It has queues, hash maps and tree 
maps (as in, sorted by key), heaps, deques and some list data type. 
More precisely, I have used (pfds bbtrees), (pfds queues) and (pfds hamts).

Guile also has (ice-9 vlist), which has a functional interface, but its 
implementation isn't purely functional and as a consequence isn't 
thread-safe.

greetings,
Maxime.