[arximboldi]

Thanks a lot for mentioning it! :-)

Ewig uses RRB-Trees (Relaxed Radix Balanced Trees) which like ropes, is confluent (supports fast concatenation) but has very stable bounds otherwise, similar to a vector-like type.

EDIT: The parent mentions a video, I gues it is the CppNow talk: https://www.youtube.com/watch?v=ZsryQp0UAC8 Last week I did another version of that talk at CppCon (with slightly deeper coverage of Ewig) but I don't think it is in Youtube yet.

[Johnny_Brahms]

I think immer is brilliant. I just saw that you have guile bindings, which makes it even more exciting!

I like that they are lgpl as well. I am a believer in that kind of freedom definition, and I hope you can dual-license it successfully.