Le dimanche 22 novembre 2020 à 21:24 +0100, Zelphir Kaltstahl a écrit : > If I had a vector, I could simply go by index backwards or > forwards without adding any runtime complexity.
So, you would like to sometimes go forward, sometimes go backward? If it is sequential, the list is what you want. With the 2-variable function used earlier, you can go in one direction or the other, depending on which argument you decompose. > a more specific > but less generally useful question is: "What do I use in Guile, if I > were using a dynamic array in Python?" It depends. If you were using a dynamic array in Python because there was no good implementation of what guile calls lists or vectors, use lists or vectors ;-) If you were using a dynamic array because you wanted to grow lists while keeping random indexing, use VLists ( https://www.gnu.org/software/guile/manual/guile.html#VLists). Or hash tables (https://www.gnu.org/software/guile/manual/guile.html#VHashes, https://www.gnu.org/software/guile/manual/guile.html#Hash-Tables).
