* 2024-12-24 00:11:26-0500, Stefan Monnier wrote: > I don't see a strong argument in favor of making it index from the end > rather than signal an error. What would the implementation look like? > Would it be significantly more efficient than doing it "by hand" e.g.: > > (let ((l (length X))) > (nth (if (< i 0) (- l i) i) X)) First test if index (i) is negative and only then run the needed "length" etc. -- /// Teemu Likonen - .-.. https://www.iki.fi/tlikonen/ // OpenPGP: 6965F03973F0D4CA22B9410F0F2CAE0E07608462