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| From: | Stefan Monnier |
| Subject: | Re: lists, plain conses and length |
| Date: | Thu, 03 Sep 2020 22:26:51 -0400 |
| User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
> Q: how does one distinguish a cons from a list.
A: check `null`
(tongue in cheek)
Stefan
PS: Hint: `(listp X)` is the same as `(or (consp X) (null X))`
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