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That is incorrect. An Emacs obarray is a kind of hash table [1]. [1] https://www.gnu.org/software/emacs/manual/html_node/elisp/Creating-Symbols.html https://ww

• shawn 8y ago
  (make-vector length 0) Interesting. That threw me off. I overlooked the previous paragraph: In Emacs Lisp, an obarray is actually a vector. Each element of the vector is a bucket; its value is either an interned symbol whose name hashes to that bucket, or 0 if the bucket is empty. Each interned symbol has an internal link (invisible to the user) to the next symbol in the bucket. Because these links are invisible, there is no way to find all the symbols in an obarray except using mapatoms (below). The order of symbols in a bucket is not significant. Thanks!