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Re: (eq #'f #'f) and :TEMPORARY hash tables

To: Jon L White <@sail.stanford.edu:jonl@lucid.com>
Subject: Re: (eq #'f #'f) and :TEMPORARY hash tables
From: Jeff Dalton <jeff%aiai.edinburgh.ac.uk@NSS.Cs.Ucl.AC.UK>
Date: Fri, 23 Sep 88 15:01:02 BST
Cc: barmar@think.com, SEB1525 <@sail.stanford.edu:SEB1525@draper.com>, common-lisp@sail.stanford.edu
In-reply-to: Jon L White's message of Thu, 22 Sep 88 13:55:36 PDT

> To my knowledge, only Symbolics and Lucid have any hooks for
> permitting random :test functions to be used in hash tables
> (Lucid's facilities are not "exported" to the end customer),
> and neither of these implementations has the EQ/EQP difficulty
> on global functions.

Pop11's properties (hash tables to us) allow the user to specify
a predicate and a hash function.  It also (to judge from PopLog
Common Lisp) lacks the EQ/EQP difficulty.

-- Jeff

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