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- To: JerryB at MIT-AI
- From: Alan Bawden <ALAN at MIT-MC>
- Date: Fri, 31 Oct 80 07:29:00 GMT
- Cc: BUG-LISPM at MIT-MC, BUG-LISP at MIT-MC
- Original-date: 31 October 1980 02:29-EST
Date: 31 October 1980 02:16-EST
From: Gerald R. Barber <JerryB at MIT-AI>
In system 46.8, with microcode 692, on LISP Machine Four:
SXHASH seems to have the property that (SXHASH '(a b c)) = (SXHASH
'(b c a)) or, it is insensitive to the ordering of things in a
list.
If I am not mistaken, the MacLisp sxhash has this property too
(insensitivity to the order of a list). Are we perhaps keeping this
around for compatibility? I have never thought that this was a very
"nice" property for a hashing function to have.
Is it too late to change it in MacLisp? (I'll bet the answer to that
one is "yes".)