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All arrays can be adjustable?

To: navajo!DLA%DIAMOND.S4CC.Symbolics.COM@navajo.stanford.edu
Subject: All arrays can be adjustable?
From: edsel!bhopal!jonl@navajo.stanford.edu (Jon L White)
Date: Wed, 20 May 87 22:45:04 PDT
Cc: navajo!sandra%orion%cs.utah.edu@navajo.stanford.edu, navajo!common-lisp%sail@navajo.stanford.edu
In-reply-to: David L. Andre's message of Tue, 19 May 87 22:21 EDT <870519222134.7.DLA@LIMPKIN.S4CC.Symbolics.COM>

Re: I don't think the issue is whether or not users can tell whether arrays
    are simple or adjustable.  . . .
Whether or not that is the issue with Loosemore's complaint, it is indeed a 
requirement of Common Lisp --  a user need only do (typep x 'simple-array).  
See CLtL page 34 where simple-array is defined as a subtype of array.
Note also that everywhere "subtype" is used, it means "proper subtype".  

-- JonL --

Follow-Ups:
- All arrays can be adjustable?
  - From: Don Morrison <dfm@jasper.palladian.com>

References:
- All arrays can be adjustable?
  - From: David L. Andre <DLA@DIAMOND.S4CC.Symbolics.COM>

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