[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

A simple question

To: navajo!smith%nrl-aic.ARPA@navajo.stanford.edu
Subject: A simple question
From: edsel!bhopal!jonl@navajo.stanford.edu (Jon L White)
Date: Thu, 23 Apr 87 23:23:38 PDT
Cc: navajo!common-lisp%sail@navajo.stanford.edu, navajo!spears%nrl-aic.arpa@navajo.stanford.edu
In-reply-to: Russ Smith's message of 23 Apr 1987 13:42:18 EST (Thu)

What is the version number of your Sun Common Lisp ?  try calling
(lisp-implementation-version), or look at the initial greeting.

Version 2 (and it's follow-ons) has been current since December 1986,
and doesn't have the pessimization you reported, namely that
(not (not x)) ==> x.   Version 1 appears to have the problem.

As has often been remarked, "The source of all bugs is pre-mature
optimization."

-- JonL --

Prev by Date: Streams
Next by Date: Mailing List
Previous by thread: Re: A simple question
Next by thread: Re: A simple question
Index(es):
- Date
- Thread