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From: pierson@encore.com (Dan L. Pierson)
Newsgroups: comp.lang.lisp
Subject: Re: flet, a question of style?
Message-ID: <PIERSON.90Aug4182016@xenna.encore.com>
Date: 4 Aug 90 22:20:16 GMT
References: <1990Aug4.001913.22597@Neon.Stanford.EDU>
Sender: news@Encore.COM
Organization: Encore Computer Corporation
Lines: 23
In-reply-to: rit@killdeer.Stanford.EDU's message of 4 Aug 90 00:19:13 GMT

In article <1990Aug4.001913.22597@Neon.Stanford.EDU> rit@killdeer.Stanford.EDU (Jean-Francois Rit) writes:

(about a FLET being more expensive than a DEFUN)

   Here is the heart of my question. Is it really so, does it always
   have to be?  My own limited tests gave me a bit less than 10% in
   disfavor of flet. I also noticed that an flet form in the do clause
   of a MIT loop is not compiled.

What Lisp system did you measure?  With what OPTIMIZE settings?  It's
not obvious that calling a FLET should be more expensive, if it's
inlined it should be less.

The failure to compile the FLET in the LOOP sounds like a compiler bug
to me.

--

                                            dan

In real life: Dan Pierson, Encore Computer Corporation, Research
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