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Re: exitlist in new-style DO
- To: bug-lisp at MIT-MC
- Subject: Re: exitlist in new-style DO
- From: Dave Touretzky at CMU-10A
- Date: Mon, 23 Feb 81 15:02:00 GMT
- Cc: Paul Hilfinger at CMU-10A
- In-reply-to: Kent M. Pitman's message of 23 Feb 81 01:02-EST
- Original-date: 23 February 1981 1002-EST
I don't really like arguments of the form "X should not be done because it
is a pain to implement". Even worse are arguments "X should not be done
because it requires a [totally trivial] amount of extra code/memory." Having
COND work the way it does is conceptually natural and elegant. I think DO
should be adjusted similarly.
On the other hand, if the change really would break tons of code, then I
won't press it. How many routines actually depend on DO returning NIL
when there is no exitlist?
-- Dave