[Top][All Lists]

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

Re: `max-specpdl-size' and `max-lisp-eval-depth'

From: Stephen Berman
Subject: Re: `max-specpdl-size' and `max-lisp-eval-depth'
Date: Tue, 28 Sep 2021 13:23:02 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

On Tue, 28 Sep 2021 13:14:42 +0200 Lars Ingebrigtsen <> wrote:

> Stephen Berman <> writes:
>> The term goes back to the beginnings of Lisp (McCarthy's paper from
>> 1960, available via the Wayback Machine from
>>   In general (we shall discuss an exception), the routine for a
>>   recursive function uses itself as a subroutine [...] This possible
>>   conflict is resolved by the SAVE and UNSAVE routines that use the
>>   public push-down list.
> Perhaps we should put something about this in the `max-specpdl-size' doc
> string.  You wouldn't happen to know what the "spec" part is referring
> to?  :-)

I think that's from the Common Lisp term "special variable" for a global
(i.e. non-lexical) variable.  I don't know where that term originated,
maybe Maclisp.

Steve Berman

reply via email to

[Prev in Thread] Current Thread [Next in Thread]