From: Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: `max-specpdl-size' and `max-lisp-eval-depth'
Date: Tue, 28 Sep 2021 13:05:15 +0200 [thread overview]
Message-ID: <87fstpkljo.fsf@zoho.eu> (raw)
In-Reply-To: 87k0j1t1mv.fsf@gmx.net
Stephen Berman wrote:
>> Thank you for your explanation. Only two built-in symbols
>> in Emacs contain this string in their names - the other is
>> `ar-max-specpdl-size'.
>
> The term goes back to the beginnings of Lisp (McCarthy's
> paper from 1960, available via the Wayback Machine from
> http://www-formal.stanford.edu/jmc/recursive/node4.html):
>
> 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.
>
> A footnote here (added later) says: "1995: now called
> a stack"
Cool B)
IIRC from Automata Theory there was this thing called a PDA or
"pushdown automaton", maybe that was a stack as well?
Later a PDA was a "Personal digital assistant" like the Apple
Newton which didn't make anyone impressed. But I guess they
made up for it at least commercially with all the later
iThings ...
--
underground experts united
https://dataswamp.org/~incal
next prev parent reply other threads:[~2021-09-28 11:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-26 1:48 `max-specpdl-size' and `max-lisp-eval-depth' Hongyi Zhao
2021-09-26 2:36 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-26 6:33 ` Hongyi Zhao
2021-09-26 7:13 ` tomas
2021-09-26 11:26 ` Hongyi Zhao
2021-09-26 11:55 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-26 13:04 ` Eli Zaretskii
2021-09-26 15:01 ` Hongyi Zhao
2021-09-28 10:50 ` Stephen Berman
2021-09-28 11:03 ` Hongyi Zhao
2021-09-28 11:05 ` Emanuel Berg via Users list for the GNU Emacs text editor [this message]
2021-09-28 11:20 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-28 13:49 ` tomas
2021-09-28 14:08 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-28 14:19 ` tomas
2021-09-28 11:14 ` Lars Ingebrigtsen
2021-09-28 11:23 ` Stephen Berman
2021-09-29 5:53 ` Lars Ingebrigtsen
2021-09-26 3:53 ` [External] : " Drew Adams
2021-09-26 4:09 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-28 3:45 ` Google vi (was: Re: [External] : `max-specpdl-size' and `max-lisp-eval-depth') Emanuel Berg via Users list for the GNU Emacs text editor
2021-09-26 7:09 ` [External] : `max-specpdl-size' and `max-lisp-eval-depth' Hongyi Zhao
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