From: Hongyi Zhao <hongyi.zhao@gmail.com>
To: Stephen Berman <stephen.berman@gmx.net>
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: `max-specpdl-size' and `max-lisp-eval-depth'
Date: Tue, 28 Sep 2021 19:03:40 +0800 [thread overview]
Message-ID: <CAGP6POJudNAKeCbvJyBB5jUr-PFBpOE4_6=JYUL0-wMEd2fwkQ@mail.gmail.com> (raw)
In-Reply-To: <87k0j1t1mv.fsf@gmx.net>
On Tue, Sep 28, 2021 at 6:50 PM Stephen Berman <stephen.berman@gmx.net> wrote:
>
> On Sun, 26 Sep 2021 23:01:17 +0800 Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
>
> > On Sun, Sep 26, 2021 at 9:04 PM Eli Zaretskii <eliz@gnu.org> wrote:
> >>
> >> > From: Hongyi Zhao <hongyi.zhao@gmail.com>
> >> > Date: Sun, 26 Sep 2021 19:26:22 +0800
> >> > Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
> >> >
> >> > what puzzles me most is what is the full English name of the word
> >> > `specpdl'.
> >>
> >> As I recently learned, PDL = push-down list.
> >
> > 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, thanks!
HZ
next prev parent reply other threads:[~2021-09-28 11:03 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 [this message]
2021-09-28 11:05 ` Emanuel Berg via Users list for the GNU Emacs text editor
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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