all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Jean Louis <bugs@gnu.support>
To: Drew Adams <drew.adams@oracle.com>
Cc: Michael Heerdegen <michael_heerdegen@web.de>,
	"help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: Re: [External] : Re: Emacs 30.0 warning from `cl-pushnew' and `memql'
Date: Thu, 29 Dec 2022 01:47:57 +0300	[thread overview]
Message-ID: <Y6zHnYWpSAsmSyTe@protected.localdomain> (raw)
In-Reply-To: <SJ0PR10MB5488388B2E527F9E4AD7E2BEF3F29@SJ0PR10MB5488.namprd10.prod.outlook.com>

* Drew Adams <drew.adams@oracle.com> [2022-12-29 00:24]:
> > Michael, what is the fastest way to add element on stack of the list
> > elements?
> > 
> > Let us say I am adding only strings, would this be faster than `push':
> > 
> > (setq my-list '())
> > (setq my-list (cons (quote "Word") my-list))
> 
> 
> I'm not Michael, but (push "Word" my-list) expands
> to just that code.  So no, neither is faster.
> 
> (macroexpand-1 '(push "Word" mylist))
> 
> ;; ==> (setq mylist (cons "Word" mylist))

Thanks.

> (And no reason to quote either () or a literal string.)

There was reason. See here:

(setq my-list '())
(benchmark 1000 (setq my-list (cons "Word" my-list)))

Debugger entered--Lisp error: (invalid-function "Word")
  ("Word")
  (closure (t) nil ("Word"))()
  benchmark-call((closure (t) nil ("Word")) 1000)
  benchmark(1000 ("Word"))
  eval((benchmark 1000 (setq my-list (cons "Word" my-list))) nil)
  elisp--eval-last-sexp(nil)
  eval-last-sexp(nil)
  funcall-interactively(eval-last-sexp nil)
  call-interactively(eval-last-sexp nil nil)
  command-execute(eval-last-sexp)

but then `benchmark` worked only first time, second time it gave
error.

-- 
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

In support of Richard M. Stallman
https://stallmansupport.org/



  reply	other threads:[~2022-12-28 22:47 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-26 20:38 Emacs 30.0 warning from `cl-pushnew' and `memql' Emanuel Berg
2022-12-27  6:56 ` Jean Louis
2022-12-27 10:28 ` Michael Heerdegen
2022-12-27 11:33   ` Emanuel Berg
2022-12-27 11:39   ` Emanuel Berg
2022-12-28  3:23     ` [External] : " Drew Adams
2022-12-28  4:23       ` Emanuel Berg
2022-12-29 22:27         ` Drew Adams
2022-12-30 22:27           ` Emanuel Berg
2022-12-30  6:30         ` tomas
2022-12-28  6:25     ` tomas
2022-12-28 11:59       ` Michael Heerdegen
2022-12-28 12:41         ` tomas
2022-12-28 12:45           ` Emanuel Berg
2022-12-28 13:19           ` Emanuel Berg
2022-12-28 14:54           ` Emanuel Berg
2022-12-29 22:31             ` Stefan Monnier via Users list for the GNU Emacs text editor
2023-01-08  4:18               ` Emanuel Berg
2023-01-08 18:54                 ` Andreas Eder
2022-12-28 17:57           ` [External] : " Drew Adams
2022-12-28 18:10             ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-28 19:29               ` Emanuel Berg
2022-12-28 19:35               ` Drew Adams
2022-12-28 19:36               ` tomas
2022-12-28 19:24             ` Emanuel Berg
2022-12-28 17:54         ` Drew Adams
2022-12-28 18:05           ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-28 19:35             ` Drew Adams
2022-12-29  3:34               ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-29 19:06                 ` Drew Adams
2022-12-29 19:45                   ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-29 22:00                     ` Drew Adams
2022-12-29 22:25                       ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-30  7:29                         ` Drew Adams
2022-12-30 18:55                           ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-30 22:55                             ` Drew Adams
2022-12-31  0:08                               ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-31  2:45                                 ` Drew Adams
2022-12-31  4:53                                   ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-28 19:21           ` Emanuel Berg
2022-12-28 20:24         ` Jean Louis
2022-12-28 20:56           ` Emanuel Berg
2022-12-28 21:24           ` [External] : " Drew Adams
2022-12-28 22:47             ` Jean Louis [this message]
2022-12-28 23:48               ` Emanuel Berg
2022-12-29  6:03               ` tomas
2022-12-29  6:59                 ` Emanuel Berg
2022-12-29  7:08                 ` Emanuel Berg
2022-12-29  7:19                 ` Emanuel Berg
2022-12-29 22:41                   ` Drew Adams
2022-12-30 23:03                     ` Emanuel Berg
2022-12-30  6:35                   ` tomas
2022-12-29  9:18                 ` Jean Louis
2022-12-29 10:04                   ` Emanuel Berg
2022-12-29 10:12                   ` tomas
2022-12-29 10:20                     ` Emanuel Berg
2022-12-29 10:26                     ` Emanuel Berg
2022-12-29 10:36                   ` Michael Heerdegen
2022-12-29 14:47                 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-12-29 10:39           ` Michael Heerdegen
2022-12-28 12:44       ` Emanuel Berg

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Y6zHnYWpSAsmSyTe@protected.localdomain \
    --to=bugs@gnu.support \
    --cc=drew.adams@oracle.com \
    --cc=help-gnu-emacs@gnu.org \
    --cc=michael_heerdegen@web.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.