unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Eli Zaretskii <eliz@gnu.org>
To: Ihor Radchenko <yantar92@posteo.net>
Cc: ams@gnu.org, incal@dataswamp.org, emacs-devel@gnu.org
Subject: Re: Shrinking the C core
Date: Mon, 21 Aug 2023 13:48:26 +0300	[thread overview]
Message-ID: <83y1i4vfgl.fsf@gnu.org> (raw)
In-Reply-To: <87v8d95918.fsf@localhost> (message from Ihor Radchenko on Mon, 21 Aug 2023 04:11:47 +0000)

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: ams@gnu.org, incal@dataswamp.org, emacs-devel@gnu.org
> Date: Mon, 21 Aug 2023 04:11:47 +0000
> 
> > Cut them how?  AFAICT, none of the tests above are redundant.
> 
> Consider the following:
> 
> (let ((a 10))
>   (setq a (+ a 100))
>   (floor a nil))
> 
> During compilation of the above code, the compiler will know that a is a
> positive integer.

It will?  What happens if a overflows?

> Therefore, CHECK_NUMBER, NILP, and FLOATP are not
> necessary and can be omitted in the call to `floor':

If you want to program in C or Fortran, then program in C or Fortran.
Lisp is an interpreted environment that traditionally includes safety
nets.  People actually complain to us, and rightfully so, when Emacs
crashes or produces corrupted results instead if signaling an error
pointing out invalid input or other run-time problems.



  parent reply	other threads:[~2023-08-21 10:48 UTC|newest]

Thread overview: 331+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-09  9:46 Shrinking the C core Eric S. Raymond
2023-08-09 10:55 ` Andreas Schwab
2023-08-09 11:03   ` Eric S. Raymond
2023-08-09 11:29     ` Andreas Schwab
2023-08-09 12:34 ` Po Lu
2023-08-09 15:51   ` Eric S. Raymond
2023-08-09 23:56     ` Po Lu
2023-08-10  1:19       ` Eric S. Raymond
2023-08-10  1:47         ` Christopher Dimech
2023-08-10  1:58         ` Eric Frederickson
2023-08-10  2:07           ` Sam James
2023-08-10  2:44             ` Po Lu
2023-08-10  6:48             ` Eli Zaretskii
2023-08-10 21:21               ` Eric S. Raymond
2023-08-10 21:19             ` Eric S. Raymond
2023-08-10 21:56               ` Emanuel Berg
2023-08-11  5:46               ` Eli Zaretskii
2023-08-11  8:45                 ` Emanuel Berg
2023-08-11 11:24                   ` Eli Zaretskii
2023-08-11 12:12                     ` Emanuel Berg
2023-08-11 13:16                       ` Eli Zaretskii
2023-08-10  2:28         ` Po Lu
2023-08-10  4:15           ` Christopher Dimech
2023-08-10  7:44         ` Eli Zaretskii
2023-08-10 21:54           ` Emanuel Berg
2023-08-11 10:27             ` Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 12:10               ` Emanuel Berg
2023-08-11 12:32                 ` Ihor Radchenko
2023-08-11 12:38                   ` Emanuel Berg
2023-08-11 14:07                     ` [PATCH] " Ihor Radchenko
2023-08-11 18:06                       ` Emanuel Berg
2023-08-11 19:41                         ` Ihor Radchenko
2023-08-11 19:50                           ` Emanuel Berg
2023-08-12  8:24                             ` Ihor Radchenko
2023-08-12 16:03                               ` Emanuel Berg
2023-08-13  9:09                                 ` Ihor Radchenko
2023-08-13  9:49                                   ` Emanuel Berg
2023-08-13 10:21                                     ` Ihor Radchenko
2023-08-14  2:20                                       ` Emanuel Berg
2023-08-14  2:42                                         ` [PATCH] Re: Bignum performance Po Lu
2023-08-14  4:16                                           ` Emanuel Berg
2023-08-14  7:15                                           ` Ihor Radchenko
2023-08-14  7:50                                             ` Po Lu
2023-08-14  9:28                                               ` Ihor Radchenko
2023-08-15 14:28                                             ` Emanuel Berg
2023-08-14  7:20                                         ` [PATCH] Re: Bignum performance (was: Shrinking the C core) Ihor Radchenko
2023-08-11 22:46                           ` Emanuel Berg
2023-08-12  8:30                             ` Ihor Radchenko
2023-08-12 16:22                               ` Emanuel Berg
2023-08-13  9:12                                 ` Ihor Radchenko
2023-08-11 14:14               ` Mattias Engdegård
2023-08-11 18:09                 ` Emanuel Berg
2023-08-10 23:49           ` Shrinking the C core Eric S. Raymond
2023-08-11  0:03             ` Christopher Dimech
2023-08-11  8:24               ` Immanuel Litzroth
2023-08-11  7:03             ` Eli Zaretskii
2023-08-11  7:19               ` tomas
2023-08-11 10:57               ` Eli Zaretskii
2023-08-10 11:28         ` Dmitry Gutov
2023-08-10 21:26           ` Eric S. Raymond
2023-08-12  2:46           ` Richard Stallman
2023-08-12  3:22             ` Emanuel Berg
2023-08-12  8:33               ` Ihor Radchenko
2023-08-12 15:58                 ` Emanuel Berg
2023-08-13  9:13                   ` Ihor Radchenko
2023-08-13  9:55                     ` Emanuel Berg
2023-08-13 10:23                       ` Ihor Radchenko
2023-08-13 20:55                         ` Emanuel Berg
2023-08-14  0:13                         ` Emanuel Berg
2023-08-12 18:32               ` tomas
2023-08-12 22:08                 ` Emanuel Berg
2023-08-12 23:09                 ` Emanuel Berg
2023-08-13  5:50                   ` tomas
2023-08-13  8:38                     ` Emanuel Berg
2023-08-13 15:54                     ` [External] : " Drew Adams
2023-08-13  8:00                   ` Andreas Schwab
2023-08-13  9:21                     ` Emanuel Berg
2023-08-14  7:27                       ` Alfred M. Szmidt
2023-08-14  7:36                         ` Ihor Radchenko
2023-08-14  7:50                           ` Alfred M. Szmidt
2023-08-15 22:57                             ` Emanuel Berg
2023-08-16 10:27                               ` Ihor Radchenko
2023-08-19 13:29                                 ` Emanuel Berg
2023-08-20  5:09                                   ` Ihor Radchenko
2023-08-20  6:51                                     ` Emanuel Berg
2023-08-20  7:14                                       ` Ihor Radchenko
2023-08-20  7:52                                         ` Emanuel Berg
2023-08-20 13:01                                           ` tomas
2023-08-20 13:12                                             ` Ihor Radchenko
2023-08-20  8:28                                         ` Alfred M. Szmidt
2023-08-20  9:29                                           ` Emanuel Berg
2023-08-20 15:22                                             ` Alfred M. Szmidt
2023-08-20 15:36                                               ` Ihor Radchenko
2023-08-20 15:45                                                 ` Eli Zaretskii
2023-08-20 15:54                                                   ` Ihor Radchenko
2023-08-20 16:29                                                     ` Alfred M. Szmidt
2023-08-20 16:37                                                       ` Ihor Radchenko
2023-08-20 17:19                                                         ` Alfred M. Szmidt
2023-08-20 17:31                                                           ` Ihor Radchenko
2023-08-20 18:54                                                             ` Alfred M. Szmidt
2023-08-20 19:07                                                               ` Eli Zaretskii
2023-08-27  3:53                                                                 ` Emanuel Berg
2023-08-20 19:15                                                               ` Ihor Radchenko
2023-08-20 19:24                                                                 ` Ihor Radchenko
2023-08-21  2:33                                                                   ` Eli Zaretskii
2023-08-21  4:11                                                                     ` Ihor Radchenko
2023-08-21  4:15                                                                       ` Po Lu
2023-08-21  4:36                                                                         ` Ihor Radchenko
2023-08-21  4:43                                                                           ` Po Lu
2023-08-21  5:06                                                                             ` Ihor Radchenko
2023-08-21  5:25                                                                               ` [External] : " Drew Adams
2023-08-21  5:34                                                                               ` Po Lu
2023-08-21  9:17                                                                                 ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Ihor Radchenko
2023-08-21  9:42                                                                                   ` Gregory Heytings
2023-08-21 10:36                                                                                     ` Ihor Radchenko
2023-08-21 11:02                                                                                       ` Alfred M. Szmidt
2023-08-21 11:41                                                                                         ` Ihor Radchenko
2023-08-21 12:20                                                                                           ` Eli Zaretskii
2023-08-21 14:49                                                                                             ` Add more supported primitives in libgccjit IR Andrea Corallo
2023-08-23 10:11                                                                                               ` Ihor Radchenko
2023-08-25  9:19                                                                                                 ` Andrea Corallo
2023-08-25 11:06                                                                                                   ` Ihor Radchenko
2023-08-25 14:26                                                                                                     ` Andrea Corallo
2023-08-26 11:14                                                                                                       ` Ihor Radchenko
2023-08-27  1:40                                                                                                   ` Emanuel Berg
2023-08-27  7:38                                                                                                     ` Emanuel Berg
2023-08-27 13:42                                                                                                       ` Andrea Corallo
2023-08-27 22:19                                                                                                         ` Emanuel Berg
2023-08-28  5:04                                                                                                           ` Andrea Corallo
2023-08-28 19:49                                                                                                             ` Emanuel Berg
2023-08-26  0:47                                                                                               ` Emanuel Berg
2023-08-26  8:26                                                                                                 ` Ihor Radchenko
2023-08-26 17:52                                                                                                   ` Emanuel Berg
2023-08-21 11:05                                                                                       ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Gregory Heytings
2023-08-21 11:46                                                                                         ` Ihor Radchenko
2023-08-21 12:33                                                                                           ` Gregory Heytings
2023-08-21 11:34                                                                                       ` Add more supported primitives in libgccjit IR Manuel Giraud via Emacs development discussions.
2023-08-21 11:02                                                                                     ` Add more supported primitives in libgccjit IR (was: Shrinking the C core) Alfred M. Szmidt
2023-08-21 11:12                                                                                   ` Add more supported primitives in libgccjit IR Eli Zaretskii
2023-08-21 11:53                                                                                     ` Ihor Radchenko
2023-08-27  2:04                                                                                 ` Shrinking the C core Emanuel Berg
2023-08-21  7:59                                                                               ` Gregory Heytings
2023-08-27  5:31                                                                               ` Emanuel Berg
2023-08-27  6:16                                                                                 ` Emanuel Berg
2023-08-21 10:48                                                                       ` Eli Zaretskii [this message]
2023-08-21 11:56                                                                         ` Ihor Radchenko
2023-08-21 12:22                                                                           ` Eli Zaretskii
2023-08-28  4:41                                                                   ` Emanuel Berg
2023-08-28 11:27                                                                     ` Ihor Radchenko
2023-08-20 20:15                                                                 ` Alfred M. Szmidt
2023-08-20 20:39                                                                   ` Ihor Radchenko
2023-08-21  5:59                                                                     ` Alfred M. Szmidt
2023-08-21  6:23                                                                       ` Ihor Radchenko
2023-08-21  7:21                                                                         ` Alfred M. Szmidt
2023-08-21  7:26                                                                           ` Ihor Radchenko
2023-08-21  7:52                                                                             ` Alfred M. Szmidt
2023-08-21 10:46                                                                               ` Ihor Radchenko
2023-08-21 11:02                                                                                 ` Alfred M. Szmidt
2023-08-27  4:01                                                                 ` Emanuel Berg
2023-08-27  8:53                                                                   ` Ihor Radchenko
2023-08-27  3:48                                                               ` Emanuel Berg
2023-08-27  9:06                                                                 ` Ihor Radchenko
2023-08-27  3:25                                                   ` Emanuel Berg
2023-08-27  8:55                                                     ` Ihor Radchenko
2023-08-20 16:03                                                 ` Alfred M. Szmidt
2023-08-20 16:34                                                   ` Ihor Radchenko
2023-08-20 17:19                                                     ` Alfred M. Szmidt
2023-08-20 17:25                                                       ` Ihor Radchenko
2023-08-20 18:54                                                         ` Alfred M. Szmidt
2023-08-20 19:02                                                           ` Eli Zaretskii
2023-08-20 20:11                                                             ` Alfred M. Szmidt
2023-08-23 21:09                                                               ` Emanuel Berg
2023-08-26  2:01                                                                 ` Richard Stallman
2023-08-26  5:48                                                                   ` Eli Zaretskii
2023-08-26 18:15                                                                     ` Emanuel Berg
2023-08-26 18:27                                                                       ` Eli Zaretskii
2023-08-20 19:14                                                 ` Eli Zaretskii
2023-08-20 19:44                                                   ` Ihor Radchenko
2023-08-20 20:11                                                     ` Alfred M. Szmidt
2023-08-21  2:35                                                     ` Eli Zaretskii
2023-08-21  8:48                                                       ` Ihor Radchenko
2023-08-21 11:10                                                         ` Eli Zaretskii
2023-08-21 11:59                                                           ` Ihor Radchenko
2023-08-21 12:23                                                             ` Eli Zaretskii
2023-08-23 10:13                                                               ` Ihor Radchenko
2023-08-20 20:32                                               ` Emanuel Berg
2023-08-21  6:19                                                 ` Alfred M. Szmidt
2023-08-21  6:26                                                   ` Ihor Radchenko
2023-08-21  7:21                                                     ` Alfred M. Szmidt
2023-08-21  7:25                                                       ` Ihor Radchenko
2023-08-21  7:52                                                         ` Alfred M. Szmidt
2023-08-21 11:26                                                           ` Ihor Radchenko
2023-08-22 23:55                                                   ` Emanuel Berg
2023-08-23  7:04                                                     ` Alfred M. Szmidt
2023-08-23 17:24                                                       ` Emanuel Berg
2023-08-24 20:02                                                         ` Emanuel Berg
2023-08-20 21:51                                       ` [External] : " Drew Adams
2023-08-21  8:54                                         ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-21  9:30                                           ` Gerd Möllmann
2023-08-21 11:13                                             ` Type declarations in Elisp Eli Zaretskii
2023-08-21 11:37                                             ` Type declarations in Elisp (was: [External] : Re: Shrinking the C core) Ihor Radchenko
2023-08-22  5:34                                               ` Type declarations in Elisp Gerd Möllmann
2023-08-22  6:16                                                 ` Ihor Radchenko
2023-08-22 11:14                                                 ` Eli Zaretskii
2023-08-22 23:33                                                   ` Emanuel Berg
2023-08-25  9:29                                                     ` Andrea Corallo
2023-08-25 20:42                                                       ` Emanuel Berg
2023-08-27  8:42                                                     ` Ihor Radchenko
2023-08-27 14:04                                                       ` Andrea Corallo
2023-08-27 14:07                                                         ` Ihor Radchenko
2023-08-27 15:46                                                           ` Andrea Corallo
2023-08-27 17:15                                                             ` Ihor Radchenko
2023-08-27 18:06                                                               ` Andrea Corallo
2023-08-28  9:56                                                                 ` Ihor Radchenko
2023-08-28 19:06                                                                   ` Emanuel Berg
2023-08-18  8:35                               ` Shrinking the C core Aurélien Aptel
2023-08-19 13:32                                 ` Emanuel Berg
2023-08-31  1:41                                 ` Emanuel Berg
2023-08-14  2:36                   ` Richard Stallman
2023-08-14  4:12                     ` Emanuel Berg
2023-08-14 11:15                       ` Ihor Radchenko
2023-08-12  3:28             ` Christopher Dimech
2023-08-12  3:48               ` Emanuel Berg
2023-08-12  3:50               ` Emanuel Berg
2023-08-12  6:00                 ` Christopher Dimech
2023-08-12  6:02               ` Eli Zaretskii
2023-08-12  7:38                 ` Christopher Dimech
2023-08-09 12:45 ` Eli Zaretskii
2023-08-09 16:11   ` Eric S. Raymond
2023-08-09 16:44     ` Eli Zaretskii
2023-08-09 17:57       ` Eric S. Raymond
  -- strict thread matches above, loose matches on Subject: below --
2023-08-13  7:59 Gerd Möllmann
2023-08-13  8:44 ` Emanuel Berg
2023-08-13  8:06 Gerd Möllmann
2023-08-13  9:26 ` Emanuel Berg
2023-08-13 11:20 Gerd Möllmann
2023-08-13 12:52 ` Ihor Radchenko
2023-08-27 15:14 Arthur Miller
2023-08-27 16:29 ` Eli Zaretskii
2023-08-28  5:32   ` Gerd Möllmann
2023-08-28  6:23     ` Arthur Miller
2023-08-28  6:21   ` Arthur Miller
2023-08-28  1:31 ` Richard Stallman
2023-08-28  5:50   ` Arthur Miller
2023-08-28 12:20     ` Po Lu
2023-08-28 14:39       ` Arthur Miller
2023-08-28 15:17         ` Po Lu
2023-08-29  2:41           ` Arthur Miller
2023-08-28  1:41 ` Po Lu
2023-08-28  2:53   ` chad
2023-08-28  3:43   ` Emanuel Berg
2023-08-28  4:53   ` Arthur Miller
2023-08-28  5:36     ` Po Lu
2023-08-28  6:55       ` Arthur Miller
2023-08-28  7:31         ` Po Lu
2023-08-28  8:06           ` Ihor Radchenko
2023-08-28 14:30             ` Arthur Miller
2023-08-28 15:09               ` Ihor Radchenko
2023-08-29  2:20                 ` Arthur Miller
2023-08-28 15:14               ` Po Lu
2023-08-29  2:36                 ` Arthur Miller
2023-08-29  4:07                   ` Po Lu
2023-08-31  1:07                 ` Emanuel Berg
2023-08-28 14:08           ` Arthur Miller
2023-08-28 15:08             ` Po Lu
2023-08-29  2:06               ` Arthur Miller
2023-08-29  4:15                 ` Po Lu
2023-08-29 11:50                   ` Eli Zaretskii
2023-08-29  3:57               ` Arthur Miller
2023-09-01  1:18                 ` Richard Stallman
2023-08-31  2:07             ` Richard Stallman
2023-09-01 14:58               ` Arthur Miller
2023-09-01 16:36                 ` tomas
2023-09-04  1:32                 ` Richard Stallman
2023-09-04  1:44                   ` Emanuel Berg
2023-09-04  5:49                     ` Rudolf Schlatte
2023-09-04 14:08                       ` Emanuel Berg
2023-09-07  1:21                     ` Richard Stallman
2023-09-07  1:54                       ` Emanuel Berg
2023-09-07  7:02                         ` tomas
2023-09-07  7:36                         ` Alfred M. Szmidt
2023-09-07  7:56                           ` Emanuel Berg
2023-09-07  8:19                             ` Ihor Radchenko
2023-09-07  8:39                               ` Emanuel Berg
2023-09-07  9:28                                 ` Alfred M. Szmidt
2023-09-09  1:00                                   ` Emanuel Berg
2023-09-09  6:25                                     ` Po Lu
2023-09-09  7:24                                       ` Eli Zaretskii
2023-09-07  9:31                                 ` Eli Zaretskii
2023-09-07  9:39                                 ` Ihor Radchenko
2023-09-09  1:06                                   ` Emanuel Berg
2023-09-11  0:43                         ` Richard Stallman
2023-09-11 12:24                           ` Eli Zaretskii
2023-09-11 12:43                             ` tomas
2023-09-13  5:59                               ` Emanuel Berg
2023-09-12  4:44                             ` Gerd Möllmann
2023-09-12 12:25                               ` João Távora
2023-09-12 11:31                             ` Lynn Winebarger
2023-09-13  6:12                               ` Emanuel Berg
2023-09-05  4:23                   ` Arthur Miller
2023-09-06  0:58               ` Richard Stallman
2023-09-06  1:12                 ` Emanuel Berg
2023-09-06  5:04                 ` Arthur Miller
2023-09-06 11:29                   ` Alan Mackenzie
2023-09-06 23:03                     ` Emanuel Berg
2023-09-07  7:00                       ` tomas
2023-09-07  7:23                         ` Emanuel Berg
2023-09-07  5:30                     ` Po Lu
2023-09-07  6:15                       ` Emanuel Berg
2023-09-11  0:43                         ` Richard Stallman
2023-09-11 12:05                           ` Eli Zaretskii
2023-09-12 23:55                             ` Richard Stallman
2023-09-13  6:34                           ` Emanuel Berg
2023-09-07  8:51                       ` Manuel Giraud via Emacs development discussions.
2023-09-07  9:20                         ` Po Lu
2023-09-07  9:34                           ` Eli Zaretskii
2023-09-08  2:00                     ` Arthur Miller
2023-09-08  7:35                       ` Gerd Möllmann
2023-09-09 10:05                         ` João Távora
2023-09-08 17:58                       ` Bob Rogers
2023-09-15 21:59                       ` Emanuel Berg
2023-09-17 23:03                         ` Richard Stallman
2023-09-09  0:39                   ` Richard Stallman
2023-09-09 12:50                     ` Arthur Miller
2023-09-12  0:27                       ` Richard Stallman
2023-08-28  7:45       ` Andrea Monaco
2023-08-28 14:35         ` Arthur Miller
2023-09-12  3:46 Arthur Miller
2023-09-12  3:51 Arthur Miller
2023-09-12  4:47 ` tomas
2023-09-12 13:02 ` Alfred M. Szmidt

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

  List information: https://www.gnu.org/software/emacs/

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

  git send-email \
    --in-reply-to=83y1i4vfgl.fsf@gnu.org \
    --to=eliz@gnu.org \
    --cc=ams@gnu.org \
    --cc=emacs-devel@gnu.org \
    --cc=incal@dataswamp.org \
    --cc=yantar92@posteo.net \
    /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 public inbox

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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).