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From: Emanuel Berg <incal@dataswamp.org>
To: emacs-devel@gnu.org
Subject: Re: Display of undisplayable characters: \U01F3A8 instead of diamond
Date: Sat, 10 Sep 2022 06:41:32 +0200	[thread overview]
Message-ID: <87a6777seb.fsf@dataswamp.org> (raw)
In-Reply-To: 83r10kdd68.fsf@gnu.org

Eli Zaretskii wrote:

>>> Why does it matter?
>> 
>> Observe ...
>> 
>> Situation: You want to do this, f(x) = y.
>> 
>> Problem: f(x) is expensive to compute.
>> 
>> Solution: Compute it ONCE, then store f = ((x y) ...) in
>> a cache data file, so next time f(x) = y is needed, instead of
>> computing f(x) again search the data file - search, which
>> _isn't_ expensive.
>
> And I ask again: why does it matter whether you record
> a program or its data

If you store the result of running the program you don't need
to execute the program again next time you need the result,
instead you search for it and retrieve it, simple as that.

Only if it cannot be found do you execute (and then insert the
computed value), so optimally and in practice often execution
only has to be done once.

-- 
underground experts united
https://dataswamp.org/~incal




  reply	other threads:[~2022-09-10  4:41 UTC|newest]

Thread overview: 264+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-26  3:33 Display of undisplayable characters: \U01F3A8 instead of diamond Richard Stallman
2022-08-26  5:21 ` Emanuel Berg
2022-08-26  6:45 ` Eli Zaretskii
2022-08-26  8:23   ` Emanuel Berg
2022-08-26  8:45     ` Emanuel Berg
2022-08-26  9:05     ` Yuri Khan
2022-08-26  9:11       ` Emanuel Berg
2022-08-26  9:28         ` Yuri Khan
2022-08-26  9:40           ` Emanuel Berg
2022-08-26  9:47             ` Emanuel Berg
2022-08-26  9:50               ` Yuri Khan
2022-08-26  9:54                 ` Emanuel Berg
2022-08-26  9:50             ` Emanuel Berg
2022-08-28  4:04   ` Richard Stallman
2022-08-28  6:10     ` Eli Zaretskii
2022-08-28  6:51       ` Emanuel Berg
2022-08-28  7:04         ` Emanuel Berg
2022-08-28  7:09           ` Emanuel Berg
2022-08-28  7:10           ` Eli Zaretskii
2022-08-28  7:21             ` Emanuel Berg
2022-08-26  6:52 ` Kévin Le Gouguec
2022-08-26  7:15   ` Eli Zaretskii
2022-08-26  8:37     ` Emanuel Berg
2022-08-26  8:52       ` Emanuel Berg
2022-08-26  9:24         ` Emanuel Berg
2022-08-26  9:25         ` Andreas Schwab
2022-08-26  9:32           ` Emanuel Berg
2022-08-26 17:41     ` Kévin Le Gouguec
2022-08-26 19:34       ` Emanuel Berg
2022-08-28  4:04     ` Richard Stallman
2022-08-28  5:32       ` Emanuel Berg
2022-08-26  9:58 ` Gregory Heytings
2022-08-26 10:11   ` Emanuel Berg
2022-08-26 10:59     ` Gregory Heytings
2022-08-26 11:31       ` Emanuel Berg
2022-08-26 12:15         ` Gregory Heytings
2022-08-26 12:56   ` Alan Mackenzie
2022-08-26 13:29     ` Gregory Heytings
2022-08-28 10:35       ` Alan Mackenzie
2022-08-28 10:41         ` Eli Zaretskii
2022-08-28 13:00           ` Gregory Heytings
2022-08-28 14:18             ` Eli Zaretskii
2022-08-28 14:44               ` Gregory Heytings
2022-08-28 15:05                 ` Eli Zaretskii
2022-08-28 15:18                   ` Gregory Heytings
2022-08-28 15:34                     ` Eli Zaretskii
2022-08-28 15:53                       ` Gregory Heytings
2022-08-28 16:00                         ` Eli Zaretskii
2022-08-28 16:07                           ` Gregory Heytings
2022-08-28 16:09                             ` Eli Zaretskii
2022-08-28 20:07                 ` Gregory Heytings
2022-08-29 11:03                   ` Eli Zaretskii
2022-08-29 18:48                     ` Gregory Heytings
2022-08-28 15:39               ` Alan Mackenzie
2022-08-28 15:43                 ` Eli Zaretskii
2022-08-28 15:35             ` Alan Mackenzie
2022-08-28 15:37               ` Eli Zaretskii
2022-08-28 15:46               ` Gregory Heytings
2022-08-28 16:14                 ` Alan Mackenzie
2022-08-28 16:53                   ` Gregory Heytings
2022-08-28 18:27                 ` Stefan Monnier
2022-08-28 18:44                   ` Stefan Monnier
2022-08-28 18:45                   ` Alan Mackenzie
2022-08-28 20:09                     ` Gregory Heytings
2022-08-28 20:37                       ` Alan Mackenzie
2022-08-28 20:09             ` Emanuel Berg
2022-08-28 14:25           ` Alan Mackenzie
2022-08-28 14:59             ` Gregory Heytings
2022-08-28 20:05           ` Emanuel Berg
2022-08-29 10:58             ` Eli Zaretskii
2022-08-29 11:26               ` Yuri Khan
2022-08-29 11:37                 ` Eli Zaretskii
2022-08-29 12:21                   ` Alan Mackenzie
2022-08-28 12:40         ` Gregory Heytings
2022-08-26 21:45 ` Alan Mackenzie
2022-08-26 22:56   ` Emanuel Berg
2022-08-27  7:12     ` Eli Zaretskii
2022-08-27  7:22       ` Visuwesh
2022-08-27  9:11         ` Eli Zaretskii
2022-08-27 10:43           ` Visuwesh
2022-08-28  4:04   ` Richard Stallman
2022-08-28  5:22     ` Eli Zaretskii
2022-08-28 10:07       ` Alan Mackenzie
2022-08-28 10:29         ` Eli Zaretskii
2022-08-28 11:07           ` Alan Mackenzie
2022-08-28 11:44             ` Eli Zaretskii
2022-08-28 13:56               ` Alan Mackenzie
2022-08-27  5:44 ` Akib Azmain Turja
2022-08-27  7:29   ` Andreas Schwab
2022-08-27  9:13     ` Eli Zaretskii
2022-08-27 17:24       ` Emanuel Berg
2022-08-27 17:41         ` Eli Zaretskii
2022-08-27 21:50           ` Emanuel Berg
2022-08-28  2:15             ` Emanuel Berg
2022-08-28  5:45             ` Eli Zaretskii
2022-08-28  6:02               ` Emanuel Berg
2022-08-27 17:22   ` Emanuel Berg
2022-08-29  3:36   ` Richard Stallman
2022-08-29 13:00     ` Eli Zaretskii
2022-08-30  4:12       ` Richard Stallman
2022-08-30 11:41         ` Eli Zaretskii
2022-08-30 12:15           ` Eli Zaretskii
2022-08-30 15:44         ` Gregory Heytings
2022-08-31  0:34           ` Emanuel Berg
2022-08-31  2:35             ` Eli Zaretskii
2022-08-31  3:00               ` Emanuel Berg
2022-08-31 11:00                 ` Eli Zaretskii
2022-09-01 23:32           ` Richard Stallman
2022-09-01 23:39             ` Emanuel Berg
2022-09-01 23:49               ` Emanuel Berg
2022-09-02  6:37             ` Eli Zaretskii
2022-09-02 12:21               ` Akib Azmain Turja
2022-09-02 12:36                 ` Eli Zaretskii
2022-09-02 12:39                 ` Gregory Heytings
2022-09-03  2:51                 ` Richard Stallman
2022-09-03  3:04                   ` Emanuel Berg
2022-09-03  6:35                   ` Akib Azmain Turja
2022-09-03  6:54                   ` Gregory Heytings
2022-09-03  8:13                     ` Emanuel Berg
2022-09-03  8:55                       ` Gregory Heytings
2022-09-03  9:04                         ` Emanuel Berg
2022-09-03  9:34                           ` Eli Zaretskii
2022-09-03  9:42                             ` Emanuel Berg
2022-09-03  9:55                               ` Eli Zaretskii
2022-09-03 12:48                                 ` Akib Azmain Turja
2022-09-08  2:56                             ` Richard Stallman
2022-09-08  7:16                               ` Eli Zaretskii
2022-09-08  9:14                               ` Gregory Heytings
2022-09-09  3:03                                 ` Richard Stallman
2022-09-09  7:30                                   ` Gregory Heytings
2022-09-09  8:10                                     ` Po Lu
2022-09-09 10:08                                       ` Emanuel Berg
2022-09-09 10:13                                         ` Gregory Heytings
2022-09-09 10:25                                           ` Emanuel Berg
2022-09-09 11:11                                             ` Eli Zaretskii
2022-09-09 11:04                                         ` Eli Zaretskii
2022-09-09 10:13                                       ` Emanuel Berg
2022-09-09 11:10                                         ` Eli Zaretskii
2022-09-09 10:52                                       ` Eli Zaretskii
2022-09-10  1:42                                         ` Emanuel Berg
2022-09-09 11:18                                       ` Gregory Heytings
2022-09-09 13:47                                         ` Po Lu
2022-09-09 14:08                                           ` Gregory Heytings
2022-09-10 15:09                                             ` Emanuel Berg
2022-09-09 14:15                                           ` Eli Zaretskii
2022-09-10 15:01                                           ` Emanuel Berg
2022-09-10 14:56                                         ` Emanuel Berg
2022-09-09 10:09                                     ` Emanuel Berg
2022-09-03  9:17                     ` Yuri Khan
2022-09-03  9:28                       ` Gregory Heytings
2022-09-03  9:36                         ` Emanuel Berg
2022-09-03  9:31                       ` Emanuel Berg
2022-09-03  9:40                         ` Yuri Khan
2022-09-03  9:47                           ` Emanuel Berg
2022-09-03 10:00                             ` Emanuel Berg
2022-09-03 12:47                               ` Akib Azmain Turja
2022-09-05  2:47                                 ` Emanuel Berg
2022-09-05  6:08                                   ` enum (was: Re: Display of undisplayable characters: \U01F3A8 instead of diamond) Emanuel Berg
2022-09-08  4:50                                     ` enum Emanuel Berg
2022-09-05  4:05                     ` Display of undisplayable characters: \U01F3A8 instead of diamond Richard Stallman
2022-09-05  4:51                       ` Emanuel Berg
2022-09-03  2:51               ` Richard Stallman
2022-09-02  7:28             ` Gregory Heytings
2022-09-02 11:12               ` Alan Mackenzie
2022-09-02 11:29                 ` Eli Zaretskii
2022-09-02 13:39                   ` Alan Mackenzie
2022-09-02 13:44                     ` Gregory Heytings
2022-09-02 13:59                     ` Eli Zaretskii
2022-09-02 16:12                       ` Alan Mackenzie
2022-09-02 16:26                         ` Eli Zaretskii
2022-09-03  5:27                           ` Tomas Hlavaty
2022-09-03  8:15                             ` Emanuel Berg
2022-09-03  8:29                               ` Emanuel Berg
2022-09-05  4:05                                 ` Richard Stallman
2022-09-04 13:23                           ` Andreas Schwab
2022-09-02 19:19                         ` Gregory Heytings
2022-09-03  2:51                       ` Richard Stallman
2022-09-03  6:44                         ` Eli Zaretskii
2022-09-04 11:23                           ` Alan Mackenzie
2022-09-04 13:01                             ` Eli Zaretskii
2022-09-05 18:59                               ` Alan Mackenzie
2022-09-06  4:15                                 ` Richard Stallman
2022-09-05  4:01                             ` Richard Stallman
2022-09-05  4:05                           ` Richard Stallman
2022-09-05  4:55                             ` Emanuel Berg
2022-09-05 11:33                             ` Eli Zaretskii
2022-09-06  4:20                               ` Emanuel Berg
2022-09-06 10:01                                 ` Eli Zaretskii
2022-09-06 10:38                                   ` Emanuel Berg
2022-09-06 13:03                                     ` Eli Zaretskii
2022-09-07  1:03                                       ` Emanuel Berg
2022-09-07  2:37                                         ` Eli Zaretskii
2022-09-07  3:21                                           ` Emanuel Berg
2022-09-07 11:02                                             ` Eli Zaretskii
2022-09-07 13:12                                               ` Yuri Khan
2022-09-07 13:34                                                 ` Eli Zaretskii
2022-09-07 13:58                                                   ` Yuri Khan
2022-09-07 14:20                                                     ` Eli Zaretskii
2022-09-07 15:48                                                       ` Tomas Hlavaty
2022-09-07 16:48                                                         ` Stefan Monnier
2022-09-07 17:02                                                           ` Tomas Hlavaty
2022-09-08 12:26                                                           ` Emanuel Berg
2022-09-07 18:03                                                         ` Eli Zaretskii
2022-09-08 12:28                                                           ` Emanuel Berg
2022-09-08 12:24                                                         ` Emanuel Berg
2022-09-07 17:29                                                       ` Yuri Khan
2022-09-07 18:32                                                         ` Eli Zaretskii
2022-09-09  9:56                                                           ` Emanuel Berg
2022-09-09 11:01                                                             ` Eli Zaretskii
2022-09-10  4:41                                                               ` Emanuel Berg [this message]
2022-09-10  6:33                                                                 ` Eli Zaretskii
2022-09-10 15:19                                                                   ` Emanuel Berg
2022-09-10 15:40                                                                     ` Eli Zaretskii
2022-09-10 15:55                                                                       ` Emanuel Berg
2022-09-10 17:18                                                                         ` Emanuel Berg
2022-09-20  1:09                                                                           ` Emanuel Berg
2022-09-08 12:29                                                         ` Emanuel Berg
2022-09-08 12:14                                                       ` Emanuel Berg
2022-09-08  2:12                                                     ` Emanuel Berg
2022-09-08  1:32                                                 ` Emanuel Berg
2022-09-08  6:17                                                   ` Eli Zaretskii
2022-09-09  9:59                                                     ` Emanuel Berg
2022-09-09 11:02                                                       ` Eli Zaretskii
2022-09-10  6:49                                                       ` Richard Stallman
2022-09-07  2:19                               ` Richard Stallman
2022-09-07 13:21                                 ` Eli Zaretskii
2022-09-03  2:51                     ` Richard Stallman
2022-09-03  3:09                       ` Emanuel Berg
2022-09-03  6:36                       ` Eli Zaretskii
2022-09-06  4:13                         ` Richard Stallman
2022-09-06  4:18                           ` Emanuel Berg
2022-09-08  2:56                             ` Richard Stallman
2022-09-02 11:39                 ` Gregory Heytings
2022-09-02 12:30                   ` Eli Zaretskii
2022-09-02 12:44                     ` Gregory Heytings
2022-09-02 13:14                       ` Eli Zaretskii
2022-09-02 14:15                         ` Gregory Heytings
2022-09-02 15:20                           ` Eli Zaretskii
2022-09-02 15:27                             ` Gregory Heytings
2022-09-02 15:34                               ` Gregory Heytings
2022-09-02 15:45                                 ` Gregory Heytings
2022-09-02 16:06                                   ` Eli Zaretskii
2022-09-02 16:30                                     ` Eli Zaretskii
2022-09-02 16:37                                     ` Gregory Heytings
2022-09-02 16:55                                       ` Andreas Schwab
2022-09-02 16:56                                         ` Gregory Heytings
2022-09-02 18:19                                           ` Eli Zaretskii
2022-09-02 18:24                                             ` Eli Zaretskii
2022-09-02 19:13                                               ` Gregory Heytings
2022-09-02 16:03                                 ` Eli Zaretskii
2022-09-02 16:02                               ` Eli Zaretskii
2022-09-02 13:13                   ` Alan Mackenzie
2022-09-02 13:41                     ` Gregory Heytings
2022-09-02 15:38                       ` Alan Mackenzie
2022-09-02 16:00                         ` Gregory Heytings
2022-09-02 16:32                           ` Stefan Monnier
2022-09-02 16:55                         ` Yuri Khan
2022-09-03  5:35                         ` Tomas Hlavaty
2022-09-03  5:49                           ` Jean Louis
2022-09-03  9:16                             ` Emanuel Berg
2022-09-03  6:46                           ` Gregory Heytings
2022-09-02 11:47     ` Akib Azmain Turja
2022-09-02 12:07       ` Gregory Heytings
2022-09-02 12:45       ` Eli Zaretskii

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