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From: Drew Adams <drew.adams@oracle.com>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: "Paul Eggert" <eggert@cs.ucla.edu>,
	"João Távora" <joaotavora@gmail.com>,
	"Pip Cet" <pipcet@gmail.com>, emacs-devel <emacs-devel@gnu.org>
Subject: FW: 31395511: "Don’t attempt to modify constant strings"
Date: Fri, 5 Jun 2020 18:34:50 -0700 (PDT)	[thread overview]
Message-ID: <19454d0f-cf93-4fac-8a11-3f4ba5c52886@default> (raw)
In-Reply-To: bcde0400-8390-766f-2c19-d722a3097d99@yandex.ru

(Guess I forgot to use Reply All.  Re-sending.)

> > [bug#40671] is about modifying literal objects and this
> > particular strangeness seems bigger than that.
> 
> Later it goes deeper than that.
> 
> > But that's a far cry from having two different manifestations
> > of `equal` such objects _be_  the same object, but only for
> > compiled code.
>
> That looks suboptimal to me too.  I mean, it sounds like a sound
> optimization (to an extent), but I really wonder if it really buys us
> much in practice. And we're paying the price of not exactly obvious
> behavior.

Exactly the question - is it worth anything?  Is it
worth the cost of unclear and less useful behavior?




  reply	other threads:[~2020-06-06  1:34 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-03 21:52 31395511: "Don’t attempt to modify constant strings" João Távora
2020-06-03 22:41 ` Paul Eggert
2020-06-03 22:52   ` Pip Cet
2020-06-03 23:20     ` Paul Eggert
2020-06-03 23:20     ` Basil L. Contovounesios
2020-06-03 22:41 ` Pip Cet
2020-06-03 23:08   ` Basil L. Contovounesios
2020-06-03 23:31     ` Basil L. Contovounesios
2020-06-03 23:48   ` João Távora
2020-06-04  0:43     ` Paul Eggert
2020-06-04  1:19       ` Paul Eggert
2020-06-04  7:26         ` Pip Cet
2020-06-04 11:11           ` Basil L. Contovounesios
2020-06-04 19:46             ` Paul Eggert
2020-06-04 20:25               ` João Távora
2020-06-04 20:29                 ` Paul Eggert
2020-06-04 21:21                   ` Drew Adams
2020-06-04 20:43               ` Pip Cet
2020-06-04 21:27                 ` Stefan Monnier
2020-06-04 21:42                   ` Pip Cet
2020-06-04 23:10                 ` Paul Eggert
2020-06-05  2:09                   ` Clément Pit-Claudel
2020-06-05  6:44                     ` Paul Eggert
2020-06-05 12:44                       ` Stefan Monnier
2020-06-05 17:01                     ` Drew Adams
2020-06-05  9:48                   ` Pip Cet
2020-06-05 18:37                     ` Paul Eggert
2020-06-04 22:33               ` Basil L. Contovounesios
2020-06-05 15:25       ` João Távora
2020-06-05 17:14         ` Dmitry Gutov
2020-06-05 23:19           ` João Távora
2020-06-05 23:32             ` Dmitry Gutov
2020-06-06  1:34               ` Drew Adams [this message]
2020-06-06  0:23             ` Drew Adams
2020-06-06  1:43             ` Paul Eggert
2020-06-06  4:06               ` Richard Stallman
2020-06-06 11:41               ` João Távora
2020-06-06 11:47                 ` João Távora
2020-06-04  4:38     ` Pip Cet
2020-06-04  9:31       ` João Távora

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