From: Michael Heerdegen <michael_heerdegen@web.de>
To: "Štěpán Němec" <stepnem@gmail.com>
Cc: Ivan Andrus <darthandrus@gmail.com>, 40692@debbugs.gnu.org
Subject: bug#40692: 28.0.50; Constant list modified inside function
Date: Sun, 19 Apr 2020 00:49:02 +0200 [thread overview]
Message-ID: <87sgh0xvdt.fsf@web.de> (raw)
In-Reply-To: <87ftd1883t.fsf@gmail.com> ("Štěpán Němec"'s message of "Sat, 18 Apr 2020 11:18:46 +0200")
Štěpán Němec <stepnem@gmail.com> writes:
> > Now, I understand reference semantics of lists in general, but it
> > seems like this should be different. If this behavior is intentional,
>
> I think it is, although I admit I was confused by it, too, as I've
> somehow come to believe that e.g. `(list) macroexpands to (list 'list),
> but that's not the case: it expands to '(list).
Yes, I had been bitten by this as well some time ago. I don't find the
discussion anymore, I had asked somewhere and the answer was that it's
an intended feature of backquote to produce an expansion like that.
Michael.
next prev parent reply other threads:[~2020-04-18 22:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-17 23:45 bug#40692: 28.0.50; Constant list modified inside function Ivan Andrus
2020-04-18 3:05 ` Ivan Andrus
2020-04-18 9:18 ` Štěpán Němec
2020-04-18 22:49 ` Michael Heerdegen [this message]
2020-04-19 7:08 ` Štěpán Němec
2021-08-29 22:18 ` Lars Ingebrigtsen
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