From: Sam Steingold <sds@gnu.org>
To: help-gnu-emacs@gnu.org, Michael Heerdegen <michael_heerdegen@web.de>
Subject: Re: Calling a function with undefined symbol
Date: Wed, 02 Nov 2022 10:25:24 -0400 [thread overview]
Message-ID: <lzzgd9l9gr.fsf@3c22fb11fdab.ant.amazon.com> (raw)
In-Reply-To: <87wn8dzh6o.fsf@web.de> (Michael Heerdegen's message of "Wed, 02 Nov 2022 13:14:55 +0100")
> * Michael Heerdegen <zvpunry_urreqrtra@jro.qr> [2022-11-02 13:14:55 +0100]:
>
> Say the variable `x` is bound to
>
> '''''''''''''''''''''''''''''''''...
i.e.,
(defconst x #1=(quote #1#))
right?
NB: (setq print-circle t) before attempting the above!
> i.e. a value that is a quoted thing where the thing is the same value
> again (such a value exists in Elisp!) - what would evaluating
>
> (eq 'x x)
> (equal 'x x)
nil: you are comparing a symbol 'x' with a circular list
(quote (quote ...))
what you probably meant was
(eq x (eval x))
(equal x (eval x))
which both evaluate to t because eval just scrolls the circular list
once - to its original starting point
--
Sam Steingold (https://aphar.dreamwidth.org/) on darwin Ns 10.3.2113
https://lastingimpactpsychology.com https://steingoldpsychology.com
https://www.peaceandtolerance.org/ https://www.memritv.org
When C++ is your hammer, everything looks like a thumb.
next prev parent reply other threads:[~2022-11-02 14:25 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-31 8:15 Calling a function with undefined symbol Heime
2022-10-31 8:32 ` Jean Abou Samra
2022-10-31 8:42 ` tomas
2022-10-31 8:57 ` Heime
2022-10-31 9:07 ` tomas
2022-10-31 9:24 ` Jean Abou Samra
2022-10-31 9:43 ` Heime
2022-10-31 9:58 ` Jean Abou Samra
2022-10-31 10:57 ` Heime
2022-10-31 17:00 ` [External] : " Drew Adams
2022-10-31 17:10 ` Emanuel Berg
2022-11-01 4:11 ` Drew Adams
2022-11-01 5:24 ` tomas
2022-11-01 15:58 ` Drew Adams
2022-11-01 16:13 ` tomas
2022-11-01 19:22 ` Drew Adams
2022-10-31 12:29 ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-10-31 15:37 ` Emanuel Berg
2022-11-02 12:14 ` Michael Heerdegen
2022-11-02 14:25 ` Sam Steingold [this message]
2022-11-02 16:40 ` Michael Heerdegen
2022-11-02 17:28 ` Emanuel Berg
2022-11-02 23:04 ` Emanuel Berg
2022-11-03 11:09 ` Michael Heerdegen
2022-11-03 12:15 ` Emanuel Berg
2022-11-04 12:16 ` Michael Heerdegen
2022-11-05 14:32 ` Emanuel Berg
2022-11-05 23:22 ` Michael Heerdegen
2022-11-06 20:17 ` Emanuel Berg
2022-11-07 16:03 ` Michael Heerdegen
2022-11-07 16:50 ` [External] : " Drew Adams
2022-11-07 16:52 ` Emanuel Berg
2022-11-08 15:52 ` Michael Heerdegen
2022-11-08 19:15 ` tomas
2022-11-08 19:57 ` Michael Heerdegen
2022-11-08 20:47 ` tomas
2022-11-08 21:35 ` Sam Steingold
2022-11-08 23:53 ` Michael Heerdegen
2022-11-09 15:32 ` Sam Steingold
2022-11-09 15:59 ` Michael Heerdegen
2022-11-16 19:07 ` Emanuel Berg
2022-11-16 21:40 ` [External] : " Drew Adams
2022-11-16 21:55 ` Emanuel Berg
2022-11-04 14:33 ` Michael Heerdegen
2022-11-05 12:57 ` Emanuel Berg
2022-10-31 11:34 ` Emanuel Berg
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