From: Philip Kaludercic <philipk@posteo.net>
To: Drew Adams <drew.adams@oracle.com>
Cc: Dr Rainer Woitok <rainer.woitok@gmail.com>,
"help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: Re: [External] : Re: (interactive) and &optional
Date: Sat, 25 Mar 2023 16:58:36 +0000 [thread overview]
Message-ID: <87sfds3gzn.fsf@posteo.net> (raw)
In-Reply-To: <SJ0PR10MB5488C5458E78CCF85AE5909CF3859@SJ0PR10MB5488.namprd10.prod.outlook.com> (Drew Adams's message of "Sat, 25 Mar 2023 14:33:46 +0000")
Drew Adams <drew.adams@oracle.com> writes:
>> it might also be that you are interning the empty string,
>> which creates a symbol with an empty string as the symbol name -- which
>> is not unique.
>
> What do you mean by "is not unique"?
Two symbols with the same symbol name (i.r.t. `equal') are not
necessarily the same symbol (i.r.t `eq'). So
(eq '## (make-symbol "")) ;=> nil
even though they both have the same name,
(equal (symbol-name '##) (symbol-name (make-symbol ""))) ;=> t
which is why I don't think that the name "the empty symbol" makes sense.
--
Philip Kaludercic
next prev parent reply other threads:[~2023-03-25 16:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-23 19:10 (interactive) and &optional Dr Rainer Woitok
2023-03-23 19:20 ` Philip Kaludercic
2023-03-25 12:35 ` Dr Rainer Woitok
2023-03-25 13:12 ` Philip Kaludercic
2023-03-25 14:33 ` [External] : " Drew Adams
2023-03-25 15:36 ` Dr Rainer Woitok
2023-03-25 16:58 ` Philip Kaludercic [this message]
2023-03-23 20:01 ` Emanuel Berg
2023-03-24 9:23 ` Jean Louis
2023-03-24 20:52 ` Philip Kaludercic
2023-03-24 21:07 ` Emanuel Berg
2023-03-27 1:52 ` [External] : " Drew Adams
2023-03-27 2:40 ` John Yates
2023-03-24 21:42 ` Jean Louis
2023-03-26 1:04 ` Emanuel Berg
2023-03-30 19:04 ` Jean Louis
2023-03-25 12:05 ` Dr Rainer Woitok
2023-03-25 14:32 ` Jean Louis
2023-03-25 15:41 ` Dr Rainer Woitok
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