* purpose of (provide 'hashtable-print-readable) in subr.el?
@ 2012-04-13 20:04 Michael Heerdegen
2012-04-14 3:36 ` Leo
2012-04-14 7:01 ` Andreas Schwab
0 siblings, 2 replies; 4+ messages in thread
From: Michael Heerdegen @ 2012-04-13 20:04 UTC (permalink / raw)
To: emacs-devel
Hi,
This looks odd to me: subr.el end with these lines:
| ;; The following statement ought to be in print.c, but `provide' can't
| ;; be used there.
| ;; http://lists.gnu.org/archive/html/emacs-devel/2009-08/msg00236.html
| (when (hash-table-p (car (read-from-string
| (prin1-to-string (make-hash-table)))))
| (provide 'hashtable-print-readable))
(Yes, I've read the mentioned thread in emacs-dev.)
What's the purpose of this `provide' call? I've downloaded
emacs-23.4.tar.gz from ftp.gnu.org. The only place where
hashtable-print-readable occurs in code (including C) is the above
occurrence in subr.el. And I don't see any reason why third party code
should want to test for such a feature. So, why is it provided at all?
Just curious...
Regards,
Michael.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: purpose of (provide 'hashtable-print-readable) in subr.el?
2012-04-13 20:04 purpose of (provide 'hashtable-print-readable) in subr.el? Michael Heerdegen
@ 2012-04-14 3:36 ` Leo
2012-04-14 7:01 ` Andreas Schwab
1 sibling, 0 replies; 4+ messages in thread
From: Leo @ 2012-04-14 3:36 UTC (permalink / raw)
To: emacs-devel
On 2012-04-14 04:04 +0800, Michael Heerdegen wrote:
> (Yes, I've read the mentioned thread in emacs-dev.)
>
> What's the purpose of this `provide' call? I've downloaded
> emacs-23.4.tar.gz from ftp.gnu.org. The only place where
> hashtable-print-readable occurs in code (including C) is the above
> occurrence in subr.el. And I don't see any reason why third party code
> should want to test for such a feature. So, why is it provided at all?
> Just curious...
Should just add (provide 'hashtable-print-readable) to bindings.el.
Leo
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: purpose of (provide 'hashtable-print-readable) in subr.el?
2012-04-13 20:04 purpose of (provide 'hashtable-print-readable) in subr.el? Michael Heerdegen
2012-04-14 3:36 ` Leo
@ 2012-04-14 7:01 ` Andreas Schwab
2012-04-15 17:29 ` Michael Heerdegen
1 sibling, 1 reply; 4+ messages in thread
From: Andreas Schwab @ 2012-04-14 7:01 UTC (permalink / raw)
To: Michael Heerdegen; +Cc: emacs-devel
Michael Heerdegen <michael_heerdegen@web.de> writes:
> Hi,
>
> This looks odd to me: subr.el end with these lines:
>
> | ;; The following statement ought to be in print.c, but `provide' can't
> | ;; be used there.
> | ;; http://lists.gnu.org/archive/html/emacs-devel/2009-08/msg00236.html
> | (when (hash-table-p (car (read-from-string
> | (prin1-to-string (make-hash-table)))))
> | (provide 'hashtable-print-readable))
>
> (Yes, I've read the mentioned thread in emacs-dev.)
>
> What's the purpose of this `provide' call?
http://comments.gmane.org/gmane.emacs.gnus.general/79821
https://raw.github.com/skeeto/emacs-java/master/java-docs.el
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: purpose of (provide 'hashtable-print-readable) in subr.el?
2012-04-14 7:01 ` Andreas Schwab
@ 2012-04-15 17:29 ` Michael Heerdegen
0 siblings, 0 replies; 4+ messages in thread
From: Michael Heerdegen @ 2012-04-15 17:29 UTC (permalink / raw)
To: emacs-devel
Hello,
> > | (provide 'hashtable-print-readable))
> > What's the purpose of this `provide' call?
>
> http://comments.gmane.org/gmane.emacs.gnus.general/79821
> https://raw.github.com/skeeto/emacs-java/master/java-docs.el
Ok, so it indeed is used somewhere. Thanks for the links.
Michael.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-04-15 17:29 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2012-04-13 20:04 purpose of (provide 'hashtable-print-readable) in subr.el? Michael Heerdegen
2012-04-14 3:36 ` Leo
2012-04-14 7:01 ` Andreas Schwab
2012-04-15 17:29 ` Michael Heerdegen
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