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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
Subject: Re: (copy-marker nil)
Date: Mon, 07 May 2018 21:46:14 -0400	[thread overview]
Message-ID: <jwvh8nix6qo.fsf-monnier+gmane.emacs.help@gnu.org> (raw)
In-Reply-To: 34886144-0f66-5677-5054-b940cf0f6e76@easy-emacs.de

> Is there a use-case for a marker pointing nowhere?

Yes.

> From my point of view refusing to create such a marker makes sense.

It would break existing code.  BTW "check for a valid buffer position"
won't work with copy-marker for other reasons (e.g. (copy-marker 0)
returns a marker pointing to (point-min), even though 0 is not a valid
position).

I have no idea why you think copy-marker might be a good way to solve
your problem, but the evidence seems to suggest you should try
something else.


        Stefan




  reply	other threads:[~2018-05-08  1:46 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-07  8:19 (copy-marker nil) Andreas Röhler
2018-05-07 13:39 ` John Mastro
2018-05-07 14:23   ` Andreas Röhler
2018-05-07 13:55 ` Noam Postavsky
2018-05-07 14:20   ` Andreas Röhler
2018-05-07 14:26     ` Drew Adams
2018-05-07 17:16       ` Andreas Röhler
2018-05-08  1:46         ` Stefan Monnier [this message]
2018-05-08  8:44           ` Andreas Röhler
2018-05-12 22:06             ` Stefan Monnier

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