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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: C-x ` (next-error) should be repeatable?
Date: Mon, 21 Jan 2019 05:27:02 +0200
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> From: "Alfred M. Szmidt" <ams@gnu.org>
> Cc: emacs-devel@gnu.org
> Date: Sun, 20 Jan 2019 15:23:37 -0500
> 
>    > It would make sense if C-x ` (next-error) was repeatable
> 
>    ??? It already is.
> 
> C-x ` ` ` ` results in going to one next-error, and three apostrophes
> in my buffer.

I meant the prefix argument, "C-u NUMBER".

For repeating like you meant, we have a general feature that can
repeat any command: type "C-x z" to repeat last command once, and then
continue typing 'z' any number of times.  Does that fit the bill?