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Re: [Emacs-diffs] emacs-26 9bf66c6: Don't run FOR_EACH_FRAME when there'


From: martin rudalics
Subject: Re: [Emacs-diffs] emacs-26 9bf66c6: Don't run FOR_EACH_FRAME when there's no frame left (Bug#29961)
Date: Mon, 18 Dec 2017 08:26:37 +0100

>>        eassume (CONSP (Vframe_list));
>>
>> now means that we can assume that `frame-list' is non-empty.  Isn't that
>> assumption incorrect in the scenario of the bug we're discussing here?
>

> Yes and no. The assumption is incorrect for this particular bug. But
> it is correct for the two instances of eassume (CONSP (Vframe_list))
> that I resurrected.

Those two instances have no connection with the bug.  It's the one in
delete_frame that caused the segfault.

martin



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