emacs-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Emacs-diffs] emacs-25 3eb93c0: Rely on conservative stack scanning


From: Philipp Stephani
Subject: Re: [Emacs-diffs] emacs-25 3eb93c0: Rely on conservative stack scanning to find "emacs_value"s
Date: Tue, 29 Mar 2016 10:07:39 +0000



Paul Eggert <address@hidden> schrieb am So., 3. Jan. 2016 um 16:46 Uhr:
Daniel Colascione wrote:
> There was no consensus on this change.

What are the problems with it? Although Eli and I tweaked it later to fix some
warnings and sign-extension issues and make it go a bit faster, I didn't see any
major issues with the basic idea.


- From a user's perspective, it removes NULL as a sentinel value to signal an error.
- From a developer perspective, it adds low-level complexity, bit-twiddling, and possibly undefined behavior to a module that should only contain glue code between two interfaces. 

reply via email to

[Prev in Thread] Current Thread [Next in Thread]