GNU bug report logs - #56641
Deprecate `lsh`

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Package: emacs;

Reported by: Mattias Engdegård <mattiase <at> acm.org>

Date: Tue, 19 Jul 2022 13:39:01 UTC

Severity: normal

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mattias Engdegård <mattiase <at> acm.org>
To: Emacs Bug Report <bug-gnu-emacs <at> gnu.org>
Subject: Deprecate `lsh`
Date: Tue, 19 Jul 2022 15:38:29 +0200

The function `lsh` works almost like `ash` but is much slower, cannot be constant-folded by the compiler, and above all has confusing semantics for historical reasons. Using `lsh` instead of `ash` is always a mistake.

For these reasons we should deprecate `lsh`. It is not important to remove it as soon as possible, but to dissuade people from accidentally using it in their code.
This bug report was last modified 2 years and 339 days ago.

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